xref: /sqlite-3.40.0/src/test1.c (revision 8c53b4e7)
1 /*
2 ** 2001 September 15
3 **
4 ** The author disclaims copyright to this source code.  In place of
5 ** a legal notice, here is a blessing:
6 **
7 **    May you do good and not evil.
8 **    May you find forgiveness for yourself and forgive others.
9 **    May you share freely, never taking more than you give.
10 **
11 *************************************************************************
12 ** Code for testing all sorts of SQLite interfaces.  This code
13 ** is not included in the SQLite library.  It is used for automated
14 ** testing of the SQLite library.
15 */
16 #include "sqliteInt.h"
17 #if SQLITE_OS_WIN
18 #  include "os_win.h"
19 #endif
20 
21 #include "vdbeInt.h"
22 #if defined(INCLUDE_SQLITE_TCL_H)
23 #  include "sqlite_tcl.h"
24 #else
25 #  include "tcl.h"
26 #endif
27 #include <stdlib.h>
28 #include <string.h>
29 
30 /*
31 ** This is a copy of the first part of the SqliteDb structure in
32 ** tclsqlite.c.  We need it here so that the get_sqlite_pointer routine
33 ** can extract the sqlite3* pointer from an existing Tcl SQLite
34 ** connection.
35 */
36 struct SqliteDb {
37   sqlite3 *db;
38 };
39 
40 /*
41 ** Convert text generated by the "%p" conversion format back into
42 ** a pointer.
43 */
44 static int testHexToInt(int h){
45   if( h>='0' && h<='9' ){
46     return h - '0';
47   }else if( h>='a' && h<='f' ){
48     return h - 'a' + 10;
49   }else{
50     assert( h>='A' && h<='F' );
51     return h - 'A' + 10;
52   }
53 }
54 void *sqlite3TestTextToPtr(const char *z){
55   void *p;
56   u64 v;
57   u32 v2;
58   if( z[0]=='0' && z[1]=='x' ){
59     z += 2;
60   }
61   v = 0;
62   while( *z ){
63     v = (v<<4) + testHexToInt(*z);
64     z++;
65   }
66   if( sizeof(p)==sizeof(v) ){
67     memcpy(&p, &v, sizeof(p));
68   }else{
69     assert( sizeof(p)==sizeof(v2) );
70     v2 = (u32)v;
71     memcpy(&p, &v2, sizeof(p));
72   }
73   return p;
74 }
75 
76 
77 /*
78 ** A TCL command that returns the address of the sqlite* pointer
79 ** for an sqlite connection instance.  Bad things happen if the
80 ** input is not an sqlite connection.
81 */
82 static int SQLITE_TCLAPI get_sqlite_pointer(
83   void * clientData,
84   Tcl_Interp *interp,
85   int objc,
86   Tcl_Obj *CONST objv[]
87 ){
88   struct SqliteDb *p;
89   Tcl_CmdInfo cmdInfo;
90   char zBuf[100];
91   if( objc!=2 ){
92     Tcl_WrongNumArgs(interp, 1, objv, "SQLITE-CONNECTION");
93     return TCL_ERROR;
94   }
95   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
96     Tcl_AppendResult(interp, "command not found: ",
97            Tcl_GetString(objv[1]), (char*)0);
98     return TCL_ERROR;
99   }
100   p = (struct SqliteDb*)cmdInfo.objClientData;
101   sqlite3_snprintf(sizeof(zBuf), zBuf, "%p", p->db);
102   Tcl_AppendResult(interp, zBuf, 0);
103   return TCL_OK;
104 }
105 
106 /*
107 ** Decode a pointer to an sqlite3 object.
108 */
109 int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb){
110   struct SqliteDb *p;
111   Tcl_CmdInfo cmdInfo;
112   if( Tcl_GetCommandInfo(interp, zA, &cmdInfo) ){
113     p = (struct SqliteDb*)cmdInfo.objClientData;
114     *ppDb = p->db;
115   }else{
116     *ppDb = (sqlite3*)sqlite3TestTextToPtr(zA);
117   }
118   return TCL_OK;
119 }
120 
121 #if SQLITE_OS_WIN
122 /*
123 ** Decode a Win32 HANDLE object.
124 */
125 int getWin32Handle(Tcl_Interp *interp, const char *zA, LPHANDLE phFile){
126   *phFile = (HANDLE)sqlite3TestTextToPtr(zA);
127   return TCL_OK;
128 }
129 #endif
130 
131 extern const char *sqlite3ErrName(int);
132 #define t1ErrorName sqlite3ErrName
133 
134 /*
135 ** Convert an sqlite3_stmt* into an sqlite3*.  This depends on the
136 ** fact that the sqlite3* is the first field in the Vdbe structure.
137 */
138 #define StmtToDb(X)   sqlite3_db_handle(X)
139 
140 /*
141 ** Check a return value to make sure it agrees with the results
142 ** from sqlite3_errcode.
143 */
144 int sqlite3TestErrCode(Tcl_Interp *interp, sqlite3 *db, int rc){
145   if( sqlite3_threadsafe()==0 && rc!=SQLITE_MISUSE && rc!=SQLITE_OK
146    && sqlite3_errcode(db)!=rc ){
147     char zBuf[200];
148     int r2 = sqlite3_errcode(db);
149     sqlite3_snprintf(sizeof(zBuf), zBuf,
150        "error code %s (%d) does not match sqlite3_errcode %s (%d)",
151        t1ErrorName(rc), rc, t1ErrorName(r2), r2);
152     Tcl_ResetResult(interp);
153     Tcl_AppendResult(interp, zBuf, 0);
154     return 1;
155   }
156   return 0;
157 }
158 
159 /*
160 ** Decode a pointer to an sqlite3_stmt object.
161 */
162 static int getStmtPointer(
163   Tcl_Interp *interp,
164   const char *zArg,
165   sqlite3_stmt **ppStmt
166 ){
167   *ppStmt = (sqlite3_stmt*)sqlite3TestTextToPtr(zArg);
168   return TCL_OK;
169 }
170 
171 /*
172 ** Generate a text representation of a pointer that can be understood
173 ** by the getDbPointer and getVmPointer routines above.
174 **
175 ** The problem is, on some machines (Solaris) if you do a printf with
176 ** "%p" you cannot turn around and do a scanf with the same "%p" and
177 ** get your pointer back.  You have to prepend a "0x" before it will
178 ** work.  Or at least that is what is reported to me (drh).  But this
179 ** behavior varies from machine to machine.  The solution used her is
180 ** to test the string right after it is generated to see if it can be
181 ** understood by scanf, and if not, try prepending an "0x" to see if
182 ** that helps.  If nothing works, a fatal error is generated.
183 */
184 int sqlite3TestMakePointerStr(Tcl_Interp *interp, char *zPtr, void *p){
185   sqlite3_snprintf(100, zPtr, "%p", p);
186   return TCL_OK;
187 }
188 
189 /*
190 ** The callback routine for sqlite3_exec_printf().
191 */
192 static int exec_printf_cb(void *pArg, int argc, char **argv, char **name){
193   Tcl_DString *str = (Tcl_DString*)pArg;
194   int i;
195 
196   if( Tcl_DStringLength(str)==0 ){
197     for(i=0; i<argc; i++){
198       Tcl_DStringAppendElement(str, name[i] ? name[i] : "NULL");
199     }
200   }
201   for(i=0; i<argc; i++){
202     Tcl_DStringAppendElement(str, argv[i] ? argv[i] : "NULL");
203   }
204   return 0;
205 }
206 
207 /*
208 ** The I/O tracing callback.
209 */
210 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
211 static FILE *iotrace_file = 0;
212 static void io_trace_callback(const char *zFormat, ...){
213   va_list ap;
214   va_start(ap, zFormat);
215   vfprintf(iotrace_file, zFormat, ap);
216   va_end(ap);
217   fflush(iotrace_file);
218 }
219 #endif
220 
221 /*
222 ** Usage:  io_trace FILENAME
223 **
224 ** Turn I/O tracing on or off.  If FILENAME is not an empty string,
225 ** I/O tracing begins going into FILENAME. If FILENAME is an empty
226 ** string, I/O tracing is turned off.
227 */
228 static int SQLITE_TCLAPI test_io_trace(
229   void *NotUsed,
230   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
231   int argc,              /* Number of arguments */
232   char **argv            /* Text of each argument */
233 ){
234 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
235   if( argc!=2 ){
236     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
237           " FILENAME\"", 0);
238     return TCL_ERROR;
239   }
240   if( iotrace_file ){
241     if( iotrace_file!=stdout && iotrace_file!=stderr ){
242       fclose(iotrace_file);
243     }
244     iotrace_file = 0;
245     sqlite3IoTrace = 0;
246   }
247   if( argv[1][0] ){
248     if( strcmp(argv[1],"stdout")==0 ){
249       iotrace_file = stdout;
250     }else if( strcmp(argv[1],"stderr")==0 ){
251       iotrace_file = stderr;
252     }else{
253       iotrace_file = fopen(argv[1], "w");
254     }
255     sqlite3IoTrace = io_trace_callback;
256   }
257 #endif
258   return TCL_OK;
259 }
260 
261 /*
262 ** Usage:  clang_sanitize_address
263 **
264 ** Returns true if the program was compiled using clang with the
265 ** -fsanitize=address switch on the command line. False otherwise.
266 **
267 ** Also return true if the OMIT_MISUSE environment variable exists.
268 */
269 static int SQLITE_TCLAPI clang_sanitize_address(
270   void *NotUsed,
271   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
272   int argc,              /* Number of arguments */
273   char **argv            /* Text of each argument */
274 ){
275   int res = 0;
276 #if defined(__has_feature)
277 # if __has_feature(address_sanitizer)
278   res = 1;
279 # endif
280 #endif
281 #ifdef __SANITIZE_ADDRESS__
282   res = 1;
283 #endif
284   if( res==0 && getenv("OMIT_MISUSE")!=0 ) res = 1;
285   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
286   return TCL_OK;
287 }
288 
289 /*
290 ** Usage:  sqlite3_exec_printf  DB  FORMAT  STRING
291 **
292 ** Invoke the sqlite3_exec_printf() interface using the open database
293 ** DB.  The SQL is the string FORMAT.  The format string should contain
294 ** one %s or %q.  STRING is the value inserted into %s or %q.
295 */
296 static int SQLITE_TCLAPI test_exec_printf(
297   void *NotUsed,
298   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
299   int argc,              /* Number of arguments */
300   char **argv            /* Text of each argument */
301 ){
302   sqlite3 *db;
303   Tcl_DString str;
304   int rc;
305   char *zErr = 0;
306   char *zSql;
307   char zBuf[30];
308   if( argc!=4 ){
309     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
310        " DB FORMAT STRING", 0);
311     return TCL_ERROR;
312   }
313   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
314   Tcl_DStringInit(&str);
315   zSql = sqlite3_mprintf(argv[2], argv[3]);
316   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
317   sqlite3_free(zSql);
318   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", rc);
319   Tcl_AppendElement(interp, zBuf);
320   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
321   Tcl_DStringFree(&str);
322   if( zErr ) sqlite3_free(zErr);
323   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
324   return TCL_OK;
325 }
326 
327 /*
328 ** Usage:  sqlite3_exec_hex  DB  HEX
329 **
330 ** Invoke the sqlite3_exec() on a string that is obtained by translating
331 ** HEX into ASCII.  Most characters are translated as is.  %HH becomes
332 ** a hex character.
333 */
334 static int SQLITE_TCLAPI test_exec_hex(
335   void *NotUsed,
336   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
337   int argc,              /* Number of arguments */
338   char **argv            /* Text of each argument */
339 ){
340   sqlite3 *db;
341   Tcl_DString str;
342   int rc, i, j;
343   char *zErr = 0;
344   char *zHex;
345   char zSql[501];
346   char zBuf[30];
347   if( argc!=3 ){
348     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
349        " DB HEX", 0);
350     return TCL_ERROR;
351   }
352   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
353   zHex = argv[2];
354   for(i=j=0; i<(sizeof(zSql)-1) && zHex[j]; i++, j++){
355     if( zHex[j]=='%' && zHex[j+2] && zHex[j+2] ){
356       zSql[i] = (testHexToInt(zHex[j+1])<<4) + testHexToInt(zHex[j+2]);
357       j += 2;
358     }else{
359       zSql[i] = zHex[j];
360     }
361   }
362   zSql[i] = 0;
363   Tcl_DStringInit(&str);
364   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
365   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", rc);
366   Tcl_AppendElement(interp, zBuf);
367   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
368   Tcl_DStringFree(&str);
369   if( zErr ) sqlite3_free(zErr);
370   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
371   return TCL_OK;
372 }
373 
374 /*
375 ** Usage:  db_enter DB
376 **         db_leave DB
377 **
378 ** Enter or leave the mutex on a database connection.
379 */
380 static int SQLITE_TCLAPI db_enter(
381   void *NotUsed,
382   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
383   int argc,              /* Number of arguments */
384   char **argv            /* Text of each argument */
385 ){
386   sqlite3 *db;
387   if( argc!=2 ){
388     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
389        " DB", 0);
390     return TCL_ERROR;
391   }
392   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
393   sqlite3_mutex_enter(db->mutex);
394   return TCL_OK;
395 }
396 static int SQLITE_TCLAPI db_leave(
397   void *NotUsed,
398   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
399   int argc,              /* Number of arguments */
400   char **argv            /* Text of each argument */
401 ){
402   sqlite3 *db;
403   if( argc!=2 ){
404     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
405        " DB", 0);
406     return TCL_ERROR;
407   }
408   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
409   sqlite3_mutex_leave(db->mutex);
410   return TCL_OK;
411 }
412 
413 /*
414 ** Usage:  sqlite3_exec  DB  SQL
415 **
416 ** Invoke the sqlite3_exec interface using the open database DB
417 */
418 static int SQLITE_TCLAPI test_exec(
419   void *NotUsed,
420   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
421   int argc,              /* Number of arguments */
422   char **argv            /* Text of each argument */
423 ){
424   sqlite3 *db;
425   Tcl_DString str;
426   int rc;
427   char *zErr = 0;
428   char *zSql;
429   int i, j;
430   char zBuf[30];
431   if( argc!=3 ){
432     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
433        " DB SQL", 0);
434     return TCL_ERROR;
435   }
436   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
437   Tcl_DStringInit(&str);
438   zSql = sqlite3_mprintf("%s", argv[2]);
439   for(i=j=0; zSql[i];){
440     if( zSql[i]=='%' ){
441       zSql[j++] = (testHexToInt(zSql[i+1])<<4) + testHexToInt(zSql[i+2]);
442       i += 3;
443     }else{
444       zSql[j++] = zSql[i++];
445     }
446   }
447   zSql[j] = 0;
448   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
449   sqlite3_free(zSql);
450   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", rc);
451   Tcl_AppendElement(interp, zBuf);
452   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
453   Tcl_DStringFree(&str);
454   if( zErr ) sqlite3_free(zErr);
455   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
456   return TCL_OK;
457 }
458 
459 /*
460 ** Usage:  sqlite3_exec_nr  DB  SQL
461 **
462 ** Invoke the sqlite3_exec interface using the open database DB.  Discard
463 ** all results
464 */
465 static int SQLITE_TCLAPI test_exec_nr(
466   void *NotUsed,
467   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
468   int argc,              /* Number of arguments */
469   char **argv            /* Text of each argument */
470 ){
471   sqlite3 *db;
472   int rc;
473   char *zErr = 0;
474   if( argc!=3 ){
475     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
476        " DB SQL", 0);
477     return TCL_ERROR;
478   }
479   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
480   rc = sqlite3_exec(db, argv[2], 0, 0, &zErr);
481   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
482   return TCL_OK;
483 }
484 
485 /*
486 ** Usage:  sqlite3_mprintf_z_test  SEPARATOR  ARG0  ARG1 ...
487 **
488 ** Test the %z format of sqlite_mprintf().  Use multiple mprintf() calls to
489 ** concatenate arg0 through argn using separator as the separator.
490 ** Return the result.
491 */
492 static int SQLITE_TCLAPI test_mprintf_z(
493   void *NotUsed,
494   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
495   int argc,              /* Number of arguments */
496   char **argv            /* Text of each argument */
497 ){
498   char *zResult = 0;
499   int i;
500 
501   for(i=2; i<argc && (i==2 || zResult); i++){
502     zResult = sqlite3_mprintf("%z%s%s", zResult, argv[1], argv[i]);
503   }
504   Tcl_AppendResult(interp, zResult, 0);
505   sqlite3_free(zResult);
506   return TCL_OK;
507 }
508 
509 /*
510 ** Usage:  sqlite3_mprintf_n_test  STRING
511 **
512 ** Test the %n format of sqlite_mprintf().  Return the length of the
513 ** input string.
514 */
515 static int SQLITE_TCLAPI test_mprintf_n(
516   void *NotUsed,
517   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
518   int argc,              /* Number of arguments */
519   char **argv            /* Text of each argument */
520 ){
521   char *zStr;
522   int n = 0;
523   zStr = sqlite3_mprintf("%s%n", argv[1], &n);
524   sqlite3_free(zStr);
525   Tcl_SetObjResult(interp, Tcl_NewIntObj(n));
526   return TCL_OK;
527 }
528 
529 /*
530 ** Usage:  sqlite3_snprintf_int  SIZE FORMAT  INT
531 **
532 ** Test the of sqlite3_snprintf() routine.  SIZE is the size of the
533 ** output buffer in bytes.  The maximum size is 100.  FORMAT is the
534 ** format string.  INT is a single integer argument.  The FORMAT
535 ** string must require no more than this one integer argument.  If
536 ** You pass in a format string that requires more than one argument,
537 ** bad things will happen.
538 */
539 static int SQLITE_TCLAPI test_snprintf_int(
540   void *NotUsed,
541   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
542   int argc,              /* Number of arguments */
543   char **argv            /* Text of each argument */
544 ){
545   char zStr[100];
546   int n = atoi(argv[1]);
547   const char *zFormat = argv[2];
548   int a1 = atoi(argv[3]);
549   if( n>sizeof(zStr) ) n = sizeof(zStr);
550   sqlite3_snprintf(sizeof(zStr), zStr, "abcdefghijklmnopqrstuvwxyz");
551   sqlite3_snprintf(n, zStr, zFormat, a1);
552   Tcl_AppendResult(interp, zStr, 0);
553   return TCL_OK;
554 }
555 
556 #ifndef SQLITE_OMIT_GET_TABLE
557 
558 /*
559 ** Usage:  sqlite3_get_table_printf  DB  FORMAT  STRING  ?--no-counts?
560 **
561 ** Invoke the sqlite3_get_table_printf() interface using the open database
562 ** DB.  The SQL is the string FORMAT.  The format string should contain
563 ** one %s or %q.  STRING is the value inserted into %s or %q.
564 */
565 static int SQLITE_TCLAPI test_get_table_printf(
566   void *NotUsed,
567   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
568   int argc,              /* Number of arguments */
569   char **argv            /* Text of each argument */
570 ){
571   sqlite3 *db;
572   Tcl_DString str;
573   int rc;
574   char *zErr = 0;
575   int nRow = 0, nCol = 0;
576   char **aResult;
577   int i;
578   char zBuf[30];
579   char *zSql;
580   int resCount = -1;
581   if( argc==5 ){
582     if( Tcl_GetInt(interp, argv[4], &resCount) ) return TCL_ERROR;
583   }
584   if( argc!=4 && argc!=5 ){
585     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
586        " DB FORMAT STRING ?COUNT?", 0);
587     return TCL_ERROR;
588   }
589   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
590   Tcl_DStringInit(&str);
591   zSql = sqlite3_mprintf(argv[2],argv[3]);
592   if( argc==5 ){
593     rc = sqlite3_get_table(db, zSql, &aResult, 0, 0, &zErr);
594   }else{
595     rc = sqlite3_get_table(db, zSql, &aResult, &nRow, &nCol, &zErr);
596     resCount = (nRow+1)*nCol;
597   }
598   sqlite3_free(zSql);
599   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", rc);
600   Tcl_AppendElement(interp, zBuf);
601   if( rc==SQLITE_OK ){
602     if( argc==4 ){
603       sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", nRow);
604       Tcl_AppendElement(interp, zBuf);
605       sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", nCol);
606       Tcl_AppendElement(interp, zBuf);
607     }
608     for(i=0; i<resCount; i++){
609       Tcl_AppendElement(interp, aResult[i] ? aResult[i] : "NULL");
610     }
611   }else{
612     Tcl_AppendElement(interp, zErr);
613   }
614   sqlite3_free_table(aResult);
615   if( zErr ) sqlite3_free(zErr);
616   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
617   return TCL_OK;
618 }
619 
620 #endif /* SQLITE_OMIT_GET_TABLE */
621 
622 
623 /*
624 ** Usage:  sqlite3_last_insert_rowid DB
625 **
626 ** Returns the integer ROWID of the most recent insert.
627 */
628 static int SQLITE_TCLAPI test_last_rowid(
629   void *NotUsed,
630   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
631   int argc,              /* Number of arguments */
632   char **argv            /* Text of each argument */
633 ){
634   sqlite3 *db;
635   char zBuf[30];
636 
637   if( argc!=2 ){
638     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB\"", 0);
639     return TCL_ERROR;
640   }
641   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
642   sqlite3_snprintf(sizeof(zBuf), zBuf, "%lld", sqlite3_last_insert_rowid(db));
643   Tcl_AppendResult(interp, zBuf, 0);
644   return SQLITE_OK;
645 }
646 
647 /*
648 ** Usage:  sqlite3_key DB KEY
649 **
650 ** Set the codec key.
651 */
652 static int SQLITE_TCLAPI test_key(
653   void *NotUsed,
654   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
655   int argc,              /* Number of arguments */
656   char **argv            /* Text of each argument */
657 ){
658 #if defined(SQLITE_HAS_CODEC) && !defined(SQLITE_OMIT_CODEC_FROM_TCL)
659   sqlite3 *db;
660   const char *zKey;
661   int nKey;
662   if( argc!=3 ){
663     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
664        " FILENAME\"", 0);
665     return TCL_ERROR;
666   }
667   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
668   zKey = argv[2];
669   nKey = strlen(zKey);
670   sqlite3_key(db, zKey, nKey);
671 #endif
672   return TCL_OK;
673 }
674 
675 /*
676 ** Usage:  sqlite3_rekey DB KEY
677 **
678 ** Change the codec key.
679 */
680 static int SQLITE_TCLAPI test_rekey(
681   void *NotUsed,
682   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
683   int argc,              /* Number of arguments */
684   char **argv            /* Text of each argument */
685 ){
686 #ifdef SQLITE_HAS_CODEC
687   sqlite3 *db;
688   const char *zKey;
689   int nKey;
690   if( argc!=3 ){
691     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
692        " FILENAME\"", 0);
693     return TCL_ERROR;
694   }
695   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
696   zKey = argv[2];
697   nKey = strlen(zKey);
698   sqlite3_rekey(db, zKey, nKey);
699 #endif
700   return TCL_OK;
701 }
702 
703 /*
704 ** Usage:  sqlite3_close DB
705 **
706 ** Closes the database opened by sqlite3_open.
707 */
708 static int SQLITE_TCLAPI sqlite_test_close(
709   void *NotUsed,
710   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
711   int argc,              /* Number of arguments */
712   char **argv            /* Text of each argument */
713 ){
714   sqlite3 *db;
715   int rc;
716   if( argc!=2 ){
717     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
718        " FILENAME\"", 0);
719     return TCL_ERROR;
720   }
721   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
722   rc = sqlite3_close(db);
723   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
724   return TCL_OK;
725 }
726 
727 /*
728 ** Usage:  sqlite3_close_v2 DB
729 **
730 ** Closes the database opened by sqlite3_open.
731 */
732 static int SQLITE_TCLAPI sqlite_test_close_v2(
733   void *NotUsed,
734   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
735   int argc,              /* Number of arguments */
736   char **argv            /* Text of each argument */
737 ){
738   sqlite3 *db;
739   int rc;
740   if( argc!=2 ){
741     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
742        " FILENAME\"", 0);
743     return TCL_ERROR;
744   }
745   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
746   rc = sqlite3_close_v2(db);
747   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
748   return TCL_OK;
749 }
750 
751 /*
752 ** Implementation of the x_coalesce() function.
753 ** Return the first argument non-NULL argument.
754 */
755 static void t1_ifnullFunc(
756   sqlite3_context *context,
757   int argc,
758   sqlite3_value **argv
759 ){
760   int i;
761   for(i=0; i<argc; i++){
762     if( SQLITE_NULL!=sqlite3_value_type(argv[i]) ){
763       int n = sqlite3_value_bytes(argv[i]);
764       sqlite3_result_text(context, (char*)sqlite3_value_text(argv[i]),
765           n, SQLITE_TRANSIENT);
766       break;
767     }
768   }
769 }
770 
771 /*
772 ** These are test functions.    hex8() interprets its argument as
773 ** UTF8 and returns a hex encoding.  hex16le() interprets its argument
774 ** as UTF16le and returns a hex encoding.
775 */
776 static void hex8Func(sqlite3_context *p, int argc, sqlite3_value **argv){
777   const unsigned char *z;
778   int i;
779   char zBuf[200];
780   z = sqlite3_value_text(argv[0]);
781   for(i=0; i<sizeof(zBuf)/2 - 2 && z[i]; i++){
782     sqlite3_snprintf(sizeof(zBuf)-i*2, &zBuf[i*2], "%02x", z[i]);
783   }
784   zBuf[i*2] = 0;
785   sqlite3_result_text(p, (char*)zBuf, -1, SQLITE_TRANSIENT);
786 }
787 #ifndef SQLITE_OMIT_UTF16
788 static void hex16Func(sqlite3_context *p, int argc, sqlite3_value **argv){
789   const unsigned short int *z;
790   int i;
791   char zBuf[400];
792   z = sqlite3_value_text16(argv[0]);
793   for(i=0; i<sizeof(zBuf)/4 - 4 && z[i]; i++){
794     sqlite3_snprintf(sizeof(zBuf)-i*4, &zBuf[i*4],"%04x", z[i]&0xff);
795   }
796   zBuf[i*4] = 0;
797   sqlite3_result_text(p, (char*)zBuf, -1, SQLITE_TRANSIENT);
798 }
799 #endif
800 
801 /*
802 ** A structure into which to accumulate text.
803 */
804 struct dstr {
805   int nAlloc;  /* Space allocated */
806   int nUsed;   /* Space used */
807   char *z;     /* The space */
808 };
809 
810 /*
811 ** Append text to a dstr
812 */
813 static void dstrAppend(struct dstr *p, const char *z, int divider){
814   int n = (int)strlen(z);
815   if( p->nUsed + n + 2 > p->nAlloc ){
816     char *zNew;
817     p->nAlloc = p->nAlloc*2 + n + 200;
818     zNew = sqlite3_realloc(p->z, p->nAlloc);
819     if( zNew==0 ){
820       sqlite3_free(p->z);
821       memset(p, 0, sizeof(*p));
822       return;
823     }
824     p->z = zNew;
825   }
826   if( divider && p->nUsed>0 ){
827     p->z[p->nUsed++] = divider;
828   }
829   memcpy(&p->z[p->nUsed], z, n+1);
830   p->nUsed += n;
831 }
832 
833 /*
834 ** Invoked for each callback from sqlite3ExecFunc
835 */
836 static int execFuncCallback(void *pData, int argc, char **argv, char **NotUsed){
837   struct dstr *p = (struct dstr*)pData;
838   int i;
839   for(i=0; i<argc; i++){
840     if( argv[i]==0 ){
841       dstrAppend(p, "NULL", ' ');
842     }else{
843       dstrAppend(p, argv[i], ' ');
844     }
845   }
846   return 0;
847 }
848 
849 /*
850 ** Implementation of the x_sqlite_exec() function.  This function takes
851 ** a single argument and attempts to execute that argument as SQL code.
852 ** This is illegal and should set the SQLITE_MISUSE flag on the database.
853 **
854 ** 2004-Jan-07:  We have changed this to make it legal to call sqlite3_exec()
855 ** from within a function call.
856 **
857 ** This routine simulates the effect of having two threads attempt to
858 ** use the same database at the same time.
859 */
860 static void sqlite3ExecFunc(
861   sqlite3_context *context,
862   int argc,
863   sqlite3_value **argv
864 ){
865   struct dstr x;
866   memset(&x, 0, sizeof(x));
867   (void)sqlite3_exec((sqlite3*)sqlite3_user_data(context),
868       (char*)sqlite3_value_text(argv[0]),
869       execFuncCallback, &x, 0);
870   sqlite3_result_text(context, x.z, x.nUsed, SQLITE_TRANSIENT);
871   sqlite3_free(x.z);
872 }
873 
874 /*
875 ** Implementation of tkt2213func(), a scalar function that takes exactly
876 ** one argument. It has two interesting features:
877 **
878 ** * It calls sqlite3_value_text() 3 times on the argument sqlite3_value*.
879 **   If the three pointers returned are not the same an SQL error is raised.
880 **
881 ** * Otherwise it returns a copy of the text representation of its
882 **   argument in such a way as the VDBE representation is a Mem* cell
883 **   with the MEM_Term flag clear.
884 **
885 ** Ticket #2213 can therefore be tested by evaluating the following
886 ** SQL expression:
887 **
888 **   tkt2213func(tkt2213func('a string'));
889 */
890 static void tkt2213Function(
891   sqlite3_context *context,
892   int argc,
893   sqlite3_value **argv
894 ){
895   int nText;
896   unsigned char const *zText1;
897   unsigned char const *zText2;
898   unsigned char const *zText3;
899 
900   nText = sqlite3_value_bytes(argv[0]);
901   zText1 = sqlite3_value_text(argv[0]);
902   zText2 = sqlite3_value_text(argv[0]);
903   zText3 = sqlite3_value_text(argv[0]);
904 
905   if( zText1!=zText2 || zText2!=zText3 ){
906     sqlite3_result_error(context, "tkt2213 is not fixed", -1);
907   }else{
908     char *zCopy = (char *)sqlite3_malloc(nText);
909     memcpy(zCopy, zText1, nText);
910     sqlite3_result_text(context, zCopy, nText, sqlite3_free);
911   }
912 }
913 
914 /*
915 ** The following SQL function takes 4 arguments.  The 2nd and
916 ** 4th argument must be one of these strings:  'text', 'text16',
917 ** or 'blob' corresponding to API functions
918 **
919 **      sqlite3_value_text()
920 **      sqlite3_value_text16()
921 **      sqlite3_value_blob()
922 **
923 ** The third argument is a string, either 'bytes' or 'bytes16' or 'noop',
924 ** corresponding to APIs:
925 **
926 **      sqlite3_value_bytes()
927 **      sqlite3_value_bytes16()
928 **      noop
929 **
930 ** The APIs designated by the 2nd through 4th arguments are applied
931 ** to the first argument in order.  If the pointers returned by the
932 ** second and fourth are different, this routine returns 1.  Otherwise,
933 ** this routine returns 0.
934 **
935 ** This function is used to test to see when returned pointers from
936 ** the _text(), _text16() and _blob() APIs become invalidated.
937 */
938 static void ptrChngFunction(
939   sqlite3_context *context,
940   int argc,
941   sqlite3_value **argv
942 ){
943   const void *p1, *p2;
944   const char *zCmd;
945   if( argc!=4 ) return;
946   zCmd = (const char*)sqlite3_value_text(argv[1]);
947   if( zCmd==0 ) return;
948   if( strcmp(zCmd,"text")==0 ){
949     p1 = (const void*)sqlite3_value_text(argv[0]);
950 #ifndef SQLITE_OMIT_UTF16
951   }else if( strcmp(zCmd, "text16")==0 ){
952     p1 = (const void*)sqlite3_value_text16(argv[0]);
953 #endif
954   }else if( strcmp(zCmd, "blob")==0 ){
955     p1 = (const void*)sqlite3_value_blob(argv[0]);
956   }else{
957     return;
958   }
959   zCmd = (const char*)sqlite3_value_text(argv[2]);
960   if( zCmd==0 ) return;
961   if( strcmp(zCmd,"bytes")==0 ){
962     sqlite3_value_bytes(argv[0]);
963 #ifndef SQLITE_OMIT_UTF16
964   }else if( strcmp(zCmd, "bytes16")==0 ){
965     sqlite3_value_bytes16(argv[0]);
966 #endif
967   }else if( strcmp(zCmd, "noop")==0 ){
968     /* do nothing */
969   }else{
970     return;
971   }
972   zCmd = (const char*)sqlite3_value_text(argv[3]);
973   if( zCmd==0 ) return;
974   if( strcmp(zCmd,"text")==0 ){
975     p2 = (const void*)sqlite3_value_text(argv[0]);
976 #ifndef SQLITE_OMIT_UTF16
977   }else if( strcmp(zCmd, "text16")==0 ){
978     p2 = (const void*)sqlite3_value_text16(argv[0]);
979 #endif
980   }else if( strcmp(zCmd, "blob")==0 ){
981     p2 = (const void*)sqlite3_value_blob(argv[0]);
982   }else{
983     return;
984   }
985   sqlite3_result_int(context, p1!=p2);
986 }
987 
988 /*
989 ** This SQL function returns a different answer each time it is called, even if
990 ** the arguments are the same.
991 */
992 static void nondeterministicFunction(
993   sqlite3_context *context,
994   int argc,
995   sqlite3_value **argv
996 ){
997   static int cnt = 0;
998   sqlite3_result_int(context, cnt++);
999 }
1000 
1001 /*
1002 ** Usage:  sqlite3_create_function DB
1003 **
1004 ** Call the sqlite3_create_function API on the given database in order
1005 ** to create a function named "x_coalesce".  This function does the same thing
1006 ** as the "coalesce" function.  This function also registers an SQL function
1007 ** named "x_sqlite_exec" that invokes sqlite3_exec().  Invoking sqlite3_exec()
1008 ** in this way is illegal recursion and should raise an SQLITE_MISUSE error.
1009 ** The effect is similar to trying to use the same database connection from
1010 ** two threads at the same time.
1011 **
1012 ** The original motivation for this routine was to be able to call the
1013 ** sqlite3_create_function function while a query is in progress in order
1014 ** to test the SQLITE_MISUSE detection logic.
1015 */
1016 static int SQLITE_TCLAPI test_create_function(
1017   void *NotUsed,
1018   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1019   int argc,              /* Number of arguments */
1020   char **argv            /* Text of each argument */
1021 ){
1022   int rc;
1023   sqlite3 *db;
1024 
1025   if( argc!=2 ){
1026     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1027        " DB\"", 0);
1028     return TCL_ERROR;
1029   }
1030   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1031   rc = sqlite3_create_function(db, "x_coalesce", -1, SQLITE_UTF8, 0,
1032         t1_ifnullFunc, 0, 0);
1033   if( rc==SQLITE_OK ){
1034     rc = sqlite3_create_function(db, "hex8", 1, SQLITE_UTF8 | SQLITE_DETERMINISTIC,
1035           0, hex8Func, 0, 0);
1036   }
1037 #ifndef SQLITE_OMIT_UTF16
1038   if( rc==SQLITE_OK ){
1039     rc = sqlite3_create_function(db, "hex16", 1, SQLITE_UTF16 | SQLITE_DETERMINISTIC,
1040           0, hex16Func, 0, 0);
1041   }
1042 #endif
1043   if( rc==SQLITE_OK ){
1044     rc = sqlite3_create_function(db, "tkt2213func", 1, SQLITE_ANY, 0,
1045           tkt2213Function, 0, 0);
1046   }
1047   if( rc==SQLITE_OK ){
1048     rc = sqlite3_create_function(db, "pointer_change", 4, SQLITE_ANY, 0,
1049           ptrChngFunction, 0, 0);
1050   }
1051 
1052   /* Functions counter1() and counter2() have the same implementation - they
1053   ** both return an ascending integer with each call.  But counter1() is marked
1054   ** as non-deterministic and counter2() is marked as deterministic.
1055   */
1056   if( rc==SQLITE_OK ){
1057     rc = sqlite3_create_function(db, "counter1", -1, SQLITE_UTF8,
1058           0, nondeterministicFunction, 0, 0);
1059   }
1060   if( rc==SQLITE_OK ){
1061     rc = sqlite3_create_function(db, "counter2", -1, SQLITE_UTF8|SQLITE_DETERMINISTIC,
1062           0, nondeterministicFunction, 0, 0);
1063   }
1064 
1065 #ifndef SQLITE_OMIT_UTF16
1066   /* Use the sqlite3_create_function16() API here. Mainly for fun, but also
1067   ** because it is not tested anywhere else. */
1068   if( rc==SQLITE_OK ){
1069     const void *zUtf16;
1070     sqlite3_value *pVal;
1071     sqlite3_mutex_enter(db->mutex);
1072     pVal = sqlite3ValueNew(db);
1073     sqlite3ValueSetStr(pVal, -1, "x_sqlite_exec", SQLITE_UTF8, SQLITE_STATIC);
1074     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
1075     if( db->mallocFailed ){
1076       rc = SQLITE_NOMEM;
1077     }else{
1078       rc = sqlite3_create_function16(db, zUtf16,
1079                 1, SQLITE_UTF16, db, sqlite3ExecFunc, 0, 0);
1080     }
1081     sqlite3ValueFree(pVal);
1082     sqlite3_mutex_leave(db->mutex);
1083   }
1084 #endif
1085 
1086   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1087   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
1088   return TCL_OK;
1089 }
1090 
1091 /*
1092 ** Routines to implement the x_count() aggregate function.
1093 **
1094 ** x_count() counts the number of non-null arguments.  But there are
1095 ** some twists for testing purposes.
1096 **
1097 ** If the argument to x_count() is 40 then a UTF-8 error is reported
1098 ** on the step function.  If x_count(41) is seen, then a UTF-16 error
1099 ** is reported on the step function.  If the total count is 42, then
1100 ** a UTF-8 error is reported on the finalize function.
1101 */
1102 typedef struct t1CountCtx t1CountCtx;
1103 struct t1CountCtx {
1104   int n;
1105 };
1106 static void t1CountStep(
1107   sqlite3_context *context,
1108   int argc,
1109   sqlite3_value **argv
1110 ){
1111   t1CountCtx *p;
1112   p = sqlite3_aggregate_context(context, sizeof(*p));
1113   if( (argc==0 || SQLITE_NULL!=sqlite3_value_type(argv[0]) ) && p ){
1114     p->n++;
1115   }
1116   if( argc>0 ){
1117     int v = sqlite3_value_int(argv[0]);
1118     if( v==40 ){
1119       sqlite3_result_error(context, "value of 40 handed to x_count", -1);
1120 #ifndef SQLITE_OMIT_UTF16
1121     }else if( v==41 ){
1122       const char zUtf16ErrMsg[] = { 0, 0x61, 0, 0x62, 0, 0x63, 0, 0, 0};
1123       sqlite3_result_error16(context, &zUtf16ErrMsg[1-SQLITE_BIGENDIAN], -1);
1124 #endif
1125     }
1126   }
1127 }
1128 static void t1CountFinalize(sqlite3_context *context){
1129   t1CountCtx *p;
1130   p = sqlite3_aggregate_context(context, sizeof(*p));
1131   if( p ){
1132     if( p->n==42 ){
1133       sqlite3_result_error(context, "x_count totals to 42", -1);
1134     }else{
1135       sqlite3_result_int(context, p ? p->n : 0);
1136     }
1137   }
1138 }
1139 
1140 #ifndef SQLITE_OMIT_DEPRECATED
1141 static void legacyCountStep(
1142   sqlite3_context *context,
1143   int argc,
1144   sqlite3_value **argv
1145 ){
1146   /* no-op */
1147 }
1148 
1149 static void legacyCountFinalize(sqlite3_context *context){
1150   sqlite3_result_int(context, sqlite3_aggregate_count(context));
1151 }
1152 #endif
1153 
1154 /*
1155 ** Usage:  sqlite3_create_aggregate DB
1156 **
1157 ** Call the sqlite3_create_function API on the given database in order
1158 ** to create a function named "x_count".  This function is similar
1159 ** to the built-in count() function, with a few special quirks
1160 ** for testing the sqlite3_result_error() APIs.
1161 **
1162 ** The original motivation for this routine was to be able to call the
1163 ** sqlite3_create_aggregate function while a query is in progress in order
1164 ** to test the SQLITE_MISUSE detection logic.  See misuse.test.
1165 **
1166 ** This routine was later extended to test the use of sqlite3_result_error()
1167 ** within aggregate functions.
1168 **
1169 ** Later: It is now also extended to register the aggregate function
1170 ** "legacy_count()" with the supplied database handle. This is used
1171 ** to test the deprecated sqlite3_aggregate_count() API.
1172 */
1173 static int SQLITE_TCLAPI test_create_aggregate(
1174   void *NotUsed,
1175   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1176   int argc,              /* Number of arguments */
1177   char **argv            /* Text of each argument */
1178 ){
1179   sqlite3 *db;
1180   int rc;
1181   if( argc!=2 ){
1182     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1183        " FILENAME\"", 0);
1184     return TCL_ERROR;
1185   }
1186   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1187   rc = sqlite3_create_function(db, "x_count", 0, SQLITE_UTF8, 0, 0,
1188       t1CountStep,t1CountFinalize);
1189   if( rc==SQLITE_OK ){
1190     rc = sqlite3_create_function(db, "x_count", 1, SQLITE_UTF8, 0, 0,
1191         t1CountStep,t1CountFinalize);
1192   }
1193 #ifndef SQLITE_OMIT_DEPRECATED
1194   if( rc==SQLITE_OK ){
1195     rc = sqlite3_create_function(db, "legacy_count", 0, SQLITE_ANY, 0, 0,
1196         legacyCountStep, legacyCountFinalize
1197     );
1198   }
1199 #endif
1200   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1201   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
1202   return TCL_OK;
1203 }
1204 
1205 
1206 /*
1207 ** Usage:  printf TEXT
1208 **
1209 ** Send output to printf.  Use this rather than puts to merge the output
1210 ** in the correct sequence with debugging printfs inserted into C code.
1211 ** Puts uses a separate buffer and debugging statements will be out of
1212 ** sequence if it is used.
1213 */
1214 static int SQLITE_TCLAPI test_printf(
1215   void *NotUsed,
1216   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1217   int argc,              /* Number of arguments */
1218   char **argv            /* Text of each argument */
1219 ){
1220   if( argc!=2 ){
1221     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1222        " TEXT\"", 0);
1223     return TCL_ERROR;
1224   }
1225   printf("%s\n", argv[1]);
1226   return TCL_OK;
1227 }
1228 
1229 
1230 
1231 /*
1232 ** Usage:  sqlite3_mprintf_int FORMAT INTEGER INTEGER INTEGER
1233 **
1234 ** Call mprintf with three integer arguments
1235 */
1236 static int SQLITE_TCLAPI sqlite3_mprintf_int(
1237   void *NotUsed,
1238   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1239   int argc,              /* Number of arguments */
1240   char **argv            /* Text of each argument */
1241 ){
1242   int a[3], i;
1243   char *z;
1244   if( argc!=5 ){
1245     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1246        " FORMAT INT INT INT\"", 0);
1247     return TCL_ERROR;
1248   }
1249   for(i=2; i<5; i++){
1250     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1251   }
1252   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1253   Tcl_AppendResult(interp, z, 0);
1254   sqlite3_free(z);
1255   return TCL_OK;
1256 }
1257 
1258 /*
1259 ** Usage:  sqlite3_mprintf_int64 FORMAT INTEGER INTEGER INTEGER
1260 **
1261 ** Call mprintf with three 64-bit integer arguments
1262 */
1263 static int SQLITE_TCLAPI sqlite3_mprintf_int64(
1264   void *NotUsed,
1265   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1266   int argc,              /* Number of arguments */
1267   char **argv            /* Text of each argument */
1268 ){
1269   int i;
1270   sqlite_int64 a[3];
1271   char *z;
1272   if( argc!=5 ){
1273     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1274        " FORMAT INT INT INT\"", 0);
1275     return TCL_ERROR;
1276   }
1277   for(i=2; i<5; i++){
1278     if( sqlite3Atoi64(argv[i], &a[i-2], sqlite3Strlen30(argv[i]), SQLITE_UTF8) ){
1279       Tcl_AppendResult(interp, "argument is not a valid 64-bit integer", 0);
1280       return TCL_ERROR;
1281     }
1282   }
1283   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1284   Tcl_AppendResult(interp, z, 0);
1285   sqlite3_free(z);
1286   return TCL_OK;
1287 }
1288 
1289 /*
1290 ** Usage:  sqlite3_mprintf_long FORMAT INTEGER INTEGER INTEGER
1291 **
1292 ** Call mprintf with three long integer arguments.   This might be the
1293 ** same as sqlite3_mprintf_int or sqlite3_mprintf_int64, depending on
1294 ** platform.
1295 */
1296 static int SQLITE_TCLAPI sqlite3_mprintf_long(
1297   void *NotUsed,
1298   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1299   int argc,              /* Number of arguments */
1300   char **argv            /* Text of each argument */
1301 ){
1302   int i;
1303   long int a[3];
1304   int b[3];
1305   char *z;
1306   if( argc!=5 ){
1307     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1308        " FORMAT INT INT INT\"", 0);
1309     return TCL_ERROR;
1310   }
1311   for(i=2; i<5; i++){
1312     if( Tcl_GetInt(interp, argv[i], &b[i-2]) ) return TCL_ERROR;
1313     a[i-2] = (long int)b[i-2];
1314     a[i-2] &= (((u64)1)<<(sizeof(int)*8))-1;
1315   }
1316   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1317   Tcl_AppendResult(interp, z, 0);
1318   sqlite3_free(z);
1319   return TCL_OK;
1320 }
1321 
1322 /*
1323 ** Usage:  sqlite3_mprintf_str FORMAT INTEGER INTEGER STRING
1324 **
1325 ** Call mprintf with two integer arguments and one string argument
1326 */
1327 static int SQLITE_TCLAPI sqlite3_mprintf_str(
1328   void *NotUsed,
1329   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1330   int argc,              /* Number of arguments */
1331   char **argv            /* Text of each argument */
1332 ){
1333   int a[3], i;
1334   char *z;
1335   if( argc<4 || argc>5 ){
1336     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1337        " FORMAT INT INT ?STRING?\"", 0);
1338     return TCL_ERROR;
1339   }
1340   for(i=2; i<4; i++){
1341     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1342   }
1343   z = sqlite3_mprintf(argv[1], a[0], a[1], argc>4 ? argv[4] : NULL);
1344   Tcl_AppendResult(interp, z, 0);
1345   sqlite3_free(z);
1346   return TCL_OK;
1347 }
1348 
1349 /*
1350 ** Usage:  sqlite3_snprintf_str INTEGER FORMAT INTEGER INTEGER STRING
1351 **
1352 ** Call mprintf with two integer arguments and one string argument
1353 */
1354 static int SQLITE_TCLAPI sqlite3_snprintf_str(
1355   void *NotUsed,
1356   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1357   int argc,              /* Number of arguments */
1358   char **argv            /* Text of each argument */
1359 ){
1360   int a[3], i;
1361   int n;
1362   char *z;
1363   if( argc<5 || argc>6 ){
1364     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1365        " INT FORMAT INT INT ?STRING?\"", 0);
1366     return TCL_ERROR;
1367   }
1368   if( Tcl_GetInt(interp, argv[1], &n) ) return TCL_ERROR;
1369   if( n<0 ){
1370     Tcl_AppendResult(interp, "N must be non-negative", 0);
1371     return TCL_ERROR;
1372   }
1373   for(i=3; i<5; i++){
1374     if( Tcl_GetInt(interp, argv[i], &a[i-3]) ) return TCL_ERROR;
1375   }
1376   z = sqlite3_malloc( n+1 );
1377   sqlite3_snprintf(n, z, argv[2], a[0], a[1], argc>4 ? argv[5] : NULL);
1378   Tcl_AppendResult(interp, z, 0);
1379   sqlite3_free(z);
1380   return TCL_OK;
1381 }
1382 
1383 /*
1384 ** Usage:  sqlite3_mprintf_double FORMAT INTEGER INTEGER DOUBLE
1385 **
1386 ** Call mprintf with two integer arguments and one double argument
1387 */
1388 static int SQLITE_TCLAPI sqlite3_mprintf_double(
1389   void *NotUsed,
1390   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1391   int argc,              /* Number of arguments */
1392   char **argv            /* Text of each argument */
1393 ){
1394   int a[3], i;
1395   double r;
1396   char *z;
1397   if( argc!=5 ){
1398     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1399        " FORMAT INT INT DOUBLE\"", 0);
1400     return TCL_ERROR;
1401   }
1402   for(i=2; i<4; i++){
1403     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1404   }
1405   if( Tcl_GetDouble(interp, argv[4], &r) ) return TCL_ERROR;
1406   z = sqlite3_mprintf(argv[1], a[0], a[1], r);
1407   Tcl_AppendResult(interp, z, 0);
1408   sqlite3_free(z);
1409   return TCL_OK;
1410 }
1411 
1412 /*
1413 ** Usage:  sqlite3_mprintf_scaled FORMAT DOUBLE DOUBLE
1414 **
1415 ** Call mprintf with a single double argument which is the product of the
1416 ** two arguments given above.  This is used to generate overflow and underflow
1417 ** doubles to test that they are converted properly.
1418 */
1419 static int SQLITE_TCLAPI sqlite3_mprintf_scaled(
1420   void *NotUsed,
1421   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1422   int argc,              /* Number of arguments */
1423   char **argv            /* Text of each argument */
1424 ){
1425   int i;
1426   double r[2];
1427   char *z;
1428   if( argc!=4 ){
1429     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1430        " FORMAT DOUBLE DOUBLE\"", 0);
1431     return TCL_ERROR;
1432   }
1433   for(i=2; i<4; i++){
1434     if( Tcl_GetDouble(interp, argv[i], &r[i-2]) ) return TCL_ERROR;
1435   }
1436   z = sqlite3_mprintf(argv[1], r[0]*r[1]);
1437   Tcl_AppendResult(interp, z, 0);
1438   sqlite3_free(z);
1439   return TCL_OK;
1440 }
1441 
1442 /*
1443 ** Usage:  sqlite3_mprintf_stronly FORMAT STRING
1444 **
1445 ** Call mprintf with a single double argument which is the product of the
1446 ** two arguments given above.  This is used to generate overflow and underflow
1447 ** doubles to test that they are converted properly.
1448 */
1449 static int SQLITE_TCLAPI sqlite3_mprintf_stronly(
1450   void *NotUsed,
1451   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1452   int argc,              /* Number of arguments */
1453   char **argv            /* Text of each argument */
1454 ){
1455   char *z;
1456   if( argc!=3 ){
1457     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1458        " FORMAT STRING\"", 0);
1459     return TCL_ERROR;
1460   }
1461   z = sqlite3_mprintf(argv[1], argv[2]);
1462   Tcl_AppendResult(interp, z, 0);
1463   sqlite3_free(z);
1464   return TCL_OK;
1465 }
1466 
1467 /*
1468 ** Usage:  sqlite3_mprintf_hexdouble FORMAT HEX
1469 **
1470 ** Call mprintf with a single double argument which is derived from the
1471 ** hexadecimal encoding of an IEEE double.
1472 */
1473 static int SQLITE_TCLAPI sqlite3_mprintf_hexdouble(
1474   void *NotUsed,
1475   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1476   int argc,              /* Number of arguments */
1477   char **argv            /* Text of each argument */
1478 ){
1479   char *z;
1480   double r;
1481   unsigned int x1, x2;
1482   sqlite_uint64 d;
1483   if( argc!=3 ){
1484     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1485        " FORMAT STRING\"", 0);
1486     return TCL_ERROR;
1487   }
1488   if( sscanf(argv[2], "%08x%08x", &x2, &x1)!=2 ){
1489     Tcl_AppendResult(interp, "2nd argument should be 16-characters of hex", 0);
1490     return TCL_ERROR;
1491   }
1492   d = x2;
1493   d = (d<<32) + x1;
1494   memcpy(&r, &d, sizeof(r));
1495   z = sqlite3_mprintf(argv[1], r);
1496   Tcl_AppendResult(interp, z, 0);
1497   sqlite3_free(z);
1498   return TCL_OK;
1499 }
1500 
1501 /*
1502 ** Usage: sqlite3_enable_shared_cache ?BOOLEAN?
1503 **
1504 */
1505 #if !defined(SQLITE_OMIT_SHARED_CACHE)
1506 static int SQLITE_TCLAPI test_enable_shared(
1507   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1508   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1509   int objc,              /* Number of arguments */
1510   Tcl_Obj *CONST objv[]  /* Command arguments */
1511 ){
1512   int rc;
1513   int enable;
1514   int ret = 0;
1515 
1516   if( objc!=2 && objc!=1 ){
1517     Tcl_WrongNumArgs(interp, 1, objv, "?BOOLEAN?");
1518     return TCL_ERROR;
1519   }
1520   ret = sqlite3GlobalConfig.sharedCacheEnabled;
1521 
1522   if( objc==2 ){
1523     if( Tcl_GetBooleanFromObj(interp, objv[1], &enable) ){
1524       return TCL_ERROR;
1525     }
1526     rc = sqlite3_enable_shared_cache(enable);
1527     if( rc!=SQLITE_OK ){
1528       Tcl_SetResult(interp, (char *)sqlite3ErrStr(rc), TCL_STATIC);
1529       return TCL_ERROR;
1530     }
1531   }
1532   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(ret));
1533   return TCL_OK;
1534 }
1535 #endif
1536 
1537 
1538 
1539 /*
1540 ** Usage: sqlite3_extended_result_codes   DB    BOOLEAN
1541 **
1542 */
1543 static int SQLITE_TCLAPI test_extended_result_codes(
1544   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1545   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1546   int objc,              /* Number of arguments */
1547   Tcl_Obj *CONST objv[]  /* Command arguments */
1548 ){
1549   int enable;
1550   sqlite3 *db;
1551 
1552   if( objc!=3 ){
1553     Tcl_WrongNumArgs(interp, 1, objv, "DB BOOLEAN");
1554     return TCL_ERROR;
1555   }
1556   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1557   if( Tcl_GetBooleanFromObj(interp, objv[2], &enable) ) return TCL_ERROR;
1558   sqlite3_extended_result_codes(db, enable);
1559   return TCL_OK;
1560 }
1561 
1562 /*
1563 ** Usage: sqlite3_libversion_number
1564 **
1565 */
1566 static int SQLITE_TCLAPI test_libversion_number(
1567   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1568   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1569   int objc,              /* Number of arguments */
1570   Tcl_Obj *CONST objv[]  /* Command arguments */
1571 ){
1572   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_libversion_number()));
1573   return TCL_OK;
1574 }
1575 
1576 /*
1577 ** Usage: sqlite3_table_column_metadata DB dbname tblname colname
1578 **
1579 */
1580 static int SQLITE_TCLAPI test_table_column_metadata(
1581   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1582   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1583   int objc,              /* Number of arguments */
1584   Tcl_Obj *CONST objv[]  /* Command arguments */
1585 ){
1586   sqlite3 *db;
1587   const char *zDb;
1588   const char *zTbl;
1589   const char *zCol;
1590   int rc;
1591   Tcl_Obj *pRet;
1592 
1593   const char *zDatatype;
1594   const char *zCollseq;
1595   int notnull;
1596   int primarykey;
1597   int autoincrement;
1598 
1599   if( objc!=5 && objc!=4 ){
1600     Tcl_WrongNumArgs(interp, 1, objv, "DB dbname tblname colname");
1601     return TCL_ERROR;
1602   }
1603   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1604   zDb = Tcl_GetString(objv[2]);
1605   zTbl = Tcl_GetString(objv[3]);
1606   zCol = objc==5 ? Tcl_GetString(objv[4]) : 0;
1607 
1608   if( strlen(zDb)==0 ) zDb = 0;
1609 
1610   rc = sqlite3_table_column_metadata(db, zDb, zTbl, zCol,
1611       &zDatatype, &zCollseq, &notnull, &primarykey, &autoincrement);
1612 
1613   if( rc!=SQLITE_OK ){
1614     Tcl_AppendResult(interp, sqlite3_errmsg(db), 0);
1615     return TCL_ERROR;
1616   }
1617 
1618   pRet = Tcl_NewObj();
1619   Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zDatatype, -1));
1620   Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zCollseq, -1));
1621   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(notnull));
1622   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(primarykey));
1623   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(autoincrement));
1624   Tcl_SetObjResult(interp, pRet);
1625 
1626   return TCL_OK;
1627 }
1628 
1629 #ifndef SQLITE_OMIT_INCRBLOB
1630 
1631 static int SQLITE_TCLAPI blobHandleFromObj(
1632   Tcl_Interp *interp,
1633   Tcl_Obj *pObj,
1634   sqlite3_blob **ppBlob
1635 ){
1636   char *z;
1637   int n;
1638 
1639   z = Tcl_GetStringFromObj(pObj, &n);
1640   if( n==0 ){
1641     *ppBlob = 0;
1642   }else{
1643     int notUsed;
1644     Tcl_Channel channel;
1645     ClientData instanceData;
1646 
1647     channel = Tcl_GetChannel(interp, z, &notUsed);
1648     if( !channel ) return TCL_ERROR;
1649 
1650     Tcl_Flush(channel);
1651     Tcl_Seek(channel, 0, SEEK_SET);
1652 
1653     instanceData = Tcl_GetChannelInstanceData(channel);
1654     *ppBlob = *((sqlite3_blob **)instanceData);
1655   }
1656 
1657   return TCL_OK;
1658 }
1659 
1660 static int SQLITE_TCLAPI test_blob_reopen(
1661   ClientData clientData, /* Not used */
1662   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1663   int objc,              /* Number of arguments */
1664   Tcl_Obj *CONST objv[]  /* Command arguments */
1665 ){
1666   Tcl_WideInt iRowid;
1667   sqlite3_blob *pBlob;
1668   int rc;
1669 
1670   if( objc!=3 ){
1671     Tcl_WrongNumArgs(interp, 1, objv, "CHANNEL ROWID");
1672     return TCL_ERROR;
1673   }
1674 
1675   if( blobHandleFromObj(interp, objv[1], &pBlob) ) return TCL_ERROR;
1676   if( Tcl_GetWideIntFromObj(interp, objv[2], &iRowid) ) return TCL_ERROR;
1677 
1678   rc = sqlite3_blob_reopen(pBlob, iRowid);
1679   if( rc!=SQLITE_OK ){
1680     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_VOLATILE);
1681   }
1682 
1683   return (rc==SQLITE_OK ? TCL_OK : TCL_ERROR);
1684 }
1685 
1686 #endif
1687 
1688 /*
1689 ** Usage: sqlite3_create_collation_v2 DB-HANDLE NAME CMP-PROC DEL-PROC
1690 **
1691 **   This Tcl proc is used for testing the experimental
1692 **   sqlite3_create_collation_v2() interface.
1693 */
1694 struct TestCollationX {
1695   Tcl_Interp *interp;
1696   Tcl_Obj *pCmp;
1697   Tcl_Obj *pDel;
1698 };
1699 typedef struct TestCollationX TestCollationX;
1700 static void testCreateCollationDel(void *pCtx){
1701   TestCollationX *p = (TestCollationX *)pCtx;
1702 
1703   int rc = Tcl_EvalObjEx(p->interp, p->pDel, TCL_EVAL_DIRECT|TCL_EVAL_GLOBAL);
1704   if( rc!=TCL_OK ){
1705     Tcl_BackgroundError(p->interp);
1706   }
1707 
1708   Tcl_DecrRefCount(p->pCmp);
1709   Tcl_DecrRefCount(p->pDel);
1710   sqlite3_free((void *)p);
1711 }
1712 static int testCreateCollationCmp(
1713   void *pCtx,
1714   int nLeft,
1715   const void *zLeft,
1716   int nRight,
1717   const void *zRight
1718 ){
1719   TestCollationX *p = (TestCollationX *)pCtx;
1720   Tcl_Obj *pScript = Tcl_DuplicateObj(p->pCmp);
1721   int iRes = 0;
1722 
1723   Tcl_IncrRefCount(pScript);
1724   Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj((char *)zLeft, nLeft));
1725   Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj((char *)zRight,nRight));
1726 
1727   if( TCL_OK!=Tcl_EvalObjEx(p->interp, pScript, TCL_EVAL_DIRECT|TCL_EVAL_GLOBAL)
1728    || TCL_OK!=Tcl_GetIntFromObj(p->interp, Tcl_GetObjResult(p->interp), &iRes)
1729   ){
1730     Tcl_BackgroundError(p->interp);
1731   }
1732   Tcl_DecrRefCount(pScript);
1733 
1734   return iRes;
1735 }
1736 static int SQLITE_TCLAPI test_create_collation_v2(
1737   ClientData clientData, /* Not used */
1738   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1739   int objc,              /* Number of arguments */
1740   Tcl_Obj *CONST objv[]  /* Command arguments */
1741 ){
1742   TestCollationX *p;
1743   sqlite3 *db;
1744   int rc;
1745 
1746   if( objc!=5 ){
1747     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE NAME CMP-PROC DEL-PROC");
1748     return TCL_ERROR;
1749   }
1750   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1751 
1752   p = (TestCollationX *)sqlite3_malloc(sizeof(TestCollationX));
1753   p->pCmp = objv[3];
1754   p->pDel = objv[4];
1755   p->interp = interp;
1756   Tcl_IncrRefCount(p->pCmp);
1757   Tcl_IncrRefCount(p->pDel);
1758 
1759   rc = sqlite3_create_collation_v2(db, Tcl_GetString(objv[2]), 16,
1760       (void *)p, testCreateCollationCmp, testCreateCollationDel
1761   );
1762   if( rc!=SQLITE_MISUSE ){
1763     Tcl_AppendResult(interp, "sqlite3_create_collate_v2() failed to detect "
1764       "an invalid encoding", (char*)0);
1765     return TCL_ERROR;
1766   }
1767   rc = sqlite3_create_collation_v2(db, Tcl_GetString(objv[2]), SQLITE_UTF8,
1768       (void *)p, testCreateCollationCmp, testCreateCollationDel
1769   );
1770   return TCL_OK;
1771 }
1772 
1773 /*
1774 ** USAGE: sqlite3_create_function_v2 DB NAME NARG ENC ?SWITCHES?
1775 **
1776 ** Available switches are:
1777 **
1778 **   -func    SCRIPT
1779 **   -step    SCRIPT
1780 **   -final   SCRIPT
1781 **   -destroy SCRIPT
1782 */
1783 typedef struct CreateFunctionV2 CreateFunctionV2;
1784 struct CreateFunctionV2 {
1785   Tcl_Interp *interp;
1786   Tcl_Obj *pFunc;                 /* Script for function invocation */
1787   Tcl_Obj *pStep;                 /* Script for agg. step invocation */
1788   Tcl_Obj *pFinal;                /* Script for agg. finalization invocation */
1789   Tcl_Obj *pDestroy;              /* Destructor script */
1790 };
1791 static void cf2Func(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
1792 }
1793 static void cf2Step(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
1794 }
1795 static void cf2Final(sqlite3_context *ctx){
1796 }
1797 static void cf2Destroy(void *pUser){
1798   CreateFunctionV2 *p = (CreateFunctionV2 *)pUser;
1799 
1800   if( p->interp && p->pDestroy ){
1801     int rc = Tcl_EvalObjEx(p->interp, p->pDestroy, 0);
1802     if( rc!=TCL_OK ) Tcl_BackgroundError(p->interp);
1803   }
1804 
1805   if( p->pFunc ) Tcl_DecrRefCount(p->pFunc);
1806   if( p->pStep ) Tcl_DecrRefCount(p->pStep);
1807   if( p->pFinal ) Tcl_DecrRefCount(p->pFinal);
1808   if( p->pDestroy ) Tcl_DecrRefCount(p->pDestroy);
1809   sqlite3_free(p);
1810 }
1811 static int SQLITE_TCLAPI test_create_function_v2(
1812   ClientData clientData,          /* Not used */
1813   Tcl_Interp *interp,             /* The invoking TCL interpreter */
1814   int objc,                       /* Number of arguments */
1815   Tcl_Obj *CONST objv[]           /* Command arguments */
1816 ){
1817   sqlite3 *db;
1818   const char *zFunc;
1819   int nArg;
1820   int enc;
1821   CreateFunctionV2 *p;
1822   int i;
1823   int rc;
1824 
1825   struct EncTable {
1826     const char *zEnc;
1827     int enc;
1828   } aEnc[] = {
1829     {"utf8",    SQLITE_UTF8 },
1830     {"utf16",   SQLITE_UTF16 },
1831     {"utf16le", SQLITE_UTF16LE },
1832     {"utf16be", SQLITE_UTF16BE },
1833     {"any",     SQLITE_ANY },
1834     {"0", 0 }
1835   };
1836 
1837   if( objc<5 || (objc%2)==0 ){
1838     Tcl_WrongNumArgs(interp, 1, objv, "DB NAME NARG ENC SWITCHES...");
1839     return TCL_ERROR;
1840   }
1841 
1842   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1843   zFunc = Tcl_GetString(objv[2]);
1844   if( Tcl_GetIntFromObj(interp, objv[3], &nArg) ) return TCL_ERROR;
1845   if( Tcl_GetIndexFromObjStruct(interp, objv[4], aEnc, sizeof(aEnc[0]),
1846           "encoding", 0, &enc)
1847   ){
1848     return TCL_ERROR;
1849   }
1850   enc = aEnc[enc].enc;
1851 
1852   p = sqlite3_malloc(sizeof(CreateFunctionV2));
1853   assert( p );
1854   memset(p, 0, sizeof(CreateFunctionV2));
1855   p->interp = interp;
1856 
1857   for(i=5; i<objc; i+=2){
1858     int iSwitch;
1859     const char *azSwitch[] = {"-func", "-step", "-final", "-destroy", 0};
1860     if( Tcl_GetIndexFromObj(interp, objv[i], azSwitch, "switch", 0, &iSwitch) ){
1861       sqlite3_free(p);
1862       return TCL_ERROR;
1863     }
1864 
1865     switch( iSwitch ){
1866       case 0: p->pFunc = objv[i+1];      break;
1867       case 1: p->pStep = objv[i+1];      break;
1868       case 2: p->pFinal = objv[i+1];     break;
1869       case 3: p->pDestroy = objv[i+1];   break;
1870     }
1871   }
1872   if( p->pFunc ) p->pFunc = Tcl_DuplicateObj(p->pFunc);
1873   if( p->pStep ) p->pStep = Tcl_DuplicateObj(p->pStep);
1874   if( p->pFinal ) p->pFinal = Tcl_DuplicateObj(p->pFinal);
1875   if( p->pDestroy ) p->pDestroy = Tcl_DuplicateObj(p->pDestroy);
1876 
1877   if( p->pFunc ) Tcl_IncrRefCount(p->pFunc);
1878   if( p->pStep ) Tcl_IncrRefCount(p->pStep);
1879   if( p->pFinal ) Tcl_IncrRefCount(p->pFinal);
1880   if( p->pDestroy ) Tcl_IncrRefCount(p->pDestroy);
1881 
1882   rc = sqlite3_create_function_v2(db, zFunc, nArg, enc, (void *)p,
1883       (p->pFunc ? cf2Func : 0),
1884       (p->pStep ? cf2Step : 0),
1885       (p->pFinal ? cf2Final : 0),
1886       cf2Destroy
1887   );
1888   if( rc!=SQLITE_OK ){
1889     Tcl_ResetResult(interp);
1890     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
1891     return TCL_ERROR;
1892   }
1893   return TCL_OK;
1894 }
1895 
1896 /*
1897 ** Usage: sqlite3_load_extension DB-HANDLE FILE ?PROC?
1898 */
1899 static int SQLITE_TCLAPI test_load_extension(
1900   ClientData clientData, /* Not used */
1901   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1902   int objc,              /* Number of arguments */
1903   Tcl_Obj *CONST objv[]  /* Command arguments */
1904 ){
1905   Tcl_CmdInfo cmdInfo;
1906   sqlite3 *db;
1907   int rc;
1908   char *zDb;
1909   char *zFile;
1910   char *zProc = 0;
1911   char *zErr = 0;
1912 
1913   if( objc!=4 && objc!=3 ){
1914     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE FILE ?PROC?");
1915     return TCL_ERROR;
1916   }
1917   zDb = Tcl_GetString(objv[1]);
1918   zFile = Tcl_GetString(objv[2]);
1919   if( objc==4 ){
1920     zProc = Tcl_GetString(objv[3]);
1921   }
1922 
1923   /* Extract the C database handle from the Tcl command name */
1924   if( !Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
1925     Tcl_AppendResult(interp, "command not found: ", zDb, (char*)0);
1926     return TCL_ERROR;
1927   }
1928   db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
1929   assert(db);
1930 
1931   /* Call the underlying C function. If an error occurs, set rc to
1932   ** TCL_ERROR and load any error string into the interpreter. If no
1933   ** error occurs, set rc to TCL_OK.
1934   */
1935 #ifdef SQLITE_OMIT_LOAD_EXTENSION
1936   rc = SQLITE_ERROR;
1937   zErr = sqlite3_mprintf("this build omits sqlite3_load_extension()");
1938   (void)zProc;
1939   (void)zFile;
1940 #else
1941   rc = sqlite3_load_extension(db, zFile, zProc, &zErr);
1942 #endif
1943   if( rc!=SQLITE_OK ){
1944     Tcl_SetResult(interp, zErr ? zErr : "", TCL_VOLATILE);
1945     rc = TCL_ERROR;
1946   }else{
1947     rc = TCL_OK;
1948   }
1949   sqlite3_free(zErr);
1950 
1951   return rc;
1952 }
1953 
1954 /*
1955 ** Usage: sqlite3_enable_load_extension DB-HANDLE ONOFF
1956 */
1957 static int SQLITE_TCLAPI test_enable_load(
1958   ClientData clientData, /* Not used */
1959   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1960   int objc,              /* Number of arguments */
1961   Tcl_Obj *CONST objv[]  /* Command arguments */
1962 ){
1963   Tcl_CmdInfo cmdInfo;
1964   sqlite3 *db;
1965   char *zDb;
1966   int onoff;
1967 
1968   if( objc!=3 ){
1969     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE ONOFF");
1970     return TCL_ERROR;
1971   }
1972   zDb = Tcl_GetString(objv[1]);
1973 
1974   /* Extract the C database handle from the Tcl command name */
1975   if( !Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
1976     Tcl_AppendResult(interp, "command not found: ", zDb, (char*)0);
1977     return TCL_ERROR;
1978   }
1979   db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
1980   assert(db);
1981 
1982   /* Get the onoff parameter */
1983   if( Tcl_GetBooleanFromObj(interp, objv[2], &onoff) ){
1984     return TCL_ERROR;
1985   }
1986 
1987 #ifdef SQLITE_OMIT_LOAD_EXTENSION
1988   Tcl_AppendResult(interp, "this build omits sqlite3_load_extension()");
1989   return TCL_ERROR;
1990 #else
1991   sqlite3_enable_load_extension(db, onoff);
1992   return TCL_OK;
1993 #endif
1994 }
1995 
1996 /*
1997 ** Usage:  sqlite_abort
1998 **
1999 ** Shutdown the process immediately.  This is not a clean shutdown.
2000 ** This command is used to test the recoverability of a database in
2001 ** the event of a program crash.
2002 */
2003 static int SQLITE_TCLAPI sqlite_abort(
2004   void *NotUsed,
2005   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2006   int argc,              /* Number of arguments */
2007   char **argv            /* Text of each argument */
2008 ){
2009 #if defined(_MSC_VER)
2010   /* We do this, otherwise the test will halt with a popup message
2011    * that we have to click away before the test will continue.
2012    */
2013   _set_abort_behavior( 0, _CALL_REPORTFAULT );
2014 #endif
2015   exit(255);
2016   assert( interp==0 );   /* This will always fail */
2017   return TCL_OK;
2018 }
2019 
2020 /*
2021 ** The following routine is a user-defined SQL function whose purpose
2022 ** is to test the sqlite_set_result() API.
2023 */
2024 static void testFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
2025   while( argc>=2 ){
2026     const char *zArg0 = (char*)sqlite3_value_text(argv[0]);
2027     if( zArg0 ){
2028       if( 0==sqlite3StrICmp(zArg0, "int") ){
2029         sqlite3_result_int(context, sqlite3_value_int(argv[1]));
2030       }else if( sqlite3StrICmp(zArg0,"int64")==0 ){
2031         sqlite3_result_int64(context, sqlite3_value_int64(argv[1]));
2032       }else if( sqlite3StrICmp(zArg0,"string")==0 ){
2033         sqlite3_result_text(context, (char*)sqlite3_value_text(argv[1]), -1,
2034             SQLITE_TRANSIENT);
2035       }else if( sqlite3StrICmp(zArg0,"double")==0 ){
2036         sqlite3_result_double(context, sqlite3_value_double(argv[1]));
2037       }else if( sqlite3StrICmp(zArg0,"null")==0 ){
2038         sqlite3_result_null(context);
2039       }else if( sqlite3StrICmp(zArg0,"value")==0 ){
2040         sqlite3_result_value(context, argv[sqlite3_value_int(argv[1])]);
2041       }else{
2042         goto error_out;
2043       }
2044     }else{
2045       goto error_out;
2046     }
2047     argc -= 2;
2048     argv += 2;
2049   }
2050   return;
2051 
2052 error_out:
2053   sqlite3_result_error(context,"first argument should be one of: "
2054       "int int64 string double null value", -1);
2055 }
2056 
2057 /*
2058 ** Usage:   sqlite_register_test_function  DB  NAME
2059 **
2060 ** Register the test SQL function on the database DB under the name NAME.
2061 */
2062 static int SQLITE_TCLAPI test_register_func(
2063   void *NotUsed,
2064   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2065   int argc,              /* Number of arguments */
2066   char **argv            /* Text of each argument */
2067 ){
2068   sqlite3 *db;
2069   int rc;
2070   if( argc!=3 ){
2071     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2072        " DB FUNCTION-NAME", 0);
2073     return TCL_ERROR;
2074   }
2075   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
2076   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0,
2077       testFunc, 0, 0);
2078   if( rc!=0 ){
2079     Tcl_AppendResult(interp, sqlite3ErrStr(rc), 0);
2080     return TCL_ERROR;
2081   }
2082   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2083   return TCL_OK;
2084 }
2085 
2086 /*
2087 ** Usage:  sqlite3_finalize  STMT
2088 **
2089 ** Finalize a statement handle.
2090 */
2091 static int SQLITE_TCLAPI test_finalize(
2092   void * clientData,
2093   Tcl_Interp *interp,
2094   int objc,
2095   Tcl_Obj *CONST objv[]
2096 ){
2097   sqlite3_stmt *pStmt;
2098   int rc;
2099   sqlite3 *db = 0;
2100 
2101   if( objc!=2 ){
2102     Tcl_AppendResult(interp, "wrong # args: should be \"",
2103         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2104     return TCL_ERROR;
2105   }
2106 
2107   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2108 
2109   if( pStmt ){
2110     db = StmtToDb(pStmt);
2111   }
2112   rc = sqlite3_finalize(pStmt);
2113   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2114   if( db && sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2115   return TCL_OK;
2116 }
2117 
2118 /*
2119 ** Usage:  sqlite3_stmt_status  STMT  CODE  RESETFLAG
2120 **
2121 ** Get the value of a status counter from a statement.
2122 */
2123 static int SQLITE_TCLAPI test_stmt_status(
2124   void * clientData,
2125   Tcl_Interp *interp,
2126   int objc,
2127   Tcl_Obj *CONST objv[]
2128 ){
2129   int iValue;
2130   int i, op = 0, resetFlag;
2131   const char *zOpName;
2132   sqlite3_stmt *pStmt;
2133 
2134   static const struct {
2135     const char *zName;
2136     int op;
2137   } aOp[] = {
2138     { "SQLITE_STMTSTATUS_FULLSCAN_STEP",   SQLITE_STMTSTATUS_FULLSCAN_STEP   },
2139     { "SQLITE_STMTSTATUS_SORT",            SQLITE_STMTSTATUS_SORT            },
2140     { "SQLITE_STMTSTATUS_AUTOINDEX",       SQLITE_STMTSTATUS_AUTOINDEX       },
2141     { "SQLITE_STMTSTATUS_VM_STEP",         SQLITE_STMTSTATUS_VM_STEP         },
2142     { "SQLITE_STMTSTATUS_REPREPARE",       SQLITE_STMTSTATUS_REPREPARE       },
2143     { "SQLITE_STMTSTATUS_RUN",             SQLITE_STMTSTATUS_RUN             },
2144     { "SQLITE_STMTSTATUS_MEMUSED",         SQLITE_STMTSTATUS_MEMUSED         },
2145   };
2146   if( objc!=4 ){
2147     Tcl_WrongNumArgs(interp, 1, objv, "STMT PARAMETER RESETFLAG");
2148     return TCL_ERROR;
2149   }
2150   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2151   zOpName = Tcl_GetString(objv[2]);
2152   for(i=0; i<ArraySize(aOp); i++){
2153     if( strcmp(aOp[i].zName, zOpName)==0 ){
2154       op = aOp[i].op;
2155       break;
2156     }
2157   }
2158   if( i>=ArraySize(aOp) ){
2159     if( Tcl_GetIntFromObj(interp, objv[2], &op) ) return TCL_ERROR;
2160   }
2161   if( Tcl_GetBooleanFromObj(interp, objv[3], &resetFlag) ) return TCL_ERROR;
2162   iValue = sqlite3_stmt_status(pStmt, op, resetFlag);
2163   Tcl_SetObjResult(interp, Tcl_NewIntObj(iValue));
2164   return TCL_OK;
2165 }
2166 
2167 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
2168 /*
2169 ** Usage:  sqlite3_stmt_scanstatus STMT IDX
2170 */
2171 static int SQLITE_TCLAPI test_stmt_scanstatus(
2172   void * clientData,
2173   Tcl_Interp *interp,
2174   int objc,
2175   Tcl_Obj *CONST objv[]
2176 ){
2177   sqlite3_stmt *pStmt;            /* First argument */
2178   int idx;                        /* Second argument */
2179 
2180   const char *zName;
2181   const char *zExplain;
2182   sqlite3_int64 nLoop;
2183   sqlite3_int64 nVisit;
2184   double rEst;
2185   int res;
2186 
2187   if( objc!=3 ){
2188     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX");
2189     return TCL_ERROR;
2190   }
2191   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2192   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2193 
2194   res = sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NLOOP, (void*)&nLoop);
2195   if( res==0 ){
2196     Tcl_Obj *pRet = Tcl_NewObj();
2197     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nLoop", -1));
2198     Tcl_ListObjAppendElement(0, pRet, Tcl_NewWideIntObj(nLoop));
2199     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NVISIT, (void*)&nVisit);
2200     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nVisit", -1));
2201     Tcl_ListObjAppendElement(0, pRet, Tcl_NewWideIntObj(nVisit));
2202     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_EST, (void*)&rEst);
2203     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nEst", -1));
2204     Tcl_ListObjAppendElement(0, pRet, Tcl_NewDoubleObj(rEst));
2205     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NAME, (void*)&zName);
2206     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("zName", -1));
2207     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zName, -1));
2208     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_EXPLAIN, (void*)&zExplain);
2209     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("zExplain", -1));
2210     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zExplain, -1));
2211     Tcl_SetObjResult(interp, pRet);
2212   }else{
2213     Tcl_ResetResult(interp);
2214   }
2215   return TCL_OK;
2216 }
2217 
2218 /*
2219 ** Usage:  sqlite3_stmt_scanstatus_reset  STMT
2220 */
2221 static int SQLITE_TCLAPI test_stmt_scanstatus_reset(
2222   void * clientData,
2223   Tcl_Interp *interp,
2224   int objc,
2225   Tcl_Obj *CONST objv[]
2226 ){
2227   sqlite3_stmt *pStmt;            /* First argument */
2228   if( objc!=2 ){
2229     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
2230     return TCL_ERROR;
2231   }
2232   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2233   sqlite3_stmt_scanstatus_reset(pStmt);
2234   return TCL_OK;
2235 }
2236 #endif
2237 
2238 #ifdef SQLITE_ENABLE_SQLLOG
2239 /*
2240 ** Usage:  sqlite3_config_sqllog
2241 **
2242 ** Zero the SQLITE_CONFIG_SQLLOG configuration
2243 */
2244 static int SQLITE_TCLAPI test_config_sqllog(
2245   void * clientData,
2246   Tcl_Interp *interp,
2247   int objc,
2248   Tcl_Obj *CONST objv[]
2249 ){
2250   if( objc!=1 ){
2251     Tcl_WrongNumArgs(interp, 1, objv, "");
2252     return TCL_ERROR;
2253   }
2254   sqlite3_config(SQLITE_CONFIG_SQLLOG, 0, 0);
2255   return TCL_OK;
2256 }
2257 #endif
2258 
2259 /*
2260 ** Usage:  sqlite3_config_sorterref
2261 **
2262 ** Set the SQLITE_CONFIG_SORTERREF_SIZE configuration option
2263 */
2264 static int SQLITE_TCLAPI test_config_sorterref(
2265   void * clientData,
2266   Tcl_Interp *interp,
2267   int objc,
2268   Tcl_Obj *CONST objv[]
2269 ){
2270   int iVal;
2271   if( objc!=2 ){
2272     Tcl_WrongNumArgs(interp, 1, objv, "NBYTE");
2273     return TCL_ERROR;
2274   }
2275   if( Tcl_GetIntFromObj(interp, objv[1], &iVal) ) return TCL_ERROR;
2276   sqlite3_config(SQLITE_CONFIG_SORTERREF_SIZE, iVal);
2277   return TCL_OK;
2278 }
2279 
2280 /*
2281 ** Usage: vfs_current_time_int64
2282 **
2283 ** Return the value returned by the default VFS's xCurrentTimeInt64 method.
2284 */
2285 static int SQLITE_TCLAPI vfsCurrentTimeInt64(
2286   void * clientData,
2287   Tcl_Interp *interp,
2288   int objc,
2289   Tcl_Obj *CONST objv[]
2290 ){
2291   i64 t;
2292   sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
2293   if( objc!=1 ){
2294     Tcl_WrongNumArgs(interp, 1, objv, "");
2295     return TCL_ERROR;
2296   }
2297   pVfs->xCurrentTimeInt64(pVfs, &t);
2298   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(t));
2299   return TCL_OK;
2300 }
2301 
2302 #ifdef SQLITE_ENABLE_SNAPSHOT
2303 /*
2304 ** Usage: sqlite3_snapshot_get DB DBNAME
2305 */
2306 static int SQLITE_TCLAPI test_snapshot_get(
2307   void * clientData,
2308   Tcl_Interp *interp,
2309   int objc,
2310   Tcl_Obj *CONST objv[]
2311 ){
2312   int rc;
2313   sqlite3 *db;
2314   char *zName;
2315   sqlite3_snapshot *pSnapshot = 0;
2316 
2317   if( objc!=3 ){
2318     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2319     return TCL_ERROR;
2320   }
2321   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2322   zName = Tcl_GetString(objv[2]);
2323 
2324   rc = sqlite3_snapshot_get(db, zName, &pSnapshot);
2325   if( rc!=SQLITE_OK ){
2326     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2327     return TCL_ERROR;
2328   }else{
2329     char zBuf[100];
2330     if( sqlite3TestMakePointerStr(interp, zBuf, pSnapshot) ) return TCL_ERROR;
2331     Tcl_SetObjResult(interp, Tcl_NewStringObj(zBuf, -1));
2332   }
2333   return TCL_OK;
2334 }
2335 #endif /* SQLITE_ENABLE_SNAPSHOT */
2336 
2337 #ifdef SQLITE_ENABLE_SNAPSHOT
2338 /*
2339 ** Usage: sqlite3_snapshot_recover DB DBNAME
2340 */
2341 static int SQLITE_TCLAPI test_snapshot_recover(
2342   void * clientData,
2343   Tcl_Interp *interp,
2344   int objc,
2345   Tcl_Obj *CONST objv[]
2346 ){
2347   int rc;
2348   sqlite3 *db;
2349   char *zName;
2350 
2351   if( objc!=3 ){
2352     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2353     return TCL_ERROR;
2354   }
2355   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2356   zName = Tcl_GetString(objv[2]);
2357 
2358   rc = sqlite3_snapshot_recover(db, zName);
2359   if( rc!=SQLITE_OK ){
2360     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2361     return TCL_ERROR;
2362   }else{
2363     Tcl_ResetResult(interp);
2364   }
2365   return TCL_OK;
2366 }
2367 #endif /* SQLITE_ENABLE_SNAPSHOT */
2368 
2369 #ifdef SQLITE_ENABLE_SNAPSHOT
2370 /*
2371 ** Usage: sqlite3_snapshot_open DB DBNAME SNAPSHOT
2372 */
2373 static int SQLITE_TCLAPI test_snapshot_open(
2374   void * clientData,
2375   Tcl_Interp *interp,
2376   int objc,
2377   Tcl_Obj *CONST objv[]
2378 ){
2379   int rc;
2380   sqlite3 *db;
2381   char *zName;
2382   sqlite3_snapshot *pSnapshot;
2383 
2384   if( objc!=4 ){
2385     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SNAPSHOT");
2386     return TCL_ERROR;
2387   }
2388   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2389   zName = Tcl_GetString(objv[2]);
2390   pSnapshot = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[3]));
2391 
2392   rc = sqlite3_snapshot_open(db, zName, pSnapshot);
2393   if( rc!=SQLITE_OK ){
2394     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2395     return TCL_ERROR;
2396   }else{
2397     Tcl_ResetResult(interp);
2398   }
2399   return TCL_OK;
2400 }
2401 #endif /* SQLITE_ENABLE_SNAPSHOT */
2402 
2403 #ifdef SQLITE_ENABLE_SNAPSHOT
2404 /*
2405 ** Usage: sqlite3_snapshot_free SNAPSHOT
2406 */
2407 static int SQLITE_TCLAPI test_snapshot_free(
2408   void * clientData,
2409   Tcl_Interp *interp,
2410   int objc,
2411   Tcl_Obj *CONST objv[]
2412 ){
2413   sqlite3_snapshot *pSnapshot;
2414   if( objc!=2 ){
2415     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT");
2416     return TCL_ERROR;
2417   }
2418   pSnapshot = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[1]));
2419   sqlite3_snapshot_free(pSnapshot);
2420   return TCL_OK;
2421 }
2422 #endif /* SQLITE_ENABLE_SNAPSHOT */
2423 
2424 #ifdef SQLITE_ENABLE_SNAPSHOT
2425 /*
2426 ** Usage: sqlite3_snapshot_cmp SNAPSHOT1 SNAPSHOT2
2427 */
2428 static int SQLITE_TCLAPI test_snapshot_cmp(
2429   void * clientData,
2430   Tcl_Interp *interp,
2431   int objc,
2432   Tcl_Obj *CONST objv[]
2433 ){
2434   int res;
2435   sqlite3_snapshot *p1;
2436   sqlite3_snapshot *p2;
2437   if( objc!=3 ){
2438     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT1 SNAPSHOT2");
2439     return TCL_ERROR;
2440   }
2441   p1 = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[1]));
2442   p2 = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[2]));
2443   res = sqlite3_snapshot_cmp(p1, p2);
2444   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
2445   return TCL_OK;
2446 }
2447 #endif /* SQLITE_ENABLE_SNAPSHOT */
2448 
2449 #ifdef SQLITE_ENABLE_SNAPSHOT
2450 /*
2451 ** Usage: sqlite3_snapshot_get_blob DB DBNAME
2452 */
2453 static int SQLITE_TCLAPI test_snapshot_get_blob(
2454   void * clientData,
2455   Tcl_Interp *interp,
2456   int objc,
2457   Tcl_Obj *CONST objv[]
2458 ){
2459   int rc;
2460   sqlite3 *db;
2461   char *zName;
2462   sqlite3_snapshot *pSnapshot = 0;
2463 
2464   if( objc!=3 ){
2465     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2466     return TCL_ERROR;
2467   }
2468   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2469   zName = Tcl_GetString(objv[2]);
2470 
2471   rc = sqlite3_snapshot_get(db, zName, &pSnapshot);
2472   if( rc!=SQLITE_OK ){
2473     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2474     return TCL_ERROR;
2475   }else{
2476     Tcl_SetObjResult(interp,
2477         Tcl_NewByteArrayObj((unsigned char*)pSnapshot, sizeof(sqlite3_snapshot))
2478     );
2479     sqlite3_snapshot_free(pSnapshot);
2480   }
2481   return TCL_OK;
2482 }
2483 #endif /* SQLITE_ENABLE_SNAPSHOT */
2484 
2485 #ifdef SQLITE_ENABLE_SNAPSHOT
2486   /*
2487   ** Usage: sqlite3_snapshot_open_blob DB DBNAME SNAPSHOT
2488 */
2489 static int SQLITE_TCLAPI test_snapshot_open_blob(
2490   void * clientData,
2491   Tcl_Interp *interp,
2492   int objc,
2493   Tcl_Obj *CONST objv[]
2494 ){
2495   int rc;
2496   sqlite3 *db;
2497   char *zName;
2498   unsigned char *pBlob;
2499   int nBlob;
2500 
2501   if( objc!=4 ){
2502     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SNAPSHOT");
2503     return TCL_ERROR;
2504   }
2505   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2506   zName = Tcl_GetString(objv[2]);
2507   pBlob = Tcl_GetByteArrayFromObj(objv[3], &nBlob);
2508   if( nBlob!=sizeof(sqlite3_snapshot) ){
2509     Tcl_AppendResult(interp, "bad SNAPSHOT", 0);
2510     return TCL_ERROR;
2511   }
2512   rc = sqlite3_snapshot_open(db, zName, (sqlite3_snapshot*)pBlob);
2513   if( rc!=SQLITE_OK ){
2514     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2515     return TCL_ERROR;
2516   }
2517   return TCL_OK;
2518 }
2519 #endif /* SQLITE_ENABLE_SNAPSHOT */
2520 
2521 #ifdef SQLITE_ENABLE_SNAPSHOT
2522 /*
2523 ** Usage: sqlite3_snapshot_cmp_blob SNAPSHOT1 SNAPSHOT2
2524 */
2525 static int SQLITE_TCLAPI test_snapshot_cmp_blob(
2526   void * clientData,
2527   Tcl_Interp *interp,
2528   int objc,
2529   Tcl_Obj *CONST objv[]
2530 ){
2531   int res;
2532   unsigned char *p1;
2533   unsigned char *p2;
2534   int n1;
2535   int n2;
2536 
2537   if( objc!=3 ){
2538     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT1 SNAPSHOT2");
2539     return TCL_ERROR;
2540   }
2541 
2542   p1 = Tcl_GetByteArrayFromObj(objv[1], &n1);
2543   p2 = Tcl_GetByteArrayFromObj(objv[2], &n2);
2544 
2545   if( n1!=sizeof(sqlite3_snapshot) || n1!=n2 ){
2546     Tcl_AppendResult(interp, "bad SNAPSHOT", 0);
2547     return TCL_ERROR;
2548   }
2549 
2550   res = sqlite3_snapshot_cmp((sqlite3_snapshot*)p1, (sqlite3_snapshot*)p2);
2551   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
2552   return TCL_OK;
2553 }
2554 #endif /* SQLITE_ENABLE_SNAPSHOT */
2555 
2556 /*
2557 ** Usage: sqlite3_delete_database FILENAME
2558 */
2559 int sqlite3_delete_database(const char*);   /* in test_delete.c */
2560 static int SQLITE_TCLAPI test_delete_database(
2561   void * clientData,
2562   Tcl_Interp *interp,
2563   int objc,
2564   Tcl_Obj *CONST objv[]
2565 ){
2566   int rc;
2567   const char *zFile;
2568   if( objc!=2 ){
2569     Tcl_WrongNumArgs(interp, 1, objv, "FILE");
2570     return TCL_ERROR;
2571   }
2572   zFile = (const char*)Tcl_GetString(objv[1]);
2573   rc = sqlite3_delete_database(zFile);
2574 
2575   Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2576   return TCL_OK;
2577 }
2578 
2579 /*
2580 ** Usage: atomic_batch_write PATH
2581 */
2582 static int SQLITE_TCLAPI test_atomic_batch_write(
2583   void * clientData,
2584   Tcl_Interp *interp,
2585   int objc,
2586   Tcl_Obj *CONST objv[]
2587 ){
2588   char *zFile = 0;                /* Path to file to test */
2589   sqlite3 *db = 0;                /* Database handle */
2590   sqlite3_file *pFd = 0;          /* SQLite fd open on zFile */
2591   int bRes = 0;                   /* Integer result of this command */
2592   int dc = 0;                     /* Device-characteristics mask */
2593   int rc;                         /* sqlite3_open() return code */
2594 
2595   if( objc!=2 ){
2596     Tcl_WrongNumArgs(interp, 1, objv, "PATH");
2597     return TCL_ERROR;
2598   }
2599   zFile = Tcl_GetString(objv[1]);
2600 
2601   rc = sqlite3_open(zFile, &db);
2602   if( rc!=SQLITE_OK ){
2603     Tcl_AppendResult(interp, sqlite3_errmsg(db), 0);
2604     sqlite3_close(db);
2605     return TCL_ERROR;
2606   }
2607 
2608   rc = sqlite3_file_control(db, "main", SQLITE_FCNTL_FILE_POINTER, (void*)&pFd);
2609   dc = pFd->pMethods->xDeviceCharacteristics(pFd);
2610   if( dc & SQLITE_IOCAP_BATCH_ATOMIC ){
2611     bRes = 1;
2612   }
2613 
2614   Tcl_SetObjResult(interp, Tcl_NewIntObj(bRes));
2615   sqlite3_close(db);
2616   return TCL_OK;
2617 }
2618 
2619 /*
2620 ** Usage:  sqlite3_next_stmt  DB  STMT
2621 **
2622 ** Return the next statment in sequence after STMT.
2623 */
2624 static int SQLITE_TCLAPI test_next_stmt(
2625   void * clientData,
2626   Tcl_Interp *interp,
2627   int objc,
2628   Tcl_Obj *CONST objv[]
2629 ){
2630   sqlite3_stmt *pStmt;
2631   sqlite3 *db = 0;
2632   char zBuf[50];
2633 
2634   if( objc!=3 ){
2635     Tcl_AppendResult(interp, "wrong # args: should be \"",
2636         Tcl_GetStringFromObj(objv[0], 0), " DB STMT", 0);
2637     return TCL_ERROR;
2638   }
2639 
2640   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2641   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt) ) return TCL_ERROR;
2642   pStmt = sqlite3_next_stmt(db, pStmt);
2643   if( pStmt ){
2644     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
2645     Tcl_AppendResult(interp, zBuf, 0);
2646   }
2647   return TCL_OK;
2648 }
2649 
2650 /*
2651 ** Usage:  sqlite3_stmt_readonly  STMT
2652 **
2653 ** Return true if STMT is a NULL pointer or a pointer to a statement
2654 ** that is guaranteed to leave the database unmodified.
2655 */
2656 static int SQLITE_TCLAPI test_stmt_readonly(
2657   void * clientData,
2658   Tcl_Interp *interp,
2659   int objc,
2660   Tcl_Obj *CONST objv[]
2661 ){
2662   sqlite3_stmt *pStmt;
2663   int rc;
2664 
2665   if( objc!=2 ){
2666     Tcl_AppendResult(interp, "wrong # args: should be \"",
2667         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2668     return TCL_ERROR;
2669   }
2670 
2671   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2672   rc = sqlite3_stmt_readonly(pStmt);
2673   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2674   return TCL_OK;
2675 }
2676 
2677 /*
2678 ** Usage:  sqlite3_stmt_busy  STMT
2679 **
2680 ** Return true if STMT is a non-NULL pointer to a statement
2681 ** that has been stepped but not to completion.
2682 */
2683 static int SQLITE_TCLAPI test_stmt_busy(
2684   void * clientData,
2685   Tcl_Interp *interp,
2686   int objc,
2687   Tcl_Obj *CONST objv[]
2688 ){
2689   sqlite3_stmt *pStmt;
2690   int rc;
2691 
2692   if( objc!=2 ){
2693     Tcl_AppendResult(interp, "wrong # args: should be \"",
2694         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2695     return TCL_ERROR;
2696   }
2697 
2698   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2699   rc = sqlite3_stmt_busy(pStmt);
2700   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2701   return TCL_OK;
2702 }
2703 
2704 /*
2705 ** Usage:  uses_stmt_journal  STMT
2706 **
2707 ** Return true if STMT uses a statement journal.
2708 */
2709 static int SQLITE_TCLAPI uses_stmt_journal(
2710   void * clientData,
2711   Tcl_Interp *interp,
2712   int objc,
2713   Tcl_Obj *CONST objv[]
2714 ){
2715   sqlite3_stmt *pStmt;
2716 
2717   if( objc!=2 ){
2718     Tcl_AppendResult(interp, "wrong # args: should be \"",
2719         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2720     return TCL_ERROR;
2721   }
2722 
2723   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2724   sqlite3_stmt_readonly(pStmt);
2725   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(((Vdbe *)pStmt)->usesStmtJournal));
2726   return TCL_OK;
2727 }
2728 
2729 
2730 /*
2731 ** Usage:  sqlite3_reset  STMT
2732 **
2733 ** Reset a statement handle.
2734 */
2735 static int SQLITE_TCLAPI test_reset(
2736   void * clientData,
2737   Tcl_Interp *interp,
2738   int objc,
2739   Tcl_Obj *CONST objv[]
2740 ){
2741   sqlite3_stmt *pStmt;
2742   int rc;
2743 
2744   if( objc!=2 ){
2745     Tcl_AppendResult(interp, "wrong # args: should be \"",
2746         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2747     return TCL_ERROR;
2748   }
2749 
2750   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2751 
2752   rc = sqlite3_reset(pStmt);
2753   if( pStmt && sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ){
2754     return TCL_ERROR;
2755   }
2756   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2757 /*
2758   if( rc ){
2759     return TCL_ERROR;
2760   }
2761 */
2762   return TCL_OK;
2763 }
2764 
2765 /*
2766 ** Usage:  sqlite3_expired STMT
2767 **
2768 ** Return TRUE if a recompilation of the statement is recommended.
2769 */
2770 static int SQLITE_TCLAPI test_expired(
2771   void * clientData,
2772   Tcl_Interp *interp,
2773   int objc,
2774   Tcl_Obj *CONST objv[]
2775 ){
2776 #ifndef SQLITE_OMIT_DEPRECATED
2777   sqlite3_stmt *pStmt;
2778   if( objc!=2 ){
2779     Tcl_AppendResult(interp, "wrong # args: should be \"",
2780         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2781     return TCL_ERROR;
2782   }
2783   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2784   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(sqlite3_expired(pStmt)));
2785 #endif
2786   return TCL_OK;
2787 }
2788 
2789 /*
2790 ** Usage:  sqlite3_transfer_bindings FROMSTMT TOSTMT
2791 **
2792 ** Transfer all bindings from FROMSTMT over to TOSTMT
2793 */
2794 static int SQLITE_TCLAPI test_transfer_bind(
2795   void * clientData,
2796   Tcl_Interp *interp,
2797   int objc,
2798   Tcl_Obj *CONST objv[]
2799 ){
2800 #ifndef SQLITE_OMIT_DEPRECATED
2801   sqlite3_stmt *pStmt1, *pStmt2;
2802   if( objc!=3 ){
2803     Tcl_AppendResult(interp, "wrong # args: should be \"",
2804         Tcl_GetStringFromObj(objv[0], 0), " FROM-STMT TO-STMT", 0);
2805     return TCL_ERROR;
2806   }
2807   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt1)) return TCL_ERROR;
2808   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt2)) return TCL_ERROR;
2809   Tcl_SetObjResult(interp,
2810      Tcl_NewIntObj(sqlite3_transfer_bindings(pStmt1,pStmt2)));
2811 #endif
2812   return TCL_OK;
2813 }
2814 
2815 /*
2816 ** Usage:  sqlite3_changes DB
2817 **
2818 ** Return the number of changes made to the database by the last SQL
2819 ** execution.
2820 */
2821 static int SQLITE_TCLAPI test_changes(
2822   void * clientData,
2823   Tcl_Interp *interp,
2824   int objc,
2825   Tcl_Obj *CONST objv[]
2826 ){
2827   sqlite3 *db;
2828   if( objc!=2 ){
2829     Tcl_AppendResult(interp, "wrong # args: should be \"",
2830        Tcl_GetString(objv[0]), " DB", 0);
2831     return TCL_ERROR;
2832   }
2833   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2834   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_changes(db)));
2835   return TCL_OK;
2836 }
2837 
2838 /*
2839 ** This is the "static_bind_value" that variables are bound to when
2840 ** the FLAG option of sqlite3_bind is "static"
2841 */
2842 static char *sqlite_static_bind_value = 0;
2843 static int sqlite_static_bind_nbyte = 0;
2844 
2845 /*
2846 ** Usage:  sqlite3_bind  VM  IDX  VALUE  FLAGS
2847 **
2848 ** Sets the value of the IDX-th occurrence of "?" in the original SQL
2849 ** string.  VALUE is the new value.  If FLAGS=="null" then VALUE is
2850 ** ignored and the value is set to NULL.  If FLAGS=="static" then
2851 ** the value is set to the value of a static variable named
2852 ** "sqlite_static_bind_value".  If FLAGS=="normal" then a copy
2853 ** of the VALUE is made.  If FLAGS=="blob10" then a VALUE is ignored
2854 ** an a 10-byte blob "abc\000xyz\000pq" is inserted.
2855 */
2856 static int SQLITE_TCLAPI test_bind(
2857   void *NotUsed,
2858   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2859   int argc,              /* Number of arguments */
2860   char **argv            /* Text of each argument */
2861 ){
2862   sqlite3_stmt *pStmt;
2863   int rc;
2864   int idx;
2865   if( argc!=5 ){
2866     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2867        " VM IDX VALUE (null|static|normal)\"", 0);
2868     return TCL_ERROR;
2869   }
2870   if( getStmtPointer(interp, argv[1], &pStmt) ) return TCL_ERROR;
2871   if( Tcl_GetInt(interp, argv[2], &idx) ) return TCL_ERROR;
2872   if( strcmp(argv[4],"null")==0 ){
2873     rc = sqlite3_bind_null(pStmt, idx);
2874   }else if( strcmp(argv[4],"static")==0 ){
2875     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value, -1, 0);
2876   }else if( strcmp(argv[4],"static-nbytes")==0 ){
2877     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value,
2878                                        sqlite_static_bind_nbyte, 0);
2879   }else if( strcmp(argv[4],"normal")==0 ){
2880     rc = sqlite3_bind_text(pStmt, idx, argv[3], -1, SQLITE_TRANSIENT);
2881   }else if( strcmp(argv[4],"blob10")==0 ){
2882     rc = sqlite3_bind_text(pStmt, idx, "abc\000xyz\000pq", 10, SQLITE_STATIC);
2883   }else{
2884     Tcl_AppendResult(interp, "4th argument should be "
2885         "\"null\" or \"static\" or \"normal\"", 0);
2886     return TCL_ERROR;
2887   }
2888   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2889   if( rc ){
2890     char zBuf[50];
2891     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
2892     Tcl_AppendResult(interp, zBuf, sqlite3ErrStr(rc), 0);
2893     return TCL_ERROR;
2894   }
2895   return TCL_OK;
2896 }
2897 
2898 #ifndef SQLITE_OMIT_UTF16
2899 /*
2900 ** Usage: add_test_collate <db ptr> <utf8> <utf16le> <utf16be>
2901 **
2902 ** This function is used to test that SQLite selects the correct collation
2903 ** sequence callback when multiple versions (for different text encodings)
2904 ** are available.
2905 **
2906 ** Calling this routine registers the collation sequence "test_collate"
2907 ** with database handle <db>. The second argument must be a list of three
2908 ** boolean values. If the first is true, then a version of test_collate is
2909 ** registered for UTF-8, if the second is true, a version is registered for
2910 ** UTF-16le, if the third is true, a UTF-16be version is available.
2911 ** Previous versions of test_collate are deleted.
2912 **
2913 ** The collation sequence test_collate is implemented by calling the
2914 ** following TCL script:
2915 **
2916 **   "test_collate <enc> <lhs> <rhs>"
2917 **
2918 ** The <lhs> and <rhs> are the two values being compared, encoded in UTF-8.
2919 ** The <enc> parameter is the encoding of the collation function that
2920 ** SQLite selected to call. The TCL test script implements the
2921 ** "test_collate" proc.
2922 **
2923 ** Note that this will only work with one interpreter at a time, as the
2924 ** interp pointer to use when evaluating the TCL script is stored in
2925 ** pTestCollateInterp.
2926 */
2927 static Tcl_Interp* pTestCollateInterp;
2928 static int test_collate_func(
2929   void *pCtx,
2930   int nA, const void *zA,
2931   int nB, const void *zB
2932 ){
2933   Tcl_Interp *i = pTestCollateInterp;
2934   int encin = SQLITE_PTR_TO_INT(pCtx);
2935   int res;
2936   int n;
2937 
2938   sqlite3_value *pVal;
2939   Tcl_Obj *pX;
2940 
2941   pX = Tcl_NewStringObj("test_collate", -1);
2942   Tcl_IncrRefCount(pX);
2943 
2944   switch( encin ){
2945     case SQLITE_UTF8:
2946       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-8",-1));
2947       break;
2948     case SQLITE_UTF16LE:
2949       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16LE",-1));
2950       break;
2951     case SQLITE_UTF16BE:
2952       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16BE",-1));
2953       break;
2954     default:
2955       assert(0);
2956   }
2957 
2958   sqlite3BeginBenignMalloc();
2959   pVal = sqlite3ValueNew(0);
2960   if( pVal ){
2961     sqlite3ValueSetStr(pVal, nA, zA, encin, SQLITE_STATIC);
2962     n = sqlite3_value_bytes(pVal);
2963     Tcl_ListObjAppendElement(i,pX,
2964         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2965     sqlite3ValueSetStr(pVal, nB, zB, encin, SQLITE_STATIC);
2966     n = sqlite3_value_bytes(pVal);
2967     Tcl_ListObjAppendElement(i,pX,
2968         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2969     sqlite3ValueFree(pVal);
2970   }
2971   sqlite3EndBenignMalloc();
2972 
2973   Tcl_EvalObjEx(i, pX, 0);
2974   Tcl_DecrRefCount(pX);
2975   Tcl_GetIntFromObj(i, Tcl_GetObjResult(i), &res);
2976   return res;
2977 }
2978 static int SQLITE_TCLAPI test_collate(
2979   void * clientData,
2980   Tcl_Interp *interp,
2981   int objc,
2982   Tcl_Obj *CONST objv[]
2983 ){
2984   sqlite3 *db;
2985   int val;
2986   sqlite3_value *pVal;
2987   int rc;
2988 
2989   if( objc!=5 ) goto bad_args;
2990   pTestCollateInterp = interp;
2991   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2992 
2993   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2994   rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF8,
2995           (void *)SQLITE_UTF8, val?test_collate_func:0);
2996   if( rc==SQLITE_OK ){
2997     const void *zUtf16;
2998     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2999     rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF16LE,
3000             (void *)SQLITE_UTF16LE, val?test_collate_func:0);
3001     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
3002 
3003 #if 0
3004     if( sqlite3_iMallocFail>0 ){
3005       sqlite3_iMallocFail++;
3006     }
3007 #endif
3008     sqlite3_mutex_enter(db->mutex);
3009     pVal = sqlite3ValueNew(db);
3010     sqlite3ValueSetStr(pVal, -1, "test_collate", SQLITE_UTF8, SQLITE_STATIC);
3011     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
3012     if( db->mallocFailed ){
3013       rc = SQLITE_NOMEM;
3014     }else{
3015       rc = sqlite3_create_collation16(db, zUtf16, SQLITE_UTF16BE,
3016           (void *)SQLITE_UTF16BE, val?test_collate_func:0);
3017     }
3018     sqlite3ValueFree(pVal);
3019     sqlite3_mutex_leave(db->mutex);
3020   }
3021   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3022 
3023   if( rc!=SQLITE_OK ){
3024     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3025     return TCL_ERROR;
3026   }
3027   return TCL_OK;
3028 
3029 bad_args:
3030   Tcl_AppendResult(interp, "wrong # args: should be \"",
3031       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
3032   return TCL_ERROR;
3033 }
3034 
3035 /*
3036 ** Usage: add_test_utf16bin_collate <db ptr>
3037 **
3038 ** Add a utf-16 collation sequence named "utf16bin" to the database
3039 ** handle. This collation sequence compares arguments in the same way as the
3040 ** built-in collation "binary".
3041 */
3042 static int test_utf16bin_collate_func(
3043   void *pCtx,
3044   int nA, const void *zA,
3045   int nB, const void *zB
3046 ){
3047   int nCmp = (nA>nB ? nB : nA);
3048   int res = memcmp(zA, zB, nCmp);
3049   if( res==0 ) res = nA - nB;
3050   return res;
3051 }
3052 static int SQLITE_TCLAPI test_utf16bin_collate(
3053   void * clientData,
3054   Tcl_Interp *interp,
3055   int objc,
3056   Tcl_Obj *CONST objv[]
3057 ){
3058   sqlite3 *db;
3059   int rc;
3060 
3061   if( objc!=2 ) goto bad_args;
3062   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3063 
3064   rc = sqlite3_create_collation(db, "utf16bin", SQLITE_UTF16, 0,
3065       test_utf16bin_collate_func
3066   );
3067   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3068   return TCL_OK;
3069 
3070 bad_args:
3071   Tcl_WrongNumArgs(interp, 1, objv, "DB");
3072   return TCL_ERROR;
3073 }
3074 
3075 /*
3076 ** When the collation needed callback is invoked, record the name of
3077 ** the requested collating function here.  The recorded name is linked
3078 ** to a TCL variable and used to make sure that the requested collation
3079 ** name is correct.
3080 */
3081 static char zNeededCollation[200];
3082 static char *pzNeededCollation = zNeededCollation;
3083 
3084 
3085 /*
3086 ** Called when a collating sequence is needed.  Registered using
3087 ** sqlite3_collation_needed16().
3088 */
3089 static void test_collate_needed_cb(
3090   void *pCtx,
3091   sqlite3 *db,
3092   int eTextRep,
3093   const void *pName
3094 ){
3095   int enc = ENC(db);
3096   int i;
3097   char *z;
3098   for(z = (char*)pName, i=0; *z || z[1]; z++){
3099     if( *z ) zNeededCollation[i++] = *z;
3100   }
3101   zNeededCollation[i] = 0;
3102   sqlite3_create_collation(
3103       db, "test_collate", ENC(db), SQLITE_INT_TO_PTR(enc), test_collate_func);
3104 }
3105 
3106 /*
3107 ** Usage: add_test_collate_needed DB
3108 */
3109 static int SQLITE_TCLAPI test_collate_needed(
3110   void * clientData,
3111   Tcl_Interp *interp,
3112   int objc,
3113   Tcl_Obj *CONST objv[]
3114 ){
3115   sqlite3 *db;
3116   int rc;
3117 
3118   if( objc!=2 ) goto bad_args;
3119   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3120   rc = sqlite3_collation_needed16(db, 0, test_collate_needed_cb);
3121   zNeededCollation[0] = 0;
3122   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3123   return TCL_OK;
3124 
3125 bad_args:
3126   Tcl_WrongNumArgs(interp, 1, objv, "DB");
3127   return TCL_ERROR;
3128 }
3129 
3130 /*
3131 ** tclcmd:   add_alignment_test_collations  DB
3132 **
3133 ** Add two new collating sequences to the database DB
3134 **
3135 **     utf16_aligned
3136 **     utf16_unaligned
3137 **
3138 ** Both collating sequences use the same sort order as BINARY.
3139 ** The only difference is that the utf16_aligned collating
3140 ** sequence is declared with the SQLITE_UTF16_ALIGNED flag.
3141 ** Both collating functions increment the unaligned utf16 counter
3142 ** whenever they see a string that begins on an odd byte boundary.
3143 */
3144 static int unaligned_string_counter = 0;
3145 static int alignmentCollFunc(
3146   void *NotUsed,
3147   int nKey1, const void *pKey1,
3148   int nKey2, const void *pKey2
3149 ){
3150   int rc, n;
3151   n = nKey1<nKey2 ? nKey1 : nKey2;
3152   if( nKey1>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey1))) ) unaligned_string_counter++;
3153   if( nKey2>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey2))) ) unaligned_string_counter++;
3154   rc = memcmp(pKey1, pKey2, n);
3155   if( rc==0 ){
3156     rc = nKey1 - nKey2;
3157   }
3158   return rc;
3159 }
3160 static int SQLITE_TCLAPI add_alignment_test_collations(
3161   void * clientData,
3162   Tcl_Interp *interp,
3163   int objc,
3164   Tcl_Obj *CONST objv[]
3165 ){
3166   sqlite3 *db;
3167   if( objc>=2 ){
3168     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3169     sqlite3_create_collation(db, "utf16_unaligned", SQLITE_UTF16,
3170         0, alignmentCollFunc);
3171     sqlite3_create_collation(db, "utf16_aligned", SQLITE_UTF16_ALIGNED,
3172         0, alignmentCollFunc);
3173   }
3174   return SQLITE_OK;
3175 }
3176 #endif /* !defined(SQLITE_OMIT_UTF16) */
3177 
3178 /*
3179 ** Usage: add_test_function <db ptr> <utf8> <utf16le> <utf16be>
3180 **
3181 ** This function is used to test that SQLite selects the correct user
3182 ** function callback when multiple versions (for different text encodings)
3183 ** are available.
3184 **
3185 ** Calling this routine registers up to three versions of the user function
3186 ** "test_function" with database handle <db>.  If the second argument is
3187 ** true, then a version of test_function is registered for UTF-8, if the
3188 ** third is true, a version is registered for UTF-16le, if the fourth is
3189 ** true, a UTF-16be version is available.  Previous versions of
3190 ** test_function are deleted.
3191 **
3192 ** The user function is implemented by calling the following TCL script:
3193 **
3194 **   "test_function <enc> <arg>"
3195 **
3196 ** Where <enc> is one of UTF-8, UTF-16LE or UTF16BE, and <arg> is the
3197 ** single argument passed to the SQL function. The value returned by
3198 ** the TCL script is used as the return value of the SQL function. It
3199 ** is passed to SQLite using UTF-16BE for a UTF-8 test_function(), UTF-8
3200 ** for a UTF-16LE test_function(), and UTF-16LE for an implementation that
3201 ** prefers UTF-16BE.
3202 */
3203 #ifndef SQLITE_OMIT_UTF16
3204 static void test_function_utf8(
3205   sqlite3_context *pCtx,
3206   int nArg,
3207   sqlite3_value **argv
3208 ){
3209   Tcl_Interp *interp;
3210   Tcl_Obj *pX;
3211   sqlite3_value *pVal;
3212   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3213   pX = Tcl_NewStringObj("test_function", -1);
3214   Tcl_IncrRefCount(pX);
3215   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-8", -1));
3216   Tcl_ListObjAppendElement(interp, pX,
3217       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3218   Tcl_EvalObjEx(interp, pX, 0);
3219   Tcl_DecrRefCount(pX);
3220   sqlite3_result_text(pCtx, Tcl_GetStringResult(interp), -1, SQLITE_TRANSIENT);
3221   pVal = sqlite3ValueNew(0);
3222   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3223       SQLITE_UTF8, SQLITE_STATIC);
3224   sqlite3_result_text16be(pCtx, sqlite3_value_text16be(pVal),
3225       -1, SQLITE_TRANSIENT);
3226   sqlite3ValueFree(pVal);
3227 }
3228 static void test_function_utf16le(
3229   sqlite3_context *pCtx,
3230   int nArg,
3231   sqlite3_value **argv
3232 ){
3233   Tcl_Interp *interp;
3234   Tcl_Obj *pX;
3235   sqlite3_value *pVal;
3236   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3237   pX = Tcl_NewStringObj("test_function", -1);
3238   Tcl_IncrRefCount(pX);
3239   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16LE", -1));
3240   Tcl_ListObjAppendElement(interp, pX,
3241       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3242   Tcl_EvalObjEx(interp, pX, 0);
3243   Tcl_DecrRefCount(pX);
3244   pVal = sqlite3ValueNew(0);
3245   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3246       SQLITE_UTF8, SQLITE_STATIC);
3247   sqlite3_result_text(pCtx,(char*)sqlite3_value_text(pVal),-1,SQLITE_TRANSIENT);
3248   sqlite3ValueFree(pVal);
3249 }
3250 static void test_function_utf16be(
3251   sqlite3_context *pCtx,
3252   int nArg,
3253   sqlite3_value **argv
3254 ){
3255   Tcl_Interp *interp;
3256   Tcl_Obj *pX;
3257   sqlite3_value *pVal;
3258   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3259   pX = Tcl_NewStringObj("test_function", -1);
3260   Tcl_IncrRefCount(pX);
3261   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16BE", -1));
3262   Tcl_ListObjAppendElement(interp, pX,
3263       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3264   Tcl_EvalObjEx(interp, pX, 0);
3265   Tcl_DecrRefCount(pX);
3266   pVal = sqlite3ValueNew(0);
3267   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3268       SQLITE_UTF8, SQLITE_STATIC);
3269   sqlite3_result_text16(pCtx, sqlite3_value_text16le(pVal),
3270       -1, SQLITE_TRANSIENT);
3271   sqlite3_result_text16be(pCtx, sqlite3_value_text16le(pVal),
3272       -1, SQLITE_TRANSIENT);
3273   sqlite3_result_text16le(pCtx, sqlite3_value_text16le(pVal),
3274       -1, SQLITE_TRANSIENT);
3275   sqlite3ValueFree(pVal);
3276 }
3277 #endif /* SQLITE_OMIT_UTF16 */
3278 static int SQLITE_TCLAPI test_function(
3279   void * clientData,
3280   Tcl_Interp *interp,
3281   int objc,
3282   Tcl_Obj *CONST objv[]
3283 ){
3284 #ifndef SQLITE_OMIT_UTF16
3285   sqlite3 *db;
3286   int val;
3287 
3288   if( objc!=5 ) goto bad_args;
3289   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3290 
3291   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
3292   if( val ){
3293     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF8,
3294         interp, test_function_utf8, 0, 0);
3295   }
3296   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
3297   if( val ){
3298     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16LE,
3299         interp, test_function_utf16le, 0, 0);
3300   }
3301   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
3302   if( val ){
3303     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16BE,
3304         interp, test_function_utf16be, 0, 0);
3305   }
3306 
3307   return TCL_OK;
3308 bad_args:
3309   Tcl_AppendResult(interp, "wrong # args: should be \"",
3310       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
3311 #endif /* SQLITE_OMIT_UTF16 */
3312   return TCL_ERROR;
3313 }
3314 
3315 /*
3316 ** Usage:         sqlite3_test_errstr <err code>
3317 **
3318 ** Test that the english language string equivalents for sqlite error codes
3319 ** are sane. The parameter is an integer representing an sqlite error code.
3320 ** The result is a list of two elements, the string representation of the
3321 ** error code and the english language explanation.
3322 */
3323 static int SQLITE_TCLAPI test_errstr(
3324   void * clientData,
3325   Tcl_Interp *interp,
3326   int objc,
3327   Tcl_Obj *CONST objv[]
3328 ){
3329   char *zCode;
3330   int i;
3331   if( objc!=1 ){
3332     Tcl_WrongNumArgs(interp, 1, objv, "<error code>");
3333   }
3334 
3335   zCode = Tcl_GetString(objv[1]);
3336   for(i=0; i<200; i++){
3337     if( 0==strcmp(t1ErrorName(i), zCode) ) break;
3338   }
3339   Tcl_SetResult(interp, (char *)sqlite3ErrStr(i), 0);
3340   return TCL_OK;
3341 }
3342 
3343 /*
3344 ** Usage:    breakpoint
3345 **
3346 ** This routine exists for one purpose - to provide a place to put a
3347 ** breakpoint with GDB that can be triggered using TCL code.  The use
3348 ** for this is when a particular test fails on (say) the 1485th iteration.
3349 ** In the TCL test script, we can add code like this:
3350 **
3351 **     if {$i==1485} breakpoint
3352 **
3353 ** Then run testfixture in the debugger and wait for the breakpoint to
3354 ** fire.  Then additional breakpoints can be set to trace down the bug.
3355 */
3356 static int SQLITE_TCLAPI test_breakpoint(
3357   void *NotUsed,
3358   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
3359   int argc,              /* Number of arguments */
3360   char **argv            /* Text of each argument */
3361 ){
3362   return TCL_OK;         /* Do nothing */
3363 }
3364 
3365 /*
3366 ** Usage:   sqlite3_bind_zeroblob  STMT IDX N
3367 **
3368 ** Test the sqlite3_bind_zeroblob interface.  STMT is a prepared statement.
3369 ** IDX is the index of a wildcard in the prepared statement.  This command
3370 ** binds a N-byte zero-filled BLOB to the wildcard.
3371 */
3372 static int SQLITE_TCLAPI test_bind_zeroblob(
3373   void * clientData,
3374   Tcl_Interp *interp,
3375   int objc,
3376   Tcl_Obj *CONST objv[]
3377 ){
3378   sqlite3_stmt *pStmt;
3379   int idx;
3380   int n;
3381   int rc;
3382 
3383   if( objc!=4 ){
3384     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
3385     return TCL_ERROR;
3386   }
3387 
3388   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3389   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3390   if( Tcl_GetIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3391 
3392   rc = sqlite3_bind_zeroblob(pStmt, idx, n);
3393   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3394   if( rc!=SQLITE_OK ){
3395     return TCL_ERROR;
3396   }
3397 
3398   return TCL_OK;
3399 }
3400 
3401 /*
3402 ** Usage:   sqlite3_bind_zeroblob64  STMT IDX N
3403 **
3404 ** Test the sqlite3_bind_zeroblob64 interface.  STMT is a prepared statement.
3405 ** IDX is the index of a wildcard in the prepared statement.  This command
3406 ** binds a N-byte zero-filled BLOB to the wildcard.
3407 */
3408 static int SQLITE_TCLAPI test_bind_zeroblob64(
3409   void * clientData,
3410   Tcl_Interp *interp,
3411   int objc,
3412   Tcl_Obj *CONST objv[]
3413 ){
3414   sqlite3_stmt *pStmt;
3415   int idx;
3416   Tcl_WideInt n;
3417   int rc;
3418 
3419   if( objc!=4 ){
3420     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
3421     return TCL_ERROR;
3422   }
3423 
3424   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3425   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3426   if( Tcl_GetWideIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3427 
3428   rc = sqlite3_bind_zeroblob64(pStmt, idx, n);
3429   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3430   if( rc!=SQLITE_OK ){
3431     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3432     return TCL_ERROR;
3433   }
3434 
3435   return TCL_OK;
3436 }
3437 
3438 /*
3439 ** Usage:   sqlite3_bind_int  STMT N VALUE
3440 **
3441 ** Test the sqlite3_bind_int interface.  STMT is a prepared statement.
3442 ** N is the index of a wildcard in the prepared statement.  This command
3443 ** binds a 32-bit integer VALUE to that wildcard.
3444 */
3445 static int SQLITE_TCLAPI test_bind_int(
3446   void * clientData,
3447   Tcl_Interp *interp,
3448   int objc,
3449   Tcl_Obj *CONST objv[]
3450 ){
3451   sqlite3_stmt *pStmt;
3452   int idx;
3453   int value;
3454   int rc;
3455 
3456   if( objc!=4 ){
3457     Tcl_AppendResult(interp, "wrong # args: should be \"",
3458         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3459     return TCL_ERROR;
3460   }
3461 
3462   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3463   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3464   if( Tcl_GetIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3465 
3466   rc = sqlite3_bind_int(pStmt, idx, value);
3467   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3468   if( rc!=SQLITE_OK ){
3469     return TCL_ERROR;
3470   }
3471 
3472   return TCL_OK;
3473 }
3474 
3475 
3476 /*
3477 ** Usage:   intarray_addr  INT  ...
3478 **
3479 ** Return the address of a C-language array of 32-bit integers.
3480 **
3481 ** Space to hold the array is obtained from malloc().  Call this procedure once
3482 ** with no arguments in order to release memory.  Each call to this procedure
3483 ** overwrites the previous array.
3484 */
3485 static int SQLITE_TCLAPI test_intarray_addr(
3486   void * clientData,
3487   Tcl_Interp *interp,
3488   int objc,
3489   Tcl_Obj *CONST objv[]
3490 ){
3491   int i;
3492   static int *p = 0;
3493 
3494   sqlite3_free(p);
3495   p = 0;
3496   if( objc>1 ){
3497     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3498     if( p==0 ) return TCL_ERROR;
3499     for(i=0; i<objc-1; i++){
3500       if( Tcl_GetIntFromObj(interp, objv[1+i], &p[i]) ){
3501         sqlite3_free(p);
3502         p = 0;
3503         return TCL_ERROR;
3504       }
3505     }
3506   }
3507   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3508   return TCL_OK;
3509 }
3510 /*
3511 ** Usage:   intarray_addr  INT  ...
3512 **
3513 ** Return the address of a C-language array of 32-bit integers.
3514 **
3515 ** Space to hold the array is obtained from malloc().  Call this procedure once
3516 ** with no arguments in order to release memory.  Each call to this procedure
3517 ** overwrites the previous array.
3518 */
3519 static int SQLITE_TCLAPI test_int64array_addr(
3520   void * clientData,
3521   Tcl_Interp *interp,
3522   int objc,
3523   Tcl_Obj *CONST objv[]
3524 ){
3525   int i;
3526   static sqlite3_int64 *p = 0;
3527 
3528   sqlite3_free(p);
3529   p = 0;
3530   if( objc>1 ){
3531     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3532     if( p==0 ) return TCL_ERROR;
3533     for(i=0; i<objc-1; i++){
3534       Tcl_WideInt v;
3535       if( Tcl_GetWideIntFromObj(interp, objv[1+i], &v) ){
3536         sqlite3_free(p);
3537         p = 0;
3538         return TCL_ERROR;
3539       }
3540       p[i] = v;
3541     }
3542   }
3543   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3544   return TCL_OK;
3545 }
3546 /*
3547 ** Usage:   doublearray_addr  INT  ...
3548 **
3549 ** Return the address of a C-language array of doubles.
3550 **
3551 ** Space to hold the array is obtained from malloc().  Call this procedure once
3552 ** with no arguments in order to release memory.  Each call to this procedure
3553 ** overwrites the previous array.
3554 */
3555 static int SQLITE_TCLAPI test_doublearray_addr(
3556   void * clientData,
3557   Tcl_Interp *interp,
3558   int objc,
3559   Tcl_Obj *CONST objv[]
3560 ){
3561   int i;
3562   static double *p = 0;
3563 
3564   sqlite3_free(p);
3565   p = 0;
3566   if( objc>1 ){
3567     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3568     if( p==0 ) return TCL_ERROR;
3569     for(i=0; i<objc-1; i++){
3570       if( Tcl_GetDoubleFromObj(interp, objv[1+i], &p[i]) ){
3571         sqlite3_free(p);
3572         p = 0;
3573         return TCL_ERROR;
3574       }
3575     }
3576   }
3577   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3578   return TCL_OK;
3579 }
3580 /*
3581 ** Usage:   textarray_addr  TEXT ...
3582 **
3583 ** Return the address of a C-language array of strings.
3584 **
3585 ** Space to hold the array is obtained from malloc().  Call this procedure once
3586 ** with no arguments in order to release memory.  Each call to this procedure
3587 ** overwrites the previous array.
3588 */
3589 static int SQLITE_TCLAPI test_textarray_addr(
3590   void * clientData,
3591   Tcl_Interp *interp,
3592   int objc,
3593   Tcl_Obj *CONST objv[]
3594 ){
3595   int i;
3596   static int n = 0;
3597   static char **p = 0;
3598 
3599   for(i=0; i<n; i++) sqlite3_free(p[i]);
3600   sqlite3_free(p);
3601   p = 0;
3602   if( objc>1 ){
3603     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3604     if( p==0 ) return TCL_ERROR;
3605     for(i=0; i<objc-1; i++){
3606       p[i] = sqlite3_mprintf("%s", Tcl_GetString(objv[1+i]));
3607     }
3608   }
3609   n = objc-1;
3610   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3611   return TCL_OK;
3612 }
3613 
3614 
3615 /*
3616 ** Usage:   sqlite3_bind_int64  STMT N VALUE
3617 **
3618 ** Test the sqlite3_bind_int64 interface.  STMT is a prepared statement.
3619 ** N is the index of a wildcard in the prepared statement.  This command
3620 ** binds a 64-bit integer VALUE to that wildcard.
3621 */
3622 static int SQLITE_TCLAPI test_bind_int64(
3623   void * clientData,
3624   Tcl_Interp *interp,
3625   int objc,
3626   Tcl_Obj *CONST objv[]
3627 ){
3628   sqlite3_stmt *pStmt;
3629   int idx;
3630   Tcl_WideInt value;
3631   int rc;
3632 
3633   if( objc!=4 ){
3634     Tcl_AppendResult(interp, "wrong # args: should be \"",
3635         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3636     return TCL_ERROR;
3637   }
3638 
3639   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3640   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3641   if( Tcl_GetWideIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3642 
3643   rc = sqlite3_bind_int64(pStmt, idx, value);
3644   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3645   if( rc!=SQLITE_OK ){
3646     return TCL_ERROR;
3647   }
3648 
3649   return TCL_OK;
3650 }
3651 
3652 
3653 /*
3654 ** Usage:   sqlite3_bind_double  STMT N VALUE
3655 **
3656 ** Test the sqlite3_bind_double interface.  STMT is a prepared statement.
3657 ** N is the index of a wildcard in the prepared statement.  This command
3658 ** binds a 64-bit integer VALUE to that wildcard.
3659 */
3660 static int SQLITE_TCLAPI test_bind_double(
3661   void * clientData,
3662   Tcl_Interp *interp,
3663   int objc,
3664   Tcl_Obj *CONST objv[]
3665 ){
3666   sqlite3_stmt *pStmt;
3667   int idx;
3668   double value = 0;
3669   int rc;
3670   const char *zVal;
3671   int i;
3672   static const struct {
3673     const char *zName;     /* Name of the special floating point value */
3674     unsigned int iUpper;   /* Upper 32 bits */
3675     unsigned int iLower;   /* Lower 32 bits */
3676   } aSpecialFp[] = {
3677     {  "NaN",      0x7fffffff, 0xffffffff },
3678     {  "SNaN",     0x7ff7ffff, 0xffffffff },
3679     {  "-NaN",     0xffffffff, 0xffffffff },
3680     {  "-SNaN",    0xfff7ffff, 0xffffffff },
3681     {  "+Inf",     0x7ff00000, 0x00000000 },
3682     {  "-Inf",     0xfff00000, 0x00000000 },
3683     {  "Epsilon",  0x00000000, 0x00000001 },
3684     {  "-Epsilon", 0x80000000, 0x00000001 },
3685     {  "NaN0",     0x7ff80000, 0x00000000 },
3686     {  "-NaN0",    0xfff80000, 0x00000000 },
3687   };
3688 
3689   if( objc!=4 ){
3690     Tcl_AppendResult(interp, "wrong # args: should be \"",
3691         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3692     return TCL_ERROR;
3693   }
3694 
3695   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3696   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3697 
3698   /* Intercept the string "NaN" and generate a NaN value for it.
3699   ** All other strings are passed through to Tcl_GetDoubleFromObj().
3700   ** Tcl_GetDoubleFromObj() should understand "NaN" but some versions
3701   ** contain a bug.
3702   */
3703   zVal = Tcl_GetString(objv[3]);
3704   for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
3705     if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
3706       sqlite3_uint64 x;
3707       x = aSpecialFp[i].iUpper;
3708       x <<= 32;
3709       x |= aSpecialFp[i].iLower;
3710       assert( sizeof(value)==8 );
3711       assert( sizeof(x)==8 );
3712       memcpy(&value, &x, 8);
3713       break;
3714     }
3715   }
3716   if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
3717          Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
3718     return TCL_ERROR;
3719   }
3720   rc = sqlite3_bind_double(pStmt, idx, value);
3721   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3722   if( rc!=SQLITE_OK ){
3723     return TCL_ERROR;
3724   }
3725 
3726   return TCL_OK;
3727 }
3728 
3729 /*
3730 ** Usage:   sqlite3_bind_null  STMT N
3731 **
3732 ** Test the sqlite3_bind_null interface.  STMT is a prepared statement.
3733 ** N is the index of a wildcard in the prepared statement.  This command
3734 ** binds a NULL to the wildcard.
3735 */
3736 static int SQLITE_TCLAPI test_bind_null(
3737   void * clientData,
3738   Tcl_Interp *interp,
3739   int objc,
3740   Tcl_Obj *CONST objv[]
3741 ){
3742   sqlite3_stmt *pStmt;
3743   int idx;
3744   int rc;
3745 
3746   if( objc!=3 ){
3747     Tcl_AppendResult(interp, "wrong # args: should be \"",
3748         Tcl_GetStringFromObj(objv[0], 0), " STMT N", 0);
3749     return TCL_ERROR;
3750   }
3751 
3752   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3753   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3754 
3755   rc = sqlite3_bind_null(pStmt, idx);
3756   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3757   if( rc!=SQLITE_OK ){
3758     return TCL_ERROR;
3759   }
3760 
3761   return TCL_OK;
3762 }
3763 
3764 /*
3765 ** Usage:   sqlite3_bind_text  STMT N STRING BYTES
3766 **
3767 ** Test the sqlite3_bind_text interface.  STMT is a prepared statement.
3768 ** N is the index of a wildcard in the prepared statement.  This command
3769 ** binds a UTF-8 string STRING to the wildcard.  The string is BYTES bytes
3770 ** long.
3771 */
3772 static int SQLITE_TCLAPI test_bind_text(
3773   void * clientData,
3774   Tcl_Interp *interp,
3775   int objc,
3776   Tcl_Obj *CONST objv[]
3777 ){
3778   sqlite3_stmt *pStmt;
3779   int idx;
3780   int bytes;
3781   char *value;
3782   int rc;
3783 
3784   if( objc!=5 ){
3785     Tcl_AppendResult(interp, "wrong # args: should be \"",
3786         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3787     return TCL_ERROR;
3788   }
3789 
3790   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3791   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3792   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &bytes);
3793   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3794 
3795   rc = sqlite3_bind_text(pStmt, idx, value, bytes, SQLITE_TRANSIENT);
3796   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3797   if( rc!=SQLITE_OK ){
3798     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3799     return TCL_ERROR;
3800   }
3801 
3802   return TCL_OK;
3803 }
3804 
3805 /*
3806 ** Usage:   sqlite3_bind_text16 ?-static? STMT N STRING BYTES
3807 **
3808 ** Test the sqlite3_bind_text16 interface.  STMT is a prepared statement.
3809 ** N is the index of a wildcard in the prepared statement.  This command
3810 ** binds a UTF-16 string STRING to the wildcard.  The string is BYTES bytes
3811 ** long.
3812 */
3813 static int SQLITE_TCLAPI test_bind_text16(
3814   void * clientData,
3815   Tcl_Interp *interp,
3816   int objc,
3817   Tcl_Obj *CONST objv[]
3818 ){
3819 #ifndef SQLITE_OMIT_UTF16
3820   sqlite3_stmt *pStmt;
3821   int idx;
3822   int bytes;
3823   char *value;
3824   int rc;
3825 
3826   void (*xDel)(void*) = (objc==6?SQLITE_STATIC:SQLITE_TRANSIENT);
3827   Tcl_Obj *oStmt    = objv[objc-4];
3828   Tcl_Obj *oN       = objv[objc-3];
3829   Tcl_Obj *oString  = objv[objc-2];
3830   Tcl_Obj *oBytes   = objv[objc-1];
3831 
3832   if( objc!=5 && objc!=6){
3833     Tcl_AppendResult(interp, "wrong # args: should be \"",
3834         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3835     return TCL_ERROR;
3836   }
3837 
3838   if( getStmtPointer(interp, Tcl_GetString(oStmt), &pStmt) ) return TCL_ERROR;
3839   if( Tcl_GetIntFromObj(interp, oN, &idx) ) return TCL_ERROR;
3840   value = (char*)Tcl_GetByteArrayFromObj(oString, 0);
3841   if( Tcl_GetIntFromObj(interp, oBytes, &bytes) ) return TCL_ERROR;
3842 
3843   rc = sqlite3_bind_text16(pStmt, idx, (void *)value, bytes, xDel);
3844   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3845   if( rc!=SQLITE_OK ){
3846     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3847     return TCL_ERROR;
3848   }
3849 
3850 #endif /* SQLITE_OMIT_UTF16 */
3851   return TCL_OK;
3852 }
3853 
3854 /*
3855 ** Usage:   sqlite3_bind_blob ?-static? STMT N DATA BYTES
3856 **
3857 ** Test the sqlite3_bind_blob interface.  STMT is a prepared statement.
3858 ** N is the index of a wildcard in the prepared statement.  This command
3859 ** binds a BLOB to the wildcard.  The BLOB is BYTES bytes in size.
3860 */
3861 static int SQLITE_TCLAPI test_bind_blob(
3862   void * clientData,
3863   Tcl_Interp *interp,
3864   int objc,
3865   Tcl_Obj *CONST objv[]
3866 ){
3867   sqlite3_stmt *pStmt;
3868   int len, idx;
3869   int bytes;
3870   char *value;
3871   int rc;
3872   sqlite3_destructor_type xDestructor = SQLITE_TRANSIENT;
3873 
3874   if( objc!=5 && objc!=6 ){
3875     Tcl_AppendResult(interp, "wrong # args: should be \"",
3876         Tcl_GetStringFromObj(objv[0], 0), " STMT N DATA BYTES", 0);
3877     return TCL_ERROR;
3878   }
3879 
3880   if( objc==6 ){
3881     xDestructor = SQLITE_STATIC;
3882     objv++;
3883   }
3884 
3885   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3886   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3887 
3888   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &len);
3889   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3890 
3891   if( bytes>len ){
3892     char zBuf[200];
3893     sqlite3_snprintf(sizeof(zBuf), zBuf,
3894                      "cannot use %d blob bytes, have %d", bytes, len);
3895     Tcl_AppendResult(interp, zBuf, -1);
3896     return TCL_ERROR;
3897   }
3898 
3899   rc = sqlite3_bind_blob(pStmt, idx, value, bytes, xDestructor);
3900   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3901   if( rc!=SQLITE_OK ){
3902     return TCL_ERROR;
3903   }
3904 
3905   return TCL_OK;
3906 }
3907 
3908 /*
3909 ** Usage:   sqlite3_bind_parameter_count  STMT
3910 **
3911 ** Return the number of wildcards in the given statement.
3912 */
3913 static int SQLITE_TCLAPI test_bind_parameter_count(
3914   void * clientData,
3915   Tcl_Interp *interp,
3916   int objc,
3917   Tcl_Obj *CONST objv[]
3918 ){
3919   sqlite3_stmt *pStmt;
3920 
3921   if( objc!=2 ){
3922     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3923     return TCL_ERROR;
3924   }
3925   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3926   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_bind_parameter_count(pStmt)));
3927   return TCL_OK;
3928 }
3929 
3930 /*
3931 ** Usage:   sqlite3_bind_parameter_name  STMT  N
3932 **
3933 ** Return the name of the Nth wildcard.  The first wildcard is 1.
3934 ** An empty string is returned if N is out of range or if the wildcard
3935 ** is nameless.
3936 */
3937 static int SQLITE_TCLAPI test_bind_parameter_name(
3938   void * clientData,
3939   Tcl_Interp *interp,
3940   int objc,
3941   Tcl_Obj *CONST objv[]
3942 ){
3943   sqlite3_stmt *pStmt;
3944   int i;
3945 
3946   if( objc!=3 ){
3947     Tcl_WrongNumArgs(interp, 1, objv, "STMT N");
3948     return TCL_ERROR;
3949   }
3950   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3951   if( Tcl_GetIntFromObj(interp, objv[2], &i) ) return TCL_ERROR;
3952   Tcl_SetObjResult(interp,
3953      Tcl_NewStringObj(sqlite3_bind_parameter_name(pStmt,i),-1)
3954   );
3955   return TCL_OK;
3956 }
3957 
3958 /*
3959 ** Usage:   sqlite3_bind_parameter_index  STMT  NAME
3960 **
3961 ** Return the index of the wildcard called NAME.  Return 0 if there is
3962 ** no such wildcard.
3963 */
3964 static int SQLITE_TCLAPI test_bind_parameter_index(
3965   void * clientData,
3966   Tcl_Interp *interp,
3967   int objc,
3968   Tcl_Obj *CONST objv[]
3969 ){
3970   sqlite3_stmt *pStmt;
3971 
3972   if( objc!=3 ){
3973     Tcl_WrongNumArgs(interp, 1, objv, "STMT NAME");
3974     return TCL_ERROR;
3975   }
3976   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3977   Tcl_SetObjResult(interp,
3978      Tcl_NewIntObj(
3979        sqlite3_bind_parameter_index(pStmt,Tcl_GetString(objv[2]))
3980      )
3981   );
3982   return TCL_OK;
3983 }
3984 
3985 /*
3986 ** Usage:   sqlite3_clear_bindings STMT
3987 **
3988 */
3989 static int SQLITE_TCLAPI test_clear_bindings(
3990   void * clientData,
3991   Tcl_Interp *interp,
3992   int objc,
3993   Tcl_Obj *CONST objv[]
3994 ){
3995   sqlite3_stmt *pStmt;
3996 
3997   if( objc!=2 ){
3998     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3999     return TCL_ERROR;
4000   }
4001   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4002   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_clear_bindings(pStmt)));
4003   return TCL_OK;
4004 }
4005 
4006 /*
4007 ** Usage:   sqlite3_sleep MILLISECONDS
4008 */
4009 static int SQLITE_TCLAPI test_sleep(
4010   void * clientData,
4011   Tcl_Interp *interp,
4012   int objc,
4013   Tcl_Obj *CONST objv[]
4014 ){
4015   int ms;
4016 
4017   if( objc!=2 ){
4018     Tcl_WrongNumArgs(interp, 1, objv, "MILLISECONDS");
4019     return TCL_ERROR;
4020   }
4021   if( Tcl_GetIntFromObj(interp, objv[1], &ms) ){
4022     return TCL_ERROR;
4023   }
4024   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_sleep(ms)));
4025   return TCL_OK;
4026 }
4027 
4028 /*
4029 ** Usage: sqlite3_extended_errcode DB
4030 **
4031 ** Return the string representation of the most recent sqlite3_* API
4032 ** error code. e.g. "SQLITE_ERROR".
4033 */
4034 static int SQLITE_TCLAPI test_ex_errcode(
4035   void * clientData,
4036   Tcl_Interp *interp,
4037   int objc,
4038   Tcl_Obj *CONST objv[]
4039 ){
4040   sqlite3 *db;
4041   int rc;
4042 
4043   if( objc!=2 ){
4044     Tcl_AppendResult(interp, "wrong # args: should be \"",
4045        Tcl_GetString(objv[0]), " DB", 0);
4046     return TCL_ERROR;
4047   }
4048   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4049   rc = sqlite3_extended_errcode(db);
4050   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
4051   return TCL_OK;
4052 }
4053 
4054 
4055 /*
4056 ** Usage: sqlite3_errcode DB
4057 **
4058 ** Return the string representation of the most recent sqlite3_* API
4059 ** error code. e.g. "SQLITE_ERROR".
4060 */
4061 static int SQLITE_TCLAPI test_errcode(
4062   void * clientData,
4063   Tcl_Interp *interp,
4064   int objc,
4065   Tcl_Obj *CONST objv[]
4066 ){
4067   sqlite3 *db;
4068   int rc;
4069 
4070   if( objc!=2 ){
4071     Tcl_AppendResult(interp, "wrong # args: should be \"",
4072        Tcl_GetString(objv[0]), " DB", 0);
4073     return TCL_ERROR;
4074   }
4075   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4076   rc = sqlite3_errcode(db);
4077   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
4078   return TCL_OK;
4079 }
4080 
4081 /*
4082 ** Usage:   sqlite3_errmsg DB
4083 **
4084 ** Returns the UTF-8 representation of the error message string for the
4085 ** most recent sqlite3_* API call.
4086 */
4087 static int SQLITE_TCLAPI test_errmsg(
4088   void * clientData,
4089   Tcl_Interp *interp,
4090   int objc,
4091   Tcl_Obj *CONST objv[]
4092 ){
4093   sqlite3 *db;
4094   const char *zErr;
4095 
4096   if( objc!=2 ){
4097     Tcl_AppendResult(interp, "wrong # args: should be \"",
4098        Tcl_GetString(objv[0]), " DB", 0);
4099     return TCL_ERROR;
4100   }
4101   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4102 
4103   zErr = sqlite3_errmsg(db);
4104   Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
4105   return TCL_OK;
4106 }
4107 
4108 /*
4109 ** Usage:   test_errmsg16 DB
4110 **
4111 ** Returns the UTF-16 representation of the error message string for the
4112 ** most recent sqlite3_* API call. This is a byte array object at the TCL
4113 ** level, and it includes the 0x00 0x00 terminator bytes at the end of the
4114 ** UTF-16 string.
4115 */
4116 static int SQLITE_TCLAPI test_errmsg16(
4117   void * clientData,
4118   Tcl_Interp *interp,
4119   int objc,
4120   Tcl_Obj *CONST objv[]
4121 ){
4122 #ifndef SQLITE_OMIT_UTF16
4123   sqlite3 *db;
4124   const void *zErr;
4125   const char *z;
4126   int bytes = 0;
4127 
4128   if( objc!=2 ){
4129     Tcl_AppendResult(interp, "wrong # args: should be \"",
4130        Tcl_GetString(objv[0]), " DB", 0);
4131     return TCL_ERROR;
4132   }
4133   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4134 
4135   zErr = sqlite3_errmsg16(db);
4136   if( zErr ){
4137     z = zErr;
4138     for(bytes=0; z[bytes] || z[bytes+1]; bytes+=2){}
4139   }
4140   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zErr, bytes));
4141 #endif /* SQLITE_OMIT_UTF16 */
4142   return TCL_OK;
4143 }
4144 
4145 /*
4146 ** Usage: sqlite3_prepare DB sql bytes ?tailvar?
4147 **
4148 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4149 ** database handle <DB>. The parameter <tailval> is the name of a global
4150 ** variable that is set to the unused portion of <sql> (if any). A
4151 ** STMT handle is returned.
4152 */
4153 static int SQLITE_TCLAPI test_prepare(
4154   void * clientData,
4155   Tcl_Interp *interp,
4156   int objc,
4157   Tcl_Obj *CONST objv[]
4158 ){
4159   sqlite3 *db;
4160   const char *zSql;
4161   int bytes;
4162   const char *zTail = 0;
4163   sqlite3_stmt *pStmt = 0;
4164   char zBuf[50];
4165   int rc;
4166 
4167   if( objc!=5 && objc!=4 ){
4168     Tcl_AppendResult(interp, "wrong # args: should be \"",
4169        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4170     return TCL_ERROR;
4171   }
4172   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4173   zSql = Tcl_GetString(objv[2]);
4174   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4175 
4176   rc = sqlite3_prepare(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4177   Tcl_ResetResult(interp);
4178   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4179   if( zTail && objc>=5 ){
4180     if( bytes>=0 ){
4181       bytes = bytes - (int)(zTail-zSql);
4182     }
4183     if( (int)strlen(zTail)<bytes ){
4184       bytes = (int)strlen(zTail);
4185     }
4186     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
4187   }
4188   if( rc!=SQLITE_OK ){
4189     assert( pStmt==0 );
4190     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4191     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4192     return TCL_ERROR;
4193   }
4194 
4195   if( pStmt ){
4196     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4197     Tcl_AppendResult(interp, zBuf, 0);
4198   }
4199   return TCL_OK;
4200 }
4201 
4202 /*
4203 ** Usage: sqlite3_prepare_v2 DB sql bytes ?tailvar?
4204 **
4205 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4206 ** database handle <DB>. The parameter <tailval> is the name of a global
4207 ** variable that is set to the unused portion of <sql> (if any). A
4208 ** STMT handle is returned.
4209 */
4210 static int SQLITE_TCLAPI test_prepare_v2(
4211   void * clientData,
4212   Tcl_Interp *interp,
4213   int objc,
4214   Tcl_Obj *CONST objv[]
4215 ){
4216   sqlite3 *db;
4217   const char *zSql;
4218   char *zCopy = 0;                /* malloc() copy of zSql */
4219   int bytes;
4220   const char *zTail = 0;
4221   const char **pzTail;
4222   sqlite3_stmt *pStmt = 0;
4223   char zBuf[50];
4224   int rc;
4225 
4226   if( objc!=5 && objc!=4 ){
4227     Tcl_AppendResult(interp, "wrong # args: should be \"",
4228        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
4229     return TCL_ERROR;
4230   }
4231   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4232   zSql = Tcl_GetString(objv[2]);
4233   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4234 
4235   /* Instead of using zSql directly, make a copy into a buffer obtained
4236   ** directly from malloc(). The idea is to make it easier for valgrind
4237   ** to spot buffer overreads.  */
4238   if( bytes>=0 ){
4239     zCopy = malloc(bytes);
4240     memcpy(zCopy, zSql, bytes);
4241   }else{
4242     int n = (int)strlen(zSql) + 1;
4243     zCopy = malloc(n);
4244     memcpy(zCopy, zSql, n);
4245   }
4246   pzTail = objc>=5 ? &zTail : 0;
4247   rc = sqlite3_prepare_v2(db, zCopy, bytes, &pStmt, pzTail);
4248   free(zCopy);
4249   zTail = &zSql[(zTail - zCopy)];
4250 
4251   assert(rc==SQLITE_OK || pStmt==0);
4252   Tcl_ResetResult(interp);
4253   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4254   if( rc==SQLITE_OK && zTail && objc>=5 ){
4255     if( bytes>=0 ){
4256       bytes = bytes - (int)(zTail-zSql);
4257     }
4258     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
4259   }
4260   if( rc!=SQLITE_OK ){
4261     assert( pStmt==0 );
4262     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4263     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4264     return TCL_ERROR;
4265   }
4266 
4267   if( pStmt ){
4268     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4269     Tcl_AppendResult(interp, zBuf, 0);
4270   }
4271   return TCL_OK;
4272 }
4273 
4274 /*
4275 ** Usage: sqlite3_prepare_v3 DB sql bytes flags ?tailvar?
4276 **
4277 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4278 ** database handle <DB> and flags <flags>. The parameter <tailval> is
4279 ** the name of a global variable that is set to the unused portion of
4280 ** <sql> (if any). A STMT handle is returned.
4281 */
4282 static int SQLITE_TCLAPI test_prepare_v3(
4283   void * clientData,
4284   Tcl_Interp *interp,
4285   int objc,
4286   Tcl_Obj *CONST objv[]
4287 ){
4288   sqlite3 *db;
4289   const char *zSql;
4290   char *zCopy = 0;                /* malloc() copy of zSql */
4291   int bytes, flags;
4292   const char *zTail = 0;
4293   const char **pzTail;
4294   sqlite3_stmt *pStmt = 0;
4295   char zBuf[50];
4296   int rc;
4297 
4298   if( objc!=6 && objc!=5 ){
4299     Tcl_AppendResult(interp, "wrong # args: should be \"",
4300        Tcl_GetString(objv[0]), " DB sql bytes flags tailvar", 0);
4301     return TCL_ERROR;
4302   }
4303   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4304   zSql = Tcl_GetString(objv[2]);
4305   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4306   if( Tcl_GetIntFromObj(interp, objv[4], &flags) ) return TCL_ERROR;
4307 
4308   /* Instead of using zSql directly, make a copy into a buffer obtained
4309   ** directly from malloc(). The idea is to make it easier for valgrind
4310   ** to spot buffer overreads.  */
4311   if( bytes>=0 ){
4312     zCopy = malloc(bytes);
4313     memcpy(zCopy, zSql, bytes);
4314   }else{
4315     int n = (int)strlen(zSql) + 1;
4316     zCopy = malloc(n);
4317     memcpy(zCopy, zSql, n);
4318   }
4319   pzTail = objc>=6 ? &zTail : 0;
4320   rc = sqlite3_prepare_v3(db, zCopy, bytes, (unsigned int)flags,&pStmt,pzTail);
4321   free(zCopy);
4322   zTail = &zSql[(zTail - zCopy)];
4323 
4324   assert(rc==SQLITE_OK || pStmt==0);
4325   Tcl_ResetResult(interp);
4326   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4327   if( rc==SQLITE_OK && zTail && objc>=6 ){
4328     if( bytes>=0 ){
4329       bytes = bytes - (int)(zTail-zSql);
4330     }
4331     Tcl_ObjSetVar2(interp, objv[5], 0, Tcl_NewStringObj(zTail, bytes), 0);
4332   }
4333   if( rc!=SQLITE_OK ){
4334     assert( pStmt==0 );
4335     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4336     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4337     return TCL_ERROR;
4338   }
4339 
4340   if( pStmt ){
4341     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4342     Tcl_AppendResult(interp, zBuf, 0);
4343   }
4344   return TCL_OK;
4345 }
4346 
4347 /*
4348 ** Usage: sqlite3_prepare_tkt3134 DB
4349 **
4350 ** Generate a prepared statement for a zero-byte string as a test
4351 ** for ticket #3134.  The string should be preceded by a zero byte.
4352 */
4353 static int SQLITE_TCLAPI test_prepare_tkt3134(
4354   void * clientData,
4355   Tcl_Interp *interp,
4356   int objc,
4357   Tcl_Obj *CONST objv[]
4358 ){
4359   sqlite3 *db;
4360   static const char zSql[] = "\000SELECT 1";
4361   sqlite3_stmt *pStmt = 0;
4362   char zBuf[50];
4363   int rc;
4364 
4365   if( objc!=2 ){
4366     Tcl_AppendResult(interp, "wrong # args: should be \"",
4367        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
4368     return TCL_ERROR;
4369   }
4370   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4371   rc = sqlite3_prepare_v2(db, &zSql[1], 0, &pStmt, 0);
4372   assert(rc==SQLITE_OK || pStmt==0);
4373   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4374   if( rc!=SQLITE_OK ){
4375     assert( pStmt==0 );
4376     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4377     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4378     return TCL_ERROR;
4379   }
4380 
4381   if( pStmt ){
4382     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4383     Tcl_AppendResult(interp, zBuf, 0);
4384   }
4385   return TCL_OK;
4386 }
4387 
4388 /*
4389 ** Usage: sqlite3_prepare16 DB sql bytes tailvar
4390 **
4391 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4392 ** database handle <DB>. The parameter <tailval> is the name of a global
4393 ** variable that is set to the unused portion of <sql> (if any). A
4394 ** STMT handle is returned.
4395 */
4396 static int SQLITE_TCLAPI test_prepare16(
4397   void * clientData,
4398   Tcl_Interp *interp,
4399   int objc,
4400   Tcl_Obj *CONST objv[]
4401 ){
4402 #ifndef SQLITE_OMIT_UTF16
4403   sqlite3 *db;
4404   const void *zSql;
4405   const void *zTail = 0;
4406   Tcl_Obj *pTail = 0;
4407   sqlite3_stmt *pStmt = 0;
4408   char zBuf[50];
4409   int rc;
4410   int bytes;                /* The integer specified as arg 3 */
4411   int objlen;               /* The byte-array length of arg 2 */
4412 
4413   if( objc!=5 && objc!=4 ){
4414     Tcl_AppendResult(interp, "wrong # args: should be \"",
4415        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4416     return TCL_ERROR;
4417   }
4418   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4419   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
4420   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4421 
4422   rc = sqlite3_prepare16(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4423   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4424   if( rc ){
4425     return TCL_ERROR;
4426   }
4427 
4428   if( objc>=5 ){
4429     if( zTail ){
4430       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
4431     }else{
4432       objlen = 0;
4433     }
4434     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
4435     Tcl_IncrRefCount(pTail);
4436     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
4437     Tcl_DecrRefCount(pTail);
4438   }
4439 
4440   if( pStmt ){
4441     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4442   }
4443   Tcl_AppendResult(interp, zBuf, 0);
4444 #endif /* SQLITE_OMIT_UTF16 */
4445   return TCL_OK;
4446 }
4447 
4448 /*
4449 ** Usage: sqlite3_prepare16_v2 DB sql bytes ?tailvar?
4450 **
4451 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4452 ** database handle <DB>. The parameter <tailval> is the name of a global
4453 ** variable that is set to the unused portion of <sql> (if any). A
4454 ** STMT handle is returned.
4455 */
4456 static int SQLITE_TCLAPI test_prepare16_v2(
4457   void * clientData,
4458   Tcl_Interp *interp,
4459   int objc,
4460   Tcl_Obj *CONST objv[]
4461 ){
4462 #ifndef SQLITE_OMIT_UTF16
4463   sqlite3 *db;
4464   const void *zSql;
4465   const void *zTail = 0;
4466   Tcl_Obj *pTail = 0;
4467   sqlite3_stmt *pStmt = 0;
4468   char zBuf[50];
4469   int rc;
4470   int bytes;                /* The integer specified as arg 3 */
4471   int objlen;               /* The byte-array length of arg 2 */
4472 
4473   if( objc!=5 && objc!=4 ){
4474     Tcl_AppendResult(interp, "wrong # args: should be \"",
4475        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4476     return TCL_ERROR;
4477   }
4478   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4479   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
4480   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4481 
4482   rc = sqlite3_prepare16_v2(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4483   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4484   if( rc ){
4485     return TCL_ERROR;
4486   }
4487 
4488   if( objc>=5 ){
4489     if( zTail ){
4490       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
4491     }else{
4492       objlen = 0;
4493     }
4494     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
4495     Tcl_IncrRefCount(pTail);
4496     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
4497     Tcl_DecrRefCount(pTail);
4498   }
4499 
4500   if( pStmt ){
4501     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4502   }
4503   Tcl_AppendResult(interp, zBuf, 0);
4504 #endif /* SQLITE_OMIT_UTF16 */
4505   return TCL_OK;
4506 }
4507 
4508 /*
4509 ** Usage: sqlite3_open filename ?options-list?
4510 */
4511 static int SQLITE_TCLAPI test_open(
4512   void * clientData,
4513   Tcl_Interp *interp,
4514   int objc,
4515   Tcl_Obj *CONST objv[]
4516 ){
4517   const char *zFilename;
4518   sqlite3 *db;
4519   char zBuf[100];
4520 
4521   if( objc!=3 && objc!=2 && objc!=1 ){
4522     Tcl_AppendResult(interp, "wrong # args: should be \"",
4523        Tcl_GetString(objv[0]), " filename options-list", 0);
4524     return TCL_ERROR;
4525   }
4526 
4527   zFilename = objc>1 ? Tcl_GetString(objv[1]) : 0;
4528   sqlite3_open(zFilename, &db);
4529 
4530   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4531   Tcl_AppendResult(interp, zBuf, 0);
4532   return TCL_OK;
4533 }
4534 
4535 /*
4536 ** Usage: sqlite3_open_v2 FILENAME FLAGS VFS
4537 */
4538 static int SQLITE_TCLAPI test_open_v2(
4539   void * clientData,
4540   Tcl_Interp *interp,
4541   int objc,
4542   Tcl_Obj *CONST objv[]
4543 ){
4544   const char *zFilename;
4545   const char *zVfs;
4546   int flags = 0;
4547   sqlite3 *db;
4548   int rc;
4549   char zBuf[100];
4550 
4551   int nFlag;
4552   Tcl_Obj **apFlag;
4553   int i;
4554 
4555   if( objc!=4 ){
4556     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME FLAGS VFS");
4557     return TCL_ERROR;
4558   }
4559   zFilename = Tcl_GetString(objv[1]);
4560   zVfs = Tcl_GetString(objv[3]);
4561   if( zVfs[0]==0x00 ) zVfs = 0;
4562 
4563   rc = Tcl_ListObjGetElements(interp, objv[2], &nFlag, &apFlag);
4564   if( rc!=TCL_OK ) return rc;
4565   for(i=0; i<nFlag; i++){
4566     int iFlag;
4567     struct OpenFlag {
4568       const char *zFlag;
4569       int flag;
4570     } aFlag[] = {
4571       { "SQLITE_OPEN_READONLY", SQLITE_OPEN_READONLY },
4572       { "SQLITE_OPEN_READWRITE", SQLITE_OPEN_READWRITE },
4573       { "SQLITE_OPEN_CREATE", SQLITE_OPEN_CREATE },
4574       { "SQLITE_OPEN_DELETEONCLOSE", SQLITE_OPEN_DELETEONCLOSE },
4575       { "SQLITE_OPEN_EXCLUSIVE", SQLITE_OPEN_EXCLUSIVE },
4576       { "SQLITE_OPEN_AUTOPROXY", SQLITE_OPEN_AUTOPROXY },
4577       { "SQLITE_OPEN_MAIN_DB", SQLITE_OPEN_MAIN_DB },
4578       { "SQLITE_OPEN_TEMP_DB", SQLITE_OPEN_TEMP_DB },
4579       { "SQLITE_OPEN_TRANSIENT_DB", SQLITE_OPEN_TRANSIENT_DB },
4580       { "SQLITE_OPEN_MAIN_JOURNAL", SQLITE_OPEN_MAIN_JOURNAL },
4581       { "SQLITE_OPEN_TEMP_JOURNAL", SQLITE_OPEN_TEMP_JOURNAL },
4582       { "SQLITE_OPEN_SUBJOURNAL", SQLITE_OPEN_SUBJOURNAL },
4583       { "SQLITE_OPEN_MASTER_JOURNAL", SQLITE_OPEN_MASTER_JOURNAL },
4584       { "SQLITE_OPEN_NOMUTEX", SQLITE_OPEN_NOMUTEX },
4585       { "SQLITE_OPEN_FULLMUTEX", SQLITE_OPEN_FULLMUTEX },
4586       { "SQLITE_OPEN_SHAREDCACHE", SQLITE_OPEN_SHAREDCACHE },
4587       { "SQLITE_OPEN_PRIVATECACHE", SQLITE_OPEN_PRIVATECACHE },
4588       { "SQLITE_OPEN_WAL", SQLITE_OPEN_WAL },
4589       { "SQLITE_OPEN_URI", SQLITE_OPEN_URI },
4590       { 0, 0 }
4591     };
4592     rc = Tcl_GetIndexFromObjStruct(interp, apFlag[i], aFlag, sizeof(aFlag[0]),
4593         "flag", 0, &iFlag
4594     );
4595     if( rc!=TCL_OK ) return rc;
4596     flags |= aFlag[iFlag].flag;
4597   }
4598 
4599   rc = sqlite3_open_v2(zFilename, &db, flags, zVfs);
4600   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4601   Tcl_AppendResult(interp, zBuf, 0);
4602   return TCL_OK;
4603 }
4604 
4605 /*
4606 ** Usage: sqlite3_open16 filename options
4607 */
4608 static int SQLITE_TCLAPI test_open16(
4609   void * clientData,
4610   Tcl_Interp *interp,
4611   int objc,
4612   Tcl_Obj *CONST objv[]
4613 ){
4614 #ifndef SQLITE_OMIT_UTF16
4615   const void *zFilename;
4616   sqlite3 *db;
4617   char zBuf[100];
4618 
4619   if( objc!=3 ){
4620     Tcl_AppendResult(interp, "wrong # args: should be \"",
4621        Tcl_GetString(objv[0]), " filename options-list", 0);
4622     return TCL_ERROR;
4623   }
4624 
4625   zFilename = Tcl_GetByteArrayFromObj(objv[1], 0);
4626   sqlite3_open16(zFilename, &db);
4627 
4628   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4629   Tcl_AppendResult(interp, zBuf, 0);
4630 #endif /* SQLITE_OMIT_UTF16 */
4631   return TCL_OK;
4632 }
4633 
4634 /*
4635 ** Usage: sqlite3_complete16 <UTF-16 string>
4636 **
4637 ** Return 1 if the supplied argument is a complete SQL statement, or zero
4638 ** otherwise.
4639 */
4640 static int SQLITE_TCLAPI test_complete16(
4641   void * clientData,
4642   Tcl_Interp *interp,
4643   int objc,
4644   Tcl_Obj *CONST objv[]
4645 ){
4646 #if !defined(SQLITE_OMIT_COMPLETE) && !defined(SQLITE_OMIT_UTF16)
4647   char *zBuf;
4648 
4649   if( objc!=2 ){
4650     Tcl_WrongNumArgs(interp, 1, objv, "<utf-16 sql>");
4651     return TCL_ERROR;
4652   }
4653 
4654   zBuf = (char*)Tcl_GetByteArrayFromObj(objv[1], 0);
4655   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_complete16(zBuf)));
4656 #endif /* SQLITE_OMIT_COMPLETE && SQLITE_OMIT_UTF16 */
4657   return TCL_OK;
4658 }
4659 
4660 /*
4661 ** Usage: sqlite3_normalize SQL
4662 **
4663 ** Return the normalized value for an SQL statement.
4664 */
4665 static int SQLITE_TCLAPI test_normalize(
4666   void * clientData,
4667   Tcl_Interp *interp,
4668   int objc,
4669   Tcl_Obj *CONST objv[]
4670 ){
4671   char *zSql;
4672   char *zNorm;
4673   extern char *sqlite3_normalize(const char*);
4674 
4675   if( objc!=2 ){
4676     Tcl_WrongNumArgs(interp, 1, objv, "SQL");
4677     return TCL_ERROR;
4678   }
4679 
4680   zSql = (char*)Tcl_GetString(objv[1]);
4681   zNorm = sqlite3_normalize(zSql);
4682   if( zNorm ){
4683     Tcl_SetObjResult(interp, Tcl_NewStringObj(zNorm, -1));
4684     sqlite3_free(zNorm);
4685   }
4686   return TCL_OK;
4687 }
4688 
4689 /*
4690 ** Usage: sqlite3_step STMT
4691 **
4692 ** Advance the statement to the next row.
4693 */
4694 static int SQLITE_TCLAPI test_step(
4695   void * clientData,
4696   Tcl_Interp *interp,
4697   int objc,
4698   Tcl_Obj *CONST objv[]
4699 ){
4700   sqlite3_stmt *pStmt;
4701   int rc;
4702 
4703   if( objc!=2 ){
4704     Tcl_AppendResult(interp, "wrong # args: should be \"",
4705        Tcl_GetString(objv[0]), " STMT", 0);
4706     return TCL_ERROR;
4707   }
4708 
4709   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4710   rc = sqlite3_step(pStmt);
4711 
4712   /* if( rc!=SQLITE_DONE && rc!=SQLITE_ROW ) return TCL_ERROR; */
4713   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
4714   return TCL_OK;
4715 }
4716 
4717 static int SQLITE_TCLAPI test_sql(
4718   void * clientData,
4719   Tcl_Interp *interp,
4720   int objc,
4721   Tcl_Obj *CONST objv[]
4722 ){
4723   sqlite3_stmt *pStmt;
4724 
4725   if( objc!=2 ){
4726     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4727     return TCL_ERROR;
4728   }
4729 
4730   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4731   Tcl_SetResult(interp, (char *)sqlite3_sql(pStmt), TCL_VOLATILE);
4732   return TCL_OK;
4733 }
4734 static int SQLITE_TCLAPI test_ex_sql(
4735   void * clientData,
4736   Tcl_Interp *interp,
4737   int objc,
4738   Tcl_Obj *CONST objv[]
4739 ){
4740   sqlite3_stmt *pStmt;
4741   char *z;
4742 
4743   if( objc!=2 ){
4744     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4745     return TCL_ERROR;
4746   }
4747 
4748   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4749   z = sqlite3_expanded_sql(pStmt);
4750   Tcl_SetResult(interp, z, TCL_VOLATILE);
4751   sqlite3_free(z);
4752   return TCL_OK;
4753 }
4754 #ifdef SQLITE_ENABLE_NORMALIZE
4755 static int SQLITE_TCLAPI test_norm_sql(
4756   void * clientData,
4757   Tcl_Interp *interp,
4758   int objc,
4759   Tcl_Obj *CONST objv[]
4760 ){
4761   sqlite3_stmt *pStmt;
4762 
4763   if( objc!=2 ){
4764     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4765     return TCL_ERROR;
4766   }
4767 
4768   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4769   Tcl_SetResult(interp, (char *)sqlite3_normalized_sql(pStmt), TCL_VOLATILE);
4770   return TCL_OK;
4771 }
4772 #endif /* SQLITE_ENABLE_NORMALIZE */
4773 
4774 /*
4775 ** Usage: sqlite3_column_count STMT
4776 **
4777 ** Return the number of columns returned by the sql statement STMT.
4778 */
4779 static int SQLITE_TCLAPI test_column_count(
4780   void * clientData,
4781   Tcl_Interp *interp,
4782   int objc,
4783   Tcl_Obj *CONST objv[]
4784 ){
4785   sqlite3_stmt *pStmt;
4786 
4787   if( objc!=2 ){
4788     Tcl_AppendResult(interp, "wrong # args: should be \"",
4789        Tcl_GetString(objv[0]), " STMT column", 0);
4790     return TCL_ERROR;
4791   }
4792 
4793   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4794 
4795   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_column_count(pStmt)));
4796   return TCL_OK;
4797 }
4798 
4799 /*
4800 ** Usage: sqlite3_column_type STMT column
4801 **
4802 ** Return the type of the data in column 'column' of the current row.
4803 */
4804 static int SQLITE_TCLAPI test_column_type(
4805   void * clientData,
4806   Tcl_Interp *interp,
4807   int objc,
4808   Tcl_Obj *CONST objv[]
4809 ){
4810   sqlite3_stmt *pStmt;
4811   int col;
4812   int tp;
4813 
4814   if( objc!=3 ){
4815     Tcl_AppendResult(interp, "wrong # args: should be \"",
4816        Tcl_GetString(objv[0]), " STMT column", 0);
4817     return TCL_ERROR;
4818   }
4819 
4820   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4821   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4822 
4823   tp = sqlite3_column_type(pStmt, col);
4824   switch( tp ){
4825     case SQLITE_INTEGER:
4826       Tcl_SetResult(interp, "INTEGER", TCL_STATIC);
4827       break;
4828     case SQLITE_NULL:
4829       Tcl_SetResult(interp, "NULL", TCL_STATIC);
4830       break;
4831     case SQLITE_FLOAT:
4832       Tcl_SetResult(interp, "FLOAT", TCL_STATIC);
4833       break;
4834     case SQLITE_TEXT:
4835       Tcl_SetResult(interp, "TEXT", TCL_STATIC);
4836       break;
4837     case SQLITE_BLOB:
4838       Tcl_SetResult(interp, "BLOB", TCL_STATIC);
4839       break;
4840     default:
4841       assert(0);
4842   }
4843 
4844   return TCL_OK;
4845 }
4846 
4847 /*
4848 ** Usage: sqlite3_column_int64 STMT column
4849 **
4850 ** Return the data in column 'column' of the current row cast as an
4851 ** wide (64-bit) integer.
4852 */
4853 static int SQLITE_TCLAPI test_column_int64(
4854   void * clientData,
4855   Tcl_Interp *interp,
4856   int objc,
4857   Tcl_Obj *CONST objv[]
4858 ){
4859   sqlite3_stmt *pStmt;
4860   int col;
4861   i64 iVal;
4862 
4863   if( objc!=3 ){
4864     Tcl_AppendResult(interp, "wrong # args: should be \"",
4865        Tcl_GetString(objv[0]), " STMT column", 0);
4866     return TCL_ERROR;
4867   }
4868 
4869   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4870   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4871 
4872   iVal = sqlite3_column_int64(pStmt, col);
4873   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(iVal));
4874   return TCL_OK;
4875 }
4876 
4877 /*
4878 ** Usage: sqlite3_column_blob STMT column
4879 */
4880 static int SQLITE_TCLAPI test_column_blob(
4881   void * clientData,
4882   Tcl_Interp *interp,
4883   int objc,
4884   Tcl_Obj *CONST objv[]
4885 ){
4886   sqlite3_stmt *pStmt;
4887   int col;
4888 
4889   int len;
4890   const void *pBlob;
4891 
4892   if( objc!=3 ){
4893     Tcl_AppendResult(interp, "wrong # args: should be \"",
4894        Tcl_GetString(objv[0]), " STMT column", 0);
4895     return TCL_ERROR;
4896   }
4897 
4898   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4899   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4900 
4901   len = sqlite3_column_bytes(pStmt, col);
4902   pBlob = sqlite3_column_blob(pStmt, col);
4903   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pBlob, len));
4904   return TCL_OK;
4905 }
4906 
4907 /*
4908 ** Usage: sqlite3_column_double STMT column
4909 **
4910 ** Return the data in column 'column' of the current row cast as a double.
4911 */
4912 static int SQLITE_TCLAPI test_column_double(
4913   void * clientData,
4914   Tcl_Interp *interp,
4915   int objc,
4916   Tcl_Obj *CONST objv[]
4917 ){
4918   sqlite3_stmt *pStmt;
4919   int col;
4920   double rVal;
4921 
4922   if( objc!=3 ){
4923     Tcl_AppendResult(interp, "wrong # args: should be \"",
4924        Tcl_GetString(objv[0]), " STMT column", 0);
4925     return TCL_ERROR;
4926   }
4927 
4928   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4929   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4930 
4931   rVal = sqlite3_column_double(pStmt, col);
4932   Tcl_SetObjResult(interp, Tcl_NewDoubleObj(rVal));
4933   return TCL_OK;
4934 }
4935 
4936 /*
4937 ** Usage: sqlite3_data_count STMT
4938 **
4939 ** Return the number of columns returned by the sql statement STMT.
4940 */
4941 static int SQLITE_TCLAPI test_data_count(
4942   void * clientData,
4943   Tcl_Interp *interp,
4944   int objc,
4945   Tcl_Obj *CONST objv[]
4946 ){
4947   sqlite3_stmt *pStmt;
4948 
4949   if( objc!=2 ){
4950     Tcl_AppendResult(interp, "wrong # args: should be \"",
4951        Tcl_GetString(objv[0]), " STMT column", 0);
4952     return TCL_ERROR;
4953   }
4954 
4955   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4956 
4957   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_data_count(pStmt)));
4958   return TCL_OK;
4959 }
4960 
4961 /*
4962 ** Usage: sqlite3_column_text STMT column
4963 **
4964 ** Usage: sqlite3_column_decltype STMT column
4965 **
4966 ** Usage: sqlite3_column_name STMT column
4967 */
4968 static int SQLITE_TCLAPI test_stmt_utf8(
4969   void * clientData,        /* Pointer to SQLite API function to be invoke */
4970   Tcl_Interp *interp,
4971   int objc,
4972   Tcl_Obj *CONST objv[]
4973 ){
4974   sqlite3_stmt *pStmt;
4975   int col;
4976   const char *(*xFunc)(sqlite3_stmt*, int);
4977   const char *zRet;
4978 
4979   xFunc = (const char *(*)(sqlite3_stmt*, int))clientData;
4980   if( objc!=3 ){
4981     Tcl_AppendResult(interp, "wrong # args: should be \"",
4982        Tcl_GetString(objv[0]), " STMT column", 0);
4983     return TCL_ERROR;
4984   }
4985 
4986   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4987   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4988   zRet = xFunc(pStmt, col);
4989   if( zRet ){
4990     Tcl_SetResult(interp, (char *)zRet, 0);
4991   }
4992   return TCL_OK;
4993 }
4994 
4995 static int SQLITE_TCLAPI test_global_recover(
4996   void * clientData,
4997   Tcl_Interp *interp,
4998   int objc,
4999   Tcl_Obj *CONST objv[]
5000 ){
5001 #ifndef SQLITE_OMIT_DEPRECATED
5002   int rc;
5003   if( objc!=1 ){
5004     Tcl_WrongNumArgs(interp, 1, objv, "");
5005     return TCL_ERROR;
5006   }
5007   rc = sqlite3_global_recover();
5008   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5009 #endif
5010   return TCL_OK;
5011 }
5012 
5013 /*
5014 ** Usage: sqlite3_column_text STMT column
5015 **
5016 ** Usage: sqlite3_column_decltype STMT column
5017 **
5018 ** Usage: sqlite3_column_name STMT column
5019 */
5020 static int SQLITE_TCLAPI test_stmt_utf16(
5021   void * clientData,     /* Pointer to SQLite API function to be invoked */
5022   Tcl_Interp *interp,
5023   int objc,
5024   Tcl_Obj *CONST objv[]
5025 ){
5026 #ifndef SQLITE_OMIT_UTF16
5027   sqlite3_stmt *pStmt;
5028   int col;
5029   Tcl_Obj *pRet;
5030   const void *zName16;
5031   const void *(*xFunc)(sqlite3_stmt*, int);
5032 
5033   xFunc = (const void *(*)(sqlite3_stmt*, int))clientData;
5034   if( objc!=3 ){
5035     Tcl_AppendResult(interp, "wrong # args: should be \"",
5036        Tcl_GetString(objv[0]), " STMT column", 0);
5037     return TCL_ERROR;
5038   }
5039 
5040   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
5041   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
5042 
5043   zName16 = xFunc(pStmt, col);
5044   if( zName16 ){
5045     int n;
5046     const char *z = zName16;
5047     for(n=0; z[n] || z[n+1]; n+=2){}
5048     pRet = Tcl_NewByteArrayObj(zName16, n+2);
5049     Tcl_SetObjResult(interp, pRet);
5050   }
5051 #endif /* SQLITE_OMIT_UTF16 */
5052 
5053   return TCL_OK;
5054 }
5055 
5056 /*
5057 ** Usage: sqlite3_column_int STMT column
5058 **
5059 ** Usage: sqlite3_column_bytes STMT column
5060 **
5061 ** Usage: sqlite3_column_bytes16 STMT column
5062 **
5063 */
5064 static int SQLITE_TCLAPI test_stmt_int(
5065   void * clientData,    /* Pointer to SQLite API function to be invoked */
5066   Tcl_Interp *interp,
5067   int objc,
5068   Tcl_Obj *CONST objv[]
5069 ){
5070   sqlite3_stmt *pStmt;
5071   int col;
5072   int (*xFunc)(sqlite3_stmt*, int);
5073 
5074   xFunc = (int (*)(sqlite3_stmt*, int))clientData;
5075   if( objc!=3 ){
5076     Tcl_AppendResult(interp, "wrong # args: should be \"",
5077        Tcl_GetString(objv[0]), " STMT column", 0);
5078     return TCL_ERROR;
5079   }
5080 
5081   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
5082   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
5083 
5084   Tcl_SetObjResult(interp, Tcl_NewIntObj(xFunc(pStmt, col)));
5085   return TCL_OK;
5086 }
5087 
5088 /*
5089 ** Usage:  sqlite_set_magic  DB  MAGIC-NUMBER
5090 **
5091 ** Set the db->magic value.  This is used to test error recovery logic.
5092 */
5093 static int SQLITE_TCLAPI sqlite_set_magic(
5094   void * clientData,
5095   Tcl_Interp *interp,
5096   int argc,
5097   char **argv
5098 ){
5099   sqlite3 *db;
5100   if( argc!=3 ){
5101     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5102          " DB MAGIC", 0);
5103     return TCL_ERROR;
5104   }
5105   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5106   if( strcmp(argv[2], "SQLITE_MAGIC_OPEN")==0 ){
5107     db->magic = SQLITE_MAGIC_OPEN;
5108   }else if( strcmp(argv[2], "SQLITE_MAGIC_CLOSED")==0 ){
5109     db->magic = SQLITE_MAGIC_CLOSED;
5110   }else if( strcmp(argv[2], "SQLITE_MAGIC_BUSY")==0 ){
5111     db->magic = SQLITE_MAGIC_BUSY;
5112   }else if( strcmp(argv[2], "SQLITE_MAGIC_ERROR")==0 ){
5113     db->magic = SQLITE_MAGIC_ERROR;
5114   }else if( Tcl_GetInt(interp, argv[2], (int*)&db->magic) ){
5115     return TCL_ERROR;
5116   }
5117   return TCL_OK;
5118 }
5119 
5120 /*
5121 ** Usage:  sqlite3_interrupt  DB
5122 **
5123 ** Trigger an interrupt on DB
5124 */
5125 static int SQLITE_TCLAPI test_interrupt(
5126   void * clientData,
5127   Tcl_Interp *interp,
5128   int argc,
5129   char **argv
5130 ){
5131   sqlite3 *db;
5132   if( argc!=2 ){
5133     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB", 0);
5134     return TCL_ERROR;
5135   }
5136   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5137   sqlite3_interrupt(db);
5138   return TCL_OK;
5139 }
5140 
5141 /*
5142 ** Usage: sqlite_delete_function DB function-name
5143 **
5144 ** Delete the user function 'function-name' from database handle DB. It
5145 ** is assumed that the user function was created as UTF8, any number of
5146 ** arguments (the way the TCL interface does it).
5147 */
5148 static int SQLITE_TCLAPI delete_function(
5149   void * clientData,
5150   Tcl_Interp *interp,
5151   int argc,
5152   char **argv
5153 ){
5154   int rc;
5155   sqlite3 *db;
5156   if( argc!=3 ){
5157     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5158         " DB function-name", 0);
5159     return TCL_ERROR;
5160   }
5161   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5162   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0, 0, 0, 0);
5163   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5164   return TCL_OK;
5165 }
5166 
5167 /*
5168 ** Usage: sqlite_delete_collation DB collation-name
5169 **
5170 ** Delete the collation sequence 'collation-name' from database handle
5171 ** DB. It is assumed that the collation sequence was created as UTF8 (the
5172 ** way the TCL interface does it).
5173 */
5174 static int SQLITE_TCLAPI delete_collation(
5175   void * clientData,
5176   Tcl_Interp *interp,
5177   int argc,
5178   char **argv
5179 ){
5180   int rc;
5181   sqlite3 *db;
5182   if( argc!=3 ){
5183     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5184         " DB function-name", 0);
5185     return TCL_ERROR;
5186   }
5187   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5188   rc = sqlite3_create_collation(db, argv[2], SQLITE_UTF8, 0, 0);
5189   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5190   return TCL_OK;
5191 }
5192 
5193 /*
5194 ** Usage: sqlite3_get_autocommit DB
5195 **
5196 ** Return true if the database DB is currently in auto-commit mode.
5197 ** Return false if not.
5198 */
5199 static int SQLITE_TCLAPI get_autocommit(
5200   void * clientData,
5201   Tcl_Interp *interp,
5202   int argc,
5203   char **argv
5204 ){
5205   char zBuf[30];
5206   sqlite3 *db;
5207   if( argc!=2 ){
5208     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5209         " DB", 0);
5210     return TCL_ERROR;
5211   }
5212   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5213   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", sqlite3_get_autocommit(db));
5214   Tcl_AppendResult(interp, zBuf, 0);
5215   return TCL_OK;
5216 }
5217 
5218 /*
5219 ** Usage: sqlite3_busy_timeout DB MS
5220 **
5221 ** Set the busy timeout.  This is more easily done using the timeout
5222 ** method of the TCL interface.  But we need a way to test the case
5223 ** where it returns SQLITE_MISUSE.
5224 */
5225 static int SQLITE_TCLAPI test_busy_timeout(
5226   void * clientData,
5227   Tcl_Interp *interp,
5228   int argc,
5229   char **argv
5230 ){
5231   int rc, ms;
5232   sqlite3 *db;
5233   if( argc!=3 ){
5234     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5235         " DB", 0);
5236     return TCL_ERROR;
5237   }
5238   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5239   if( Tcl_GetInt(interp, argv[2], &ms) ) return TCL_ERROR;
5240   rc = sqlite3_busy_timeout(db, ms);
5241   Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
5242   return TCL_OK;
5243 }
5244 
5245 /*
5246 ** Usage:  tcl_variable_type VARIABLENAME
5247 **
5248 ** Return the name of the internal representation for the
5249 ** value of the given variable.
5250 */
5251 static int SQLITE_TCLAPI tcl_variable_type(
5252   void * clientData,
5253   Tcl_Interp *interp,
5254   int objc,
5255   Tcl_Obj *CONST objv[]
5256 ){
5257   Tcl_Obj *pVar;
5258   if( objc!=2 ){
5259     Tcl_WrongNumArgs(interp, 1, objv, "VARIABLE");
5260     return TCL_ERROR;
5261   }
5262   pVar = Tcl_GetVar2Ex(interp, Tcl_GetString(objv[1]), 0, TCL_LEAVE_ERR_MSG);
5263   if( pVar==0 ) return TCL_ERROR;
5264   if( pVar->typePtr ){
5265     Tcl_SetObjResult(interp, Tcl_NewStringObj(pVar->typePtr->name, -1));
5266   }
5267   return TCL_OK;
5268 }
5269 
5270 /*
5271 ** Usage:  sqlite3_release_memory ?N?
5272 **
5273 ** Attempt to release memory currently held but not actually required.
5274 ** The integer N is the number of bytes we are trying to release.  The
5275 ** return value is the amount of memory actually released.
5276 */
5277 static int SQLITE_TCLAPI test_release_memory(
5278   void * clientData,
5279   Tcl_Interp *interp,
5280   int objc,
5281   Tcl_Obj *CONST objv[]
5282 ){
5283 #if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) && !defined(SQLITE_OMIT_DISKIO)
5284   int N;
5285   int amt;
5286   if( objc!=1 && objc!=2 ){
5287     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
5288     return TCL_ERROR;
5289   }
5290   if( objc==2 ){
5291     if( Tcl_GetIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
5292   }else{
5293     N = -1;
5294   }
5295   amt = sqlite3_release_memory(N);
5296   Tcl_SetObjResult(interp, Tcl_NewIntObj(amt));
5297 #endif
5298   return TCL_OK;
5299 }
5300 
5301 
5302 /*
5303 ** Usage:  sqlite3_db_release_memory DB
5304 **
5305 ** Attempt to release memory currently held by database DB.  Return the
5306 ** result code (which in the current implementation is always zero).
5307 */
5308 static int SQLITE_TCLAPI test_db_release_memory(
5309   void * clientData,
5310   Tcl_Interp *interp,
5311   int objc,
5312   Tcl_Obj *CONST objv[]
5313 ){
5314   sqlite3 *db;
5315   int rc;
5316   if( objc!=2 ){
5317     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5318     return TCL_ERROR;
5319   }
5320   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5321   rc = sqlite3_db_release_memory(db);
5322   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5323   return TCL_OK;
5324 }
5325 
5326 /*
5327 ** Usage:  sqlite3_db_cacheflush DB
5328 **
5329 ** Attempt to flush any dirty pages to disk.
5330 */
5331 static int SQLITE_TCLAPI test_db_cacheflush(
5332   void * clientData,
5333   Tcl_Interp *interp,
5334   int objc,
5335   Tcl_Obj *CONST objv[]
5336 ){
5337   sqlite3 *db;
5338   int rc;
5339   if( objc!=2 ){
5340     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5341     return TCL_ERROR;
5342   }
5343   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5344   rc = sqlite3_db_cacheflush(db);
5345   if( rc ){
5346     Tcl_SetResult(interp, (char *)sqlite3ErrStr(rc), TCL_STATIC);
5347     return TCL_ERROR;
5348   }
5349 
5350   Tcl_ResetResult(interp);
5351   return TCL_OK;
5352 }
5353 
5354 /*
5355 ** Usage:  sqlite3_system_errno DB
5356 **
5357 ** Return the low-level system errno value.
5358 */
5359 static int SQLITE_TCLAPI test_system_errno(
5360   void * clientData,
5361   Tcl_Interp *interp,
5362   int objc,
5363   Tcl_Obj *CONST objv[]
5364 ){
5365   sqlite3 *db;
5366   int iErrno;
5367   if( objc!=2 ){
5368     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5369     return TCL_ERROR;
5370   }
5371   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5372   iErrno = sqlite3_system_errno(db);
5373   Tcl_SetObjResult(interp, Tcl_NewIntObj(iErrno));
5374   return TCL_OK;
5375 }
5376 
5377 /*
5378 ** Usage:  sqlite3_db_filename DB DBNAME
5379 **
5380 ** Return the name of a file associated with a database.
5381 */
5382 static int SQLITE_TCLAPI test_db_filename(
5383   void * clientData,
5384   Tcl_Interp *interp,
5385   int objc,
5386   Tcl_Obj *CONST objv[]
5387 ){
5388   sqlite3 *db;
5389   const char *zDbName;
5390   if( objc!=3 ){
5391     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
5392     return TCL_ERROR;
5393   }
5394   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5395   zDbName = Tcl_GetString(objv[2]);
5396   Tcl_AppendResult(interp, sqlite3_db_filename(db, zDbName), (void*)0);
5397   return TCL_OK;
5398 }
5399 
5400 /*
5401 ** Usage:  sqlite3_db_readonly DB DBNAME
5402 **
5403 ** Return 1 or 0 if DBNAME is readonly or not.  Return -1 if DBNAME does
5404 ** not exist.
5405 */
5406 static int SQLITE_TCLAPI test_db_readonly(
5407   void * clientData,
5408   Tcl_Interp *interp,
5409   int objc,
5410   Tcl_Obj *CONST objv[]
5411 ){
5412   sqlite3 *db;
5413   const char *zDbName;
5414   if( objc!=3 ){
5415     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
5416     return TCL_ERROR;
5417   }
5418   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5419   zDbName = Tcl_GetString(objv[2]);
5420   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_db_readonly(db, zDbName)));
5421   return TCL_OK;
5422 }
5423 
5424 /*
5425 ** Usage:  sqlite3_soft_heap_limit ?N?
5426 **
5427 ** Query or set the soft heap limit for the current thread.  The
5428 ** limit is only changed if the N is present.  The previous limit
5429 ** is returned.
5430 */
5431 static int SQLITE_TCLAPI test_soft_heap_limit(
5432   void * clientData,
5433   Tcl_Interp *interp,
5434   int objc,
5435   Tcl_Obj *CONST objv[]
5436 ){
5437   sqlite3_int64 amt;
5438   Tcl_WideInt N = -1;
5439   if( objc!=1 && objc!=2 ){
5440     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
5441     return TCL_ERROR;
5442   }
5443   if( objc==2 ){
5444     if( Tcl_GetWideIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
5445   }
5446   amt = sqlite3_soft_heap_limit64(N);
5447   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(amt));
5448   return TCL_OK;
5449 }
5450 
5451 /*
5452 ** Usage:   sqlite3_thread_cleanup
5453 **
5454 ** Call the sqlite3_thread_cleanup API.
5455 */
5456 static int SQLITE_TCLAPI test_thread_cleanup(
5457   void * clientData,
5458   Tcl_Interp *interp,
5459   int objc,
5460   Tcl_Obj *CONST objv[]
5461 ){
5462 #ifndef SQLITE_OMIT_DEPRECATED
5463   sqlite3_thread_cleanup();
5464 #endif
5465   return TCL_OK;
5466 }
5467 
5468 /*
5469 ** Usage:   sqlite3_pager_refcounts  DB
5470 **
5471 ** Return a list of numbers which are the PagerRefcount for all
5472 ** pagers on each database connection.
5473 */
5474 static int SQLITE_TCLAPI test_pager_refcounts(
5475   void * clientData,
5476   Tcl_Interp *interp,
5477   int objc,
5478   Tcl_Obj *CONST objv[]
5479 ){
5480   sqlite3 *db;
5481   int i;
5482   int v, *a;
5483   Tcl_Obj *pResult;
5484 
5485   if( objc!=2 ){
5486     Tcl_AppendResult(interp, "wrong # args: should be \"",
5487         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5488     return TCL_ERROR;
5489   }
5490   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5491   pResult = Tcl_NewObj();
5492   for(i=0; i<db->nDb; i++){
5493     if( db->aDb[i].pBt==0 ){
5494       v = -1;
5495     }else{
5496       sqlite3_mutex_enter(db->mutex);
5497       a = sqlite3PagerStats(sqlite3BtreePager(db->aDb[i].pBt));
5498       v = a[0];
5499       sqlite3_mutex_leave(db->mutex);
5500     }
5501     Tcl_ListObjAppendElement(0, pResult, Tcl_NewIntObj(v));
5502   }
5503   Tcl_SetObjResult(interp, pResult);
5504   return TCL_OK;
5505 }
5506 
5507 
5508 /*
5509 ** tclcmd:   working_64bit_int
5510 **
5511 ** Some TCL builds (ex: cygwin) do not support 64-bit integers.  This
5512 ** leads to a number of test failures.  The present command checks the
5513 ** TCL build to see whether or not it supports 64-bit integers.  It
5514 ** returns TRUE if it does and FALSE if not.
5515 **
5516 ** This command is used to warn users that their TCL build is defective
5517 ** and that the errors they are seeing in the test scripts might be
5518 ** a result of their defective TCL rather than problems in SQLite.
5519 */
5520 static int SQLITE_TCLAPI working_64bit_int(
5521   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5522   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5523   int objc,              /* Number of arguments */
5524   Tcl_Obj *CONST objv[]  /* Command arguments */
5525 ){
5526   Tcl_Obj *pTestObj;
5527   int working = 0;
5528 
5529   pTestObj = Tcl_NewWideIntObj(1000000*(i64)1234567890);
5530   working = strcmp(Tcl_GetString(pTestObj), "1234567890000000")==0;
5531   Tcl_DecrRefCount(pTestObj);
5532   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(working));
5533   return TCL_OK;
5534 }
5535 
5536 
5537 /*
5538 ** tclcmd:   vfs_unlink_test
5539 **
5540 ** This TCL command unregisters the primary VFS and then registers
5541 ** it back again.  This is used to test the ability to register a
5542 ** VFS when none are previously registered, and the ability to
5543 ** unregister the only available VFS.  Ticket #2738
5544 */
5545 static int SQLITE_TCLAPI vfs_unlink_test(
5546   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5547   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5548   int objc,              /* Number of arguments */
5549   Tcl_Obj *CONST objv[]  /* Command arguments */
5550 ){
5551   int i;
5552   sqlite3_vfs *pMain;
5553   sqlite3_vfs *apVfs[20];
5554   sqlite3_vfs one, two;
5555 
5556   sqlite3_vfs_unregister(0);   /* Unregister of NULL is harmless */
5557   one.zName = "__one";
5558   two.zName = "__two";
5559 
5560   /* Calling sqlite3_vfs_register with 2nd argument of 0 does not
5561   ** change the default VFS
5562   */
5563   pMain = sqlite3_vfs_find(0);
5564   sqlite3_vfs_register(&one, 0);
5565   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
5566   sqlite3_vfs_register(&two, 0);
5567   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
5568 
5569   /* We can find a VFS by its name */
5570   assert( sqlite3_vfs_find("__one")==&one );
5571   assert( sqlite3_vfs_find("__two")==&two );
5572 
5573   /* Calling sqlite_vfs_register with non-zero second parameter changes the
5574   ** default VFS, even if the 1st parameter is an existig VFS that is
5575   ** previously registered as the non-default.
5576   */
5577   sqlite3_vfs_register(&one, 1);
5578   assert( sqlite3_vfs_find("__one")==&one );
5579   assert( sqlite3_vfs_find("__two")==&two );
5580   assert( sqlite3_vfs_find(0)==&one );
5581   sqlite3_vfs_register(&two, 1);
5582   assert( sqlite3_vfs_find("__one")==&one );
5583   assert( sqlite3_vfs_find("__two")==&two );
5584   assert( sqlite3_vfs_find(0)==&two );
5585   if( pMain ){
5586     sqlite3_vfs_register(pMain, 1);
5587     assert( sqlite3_vfs_find("__one")==&one );
5588     assert( sqlite3_vfs_find("__two")==&two );
5589     assert( sqlite3_vfs_find(0)==pMain );
5590   }
5591 
5592   /* Unlink the default VFS.  Repeat until there are no more VFSes
5593   ** registered.
5594   */
5595   for(i=0; i<sizeof(apVfs)/sizeof(apVfs[0]); i++){
5596     apVfs[i] = sqlite3_vfs_find(0);
5597     if( apVfs[i] ){
5598       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
5599       sqlite3_vfs_unregister(apVfs[i]);
5600       assert( 0==sqlite3_vfs_find(apVfs[i]->zName) );
5601     }
5602   }
5603   assert( 0==sqlite3_vfs_find(0) );
5604 
5605   /* Register the main VFS as non-default (will be made default, since
5606   ** it'll be the only one in existence).
5607   */
5608   sqlite3_vfs_register(pMain, 0);
5609   assert( sqlite3_vfs_find(0)==pMain );
5610 
5611   /* Un-register the main VFS again to restore an empty VFS list */
5612   sqlite3_vfs_unregister(pMain);
5613   assert( 0==sqlite3_vfs_find(0) );
5614 
5615   /* Relink all VFSes in reverse order. */
5616   for(i=sizeof(apVfs)/sizeof(apVfs[0])-1; i>=0; i--){
5617     if( apVfs[i] ){
5618       sqlite3_vfs_register(apVfs[i], 1);
5619       assert( apVfs[i]==sqlite3_vfs_find(0) );
5620       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
5621     }
5622   }
5623 
5624   /* Unregister out sample VFSes. */
5625   sqlite3_vfs_unregister(&one);
5626   sqlite3_vfs_unregister(&two);
5627 
5628   /* Unregistering a VFS that is not currently registered is harmless */
5629   sqlite3_vfs_unregister(&one);
5630   sqlite3_vfs_unregister(&two);
5631   assert( sqlite3_vfs_find("__one")==0 );
5632   assert( sqlite3_vfs_find("__two")==0 );
5633 
5634   /* We should be left with the original default VFS back as the
5635   ** original */
5636   assert( sqlite3_vfs_find(0)==pMain );
5637 
5638   return TCL_OK;
5639 }
5640 
5641 /*
5642 ** tclcmd:   vfs_initfail_test
5643 **
5644 ** This TCL command attempts to vfs_find and vfs_register when the
5645 ** sqlite3_initialize() interface is failing.  All calls should fail.
5646 */
5647 static int SQLITE_TCLAPI vfs_initfail_test(
5648   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5649   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5650   int objc,              /* Number of arguments */
5651   Tcl_Obj *CONST objv[]  /* Command arguments */
5652 ){
5653   sqlite3_vfs one;
5654   one.zName = "__one";
5655 
5656   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5657   sqlite3_vfs_register(&one, 0);
5658   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5659   sqlite3_vfs_register(&one, 1);
5660   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5661   return TCL_OK;
5662 }
5663 
5664 /*
5665 ** Saved VFSes
5666 */
5667 static sqlite3_vfs *apVfs[20];
5668 static int nVfs = 0;
5669 
5670 /*
5671 ** tclcmd:   vfs_unregister_all
5672 **
5673 ** Unregister all VFSes.
5674 */
5675 static int SQLITE_TCLAPI vfs_unregister_all(
5676   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5677   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5678   int objc,              /* Number of arguments */
5679   Tcl_Obj *CONST objv[]  /* Command arguments */
5680 ){
5681   int i;
5682   for(i=0; i<ArraySize(apVfs); i++){
5683     apVfs[i] = sqlite3_vfs_find(0);
5684     if( apVfs[i]==0 ) break;
5685     sqlite3_vfs_unregister(apVfs[i]);
5686   }
5687   nVfs = i;
5688   return TCL_OK;
5689 }
5690 /*
5691 ** tclcmd:   vfs_reregister_all
5692 **
5693 ** Restore all VFSes that were removed using vfs_unregister_all. Taking
5694 ** care to put the linked list back together in the same order as it was
5695 ** in before vfs_unregister_all was invoked.
5696 */
5697 static int SQLITE_TCLAPI vfs_reregister_all(
5698   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5699   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5700   int objc,              /* Number of arguments */
5701   Tcl_Obj *CONST objv[]  /* Command arguments */
5702 ){
5703   int i;
5704   for(i=nVfs-1; i>=0; i--){
5705     sqlite3_vfs_register(apVfs[i], 1);
5706   }
5707   return TCL_OK;
5708 }
5709 
5710 
5711 /*
5712 ** tclcmd:   file_control_test DB
5713 **
5714 ** This TCL command runs the sqlite3_file_control interface and
5715 ** verifies correct operation of the same.
5716 */
5717 static int SQLITE_TCLAPI file_control_test(
5718   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5719   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5720   int objc,              /* Number of arguments */
5721   Tcl_Obj *CONST objv[]  /* Command arguments */
5722 ){
5723   int iArg = 0;
5724   sqlite3 *db;
5725   int rc;
5726 
5727   if( objc!=2 ){
5728     Tcl_AppendResult(interp, "wrong # args: should be \"",
5729         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5730     return TCL_ERROR;
5731   }
5732   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5733   rc = sqlite3_file_control(db, 0, 0, &iArg);
5734   assert( rc==SQLITE_NOTFOUND );
5735   rc = sqlite3_file_control(db, "notadatabase", SQLITE_FCNTL_LOCKSTATE, &iArg);
5736   assert( rc==SQLITE_ERROR );
5737   rc = sqlite3_file_control(db, "main", -1, &iArg);
5738   assert( rc==SQLITE_NOTFOUND );
5739   rc = sqlite3_file_control(db, "temp", -1, &iArg);
5740   assert( rc==SQLITE_NOTFOUND || rc==SQLITE_ERROR );
5741 
5742   return TCL_OK;
5743 }
5744 
5745 
5746 /*
5747 ** tclcmd:   file_control_lasterrno_test DB
5748 **
5749 ** This TCL command runs the sqlite3_file_control interface and
5750 ** verifies correct operation of the SQLITE_LAST_ERRNO verb.
5751 */
5752 static int SQLITE_TCLAPI file_control_lasterrno_test(
5753   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5754   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5755   int objc,              /* Number of arguments */
5756   Tcl_Obj *CONST objv[]  /* Command arguments */
5757 ){
5758   int iArg = 0;
5759   sqlite3 *db;
5760   int rc;
5761 
5762   if( objc!=2 ){
5763     Tcl_AppendResult(interp, "wrong # args: should be \"",
5764         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5765     return TCL_ERROR;
5766   }
5767   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5768     return TCL_ERROR;
5769   }
5770   rc = sqlite3_file_control(db, NULL, SQLITE_LAST_ERRNO, &iArg);
5771   if( rc ){
5772     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5773     return TCL_ERROR;
5774   }
5775   if( iArg!=0 ) {
5776     Tcl_AppendResult(interp, "Unexpected non-zero errno: ",
5777                      Tcl_GetStringFromObj(Tcl_NewIntObj(iArg), 0), " ", 0);
5778     return TCL_ERROR;
5779   }
5780   return TCL_OK;
5781 }
5782 
5783 /*
5784 ** tclcmd:   file_control_data_version DB DBNAME
5785 **
5786 ** This TCL command runs the sqlite3_file_control with the
5787 ** SQLITE_FCNTL_DATA_VERSION opcode, returning the result.
5788 */
5789 static int SQLITE_TCLAPI file_control_data_version(
5790   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5791   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5792   int objc,              /* Number of arguments */
5793   Tcl_Obj *CONST objv[]  /* Command arguments */
5794 ){
5795   unsigned int iVers;             /* data version */
5796   char *zDb;                      /* Db name ("main", "temp" etc.) */
5797   sqlite3 *db;                    /* Database handle */
5798   int rc;                         /* file_control() return code */
5799   char zBuf[100];
5800 
5801   if( objc!=3 && objc!=2 ){
5802     Tcl_WrongNumArgs(interp, 1, objv, "DB [DBNAME]");
5803     return TCL_ERROR;
5804   }
5805   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5806    return TCL_ERROR;
5807   }
5808   zDb = objc==3 ? Tcl_GetString(objv[2]) : NULL;
5809 
5810   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_DATA_VERSION, (void *)&iVers);
5811   if( rc ){
5812     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5813     return TCL_ERROR;
5814   }else{
5815     sqlite3_snprintf(sizeof(zBuf),zBuf,"%u",iVers);
5816     Tcl_SetResult(interp, (char *)zBuf, TCL_VOLATILE);
5817     return TCL_OK;
5818   }
5819 }
5820 
5821 /*
5822 ** tclcmd:   file_control_chunksize_test DB DBNAME SIZE
5823 **
5824 ** This TCL command runs the sqlite3_file_control interface and
5825 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5826 ** SQLITE_SET_LOCKPROXYFILE verbs.
5827 */
5828 static int SQLITE_TCLAPI file_control_chunksize_test(
5829   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5830   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5831   int objc,              /* Number of arguments */
5832   Tcl_Obj *CONST objv[]  /* Command arguments */
5833 ){
5834   int nSize;                      /* New chunk size */
5835   char *zDb;                      /* Db name ("main", "temp" etc.) */
5836   sqlite3 *db;                    /* Database handle */
5837   int rc;                         /* file_control() return code */
5838 
5839   if( objc!=4 ){
5840     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5841     return TCL_ERROR;
5842   }
5843   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5844    || Tcl_GetIntFromObj(interp, objv[3], &nSize)
5845   ){
5846    return TCL_ERROR;
5847   }
5848   zDb = Tcl_GetString(objv[2]);
5849   if( zDb[0]=='\0' ) zDb = NULL;
5850 
5851   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_CHUNK_SIZE, (void *)&nSize);
5852   if( rc ){
5853     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5854     return TCL_ERROR;
5855   }
5856   return TCL_OK;
5857 }
5858 
5859 /*
5860 ** tclcmd:   file_control_sizehint_test DB DBNAME SIZE
5861 **
5862 ** This TCL command runs the sqlite3_file_control interface
5863 ** with SQLITE_FCNTL_SIZE_HINT
5864 */
5865 static int SQLITE_TCLAPI file_control_sizehint_test(
5866   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5867   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5868   int objc,              /* Number of arguments */
5869   Tcl_Obj *CONST objv[]  /* Command arguments */
5870 ){
5871   Tcl_WideInt nSize;              /* Hinted size */
5872   char *zDb;                      /* Db name ("main", "temp" etc.) */
5873   sqlite3 *db;                    /* Database handle */
5874   int rc;                         /* file_control() return code */
5875 
5876   if( objc!=4 ){
5877     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5878     return TCL_ERROR;
5879   }
5880   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5881    || Tcl_GetWideIntFromObj(interp, objv[3], &nSize)
5882   ){
5883    return TCL_ERROR;
5884   }
5885   zDb = Tcl_GetString(objv[2]);
5886   if( zDb[0]=='\0' ) zDb = NULL;
5887 
5888   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_SIZE_HINT, (void *)&nSize);
5889   if( rc ){
5890     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5891     return TCL_ERROR;
5892   }
5893   return TCL_OK;
5894 }
5895 
5896 /*
5897 ** tclcmd:   file_control_lockproxy_test DB PWD
5898 **
5899 ** This TCL command runs the sqlite3_file_control interface and
5900 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5901 ** SQLITE_SET_LOCKPROXYFILE verbs.
5902 */
5903 static int SQLITE_TCLAPI file_control_lockproxy_test(
5904   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5905   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5906   int objc,              /* Number of arguments */
5907   Tcl_Obj *CONST objv[]  /* Command arguments */
5908 ){
5909   sqlite3 *db;
5910 
5911   if( objc!=3 ){
5912     Tcl_AppendResult(interp, "wrong # args: should be \"",
5913                      Tcl_GetStringFromObj(objv[0], 0), " DB PWD", 0);
5914     return TCL_ERROR;
5915   }
5916   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5917    return TCL_ERROR;
5918   }
5919 
5920 #if !defined(SQLITE_ENABLE_LOCKING_STYLE)
5921 #  if defined(__APPLE__)
5922 #    define SQLITE_ENABLE_LOCKING_STYLE 1
5923 #  else
5924 #    define SQLITE_ENABLE_LOCKING_STYLE 0
5925 #  endif
5926 #endif
5927 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
5928   {
5929     char *testPath;
5930     int rc;
5931     int nPwd;
5932     const char *zPwd;
5933     char proxyPath[400];
5934 
5935     zPwd = Tcl_GetStringFromObj(objv[2], &nPwd);
5936     if( sizeof(proxyPath)<nPwd+20 ){
5937       Tcl_AppendResult(interp, "PWD too big", (void*)0);
5938       return TCL_ERROR;
5939     }
5940     sqlite3_snprintf(sizeof(proxyPath), proxyPath, "%s/test.proxy", zPwd);
5941     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5942     if( rc ){
5943       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5944       return TCL_ERROR;
5945     }
5946     rc = sqlite3_file_control(db, NULL, SQLITE_GET_LOCKPROXYFILE, &testPath);
5947     if( strncmp(proxyPath,testPath,11) ){
5948       Tcl_AppendResult(interp, "Lock proxy file did not match the "
5949                                "previously assigned value", 0);
5950       return TCL_ERROR;
5951     }
5952     if( rc ){
5953       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5954       return TCL_ERROR;
5955     }
5956     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5957     if( rc ){
5958       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5959       return TCL_ERROR;
5960     }
5961   }
5962 #endif
5963   return TCL_OK;
5964 }
5965 
5966 #if SQLITE_OS_WIN
5967 /*
5968 ** tclcmd:   file_control_win32_av_retry DB  NRETRY  DELAY
5969 **
5970 ** This TCL command runs the sqlite3_file_control interface with
5971 ** the SQLITE_FCNTL_WIN32_AV_RETRY opcode.
5972 */
5973 static int SQLITE_TCLAPI file_control_win32_av_retry(
5974   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5975   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5976   int objc,              /* Number of arguments */
5977   Tcl_Obj *CONST objv[]  /* Command arguments */
5978 ){
5979   sqlite3 *db;
5980   int rc;
5981   int a[2];
5982   char z[100];
5983 
5984   if( objc!=4 ){
5985     Tcl_AppendResult(interp, "wrong # args: should be \"",
5986         Tcl_GetStringFromObj(objv[0], 0), " DB NRETRY DELAY", 0);
5987     return TCL_ERROR;
5988   }
5989   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5990     return TCL_ERROR;
5991   }
5992   if( Tcl_GetIntFromObj(interp, objv[2], &a[0]) ) return TCL_ERROR;
5993   if( Tcl_GetIntFromObj(interp, objv[3], &a[1]) ) return TCL_ERROR;
5994   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_AV_RETRY, (void*)a);
5995   sqlite3_snprintf(sizeof(z), z, "%d %d %d", rc, a[0], a[1]);
5996   Tcl_AppendResult(interp, z, (char*)0);
5997   return TCL_OK;
5998 }
5999 
6000 /*
6001 ** tclcmd:   file_control_win32_get_handle DB
6002 **
6003 ** This TCL command runs the sqlite3_file_control interface with
6004 ** the SQLITE_FCNTL_WIN32_GET_HANDLE opcode.
6005 */
6006 static int file_control_win32_get_handle(
6007   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6008   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6009   int objc,              /* Number of arguments */
6010   Tcl_Obj *CONST objv[]  /* Command arguments */
6011 ){
6012   sqlite3 *db;
6013   int rc;
6014   HANDLE hFile = NULL;
6015   char z[100];
6016 
6017   if( objc!=2 ){
6018     Tcl_AppendResult(interp, "wrong # args: should be \"",
6019         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
6020     return TCL_ERROR;
6021   }
6022   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6023     return TCL_ERROR;
6024   }
6025   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_GET_HANDLE,
6026                             (void*)&hFile);
6027   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
6028   Tcl_AppendResult(interp, z, (char*)0);
6029   return TCL_OK;
6030 }
6031 
6032 /*
6033 ** tclcmd:   file_control_win32_set_handle DB HANDLE
6034 **
6035 ** This TCL command runs the sqlite3_file_control interface with
6036 ** the SQLITE_FCNTL_WIN32_SET_HANDLE opcode.
6037 */
6038 static int SQLITE_TCLAPI file_control_win32_set_handle(
6039   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6040   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6041   int objc,              /* Number of arguments */
6042   Tcl_Obj *CONST objv[]  /* Command arguments */
6043 ){
6044   sqlite3 *db;
6045   int rc;
6046   HANDLE hFile = NULL;
6047   char z[100];
6048 
6049   if( objc!=3 ){
6050     Tcl_AppendResult(interp, "wrong # args: should be \"",
6051         Tcl_GetStringFromObj(objv[0], 0), " DB HANDLE", 0);
6052     return TCL_ERROR;
6053   }
6054   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6055     return TCL_ERROR;
6056   }
6057   if( getWin32Handle(interp, Tcl_GetString(objv[2]), &hFile) ){
6058     return TCL_ERROR;
6059   }
6060   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_SET_HANDLE,
6061                             (void*)&hFile);
6062   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
6063   Tcl_AppendResult(interp, z, (char*)0);
6064   return TCL_OK;
6065 }
6066 #endif
6067 
6068 /*
6069 ** tclcmd:   file_control_persist_wal DB PERSIST-FLAG
6070 **
6071 ** This TCL command runs the sqlite3_file_control interface with
6072 ** the SQLITE_FCNTL_PERSIST_WAL opcode.
6073 */
6074 static int SQLITE_TCLAPI file_control_persist_wal(
6075   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6076   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6077   int objc,              /* Number of arguments */
6078   Tcl_Obj *CONST objv[]  /* Command arguments */
6079 ){
6080   sqlite3 *db;
6081   int rc;
6082   int bPersist;
6083   char z[100];
6084 
6085   if( objc!=3 ){
6086     Tcl_AppendResult(interp, "wrong # args: should be \"",
6087         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
6088     return TCL_ERROR;
6089   }
6090   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6091     return TCL_ERROR;
6092   }
6093   if( Tcl_GetIntFromObj(interp, objv[2], &bPersist) ) return TCL_ERROR;
6094   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_PERSIST_WAL, (void*)&bPersist);
6095   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, bPersist);
6096   Tcl_AppendResult(interp, z, (char*)0);
6097   return TCL_OK;
6098 }
6099 
6100 /*
6101 ** tclcmd:   file_control_powersafe_overwrite DB PSOW-FLAG
6102 **
6103 ** This TCL command runs the sqlite3_file_control interface with
6104 ** the SQLITE_FCNTL_POWERSAFE_OVERWRITE opcode.
6105 */
6106 static int SQLITE_TCLAPI file_control_powersafe_overwrite(
6107   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6108   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6109   int objc,              /* Number of arguments */
6110   Tcl_Obj *CONST objv[]  /* Command arguments */
6111 ){
6112   sqlite3 *db;
6113   int rc;
6114   int b;
6115   char z[100];
6116 
6117   if( objc!=3 ){
6118     Tcl_AppendResult(interp, "wrong # args: should be \"",
6119         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
6120     return TCL_ERROR;
6121   }
6122   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6123     return TCL_ERROR;
6124   }
6125   if( Tcl_GetIntFromObj(interp, objv[2], &b) ) return TCL_ERROR;
6126   rc = sqlite3_file_control(db,NULL,SQLITE_FCNTL_POWERSAFE_OVERWRITE,(void*)&b);
6127   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, b);
6128   Tcl_AppendResult(interp, z, (char*)0);
6129   return TCL_OK;
6130 }
6131 
6132 
6133 /*
6134 ** tclcmd:   file_control_vfsname DB ?AUXDB?
6135 **
6136 ** Return a string that describes the stack of VFSes.
6137 */
6138 static int SQLITE_TCLAPI file_control_vfsname(
6139   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6140   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6141   int objc,              /* Number of arguments */
6142   Tcl_Obj *CONST objv[]  /* Command arguments */
6143 ){
6144   sqlite3 *db;
6145   const char *zDbName = "main";
6146   char *zVfsName = 0;
6147 
6148   if( objc!=2 && objc!=3 ){
6149     Tcl_AppendResult(interp, "wrong # args: should be \"",
6150         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
6151     return TCL_ERROR;
6152   }
6153   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6154     return TCL_ERROR;
6155   }
6156   if( objc==3 ){
6157     zDbName = Tcl_GetString(objv[2]);
6158   }
6159   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_VFSNAME,(void*)&zVfsName);
6160   Tcl_AppendResult(interp, zVfsName, (char*)0);
6161   sqlite3_free(zVfsName);
6162   return TCL_OK;
6163 }
6164 
6165 /*
6166 ** tclcmd:   file_control_tempfilename DB ?AUXDB?
6167 **
6168 ** Return a string that is a temporary filename
6169 */
6170 static int SQLITE_TCLAPI file_control_tempfilename(
6171   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6172   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6173   int objc,              /* Number of arguments */
6174   Tcl_Obj *CONST objv[]  /* Command arguments */
6175 ){
6176   sqlite3 *db;
6177   const char *zDbName = "main";
6178   char *zTName = 0;
6179 
6180   if( objc!=2 && objc!=3 ){
6181     Tcl_AppendResult(interp, "wrong # args: should be \"",
6182         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
6183     return TCL_ERROR;
6184   }
6185   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6186     return TCL_ERROR;
6187   }
6188   if( objc==3 ){
6189     zDbName = Tcl_GetString(objv[2]);
6190   }
6191   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_TEMPFILENAME, (void*)&zTName);
6192   Tcl_AppendResult(interp, zTName, (char*)0);
6193   sqlite3_free(zTName);
6194   return TCL_OK;
6195 }
6196 
6197 
6198 /*
6199 ** tclcmd:   sqlite3_vfs_list
6200 **
6201 **   Return a tcl list containing the names of all registered vfs's.
6202 */
6203 static int SQLITE_TCLAPI vfs_list(
6204   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6205   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6206   int objc,              /* Number of arguments */
6207   Tcl_Obj *CONST objv[]  /* Command arguments */
6208 ){
6209   sqlite3_vfs *pVfs;
6210   Tcl_Obj *pRet = Tcl_NewObj();
6211   if( objc!=1 ){
6212     Tcl_WrongNumArgs(interp, 1, objv, "");
6213     return TCL_ERROR;
6214   }
6215   for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
6216     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(pVfs->zName, -1));
6217   }
6218   Tcl_SetObjResult(interp, pRet);
6219   return TCL_OK;
6220 }
6221 
6222 /*
6223 ** tclcmd:   sqlite3_limit DB ID VALUE
6224 **
6225 ** This TCL command runs the sqlite3_limit interface and
6226 ** verifies correct operation of the same.
6227 */
6228 static int SQLITE_TCLAPI test_limit(
6229   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6230   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6231   int objc,              /* Number of arguments */
6232   Tcl_Obj *CONST objv[]  /* Command arguments */
6233 ){
6234   sqlite3 *db;
6235   int rc;
6236   static const struct {
6237      char *zName;
6238      int id;
6239   } aId[] = {
6240     { "SQLITE_LIMIT_LENGTH",              SQLITE_LIMIT_LENGTH               },
6241     { "SQLITE_LIMIT_SQL_LENGTH",          SQLITE_LIMIT_SQL_LENGTH           },
6242     { "SQLITE_LIMIT_COLUMN",              SQLITE_LIMIT_COLUMN               },
6243     { "SQLITE_LIMIT_EXPR_DEPTH",          SQLITE_LIMIT_EXPR_DEPTH           },
6244     { "SQLITE_LIMIT_COMPOUND_SELECT",     SQLITE_LIMIT_COMPOUND_SELECT      },
6245     { "SQLITE_LIMIT_VDBE_OP",             SQLITE_LIMIT_VDBE_OP              },
6246     { "SQLITE_LIMIT_FUNCTION_ARG",        SQLITE_LIMIT_FUNCTION_ARG         },
6247     { "SQLITE_LIMIT_ATTACHED",            SQLITE_LIMIT_ATTACHED             },
6248     { "SQLITE_LIMIT_LIKE_PATTERN_LENGTH", SQLITE_LIMIT_LIKE_PATTERN_LENGTH  },
6249     { "SQLITE_LIMIT_VARIABLE_NUMBER",     SQLITE_LIMIT_VARIABLE_NUMBER      },
6250     { "SQLITE_LIMIT_TRIGGER_DEPTH",       SQLITE_LIMIT_TRIGGER_DEPTH        },
6251     { "SQLITE_LIMIT_WORKER_THREADS",      SQLITE_LIMIT_WORKER_THREADS       },
6252 
6253     /* Out of range test cases */
6254     { "SQLITE_LIMIT_TOOSMALL",            -1,                               },
6255     { "SQLITE_LIMIT_TOOBIG",              SQLITE_LIMIT_WORKER_THREADS+1     },
6256   };
6257   int i, id = 0;
6258   int val;
6259   const char *zId;
6260 
6261   if( objc!=4 ){
6262     Tcl_AppendResult(interp, "wrong # args: should be \"",
6263         Tcl_GetStringFromObj(objv[0], 0), " DB ID VALUE", 0);
6264     return TCL_ERROR;
6265   }
6266   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6267   zId = Tcl_GetString(objv[2]);
6268   for(i=0; i<sizeof(aId)/sizeof(aId[0]); i++){
6269     if( strcmp(zId, aId[i].zName)==0 ){
6270       id = aId[i].id;
6271       break;
6272     }
6273   }
6274   if( i>=sizeof(aId)/sizeof(aId[0]) ){
6275     Tcl_AppendResult(interp, "unknown limit type: ", zId, (char*)0);
6276     return TCL_ERROR;
6277   }
6278   if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
6279   rc = sqlite3_limit(db, id, val);
6280   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
6281   return TCL_OK;
6282 }
6283 
6284 /*
6285 ** tclcmd:  save_prng_state
6286 **
6287 ** Save the state of the pseudo-random number generator.
6288 ** At the same time, verify that sqlite3_test_control works even when
6289 ** called with an out-of-range opcode.
6290 */
6291 static int SQLITE_TCLAPI save_prng_state(
6292   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6293   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6294   int objc,              /* Number of arguments */
6295   Tcl_Obj *CONST objv[]  /* Command arguments */
6296 ){
6297   int rc = sqlite3_test_control(9999);
6298   assert( rc==0 );
6299   rc = sqlite3_test_control(-1);
6300   assert( rc==0 );
6301   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SAVE);
6302   return TCL_OK;
6303 }
6304 /*
6305 ** tclcmd:  restore_prng_state
6306 */
6307 static int SQLITE_TCLAPI restore_prng_state(
6308   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6309   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6310   int objc,              /* Number of arguments */
6311   Tcl_Obj *CONST objv[]  /* Command arguments */
6312 ){
6313   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESTORE);
6314   return TCL_OK;
6315 }
6316 /*
6317 ** tclcmd:  reset_prng_state
6318 */
6319 static int SQLITE_TCLAPI reset_prng_state(
6320   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6321   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6322   int objc,              /* Number of arguments */
6323   Tcl_Obj *CONST objv[]  /* Command arguments */
6324 ){
6325   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESET);
6326   return TCL_OK;
6327 }
6328 
6329 /*
6330 ** tclcmd:  database_may_be_corrupt
6331 **
6332 ** Indicate that database files might be corrupt. In other words, set the normal
6333 ** state of operation.
6334 */
6335 static int SQLITE_TCLAPI database_may_be_corrupt(
6336   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6337   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6338   int objc,              /* Number of arguments */
6339   Tcl_Obj *CONST objv[]  /* Command arguments */
6340 ){
6341   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 0);
6342   return TCL_OK;
6343 }
6344 /*
6345 ** tclcmd:  database_never_corrupt
6346 **
6347 ** Indicate that database files are always well-formed. This enables
6348 ** extra assert() statements that test conditions that are always true
6349 ** for well-formed databases.
6350 */
6351 static int SQLITE_TCLAPI database_never_corrupt(
6352   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6353   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6354   int objc,              /* Number of arguments */
6355   Tcl_Obj *CONST objv[]  /* Command arguments */
6356 ){
6357   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 1);
6358   return TCL_OK;
6359 }
6360 
6361 /*
6362 ** tclcmd:  pcache_stats
6363 */
6364 static int SQLITE_TCLAPI test_pcache_stats(
6365   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6366   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6367   int objc,              /* Number of arguments */
6368   Tcl_Obj *CONST objv[]  /* Command arguments */
6369 ){
6370   int nMin;
6371   int nMax;
6372   int nCurrent;
6373   int nRecyclable;
6374   Tcl_Obj *pRet;
6375 
6376   sqlite3PcacheStats(&nCurrent, &nMax, &nMin, &nRecyclable);
6377 
6378   pRet = Tcl_NewObj();
6379   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("current", -1));
6380   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCurrent));
6381   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("max", -1));
6382   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMax));
6383   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("min", -1));
6384   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMin));
6385   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("recyclable", -1));
6386   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nRecyclable));
6387 
6388   Tcl_SetObjResult(interp, pRet);
6389 
6390   return TCL_OK;
6391 }
6392 
6393 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6394 static void test_unlock_notify_cb(void **aArg, int nArg){
6395   int ii;
6396   for(ii=0; ii<nArg; ii++){
6397     Tcl_EvalEx((Tcl_Interp *)aArg[ii], "unlock_notify", -1, TCL_EVAL_GLOBAL);
6398   }
6399 }
6400 #endif /* SQLITE_ENABLE_UNLOCK_NOTIFY */
6401 
6402 /*
6403 ** tclcmd:  sqlite3_unlock_notify db
6404 */
6405 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6406 static int SQLITE_TCLAPI test_unlock_notify(
6407   ClientData clientData, /* Unused */
6408   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6409   int objc,              /* Number of arguments */
6410   Tcl_Obj *CONST objv[]  /* Command arguments */
6411 ){
6412   sqlite3 *db;
6413   int rc;
6414 
6415   if( objc!=2 ){
6416     Tcl_WrongNumArgs(interp, 1, objv, "DB");
6417     return TCL_ERROR;
6418   }
6419 
6420   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6421     return TCL_ERROR;
6422   }
6423   rc = sqlite3_unlock_notify(db, test_unlock_notify_cb, (void *)interp);
6424   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6425   return TCL_OK;
6426 }
6427 #endif
6428 
6429 /*
6430 ** tclcmd:  sqlite3_wal_checkpoint db ?NAME?
6431 */
6432 static int SQLITE_TCLAPI test_wal_checkpoint(
6433   ClientData clientData, /* Unused */
6434   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6435   int objc,              /* Number of arguments */
6436   Tcl_Obj *CONST objv[]  /* Command arguments */
6437 ){
6438   char *zDb = 0;
6439   sqlite3 *db;
6440   int rc;
6441 
6442   if( objc!=3 && objc!=2 ){
6443     Tcl_WrongNumArgs(interp, 1, objv, "DB ?NAME?");
6444     return TCL_ERROR;
6445   }
6446 
6447   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6448     return TCL_ERROR;
6449   }
6450   if( objc==3 ){
6451     zDb = Tcl_GetString(objv[2]);
6452   }
6453   rc = sqlite3_wal_checkpoint(db, zDb);
6454   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6455   return TCL_OK;
6456 }
6457 
6458 /*
6459 ** tclcmd:  sqlite3_wal_checkpoint_v2 db MODE ?NAME?
6460 **
6461 ** This command calls the wal_checkpoint_v2() function with the specified
6462 ** mode argument (passive, full or restart). If present, the database name
6463 ** NAME is passed as the second argument to wal_checkpoint_v2(). If it the
6464 ** NAME argument is not present, a NULL pointer is passed instead.
6465 **
6466 ** If wal_checkpoint_v2() returns any value other than SQLITE_BUSY or
6467 ** SQLITE_OK, then this command returns TCL_ERROR. The Tcl result is set
6468 ** to the error message obtained from sqlite3_errmsg().
6469 **
6470 ** Otherwise, this command returns a list of three integers. The first integer
6471 ** is 1 if SQLITE_BUSY was returned, or 0 otherwise. The following two integers
6472 ** are the values returned via the output parameters by wal_checkpoint_v2() -
6473 ** the number of frames in the log and the number of frames in the log
6474 ** that have been checkpointed.
6475 */
6476 static int SQLITE_TCLAPI test_wal_checkpoint_v2(
6477   ClientData clientData, /* Unused */
6478   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6479   int objc,              /* Number of arguments */
6480   Tcl_Obj *CONST objv[]  /* Command arguments */
6481 ){
6482   char *zDb = 0;
6483   sqlite3 *db;
6484   int rc;
6485 
6486   int eMode;
6487   int nLog = -555;
6488   int nCkpt = -555;
6489   Tcl_Obj *pRet;
6490 
6491   const char * aMode[] = { "passive", "full", "restart", "truncate", 0 };
6492   assert( SQLITE_CHECKPOINT_PASSIVE==0 );
6493   assert( SQLITE_CHECKPOINT_FULL==1 );
6494   assert( SQLITE_CHECKPOINT_RESTART==2 );
6495   assert( SQLITE_CHECKPOINT_TRUNCATE==3 );
6496 
6497   if( objc!=3 && objc!=4 ){
6498     Tcl_WrongNumArgs(interp, 1, objv, "DB MODE ?NAME?");
6499     return TCL_ERROR;
6500   }
6501 
6502   if( objc==4 ){
6503     zDb = Tcl_GetString(objv[3]);
6504   }
6505   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) || (
6506       TCL_OK!=Tcl_GetIntFromObj(0, objv[2], &eMode)
6507    && TCL_OK!=Tcl_GetIndexFromObj(interp, objv[2], aMode, "mode", 0, &eMode)
6508   )){
6509     return TCL_ERROR;
6510   }
6511 
6512   rc = sqlite3_wal_checkpoint_v2(db, zDb, eMode, &nLog, &nCkpt);
6513   if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){
6514     const char *zErrCode = sqlite3ErrName(rc);
6515     Tcl_ResetResult(interp);
6516     Tcl_AppendResult(interp, zErrCode, " - ", (char *)sqlite3_errmsg(db), 0);
6517     return TCL_ERROR;
6518   }
6519 
6520   pRet = Tcl_NewObj();
6521   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(rc==SQLITE_BUSY?1:0));
6522   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nLog));
6523   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCkpt));
6524   Tcl_SetObjResult(interp, pRet);
6525 
6526   return TCL_OK;
6527 }
6528 
6529 /*
6530 ** tclcmd:  sqlite3_wal_autocheckpoint db VALUE
6531 */
6532 static int SQLITE_TCLAPI test_wal_autocheckpoint(
6533   ClientData clientData, /* Unused */
6534   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6535   int objc,              /* Number of arguments */
6536   Tcl_Obj *CONST objv[]  /* Command arguments */
6537 ){
6538   sqlite3 *db;
6539   int rc;
6540   int iVal;
6541 
6542 
6543   if( objc!=3 ){
6544     Tcl_WrongNumArgs(interp, 1, objv, "DB VALUE");
6545     return TCL_ERROR;
6546   }
6547 
6548   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
6549    || Tcl_GetIntFromObj(0, objv[2], &iVal)
6550   ){
6551     return TCL_ERROR;
6552   }
6553 
6554   rc = sqlite3_wal_autocheckpoint(db, iVal);
6555   Tcl_ResetResult(interp);
6556   if( rc!=SQLITE_OK ){
6557     const char *zErrCode = sqlite3ErrName(rc);
6558     Tcl_SetObjResult(interp, Tcl_NewStringObj(zErrCode, -1));
6559     return TCL_ERROR;
6560   }
6561 
6562   return TCL_OK;
6563 }
6564 
6565 
6566 /*
6567 ** tclcmd:  test_sqlite3_log ?SCRIPT?
6568 */
6569 static struct LogCallback {
6570   Tcl_Interp *pInterp;
6571   Tcl_Obj *pObj;
6572 } logcallback = {0, 0};
6573 static void xLogcallback(void *unused, int err, char *zMsg){
6574   Tcl_Obj *pNew = Tcl_DuplicateObj(logcallback.pObj);
6575   Tcl_IncrRefCount(pNew);
6576   Tcl_ListObjAppendElement(
6577       0, pNew, Tcl_NewStringObj(sqlite3ErrName(err), -1)
6578   );
6579   Tcl_ListObjAppendElement(0, pNew, Tcl_NewStringObj(zMsg, -1));
6580   Tcl_EvalObjEx(logcallback.pInterp, pNew, TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT);
6581   Tcl_DecrRefCount(pNew);
6582 }
6583 static int SQLITE_TCLAPI test_sqlite3_log(
6584   ClientData clientData,
6585   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6586   int objc,              /* Number of arguments */
6587   Tcl_Obj *CONST objv[]  /* Command arguments */
6588 ){
6589   if( objc>2 ){
6590     Tcl_WrongNumArgs(interp, 1, objv, "SCRIPT");
6591     return TCL_ERROR;
6592   }
6593   if( logcallback.pObj ){
6594     Tcl_DecrRefCount(logcallback.pObj);
6595     logcallback.pObj = 0;
6596     logcallback.pInterp = 0;
6597     sqlite3_config(SQLITE_CONFIG_LOG, (void*)0, (void*)0);
6598   }
6599   if( objc>1 ){
6600     logcallback.pObj = objv[1];
6601     Tcl_IncrRefCount(logcallback.pObj);
6602     logcallback.pInterp = interp;
6603     sqlite3_config(SQLITE_CONFIG_LOG, xLogcallback, (void*)0);
6604   }
6605   return TCL_OK;
6606 }
6607 
6608 /*
6609 **     tcl_objproc COMMANDNAME ARGS...
6610 **
6611 ** Run a TCL command using its objProc interface.  Throw an error if
6612 ** the command has no objProc interface.
6613 */
6614 static int SQLITE_TCLAPI runAsObjProc(
6615   void * clientData,
6616   Tcl_Interp *interp,
6617   int objc,
6618   Tcl_Obj *CONST objv[]
6619 ){
6620   Tcl_CmdInfo cmdInfo;
6621   if( objc<2 ){
6622     Tcl_WrongNumArgs(interp, 1, objv, "COMMAND ...");
6623     return TCL_ERROR;
6624   }
6625   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
6626     Tcl_AppendResult(interp, "command not found: ",
6627            Tcl_GetString(objv[1]), (char*)0);
6628     return TCL_ERROR;
6629   }
6630   if( cmdInfo.objProc==0 ){
6631     Tcl_AppendResult(interp, "command has no objProc: ",
6632            Tcl_GetString(objv[1]), (char*)0);
6633     return TCL_ERROR;
6634   }
6635   return cmdInfo.objProc(cmdInfo.objClientData, interp, objc-1, objv+1);
6636 }
6637 
6638 #ifndef SQLITE_OMIT_EXPLAIN
6639 /*
6640 ** WARNING: The following function, printExplainQueryPlan() is an exact
6641 ** copy of example code from eqp.in (eqp.html). If this code is modified,
6642 ** then the documentation copy needs to be modified as well.
6643 */
6644 /*
6645 ** Argument pStmt is a prepared SQL statement. This function compiles
6646 ** an EXPLAIN QUERY PLAN command to report on the prepared statement,
6647 ** and prints the report to stdout using printf().
6648 */
6649 int printExplainQueryPlan(sqlite3_stmt *pStmt){
6650   const char *zSql;               /* Input SQL */
6651   char *zExplain;                 /* SQL with EXPLAIN QUERY PLAN prepended */
6652   sqlite3_stmt *pExplain;         /* Compiled EXPLAIN QUERY PLAN command */
6653   int rc;                         /* Return code from sqlite3_prepare_v2() */
6654 
6655   zSql = sqlite3_sql(pStmt);
6656   if( zSql==0 ) return SQLITE_ERROR;
6657 
6658   zExplain = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", zSql);
6659   if( zExplain==0 ) return SQLITE_NOMEM;
6660 
6661   rc = sqlite3_prepare_v2(sqlite3_db_handle(pStmt), zExplain, -1, &pExplain, 0);
6662   sqlite3_free(zExplain);
6663   if( rc!=SQLITE_OK ) return rc;
6664 
6665   while( SQLITE_ROW==sqlite3_step(pExplain) ){
6666     int iSelectid = sqlite3_column_int(pExplain, 0);
6667     int iOrder = sqlite3_column_int(pExplain, 1);
6668     int iFrom = sqlite3_column_int(pExplain, 2);
6669     const char *zDetail = (const char *)sqlite3_column_text(pExplain, 3);
6670 
6671     printf("%d %d %d %s\n", iSelectid, iOrder, iFrom, zDetail);
6672   }
6673 
6674   return sqlite3_finalize(pExplain);
6675 }
6676 
6677 static int SQLITE_TCLAPI test_print_eqp(
6678   void * clientData,
6679   Tcl_Interp *interp,
6680   int objc,
6681   Tcl_Obj *CONST objv[]
6682 ){
6683   int rc;
6684   sqlite3_stmt *pStmt;
6685 
6686   if( objc!=2 ){
6687     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
6688     return TCL_ERROR;
6689   }
6690   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
6691   rc = printExplainQueryPlan(pStmt);
6692   /* This is needed on Windows so that a test case using this
6693   ** function can open a read pipe and get the output of
6694   ** printExplainQueryPlan() immediately.
6695   */
6696   fflush(stdout);
6697   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
6698   return TCL_OK;
6699 }
6700 #endif /* SQLITE_OMIT_EXPLAIN */
6701 
6702 /*
6703 ** sqlite3_test_control VERB ARGS...
6704 */
6705 static int SQLITE_TCLAPI test_test_control(
6706   void * clientData,
6707   Tcl_Interp *interp,
6708   int objc,
6709   Tcl_Obj *CONST objv[]
6710 ){
6711   struct Verb {
6712     const char *zName;
6713     int i;
6714   } aVerb[] = {
6715     { "SQLITE_TESTCTRL_LOCALTIME_FAULT",    SQLITE_TESTCTRL_LOCALTIME_FAULT },
6716     { "SQLITE_TESTCTRL_SORTER_MMAP",        SQLITE_TESTCTRL_SORTER_MMAP     },
6717     { "SQLITE_TESTCTRL_IMPOSTER",           SQLITE_TESTCTRL_IMPOSTER        },
6718     { "SQLITE_TESTCTRL_INTERNAL_FUNCTIONS", SQLITE_TESTCTRL_INTERNAL_FUNCTIONS},
6719   };
6720   int iVerb;
6721   int iFlag;
6722   int rc;
6723 
6724   if( objc<2 ){
6725     Tcl_WrongNumArgs(interp, 1, objv, "VERB ARGS...");
6726     return TCL_ERROR;
6727   }
6728 
6729   rc = Tcl_GetIndexFromObjStruct(
6730       interp, objv[1], aVerb, sizeof(aVerb[0]), "VERB", 0, &iVerb
6731   );
6732   if( rc!=TCL_OK ) return rc;
6733 
6734   iFlag = aVerb[iVerb].i;
6735   switch( iFlag ){
6736     case SQLITE_TESTCTRL_INTERNAL_FUNCTIONS:
6737     case SQLITE_TESTCTRL_LOCALTIME_FAULT: {
6738       int val;
6739       if( objc!=3 ){
6740         Tcl_WrongNumArgs(interp, 2, objv, "ONOFF");
6741         return TCL_ERROR;
6742       }
6743       if( Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
6744       sqlite3_test_control(iFlag, val);
6745       break;
6746     }
6747 
6748     case SQLITE_TESTCTRL_SORTER_MMAP: {
6749       int val;
6750       sqlite3 *db;
6751       if( objc!=4 ){
6752         Tcl_WrongNumArgs(interp, 2, objv, "DB LIMIT");
6753         return TCL_ERROR;
6754       }
6755       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
6756       if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
6757       sqlite3_test_control(SQLITE_TESTCTRL_SORTER_MMAP, db, val);
6758       break;
6759     }
6760 
6761     case SQLITE_TESTCTRL_IMPOSTER: {
6762       int onOff, tnum;
6763       const char *zDbName;
6764       sqlite3 *db;
6765       if( objc!=6 ){
6766         Tcl_WrongNumArgs(interp, 2, objv, "DB dbName onOff tnum");
6767         return TCL_ERROR;
6768       }
6769       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
6770       zDbName = Tcl_GetString(objv[3]);
6771       if( Tcl_GetIntFromObj(interp, objv[4], &onOff) ) return TCL_ERROR;
6772       if( Tcl_GetIntFromObj(interp, objv[5], &tnum) ) return TCL_ERROR;
6773       sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, zDbName, onOff, tnum);
6774       break;
6775     }
6776   }
6777 
6778   Tcl_ResetResult(interp);
6779   return TCL_OK;
6780 }
6781 
6782 #if SQLITE_OS_UNIX
6783 #include <sys/time.h>
6784 #include <sys/resource.h>
6785 
6786 static int SQLITE_TCLAPI test_getrusage(
6787   void * clientData,
6788   Tcl_Interp *interp,
6789   int objc,
6790   Tcl_Obj *CONST objv[]
6791 ){
6792   char buf[1024];
6793   struct rusage r;
6794   memset(&r, 0, sizeof(r));
6795   getrusage(RUSAGE_SELF, &r);
6796 
6797   sqlite3_snprintf(sizeof(buf), buf,
6798     "ru_utime=%d.%06d ru_stime=%d.%06d ru_minflt=%d ru_majflt=%d",
6799     (int)r.ru_utime.tv_sec, (int)r.ru_utime.tv_usec,
6800     (int)r.ru_stime.tv_sec, (int)r.ru_stime.tv_usec,
6801     (int)r.ru_minflt, (int)r.ru_majflt
6802   );
6803   Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, -1));
6804   return TCL_OK;
6805 }
6806 #endif
6807 
6808 #if SQLITE_OS_WIN
6809 /*
6810 ** Information passed from the main thread into the windows file locker
6811 ** background thread.
6812 */
6813 struct win32FileLocker {
6814   char *evName;       /* Name of event to signal thread startup */
6815   HANDLE h;           /* Handle of the file to be locked */
6816   int delay1;         /* Delay before locking */
6817   int delay2;         /* Delay before unlocking */
6818   int ok;             /* Finished ok */
6819   int err;            /* True if an error occurs */
6820 };
6821 #endif
6822 
6823 
6824 #if SQLITE_OS_WIN
6825 #include <process.h>
6826 /*
6827 ** The background thread that does file locking.
6828 */
6829 static void SQLITE_CDECL win32_file_locker(void *pAppData){
6830   struct win32FileLocker *p = (struct win32FileLocker*)pAppData;
6831   if( p->evName ){
6832     HANDLE ev = OpenEvent(EVENT_MODIFY_STATE, FALSE, p->evName);
6833     if ( ev ){
6834       SetEvent(ev);
6835       CloseHandle(ev);
6836     }
6837   }
6838   if( p->delay1 ) Sleep(p->delay1);
6839   if( LockFile(p->h, 0, 0, 100000000, 0) ){
6840     Sleep(p->delay2);
6841     UnlockFile(p->h, 0, 0, 100000000, 0);
6842     p->ok = 1;
6843   }else{
6844     p->err = 1;
6845   }
6846   CloseHandle(p->h);
6847   p->h = 0;
6848   p->delay1 = 0;
6849   p->delay2 = 0;
6850 }
6851 #endif
6852 
6853 #if SQLITE_OS_WIN
6854 /*
6855 **      lock_win32_file FILENAME DELAY1 DELAY2
6856 **
6857 ** Get an exclusive manditory lock on file for DELAY2 milliseconds.
6858 ** Wait DELAY1 milliseconds before acquiring the lock.
6859 */
6860 static int SQLITE_TCLAPI win32_file_lock(
6861   void * clientData,
6862   Tcl_Interp *interp,
6863   int objc,
6864   Tcl_Obj *CONST objv[]
6865 ){
6866   static struct win32FileLocker x = { "win32_file_lock", 0, 0, 0, 0, 0 };
6867   const char *zFilename;
6868   char zBuf[200];
6869   int retry = 0;
6870   HANDLE ev;
6871   DWORD wResult;
6872 
6873   if( objc!=4 && objc!=1 ){
6874     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME DELAY1 DELAY2");
6875     return TCL_ERROR;
6876   }
6877   if( objc==1 ){
6878     sqlite3_snprintf(sizeof(zBuf), zBuf, "%d %d %d %d %d",
6879                      x.ok, x.err, x.delay1, x.delay2, x.h);
6880     Tcl_AppendResult(interp, zBuf, (char*)0);
6881     return TCL_OK;
6882   }
6883   while( x.h && retry<30 ){
6884     retry++;
6885     Sleep(100);
6886   }
6887   if( x.h ){
6888     Tcl_AppendResult(interp, "busy", (char*)0);
6889     return TCL_ERROR;
6890   }
6891   if( Tcl_GetIntFromObj(interp, objv[2], &x.delay1) ) return TCL_ERROR;
6892   if( Tcl_GetIntFromObj(interp, objv[3], &x.delay2) ) return TCL_ERROR;
6893   zFilename = Tcl_GetString(objv[1]);
6894   x.h = CreateFile(zFilename, GENERIC_READ|GENERIC_WRITE,
6895               FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_ALWAYS,
6896               FILE_ATTRIBUTE_NORMAL, 0);
6897   if( !x.h ){
6898     Tcl_AppendResult(interp, "cannot open file: ", zFilename, (char*)0);
6899     return TCL_ERROR;
6900   }
6901   ev = CreateEvent(NULL, TRUE, FALSE, x.evName);
6902   if ( !ev ){
6903     Tcl_AppendResult(interp, "cannot create event: ", x.evName, (char*)0);
6904     return TCL_ERROR;
6905   }
6906   _beginthread(win32_file_locker, 0, (void*)&x);
6907   Sleep(0);
6908   if ( (wResult = WaitForSingleObject(ev, 10000))!=WAIT_OBJECT_0 ){
6909     sqlite3_snprintf(sizeof(zBuf), zBuf, "0x%x", wResult);
6910     Tcl_AppendResult(interp, "wait failed: ", zBuf, (char*)0);
6911     CloseHandle(ev);
6912     return TCL_ERROR;
6913   }
6914   CloseHandle(ev);
6915   return TCL_OK;
6916 }
6917 
6918 /*
6919 **      exists_win32_path PATH
6920 **
6921 ** Returns non-zero if the specified path exists, whose fully qualified name
6922 ** may exceed 260 characters if it is prefixed with "\\?\".
6923 */
6924 static int SQLITE_TCLAPI win32_exists_path(
6925   void *clientData,
6926   Tcl_Interp *interp,
6927   int objc,
6928   Tcl_Obj *CONST objv[]
6929 ){
6930   if( objc!=2 ){
6931     Tcl_WrongNumArgs(interp, 1, objv, "PATH");
6932     return TCL_ERROR;
6933   }
6934   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(
6935       GetFileAttributesW( Tcl_GetUnicode(objv[1]))!=INVALID_FILE_ATTRIBUTES ));
6936   return TCL_OK;
6937 }
6938 
6939 /*
6940 **      find_win32_file PATTERN
6941 **
6942 ** Returns a list of entries in a directory that match the specified pattern,
6943 ** whose fully qualified name may exceed 248 characters if it is prefixed with
6944 ** "\\?\".
6945 */
6946 static int SQLITE_TCLAPI win32_find_file(
6947   void *clientData,
6948   Tcl_Interp *interp,
6949   int objc,
6950   Tcl_Obj *CONST objv[]
6951 ){
6952   HANDLE hFindFile = INVALID_HANDLE_VALUE;
6953   WIN32_FIND_DATAW findData;
6954   Tcl_Obj *listObj;
6955   DWORD lastErrno;
6956   if( objc!=2 ){
6957     Tcl_WrongNumArgs(interp, 1, objv, "PATTERN");
6958     return TCL_ERROR;
6959   }
6960   hFindFile = FindFirstFileW(Tcl_GetUnicode(objv[1]), &findData);
6961   if( hFindFile==INVALID_HANDLE_VALUE ){
6962     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6963     return TCL_ERROR;
6964   }
6965   listObj = Tcl_NewObj();
6966   Tcl_IncrRefCount(listObj);
6967   do {
6968     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewUnicodeObj(
6969         findData.cFileName, -1));
6970     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewWideIntObj(
6971         findData.dwFileAttributes));
6972   } while( FindNextFileW(hFindFile, &findData) );
6973   lastErrno = GetLastError();
6974   if( lastErrno!=NO_ERROR && lastErrno!=ERROR_NO_MORE_FILES ){
6975     FindClose(hFindFile);
6976     Tcl_DecrRefCount(listObj);
6977     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6978     return TCL_ERROR;
6979   }
6980   FindClose(hFindFile);
6981   Tcl_SetObjResult(interp, listObj);
6982   return TCL_OK;
6983 }
6984 
6985 /*
6986 **      delete_win32_file FILENAME
6987 **
6988 ** Deletes the specified file, whose fully qualified name may exceed 260
6989 ** characters if it is prefixed with "\\?\".
6990 */
6991 static int SQLITE_TCLAPI win32_delete_file(
6992   void *clientData,
6993   Tcl_Interp *interp,
6994   int objc,
6995   Tcl_Obj *CONST objv[]
6996 ){
6997   if( objc!=2 ){
6998     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME");
6999     return TCL_ERROR;
7000   }
7001   if( !DeleteFileW(Tcl_GetUnicode(objv[1])) ){
7002     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
7003     return TCL_ERROR;
7004   }
7005   Tcl_ResetResult(interp);
7006   return TCL_OK;
7007 }
7008 
7009 /*
7010 **      make_win32_dir DIRECTORY
7011 **
7012 ** Creates the specified directory, whose fully qualified name may exceed 248
7013 ** characters if it is prefixed with "\\?\".
7014 */
7015 static int SQLITE_TCLAPI win32_mkdir(
7016   void *clientData,
7017   Tcl_Interp *interp,
7018   int objc,
7019   Tcl_Obj *CONST objv[]
7020 ){
7021   if( objc!=2 ){
7022     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
7023     return TCL_ERROR;
7024   }
7025   if( !CreateDirectoryW(Tcl_GetUnicode(objv[1]), NULL) ){
7026     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
7027     return TCL_ERROR;
7028   }
7029   Tcl_ResetResult(interp);
7030   return TCL_OK;
7031 }
7032 
7033 /*
7034 **      remove_win32_dir DIRECTORY
7035 **
7036 ** Removes the specified directory, whose fully qualified name may exceed 248
7037 ** characters if it is prefixed with "\\?\".
7038 */
7039 static int SQLITE_TCLAPI win32_rmdir(
7040   void *clientData,
7041   Tcl_Interp *interp,
7042   int objc,
7043   Tcl_Obj *CONST objv[]
7044 ){
7045   if( objc!=2 ){
7046     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
7047     return TCL_ERROR;
7048   }
7049   if( !RemoveDirectoryW(Tcl_GetUnicode(objv[1])) ){
7050     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
7051     return TCL_ERROR;
7052   }
7053   Tcl_ResetResult(interp);
7054   return TCL_OK;
7055 }
7056 #endif
7057 
7058 
7059 /*
7060 **      optimization_control DB OPT BOOLEAN
7061 **
7062 ** Enable or disable query optimizations using the sqlite3_test_control()
7063 ** interface.  Disable if BOOLEAN is false and enable if BOOLEAN is true.
7064 ** OPT is the name of the optimization to be disabled.
7065 */
7066 static int SQLITE_TCLAPI optimization_control(
7067   void * clientData,
7068   Tcl_Interp *interp,
7069   int objc,
7070   Tcl_Obj *CONST objv[]
7071 ){
7072   int i;
7073   sqlite3 *db;
7074   const char *zOpt;
7075   int onoff;
7076   int mask = 0;
7077   static const struct {
7078     const char *zOptName;
7079     int mask;
7080   } aOpt[] = {
7081     { "all",                 SQLITE_AllOpts        },
7082     { "none",                0                     },
7083     { "query-flattener",     SQLITE_QueryFlattener },
7084     { "groupby-order",       SQLITE_GroupByOrder   },
7085     { "factor-constants",    SQLITE_FactorOutConst },
7086     { "distinct-opt",        SQLITE_DistinctOpt    },
7087     { "cover-idx-scan",      SQLITE_CoverIdxScan   },
7088     { "order-by-idx-join",   SQLITE_OrderByIdxJoin },
7089     { "transitive",          SQLITE_Transitive     },
7090     { "omit-noop-join",      SQLITE_OmitNoopJoin   },
7091     { "stat3",               SQLITE_Stat34         },
7092     { "stat4",               SQLITE_Stat34         },
7093     { "skip-scan",           SQLITE_SkipScan       },
7094   };
7095 
7096   if( objc!=4 ){
7097     Tcl_WrongNumArgs(interp, 1, objv, "DB OPT BOOLEAN");
7098     return TCL_ERROR;
7099   }
7100   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7101   if( Tcl_GetBooleanFromObj(interp, objv[3], &onoff) ) return TCL_ERROR;
7102   zOpt = Tcl_GetString(objv[2]);
7103   for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
7104     if( strcmp(zOpt, aOpt[i].zOptName)==0 ){
7105       mask = aOpt[i].mask;
7106       break;
7107     }
7108   }
7109   if( onoff ) mask = ~mask;
7110   if( i>=sizeof(aOpt)/sizeof(aOpt[0]) ){
7111     Tcl_AppendResult(interp, "unknown optimization - should be one of:",
7112                      (char*)0);
7113     for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
7114       Tcl_AppendResult(interp, " ", aOpt[i].zOptName, (char*)0);
7115     }
7116     return TCL_ERROR;
7117   }
7118   sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, db, mask);
7119   return TCL_OK;
7120 }
7121 
7122 /*
7123 **     load_static_extension DB NAME ...
7124 **
7125 ** Load one or more statically linked extensions.
7126 */
7127 static int SQLITE_TCLAPI tclLoadStaticExtensionCmd(
7128   void * clientData,
7129   Tcl_Interp *interp,
7130   int objc,
7131   Tcl_Obj *CONST objv[]
7132 ){
7133   extern int sqlite3_amatch_init(sqlite3*,char**,const sqlite3_api_routines*);
7134   extern int sqlite3_carray_init(sqlite3*,char**,const sqlite3_api_routines*);
7135   extern int sqlite3_closure_init(sqlite3*,char**,const sqlite3_api_routines*);
7136   extern int sqlite3_csv_init(sqlite3*,char**,const sqlite3_api_routines*);
7137   extern int sqlite3_eval_init(sqlite3*,char**,const sqlite3_api_routines*);
7138   extern int sqlite3_explain_init(sqlite3*,char**,const sqlite3_api_routines*);
7139   extern int sqlite3_fileio_init(sqlite3*,char**,const sqlite3_api_routines*);
7140   extern int sqlite3_fuzzer_init(sqlite3*,char**,const sqlite3_api_routines*);
7141   extern int sqlite3_ieee_init(sqlite3*,char**,const sqlite3_api_routines*);
7142   extern int sqlite3_nextchar_init(sqlite3*,char**,const sqlite3_api_routines*);
7143   extern int sqlite3_percentile_init(sqlite3*,char**,const sqlite3_api_routines*);
7144   extern int sqlite3_regexp_init(sqlite3*,char**,const sqlite3_api_routines*);
7145   extern int sqlite3_remember_init(sqlite3*,char**,const sqlite3_api_routines*);
7146   extern int sqlite3_series_init(sqlite3*,char**,const sqlite3_api_routines*);
7147   extern int sqlite3_spellfix_init(sqlite3*,char**,const sqlite3_api_routines*);
7148   extern int sqlite3_totype_init(sqlite3*,char**,const sqlite3_api_routines*);
7149   extern int sqlite3_wholenumber_init(sqlite3*,char**,const sqlite3_api_routines*);
7150   extern int sqlite3_unionvtab_init(sqlite3*,char**,const sqlite3_api_routines*);
7151 #ifdef SQLITE_HAVE_ZLIB
7152   extern int sqlite3_zipfile_init(sqlite3*,char**,const sqlite3_api_routines*);
7153 #endif
7154   static const struct {
7155     const char *zExtName;
7156     int (*pInit)(sqlite3*,char**,const sqlite3_api_routines*);
7157   } aExtension[] = {
7158     { "amatch",                sqlite3_amatch_init               },
7159     { "carray",                sqlite3_carray_init               },
7160     { "closure",               sqlite3_closure_init              },
7161     { "csv",                   sqlite3_csv_init                  },
7162     { "eval",                  sqlite3_eval_init                 },
7163     { "explain",               sqlite3_explain_init              },
7164     { "fileio",                sqlite3_fileio_init               },
7165     { "fuzzer",                sqlite3_fuzzer_init               },
7166     { "ieee754",               sqlite3_ieee_init                 },
7167     { "nextchar",              sqlite3_nextchar_init             },
7168     { "percentile",            sqlite3_percentile_init           },
7169     { "regexp",                sqlite3_regexp_init               },
7170     { "remember",              sqlite3_remember_init             },
7171     { "series",                sqlite3_series_init               },
7172     { "spellfix",              sqlite3_spellfix_init             },
7173     { "totype",                sqlite3_totype_init               },
7174     { "unionvtab",             sqlite3_unionvtab_init            },
7175     { "wholenumber",           sqlite3_wholenumber_init          },
7176 #ifdef SQLITE_HAVE_ZLIB
7177     { "zipfile",               sqlite3_zipfile_init              },
7178 #endif
7179   };
7180   sqlite3 *db;
7181   const char *zName;
7182   int i, j, rc;
7183   char *zErrMsg = 0;
7184   if( objc<3 ){
7185     Tcl_WrongNumArgs(interp, 1, objv, "DB NAME ...");
7186     return TCL_ERROR;
7187   }
7188   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7189   for(j=2; j<objc; j++){
7190     zName = Tcl_GetString(objv[j]);
7191     for(i=0; i<ArraySize(aExtension); i++){
7192       if( strcmp(zName, aExtension[i].zExtName)==0 ) break;
7193     }
7194     if( i>=ArraySize(aExtension) ){
7195       Tcl_AppendResult(interp, "no such extension: ", zName, (char*)0);
7196       return TCL_ERROR;
7197     }
7198     if( aExtension[i].pInit ){
7199       rc = aExtension[i].pInit(db, &zErrMsg, 0);
7200     }else{
7201       rc = SQLITE_OK;
7202     }
7203     if( rc!=SQLITE_OK || zErrMsg ){
7204       Tcl_AppendResult(interp, "initialization of ", zName, " failed: ", zErrMsg,
7205                        (char*)0);
7206       sqlite3_free(zErrMsg);
7207       return TCL_ERROR;
7208     }
7209   }
7210   return TCL_OK;
7211 }
7212 
7213 /*
7214 **     sorter_test_fakeheap BOOL
7215 **
7216 */
7217 static int SQLITE_TCLAPI sorter_test_fakeheap(
7218   void * clientData,
7219   Tcl_Interp *interp,
7220   int objc,
7221   Tcl_Obj *CONST objv[]
7222 ){
7223   int bArg;
7224   if( objc!=2 ){
7225     Tcl_WrongNumArgs(interp, 1, objv, "BOOL");
7226     return TCL_ERROR;
7227   }
7228 
7229   if( Tcl_GetBooleanFromObj(interp, objv[1], &bArg) ){
7230     return TCL_ERROR;
7231   }
7232 
7233   if( bArg ){
7234     if( sqlite3GlobalConfig.pHeap==0 ){
7235       sqlite3GlobalConfig.pHeap = SQLITE_INT_TO_PTR(-1);
7236     }
7237   }else{
7238     if( sqlite3GlobalConfig.pHeap==SQLITE_INT_TO_PTR(-1) ){
7239       sqlite3GlobalConfig.pHeap = 0;
7240     }
7241   }
7242 
7243   Tcl_ResetResult(interp);
7244   return TCL_OK;
7245 }
7246 
7247 /*
7248 **     sorter_test_sort4_helper DB SQL1 NSTEP SQL2
7249 **
7250 ** Compile SQL statement $SQL1 and step it $NSTEP times. For each row,
7251 ** check that the leftmost and rightmost columns returned are both integers,
7252 ** and that both contain the same value.
7253 **
7254 ** Then execute statement $SQL2. Check that the statement returns the same
7255 ** set of integers in the same order as in the previous step (using $SQL1).
7256 */
7257 static int SQLITE_TCLAPI sorter_test_sort4_helper(
7258   void * clientData,
7259   Tcl_Interp *interp,
7260   int objc,
7261   Tcl_Obj *CONST objv[]
7262 ){
7263   const char *zSql1;
7264   const char *zSql2;
7265   int nStep;
7266   int iStep;
7267   unsigned int iCksum1 = 0;
7268   unsigned int iCksum2 = 0;
7269   int rc;
7270   int iB;
7271   sqlite3 *db;
7272   sqlite3_stmt *pStmt;
7273 
7274   if( objc!=5 ){
7275     Tcl_WrongNumArgs(interp, 1, objv, "DB SQL1 NSTEP SQL2");
7276     return TCL_ERROR;
7277   }
7278 
7279   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7280   zSql1 = Tcl_GetString(objv[2]);
7281   if( Tcl_GetIntFromObj(interp, objv[3], &nStep) ) return TCL_ERROR;
7282   zSql2 = Tcl_GetString(objv[4]);
7283 
7284   rc = sqlite3_prepare_v2(db, zSql1, -1, &pStmt, 0);
7285   if( rc!=SQLITE_OK ) goto sql_error;
7286 
7287   iB = sqlite3_column_count(pStmt)-1;
7288   for(iStep=0; iStep<nStep && SQLITE_ROW==sqlite3_step(pStmt); iStep++){
7289     int a = sqlite3_column_int(pStmt, 0);
7290     if( a!=sqlite3_column_int(pStmt, iB) ){
7291       Tcl_AppendResult(interp, "data error: (a!=b)", 0);
7292       return TCL_ERROR;
7293     }
7294 
7295     iCksum1 += (iCksum1 << 3) + (unsigned int)a;
7296   }
7297   rc = sqlite3_finalize(pStmt);
7298   if( rc!=SQLITE_OK ) goto sql_error;
7299 
7300   rc = sqlite3_prepare_v2(db, zSql2, -1, &pStmt, 0);
7301   if( rc!=SQLITE_OK ) goto sql_error;
7302   for(iStep=0; SQLITE_ROW==sqlite3_step(pStmt); iStep++){
7303     int a = sqlite3_column_int(pStmt, 0);
7304     iCksum2 += (iCksum2 << 3) + (unsigned int)a;
7305   }
7306   rc = sqlite3_finalize(pStmt);
7307   if( rc!=SQLITE_OK ) goto sql_error;
7308 
7309   if( iCksum1!=iCksum2 ){
7310     Tcl_AppendResult(interp, "checksum mismatch", 0);
7311     return TCL_ERROR;
7312   }
7313 
7314   return TCL_OK;
7315  sql_error:
7316   Tcl_AppendResult(interp, "sql error: ", sqlite3_errmsg(db), 0);
7317   return TCL_ERROR;
7318 }
7319 
7320 
7321 #ifdef SQLITE_USER_AUTHENTICATION
7322 #include "sqlite3userauth.h"
7323 /*
7324 ** tclcmd:  sqlite3_user_authenticate DB USERNAME PASSWORD
7325 */
7326 static int SQLITE_TCLAPI test_user_authenticate(
7327   ClientData clientData, /* Unused */
7328   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7329   int objc,              /* Number of arguments */
7330   Tcl_Obj *CONST objv[]  /* Command arguments */
7331 ){
7332   char *zUser = 0;
7333   char *zPasswd = 0;
7334   int nPasswd = 0;
7335   sqlite3 *db;
7336   int rc;
7337 
7338   if( objc!=4 ){
7339     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD");
7340     return TCL_ERROR;
7341   }
7342   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7343     return TCL_ERROR;
7344   }
7345   zUser = Tcl_GetString(objv[2]);
7346   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7347   rc = sqlite3_user_authenticate(db, zUser, zPasswd, nPasswd);
7348   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7349   return TCL_OK;
7350 }
7351 #endif /* SQLITE_USER_AUTHENTICATION */
7352 
7353 #ifdef SQLITE_USER_AUTHENTICATION
7354 /*
7355 ** tclcmd:  sqlite3_user_add DB USERNAME PASSWORD ISADMIN
7356 */
7357 static int SQLITE_TCLAPI test_user_add(
7358   ClientData clientData, /* Unused */
7359   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7360   int objc,              /* Number of arguments */
7361   Tcl_Obj *CONST objv[]  /* Command arguments */
7362 ){
7363   char *zUser = 0;
7364   char *zPasswd = 0;
7365   int nPasswd = 0;
7366   int isAdmin = 0;
7367   sqlite3 *db;
7368   int rc;
7369 
7370   if( objc!=5 ){
7371     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
7372     return TCL_ERROR;
7373   }
7374   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7375     return TCL_ERROR;
7376   }
7377   zUser = Tcl_GetString(objv[2]);
7378   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7379   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
7380   rc = sqlite3_user_add(db, zUser, zPasswd, nPasswd, isAdmin);
7381   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7382   return TCL_OK;
7383 }
7384 #endif /* SQLITE_USER_AUTHENTICATION */
7385 
7386 #ifdef SQLITE_USER_AUTHENTICATION
7387 /*
7388 ** tclcmd:  sqlite3_user_change DB USERNAME PASSWORD ISADMIN
7389 */
7390 static int SQLITE_TCLAPI test_user_change(
7391   ClientData clientData, /* Unused */
7392   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7393   int objc,              /* Number of arguments */
7394   Tcl_Obj *CONST objv[]  /* Command arguments */
7395 ){
7396   char *zUser = 0;
7397   char *zPasswd = 0;
7398   int nPasswd = 0;
7399   int isAdmin = 0;
7400   sqlite3 *db;
7401   int rc;
7402 
7403   if( objc!=5 ){
7404     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
7405     return TCL_ERROR;
7406   }
7407   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7408     return TCL_ERROR;
7409   }
7410   zUser = Tcl_GetString(objv[2]);
7411   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7412   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
7413   rc = sqlite3_user_change(db, zUser, zPasswd, nPasswd, isAdmin);
7414   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7415   return TCL_OK;
7416 }
7417 #endif /* SQLITE_USER_AUTHENTICATION */
7418 
7419 #ifdef SQLITE_USER_AUTHENTICATION
7420 /*
7421 ** tclcmd:  sqlite3_user_delete DB USERNAME
7422 */
7423 static int SQLITE_TCLAPI test_user_delete(
7424   ClientData clientData, /* Unused */
7425   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7426   int objc,              /* Number of arguments */
7427   Tcl_Obj *CONST objv[]  /* Command arguments */
7428 ){
7429   char *zUser = 0;
7430   sqlite3 *db;
7431   int rc;
7432 
7433   if( objc!=3 ){
7434     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME");
7435     return TCL_ERROR;
7436   }
7437   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7438     return TCL_ERROR;
7439   }
7440   zUser = Tcl_GetString(objv[2]);
7441   rc = sqlite3_user_delete(db, zUser);
7442   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7443   return TCL_OK;
7444 }
7445 #endif /* SQLITE_USER_AUTHENTICATION */
7446 
7447 /*
7448 ** tclcmd: bad_behavior TYPE
7449 **
7450 ** Do some things that should trigger a valgrind or -fsanitize=undefined
7451 ** warning.  This is used to verify that errors and warnings output by those
7452 ** tools are detected by the test scripts.
7453 **
7454 **       TYPE       BEHAVIOR
7455 **       1          Overflow a signed integer
7456 **       2          Jump based on an uninitialized variable
7457 **       3          Read after free
7458 **       4          Panic
7459 */
7460 static int SQLITE_TCLAPI test_bad_behavior(
7461   ClientData clientData, /* Pointer to an integer containing zero */
7462   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7463   int objc,              /* Number of arguments */
7464   Tcl_Obj *CONST objv[]  /* Command arguments */
7465 ){
7466   int iType;
7467   int xyz;
7468   int i = *(int*)clientData;
7469   int j;
7470   int w[10];
7471   int *a;
7472   if( objc!=2 ){
7473     Tcl_WrongNumArgs(interp, 1, objv, "TYPE");
7474     return TCL_ERROR;
7475   }
7476   if( Tcl_GetIntFromObj(interp, objv[1], &iType) ) return TCL_ERROR;
7477   switch( iType ){
7478     case 1: {
7479       xyz = 0x7fffff00 - i;
7480       xyz += 0x100;
7481       Tcl_SetObjResult(interp, Tcl_NewIntObj(xyz));
7482       break;
7483     }
7484     case 2: {
7485       w[1] = 5;
7486       if( w[i]>0 ) w[1]++;
7487       Tcl_SetObjResult(interp, Tcl_NewIntObj(w[1]));
7488       break;
7489     }
7490     case 3: {
7491       a = malloc( sizeof(int)*10 );
7492       for(j=0; j<10; j++) a[j] = j;
7493       free(a);
7494       Tcl_SetObjResult(interp, Tcl_NewIntObj(a[i]));
7495       break;
7496     }
7497     case 4: {
7498       Tcl_Panic("Deliberate panic");
7499       break;
7500     }
7501   }
7502   return TCL_OK;
7503 }
7504 
7505 /*
7506 ** tclcmd:   register_dbstat_vtab DB
7507 **
7508 ** Cause the dbstat virtual table to be available on the connection DB
7509 */
7510 static int SQLITE_TCLAPI test_register_dbstat_vtab(
7511   void *clientData,
7512   Tcl_Interp *interp,
7513   int objc,
7514   Tcl_Obj *CONST objv[]
7515 ){
7516 #ifdef SQLITE_OMIT_VIRTUALTABLE
7517   Tcl_AppendResult(interp, "dbstat not available because of "
7518                            "SQLITE_OMIT_VIRTUALTABLE", (void*)0);
7519   return TCL_ERROR;
7520 #else
7521   struct SqliteDb { sqlite3 *db; };
7522   char *zDb;
7523   Tcl_CmdInfo cmdInfo;
7524 
7525   if( objc!=2 ){
7526     Tcl_WrongNumArgs(interp, 1, objv, "DB");
7527     return TCL_ERROR;
7528   }
7529 
7530   zDb = Tcl_GetString(objv[1]);
7531   if( Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
7532     sqlite3* db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
7533     sqlite3DbstatRegister(db);
7534   }
7535   return TCL_OK;
7536 #endif /* SQLITE_OMIT_VIRTUALTABLE */
7537 }
7538 
7539 /*
7540 ** tclcmd:   sqlite3_db_config DB SETTING VALUE
7541 **
7542 ** Invoke sqlite3_db_config() for one of the setting values.
7543 */
7544 static int SQLITE_TCLAPI test_sqlite3_db_config(
7545   void *clientData,
7546   Tcl_Interp *interp,
7547   int objc,
7548   Tcl_Obj *CONST objv[]
7549 ){
7550   static const struct {
7551     const char *zName;
7552     int eVal;
7553   } aSetting[] = {
7554     { "FKEY",            SQLITE_DBCONFIG_ENABLE_FKEY },
7555     { "TRIGGER",         SQLITE_DBCONFIG_ENABLE_TRIGGER },
7556     { "FTS3_TOKENIZER",  SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
7557     { "LOAD_EXTENSION",  SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
7558     { "NO_CKPT_ON_CLOSE",SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE },
7559     { "QPSG",            SQLITE_DBCONFIG_ENABLE_QPSG },
7560     { "TRIGGER_EQP",     SQLITE_DBCONFIG_TRIGGER_EQP },
7561     { "RESET_DB",        SQLITE_DBCONFIG_RESET_DATABASE },
7562     { "DEFENSIVE",       SQLITE_DBCONFIG_DEFENSIVE },
7563   };
7564   int i;
7565   int v;
7566   const char *zSetting;
7567   sqlite3 *db;
7568 
7569   if( objc!=4 ){
7570     Tcl_WrongNumArgs(interp, 1, objv, "DB SETTING VALUE");
7571     return TCL_ERROR;
7572   }
7573   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7574   zSetting = Tcl_GetString(objv[2]);
7575   if( sqlite3_strglob("SQLITE_*", zSetting)==0 ) zSetting += 7;
7576   if( sqlite3_strglob("DBCONFIG_*", zSetting)==0 ) zSetting += 9;
7577   if( sqlite3_strglob("ENABLE_*", zSetting)==0 ) zSetting += 7;
7578   for(i=0; i<ArraySize(aSetting); i++){
7579     if( strcmp(zSetting, aSetting[i].zName)==0 ) break;
7580   }
7581   if( i>=ArraySize(aSetting) ){
7582     Tcl_SetObjResult(interp,
7583       Tcl_NewStringObj("unknown sqlite3_db_config setting", -1));
7584     return TCL_ERROR;
7585   }
7586   if( Tcl_GetIntFromObj(interp, objv[3], &v) ) return TCL_ERROR;
7587   sqlite3_db_config(db, aSetting[i].eVal, v, &v);
7588   Tcl_SetObjResult(interp, Tcl_NewIntObj(v));
7589   return TCL_OK;
7590 }
7591 
7592 /*
7593 ** Change the name of the main database schema from "main" to "icecube".
7594 */
7595 static int SQLITE_TCLAPI test_dbconfig_maindbname_icecube(
7596   void * clientData,
7597   Tcl_Interp *interp,
7598   int objc,
7599   Tcl_Obj *CONST objv[]
7600 ){
7601   int rc;
7602   sqlite3 *db;
7603   extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
7604   if( objc!=2 ){
7605     Tcl_WrongNumArgs(interp, 1, objv, "DB");
7606     return TCL_ERROR;
7607   }else{
7608     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7609     rc = sqlite3_db_config(db, SQLITE_DBCONFIG_MAINDBNAME, "icecube");
7610     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
7611     return TCL_OK;
7612   }
7613 }
7614 
7615 /*
7616 ** Usage: sqlite3_mmap_warm DB DBNAME
7617 */
7618 static int SQLITE_TCLAPI test_mmap_warm(
7619   void * clientData,
7620   Tcl_Interp *interp,
7621   int objc,
7622   Tcl_Obj *CONST objv[]
7623 ){
7624   extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
7625   extern int sqlite3_mmap_warm(sqlite3 *db, const char *);
7626 
7627   if( objc!=2 && objc!=3 ){
7628     Tcl_WrongNumArgs(interp, 1, objv, "DB ?DBNAME?");
7629     return TCL_ERROR;
7630   }else{
7631     int rc;
7632     sqlite3 *db;
7633     const char *zDb = 0;
7634     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7635     if( objc==3 ){
7636       zDb = Tcl_GetString(objv[2]);
7637     }
7638     rc = sqlite3_mmap_warm(db, zDb);
7639     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
7640     return TCL_OK;
7641   }
7642 }
7643 
7644 /*
7645 ** Register commands with the TCL interpreter.
7646 */
7647 int Sqlitetest1_Init(Tcl_Interp *interp){
7648   extern int sqlite3_search_count;
7649   extern int sqlite3_found_count;
7650   extern int sqlite3_interrupt_count;
7651   extern int sqlite3_open_file_count;
7652   extern int sqlite3_sort_count;
7653   extern int sqlite3_current_time;
7654 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
7655   extern int sqlite3_hostid_num;
7656 #endif
7657   extern int sqlite3_max_blobsize;
7658   extern int SQLITE_TCLAPI sqlite3BtreeSharedCacheReport(void*,
7659                                           Tcl_Interp*,int,Tcl_Obj*CONST*);
7660   static int iZero = 0;
7661   static struct {
7662      char *zName;
7663      Tcl_CmdProc *xProc;
7664   } aCmd[] = {
7665      { "db_enter",                      (Tcl_CmdProc*)db_enter               },
7666      { "db_leave",                      (Tcl_CmdProc*)db_leave               },
7667      { "sqlite3_mprintf_int",           (Tcl_CmdProc*)sqlite3_mprintf_int    },
7668      { "sqlite3_mprintf_int64",         (Tcl_CmdProc*)sqlite3_mprintf_int64  },
7669      { "sqlite3_mprintf_long",          (Tcl_CmdProc*)sqlite3_mprintf_long   },
7670      { "sqlite3_mprintf_str",           (Tcl_CmdProc*)sqlite3_mprintf_str    },
7671      { "sqlite3_snprintf_str",          (Tcl_CmdProc*)sqlite3_snprintf_str   },
7672      { "sqlite3_mprintf_stronly",       (Tcl_CmdProc*)sqlite3_mprintf_stronly},
7673      { "sqlite3_mprintf_double",        (Tcl_CmdProc*)sqlite3_mprintf_double },
7674      { "sqlite3_mprintf_scaled",        (Tcl_CmdProc*)sqlite3_mprintf_scaled },
7675      { "sqlite3_mprintf_hexdouble",   (Tcl_CmdProc*)sqlite3_mprintf_hexdouble},
7676      { "sqlite3_mprintf_z_test",        (Tcl_CmdProc*)test_mprintf_z        },
7677      { "sqlite3_mprintf_n_test",        (Tcl_CmdProc*)test_mprintf_n        },
7678      { "sqlite3_snprintf_int",          (Tcl_CmdProc*)test_snprintf_int     },
7679      { "sqlite3_last_insert_rowid",     (Tcl_CmdProc*)test_last_rowid       },
7680      { "sqlite3_exec_printf",           (Tcl_CmdProc*)test_exec_printf      },
7681      { "sqlite3_exec_hex",              (Tcl_CmdProc*)test_exec_hex         },
7682      { "sqlite3_exec",                  (Tcl_CmdProc*)test_exec             },
7683      { "sqlite3_exec_nr",               (Tcl_CmdProc*)test_exec_nr          },
7684 #ifndef SQLITE_OMIT_GET_TABLE
7685      { "sqlite3_get_table_printf",      (Tcl_CmdProc*)test_get_table_printf },
7686 #endif
7687      { "sqlite3_close",                 (Tcl_CmdProc*)sqlite_test_close     },
7688      { "sqlite3_close_v2",              (Tcl_CmdProc*)sqlite_test_close_v2  },
7689      { "sqlite3_create_function",       (Tcl_CmdProc*)test_create_function  },
7690      { "sqlite3_create_aggregate",      (Tcl_CmdProc*)test_create_aggregate },
7691      { "sqlite_register_test_function", (Tcl_CmdProc*)test_register_func    },
7692      { "sqlite_abort",                  (Tcl_CmdProc*)sqlite_abort          },
7693      { "sqlite_bind",                   (Tcl_CmdProc*)test_bind             },
7694      { "breakpoint",                    (Tcl_CmdProc*)test_breakpoint       },
7695      { "sqlite3_key",                   (Tcl_CmdProc*)test_key              },
7696      { "sqlite3_rekey",                 (Tcl_CmdProc*)test_rekey            },
7697      { "sqlite_set_magic",              (Tcl_CmdProc*)sqlite_set_magic      },
7698      { "sqlite3_interrupt",             (Tcl_CmdProc*)test_interrupt        },
7699      { "sqlite_delete_function",        (Tcl_CmdProc*)delete_function       },
7700      { "sqlite_delete_collation",       (Tcl_CmdProc*)delete_collation      },
7701      { "sqlite3_get_autocommit",        (Tcl_CmdProc*)get_autocommit        },
7702      { "sqlite3_busy_timeout",          (Tcl_CmdProc*)test_busy_timeout     },
7703      { "printf",                        (Tcl_CmdProc*)test_printf           },
7704      { "sqlite3IoTrace",              (Tcl_CmdProc*)test_io_trace         },
7705      { "clang_sanitize_address",        (Tcl_CmdProc*)clang_sanitize_address },
7706   };
7707   static struct {
7708      char *zName;
7709      Tcl_ObjCmdProc *xProc;
7710      void *clientData;
7711   } aObjCmd[] = {
7712      { "sqlite3_db_config",             test_sqlite3_db_config, 0 },
7713      { "bad_behavior",                  test_bad_behavior,  (void*)&iZero },
7714      { "register_dbstat_vtab",          test_register_dbstat_vtab  },
7715      { "sqlite3_connection_pointer",    get_sqlite_pointer, 0 },
7716      { "intarray_addr",                 test_intarray_addr, 0 },
7717      { "int64array_addr",               test_int64array_addr, 0 },
7718      { "doublearray_addr",              test_doublearray_addr, 0 },
7719      { "textarray_addr",                test_textarray_addr, 0 },
7720      { "sqlite3_bind_int",              test_bind_int,      0 },
7721      { "sqlite3_bind_zeroblob",         test_bind_zeroblob, 0 },
7722      { "sqlite3_bind_zeroblob64",       test_bind_zeroblob64, 0 },
7723      { "sqlite3_bind_int64",            test_bind_int64,    0 },
7724      { "sqlite3_bind_double",           test_bind_double,   0 },
7725      { "sqlite3_bind_null",             test_bind_null     ,0 },
7726      { "sqlite3_bind_text",             test_bind_text     ,0 },
7727      { "sqlite3_bind_text16",           test_bind_text16   ,0 },
7728      { "sqlite3_bind_blob",             test_bind_blob     ,0 },
7729      { "sqlite3_bind_parameter_count",  test_bind_parameter_count, 0},
7730      { "sqlite3_bind_parameter_name",   test_bind_parameter_name,  0},
7731      { "sqlite3_bind_parameter_index",  test_bind_parameter_index, 0},
7732      { "sqlite3_clear_bindings",        test_clear_bindings, 0},
7733      { "sqlite3_sleep",                 test_sleep,          0},
7734      { "sqlite3_errcode",               test_errcode       ,0 },
7735      { "sqlite3_extended_errcode",      test_ex_errcode    ,0 },
7736      { "sqlite3_errmsg",                test_errmsg        ,0 },
7737      { "sqlite3_errmsg16",              test_errmsg16      ,0 },
7738      { "sqlite3_open",                  test_open          ,0 },
7739      { "sqlite3_open16",                test_open16        ,0 },
7740      { "sqlite3_open_v2",               test_open_v2       ,0 },
7741      { "sqlite3_complete16",            test_complete16    ,0 },
7742      { "sqlite3_normalize",             test_normalize     ,0 },
7743 
7744      { "sqlite3_prepare",               test_prepare       ,0 },
7745      { "sqlite3_prepare16",             test_prepare16     ,0 },
7746      { "sqlite3_prepare_v2",            test_prepare_v2    ,0 },
7747      { "sqlite3_prepare_v3",            test_prepare_v3    ,0 },
7748      { "sqlite3_prepare_tkt3134",       test_prepare_tkt3134, 0},
7749      { "sqlite3_prepare16_v2",          test_prepare16_v2  ,0 },
7750      { "sqlite3_finalize",              test_finalize      ,0 },
7751      { "sqlite3_stmt_status",           test_stmt_status   ,0 },
7752      { "sqlite3_reset",                 test_reset         ,0 },
7753      { "sqlite3_expired",               test_expired       ,0 },
7754      { "sqlite3_transfer_bindings",     test_transfer_bind ,0 },
7755      { "sqlite3_changes",               test_changes       ,0 },
7756      { "sqlite3_step",                  test_step          ,0 },
7757      { "sqlite3_sql",                   test_sql           ,0 },
7758      { "sqlite3_expanded_sql",          test_ex_sql        ,0 },
7759 #ifdef SQLITE_ENABLE_NORMALIZE
7760      { "sqlite3_normalized_sql",        test_norm_sql      ,0 },
7761 #endif
7762      { "sqlite3_next_stmt",             test_next_stmt     ,0 },
7763      { "sqlite3_stmt_readonly",         test_stmt_readonly ,0 },
7764      { "sqlite3_stmt_busy",             test_stmt_busy     ,0 },
7765      { "uses_stmt_journal",             uses_stmt_journal ,0 },
7766 
7767      { "sqlite3_release_memory",        test_release_memory,     0},
7768      { "sqlite3_db_release_memory",     test_db_release_memory,  0},
7769      { "sqlite3_db_cacheflush",         test_db_cacheflush,      0},
7770      { "sqlite3_system_errno",          test_system_errno,       0},
7771      { "sqlite3_db_filename",           test_db_filename,        0},
7772      { "sqlite3_db_readonly",           test_db_readonly,        0},
7773      { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
7774      { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
7775      { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},
7776 
7777      { "sqlite3_load_extension",        test_load_extension,     0},
7778      { "sqlite3_enable_load_extension", test_enable_load,        0},
7779      { "sqlite3_extended_result_codes", test_extended_result_codes, 0},
7780      { "sqlite3_limit",                 test_limit,                 0},
7781      { "dbconfig_maindbname_icecube",   test_dbconfig_maindbname_icecube },
7782 
7783      { "save_prng_state",               save_prng_state,    0 },
7784      { "restore_prng_state",            restore_prng_state, 0 },
7785      { "reset_prng_state",              reset_prng_state,   0 },
7786      { "database_never_corrupt",        database_never_corrupt, 0},
7787      { "database_may_be_corrupt",       database_may_be_corrupt, 0},
7788      { "optimization_control",          optimization_control,0},
7789 #if SQLITE_OS_WIN
7790      { "lock_win32_file",               win32_file_lock,    0 },
7791      { "exists_win32_path",             win32_exists_path,  0 },
7792      { "find_win32_file",               win32_find_file,    0 },
7793      { "delete_win32_file",             win32_delete_file,  0 },
7794      { "make_win32_dir",                win32_mkdir,        0 },
7795      { "remove_win32_dir",              win32_rmdir,        0 },
7796 #endif
7797      { "tcl_objproc",                   runAsObjProc,       0 },
7798 
7799      /* sqlite3_column_*() API */
7800      { "sqlite3_column_count",          test_column_count  ,0 },
7801      { "sqlite3_data_count",            test_data_count    ,0 },
7802      { "sqlite3_column_type",           test_column_type   ,0 },
7803      { "sqlite3_column_blob",           test_column_blob   ,0 },
7804      { "sqlite3_column_double",         test_column_double ,0 },
7805      { "sqlite3_column_int64",          test_column_int64  ,0 },
7806      { "sqlite3_column_text",   test_stmt_utf8,  (void*)sqlite3_column_text },
7807      { "sqlite3_column_name",   test_stmt_utf8,  (void*)sqlite3_column_name },
7808      { "sqlite3_column_int",    test_stmt_int,   (void*)sqlite3_column_int  },
7809      { "sqlite3_column_bytes",  test_stmt_int,   (void*)sqlite3_column_bytes},
7810 #ifndef SQLITE_OMIT_DECLTYPE
7811      { "sqlite3_column_decltype",test_stmt_utf8,(void*)sqlite3_column_decltype},
7812 #endif
7813 #ifdef SQLITE_ENABLE_COLUMN_METADATA
7814 { "sqlite3_column_database_name",test_stmt_utf8,(void*)sqlite3_column_database_name},
7815 { "sqlite3_column_table_name",test_stmt_utf8,(void*)sqlite3_column_table_name},
7816 { "sqlite3_column_origin_name",test_stmt_utf8,(void*)sqlite3_column_origin_name},
7817 #endif
7818 
7819 #ifndef SQLITE_OMIT_UTF16
7820      { "sqlite3_column_bytes16", test_stmt_int, (void*)sqlite3_column_bytes16 },
7821      { "sqlite3_column_text16",  test_stmt_utf16, (void*)sqlite3_column_text16},
7822      { "sqlite3_column_name16",  test_stmt_utf16, (void*)sqlite3_column_name16},
7823      { "add_alignment_test_collations", add_alignment_test_collations, 0      },
7824 #ifndef SQLITE_OMIT_DECLTYPE
7825      { "sqlite3_column_decltype16",test_stmt_utf16,(void*)sqlite3_column_decltype16},
7826 #endif
7827 #ifdef SQLITE_ENABLE_COLUMN_METADATA
7828 {"sqlite3_column_database_name16",
7829   test_stmt_utf16, (void*)sqlite3_column_database_name16},
7830 {"sqlite3_column_table_name16", test_stmt_utf16, (void*)sqlite3_column_table_name16},
7831 {"sqlite3_column_origin_name16", test_stmt_utf16, (void*)sqlite3_column_origin_name16},
7832 #endif
7833 #endif
7834      { "sqlite3_create_collation_v2", test_create_collation_v2, 0 },
7835      { "sqlite3_global_recover",     test_global_recover, 0   },
7836      { "working_64bit_int",          working_64bit_int,   0   },
7837      { "vfs_unlink_test",            vfs_unlink_test,     0   },
7838      { "vfs_initfail_test",          vfs_initfail_test,   0   },
7839      { "vfs_unregister_all",         vfs_unregister_all,  0   },
7840      { "vfs_reregister_all",         vfs_reregister_all,  0   },
7841      { "file_control_test",          file_control_test,   0   },
7842      { "file_control_lasterrno_test", file_control_lasterrno_test,  0   },
7843      { "file_control_lockproxy_test", file_control_lockproxy_test,  0   },
7844      { "file_control_chunksize_test", file_control_chunksize_test,  0   },
7845      { "file_control_sizehint_test",  file_control_sizehint_test,   0   },
7846      { "file_control_data_version",   file_control_data_version,    0   },
7847 #if SQLITE_OS_WIN
7848      { "file_control_win32_av_retry", file_control_win32_av_retry,  0   },
7849      { "file_control_win32_get_handle", file_control_win32_get_handle, 0  },
7850      { "file_control_win32_set_handle", file_control_win32_set_handle, 0  },
7851 #endif
7852      { "file_control_persist_wal",    file_control_persist_wal,     0   },
7853      { "file_control_powersafe_overwrite",file_control_powersafe_overwrite,0},
7854      { "file_control_vfsname",        file_control_vfsname,         0   },
7855      { "file_control_tempfilename",   file_control_tempfilename,    0   },
7856      { "sqlite3_vfs_list",           vfs_list,     0   },
7857      { "sqlite3_create_function_v2", test_create_function_v2, 0 },
7858 
7859      /* Functions from os.h */
7860 #ifndef SQLITE_OMIT_UTF16
7861      { "add_test_collate",        test_collate, 0            },
7862      { "add_test_collate_needed", test_collate_needed, 0     },
7863      { "add_test_function",       test_function, 0           },
7864      { "add_test_utf16bin_collate",    test_utf16bin_collate, 0        },
7865 #endif
7866      { "sqlite3_test_errstr",     test_errstr, 0             },
7867      { "tcl_variable_type",       tcl_variable_type, 0       },
7868 #ifndef SQLITE_OMIT_SHARED_CACHE
7869      { "sqlite3_enable_shared_cache", test_enable_shared, 0  },
7870      { "sqlite3_shared_cache_report", sqlite3BtreeSharedCacheReport, 0},
7871 #endif
7872      { "sqlite3_libversion_number", test_libversion_number, 0  },
7873      { "sqlite3_table_column_metadata", test_table_column_metadata, 0  },
7874 #ifndef SQLITE_OMIT_INCRBLOB
7875      { "sqlite3_blob_reopen", test_blob_reopen, 0  },
7876 #endif
7877      { "pcache_stats",       test_pcache_stats, 0  },
7878 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
7879      { "sqlite3_unlock_notify", test_unlock_notify, 0  },
7880 #endif
7881      { "sqlite3_wal_checkpoint",   test_wal_checkpoint, 0  },
7882      { "sqlite3_wal_checkpoint_v2",test_wal_checkpoint_v2, 0  },
7883      { "sqlite3_wal_autocheckpoint",test_wal_autocheckpoint, 0  },
7884      { "test_sqlite3_log",         test_sqlite3_log, 0  },
7885 #ifndef SQLITE_OMIT_EXPLAIN
7886      { "print_explain_query_plan", test_print_eqp, 0  },
7887 #endif
7888      { "sqlite3_test_control", test_test_control },
7889 #if SQLITE_OS_UNIX
7890      { "getrusage", test_getrusage },
7891 #endif
7892      { "load_static_extension", tclLoadStaticExtensionCmd },
7893      { "sorter_test_fakeheap", sorter_test_fakeheap },
7894      { "sorter_test_sort4_helper", sorter_test_sort4_helper },
7895 #ifdef SQLITE_USER_AUTHENTICATION
7896      { "sqlite3_user_authenticate", test_user_authenticate, 0 },
7897      { "sqlite3_user_add",          test_user_add,          0 },
7898      { "sqlite3_user_change",       test_user_change,       0 },
7899      { "sqlite3_user_delete",       test_user_delete,       0 },
7900 #endif
7901 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
7902      { "sqlite3_stmt_scanstatus",       test_stmt_scanstatus,   0 },
7903      { "sqlite3_stmt_scanstatus_reset", test_stmt_scanstatus_reset,   0 },
7904 #endif
7905 #ifdef SQLITE_ENABLE_SQLLOG
7906      { "sqlite3_config_sqllog",         test_config_sqllog,   0 },
7907 #endif
7908      { "vfs_current_time_int64",           vfsCurrentTimeInt64,   0 },
7909 #ifdef SQLITE_ENABLE_SNAPSHOT
7910      { "sqlite3_snapshot_get", test_snapshot_get, 0 },
7911      { "sqlite3_snapshot_open", test_snapshot_open, 0 },
7912      { "sqlite3_snapshot_free", test_snapshot_free, 0 },
7913      { "sqlite3_snapshot_cmp", test_snapshot_cmp, 0 },
7914      { "sqlite3_snapshot_recover", test_snapshot_recover, 0 },
7915      { "sqlite3_snapshot_get_blob", test_snapshot_get_blob, 0 },
7916      { "sqlite3_snapshot_open_blob", test_snapshot_open_blob, 0 },
7917      { "sqlite3_snapshot_cmp_blob", test_snapshot_cmp_blob, 0 },
7918 #endif
7919      { "sqlite3_delete_database", test_delete_database,    0 },
7920      { "atomic_batch_write",      test_atomic_batch_write, 0 },
7921      { "sqlite3_mmap_warm",       test_mmap_warm,          0 },
7922      { "sqlite3_config_sorterref", test_config_sorterref,   0 },
7923   };
7924   static int bitmask_size = sizeof(Bitmask)*8;
7925   static int longdouble_size = sizeof(LONGDOUBLE_TYPE);
7926   int i;
7927   extern int sqlite3_sync_count, sqlite3_fullsync_count;
7928   extern int sqlite3_opentemp_count;
7929   extern int sqlite3_like_count;
7930   extern int sqlite3_xferopt_count;
7931   extern int sqlite3_pager_readdb_count;
7932   extern int sqlite3_pager_writedb_count;
7933   extern int sqlite3_pager_writej_count;
7934 #if SQLITE_OS_WIN
7935   extern LONG volatile sqlite3_os_type;
7936 #endif
7937 #ifdef SQLITE_DEBUG
7938   extern int sqlite3WhereTrace;
7939   extern int sqlite3OSTrace;
7940   extern int sqlite3WalTrace;
7941 #endif
7942 #ifdef SQLITE_TEST
7943 #ifdef SQLITE_ENABLE_FTS3
7944   extern int sqlite3_fts3_enable_parentheses;
7945 #endif
7946 #endif
7947 #if defined(SQLITE_ENABLE_SELECTTRACE)
7948   extern int sqlite3SelectTrace;
7949 #endif
7950 
7951   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
7952     Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
7953   }
7954   for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
7955     Tcl_CreateObjCommand(interp, aObjCmd[i].zName,
7956         aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
7957   }
7958   Tcl_LinkVar(interp, "sqlite_search_count",
7959       (char*)&sqlite3_search_count, TCL_LINK_INT);
7960   Tcl_LinkVar(interp, "sqlite_found_count",
7961       (char*)&sqlite3_found_count, TCL_LINK_INT);
7962   Tcl_LinkVar(interp, "sqlite_sort_count",
7963       (char*)&sqlite3_sort_count, TCL_LINK_INT);
7964   Tcl_LinkVar(interp, "sqlite3_max_blobsize",
7965       (char*)&sqlite3_max_blobsize, TCL_LINK_INT);
7966   Tcl_LinkVar(interp, "sqlite_like_count",
7967       (char*)&sqlite3_like_count, TCL_LINK_INT);
7968   Tcl_LinkVar(interp, "sqlite_interrupt_count",
7969       (char*)&sqlite3_interrupt_count, TCL_LINK_INT);
7970   Tcl_LinkVar(interp, "sqlite_open_file_count",
7971       (char*)&sqlite3_open_file_count, TCL_LINK_INT);
7972   Tcl_LinkVar(interp, "sqlite_current_time",
7973       (char*)&sqlite3_current_time, TCL_LINK_INT);
7974 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
7975   Tcl_LinkVar(interp, "sqlite_hostid_num",
7976       (char*)&sqlite3_hostid_num, TCL_LINK_INT);
7977 #endif
7978   Tcl_LinkVar(interp, "sqlite3_xferopt_count",
7979       (char*)&sqlite3_xferopt_count, TCL_LINK_INT);
7980   Tcl_LinkVar(interp, "sqlite3_pager_readdb_count",
7981       (char*)&sqlite3_pager_readdb_count, TCL_LINK_INT);
7982   Tcl_LinkVar(interp, "sqlite3_pager_writedb_count",
7983       (char*)&sqlite3_pager_writedb_count, TCL_LINK_INT);
7984   Tcl_LinkVar(interp, "sqlite3_pager_writej_count",
7985       (char*)&sqlite3_pager_writej_count, TCL_LINK_INT);
7986 #ifndef SQLITE_OMIT_UTF16
7987   Tcl_LinkVar(interp, "unaligned_string_counter",
7988       (char*)&unaligned_string_counter, TCL_LINK_INT);
7989 #endif
7990 #ifndef SQLITE_OMIT_UTF16
7991   Tcl_LinkVar(interp, "sqlite_last_needed_collation",
7992       (char*)&pzNeededCollation, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
7993 #endif
7994 #if SQLITE_OS_WIN
7995   Tcl_LinkVar(interp, "sqlite_os_type",
7996       (char*)&sqlite3_os_type, TCL_LINK_LONG);
7997 #endif
7998 #ifdef SQLITE_TEST
7999   {
8000     static const char *query_plan = "*** OBSOLETE VARIABLE ***";
8001     Tcl_LinkVar(interp, "sqlite_query_plan",
8002        (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
8003   }
8004 #endif
8005 #ifdef SQLITE_DEBUG
8006   Tcl_LinkVar(interp, "sqlite_where_trace",
8007       (char*)&sqlite3WhereTrace, TCL_LINK_INT);
8008   Tcl_LinkVar(interp, "sqlite_os_trace",
8009       (char*)&sqlite3OSTrace, TCL_LINK_INT);
8010 #ifndef SQLITE_OMIT_WAL
8011   Tcl_LinkVar(interp, "sqlite_wal_trace",
8012       (char*)&sqlite3WalTrace, TCL_LINK_INT);
8013 #endif
8014 #endif
8015 #ifndef SQLITE_OMIT_DISKIO
8016   Tcl_LinkVar(interp, "sqlite_opentemp_count",
8017       (char*)&sqlite3_opentemp_count, TCL_LINK_INT);
8018 #endif
8019   Tcl_LinkVar(interp, "sqlite_static_bind_value",
8020       (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
8021   Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
8022       (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);
8023   Tcl_LinkVar(interp, "sqlite_temp_directory",
8024       (char*)&sqlite3_temp_directory, TCL_LINK_STRING);
8025   Tcl_LinkVar(interp, "sqlite_data_directory",
8026       (char*)&sqlite3_data_directory, TCL_LINK_STRING);
8027   Tcl_LinkVar(interp, "bitmask_size",
8028       (char*)&bitmask_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
8029   Tcl_LinkVar(interp, "longdouble_size",
8030       (char*)&longdouble_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
8031   Tcl_LinkVar(interp, "sqlite_sync_count",
8032       (char*)&sqlite3_sync_count, TCL_LINK_INT);
8033   Tcl_LinkVar(interp, "sqlite_fullsync_count",
8034       (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
8035 #if defined(SQLITE_ENABLE_SELECTTRACE)
8036   Tcl_LinkVar(interp, "sqlite3SelectTrace",
8037       (char*)&sqlite3SelectTrace, TCL_LINK_INT);
8038 #endif
8039 #if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
8040   Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
8041       (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
8042 #endif
8043   return TCL_OK;
8044 }
8045