xref: /sqlite-3.40.0/src/test1.c (revision 4b8035e6)
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: vfs_current_time_int64
2261 **
2262 ** Return the value returned by the default VFS's xCurrentTimeInt64 method.
2263 */
2264 static int SQLITE_TCLAPI vfsCurrentTimeInt64(
2265   void * clientData,
2266   Tcl_Interp *interp,
2267   int objc,
2268   Tcl_Obj *CONST objv[]
2269 ){
2270   i64 t;
2271   sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
2272   if( objc!=1 ){
2273     Tcl_WrongNumArgs(interp, 1, objv, "");
2274     return TCL_ERROR;
2275   }
2276   pVfs->xCurrentTimeInt64(pVfs, &t);
2277   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(t));
2278   return TCL_OK;
2279 }
2280 
2281 #ifdef SQLITE_ENABLE_SNAPSHOT
2282 /*
2283 ** Usage: sqlite3_snapshot_get DB DBNAME
2284 */
2285 static int SQLITE_TCLAPI test_snapshot_get(
2286   void * clientData,
2287   Tcl_Interp *interp,
2288   int objc,
2289   Tcl_Obj *CONST objv[]
2290 ){
2291   int rc;
2292   sqlite3 *db;
2293   char *zName;
2294   sqlite3_snapshot *pSnapshot = 0;
2295 
2296   if( objc!=3 ){
2297     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2298     return TCL_ERROR;
2299   }
2300   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2301   zName = Tcl_GetString(objv[2]);
2302 
2303   rc = sqlite3_snapshot_get(db, zName, &pSnapshot);
2304   if( rc!=SQLITE_OK ){
2305     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2306     return TCL_ERROR;
2307   }else{
2308     char zBuf[100];
2309     if( sqlite3TestMakePointerStr(interp, zBuf, pSnapshot) ) return TCL_ERROR;
2310     Tcl_SetObjResult(interp, Tcl_NewStringObj(zBuf, -1));
2311   }
2312   return TCL_OK;
2313 }
2314 #endif /* SQLITE_ENABLE_SNAPSHOT */
2315 
2316 #ifdef SQLITE_ENABLE_SNAPSHOT
2317 /*
2318 ** Usage: sqlite3_snapshot_recover DB DBNAME
2319 */
2320 static int SQLITE_TCLAPI test_snapshot_recover(
2321   void * clientData,
2322   Tcl_Interp *interp,
2323   int objc,
2324   Tcl_Obj *CONST objv[]
2325 ){
2326   int rc;
2327   sqlite3 *db;
2328   char *zName;
2329 
2330   if( objc!=3 ){
2331     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2332     return TCL_ERROR;
2333   }
2334   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2335   zName = Tcl_GetString(objv[2]);
2336 
2337   rc = sqlite3_snapshot_recover(db, zName);
2338   if( rc!=SQLITE_OK ){
2339     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2340     return TCL_ERROR;
2341   }else{
2342     Tcl_ResetResult(interp);
2343   }
2344   return TCL_OK;
2345 }
2346 #endif /* SQLITE_ENABLE_SNAPSHOT */
2347 
2348 #ifdef SQLITE_ENABLE_SNAPSHOT
2349 /*
2350 ** Usage: sqlite3_snapshot_open DB DBNAME SNAPSHOT
2351 */
2352 static int SQLITE_TCLAPI test_snapshot_open(
2353   void * clientData,
2354   Tcl_Interp *interp,
2355   int objc,
2356   Tcl_Obj *CONST objv[]
2357 ){
2358   int rc;
2359   sqlite3 *db;
2360   char *zName;
2361   sqlite3_snapshot *pSnapshot;
2362 
2363   if( objc!=4 ){
2364     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SNAPSHOT");
2365     return TCL_ERROR;
2366   }
2367   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2368   zName = Tcl_GetString(objv[2]);
2369   pSnapshot = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[3]));
2370 
2371   rc = sqlite3_snapshot_open(db, zName, pSnapshot);
2372   if( rc!=SQLITE_OK ){
2373     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2374     return TCL_ERROR;
2375   }
2376   return TCL_OK;
2377 }
2378 #endif /* SQLITE_ENABLE_SNAPSHOT */
2379 
2380 #ifdef SQLITE_ENABLE_SNAPSHOT
2381 /*
2382 ** Usage: sqlite3_snapshot_free SNAPSHOT
2383 */
2384 static int SQLITE_TCLAPI test_snapshot_free(
2385   void * clientData,
2386   Tcl_Interp *interp,
2387   int objc,
2388   Tcl_Obj *CONST objv[]
2389 ){
2390   sqlite3_snapshot *pSnapshot;
2391   if( objc!=2 ){
2392     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT");
2393     return TCL_ERROR;
2394   }
2395   pSnapshot = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[1]));
2396   sqlite3_snapshot_free(pSnapshot);
2397   return TCL_OK;
2398 }
2399 #endif /* SQLITE_ENABLE_SNAPSHOT */
2400 
2401 #ifdef SQLITE_ENABLE_SNAPSHOT
2402 /*
2403 ** Usage: sqlite3_snapshot_cmp SNAPSHOT1 SNAPSHOT2
2404 */
2405 static int SQLITE_TCLAPI test_snapshot_cmp(
2406   void * clientData,
2407   Tcl_Interp *interp,
2408   int objc,
2409   Tcl_Obj *CONST objv[]
2410 ){
2411   int res;
2412   sqlite3_snapshot *p1;
2413   sqlite3_snapshot *p2;
2414   if( objc!=3 ){
2415     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT1 SNAPSHOT2");
2416     return TCL_ERROR;
2417   }
2418   p1 = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[1]));
2419   p2 = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[2]));
2420   res = sqlite3_snapshot_cmp(p1, p2);
2421   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
2422   return TCL_OK;
2423 }
2424 #endif /* SQLITE_ENABLE_SNAPSHOT */
2425 
2426 #ifdef SQLITE_ENABLE_SNAPSHOT
2427 /*
2428 ** Usage: sqlite3_snapshot_get_blob DB DBNAME
2429 */
2430 static int SQLITE_TCLAPI test_snapshot_get_blob(
2431   void * clientData,
2432   Tcl_Interp *interp,
2433   int objc,
2434   Tcl_Obj *CONST objv[]
2435 ){
2436   int rc;
2437   sqlite3 *db;
2438   char *zName;
2439   sqlite3_snapshot *pSnapshot = 0;
2440 
2441   if( objc!=3 ){
2442     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2443     return TCL_ERROR;
2444   }
2445   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2446   zName = Tcl_GetString(objv[2]);
2447 
2448   rc = sqlite3_snapshot_get(db, zName, &pSnapshot);
2449   if( rc!=SQLITE_OK ){
2450     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2451     return TCL_ERROR;
2452   }else{
2453     Tcl_SetObjResult(interp,
2454         Tcl_NewByteArrayObj((unsigned char*)pSnapshot, sizeof(sqlite3_snapshot))
2455     );
2456     sqlite3_snapshot_free(pSnapshot);
2457   }
2458   return TCL_OK;
2459 }
2460 #endif /* SQLITE_ENABLE_SNAPSHOT */
2461 
2462 #ifdef SQLITE_ENABLE_SNAPSHOT
2463   /*
2464   ** Usage: sqlite3_snapshot_open_blob DB DBNAME SNAPSHOT
2465 */
2466 static int SQLITE_TCLAPI test_snapshot_open_blob(
2467   void * clientData,
2468   Tcl_Interp *interp,
2469   int objc,
2470   Tcl_Obj *CONST objv[]
2471 ){
2472   int rc;
2473   sqlite3 *db;
2474   char *zName;
2475   unsigned char *pBlob;
2476   int nBlob;
2477 
2478   if( objc!=4 ){
2479     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SNAPSHOT");
2480     return TCL_ERROR;
2481   }
2482   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2483   zName = Tcl_GetString(objv[2]);
2484   pBlob = Tcl_GetByteArrayFromObj(objv[3], &nBlob);
2485   if( nBlob!=sizeof(sqlite3_snapshot) ){
2486     Tcl_AppendResult(interp, "bad SNAPSHOT", 0);
2487     return TCL_ERROR;
2488   }
2489   rc = sqlite3_snapshot_open(db, zName, (sqlite3_snapshot*)pBlob);
2490   if( rc!=SQLITE_OK ){
2491     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2492     return TCL_ERROR;
2493   }
2494   return TCL_OK;
2495 }
2496 #endif /* SQLITE_ENABLE_SNAPSHOT */
2497 
2498 #ifdef SQLITE_ENABLE_SNAPSHOT
2499 /*
2500 ** Usage: sqlite3_snapshot_cmp_blob SNAPSHOT1 SNAPSHOT2
2501 */
2502 static int SQLITE_TCLAPI test_snapshot_cmp_blob(
2503   void * clientData,
2504   Tcl_Interp *interp,
2505   int objc,
2506   Tcl_Obj *CONST objv[]
2507 ){
2508   int res;
2509   unsigned char *p1;
2510   unsigned char *p2;
2511   int n1;
2512   int n2;
2513 
2514   if( objc!=3 ){
2515     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT1 SNAPSHOT2");
2516     return TCL_ERROR;
2517   }
2518 
2519   p1 = Tcl_GetByteArrayFromObj(objv[1], &n1);
2520   p2 = Tcl_GetByteArrayFromObj(objv[2], &n2);
2521 
2522   if( n1!=sizeof(sqlite3_snapshot) || n1!=n2 ){
2523     Tcl_AppendResult(interp, "bad SNAPSHOT", 0);
2524     return TCL_ERROR;
2525   }
2526 
2527   res = sqlite3_snapshot_cmp((sqlite3_snapshot*)p1, (sqlite3_snapshot*)p2);
2528   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
2529   return TCL_OK;
2530 }
2531 #endif /* SQLITE_ENABLE_SNAPSHOT */
2532 
2533 /*
2534 ** Usage: sqlite3_delete_database FILENAME
2535 */
2536 int sqlite3_delete_database(const char*);   /* in test_delete.c */
2537 static int SQLITE_TCLAPI test_delete_database(
2538   void * clientData,
2539   Tcl_Interp *interp,
2540   int objc,
2541   Tcl_Obj *CONST objv[]
2542 ){
2543   int rc;
2544   const char *zFile;
2545   if( objc!=2 ){
2546     Tcl_WrongNumArgs(interp, 1, objv, "FILE");
2547     return TCL_ERROR;
2548   }
2549   zFile = (const char*)Tcl_GetString(objv[1]);
2550   rc = sqlite3_delete_database(zFile);
2551 
2552   Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2553   return TCL_OK;
2554 }
2555 
2556 /*
2557 ** Usage:  sqlite3_next_stmt  DB  STMT
2558 **
2559 ** Return the next statment in sequence after STMT.
2560 */
2561 static int SQLITE_TCLAPI test_next_stmt(
2562   void * clientData,
2563   Tcl_Interp *interp,
2564   int objc,
2565   Tcl_Obj *CONST objv[]
2566 ){
2567   sqlite3_stmt *pStmt;
2568   sqlite3 *db = 0;
2569   char zBuf[50];
2570 
2571   if( objc!=3 ){
2572     Tcl_AppendResult(interp, "wrong # args: should be \"",
2573         Tcl_GetStringFromObj(objv[0], 0), " DB STMT", 0);
2574     return TCL_ERROR;
2575   }
2576 
2577   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2578   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt) ) return TCL_ERROR;
2579   pStmt = sqlite3_next_stmt(db, pStmt);
2580   if( pStmt ){
2581     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
2582     Tcl_AppendResult(interp, zBuf, 0);
2583   }
2584   return TCL_OK;
2585 }
2586 
2587 /*
2588 ** Usage:  sqlite3_stmt_readonly  STMT
2589 **
2590 ** Return true if STMT is a NULL pointer or a pointer to a statement
2591 ** that is guaranteed to leave the database unmodified.
2592 */
2593 static int SQLITE_TCLAPI test_stmt_readonly(
2594   void * clientData,
2595   Tcl_Interp *interp,
2596   int objc,
2597   Tcl_Obj *CONST objv[]
2598 ){
2599   sqlite3_stmt *pStmt;
2600   int rc;
2601 
2602   if( objc!=2 ){
2603     Tcl_AppendResult(interp, "wrong # args: should be \"",
2604         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2605     return TCL_ERROR;
2606   }
2607 
2608   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2609   rc = sqlite3_stmt_readonly(pStmt);
2610   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2611   return TCL_OK;
2612 }
2613 
2614 /*
2615 ** Usage:  sqlite3_stmt_busy  STMT
2616 **
2617 ** Return true if STMT is a non-NULL pointer to a statement
2618 ** that has been stepped but not to completion.
2619 */
2620 static int SQLITE_TCLAPI test_stmt_busy(
2621   void * clientData,
2622   Tcl_Interp *interp,
2623   int objc,
2624   Tcl_Obj *CONST objv[]
2625 ){
2626   sqlite3_stmt *pStmt;
2627   int rc;
2628 
2629   if( objc!=2 ){
2630     Tcl_AppendResult(interp, "wrong # args: should be \"",
2631         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2632     return TCL_ERROR;
2633   }
2634 
2635   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2636   rc = sqlite3_stmt_busy(pStmt);
2637   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2638   return TCL_OK;
2639 }
2640 
2641 /*
2642 ** Usage:  uses_stmt_journal  STMT
2643 **
2644 ** Return true if STMT uses a statement journal.
2645 */
2646 static int SQLITE_TCLAPI uses_stmt_journal(
2647   void * clientData,
2648   Tcl_Interp *interp,
2649   int objc,
2650   Tcl_Obj *CONST objv[]
2651 ){
2652   sqlite3_stmt *pStmt;
2653 
2654   if( objc!=2 ){
2655     Tcl_AppendResult(interp, "wrong # args: should be \"",
2656         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2657     return TCL_ERROR;
2658   }
2659 
2660   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2661   sqlite3_stmt_readonly(pStmt);
2662   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(((Vdbe *)pStmt)->usesStmtJournal));
2663   return TCL_OK;
2664 }
2665 
2666 
2667 /*
2668 ** Usage:  sqlite3_reset  STMT
2669 **
2670 ** Reset a statement handle.
2671 */
2672 static int SQLITE_TCLAPI test_reset(
2673   void * clientData,
2674   Tcl_Interp *interp,
2675   int objc,
2676   Tcl_Obj *CONST objv[]
2677 ){
2678   sqlite3_stmt *pStmt;
2679   int rc;
2680 
2681   if( objc!=2 ){
2682     Tcl_AppendResult(interp, "wrong # args: should be \"",
2683         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2684     return TCL_ERROR;
2685   }
2686 
2687   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2688 
2689   rc = sqlite3_reset(pStmt);
2690   if( pStmt && sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ){
2691     return TCL_ERROR;
2692   }
2693   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2694 /*
2695   if( rc ){
2696     return TCL_ERROR;
2697   }
2698 */
2699   return TCL_OK;
2700 }
2701 
2702 /*
2703 ** Usage:  sqlite3_expired STMT
2704 **
2705 ** Return TRUE if a recompilation of the statement is recommended.
2706 */
2707 static int SQLITE_TCLAPI test_expired(
2708   void * clientData,
2709   Tcl_Interp *interp,
2710   int objc,
2711   Tcl_Obj *CONST objv[]
2712 ){
2713 #ifndef SQLITE_OMIT_DEPRECATED
2714   sqlite3_stmt *pStmt;
2715   if( objc!=2 ){
2716     Tcl_AppendResult(interp, "wrong # args: should be \"",
2717         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2718     return TCL_ERROR;
2719   }
2720   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2721   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(sqlite3_expired(pStmt)));
2722 #endif
2723   return TCL_OK;
2724 }
2725 
2726 /*
2727 ** Usage:  sqlite3_transfer_bindings FROMSTMT TOSTMT
2728 **
2729 ** Transfer all bindings from FROMSTMT over to TOSTMT
2730 */
2731 static int SQLITE_TCLAPI test_transfer_bind(
2732   void * clientData,
2733   Tcl_Interp *interp,
2734   int objc,
2735   Tcl_Obj *CONST objv[]
2736 ){
2737 #ifndef SQLITE_OMIT_DEPRECATED
2738   sqlite3_stmt *pStmt1, *pStmt2;
2739   if( objc!=3 ){
2740     Tcl_AppendResult(interp, "wrong # args: should be \"",
2741         Tcl_GetStringFromObj(objv[0], 0), " FROM-STMT TO-STMT", 0);
2742     return TCL_ERROR;
2743   }
2744   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt1)) return TCL_ERROR;
2745   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt2)) return TCL_ERROR;
2746   Tcl_SetObjResult(interp,
2747      Tcl_NewIntObj(sqlite3_transfer_bindings(pStmt1,pStmt2)));
2748 #endif
2749   return TCL_OK;
2750 }
2751 
2752 /*
2753 ** Usage:  sqlite3_changes DB
2754 **
2755 ** Return the number of changes made to the database by the last SQL
2756 ** execution.
2757 */
2758 static int SQLITE_TCLAPI test_changes(
2759   void * clientData,
2760   Tcl_Interp *interp,
2761   int objc,
2762   Tcl_Obj *CONST objv[]
2763 ){
2764   sqlite3 *db;
2765   if( objc!=2 ){
2766     Tcl_AppendResult(interp, "wrong # args: should be \"",
2767        Tcl_GetString(objv[0]), " DB", 0);
2768     return TCL_ERROR;
2769   }
2770   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2771   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_changes(db)));
2772   return TCL_OK;
2773 }
2774 
2775 /*
2776 ** This is the "static_bind_value" that variables are bound to when
2777 ** the FLAG option of sqlite3_bind is "static"
2778 */
2779 static char *sqlite_static_bind_value = 0;
2780 static int sqlite_static_bind_nbyte = 0;
2781 
2782 /*
2783 ** Usage:  sqlite3_bind  VM  IDX  VALUE  FLAGS
2784 **
2785 ** Sets the value of the IDX-th occurrence of "?" in the original SQL
2786 ** string.  VALUE is the new value.  If FLAGS=="null" then VALUE is
2787 ** ignored and the value is set to NULL.  If FLAGS=="static" then
2788 ** the value is set to the value of a static variable named
2789 ** "sqlite_static_bind_value".  If FLAGS=="normal" then a copy
2790 ** of the VALUE is made.  If FLAGS=="blob10" then a VALUE is ignored
2791 ** an a 10-byte blob "abc\000xyz\000pq" is inserted.
2792 */
2793 static int SQLITE_TCLAPI test_bind(
2794   void *NotUsed,
2795   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2796   int argc,              /* Number of arguments */
2797   char **argv            /* Text of each argument */
2798 ){
2799   sqlite3_stmt *pStmt;
2800   int rc;
2801   int idx;
2802   if( argc!=5 ){
2803     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2804        " VM IDX VALUE (null|static|normal)\"", 0);
2805     return TCL_ERROR;
2806   }
2807   if( getStmtPointer(interp, argv[1], &pStmt) ) return TCL_ERROR;
2808   if( Tcl_GetInt(interp, argv[2], &idx) ) return TCL_ERROR;
2809   if( strcmp(argv[4],"null")==0 ){
2810     rc = sqlite3_bind_null(pStmt, idx);
2811   }else if( strcmp(argv[4],"static")==0 ){
2812     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value, -1, 0);
2813   }else if( strcmp(argv[4],"static-nbytes")==0 ){
2814     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value,
2815                                        sqlite_static_bind_nbyte, 0);
2816   }else if( strcmp(argv[4],"normal")==0 ){
2817     rc = sqlite3_bind_text(pStmt, idx, argv[3], -1, SQLITE_TRANSIENT);
2818   }else if( strcmp(argv[4],"blob10")==0 ){
2819     rc = sqlite3_bind_text(pStmt, idx, "abc\000xyz\000pq", 10, SQLITE_STATIC);
2820   }else{
2821     Tcl_AppendResult(interp, "4th argument should be "
2822         "\"null\" or \"static\" or \"normal\"", 0);
2823     return TCL_ERROR;
2824   }
2825   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2826   if( rc ){
2827     char zBuf[50];
2828     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
2829     Tcl_AppendResult(interp, zBuf, sqlite3ErrStr(rc), 0);
2830     return TCL_ERROR;
2831   }
2832   return TCL_OK;
2833 }
2834 
2835 #ifndef SQLITE_OMIT_UTF16
2836 /*
2837 ** Usage: add_test_collate <db ptr> <utf8> <utf16le> <utf16be>
2838 **
2839 ** This function is used to test that SQLite selects the correct collation
2840 ** sequence callback when multiple versions (for different text encodings)
2841 ** are available.
2842 **
2843 ** Calling this routine registers the collation sequence "test_collate"
2844 ** with database handle <db>. The second argument must be a list of three
2845 ** boolean values. If the first is true, then a version of test_collate is
2846 ** registered for UTF-8, if the second is true, a version is registered for
2847 ** UTF-16le, if the third is true, a UTF-16be version is available.
2848 ** Previous versions of test_collate are deleted.
2849 **
2850 ** The collation sequence test_collate is implemented by calling the
2851 ** following TCL script:
2852 **
2853 **   "test_collate <enc> <lhs> <rhs>"
2854 **
2855 ** The <lhs> and <rhs> are the two values being compared, encoded in UTF-8.
2856 ** The <enc> parameter is the encoding of the collation function that
2857 ** SQLite selected to call. The TCL test script implements the
2858 ** "test_collate" proc.
2859 **
2860 ** Note that this will only work with one interpreter at a time, as the
2861 ** interp pointer to use when evaluating the TCL script is stored in
2862 ** pTestCollateInterp.
2863 */
2864 static Tcl_Interp* pTestCollateInterp;
2865 static int test_collate_func(
2866   void *pCtx,
2867   int nA, const void *zA,
2868   int nB, const void *zB
2869 ){
2870   Tcl_Interp *i = pTestCollateInterp;
2871   int encin = SQLITE_PTR_TO_INT(pCtx);
2872   int res;
2873   int n;
2874 
2875   sqlite3_value *pVal;
2876   Tcl_Obj *pX;
2877 
2878   pX = Tcl_NewStringObj("test_collate", -1);
2879   Tcl_IncrRefCount(pX);
2880 
2881   switch( encin ){
2882     case SQLITE_UTF8:
2883       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-8",-1));
2884       break;
2885     case SQLITE_UTF16LE:
2886       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16LE",-1));
2887       break;
2888     case SQLITE_UTF16BE:
2889       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16BE",-1));
2890       break;
2891     default:
2892       assert(0);
2893   }
2894 
2895   sqlite3BeginBenignMalloc();
2896   pVal = sqlite3ValueNew(0);
2897   if( pVal ){
2898     sqlite3ValueSetStr(pVal, nA, zA, encin, SQLITE_STATIC);
2899     n = sqlite3_value_bytes(pVal);
2900     Tcl_ListObjAppendElement(i,pX,
2901         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2902     sqlite3ValueSetStr(pVal, nB, zB, encin, SQLITE_STATIC);
2903     n = sqlite3_value_bytes(pVal);
2904     Tcl_ListObjAppendElement(i,pX,
2905         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2906     sqlite3ValueFree(pVal);
2907   }
2908   sqlite3EndBenignMalloc();
2909 
2910   Tcl_EvalObjEx(i, pX, 0);
2911   Tcl_DecrRefCount(pX);
2912   Tcl_GetIntFromObj(i, Tcl_GetObjResult(i), &res);
2913   return res;
2914 }
2915 static int SQLITE_TCLAPI test_collate(
2916   void * clientData,
2917   Tcl_Interp *interp,
2918   int objc,
2919   Tcl_Obj *CONST objv[]
2920 ){
2921   sqlite3 *db;
2922   int val;
2923   sqlite3_value *pVal;
2924   int rc;
2925 
2926   if( objc!=5 ) goto bad_args;
2927   pTestCollateInterp = interp;
2928   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2929 
2930   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2931   rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF8,
2932           (void *)SQLITE_UTF8, val?test_collate_func:0);
2933   if( rc==SQLITE_OK ){
2934     const void *zUtf16;
2935     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2936     rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF16LE,
2937             (void *)SQLITE_UTF16LE, val?test_collate_func:0);
2938     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
2939 
2940 #if 0
2941     if( sqlite3_iMallocFail>0 ){
2942       sqlite3_iMallocFail++;
2943     }
2944 #endif
2945     sqlite3_mutex_enter(db->mutex);
2946     pVal = sqlite3ValueNew(db);
2947     sqlite3ValueSetStr(pVal, -1, "test_collate", SQLITE_UTF8, SQLITE_STATIC);
2948     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
2949     if( db->mallocFailed ){
2950       rc = SQLITE_NOMEM;
2951     }else{
2952       rc = sqlite3_create_collation16(db, zUtf16, SQLITE_UTF16BE,
2953           (void *)SQLITE_UTF16BE, val?test_collate_func:0);
2954     }
2955     sqlite3ValueFree(pVal);
2956     sqlite3_mutex_leave(db->mutex);
2957   }
2958   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2959 
2960   if( rc!=SQLITE_OK ){
2961     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
2962     return TCL_ERROR;
2963   }
2964   return TCL_OK;
2965 
2966 bad_args:
2967   Tcl_AppendResult(interp, "wrong # args: should be \"",
2968       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
2969   return TCL_ERROR;
2970 }
2971 
2972 /*
2973 ** Usage: add_test_utf16bin_collate <db ptr>
2974 **
2975 ** Add a utf-16 collation sequence named "utf16bin" to the database
2976 ** handle. This collation sequence compares arguments in the same way as the
2977 ** built-in collation "binary".
2978 */
2979 static int test_utf16bin_collate_func(
2980   void *pCtx,
2981   int nA, const void *zA,
2982   int nB, const void *zB
2983 ){
2984   int nCmp = (nA>nB ? nB : nA);
2985   int res = memcmp(zA, zB, nCmp);
2986   if( res==0 ) res = nA - nB;
2987   return res;
2988 }
2989 static int SQLITE_TCLAPI test_utf16bin_collate(
2990   void * clientData,
2991   Tcl_Interp *interp,
2992   int objc,
2993   Tcl_Obj *CONST objv[]
2994 ){
2995   sqlite3 *db;
2996   int rc;
2997 
2998   if( objc!=2 ) goto bad_args;
2999   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3000 
3001   rc = sqlite3_create_collation(db, "utf16bin", SQLITE_UTF16, 0,
3002       test_utf16bin_collate_func
3003   );
3004   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3005   return TCL_OK;
3006 
3007 bad_args:
3008   Tcl_WrongNumArgs(interp, 1, objv, "DB");
3009   return TCL_ERROR;
3010 }
3011 
3012 /*
3013 ** When the collation needed callback is invoked, record the name of
3014 ** the requested collating function here.  The recorded name is linked
3015 ** to a TCL variable and used to make sure that the requested collation
3016 ** name is correct.
3017 */
3018 static char zNeededCollation[200];
3019 static char *pzNeededCollation = zNeededCollation;
3020 
3021 
3022 /*
3023 ** Called when a collating sequence is needed.  Registered using
3024 ** sqlite3_collation_needed16().
3025 */
3026 static void test_collate_needed_cb(
3027   void *pCtx,
3028   sqlite3 *db,
3029   int eTextRep,
3030   const void *pName
3031 ){
3032   int enc = ENC(db);
3033   int i;
3034   char *z;
3035   for(z = (char*)pName, i=0; *z || z[1]; z++){
3036     if( *z ) zNeededCollation[i++] = *z;
3037   }
3038   zNeededCollation[i] = 0;
3039   sqlite3_create_collation(
3040       db, "test_collate", ENC(db), SQLITE_INT_TO_PTR(enc), test_collate_func);
3041 }
3042 
3043 /*
3044 ** Usage: add_test_collate_needed DB
3045 */
3046 static int SQLITE_TCLAPI test_collate_needed(
3047   void * clientData,
3048   Tcl_Interp *interp,
3049   int objc,
3050   Tcl_Obj *CONST objv[]
3051 ){
3052   sqlite3 *db;
3053   int rc;
3054 
3055   if( objc!=2 ) goto bad_args;
3056   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3057   rc = sqlite3_collation_needed16(db, 0, test_collate_needed_cb);
3058   zNeededCollation[0] = 0;
3059   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3060   return TCL_OK;
3061 
3062 bad_args:
3063   Tcl_WrongNumArgs(interp, 1, objv, "DB");
3064   return TCL_ERROR;
3065 }
3066 
3067 /*
3068 ** tclcmd:   add_alignment_test_collations  DB
3069 **
3070 ** Add two new collating sequences to the database DB
3071 **
3072 **     utf16_aligned
3073 **     utf16_unaligned
3074 **
3075 ** Both collating sequences use the same sort order as BINARY.
3076 ** The only difference is that the utf16_aligned collating
3077 ** sequence is declared with the SQLITE_UTF16_ALIGNED flag.
3078 ** Both collating functions increment the unaligned utf16 counter
3079 ** whenever they see a string that begins on an odd byte boundary.
3080 */
3081 static int unaligned_string_counter = 0;
3082 static int alignmentCollFunc(
3083   void *NotUsed,
3084   int nKey1, const void *pKey1,
3085   int nKey2, const void *pKey2
3086 ){
3087   int rc, n;
3088   n = nKey1<nKey2 ? nKey1 : nKey2;
3089   if( nKey1>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey1))) ) unaligned_string_counter++;
3090   if( nKey2>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey2))) ) unaligned_string_counter++;
3091   rc = memcmp(pKey1, pKey2, n);
3092   if( rc==0 ){
3093     rc = nKey1 - nKey2;
3094   }
3095   return rc;
3096 }
3097 static int SQLITE_TCLAPI add_alignment_test_collations(
3098   void * clientData,
3099   Tcl_Interp *interp,
3100   int objc,
3101   Tcl_Obj *CONST objv[]
3102 ){
3103   sqlite3 *db;
3104   if( objc>=2 ){
3105     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3106     sqlite3_create_collation(db, "utf16_unaligned", SQLITE_UTF16,
3107         0, alignmentCollFunc);
3108     sqlite3_create_collation(db, "utf16_aligned", SQLITE_UTF16_ALIGNED,
3109         0, alignmentCollFunc);
3110   }
3111   return SQLITE_OK;
3112 }
3113 #endif /* !defined(SQLITE_OMIT_UTF16) */
3114 
3115 /*
3116 ** Usage: add_test_function <db ptr> <utf8> <utf16le> <utf16be>
3117 **
3118 ** This function is used to test that SQLite selects the correct user
3119 ** function callback when multiple versions (for different text encodings)
3120 ** are available.
3121 **
3122 ** Calling this routine registers up to three versions of the user function
3123 ** "test_function" with database handle <db>.  If the second argument is
3124 ** true, then a version of test_function is registered for UTF-8, if the
3125 ** third is true, a version is registered for UTF-16le, if the fourth is
3126 ** true, a UTF-16be version is available.  Previous versions of
3127 ** test_function are deleted.
3128 **
3129 ** The user function is implemented by calling the following TCL script:
3130 **
3131 **   "test_function <enc> <arg>"
3132 **
3133 ** Where <enc> is one of UTF-8, UTF-16LE or UTF16BE, and <arg> is the
3134 ** single argument passed to the SQL function. The value returned by
3135 ** the TCL script is used as the return value of the SQL function. It
3136 ** is passed to SQLite using UTF-16BE for a UTF-8 test_function(), UTF-8
3137 ** for a UTF-16LE test_function(), and UTF-16LE for an implementation that
3138 ** prefers UTF-16BE.
3139 */
3140 #ifndef SQLITE_OMIT_UTF16
3141 static void test_function_utf8(
3142   sqlite3_context *pCtx,
3143   int nArg,
3144   sqlite3_value **argv
3145 ){
3146   Tcl_Interp *interp;
3147   Tcl_Obj *pX;
3148   sqlite3_value *pVal;
3149   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3150   pX = Tcl_NewStringObj("test_function", -1);
3151   Tcl_IncrRefCount(pX);
3152   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-8", -1));
3153   Tcl_ListObjAppendElement(interp, pX,
3154       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3155   Tcl_EvalObjEx(interp, pX, 0);
3156   Tcl_DecrRefCount(pX);
3157   sqlite3_result_text(pCtx, Tcl_GetStringResult(interp), -1, SQLITE_TRANSIENT);
3158   pVal = sqlite3ValueNew(0);
3159   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3160       SQLITE_UTF8, SQLITE_STATIC);
3161   sqlite3_result_text16be(pCtx, sqlite3_value_text16be(pVal),
3162       -1, SQLITE_TRANSIENT);
3163   sqlite3ValueFree(pVal);
3164 }
3165 static void test_function_utf16le(
3166   sqlite3_context *pCtx,
3167   int nArg,
3168   sqlite3_value **argv
3169 ){
3170   Tcl_Interp *interp;
3171   Tcl_Obj *pX;
3172   sqlite3_value *pVal;
3173   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3174   pX = Tcl_NewStringObj("test_function", -1);
3175   Tcl_IncrRefCount(pX);
3176   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16LE", -1));
3177   Tcl_ListObjAppendElement(interp, pX,
3178       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3179   Tcl_EvalObjEx(interp, pX, 0);
3180   Tcl_DecrRefCount(pX);
3181   pVal = sqlite3ValueNew(0);
3182   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3183       SQLITE_UTF8, SQLITE_STATIC);
3184   sqlite3_result_text(pCtx,(char*)sqlite3_value_text(pVal),-1,SQLITE_TRANSIENT);
3185   sqlite3ValueFree(pVal);
3186 }
3187 static void test_function_utf16be(
3188   sqlite3_context *pCtx,
3189   int nArg,
3190   sqlite3_value **argv
3191 ){
3192   Tcl_Interp *interp;
3193   Tcl_Obj *pX;
3194   sqlite3_value *pVal;
3195   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3196   pX = Tcl_NewStringObj("test_function", -1);
3197   Tcl_IncrRefCount(pX);
3198   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16BE", -1));
3199   Tcl_ListObjAppendElement(interp, pX,
3200       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3201   Tcl_EvalObjEx(interp, pX, 0);
3202   Tcl_DecrRefCount(pX);
3203   pVal = sqlite3ValueNew(0);
3204   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3205       SQLITE_UTF8, SQLITE_STATIC);
3206   sqlite3_result_text16(pCtx, sqlite3_value_text16le(pVal),
3207       -1, SQLITE_TRANSIENT);
3208   sqlite3_result_text16be(pCtx, sqlite3_value_text16le(pVal),
3209       -1, SQLITE_TRANSIENT);
3210   sqlite3_result_text16le(pCtx, sqlite3_value_text16le(pVal),
3211       -1, SQLITE_TRANSIENT);
3212   sqlite3ValueFree(pVal);
3213 }
3214 #endif /* SQLITE_OMIT_UTF16 */
3215 static int SQLITE_TCLAPI test_function(
3216   void * clientData,
3217   Tcl_Interp *interp,
3218   int objc,
3219   Tcl_Obj *CONST objv[]
3220 ){
3221 #ifndef SQLITE_OMIT_UTF16
3222   sqlite3 *db;
3223   int val;
3224 
3225   if( objc!=5 ) goto bad_args;
3226   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3227 
3228   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
3229   if( val ){
3230     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF8,
3231         interp, test_function_utf8, 0, 0);
3232   }
3233   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
3234   if( val ){
3235     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16LE,
3236         interp, test_function_utf16le, 0, 0);
3237   }
3238   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
3239   if( val ){
3240     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16BE,
3241         interp, test_function_utf16be, 0, 0);
3242   }
3243 
3244   return TCL_OK;
3245 bad_args:
3246   Tcl_AppendResult(interp, "wrong # args: should be \"",
3247       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
3248 #endif /* SQLITE_OMIT_UTF16 */
3249   return TCL_ERROR;
3250 }
3251 
3252 /*
3253 ** Usage:         sqlite3_test_errstr <err code>
3254 **
3255 ** Test that the english language string equivalents for sqlite error codes
3256 ** are sane. The parameter is an integer representing an sqlite error code.
3257 ** The result is a list of two elements, the string representation of the
3258 ** error code and the english language explanation.
3259 */
3260 static int SQLITE_TCLAPI test_errstr(
3261   void * clientData,
3262   Tcl_Interp *interp,
3263   int objc,
3264   Tcl_Obj *CONST objv[]
3265 ){
3266   char *zCode;
3267   int i;
3268   if( objc!=1 ){
3269     Tcl_WrongNumArgs(interp, 1, objv, "<error code>");
3270   }
3271 
3272   zCode = Tcl_GetString(objv[1]);
3273   for(i=0; i<200; i++){
3274     if( 0==strcmp(t1ErrorName(i), zCode) ) break;
3275   }
3276   Tcl_SetResult(interp, (char *)sqlite3ErrStr(i), 0);
3277   return TCL_OK;
3278 }
3279 
3280 /*
3281 ** Usage:    breakpoint
3282 **
3283 ** This routine exists for one purpose - to provide a place to put a
3284 ** breakpoint with GDB that can be triggered using TCL code.  The use
3285 ** for this is when a particular test fails on (say) the 1485th iteration.
3286 ** In the TCL test script, we can add code like this:
3287 **
3288 **     if {$i==1485} breakpoint
3289 **
3290 ** Then run testfixture in the debugger and wait for the breakpoint to
3291 ** fire.  Then additional breakpoints can be set to trace down the bug.
3292 */
3293 static int SQLITE_TCLAPI test_breakpoint(
3294   void *NotUsed,
3295   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
3296   int argc,              /* Number of arguments */
3297   char **argv            /* Text of each argument */
3298 ){
3299   return TCL_OK;         /* Do nothing */
3300 }
3301 
3302 /*
3303 ** Usage:   sqlite3_bind_zeroblob  STMT IDX N
3304 **
3305 ** Test the sqlite3_bind_zeroblob interface.  STMT is a prepared statement.
3306 ** IDX is the index of a wildcard in the prepared statement.  This command
3307 ** binds a N-byte zero-filled BLOB to the wildcard.
3308 */
3309 static int SQLITE_TCLAPI test_bind_zeroblob(
3310   void * clientData,
3311   Tcl_Interp *interp,
3312   int objc,
3313   Tcl_Obj *CONST objv[]
3314 ){
3315   sqlite3_stmt *pStmt;
3316   int idx;
3317   int n;
3318   int rc;
3319 
3320   if( objc!=4 ){
3321     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
3322     return TCL_ERROR;
3323   }
3324 
3325   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3326   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3327   if( Tcl_GetIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3328 
3329   rc = sqlite3_bind_zeroblob(pStmt, idx, n);
3330   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3331   if( rc!=SQLITE_OK ){
3332     return TCL_ERROR;
3333   }
3334 
3335   return TCL_OK;
3336 }
3337 
3338 /*
3339 ** Usage:   sqlite3_bind_zeroblob64  STMT IDX N
3340 **
3341 ** Test the sqlite3_bind_zeroblob64 interface.  STMT is a prepared statement.
3342 ** IDX is the index of a wildcard in the prepared statement.  This command
3343 ** binds a N-byte zero-filled BLOB to the wildcard.
3344 */
3345 static int SQLITE_TCLAPI test_bind_zeroblob64(
3346   void * clientData,
3347   Tcl_Interp *interp,
3348   int objc,
3349   Tcl_Obj *CONST objv[]
3350 ){
3351   sqlite3_stmt *pStmt;
3352   int idx;
3353   Tcl_WideInt n;
3354   int rc;
3355 
3356   if( objc!=4 ){
3357     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
3358     return TCL_ERROR;
3359   }
3360 
3361   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3362   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3363   if( Tcl_GetWideIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3364 
3365   rc = sqlite3_bind_zeroblob64(pStmt, idx, n);
3366   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3367   if( rc!=SQLITE_OK ){
3368     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3369     return TCL_ERROR;
3370   }
3371 
3372   return TCL_OK;
3373 }
3374 
3375 /*
3376 ** Usage:   sqlite3_bind_int  STMT N VALUE
3377 **
3378 ** Test the sqlite3_bind_int interface.  STMT is a prepared statement.
3379 ** N is the index of a wildcard in the prepared statement.  This command
3380 ** binds a 32-bit integer VALUE to that wildcard.
3381 */
3382 static int SQLITE_TCLAPI test_bind_int(
3383   void * clientData,
3384   Tcl_Interp *interp,
3385   int objc,
3386   Tcl_Obj *CONST objv[]
3387 ){
3388   sqlite3_stmt *pStmt;
3389   int idx;
3390   int value;
3391   int rc;
3392 
3393   if( objc!=4 ){
3394     Tcl_AppendResult(interp, "wrong # args: should be \"",
3395         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3396     return TCL_ERROR;
3397   }
3398 
3399   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3400   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3401   if( Tcl_GetIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3402 
3403   rc = sqlite3_bind_int(pStmt, idx, value);
3404   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3405   if( rc!=SQLITE_OK ){
3406     return TCL_ERROR;
3407   }
3408 
3409   return TCL_OK;
3410 }
3411 
3412 
3413 /*
3414 ** Usage:   intarray_addr  INT  ...
3415 **
3416 ** Return the address of a C-language array of 32-bit integers.
3417 **
3418 ** Space to hold the array is obtained from malloc().  Call this procedure once
3419 ** with no arguments in order to release memory.  Each call to this procedure
3420 ** overwrites the previous array.
3421 */
3422 static int SQLITE_TCLAPI test_intarray_addr(
3423   void * clientData,
3424   Tcl_Interp *interp,
3425   int objc,
3426   Tcl_Obj *CONST objv[]
3427 ){
3428   int i;
3429   static int *p = 0;
3430 
3431   sqlite3_free(p);
3432   p = 0;
3433   if( objc>1 ){
3434     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3435     if( p==0 ) return TCL_ERROR;
3436     for(i=0; i<objc-1; i++){
3437       if( Tcl_GetIntFromObj(interp, objv[1+i], &p[i]) ){
3438         sqlite3_free(p);
3439         p = 0;
3440         return TCL_ERROR;
3441       }
3442     }
3443   }
3444   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3445   return TCL_OK;
3446 }
3447 /*
3448 ** Usage:   intarray_addr  INT  ...
3449 **
3450 ** Return the address of a C-language array of 32-bit integers.
3451 **
3452 ** Space to hold the array is obtained from malloc().  Call this procedure once
3453 ** with no arguments in order to release memory.  Each call to this procedure
3454 ** overwrites the previous array.
3455 */
3456 static int SQLITE_TCLAPI test_int64array_addr(
3457   void * clientData,
3458   Tcl_Interp *interp,
3459   int objc,
3460   Tcl_Obj *CONST objv[]
3461 ){
3462   int i;
3463   static sqlite3_int64 *p = 0;
3464 
3465   sqlite3_free(p);
3466   p = 0;
3467   if( objc>1 ){
3468     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3469     if( p==0 ) return TCL_ERROR;
3470     for(i=0; i<objc-1; i++){
3471       Tcl_WideInt v;
3472       if( Tcl_GetWideIntFromObj(interp, objv[1+i], &v) ){
3473         sqlite3_free(p);
3474         p = 0;
3475         return TCL_ERROR;
3476       }
3477       p[i] = v;
3478     }
3479   }
3480   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3481   return TCL_OK;
3482 }
3483 /*
3484 ** Usage:   doublearray_addr  INT  ...
3485 **
3486 ** Return the address of a C-language array of doubles.
3487 **
3488 ** Space to hold the array is obtained from malloc().  Call this procedure once
3489 ** with no arguments in order to release memory.  Each call to this procedure
3490 ** overwrites the previous array.
3491 */
3492 static int SQLITE_TCLAPI test_doublearray_addr(
3493   void * clientData,
3494   Tcl_Interp *interp,
3495   int objc,
3496   Tcl_Obj *CONST objv[]
3497 ){
3498   int i;
3499   static double *p = 0;
3500 
3501   sqlite3_free(p);
3502   p = 0;
3503   if( objc>1 ){
3504     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3505     if( p==0 ) return TCL_ERROR;
3506     for(i=0; i<objc-1; i++){
3507       if( Tcl_GetDoubleFromObj(interp, objv[1+i], &p[i]) ){
3508         sqlite3_free(p);
3509         p = 0;
3510         return TCL_ERROR;
3511       }
3512     }
3513   }
3514   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3515   return TCL_OK;
3516 }
3517 /*
3518 ** Usage:   textarray_addr  TEXT ...
3519 **
3520 ** Return the address of a C-language array of strings.
3521 **
3522 ** Space to hold the array is obtained from malloc().  Call this procedure once
3523 ** with no arguments in order to release memory.  Each call to this procedure
3524 ** overwrites the previous array.
3525 */
3526 static int SQLITE_TCLAPI test_textarray_addr(
3527   void * clientData,
3528   Tcl_Interp *interp,
3529   int objc,
3530   Tcl_Obj *CONST objv[]
3531 ){
3532   int i;
3533   static int n = 0;
3534   static char **p = 0;
3535 
3536   for(i=0; i<n; i++) sqlite3_free(p[i]);
3537   sqlite3_free(p);
3538   p = 0;
3539   if( objc>1 ){
3540     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3541     if( p==0 ) return TCL_ERROR;
3542     for(i=0; i<objc-1; i++){
3543       p[i] = sqlite3_mprintf("%s", Tcl_GetString(objv[1+i]));
3544     }
3545   }
3546   n = objc-1;
3547   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3548   return TCL_OK;
3549 }
3550 
3551 
3552 /*
3553 ** Usage:   sqlite3_bind_int64  STMT N VALUE
3554 **
3555 ** Test the sqlite3_bind_int64 interface.  STMT is a prepared statement.
3556 ** N is the index of a wildcard in the prepared statement.  This command
3557 ** binds a 64-bit integer VALUE to that wildcard.
3558 */
3559 static int SQLITE_TCLAPI test_bind_int64(
3560   void * clientData,
3561   Tcl_Interp *interp,
3562   int objc,
3563   Tcl_Obj *CONST objv[]
3564 ){
3565   sqlite3_stmt *pStmt;
3566   int idx;
3567   Tcl_WideInt value;
3568   int rc;
3569 
3570   if( objc!=4 ){
3571     Tcl_AppendResult(interp, "wrong # args: should be \"",
3572         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3573     return TCL_ERROR;
3574   }
3575 
3576   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3577   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3578   if( Tcl_GetWideIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3579 
3580   rc = sqlite3_bind_int64(pStmt, idx, value);
3581   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3582   if( rc!=SQLITE_OK ){
3583     return TCL_ERROR;
3584   }
3585 
3586   return TCL_OK;
3587 }
3588 
3589 
3590 /*
3591 ** Usage:   sqlite3_bind_double  STMT N VALUE
3592 **
3593 ** Test the sqlite3_bind_double interface.  STMT is a prepared statement.
3594 ** N is the index of a wildcard in the prepared statement.  This command
3595 ** binds a 64-bit integer VALUE to that wildcard.
3596 */
3597 static int SQLITE_TCLAPI test_bind_double(
3598   void * clientData,
3599   Tcl_Interp *interp,
3600   int objc,
3601   Tcl_Obj *CONST objv[]
3602 ){
3603   sqlite3_stmt *pStmt;
3604   int idx;
3605   double value = 0;
3606   int rc;
3607   const char *zVal;
3608   int i;
3609   static const struct {
3610     const char *zName;     /* Name of the special floating point value */
3611     unsigned int iUpper;   /* Upper 32 bits */
3612     unsigned int iLower;   /* Lower 32 bits */
3613   } aSpecialFp[] = {
3614     {  "NaN",      0x7fffffff, 0xffffffff },
3615     {  "SNaN",     0x7ff7ffff, 0xffffffff },
3616     {  "-NaN",     0xffffffff, 0xffffffff },
3617     {  "-SNaN",    0xfff7ffff, 0xffffffff },
3618     {  "+Inf",     0x7ff00000, 0x00000000 },
3619     {  "-Inf",     0xfff00000, 0x00000000 },
3620     {  "Epsilon",  0x00000000, 0x00000001 },
3621     {  "-Epsilon", 0x80000000, 0x00000001 },
3622     {  "NaN0",     0x7ff80000, 0x00000000 },
3623     {  "-NaN0",    0xfff80000, 0x00000000 },
3624   };
3625 
3626   if( objc!=4 ){
3627     Tcl_AppendResult(interp, "wrong # args: should be \"",
3628         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3629     return TCL_ERROR;
3630   }
3631 
3632   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3633   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3634 
3635   /* Intercept the string "NaN" and generate a NaN value for it.
3636   ** All other strings are passed through to Tcl_GetDoubleFromObj().
3637   ** Tcl_GetDoubleFromObj() should understand "NaN" but some versions
3638   ** contain a bug.
3639   */
3640   zVal = Tcl_GetString(objv[3]);
3641   for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
3642     if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
3643       sqlite3_uint64 x;
3644       x = aSpecialFp[i].iUpper;
3645       x <<= 32;
3646       x |= aSpecialFp[i].iLower;
3647       assert( sizeof(value)==8 );
3648       assert( sizeof(x)==8 );
3649       memcpy(&value, &x, 8);
3650       break;
3651     }
3652   }
3653   if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
3654          Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
3655     return TCL_ERROR;
3656   }
3657   rc = sqlite3_bind_double(pStmt, idx, value);
3658   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3659   if( rc!=SQLITE_OK ){
3660     return TCL_ERROR;
3661   }
3662 
3663   return TCL_OK;
3664 }
3665 
3666 /*
3667 ** Usage:   sqlite3_bind_null  STMT N
3668 **
3669 ** Test the sqlite3_bind_null interface.  STMT is a prepared statement.
3670 ** N is the index of a wildcard in the prepared statement.  This command
3671 ** binds a NULL to the wildcard.
3672 */
3673 static int SQLITE_TCLAPI test_bind_null(
3674   void * clientData,
3675   Tcl_Interp *interp,
3676   int objc,
3677   Tcl_Obj *CONST objv[]
3678 ){
3679   sqlite3_stmt *pStmt;
3680   int idx;
3681   int rc;
3682 
3683   if( objc!=3 ){
3684     Tcl_AppendResult(interp, "wrong # args: should be \"",
3685         Tcl_GetStringFromObj(objv[0], 0), " STMT N", 0);
3686     return TCL_ERROR;
3687   }
3688 
3689   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3690   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3691 
3692   rc = sqlite3_bind_null(pStmt, idx);
3693   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3694   if( rc!=SQLITE_OK ){
3695     return TCL_ERROR;
3696   }
3697 
3698   return TCL_OK;
3699 }
3700 
3701 /*
3702 ** Usage:   sqlite3_bind_text  STMT N STRING BYTES
3703 **
3704 ** Test the sqlite3_bind_text interface.  STMT is a prepared statement.
3705 ** N is the index of a wildcard in the prepared statement.  This command
3706 ** binds a UTF-8 string STRING to the wildcard.  The string is BYTES bytes
3707 ** long.
3708 */
3709 static int SQLITE_TCLAPI test_bind_text(
3710   void * clientData,
3711   Tcl_Interp *interp,
3712   int objc,
3713   Tcl_Obj *CONST objv[]
3714 ){
3715   sqlite3_stmt *pStmt;
3716   int idx;
3717   int bytes;
3718   char *value;
3719   int rc;
3720 
3721   if( objc!=5 ){
3722     Tcl_AppendResult(interp, "wrong # args: should be \"",
3723         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3724     return TCL_ERROR;
3725   }
3726 
3727   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3728   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3729   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &bytes);
3730   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3731 
3732   rc = sqlite3_bind_text(pStmt, idx, value, bytes, SQLITE_TRANSIENT);
3733   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3734   if( rc!=SQLITE_OK ){
3735     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3736     return TCL_ERROR;
3737   }
3738 
3739   return TCL_OK;
3740 }
3741 
3742 /*
3743 ** Usage:   sqlite3_bind_text16 ?-static? STMT N STRING BYTES
3744 **
3745 ** Test the sqlite3_bind_text16 interface.  STMT is a prepared statement.
3746 ** N is the index of a wildcard in the prepared statement.  This command
3747 ** binds a UTF-16 string STRING to the wildcard.  The string is BYTES bytes
3748 ** long.
3749 */
3750 static int SQLITE_TCLAPI test_bind_text16(
3751   void * clientData,
3752   Tcl_Interp *interp,
3753   int objc,
3754   Tcl_Obj *CONST objv[]
3755 ){
3756 #ifndef SQLITE_OMIT_UTF16
3757   sqlite3_stmt *pStmt;
3758   int idx;
3759   int bytes;
3760   char *value;
3761   int rc;
3762 
3763   void (*xDel)(void*) = (objc==6?SQLITE_STATIC:SQLITE_TRANSIENT);
3764   Tcl_Obj *oStmt    = objv[objc-4];
3765   Tcl_Obj *oN       = objv[objc-3];
3766   Tcl_Obj *oString  = objv[objc-2];
3767   Tcl_Obj *oBytes   = objv[objc-1];
3768 
3769   if( objc!=5 && objc!=6){
3770     Tcl_AppendResult(interp, "wrong # args: should be \"",
3771         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3772     return TCL_ERROR;
3773   }
3774 
3775   if( getStmtPointer(interp, Tcl_GetString(oStmt), &pStmt) ) return TCL_ERROR;
3776   if( Tcl_GetIntFromObj(interp, oN, &idx) ) return TCL_ERROR;
3777   value = (char*)Tcl_GetByteArrayFromObj(oString, 0);
3778   if( Tcl_GetIntFromObj(interp, oBytes, &bytes) ) return TCL_ERROR;
3779 
3780   rc = sqlite3_bind_text16(pStmt, idx, (void *)value, bytes, xDel);
3781   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3782   if( rc!=SQLITE_OK ){
3783     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3784     return TCL_ERROR;
3785   }
3786 
3787 #endif /* SQLITE_OMIT_UTF16 */
3788   return TCL_OK;
3789 }
3790 
3791 /*
3792 ** Usage:   sqlite3_bind_blob ?-static? STMT N DATA BYTES
3793 **
3794 ** Test the sqlite3_bind_blob interface.  STMT is a prepared statement.
3795 ** N is the index of a wildcard in the prepared statement.  This command
3796 ** binds a BLOB to the wildcard.  The BLOB is BYTES bytes in size.
3797 */
3798 static int SQLITE_TCLAPI test_bind_blob(
3799   void * clientData,
3800   Tcl_Interp *interp,
3801   int objc,
3802   Tcl_Obj *CONST objv[]
3803 ){
3804   sqlite3_stmt *pStmt;
3805   int len, idx;
3806   int bytes;
3807   char *value;
3808   int rc;
3809   sqlite3_destructor_type xDestructor = SQLITE_TRANSIENT;
3810 
3811   if( objc!=5 && objc!=6 ){
3812     Tcl_AppendResult(interp, "wrong # args: should be \"",
3813         Tcl_GetStringFromObj(objv[0], 0), " STMT N DATA BYTES", 0);
3814     return TCL_ERROR;
3815   }
3816 
3817   if( objc==6 ){
3818     xDestructor = SQLITE_STATIC;
3819     objv++;
3820   }
3821 
3822   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3823   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3824 
3825   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &len);
3826   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3827 
3828   if( bytes>len ){
3829     char zBuf[200];
3830     sqlite3_snprintf(sizeof(zBuf), zBuf,
3831                      "cannot use %d blob bytes, have %d", bytes, len);
3832     Tcl_AppendResult(interp, zBuf, -1);
3833     return TCL_ERROR;
3834   }
3835 
3836   rc = sqlite3_bind_blob(pStmt, idx, value, bytes, xDestructor);
3837   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3838   if( rc!=SQLITE_OK ){
3839     return TCL_ERROR;
3840   }
3841 
3842   return TCL_OK;
3843 }
3844 
3845 /*
3846 ** Usage:   sqlite3_bind_parameter_count  STMT
3847 **
3848 ** Return the number of wildcards in the given statement.
3849 */
3850 static int SQLITE_TCLAPI test_bind_parameter_count(
3851   void * clientData,
3852   Tcl_Interp *interp,
3853   int objc,
3854   Tcl_Obj *CONST objv[]
3855 ){
3856   sqlite3_stmt *pStmt;
3857 
3858   if( objc!=2 ){
3859     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3860     return TCL_ERROR;
3861   }
3862   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3863   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_bind_parameter_count(pStmt)));
3864   return TCL_OK;
3865 }
3866 
3867 /*
3868 ** Usage:   sqlite3_bind_parameter_name  STMT  N
3869 **
3870 ** Return the name of the Nth wildcard.  The first wildcard is 1.
3871 ** An empty string is returned if N is out of range or if the wildcard
3872 ** is nameless.
3873 */
3874 static int SQLITE_TCLAPI test_bind_parameter_name(
3875   void * clientData,
3876   Tcl_Interp *interp,
3877   int objc,
3878   Tcl_Obj *CONST objv[]
3879 ){
3880   sqlite3_stmt *pStmt;
3881   int i;
3882 
3883   if( objc!=3 ){
3884     Tcl_WrongNumArgs(interp, 1, objv, "STMT N");
3885     return TCL_ERROR;
3886   }
3887   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3888   if( Tcl_GetIntFromObj(interp, objv[2], &i) ) return TCL_ERROR;
3889   Tcl_SetObjResult(interp,
3890      Tcl_NewStringObj(sqlite3_bind_parameter_name(pStmt,i),-1)
3891   );
3892   return TCL_OK;
3893 }
3894 
3895 /*
3896 ** Usage:   sqlite3_bind_parameter_index  STMT  NAME
3897 **
3898 ** Return the index of the wildcard called NAME.  Return 0 if there is
3899 ** no such wildcard.
3900 */
3901 static int SQLITE_TCLAPI test_bind_parameter_index(
3902   void * clientData,
3903   Tcl_Interp *interp,
3904   int objc,
3905   Tcl_Obj *CONST objv[]
3906 ){
3907   sqlite3_stmt *pStmt;
3908 
3909   if( objc!=3 ){
3910     Tcl_WrongNumArgs(interp, 1, objv, "STMT NAME");
3911     return TCL_ERROR;
3912   }
3913   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3914   Tcl_SetObjResult(interp,
3915      Tcl_NewIntObj(
3916        sqlite3_bind_parameter_index(pStmt,Tcl_GetString(objv[2]))
3917      )
3918   );
3919   return TCL_OK;
3920 }
3921 
3922 /*
3923 ** Usage:   sqlite3_clear_bindings STMT
3924 **
3925 */
3926 static int SQLITE_TCLAPI test_clear_bindings(
3927   void * clientData,
3928   Tcl_Interp *interp,
3929   int objc,
3930   Tcl_Obj *CONST objv[]
3931 ){
3932   sqlite3_stmt *pStmt;
3933 
3934   if( objc!=2 ){
3935     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3936     return TCL_ERROR;
3937   }
3938   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3939   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_clear_bindings(pStmt)));
3940   return TCL_OK;
3941 }
3942 
3943 /*
3944 ** Usage:   sqlite3_sleep MILLISECONDS
3945 */
3946 static int SQLITE_TCLAPI test_sleep(
3947   void * clientData,
3948   Tcl_Interp *interp,
3949   int objc,
3950   Tcl_Obj *CONST objv[]
3951 ){
3952   int ms;
3953 
3954   if( objc!=2 ){
3955     Tcl_WrongNumArgs(interp, 1, objv, "MILLISECONDS");
3956     return TCL_ERROR;
3957   }
3958   if( Tcl_GetIntFromObj(interp, objv[1], &ms) ){
3959     return TCL_ERROR;
3960   }
3961   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_sleep(ms)));
3962   return TCL_OK;
3963 }
3964 
3965 /*
3966 ** Usage: sqlite3_extended_errcode DB
3967 **
3968 ** Return the string representation of the most recent sqlite3_* API
3969 ** error code. e.g. "SQLITE_ERROR".
3970 */
3971 static int SQLITE_TCLAPI test_ex_errcode(
3972   void * clientData,
3973   Tcl_Interp *interp,
3974   int objc,
3975   Tcl_Obj *CONST objv[]
3976 ){
3977   sqlite3 *db;
3978   int rc;
3979 
3980   if( objc!=2 ){
3981     Tcl_AppendResult(interp, "wrong # args: should be \"",
3982        Tcl_GetString(objv[0]), " DB", 0);
3983     return TCL_ERROR;
3984   }
3985   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3986   rc = sqlite3_extended_errcode(db);
3987   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
3988   return TCL_OK;
3989 }
3990 
3991 
3992 /*
3993 ** Usage: sqlite3_errcode DB
3994 **
3995 ** Return the string representation of the most recent sqlite3_* API
3996 ** error code. e.g. "SQLITE_ERROR".
3997 */
3998 static int SQLITE_TCLAPI test_errcode(
3999   void * clientData,
4000   Tcl_Interp *interp,
4001   int objc,
4002   Tcl_Obj *CONST objv[]
4003 ){
4004   sqlite3 *db;
4005   int rc;
4006 
4007   if( objc!=2 ){
4008     Tcl_AppendResult(interp, "wrong # args: should be \"",
4009        Tcl_GetString(objv[0]), " DB", 0);
4010     return TCL_ERROR;
4011   }
4012   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4013   rc = sqlite3_errcode(db);
4014   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
4015   return TCL_OK;
4016 }
4017 
4018 /*
4019 ** Usage:   sqlite3_errmsg DB
4020 **
4021 ** Returns the UTF-8 representation of the error message string for the
4022 ** most recent sqlite3_* API call.
4023 */
4024 static int SQLITE_TCLAPI test_errmsg(
4025   void * clientData,
4026   Tcl_Interp *interp,
4027   int objc,
4028   Tcl_Obj *CONST objv[]
4029 ){
4030   sqlite3 *db;
4031   const char *zErr;
4032 
4033   if( objc!=2 ){
4034     Tcl_AppendResult(interp, "wrong # args: should be \"",
4035        Tcl_GetString(objv[0]), " DB", 0);
4036     return TCL_ERROR;
4037   }
4038   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4039 
4040   zErr = sqlite3_errmsg(db);
4041   Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
4042   return TCL_OK;
4043 }
4044 
4045 /*
4046 ** Usage:   test_errmsg16 DB
4047 **
4048 ** Returns the UTF-16 representation of the error message string for the
4049 ** most recent sqlite3_* API call. This is a byte array object at the TCL
4050 ** level, and it includes the 0x00 0x00 terminator bytes at the end of the
4051 ** UTF-16 string.
4052 */
4053 static int SQLITE_TCLAPI test_errmsg16(
4054   void * clientData,
4055   Tcl_Interp *interp,
4056   int objc,
4057   Tcl_Obj *CONST objv[]
4058 ){
4059 #ifndef SQLITE_OMIT_UTF16
4060   sqlite3 *db;
4061   const void *zErr;
4062   const char *z;
4063   int bytes = 0;
4064 
4065   if( objc!=2 ){
4066     Tcl_AppendResult(interp, "wrong # args: should be \"",
4067        Tcl_GetString(objv[0]), " DB", 0);
4068     return TCL_ERROR;
4069   }
4070   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4071 
4072   zErr = sqlite3_errmsg16(db);
4073   if( zErr ){
4074     z = zErr;
4075     for(bytes=0; z[bytes] || z[bytes+1]; bytes+=2){}
4076   }
4077   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zErr, bytes));
4078 #endif /* SQLITE_OMIT_UTF16 */
4079   return TCL_OK;
4080 }
4081 
4082 /*
4083 ** Usage: sqlite3_prepare DB sql bytes ?tailvar?
4084 **
4085 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4086 ** database handle <DB>. The parameter <tailval> is the name of a global
4087 ** variable that is set to the unused portion of <sql> (if any). A
4088 ** STMT handle is returned.
4089 */
4090 static int SQLITE_TCLAPI test_prepare(
4091   void * clientData,
4092   Tcl_Interp *interp,
4093   int objc,
4094   Tcl_Obj *CONST objv[]
4095 ){
4096   sqlite3 *db;
4097   const char *zSql;
4098   int bytes;
4099   const char *zTail = 0;
4100   sqlite3_stmt *pStmt = 0;
4101   char zBuf[50];
4102   int rc;
4103 
4104   if( objc!=5 && objc!=4 ){
4105     Tcl_AppendResult(interp, "wrong # args: should be \"",
4106        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4107     return TCL_ERROR;
4108   }
4109   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4110   zSql = Tcl_GetString(objv[2]);
4111   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4112 
4113   rc = sqlite3_prepare(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4114   Tcl_ResetResult(interp);
4115   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4116   if( zTail && objc>=5 ){
4117     if( bytes>=0 ){
4118       bytes = bytes - (int)(zTail-zSql);
4119     }
4120     if( (int)strlen(zTail)<bytes ){
4121       bytes = (int)strlen(zTail);
4122     }
4123     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
4124   }
4125   if( rc!=SQLITE_OK ){
4126     assert( pStmt==0 );
4127     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4128     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4129     return TCL_ERROR;
4130   }
4131 
4132   if( pStmt ){
4133     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4134     Tcl_AppendResult(interp, zBuf, 0);
4135   }
4136   return TCL_OK;
4137 }
4138 
4139 /*
4140 ** Usage: sqlite3_prepare_v2 DB sql bytes ?tailvar?
4141 **
4142 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4143 ** database handle <DB>. The parameter <tailval> is the name of a global
4144 ** variable that is set to the unused portion of <sql> (if any). A
4145 ** STMT handle is returned.
4146 */
4147 static int SQLITE_TCLAPI test_prepare_v2(
4148   void * clientData,
4149   Tcl_Interp *interp,
4150   int objc,
4151   Tcl_Obj *CONST objv[]
4152 ){
4153   sqlite3 *db;
4154   const char *zSql;
4155   char *zCopy = 0;                /* malloc() copy of zSql */
4156   int bytes;
4157   const char *zTail = 0;
4158   sqlite3_stmt *pStmt = 0;
4159   char zBuf[50];
4160   int rc;
4161 
4162   if( objc!=5 && objc!=4 ){
4163     Tcl_AppendResult(interp, "wrong # args: should be \"",
4164        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
4165     return TCL_ERROR;
4166   }
4167   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4168   zSql = Tcl_GetString(objv[2]);
4169   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4170 
4171   /* Instead of using zSql directly, make a copy into a buffer obtained
4172   ** directly from malloc(). The idea is to make it easier for valgrind
4173   ** to spot buffer overreads.  */
4174   if( bytes>=0 ){
4175     zCopy = malloc(bytes);
4176     memcpy(zCopy, zSql, bytes);
4177   }else{
4178     int n = (int)strlen(zSql) + 1;
4179     zCopy = malloc(n);
4180     memcpy(zCopy, zSql, n);
4181   }
4182   rc = sqlite3_prepare_v2(db, zCopy, bytes, &pStmt, objc>=5 ? &zTail : 0);
4183   free(zCopy);
4184   zTail = &zSql[(zTail - zCopy)];
4185 
4186   assert(rc==SQLITE_OK || pStmt==0);
4187   Tcl_ResetResult(interp);
4188   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4189   if( rc==SQLITE_OK && zTail && objc>=5 ){
4190     if( bytes>=0 ){
4191       bytes = bytes - (int)(zTail-zSql);
4192     }
4193     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
4194   }
4195   if( rc!=SQLITE_OK ){
4196     assert( pStmt==0 );
4197     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4198     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4199     return TCL_ERROR;
4200   }
4201 
4202   if( pStmt ){
4203     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4204     Tcl_AppendResult(interp, zBuf, 0);
4205   }
4206   return TCL_OK;
4207 }
4208 
4209 /*
4210 ** Usage: sqlite3_prepare_tkt3134 DB
4211 **
4212 ** Generate a prepared statement for a zero-byte string as a test
4213 ** for ticket #3134.  The string should be preceded by a zero byte.
4214 */
4215 static int SQLITE_TCLAPI test_prepare_tkt3134(
4216   void * clientData,
4217   Tcl_Interp *interp,
4218   int objc,
4219   Tcl_Obj *CONST objv[]
4220 ){
4221   sqlite3 *db;
4222   static const char zSql[] = "\000SELECT 1";
4223   sqlite3_stmt *pStmt = 0;
4224   char zBuf[50];
4225   int rc;
4226 
4227   if( objc!=2 ){
4228     Tcl_AppendResult(interp, "wrong # args: should be \"",
4229        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
4230     return TCL_ERROR;
4231   }
4232   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4233   rc = sqlite3_prepare_v2(db, &zSql[1], 0, &pStmt, 0);
4234   assert(rc==SQLITE_OK || pStmt==0);
4235   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4236   if( rc!=SQLITE_OK ){
4237     assert( pStmt==0 );
4238     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4239     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4240     return TCL_ERROR;
4241   }
4242 
4243   if( pStmt ){
4244     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4245     Tcl_AppendResult(interp, zBuf, 0);
4246   }
4247   return TCL_OK;
4248 }
4249 
4250 /*
4251 ** Usage: sqlite3_prepare16 DB sql bytes tailvar
4252 **
4253 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4254 ** database handle <DB>. The parameter <tailval> is the name of a global
4255 ** variable that is set to the unused portion of <sql> (if any). A
4256 ** STMT handle is returned.
4257 */
4258 static int SQLITE_TCLAPI test_prepare16(
4259   void * clientData,
4260   Tcl_Interp *interp,
4261   int objc,
4262   Tcl_Obj *CONST objv[]
4263 ){
4264 #ifndef SQLITE_OMIT_UTF16
4265   sqlite3 *db;
4266   const void *zSql;
4267   const void *zTail = 0;
4268   Tcl_Obj *pTail = 0;
4269   sqlite3_stmt *pStmt = 0;
4270   char zBuf[50];
4271   int rc;
4272   int bytes;                /* The integer specified as arg 3 */
4273   int objlen;               /* The byte-array length of arg 2 */
4274 
4275   if( objc!=5 && objc!=4 ){
4276     Tcl_AppendResult(interp, "wrong # args: should be \"",
4277        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4278     return TCL_ERROR;
4279   }
4280   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4281   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
4282   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4283 
4284   rc = sqlite3_prepare16(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4285   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4286   if( rc ){
4287     return TCL_ERROR;
4288   }
4289 
4290   if( objc>=5 ){
4291     if( zTail ){
4292       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
4293     }else{
4294       objlen = 0;
4295     }
4296     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
4297     Tcl_IncrRefCount(pTail);
4298     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
4299     Tcl_DecrRefCount(pTail);
4300   }
4301 
4302   if( pStmt ){
4303     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4304   }
4305   Tcl_AppendResult(interp, zBuf, 0);
4306 #endif /* SQLITE_OMIT_UTF16 */
4307   return TCL_OK;
4308 }
4309 
4310 /*
4311 ** Usage: sqlite3_prepare16_v2 DB sql bytes ?tailvar?
4312 **
4313 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4314 ** database handle <DB>. The parameter <tailval> is the name of a global
4315 ** variable that is set to the unused portion of <sql> (if any). A
4316 ** STMT handle is returned.
4317 */
4318 static int SQLITE_TCLAPI test_prepare16_v2(
4319   void * clientData,
4320   Tcl_Interp *interp,
4321   int objc,
4322   Tcl_Obj *CONST objv[]
4323 ){
4324 #ifndef SQLITE_OMIT_UTF16
4325   sqlite3 *db;
4326   const void *zSql;
4327   const void *zTail = 0;
4328   Tcl_Obj *pTail = 0;
4329   sqlite3_stmt *pStmt = 0;
4330   char zBuf[50];
4331   int rc;
4332   int bytes;                /* The integer specified as arg 3 */
4333   int objlen;               /* The byte-array length of arg 2 */
4334 
4335   if( objc!=5 && objc!=4 ){
4336     Tcl_AppendResult(interp, "wrong # args: should be \"",
4337        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4338     return TCL_ERROR;
4339   }
4340   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4341   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
4342   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4343 
4344   rc = sqlite3_prepare16_v2(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4345   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4346   if( rc ){
4347     return TCL_ERROR;
4348   }
4349 
4350   if( objc>=5 ){
4351     if( zTail ){
4352       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
4353     }else{
4354       objlen = 0;
4355     }
4356     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
4357     Tcl_IncrRefCount(pTail);
4358     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
4359     Tcl_DecrRefCount(pTail);
4360   }
4361 
4362   if( pStmt ){
4363     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4364   }
4365   Tcl_AppendResult(interp, zBuf, 0);
4366 #endif /* SQLITE_OMIT_UTF16 */
4367   return TCL_OK;
4368 }
4369 
4370 /*
4371 ** Usage: sqlite3_open filename ?options-list?
4372 */
4373 static int SQLITE_TCLAPI test_open(
4374   void * clientData,
4375   Tcl_Interp *interp,
4376   int objc,
4377   Tcl_Obj *CONST objv[]
4378 ){
4379   const char *zFilename;
4380   sqlite3 *db;
4381   char zBuf[100];
4382 
4383   if( objc!=3 && objc!=2 && objc!=1 ){
4384     Tcl_AppendResult(interp, "wrong # args: should be \"",
4385        Tcl_GetString(objv[0]), " filename options-list", 0);
4386     return TCL_ERROR;
4387   }
4388 
4389   zFilename = objc>1 ? Tcl_GetString(objv[1]) : 0;
4390   sqlite3_open(zFilename, &db);
4391 
4392   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4393   Tcl_AppendResult(interp, zBuf, 0);
4394   return TCL_OK;
4395 }
4396 
4397 /*
4398 ** Usage: sqlite3_open_v2 FILENAME FLAGS VFS
4399 */
4400 static int SQLITE_TCLAPI test_open_v2(
4401   void * clientData,
4402   Tcl_Interp *interp,
4403   int objc,
4404   Tcl_Obj *CONST objv[]
4405 ){
4406   const char *zFilename;
4407   const char *zVfs;
4408   int flags = 0;
4409   sqlite3 *db;
4410   int rc;
4411   char zBuf[100];
4412 
4413   int nFlag;
4414   Tcl_Obj **apFlag;
4415   int i;
4416 
4417   if( objc!=4 ){
4418     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME FLAGS VFS");
4419     return TCL_ERROR;
4420   }
4421   zFilename = Tcl_GetString(objv[1]);
4422   zVfs = Tcl_GetString(objv[3]);
4423   if( zVfs[0]==0x00 ) zVfs = 0;
4424 
4425   rc = Tcl_ListObjGetElements(interp, objv[2], &nFlag, &apFlag);
4426   if( rc!=TCL_OK ) return rc;
4427   for(i=0; i<nFlag; i++){
4428     int iFlag;
4429     struct OpenFlag {
4430       const char *zFlag;
4431       int flag;
4432     } aFlag[] = {
4433       { "SQLITE_OPEN_READONLY", SQLITE_OPEN_READONLY },
4434       { "SQLITE_OPEN_READWRITE", SQLITE_OPEN_READWRITE },
4435       { "SQLITE_OPEN_CREATE", SQLITE_OPEN_CREATE },
4436       { "SQLITE_OPEN_DELETEONCLOSE", SQLITE_OPEN_DELETEONCLOSE },
4437       { "SQLITE_OPEN_EXCLUSIVE", SQLITE_OPEN_EXCLUSIVE },
4438       { "SQLITE_OPEN_AUTOPROXY", SQLITE_OPEN_AUTOPROXY },
4439       { "SQLITE_OPEN_MAIN_DB", SQLITE_OPEN_MAIN_DB },
4440       { "SQLITE_OPEN_TEMP_DB", SQLITE_OPEN_TEMP_DB },
4441       { "SQLITE_OPEN_TRANSIENT_DB", SQLITE_OPEN_TRANSIENT_DB },
4442       { "SQLITE_OPEN_MAIN_JOURNAL", SQLITE_OPEN_MAIN_JOURNAL },
4443       { "SQLITE_OPEN_TEMP_JOURNAL", SQLITE_OPEN_TEMP_JOURNAL },
4444       { "SQLITE_OPEN_SUBJOURNAL", SQLITE_OPEN_SUBJOURNAL },
4445       { "SQLITE_OPEN_MASTER_JOURNAL", SQLITE_OPEN_MASTER_JOURNAL },
4446       { "SQLITE_OPEN_NOMUTEX", SQLITE_OPEN_NOMUTEX },
4447       { "SQLITE_OPEN_FULLMUTEX", SQLITE_OPEN_FULLMUTEX },
4448       { "SQLITE_OPEN_SHAREDCACHE", SQLITE_OPEN_SHAREDCACHE },
4449       { "SQLITE_OPEN_PRIVATECACHE", SQLITE_OPEN_PRIVATECACHE },
4450       { "SQLITE_OPEN_WAL", SQLITE_OPEN_WAL },
4451       { "SQLITE_OPEN_URI", SQLITE_OPEN_URI },
4452       { 0, 0 }
4453     };
4454     rc = Tcl_GetIndexFromObjStruct(interp, apFlag[i], aFlag, sizeof(aFlag[0]),
4455         "flag", 0, &iFlag
4456     );
4457     if( rc!=TCL_OK ) return rc;
4458     flags |= aFlag[iFlag].flag;
4459   }
4460 
4461   rc = sqlite3_open_v2(zFilename, &db, flags, zVfs);
4462   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4463   Tcl_AppendResult(interp, zBuf, 0);
4464   return TCL_OK;
4465 }
4466 
4467 /*
4468 ** Usage: sqlite3_open16 filename options
4469 */
4470 static int SQLITE_TCLAPI test_open16(
4471   void * clientData,
4472   Tcl_Interp *interp,
4473   int objc,
4474   Tcl_Obj *CONST objv[]
4475 ){
4476 #ifndef SQLITE_OMIT_UTF16
4477   const void *zFilename;
4478   sqlite3 *db;
4479   char zBuf[100];
4480 
4481   if( objc!=3 ){
4482     Tcl_AppendResult(interp, "wrong # args: should be \"",
4483        Tcl_GetString(objv[0]), " filename options-list", 0);
4484     return TCL_ERROR;
4485   }
4486 
4487   zFilename = Tcl_GetByteArrayFromObj(objv[1], 0);
4488   sqlite3_open16(zFilename, &db);
4489 
4490   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4491   Tcl_AppendResult(interp, zBuf, 0);
4492 #endif /* SQLITE_OMIT_UTF16 */
4493   return TCL_OK;
4494 }
4495 
4496 /*
4497 ** Usage: sqlite3_complete16 <UTF-16 string>
4498 **
4499 ** Return 1 if the supplied argument is a complete SQL statement, or zero
4500 ** otherwise.
4501 */
4502 static int SQLITE_TCLAPI test_complete16(
4503   void * clientData,
4504   Tcl_Interp *interp,
4505   int objc,
4506   Tcl_Obj *CONST objv[]
4507 ){
4508 #if !defined(SQLITE_OMIT_COMPLETE) && !defined(SQLITE_OMIT_UTF16)
4509   char *zBuf;
4510 
4511   if( objc!=2 ){
4512     Tcl_WrongNumArgs(interp, 1, objv, "<utf-16 sql>");
4513     return TCL_ERROR;
4514   }
4515 
4516   zBuf = (char*)Tcl_GetByteArrayFromObj(objv[1], 0);
4517   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_complete16(zBuf)));
4518 #endif /* SQLITE_OMIT_COMPLETE && SQLITE_OMIT_UTF16 */
4519   return TCL_OK;
4520 }
4521 
4522 /*
4523 ** Usage: sqlite3_step STMT
4524 **
4525 ** Advance the statement to the next row.
4526 */
4527 static int SQLITE_TCLAPI test_step(
4528   void * clientData,
4529   Tcl_Interp *interp,
4530   int objc,
4531   Tcl_Obj *CONST objv[]
4532 ){
4533   sqlite3_stmt *pStmt;
4534   int rc;
4535 
4536   if( objc!=2 ){
4537     Tcl_AppendResult(interp, "wrong # args: should be \"",
4538        Tcl_GetString(objv[0]), " STMT", 0);
4539     return TCL_ERROR;
4540   }
4541 
4542   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4543   rc = sqlite3_step(pStmt);
4544 
4545   /* if( rc!=SQLITE_DONE && rc!=SQLITE_ROW ) return TCL_ERROR; */
4546   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
4547   return TCL_OK;
4548 }
4549 
4550 static int SQLITE_TCLAPI test_sql(
4551   void * clientData,
4552   Tcl_Interp *interp,
4553   int objc,
4554   Tcl_Obj *CONST objv[]
4555 ){
4556   sqlite3_stmt *pStmt;
4557 
4558   if( objc!=2 ){
4559     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4560     return TCL_ERROR;
4561   }
4562 
4563   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4564   Tcl_SetResult(interp, (char *)sqlite3_sql(pStmt), TCL_VOLATILE);
4565   return TCL_OK;
4566 }
4567 static int SQLITE_TCLAPI test_ex_sql(
4568   void * clientData,
4569   Tcl_Interp *interp,
4570   int objc,
4571   Tcl_Obj *CONST objv[]
4572 ){
4573   sqlite3_stmt *pStmt;
4574   char *z;
4575 
4576   if( objc!=2 ){
4577     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4578     return TCL_ERROR;
4579   }
4580 
4581   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4582   z = sqlite3_expanded_sql(pStmt);
4583   Tcl_SetResult(interp, z, TCL_VOLATILE);
4584   sqlite3_free(z);
4585   return TCL_OK;
4586 }
4587 
4588 /*
4589 ** Usage: sqlite3_column_count STMT
4590 **
4591 ** Return the number of columns returned by the sql statement STMT.
4592 */
4593 static int SQLITE_TCLAPI test_column_count(
4594   void * clientData,
4595   Tcl_Interp *interp,
4596   int objc,
4597   Tcl_Obj *CONST objv[]
4598 ){
4599   sqlite3_stmt *pStmt;
4600 
4601   if( objc!=2 ){
4602     Tcl_AppendResult(interp, "wrong # args: should be \"",
4603        Tcl_GetString(objv[0]), " STMT column", 0);
4604     return TCL_ERROR;
4605   }
4606 
4607   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4608 
4609   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_column_count(pStmt)));
4610   return TCL_OK;
4611 }
4612 
4613 /*
4614 ** Usage: sqlite3_column_type STMT column
4615 **
4616 ** Return the type of the data in column 'column' of the current row.
4617 */
4618 static int SQLITE_TCLAPI test_column_type(
4619   void * clientData,
4620   Tcl_Interp *interp,
4621   int objc,
4622   Tcl_Obj *CONST objv[]
4623 ){
4624   sqlite3_stmt *pStmt;
4625   int col;
4626   int tp;
4627 
4628   if( objc!=3 ){
4629     Tcl_AppendResult(interp, "wrong # args: should be \"",
4630        Tcl_GetString(objv[0]), " STMT column", 0);
4631     return TCL_ERROR;
4632   }
4633 
4634   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4635   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4636 
4637   tp = sqlite3_column_type(pStmt, col);
4638   switch( tp ){
4639     case SQLITE_INTEGER:
4640       Tcl_SetResult(interp, "INTEGER", TCL_STATIC);
4641       break;
4642     case SQLITE_NULL:
4643       Tcl_SetResult(interp, "NULL", TCL_STATIC);
4644       break;
4645     case SQLITE_FLOAT:
4646       Tcl_SetResult(interp, "FLOAT", TCL_STATIC);
4647       break;
4648     case SQLITE_TEXT:
4649       Tcl_SetResult(interp, "TEXT", TCL_STATIC);
4650       break;
4651     case SQLITE_BLOB:
4652       Tcl_SetResult(interp, "BLOB", TCL_STATIC);
4653       break;
4654     default:
4655       assert(0);
4656   }
4657 
4658   return TCL_OK;
4659 }
4660 
4661 /*
4662 ** Usage: sqlite3_column_int64 STMT column
4663 **
4664 ** Return the data in column 'column' of the current row cast as an
4665 ** wide (64-bit) integer.
4666 */
4667 static int SQLITE_TCLAPI test_column_int64(
4668   void * clientData,
4669   Tcl_Interp *interp,
4670   int objc,
4671   Tcl_Obj *CONST objv[]
4672 ){
4673   sqlite3_stmt *pStmt;
4674   int col;
4675   i64 iVal;
4676 
4677   if( objc!=3 ){
4678     Tcl_AppendResult(interp, "wrong # args: should be \"",
4679        Tcl_GetString(objv[0]), " STMT column", 0);
4680     return TCL_ERROR;
4681   }
4682 
4683   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4684   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4685 
4686   iVal = sqlite3_column_int64(pStmt, col);
4687   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(iVal));
4688   return TCL_OK;
4689 }
4690 
4691 /*
4692 ** Usage: sqlite3_column_blob STMT column
4693 */
4694 static int SQLITE_TCLAPI test_column_blob(
4695   void * clientData,
4696   Tcl_Interp *interp,
4697   int objc,
4698   Tcl_Obj *CONST objv[]
4699 ){
4700   sqlite3_stmt *pStmt;
4701   int col;
4702 
4703   int len;
4704   const void *pBlob;
4705 
4706   if( objc!=3 ){
4707     Tcl_AppendResult(interp, "wrong # args: should be \"",
4708        Tcl_GetString(objv[0]), " STMT column", 0);
4709     return TCL_ERROR;
4710   }
4711 
4712   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4713   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4714 
4715   len = sqlite3_column_bytes(pStmt, col);
4716   pBlob = sqlite3_column_blob(pStmt, col);
4717   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pBlob, len));
4718   return TCL_OK;
4719 }
4720 
4721 /*
4722 ** Usage: sqlite3_column_double STMT column
4723 **
4724 ** Return the data in column 'column' of the current row cast as a double.
4725 */
4726 static int SQLITE_TCLAPI test_column_double(
4727   void * clientData,
4728   Tcl_Interp *interp,
4729   int objc,
4730   Tcl_Obj *CONST objv[]
4731 ){
4732   sqlite3_stmt *pStmt;
4733   int col;
4734   double rVal;
4735 
4736   if( objc!=3 ){
4737     Tcl_AppendResult(interp, "wrong # args: should be \"",
4738        Tcl_GetString(objv[0]), " STMT column", 0);
4739     return TCL_ERROR;
4740   }
4741 
4742   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4743   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4744 
4745   rVal = sqlite3_column_double(pStmt, col);
4746   Tcl_SetObjResult(interp, Tcl_NewDoubleObj(rVal));
4747   return TCL_OK;
4748 }
4749 
4750 /*
4751 ** Usage: sqlite3_data_count STMT
4752 **
4753 ** Return the number of columns returned by the sql statement STMT.
4754 */
4755 static int SQLITE_TCLAPI test_data_count(
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_AppendResult(interp, "wrong # args: should be \"",
4765        Tcl_GetString(objv[0]), " STMT column", 0);
4766     return TCL_ERROR;
4767   }
4768 
4769   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4770 
4771   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_data_count(pStmt)));
4772   return TCL_OK;
4773 }
4774 
4775 /*
4776 ** Usage: sqlite3_column_text STMT column
4777 **
4778 ** Usage: sqlite3_column_decltype STMT column
4779 **
4780 ** Usage: sqlite3_column_name STMT column
4781 */
4782 static int SQLITE_TCLAPI test_stmt_utf8(
4783   void * clientData,        /* Pointer to SQLite API function to be invoke */
4784   Tcl_Interp *interp,
4785   int objc,
4786   Tcl_Obj *CONST objv[]
4787 ){
4788   sqlite3_stmt *pStmt;
4789   int col;
4790   const char *(*xFunc)(sqlite3_stmt*, int);
4791   const char *zRet;
4792 
4793   xFunc = (const char *(*)(sqlite3_stmt*, int))clientData;
4794   if( objc!=3 ){
4795     Tcl_AppendResult(interp, "wrong # args: should be \"",
4796        Tcl_GetString(objv[0]), " STMT column", 0);
4797     return TCL_ERROR;
4798   }
4799 
4800   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4801   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4802   zRet = xFunc(pStmt, col);
4803   if( zRet ){
4804     Tcl_SetResult(interp, (char *)zRet, 0);
4805   }
4806   return TCL_OK;
4807 }
4808 
4809 static int SQLITE_TCLAPI test_global_recover(
4810   void * clientData,
4811   Tcl_Interp *interp,
4812   int objc,
4813   Tcl_Obj *CONST objv[]
4814 ){
4815 #ifndef SQLITE_OMIT_DEPRECATED
4816   int rc;
4817   if( objc!=1 ){
4818     Tcl_WrongNumArgs(interp, 1, objv, "");
4819     return TCL_ERROR;
4820   }
4821   rc = sqlite3_global_recover();
4822   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4823 #endif
4824   return TCL_OK;
4825 }
4826 
4827 /*
4828 ** Usage: sqlite3_column_text STMT column
4829 **
4830 ** Usage: sqlite3_column_decltype STMT column
4831 **
4832 ** Usage: sqlite3_column_name STMT column
4833 */
4834 static int SQLITE_TCLAPI test_stmt_utf16(
4835   void * clientData,     /* Pointer to SQLite API function to be invoked */
4836   Tcl_Interp *interp,
4837   int objc,
4838   Tcl_Obj *CONST objv[]
4839 ){
4840 #ifndef SQLITE_OMIT_UTF16
4841   sqlite3_stmt *pStmt;
4842   int col;
4843   Tcl_Obj *pRet;
4844   const void *zName16;
4845   const void *(*xFunc)(sqlite3_stmt*, int);
4846 
4847   xFunc = (const void *(*)(sqlite3_stmt*, int))clientData;
4848   if( objc!=3 ){
4849     Tcl_AppendResult(interp, "wrong # args: should be \"",
4850        Tcl_GetString(objv[0]), " STMT column", 0);
4851     return TCL_ERROR;
4852   }
4853 
4854   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4855   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4856 
4857   zName16 = xFunc(pStmt, col);
4858   if( zName16 ){
4859     int n;
4860     const char *z = zName16;
4861     for(n=0; z[n] || z[n+1]; n+=2){}
4862     pRet = Tcl_NewByteArrayObj(zName16, n+2);
4863     Tcl_SetObjResult(interp, pRet);
4864   }
4865 #endif /* SQLITE_OMIT_UTF16 */
4866 
4867   return TCL_OK;
4868 }
4869 
4870 /*
4871 ** Usage: sqlite3_column_int STMT column
4872 **
4873 ** Usage: sqlite3_column_bytes STMT column
4874 **
4875 ** Usage: sqlite3_column_bytes16 STMT column
4876 **
4877 */
4878 static int SQLITE_TCLAPI test_stmt_int(
4879   void * clientData,    /* Pointer to SQLite API function to be invoked */
4880   Tcl_Interp *interp,
4881   int objc,
4882   Tcl_Obj *CONST objv[]
4883 ){
4884   sqlite3_stmt *pStmt;
4885   int col;
4886   int (*xFunc)(sqlite3_stmt*, int);
4887 
4888   xFunc = (int (*)(sqlite3_stmt*, int))clientData;
4889   if( objc!=3 ){
4890     Tcl_AppendResult(interp, "wrong # args: should be \"",
4891        Tcl_GetString(objv[0]), " STMT column", 0);
4892     return TCL_ERROR;
4893   }
4894 
4895   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4896   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4897 
4898   Tcl_SetObjResult(interp, Tcl_NewIntObj(xFunc(pStmt, col)));
4899   return TCL_OK;
4900 }
4901 
4902 /*
4903 ** Usage:  sqlite_set_magic  DB  MAGIC-NUMBER
4904 **
4905 ** Set the db->magic value.  This is used to test error recovery logic.
4906 */
4907 static int SQLITE_TCLAPI sqlite_set_magic(
4908   void * clientData,
4909   Tcl_Interp *interp,
4910   int argc,
4911   char **argv
4912 ){
4913   sqlite3 *db;
4914   if( argc!=3 ){
4915     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4916          " DB MAGIC", 0);
4917     return TCL_ERROR;
4918   }
4919   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4920   if( strcmp(argv[2], "SQLITE_MAGIC_OPEN")==0 ){
4921     db->magic = SQLITE_MAGIC_OPEN;
4922   }else if( strcmp(argv[2], "SQLITE_MAGIC_CLOSED")==0 ){
4923     db->magic = SQLITE_MAGIC_CLOSED;
4924   }else if( strcmp(argv[2], "SQLITE_MAGIC_BUSY")==0 ){
4925     db->magic = SQLITE_MAGIC_BUSY;
4926   }else if( strcmp(argv[2], "SQLITE_MAGIC_ERROR")==0 ){
4927     db->magic = SQLITE_MAGIC_ERROR;
4928   }else if( Tcl_GetInt(interp, argv[2], (int*)&db->magic) ){
4929     return TCL_ERROR;
4930   }
4931   return TCL_OK;
4932 }
4933 
4934 /*
4935 ** Usage:  sqlite3_interrupt  DB
4936 **
4937 ** Trigger an interrupt on DB
4938 */
4939 static int SQLITE_TCLAPI test_interrupt(
4940   void * clientData,
4941   Tcl_Interp *interp,
4942   int argc,
4943   char **argv
4944 ){
4945   sqlite3 *db;
4946   if( argc!=2 ){
4947     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB", 0);
4948     return TCL_ERROR;
4949   }
4950   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4951   sqlite3_interrupt(db);
4952   return TCL_OK;
4953 }
4954 
4955 /*
4956 ** Usage: sqlite_delete_function DB function-name
4957 **
4958 ** Delete the user function 'function-name' from database handle DB. It
4959 ** is assumed that the user function was created as UTF8, any number of
4960 ** arguments (the way the TCL interface does it).
4961 */
4962 static int SQLITE_TCLAPI delete_function(
4963   void * clientData,
4964   Tcl_Interp *interp,
4965   int argc,
4966   char **argv
4967 ){
4968   int rc;
4969   sqlite3 *db;
4970   if( argc!=3 ){
4971     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4972         " DB function-name", 0);
4973     return TCL_ERROR;
4974   }
4975   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4976   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0, 0, 0, 0);
4977   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4978   return TCL_OK;
4979 }
4980 
4981 /*
4982 ** Usage: sqlite_delete_collation DB collation-name
4983 **
4984 ** Delete the collation sequence 'collation-name' from database handle
4985 ** DB. It is assumed that the collation sequence was created as UTF8 (the
4986 ** way the TCL interface does it).
4987 */
4988 static int SQLITE_TCLAPI delete_collation(
4989   void * clientData,
4990   Tcl_Interp *interp,
4991   int argc,
4992   char **argv
4993 ){
4994   int rc;
4995   sqlite3 *db;
4996   if( argc!=3 ){
4997     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4998         " DB function-name", 0);
4999     return TCL_ERROR;
5000   }
5001   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5002   rc = sqlite3_create_collation(db, argv[2], SQLITE_UTF8, 0, 0);
5003   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5004   return TCL_OK;
5005 }
5006 
5007 /*
5008 ** Usage: sqlite3_get_autocommit DB
5009 **
5010 ** Return true if the database DB is currently in auto-commit mode.
5011 ** Return false if not.
5012 */
5013 static int SQLITE_TCLAPI get_autocommit(
5014   void * clientData,
5015   Tcl_Interp *interp,
5016   int argc,
5017   char **argv
5018 ){
5019   char zBuf[30];
5020   sqlite3 *db;
5021   if( argc!=2 ){
5022     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5023         " DB", 0);
5024     return TCL_ERROR;
5025   }
5026   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5027   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", sqlite3_get_autocommit(db));
5028   Tcl_AppendResult(interp, zBuf, 0);
5029   return TCL_OK;
5030 }
5031 
5032 /*
5033 ** Usage: sqlite3_busy_timeout DB MS
5034 **
5035 ** Set the busy timeout.  This is more easily done using the timeout
5036 ** method of the TCL interface.  But we need a way to test the case
5037 ** where it returns SQLITE_MISUSE.
5038 */
5039 static int SQLITE_TCLAPI test_busy_timeout(
5040   void * clientData,
5041   Tcl_Interp *interp,
5042   int argc,
5043   char **argv
5044 ){
5045   int rc, ms;
5046   sqlite3 *db;
5047   if( argc!=3 ){
5048     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5049         " DB", 0);
5050     return TCL_ERROR;
5051   }
5052   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5053   if( Tcl_GetInt(interp, argv[2], &ms) ) return TCL_ERROR;
5054   rc = sqlite3_busy_timeout(db, ms);
5055   Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
5056   return TCL_OK;
5057 }
5058 
5059 /*
5060 ** Usage:  tcl_variable_type VARIABLENAME
5061 **
5062 ** Return the name of the internal representation for the
5063 ** value of the given variable.
5064 */
5065 static int SQLITE_TCLAPI tcl_variable_type(
5066   void * clientData,
5067   Tcl_Interp *interp,
5068   int objc,
5069   Tcl_Obj *CONST objv[]
5070 ){
5071   Tcl_Obj *pVar;
5072   if( objc!=2 ){
5073     Tcl_WrongNumArgs(interp, 1, objv, "VARIABLE");
5074     return TCL_ERROR;
5075   }
5076   pVar = Tcl_GetVar2Ex(interp, Tcl_GetString(objv[1]), 0, TCL_LEAVE_ERR_MSG);
5077   if( pVar==0 ) return TCL_ERROR;
5078   if( pVar->typePtr ){
5079     Tcl_SetObjResult(interp, Tcl_NewStringObj(pVar->typePtr->name, -1));
5080   }
5081   return TCL_OK;
5082 }
5083 
5084 /*
5085 ** Usage:  sqlite3_release_memory ?N?
5086 **
5087 ** Attempt to release memory currently held but not actually required.
5088 ** The integer N is the number of bytes we are trying to release.  The
5089 ** return value is the amount of memory actually released.
5090 */
5091 static int SQLITE_TCLAPI test_release_memory(
5092   void * clientData,
5093   Tcl_Interp *interp,
5094   int objc,
5095   Tcl_Obj *CONST objv[]
5096 ){
5097 #if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) && !defined(SQLITE_OMIT_DISKIO)
5098   int N;
5099   int amt;
5100   if( objc!=1 && objc!=2 ){
5101     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
5102     return TCL_ERROR;
5103   }
5104   if( objc==2 ){
5105     if( Tcl_GetIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
5106   }else{
5107     N = -1;
5108   }
5109   amt = sqlite3_release_memory(N);
5110   Tcl_SetObjResult(interp, Tcl_NewIntObj(amt));
5111 #endif
5112   return TCL_OK;
5113 }
5114 
5115 
5116 /*
5117 ** Usage:  sqlite3_db_release_memory DB
5118 **
5119 ** Attempt to release memory currently held by database DB.  Return the
5120 ** result code (which in the current implementation is always zero).
5121 */
5122 static int SQLITE_TCLAPI test_db_release_memory(
5123   void * clientData,
5124   Tcl_Interp *interp,
5125   int objc,
5126   Tcl_Obj *CONST objv[]
5127 ){
5128   sqlite3 *db;
5129   int rc;
5130   if( objc!=2 ){
5131     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5132     return TCL_ERROR;
5133   }
5134   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5135   rc = sqlite3_db_release_memory(db);
5136   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5137   return TCL_OK;
5138 }
5139 
5140 /*
5141 ** Usage:  sqlite3_db_cacheflush DB
5142 **
5143 ** Attempt to flush any dirty pages to disk.
5144 */
5145 static int SQLITE_TCLAPI test_db_cacheflush(
5146   void * clientData,
5147   Tcl_Interp *interp,
5148   int objc,
5149   Tcl_Obj *CONST objv[]
5150 ){
5151   sqlite3 *db;
5152   int rc;
5153   if( objc!=2 ){
5154     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5155     return TCL_ERROR;
5156   }
5157   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5158   rc = sqlite3_db_cacheflush(db);
5159   if( rc ){
5160     Tcl_SetResult(interp, (char *)sqlite3ErrStr(rc), TCL_STATIC);
5161     return TCL_ERROR;
5162   }
5163 
5164   Tcl_ResetResult(interp);
5165   return TCL_OK;
5166 }
5167 
5168 /*
5169 ** Usage:  sqlite3_system_errno DB
5170 **
5171 ** Return the low-level system errno value.
5172 */
5173 static int SQLITE_TCLAPI test_system_errno(
5174   void * clientData,
5175   Tcl_Interp *interp,
5176   int objc,
5177   Tcl_Obj *CONST objv[]
5178 ){
5179   sqlite3 *db;
5180   int iErrno;
5181   if( objc!=2 ){
5182     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5183     return TCL_ERROR;
5184   }
5185   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5186   iErrno = sqlite3_system_errno(db);
5187   Tcl_SetObjResult(interp, Tcl_NewIntObj(iErrno));
5188   return TCL_OK;
5189 }
5190 
5191 /*
5192 ** Usage:  sqlite3_db_filename DB DBNAME
5193 **
5194 ** Return the name of a file associated with a database.
5195 */
5196 static int SQLITE_TCLAPI test_db_filename(
5197   void * clientData,
5198   Tcl_Interp *interp,
5199   int objc,
5200   Tcl_Obj *CONST objv[]
5201 ){
5202   sqlite3 *db;
5203   const char *zDbName;
5204   if( objc!=3 ){
5205     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
5206     return TCL_ERROR;
5207   }
5208   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5209   zDbName = Tcl_GetString(objv[2]);
5210   Tcl_AppendResult(interp, sqlite3_db_filename(db, zDbName), (void*)0);
5211   return TCL_OK;
5212 }
5213 
5214 /*
5215 ** Usage:  sqlite3_db_readonly DB DBNAME
5216 **
5217 ** Return 1 or 0 if DBNAME is readonly or not.  Return -1 if DBNAME does
5218 ** not exist.
5219 */
5220 static int SQLITE_TCLAPI test_db_readonly(
5221   void * clientData,
5222   Tcl_Interp *interp,
5223   int objc,
5224   Tcl_Obj *CONST objv[]
5225 ){
5226   sqlite3 *db;
5227   const char *zDbName;
5228   if( objc!=3 ){
5229     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
5230     return TCL_ERROR;
5231   }
5232   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5233   zDbName = Tcl_GetString(objv[2]);
5234   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_db_readonly(db, zDbName)));
5235   return TCL_OK;
5236 }
5237 
5238 /*
5239 ** Usage:  sqlite3_soft_heap_limit ?N?
5240 **
5241 ** Query or set the soft heap limit for the current thread.  The
5242 ** limit is only changed if the N is present.  The previous limit
5243 ** is returned.
5244 */
5245 static int SQLITE_TCLAPI test_soft_heap_limit(
5246   void * clientData,
5247   Tcl_Interp *interp,
5248   int objc,
5249   Tcl_Obj *CONST objv[]
5250 ){
5251   sqlite3_int64 amt;
5252   Tcl_WideInt N = -1;
5253   if( objc!=1 && objc!=2 ){
5254     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
5255     return TCL_ERROR;
5256   }
5257   if( objc==2 ){
5258     if( Tcl_GetWideIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
5259   }
5260   amt = sqlite3_soft_heap_limit64(N);
5261   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(amt));
5262   return TCL_OK;
5263 }
5264 
5265 /*
5266 ** Usage:   sqlite3_thread_cleanup
5267 **
5268 ** Call the sqlite3_thread_cleanup API.
5269 */
5270 static int SQLITE_TCLAPI test_thread_cleanup(
5271   void * clientData,
5272   Tcl_Interp *interp,
5273   int objc,
5274   Tcl_Obj *CONST objv[]
5275 ){
5276 #ifndef SQLITE_OMIT_DEPRECATED
5277   sqlite3_thread_cleanup();
5278 #endif
5279   return TCL_OK;
5280 }
5281 
5282 /*
5283 ** Usage:   sqlite3_pager_refcounts  DB
5284 **
5285 ** Return a list of numbers which are the PagerRefcount for all
5286 ** pagers on each database connection.
5287 */
5288 static int SQLITE_TCLAPI test_pager_refcounts(
5289   void * clientData,
5290   Tcl_Interp *interp,
5291   int objc,
5292   Tcl_Obj *CONST objv[]
5293 ){
5294   sqlite3 *db;
5295   int i;
5296   int v, *a;
5297   Tcl_Obj *pResult;
5298 
5299   if( objc!=2 ){
5300     Tcl_AppendResult(interp, "wrong # args: should be \"",
5301         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5302     return TCL_ERROR;
5303   }
5304   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5305   pResult = Tcl_NewObj();
5306   for(i=0; i<db->nDb; i++){
5307     if( db->aDb[i].pBt==0 ){
5308       v = -1;
5309     }else{
5310       sqlite3_mutex_enter(db->mutex);
5311       a = sqlite3PagerStats(sqlite3BtreePager(db->aDb[i].pBt));
5312       v = a[0];
5313       sqlite3_mutex_leave(db->mutex);
5314     }
5315     Tcl_ListObjAppendElement(0, pResult, Tcl_NewIntObj(v));
5316   }
5317   Tcl_SetObjResult(interp, pResult);
5318   return TCL_OK;
5319 }
5320 
5321 
5322 /*
5323 ** tclcmd:   working_64bit_int
5324 **
5325 ** Some TCL builds (ex: cygwin) do not support 64-bit integers.  This
5326 ** leads to a number of test failures.  The present command checks the
5327 ** TCL build to see whether or not it supports 64-bit integers.  It
5328 ** returns TRUE if it does and FALSE if not.
5329 **
5330 ** This command is used to warn users that their TCL build is defective
5331 ** and that the errors they are seeing in the test scripts might be
5332 ** a result of their defective TCL rather than problems in SQLite.
5333 */
5334 static int SQLITE_TCLAPI working_64bit_int(
5335   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5336   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5337   int objc,              /* Number of arguments */
5338   Tcl_Obj *CONST objv[]  /* Command arguments */
5339 ){
5340   Tcl_Obj *pTestObj;
5341   int working = 0;
5342 
5343   pTestObj = Tcl_NewWideIntObj(1000000*(i64)1234567890);
5344   working = strcmp(Tcl_GetString(pTestObj), "1234567890000000")==0;
5345   Tcl_DecrRefCount(pTestObj);
5346   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(working));
5347   return TCL_OK;
5348 }
5349 
5350 
5351 /*
5352 ** tclcmd:   vfs_unlink_test
5353 **
5354 ** This TCL command unregisters the primary VFS and then registers
5355 ** it back again.  This is used to test the ability to register a
5356 ** VFS when none are previously registered, and the ability to
5357 ** unregister the only available VFS.  Ticket #2738
5358 */
5359 static int SQLITE_TCLAPI vfs_unlink_test(
5360   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5361   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5362   int objc,              /* Number of arguments */
5363   Tcl_Obj *CONST objv[]  /* Command arguments */
5364 ){
5365   int i;
5366   sqlite3_vfs *pMain;
5367   sqlite3_vfs *apVfs[20];
5368   sqlite3_vfs one, two;
5369 
5370   sqlite3_vfs_unregister(0);   /* Unregister of NULL is harmless */
5371   one.zName = "__one";
5372   two.zName = "__two";
5373 
5374   /* Calling sqlite3_vfs_register with 2nd argument of 0 does not
5375   ** change the default VFS
5376   */
5377   pMain = sqlite3_vfs_find(0);
5378   sqlite3_vfs_register(&one, 0);
5379   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
5380   sqlite3_vfs_register(&two, 0);
5381   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
5382 
5383   /* We can find a VFS by its name */
5384   assert( sqlite3_vfs_find("__one")==&one );
5385   assert( sqlite3_vfs_find("__two")==&two );
5386 
5387   /* Calling sqlite_vfs_register with non-zero second parameter changes the
5388   ** default VFS, even if the 1st parameter is an existig VFS that is
5389   ** previously registered as the non-default.
5390   */
5391   sqlite3_vfs_register(&one, 1);
5392   assert( sqlite3_vfs_find("__one")==&one );
5393   assert( sqlite3_vfs_find("__two")==&two );
5394   assert( sqlite3_vfs_find(0)==&one );
5395   sqlite3_vfs_register(&two, 1);
5396   assert( sqlite3_vfs_find("__one")==&one );
5397   assert( sqlite3_vfs_find("__two")==&two );
5398   assert( sqlite3_vfs_find(0)==&two );
5399   if( pMain ){
5400     sqlite3_vfs_register(pMain, 1);
5401     assert( sqlite3_vfs_find("__one")==&one );
5402     assert( sqlite3_vfs_find("__two")==&two );
5403     assert( sqlite3_vfs_find(0)==pMain );
5404   }
5405 
5406   /* Unlink the default VFS.  Repeat until there are no more VFSes
5407   ** registered.
5408   */
5409   for(i=0; i<sizeof(apVfs)/sizeof(apVfs[0]); i++){
5410     apVfs[i] = sqlite3_vfs_find(0);
5411     if( apVfs[i] ){
5412       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
5413       sqlite3_vfs_unregister(apVfs[i]);
5414       assert( 0==sqlite3_vfs_find(apVfs[i]->zName) );
5415     }
5416   }
5417   assert( 0==sqlite3_vfs_find(0) );
5418 
5419   /* Register the main VFS as non-default (will be made default, since
5420   ** it'll be the only one in existence).
5421   */
5422   sqlite3_vfs_register(pMain, 0);
5423   assert( sqlite3_vfs_find(0)==pMain );
5424 
5425   /* Un-register the main VFS again to restore an empty VFS list */
5426   sqlite3_vfs_unregister(pMain);
5427   assert( 0==sqlite3_vfs_find(0) );
5428 
5429   /* Relink all VFSes in reverse order. */
5430   for(i=sizeof(apVfs)/sizeof(apVfs[0])-1; i>=0; i--){
5431     if( apVfs[i] ){
5432       sqlite3_vfs_register(apVfs[i], 1);
5433       assert( apVfs[i]==sqlite3_vfs_find(0) );
5434       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
5435     }
5436   }
5437 
5438   /* Unregister out sample VFSes. */
5439   sqlite3_vfs_unregister(&one);
5440   sqlite3_vfs_unregister(&two);
5441 
5442   /* Unregistering a VFS that is not currently registered is harmless */
5443   sqlite3_vfs_unregister(&one);
5444   sqlite3_vfs_unregister(&two);
5445   assert( sqlite3_vfs_find("__one")==0 );
5446   assert( sqlite3_vfs_find("__two")==0 );
5447 
5448   /* We should be left with the original default VFS back as the
5449   ** original */
5450   assert( sqlite3_vfs_find(0)==pMain );
5451 
5452   return TCL_OK;
5453 }
5454 
5455 /*
5456 ** tclcmd:   vfs_initfail_test
5457 **
5458 ** This TCL command attempts to vfs_find and vfs_register when the
5459 ** sqlite3_initialize() interface is failing.  All calls should fail.
5460 */
5461 static int SQLITE_TCLAPI vfs_initfail_test(
5462   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5463   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5464   int objc,              /* Number of arguments */
5465   Tcl_Obj *CONST objv[]  /* Command arguments */
5466 ){
5467   sqlite3_vfs one;
5468   one.zName = "__one";
5469 
5470   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5471   sqlite3_vfs_register(&one, 0);
5472   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5473   sqlite3_vfs_register(&one, 1);
5474   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5475   return TCL_OK;
5476 }
5477 
5478 /*
5479 ** Saved VFSes
5480 */
5481 static sqlite3_vfs *apVfs[20];
5482 static int nVfs = 0;
5483 
5484 /*
5485 ** tclcmd:   vfs_unregister_all
5486 **
5487 ** Unregister all VFSes.
5488 */
5489 static int SQLITE_TCLAPI vfs_unregister_all(
5490   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5491   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5492   int objc,              /* Number of arguments */
5493   Tcl_Obj *CONST objv[]  /* Command arguments */
5494 ){
5495   int i;
5496   for(i=0; i<ArraySize(apVfs); i++){
5497     apVfs[i] = sqlite3_vfs_find(0);
5498     if( apVfs[i]==0 ) break;
5499     sqlite3_vfs_unregister(apVfs[i]);
5500   }
5501   nVfs = i;
5502   return TCL_OK;
5503 }
5504 /*
5505 ** tclcmd:   vfs_reregister_all
5506 **
5507 ** Restore all VFSes that were removed using vfs_unregister_all. Taking
5508 ** care to put the linked list back together in the same order as it was
5509 ** in before vfs_unregister_all was invoked.
5510 */
5511 static int SQLITE_TCLAPI vfs_reregister_all(
5512   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5513   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5514   int objc,              /* Number of arguments */
5515   Tcl_Obj *CONST objv[]  /* Command arguments */
5516 ){
5517   int i;
5518   for(i=nVfs-1; i>=0; i--){
5519     sqlite3_vfs_register(apVfs[i], 1);
5520   }
5521   return TCL_OK;
5522 }
5523 
5524 
5525 /*
5526 ** tclcmd:   file_control_test DB
5527 **
5528 ** This TCL command runs the sqlite3_file_control interface and
5529 ** verifies correct operation of the same.
5530 */
5531 static int SQLITE_TCLAPI file_control_test(
5532   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5533   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5534   int objc,              /* Number of arguments */
5535   Tcl_Obj *CONST objv[]  /* Command arguments */
5536 ){
5537   int iArg = 0;
5538   sqlite3 *db;
5539   int rc;
5540 
5541   if( objc!=2 ){
5542     Tcl_AppendResult(interp, "wrong # args: should be \"",
5543         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5544     return TCL_ERROR;
5545   }
5546   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5547   rc = sqlite3_file_control(db, 0, 0, &iArg);
5548   assert( rc==SQLITE_NOTFOUND );
5549   rc = sqlite3_file_control(db, "notadatabase", SQLITE_FCNTL_LOCKSTATE, &iArg);
5550   assert( rc==SQLITE_ERROR );
5551   rc = sqlite3_file_control(db, "main", -1, &iArg);
5552   assert( rc==SQLITE_NOTFOUND );
5553   rc = sqlite3_file_control(db, "temp", -1, &iArg);
5554   assert( rc==SQLITE_NOTFOUND || rc==SQLITE_ERROR );
5555 
5556   return TCL_OK;
5557 }
5558 
5559 
5560 /*
5561 ** tclcmd:   file_control_lasterrno_test DB
5562 **
5563 ** This TCL command runs the sqlite3_file_control interface and
5564 ** verifies correct operation of the SQLITE_LAST_ERRNO verb.
5565 */
5566 static int SQLITE_TCLAPI file_control_lasterrno_test(
5567   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5568   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5569   int objc,              /* Number of arguments */
5570   Tcl_Obj *CONST objv[]  /* Command arguments */
5571 ){
5572   int iArg = 0;
5573   sqlite3 *db;
5574   int rc;
5575 
5576   if( objc!=2 ){
5577     Tcl_AppendResult(interp, "wrong # args: should be \"",
5578         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5579     return TCL_ERROR;
5580   }
5581   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5582     return TCL_ERROR;
5583   }
5584   rc = sqlite3_file_control(db, NULL, SQLITE_LAST_ERRNO, &iArg);
5585   if( rc ){
5586     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5587     return TCL_ERROR;
5588   }
5589   if( iArg!=0 ) {
5590     Tcl_AppendResult(interp, "Unexpected non-zero errno: ",
5591                      Tcl_GetStringFromObj(Tcl_NewIntObj(iArg), 0), " ", 0);
5592     return TCL_ERROR;
5593   }
5594   return TCL_OK;
5595 }
5596 
5597 /*
5598 ** tclcmd:   file_control_chunksize_test DB DBNAME SIZE
5599 **
5600 ** This TCL command runs the sqlite3_file_control interface and
5601 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5602 ** SQLITE_SET_LOCKPROXYFILE verbs.
5603 */
5604 static int SQLITE_TCLAPI file_control_chunksize_test(
5605   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5606   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5607   int objc,              /* Number of arguments */
5608   Tcl_Obj *CONST objv[]  /* Command arguments */
5609 ){
5610   int nSize;                      /* New chunk size */
5611   char *zDb;                      /* Db name ("main", "temp" etc.) */
5612   sqlite3 *db;                    /* Database handle */
5613   int rc;                         /* file_control() return code */
5614 
5615   if( objc!=4 ){
5616     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5617     return TCL_ERROR;
5618   }
5619   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5620    || Tcl_GetIntFromObj(interp, objv[3], &nSize)
5621   ){
5622    return TCL_ERROR;
5623   }
5624   zDb = Tcl_GetString(objv[2]);
5625   if( zDb[0]=='\0' ) zDb = NULL;
5626 
5627   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_CHUNK_SIZE, (void *)&nSize);
5628   if( rc ){
5629     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5630     return TCL_ERROR;
5631   }
5632   return TCL_OK;
5633 }
5634 
5635 /*
5636 ** tclcmd:   file_control_sizehint_test DB DBNAME SIZE
5637 **
5638 ** This TCL command runs the sqlite3_file_control interface
5639 ** with SQLITE_FCNTL_SIZE_HINT
5640 */
5641 static int SQLITE_TCLAPI file_control_sizehint_test(
5642   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5643   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5644   int objc,              /* Number of arguments */
5645   Tcl_Obj *CONST objv[]  /* Command arguments */
5646 ){
5647   Tcl_WideInt nSize;              /* Hinted size */
5648   char *zDb;                      /* Db name ("main", "temp" etc.) */
5649   sqlite3 *db;                    /* Database handle */
5650   int rc;                         /* file_control() return code */
5651 
5652   if( objc!=4 ){
5653     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5654     return TCL_ERROR;
5655   }
5656   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5657    || Tcl_GetWideIntFromObj(interp, objv[3], &nSize)
5658   ){
5659    return TCL_ERROR;
5660   }
5661   zDb = Tcl_GetString(objv[2]);
5662   if( zDb[0]=='\0' ) zDb = NULL;
5663 
5664   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_SIZE_HINT, (void *)&nSize);
5665   if( rc ){
5666     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5667     return TCL_ERROR;
5668   }
5669   return TCL_OK;
5670 }
5671 
5672 /*
5673 ** tclcmd:   file_control_lockproxy_test DB PWD
5674 **
5675 ** This TCL command runs the sqlite3_file_control interface and
5676 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5677 ** SQLITE_SET_LOCKPROXYFILE verbs.
5678 */
5679 static int SQLITE_TCLAPI file_control_lockproxy_test(
5680   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5681   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5682   int objc,              /* Number of arguments */
5683   Tcl_Obj *CONST objv[]  /* Command arguments */
5684 ){
5685   sqlite3 *db;
5686 
5687   if( objc!=3 ){
5688     Tcl_AppendResult(interp, "wrong # args: should be \"",
5689                      Tcl_GetStringFromObj(objv[0], 0), " DB PWD", 0);
5690     return TCL_ERROR;
5691   }
5692   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5693    return TCL_ERROR;
5694   }
5695 
5696 #if !defined(SQLITE_ENABLE_LOCKING_STYLE)
5697 #  if defined(__APPLE__)
5698 #    define SQLITE_ENABLE_LOCKING_STYLE 1
5699 #  else
5700 #    define SQLITE_ENABLE_LOCKING_STYLE 0
5701 #  endif
5702 #endif
5703 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
5704   {
5705     char *testPath;
5706     int rc;
5707     int nPwd;
5708     const char *zPwd;
5709     char proxyPath[400];
5710 
5711     zPwd = Tcl_GetStringFromObj(objv[2], &nPwd);
5712     if( sizeof(proxyPath)<nPwd+20 ){
5713       Tcl_AppendResult(interp, "PWD too big", (void*)0);
5714       return TCL_ERROR;
5715     }
5716     sqlite3_snprintf(sizeof(proxyPath), proxyPath, "%s/test.proxy", zPwd);
5717     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5718     if( rc ){
5719       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5720       return TCL_ERROR;
5721     }
5722     rc = sqlite3_file_control(db, NULL, SQLITE_GET_LOCKPROXYFILE, &testPath);
5723     if( strncmp(proxyPath,testPath,11) ){
5724       Tcl_AppendResult(interp, "Lock proxy file did not match the "
5725                                "previously assigned value", 0);
5726       return TCL_ERROR;
5727     }
5728     if( rc ){
5729       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5730       return TCL_ERROR;
5731     }
5732     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5733     if( rc ){
5734       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5735       return TCL_ERROR;
5736     }
5737   }
5738 #endif
5739   return TCL_OK;
5740 }
5741 
5742 #if SQLITE_OS_WIN
5743 /*
5744 ** tclcmd:   file_control_win32_av_retry DB  NRETRY  DELAY
5745 **
5746 ** This TCL command runs the sqlite3_file_control interface with
5747 ** the SQLITE_FCNTL_WIN32_AV_RETRY opcode.
5748 */
5749 static int SQLITE_TCLAPI file_control_win32_av_retry(
5750   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5751   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5752   int objc,              /* Number of arguments */
5753   Tcl_Obj *CONST objv[]  /* Command arguments */
5754 ){
5755   sqlite3 *db;
5756   int rc;
5757   int a[2];
5758   char z[100];
5759 
5760   if( objc!=4 ){
5761     Tcl_AppendResult(interp, "wrong # args: should be \"",
5762         Tcl_GetStringFromObj(objv[0], 0), " DB NRETRY DELAY", 0);
5763     return TCL_ERROR;
5764   }
5765   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5766     return TCL_ERROR;
5767   }
5768   if( Tcl_GetIntFromObj(interp, objv[2], &a[0]) ) return TCL_ERROR;
5769   if( Tcl_GetIntFromObj(interp, objv[3], &a[1]) ) return TCL_ERROR;
5770   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_AV_RETRY, (void*)a);
5771   sqlite3_snprintf(sizeof(z), z, "%d %d %d", rc, a[0], a[1]);
5772   Tcl_AppendResult(interp, z, (char*)0);
5773   return TCL_OK;
5774 }
5775 
5776 /*
5777 ** tclcmd:   file_control_win32_get_handle DB
5778 **
5779 ** This TCL command runs the sqlite3_file_control interface with
5780 ** the SQLITE_FCNTL_WIN32_GET_HANDLE opcode.
5781 */
5782 static int file_control_win32_get_handle(
5783   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5784   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5785   int objc,              /* Number of arguments */
5786   Tcl_Obj *CONST objv[]  /* Command arguments */
5787 ){
5788   sqlite3 *db;
5789   int rc;
5790   HANDLE hFile = NULL;
5791   char z[100];
5792 
5793   if( objc!=2 ){
5794     Tcl_AppendResult(interp, "wrong # args: should be \"",
5795         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5796     return TCL_ERROR;
5797   }
5798   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5799     return TCL_ERROR;
5800   }
5801   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_GET_HANDLE,
5802                             (void*)&hFile);
5803   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
5804   Tcl_AppendResult(interp, z, (char*)0);
5805   return TCL_OK;
5806 }
5807 
5808 /*
5809 ** tclcmd:   file_control_win32_set_handle DB HANDLE
5810 **
5811 ** This TCL command runs the sqlite3_file_control interface with
5812 ** the SQLITE_FCNTL_WIN32_SET_HANDLE opcode.
5813 */
5814 static int SQLITE_TCLAPI file_control_win32_set_handle(
5815   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5816   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5817   int objc,              /* Number of arguments */
5818   Tcl_Obj *CONST objv[]  /* Command arguments */
5819 ){
5820   sqlite3 *db;
5821   int rc;
5822   HANDLE hFile = NULL;
5823   char z[100];
5824 
5825   if( objc!=3 ){
5826     Tcl_AppendResult(interp, "wrong # args: should be \"",
5827         Tcl_GetStringFromObj(objv[0], 0), " DB HANDLE", 0);
5828     return TCL_ERROR;
5829   }
5830   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5831     return TCL_ERROR;
5832   }
5833   if( getWin32Handle(interp, Tcl_GetString(objv[2]), &hFile) ){
5834     return TCL_ERROR;
5835   }
5836   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_SET_HANDLE,
5837                             (void*)&hFile);
5838   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
5839   Tcl_AppendResult(interp, z, (char*)0);
5840   return TCL_OK;
5841 }
5842 #endif
5843 
5844 /*
5845 ** tclcmd:   file_control_persist_wal DB PERSIST-FLAG
5846 **
5847 ** This TCL command runs the sqlite3_file_control interface with
5848 ** the SQLITE_FCNTL_PERSIST_WAL opcode.
5849 */
5850 static int SQLITE_TCLAPI file_control_persist_wal(
5851   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5852   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5853   int objc,              /* Number of arguments */
5854   Tcl_Obj *CONST objv[]  /* Command arguments */
5855 ){
5856   sqlite3 *db;
5857   int rc;
5858   int bPersist;
5859   char z[100];
5860 
5861   if( objc!=3 ){
5862     Tcl_AppendResult(interp, "wrong # args: should be \"",
5863         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
5864     return TCL_ERROR;
5865   }
5866   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5867     return TCL_ERROR;
5868   }
5869   if( Tcl_GetIntFromObj(interp, objv[2], &bPersist) ) return TCL_ERROR;
5870   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_PERSIST_WAL, (void*)&bPersist);
5871   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, bPersist);
5872   Tcl_AppendResult(interp, z, (char*)0);
5873   return TCL_OK;
5874 }
5875 
5876 /*
5877 ** tclcmd:   file_control_powersafe_overwrite DB PSOW-FLAG
5878 **
5879 ** This TCL command runs the sqlite3_file_control interface with
5880 ** the SQLITE_FCNTL_POWERSAFE_OVERWRITE opcode.
5881 */
5882 static int SQLITE_TCLAPI file_control_powersafe_overwrite(
5883   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5884   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5885   int objc,              /* Number of arguments */
5886   Tcl_Obj *CONST objv[]  /* Command arguments */
5887 ){
5888   sqlite3 *db;
5889   int rc;
5890   int b;
5891   char z[100];
5892 
5893   if( objc!=3 ){
5894     Tcl_AppendResult(interp, "wrong # args: should be \"",
5895         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
5896     return TCL_ERROR;
5897   }
5898   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5899     return TCL_ERROR;
5900   }
5901   if( Tcl_GetIntFromObj(interp, objv[2], &b) ) return TCL_ERROR;
5902   rc = sqlite3_file_control(db,NULL,SQLITE_FCNTL_POWERSAFE_OVERWRITE,(void*)&b);
5903   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, b);
5904   Tcl_AppendResult(interp, z, (char*)0);
5905   return TCL_OK;
5906 }
5907 
5908 
5909 /*
5910 ** tclcmd:   file_control_vfsname DB ?AUXDB?
5911 **
5912 ** Return a string that describes the stack of VFSes.
5913 */
5914 static int SQLITE_TCLAPI file_control_vfsname(
5915   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5916   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5917   int objc,              /* Number of arguments */
5918   Tcl_Obj *CONST objv[]  /* Command arguments */
5919 ){
5920   sqlite3 *db;
5921   const char *zDbName = "main";
5922   char *zVfsName = 0;
5923 
5924   if( objc!=2 && objc!=3 ){
5925     Tcl_AppendResult(interp, "wrong # args: should be \"",
5926         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
5927     return TCL_ERROR;
5928   }
5929   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5930     return TCL_ERROR;
5931   }
5932   if( objc==3 ){
5933     zDbName = Tcl_GetString(objv[2]);
5934   }
5935   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_VFSNAME,(void*)&zVfsName);
5936   Tcl_AppendResult(interp, zVfsName, (char*)0);
5937   sqlite3_free(zVfsName);
5938   return TCL_OK;
5939 }
5940 
5941 /*
5942 ** tclcmd:   file_control_tempfilename DB ?AUXDB?
5943 **
5944 ** Return a string that is a temporary filename
5945 */
5946 static int SQLITE_TCLAPI file_control_tempfilename(
5947   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5948   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5949   int objc,              /* Number of arguments */
5950   Tcl_Obj *CONST objv[]  /* Command arguments */
5951 ){
5952   sqlite3 *db;
5953   const char *zDbName = "main";
5954   char *zTName = 0;
5955 
5956   if( objc!=2 && objc!=3 ){
5957     Tcl_AppendResult(interp, "wrong # args: should be \"",
5958         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
5959     return TCL_ERROR;
5960   }
5961   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5962     return TCL_ERROR;
5963   }
5964   if( objc==3 ){
5965     zDbName = Tcl_GetString(objv[2]);
5966   }
5967   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_TEMPFILENAME, (void*)&zTName);
5968   Tcl_AppendResult(interp, zTName, (char*)0);
5969   sqlite3_free(zTName);
5970   return TCL_OK;
5971 }
5972 
5973 
5974 /*
5975 ** tclcmd:   sqlite3_vfs_list
5976 **
5977 **   Return a tcl list containing the names of all registered vfs's.
5978 */
5979 static int SQLITE_TCLAPI vfs_list(
5980   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5981   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5982   int objc,              /* Number of arguments */
5983   Tcl_Obj *CONST objv[]  /* Command arguments */
5984 ){
5985   sqlite3_vfs *pVfs;
5986   Tcl_Obj *pRet = Tcl_NewObj();
5987   if( objc!=1 ){
5988     Tcl_WrongNumArgs(interp, 1, objv, "");
5989     return TCL_ERROR;
5990   }
5991   for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
5992     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(pVfs->zName, -1));
5993   }
5994   Tcl_SetObjResult(interp, pRet);
5995   return TCL_OK;
5996 }
5997 
5998 /*
5999 ** tclcmd:   sqlite3_limit DB ID VALUE
6000 **
6001 ** This TCL command runs the sqlite3_limit interface and
6002 ** verifies correct operation of the same.
6003 */
6004 static int SQLITE_TCLAPI test_limit(
6005   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6006   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6007   int objc,              /* Number of arguments */
6008   Tcl_Obj *CONST objv[]  /* Command arguments */
6009 ){
6010   sqlite3 *db;
6011   int rc;
6012   static const struct {
6013      char *zName;
6014      int id;
6015   } aId[] = {
6016     { "SQLITE_LIMIT_LENGTH",              SQLITE_LIMIT_LENGTH               },
6017     { "SQLITE_LIMIT_SQL_LENGTH",          SQLITE_LIMIT_SQL_LENGTH           },
6018     { "SQLITE_LIMIT_COLUMN",              SQLITE_LIMIT_COLUMN               },
6019     { "SQLITE_LIMIT_EXPR_DEPTH",          SQLITE_LIMIT_EXPR_DEPTH           },
6020     { "SQLITE_LIMIT_COMPOUND_SELECT",     SQLITE_LIMIT_COMPOUND_SELECT      },
6021     { "SQLITE_LIMIT_VDBE_OP",             SQLITE_LIMIT_VDBE_OP              },
6022     { "SQLITE_LIMIT_FUNCTION_ARG",        SQLITE_LIMIT_FUNCTION_ARG         },
6023     { "SQLITE_LIMIT_ATTACHED",            SQLITE_LIMIT_ATTACHED             },
6024     { "SQLITE_LIMIT_LIKE_PATTERN_LENGTH", SQLITE_LIMIT_LIKE_PATTERN_LENGTH  },
6025     { "SQLITE_LIMIT_VARIABLE_NUMBER",     SQLITE_LIMIT_VARIABLE_NUMBER      },
6026     { "SQLITE_LIMIT_TRIGGER_DEPTH",       SQLITE_LIMIT_TRIGGER_DEPTH        },
6027     { "SQLITE_LIMIT_WORKER_THREADS",      SQLITE_LIMIT_WORKER_THREADS       },
6028 
6029     /* Out of range test cases */
6030     { "SQLITE_LIMIT_TOOSMALL",            -1,                               },
6031     { "SQLITE_LIMIT_TOOBIG",              SQLITE_LIMIT_WORKER_THREADS+1     },
6032   };
6033   int i, id = 0;
6034   int val;
6035   const char *zId;
6036 
6037   if( objc!=4 ){
6038     Tcl_AppendResult(interp, "wrong # args: should be \"",
6039         Tcl_GetStringFromObj(objv[0], 0), " DB ID VALUE", 0);
6040     return TCL_ERROR;
6041   }
6042   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6043   zId = Tcl_GetString(objv[2]);
6044   for(i=0; i<sizeof(aId)/sizeof(aId[0]); i++){
6045     if( strcmp(zId, aId[i].zName)==0 ){
6046       id = aId[i].id;
6047       break;
6048     }
6049   }
6050   if( i>=sizeof(aId)/sizeof(aId[0]) ){
6051     Tcl_AppendResult(interp, "unknown limit type: ", zId, (char*)0);
6052     return TCL_ERROR;
6053   }
6054   if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
6055   rc = sqlite3_limit(db, id, val);
6056   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
6057   return TCL_OK;
6058 }
6059 
6060 /*
6061 ** tclcmd:  save_prng_state
6062 **
6063 ** Save the state of the pseudo-random number generator.
6064 ** At the same time, verify that sqlite3_test_control works even when
6065 ** called with an out-of-range opcode.
6066 */
6067 static int SQLITE_TCLAPI save_prng_state(
6068   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6069   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6070   int objc,              /* Number of arguments */
6071   Tcl_Obj *CONST objv[]  /* Command arguments */
6072 ){
6073   int rc = sqlite3_test_control(9999);
6074   assert( rc==0 );
6075   rc = sqlite3_test_control(-1);
6076   assert( rc==0 );
6077   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SAVE);
6078   return TCL_OK;
6079 }
6080 /*
6081 ** tclcmd:  restore_prng_state
6082 */
6083 static int SQLITE_TCLAPI restore_prng_state(
6084   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6085   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6086   int objc,              /* Number of arguments */
6087   Tcl_Obj *CONST objv[]  /* Command arguments */
6088 ){
6089   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESTORE);
6090   return TCL_OK;
6091 }
6092 /*
6093 ** tclcmd:  reset_prng_state
6094 */
6095 static int SQLITE_TCLAPI reset_prng_state(
6096   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6097   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6098   int objc,              /* Number of arguments */
6099   Tcl_Obj *CONST objv[]  /* Command arguments */
6100 ){
6101   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESET);
6102   return TCL_OK;
6103 }
6104 
6105 /*
6106 ** tclcmd:  database_may_be_corrupt
6107 **
6108 ** Indicate that database files might be corrupt.  In other words, set the normal
6109 ** state of operation.
6110 */
6111 static int SQLITE_TCLAPI database_may_be_corrupt(
6112   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6113   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6114   int objc,              /* Number of arguments */
6115   Tcl_Obj *CONST objv[]  /* Command arguments */
6116 ){
6117   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 0);
6118   return TCL_OK;
6119 }
6120 /*
6121 ** tclcmd:  database_never_corrupt
6122 **
6123 ** Indicate that database files are always well-formed.  This enables extra assert()
6124 ** statements that test conditions that are always true for well-formed databases.
6125 */
6126 static int SQLITE_TCLAPI database_never_corrupt(
6127   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6128   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6129   int objc,              /* Number of arguments */
6130   Tcl_Obj *CONST objv[]  /* Command arguments */
6131 ){
6132   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 1);
6133   return TCL_OK;
6134 }
6135 
6136 /*
6137 ** tclcmd:  pcache_stats
6138 */
6139 static int SQLITE_TCLAPI test_pcache_stats(
6140   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6141   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6142   int objc,              /* Number of arguments */
6143   Tcl_Obj *CONST objv[]  /* Command arguments */
6144 ){
6145   int nMin;
6146   int nMax;
6147   int nCurrent;
6148   int nRecyclable;
6149   Tcl_Obj *pRet;
6150 
6151   sqlite3PcacheStats(&nCurrent, &nMax, &nMin, &nRecyclable);
6152 
6153   pRet = Tcl_NewObj();
6154   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("current", -1));
6155   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCurrent));
6156   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("max", -1));
6157   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMax));
6158   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("min", -1));
6159   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMin));
6160   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("recyclable", -1));
6161   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nRecyclable));
6162 
6163   Tcl_SetObjResult(interp, pRet);
6164 
6165   return TCL_OK;
6166 }
6167 
6168 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6169 static void test_unlock_notify_cb(void **aArg, int nArg){
6170   int ii;
6171   for(ii=0; ii<nArg; ii++){
6172     Tcl_EvalEx((Tcl_Interp *)aArg[ii], "unlock_notify", -1, TCL_EVAL_GLOBAL);
6173   }
6174 }
6175 #endif /* SQLITE_ENABLE_UNLOCK_NOTIFY */
6176 
6177 /*
6178 ** tclcmd:  sqlite3_unlock_notify db
6179 */
6180 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6181 static int SQLITE_TCLAPI test_unlock_notify(
6182   ClientData clientData, /* Unused */
6183   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6184   int objc,              /* Number of arguments */
6185   Tcl_Obj *CONST objv[]  /* Command arguments */
6186 ){
6187   sqlite3 *db;
6188   int rc;
6189 
6190   if( objc!=2 ){
6191     Tcl_WrongNumArgs(interp, 1, objv, "DB");
6192     return TCL_ERROR;
6193   }
6194 
6195   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6196     return TCL_ERROR;
6197   }
6198   rc = sqlite3_unlock_notify(db, test_unlock_notify_cb, (void *)interp);
6199   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6200   return TCL_OK;
6201 }
6202 #endif
6203 
6204 /*
6205 ** tclcmd:  sqlite3_wal_checkpoint db ?NAME?
6206 */
6207 static int SQLITE_TCLAPI test_wal_checkpoint(
6208   ClientData clientData, /* Unused */
6209   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6210   int objc,              /* Number of arguments */
6211   Tcl_Obj *CONST objv[]  /* Command arguments */
6212 ){
6213   char *zDb = 0;
6214   sqlite3 *db;
6215   int rc;
6216 
6217   if( objc!=3 && objc!=2 ){
6218     Tcl_WrongNumArgs(interp, 1, objv, "DB ?NAME?");
6219     return TCL_ERROR;
6220   }
6221 
6222   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6223     return TCL_ERROR;
6224   }
6225   if( objc==3 ){
6226     zDb = Tcl_GetString(objv[2]);
6227   }
6228   rc = sqlite3_wal_checkpoint(db, zDb);
6229   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6230   return TCL_OK;
6231 }
6232 
6233 /*
6234 ** tclcmd:  sqlite3_wal_checkpoint_v2 db MODE ?NAME?
6235 **
6236 ** This command calls the wal_checkpoint_v2() function with the specified
6237 ** mode argument (passive, full or restart). If present, the database name
6238 ** NAME is passed as the second argument to wal_checkpoint_v2(). If it the
6239 ** NAME argument is not present, a NULL pointer is passed instead.
6240 **
6241 ** If wal_checkpoint_v2() returns any value other than SQLITE_BUSY or
6242 ** SQLITE_OK, then this command returns TCL_ERROR. The Tcl result is set
6243 ** to the error message obtained from sqlite3_errmsg().
6244 **
6245 ** Otherwise, this command returns a list of three integers. The first integer
6246 ** is 1 if SQLITE_BUSY was returned, or 0 otherwise. The following two integers
6247 ** are the values returned via the output parameters by wal_checkpoint_v2() -
6248 ** the number of frames in the log and the number of frames in the log
6249 ** that have been checkpointed.
6250 */
6251 static int SQLITE_TCLAPI test_wal_checkpoint_v2(
6252   ClientData clientData, /* Unused */
6253   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6254   int objc,              /* Number of arguments */
6255   Tcl_Obj *CONST objv[]  /* Command arguments */
6256 ){
6257   char *zDb = 0;
6258   sqlite3 *db;
6259   int rc;
6260 
6261   int eMode;
6262   int nLog = -555;
6263   int nCkpt = -555;
6264   Tcl_Obj *pRet;
6265 
6266   const char * aMode[] = { "passive", "full", "restart", "truncate", 0 };
6267   assert( SQLITE_CHECKPOINT_PASSIVE==0 );
6268   assert( SQLITE_CHECKPOINT_FULL==1 );
6269   assert( SQLITE_CHECKPOINT_RESTART==2 );
6270   assert( SQLITE_CHECKPOINT_TRUNCATE==3 );
6271 
6272   if( objc!=3 && objc!=4 ){
6273     Tcl_WrongNumArgs(interp, 1, objv, "DB MODE ?NAME?");
6274     return TCL_ERROR;
6275   }
6276 
6277   if( objc==4 ){
6278     zDb = Tcl_GetString(objv[3]);
6279   }
6280   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) || (
6281       TCL_OK!=Tcl_GetIntFromObj(0, objv[2], &eMode)
6282    && TCL_OK!=Tcl_GetIndexFromObj(interp, objv[2], aMode, "mode", 0, &eMode)
6283   )){
6284     return TCL_ERROR;
6285   }
6286 
6287   rc = sqlite3_wal_checkpoint_v2(db, zDb, eMode, &nLog, &nCkpt);
6288   if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){
6289     const char *zErrCode = sqlite3ErrName(rc);
6290     Tcl_ResetResult(interp);
6291     Tcl_AppendResult(interp, zErrCode, " - ", (char *)sqlite3_errmsg(db), 0);
6292     return TCL_ERROR;
6293   }
6294 
6295   pRet = Tcl_NewObj();
6296   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(rc==SQLITE_BUSY?1:0));
6297   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nLog));
6298   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCkpt));
6299   Tcl_SetObjResult(interp, pRet);
6300 
6301   return TCL_OK;
6302 }
6303 
6304 /*
6305 ** tclcmd:  sqlite3_wal_autocheckpoint db VALUE
6306 */
6307 static int SQLITE_TCLAPI test_wal_autocheckpoint(
6308   ClientData clientData, /* Unused */
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 *db;
6314   int rc;
6315   int iVal;
6316 
6317 
6318   if( objc!=3 ){
6319     Tcl_WrongNumArgs(interp, 1, objv, "DB VALUE");
6320     return TCL_ERROR;
6321   }
6322 
6323   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
6324    || Tcl_GetIntFromObj(0, objv[2], &iVal)
6325   ){
6326     return TCL_ERROR;
6327   }
6328 
6329   rc = sqlite3_wal_autocheckpoint(db, iVal);
6330   Tcl_ResetResult(interp);
6331   if( rc!=SQLITE_OK ){
6332     const char *zErrCode = sqlite3ErrName(rc);
6333     Tcl_SetObjResult(interp, Tcl_NewStringObj(zErrCode, -1));
6334     return TCL_ERROR;
6335   }
6336 
6337   return TCL_OK;
6338 }
6339 
6340 
6341 /*
6342 ** tclcmd:  test_sqlite3_log ?SCRIPT?
6343 */
6344 static struct LogCallback {
6345   Tcl_Interp *pInterp;
6346   Tcl_Obj *pObj;
6347 } logcallback = {0, 0};
6348 static void xLogcallback(void *unused, int err, char *zMsg){
6349   Tcl_Obj *pNew = Tcl_DuplicateObj(logcallback.pObj);
6350   Tcl_IncrRefCount(pNew);
6351   Tcl_ListObjAppendElement(
6352       0, pNew, Tcl_NewStringObj(sqlite3ErrName(err), -1)
6353   );
6354   Tcl_ListObjAppendElement(0, pNew, Tcl_NewStringObj(zMsg, -1));
6355   Tcl_EvalObjEx(logcallback.pInterp, pNew, TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT);
6356   Tcl_DecrRefCount(pNew);
6357 }
6358 static int SQLITE_TCLAPI test_sqlite3_log(
6359   ClientData clientData,
6360   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6361   int objc,              /* Number of arguments */
6362   Tcl_Obj *CONST objv[]  /* Command arguments */
6363 ){
6364   if( objc>2 ){
6365     Tcl_WrongNumArgs(interp, 1, objv, "SCRIPT");
6366     return TCL_ERROR;
6367   }
6368   if( logcallback.pObj ){
6369     Tcl_DecrRefCount(logcallback.pObj);
6370     logcallback.pObj = 0;
6371     logcallback.pInterp = 0;
6372     sqlite3_config(SQLITE_CONFIG_LOG, (void*)0, (void*)0);
6373   }
6374   if( objc>1 ){
6375     logcallback.pObj = objv[1];
6376     Tcl_IncrRefCount(logcallback.pObj);
6377     logcallback.pInterp = interp;
6378     sqlite3_config(SQLITE_CONFIG_LOG, xLogcallback, (void*)0);
6379   }
6380   return TCL_OK;
6381 }
6382 
6383 /*
6384 **     tcl_objproc COMMANDNAME ARGS...
6385 **
6386 ** Run a TCL command using its objProc interface.  Throw an error if
6387 ** the command has no objProc interface.
6388 */
6389 static int SQLITE_TCLAPI runAsObjProc(
6390   void * clientData,
6391   Tcl_Interp *interp,
6392   int objc,
6393   Tcl_Obj *CONST objv[]
6394 ){
6395   Tcl_CmdInfo cmdInfo;
6396   if( objc<2 ){
6397     Tcl_WrongNumArgs(interp, 1, objv, "COMMAND ...");
6398     return TCL_ERROR;
6399   }
6400   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
6401     Tcl_AppendResult(interp, "command not found: ",
6402            Tcl_GetString(objv[1]), (char*)0);
6403     return TCL_ERROR;
6404   }
6405   if( cmdInfo.objProc==0 ){
6406     Tcl_AppendResult(interp, "command has no objProc: ",
6407            Tcl_GetString(objv[1]), (char*)0);
6408     return TCL_ERROR;
6409   }
6410   return cmdInfo.objProc(cmdInfo.objClientData, interp, objc-1, objv+1);
6411 }
6412 
6413 #ifndef SQLITE_OMIT_EXPLAIN
6414 /*
6415 ** WARNING: The following function, printExplainQueryPlan() is an exact
6416 ** copy of example code from eqp.in (eqp.html). If this code is modified,
6417 ** then the documentation copy needs to be modified as well.
6418 */
6419 /*
6420 ** Argument pStmt is a prepared SQL statement. This function compiles
6421 ** an EXPLAIN QUERY PLAN command to report on the prepared statement,
6422 ** and prints the report to stdout using printf().
6423 */
6424 int printExplainQueryPlan(sqlite3_stmt *pStmt){
6425   const char *zSql;               /* Input SQL */
6426   char *zExplain;                 /* SQL with EXPLAIN QUERY PLAN prepended */
6427   sqlite3_stmt *pExplain;         /* Compiled EXPLAIN QUERY PLAN command */
6428   int rc;                         /* Return code from sqlite3_prepare_v2() */
6429 
6430   zSql = sqlite3_sql(pStmt);
6431   if( zSql==0 ) return SQLITE_ERROR;
6432 
6433   zExplain = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", zSql);
6434   if( zExplain==0 ) return SQLITE_NOMEM;
6435 
6436   rc = sqlite3_prepare_v2(sqlite3_db_handle(pStmt), zExplain, -1, &pExplain, 0);
6437   sqlite3_free(zExplain);
6438   if( rc!=SQLITE_OK ) return rc;
6439 
6440   while( SQLITE_ROW==sqlite3_step(pExplain) ){
6441     int iSelectid = sqlite3_column_int(pExplain, 0);
6442     int iOrder = sqlite3_column_int(pExplain, 1);
6443     int iFrom = sqlite3_column_int(pExplain, 2);
6444     const char *zDetail = (const char *)sqlite3_column_text(pExplain, 3);
6445 
6446     printf("%d %d %d %s\n", iSelectid, iOrder, iFrom, zDetail);
6447   }
6448 
6449   return sqlite3_finalize(pExplain);
6450 }
6451 
6452 static int SQLITE_TCLAPI test_print_eqp(
6453   void * clientData,
6454   Tcl_Interp *interp,
6455   int objc,
6456   Tcl_Obj *CONST objv[]
6457 ){
6458   int rc;
6459   sqlite3_stmt *pStmt;
6460 
6461   if( objc!=2 ){
6462     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
6463     return TCL_ERROR;
6464   }
6465   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
6466   rc = printExplainQueryPlan(pStmt);
6467   /* This is needed on Windows so that a test case using this
6468   ** function can open a read pipe and get the output of
6469   ** printExplainQueryPlan() immediately.
6470   */
6471   fflush(stdout);
6472   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
6473   return TCL_OK;
6474 }
6475 #endif /* SQLITE_OMIT_EXPLAIN */
6476 
6477 /*
6478 ** sqlite3_test_control VERB ARGS...
6479 */
6480 static int SQLITE_TCLAPI test_test_control(
6481   void * clientData,
6482   Tcl_Interp *interp,
6483   int objc,
6484   Tcl_Obj *CONST objv[]
6485 ){
6486   struct Verb {
6487     const char *zName;
6488     int i;
6489   } aVerb[] = {
6490     { "SQLITE_TESTCTRL_LOCALTIME_FAULT", SQLITE_TESTCTRL_LOCALTIME_FAULT },
6491     { "SQLITE_TESTCTRL_SORTER_MMAP",     SQLITE_TESTCTRL_SORTER_MMAP     },
6492     { "SQLITE_TESTCTRL_IMPOSTER",        SQLITE_TESTCTRL_IMPOSTER        },
6493   };
6494   int iVerb;
6495   int iFlag;
6496   int rc;
6497 
6498   if( objc<2 ){
6499     Tcl_WrongNumArgs(interp, 1, objv, "VERB ARGS...");
6500     return TCL_ERROR;
6501   }
6502 
6503   rc = Tcl_GetIndexFromObjStruct(
6504       interp, objv[1], aVerb, sizeof(aVerb[0]), "VERB", 0, &iVerb
6505   );
6506   if( rc!=TCL_OK ) return rc;
6507 
6508   iFlag = aVerb[iVerb].i;
6509   switch( iFlag ){
6510     case SQLITE_TESTCTRL_LOCALTIME_FAULT: {
6511       int val;
6512       if( objc!=3 ){
6513         Tcl_WrongNumArgs(interp, 2, objv, "ONOFF");
6514         return TCL_ERROR;
6515       }
6516       if( Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
6517       sqlite3_test_control(SQLITE_TESTCTRL_LOCALTIME_FAULT, val);
6518       break;
6519     }
6520 
6521     case SQLITE_TESTCTRL_SORTER_MMAP: {
6522       int val;
6523       sqlite3 *db;
6524       if( objc!=4 ){
6525         Tcl_WrongNumArgs(interp, 2, objv, "DB LIMIT");
6526         return TCL_ERROR;
6527       }
6528       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
6529       if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
6530       sqlite3_test_control(SQLITE_TESTCTRL_SORTER_MMAP, db, val);
6531       break;
6532     }
6533 
6534     case SQLITE_TESTCTRL_IMPOSTER: {
6535       int onOff, tnum;
6536       const char *zDbName;
6537       sqlite3 *db;
6538       if( objc!=6 ){
6539         Tcl_WrongNumArgs(interp, 2, objv, "DB dbName onOff tnum");
6540         return TCL_ERROR;
6541       }
6542       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
6543       zDbName = Tcl_GetString(objv[3]);
6544       if( Tcl_GetIntFromObj(interp, objv[4], &onOff) ) return TCL_ERROR;
6545       if( Tcl_GetIntFromObj(interp, objv[5], &tnum) ) return TCL_ERROR;
6546       sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, zDbName, onOff, tnum);
6547       break;
6548     }
6549   }
6550 
6551   Tcl_ResetResult(interp);
6552   return TCL_OK;
6553 }
6554 
6555 #if SQLITE_OS_UNIX
6556 #include <sys/time.h>
6557 #include <sys/resource.h>
6558 
6559 static int SQLITE_TCLAPI test_getrusage(
6560   void * clientData,
6561   Tcl_Interp *interp,
6562   int objc,
6563   Tcl_Obj *CONST objv[]
6564 ){
6565   char buf[1024];
6566   struct rusage r;
6567   memset(&r, 0, sizeof(r));
6568   getrusage(RUSAGE_SELF, &r);
6569 
6570   sqlite3_snprintf(sizeof(buf), buf,
6571     "ru_utime=%d.%06d ru_stime=%d.%06d ru_minflt=%d ru_majflt=%d",
6572     (int)r.ru_utime.tv_sec, (int)r.ru_utime.tv_usec,
6573     (int)r.ru_stime.tv_sec, (int)r.ru_stime.tv_usec,
6574     (int)r.ru_minflt, (int)r.ru_majflt
6575   );
6576   Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, -1));
6577   return TCL_OK;
6578 }
6579 #endif
6580 
6581 #if SQLITE_OS_WIN
6582 /*
6583 ** Information passed from the main thread into the windows file locker
6584 ** background thread.
6585 */
6586 struct win32FileLocker {
6587   char *evName;       /* Name of event to signal thread startup */
6588   HANDLE h;           /* Handle of the file to be locked */
6589   int delay1;         /* Delay before locking */
6590   int delay2;         /* Delay before unlocking */
6591   int ok;             /* Finished ok */
6592   int err;            /* True if an error occurs */
6593 };
6594 #endif
6595 
6596 
6597 #if SQLITE_OS_WIN
6598 #include <process.h>
6599 /*
6600 ** The background thread that does file locking.
6601 */
6602 static void SQLITE_CDECL win32_file_locker(void *pAppData){
6603   struct win32FileLocker *p = (struct win32FileLocker*)pAppData;
6604   if( p->evName ){
6605     HANDLE ev = OpenEvent(EVENT_MODIFY_STATE, FALSE, p->evName);
6606     if ( ev ){
6607       SetEvent(ev);
6608       CloseHandle(ev);
6609     }
6610   }
6611   if( p->delay1 ) Sleep(p->delay1);
6612   if( LockFile(p->h, 0, 0, 100000000, 0) ){
6613     Sleep(p->delay2);
6614     UnlockFile(p->h, 0, 0, 100000000, 0);
6615     p->ok = 1;
6616   }else{
6617     p->err = 1;
6618   }
6619   CloseHandle(p->h);
6620   p->h = 0;
6621   p->delay1 = 0;
6622   p->delay2 = 0;
6623 }
6624 #endif
6625 
6626 #if SQLITE_OS_WIN
6627 /*
6628 **      lock_win32_file FILENAME DELAY1 DELAY2
6629 **
6630 ** Get an exclusive manditory lock on file for DELAY2 milliseconds.
6631 ** Wait DELAY1 milliseconds before acquiring the lock.
6632 */
6633 static int SQLITE_TCLAPI win32_file_lock(
6634   void * clientData,
6635   Tcl_Interp *interp,
6636   int objc,
6637   Tcl_Obj *CONST objv[]
6638 ){
6639   static struct win32FileLocker x = { "win32_file_lock", 0, 0, 0, 0, 0 };
6640   const char *zFilename;
6641   char zBuf[200];
6642   int retry = 0;
6643   HANDLE ev;
6644   DWORD wResult;
6645 
6646   if( objc!=4 && objc!=1 ){
6647     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME DELAY1 DELAY2");
6648     return TCL_ERROR;
6649   }
6650   if( objc==1 ){
6651     sqlite3_snprintf(sizeof(zBuf), zBuf, "%d %d %d %d %d",
6652                      x.ok, x.err, x.delay1, x.delay2, x.h);
6653     Tcl_AppendResult(interp, zBuf, (char*)0);
6654     return TCL_OK;
6655   }
6656   while( x.h && retry<30 ){
6657     retry++;
6658     Sleep(100);
6659   }
6660   if( x.h ){
6661     Tcl_AppendResult(interp, "busy", (char*)0);
6662     return TCL_ERROR;
6663   }
6664   if( Tcl_GetIntFromObj(interp, objv[2], &x.delay1) ) return TCL_ERROR;
6665   if( Tcl_GetIntFromObj(interp, objv[3], &x.delay2) ) return TCL_ERROR;
6666   zFilename = Tcl_GetString(objv[1]);
6667   x.h = CreateFile(zFilename, GENERIC_READ|GENERIC_WRITE,
6668               FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_ALWAYS,
6669               FILE_ATTRIBUTE_NORMAL, 0);
6670   if( !x.h ){
6671     Tcl_AppendResult(interp, "cannot open file: ", zFilename, (char*)0);
6672     return TCL_ERROR;
6673   }
6674   ev = CreateEvent(NULL, TRUE, FALSE, x.evName);
6675   if ( !ev ){
6676     Tcl_AppendResult(interp, "cannot create event: ", x.evName, (char*)0);
6677     return TCL_ERROR;
6678   }
6679   _beginthread(win32_file_locker, 0, (void*)&x);
6680   Sleep(0);
6681   if ( (wResult = WaitForSingleObject(ev, 10000))!=WAIT_OBJECT_0 ){
6682     sqlite3_snprintf(sizeof(zBuf), zBuf, "0x%x", wResult);
6683     Tcl_AppendResult(interp, "wait failed: ", zBuf, (char*)0);
6684     CloseHandle(ev);
6685     return TCL_ERROR;
6686   }
6687   CloseHandle(ev);
6688   return TCL_OK;
6689 }
6690 
6691 /*
6692 **      exists_win32_path PATH
6693 **
6694 ** Returns non-zero if the specified path exists, whose fully qualified name
6695 ** may exceed 260 characters if it is prefixed with "\\?\".
6696 */
6697 static int SQLITE_TCLAPI win32_exists_path(
6698   void *clientData,
6699   Tcl_Interp *interp,
6700   int objc,
6701   Tcl_Obj *CONST objv[]
6702 ){
6703   if( objc!=2 ){
6704     Tcl_WrongNumArgs(interp, 1, objv, "PATH");
6705     return TCL_ERROR;
6706   }
6707   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(
6708       GetFileAttributesW( Tcl_GetUnicode(objv[1]))!=INVALID_FILE_ATTRIBUTES ));
6709   return TCL_OK;
6710 }
6711 
6712 /*
6713 **      find_win32_file PATTERN
6714 **
6715 ** Returns a list of entries in a directory that match the specified pattern,
6716 ** whose fully qualified name may exceed 248 characters if it is prefixed with
6717 ** "\\?\".
6718 */
6719 static int SQLITE_TCLAPI win32_find_file(
6720   void *clientData,
6721   Tcl_Interp *interp,
6722   int objc,
6723   Tcl_Obj *CONST objv[]
6724 ){
6725   HANDLE hFindFile = INVALID_HANDLE_VALUE;
6726   WIN32_FIND_DATAW findData;
6727   Tcl_Obj *listObj;
6728   DWORD lastErrno;
6729   if( objc!=2 ){
6730     Tcl_WrongNumArgs(interp, 1, objv, "PATTERN");
6731     return TCL_ERROR;
6732   }
6733   hFindFile = FindFirstFileW(Tcl_GetUnicode(objv[1]), &findData);
6734   if( hFindFile==INVALID_HANDLE_VALUE ){
6735     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6736     return TCL_ERROR;
6737   }
6738   listObj = Tcl_NewObj();
6739   Tcl_IncrRefCount(listObj);
6740   do {
6741     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewUnicodeObj(
6742         findData.cFileName, -1));
6743     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewWideIntObj(
6744         findData.dwFileAttributes));
6745   } while( FindNextFileW(hFindFile, &findData) );
6746   lastErrno = GetLastError();
6747   if( lastErrno!=NO_ERROR && lastErrno!=ERROR_NO_MORE_FILES ){
6748     FindClose(hFindFile);
6749     Tcl_DecrRefCount(listObj);
6750     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6751     return TCL_ERROR;
6752   }
6753   FindClose(hFindFile);
6754   Tcl_SetObjResult(interp, listObj);
6755   return TCL_OK;
6756 }
6757 
6758 /*
6759 **      delete_win32_file FILENAME
6760 **
6761 ** Deletes the specified file, whose fully qualified name may exceed 260
6762 ** characters if it is prefixed with "\\?\".
6763 */
6764 static int SQLITE_TCLAPI win32_delete_file(
6765   void *clientData,
6766   Tcl_Interp *interp,
6767   int objc,
6768   Tcl_Obj *CONST objv[]
6769 ){
6770   if( objc!=2 ){
6771     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME");
6772     return TCL_ERROR;
6773   }
6774   if( !DeleteFileW(Tcl_GetUnicode(objv[1])) ){
6775     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6776     return TCL_ERROR;
6777   }
6778   Tcl_ResetResult(interp);
6779   return TCL_OK;
6780 }
6781 
6782 /*
6783 **      make_win32_dir DIRECTORY
6784 **
6785 ** Creates the specified directory, whose fully qualified name may exceed 248
6786 ** characters if it is prefixed with "\\?\".
6787 */
6788 static int SQLITE_TCLAPI win32_mkdir(
6789   void *clientData,
6790   Tcl_Interp *interp,
6791   int objc,
6792   Tcl_Obj *CONST objv[]
6793 ){
6794   if( objc!=2 ){
6795     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
6796     return TCL_ERROR;
6797   }
6798   if( !CreateDirectoryW(Tcl_GetUnicode(objv[1]), NULL) ){
6799     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6800     return TCL_ERROR;
6801   }
6802   Tcl_ResetResult(interp);
6803   return TCL_OK;
6804 }
6805 
6806 /*
6807 **      remove_win32_dir DIRECTORY
6808 **
6809 ** Removes the specified directory, whose fully qualified name may exceed 248
6810 ** characters if it is prefixed with "\\?\".
6811 */
6812 static int SQLITE_TCLAPI win32_rmdir(
6813   void *clientData,
6814   Tcl_Interp *interp,
6815   int objc,
6816   Tcl_Obj *CONST objv[]
6817 ){
6818   if( objc!=2 ){
6819     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
6820     return TCL_ERROR;
6821   }
6822   if( !RemoveDirectoryW(Tcl_GetUnicode(objv[1])) ){
6823     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6824     return TCL_ERROR;
6825   }
6826   Tcl_ResetResult(interp);
6827   return TCL_OK;
6828 }
6829 #endif
6830 
6831 
6832 /*
6833 **      optimization_control DB OPT BOOLEAN
6834 **
6835 ** Enable or disable query optimizations using the sqlite3_test_control()
6836 ** interface.  Disable if BOOLEAN is false and enable if BOOLEAN is true.
6837 ** OPT is the name of the optimization to be disabled.
6838 */
6839 static int SQLITE_TCLAPI optimization_control(
6840   void * clientData,
6841   Tcl_Interp *interp,
6842   int objc,
6843   Tcl_Obj *CONST objv[]
6844 ){
6845   int i;
6846   sqlite3 *db;
6847   const char *zOpt;
6848   int onoff;
6849   int mask = 0;
6850   static const struct {
6851     const char *zOptName;
6852     int mask;
6853   } aOpt[] = {
6854     { "all",                 SQLITE_AllOpts        },
6855     { "none",                0                     },
6856     { "query-flattener",     SQLITE_QueryFlattener },
6857     { "column-cache",        SQLITE_ColumnCache    },
6858     { "groupby-order",       SQLITE_GroupByOrder   },
6859     { "factor-constants",    SQLITE_FactorOutConst },
6860     { "distinct-opt",        SQLITE_DistinctOpt    },
6861     { "cover-idx-scan",      SQLITE_CoverIdxScan   },
6862     { "order-by-idx-join",   SQLITE_OrderByIdxJoin },
6863     { "transitive",          SQLITE_Transitive     },
6864     { "subquery-coroutine",  SQLITE_SubqCoroutine  },
6865     { "omit-noop-join",      SQLITE_OmitNoopJoin   },
6866     { "stat3",               SQLITE_Stat34         },
6867     { "stat4",               SQLITE_Stat34         },
6868   };
6869 
6870   if( objc!=4 ){
6871     Tcl_WrongNumArgs(interp, 1, objv, "DB OPT BOOLEAN");
6872     return TCL_ERROR;
6873   }
6874   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6875   if( Tcl_GetBooleanFromObj(interp, objv[3], &onoff) ) return TCL_ERROR;
6876   zOpt = Tcl_GetString(objv[2]);
6877   for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
6878     if( strcmp(zOpt, aOpt[i].zOptName)==0 ){
6879       mask = aOpt[i].mask;
6880       break;
6881     }
6882   }
6883   if( onoff ) mask = ~mask;
6884   if( i>=sizeof(aOpt)/sizeof(aOpt[0]) ){
6885     Tcl_AppendResult(interp, "unknown optimization - should be one of:",
6886                      (char*)0);
6887     for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
6888       Tcl_AppendResult(interp, " ", aOpt[i].zOptName, (char*)0);
6889     }
6890     return TCL_ERROR;
6891   }
6892   sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, db, mask);
6893   return TCL_OK;
6894 }
6895 
6896 /*
6897 **     load_static_extension DB NAME ...
6898 **
6899 ** Load one or more statically linked extensions.
6900 */
6901 static int SQLITE_TCLAPI tclLoadStaticExtensionCmd(
6902   void * clientData,
6903   Tcl_Interp *interp,
6904   int objc,
6905   Tcl_Obj *CONST objv[]
6906 ){
6907   extern int sqlite3_amatch_init(sqlite3*,char**,const sqlite3_api_routines*);
6908   extern int sqlite3_carray_init(sqlite3*,char**,const sqlite3_api_routines*);
6909   extern int sqlite3_closure_init(sqlite3*,char**,const sqlite3_api_routines*);
6910   extern int sqlite3_csv_init(sqlite3*,char**,const sqlite3_api_routines*);
6911   extern int sqlite3_eval_init(sqlite3*,char**,const sqlite3_api_routines*);
6912   extern int sqlite3_fileio_init(sqlite3*,char**,const sqlite3_api_routines*);
6913   extern int sqlite3_fuzzer_init(sqlite3*,char**,const sqlite3_api_routines*);
6914   extern int sqlite3_ieee_init(sqlite3*,char**,const sqlite3_api_routines*);
6915   extern int sqlite3_nextchar_init(sqlite3*,char**,const sqlite3_api_routines*);
6916   extern int sqlite3_percentile_init(sqlite3*,char**,const sqlite3_api_routines*);
6917   extern int sqlite3_regexp_init(sqlite3*,char**,const sqlite3_api_routines*);
6918   extern int sqlite3_remember_init(sqlite3*,char**,const sqlite3_api_routines*);
6919   extern int sqlite3_series_init(sqlite3*,char**,const sqlite3_api_routines*);
6920   extern int sqlite3_spellfix_init(sqlite3*,char**,const sqlite3_api_routines*);
6921   extern int sqlite3_totype_init(sqlite3*,char**,const sqlite3_api_routines*);
6922   extern int sqlite3_wholenumber_init(sqlite3*,char**,const sqlite3_api_routines*);
6923   static const struct {
6924     const char *zExtName;
6925     int (*pInit)(sqlite3*,char**,const sqlite3_api_routines*);
6926   } aExtension[] = {
6927     { "amatch",                sqlite3_amatch_init               },
6928     { "carray",                sqlite3_carray_init               },
6929     { "closure",               sqlite3_closure_init              },
6930     { "csv",                   sqlite3_csv_init                  },
6931     { "eval",                  sqlite3_eval_init                 },
6932     { "fileio",                sqlite3_fileio_init               },
6933     { "fuzzer",                sqlite3_fuzzer_init               },
6934     { "ieee754",               sqlite3_ieee_init                 },
6935     { "nextchar",              sqlite3_nextchar_init             },
6936     { "percentile",            sqlite3_percentile_init           },
6937     { "regexp",                sqlite3_regexp_init               },
6938     { "remember",              sqlite3_remember_init             },
6939     { "series",                sqlite3_series_init               },
6940     { "spellfix",              sqlite3_spellfix_init             },
6941     { "totype",                sqlite3_totype_init               },
6942     { "wholenumber",           sqlite3_wholenumber_init          },
6943   };
6944   sqlite3 *db;
6945   const char *zName;
6946   int i, j, rc;
6947   char *zErrMsg = 0;
6948   if( objc<3 ){
6949     Tcl_WrongNumArgs(interp, 1, objv, "DB NAME ...");
6950     return TCL_ERROR;
6951   }
6952   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6953   for(j=2; j<objc; j++){
6954     zName = Tcl_GetString(objv[j]);
6955     for(i=0; i<ArraySize(aExtension); i++){
6956       if( strcmp(zName, aExtension[i].zExtName)==0 ) break;
6957     }
6958     if( i>=ArraySize(aExtension) ){
6959       Tcl_AppendResult(interp, "no such extension: ", zName, (char*)0);
6960       return TCL_ERROR;
6961     }
6962     if( aExtension[i].pInit ){
6963       rc = aExtension[i].pInit(db, &zErrMsg, 0);
6964     }else{
6965       rc = SQLITE_OK;
6966     }
6967     if( rc!=SQLITE_OK || zErrMsg ){
6968       Tcl_AppendResult(interp, "initialization of ", zName, " failed: ", zErrMsg,
6969                        (char*)0);
6970       sqlite3_free(zErrMsg);
6971       return TCL_ERROR;
6972     }
6973   }
6974   return TCL_OK;
6975 }
6976 
6977 /*
6978 **     sorter_test_fakeheap BOOL
6979 **
6980 */
6981 static int SQLITE_TCLAPI sorter_test_fakeheap(
6982   void * clientData,
6983   Tcl_Interp *interp,
6984   int objc,
6985   Tcl_Obj *CONST objv[]
6986 ){
6987   int bArg;
6988   if( objc!=2 ){
6989     Tcl_WrongNumArgs(interp, 1, objv, "BOOL");
6990     return TCL_ERROR;
6991   }
6992 
6993   if( Tcl_GetBooleanFromObj(interp, objv[1], &bArg) ){
6994     return TCL_ERROR;
6995   }
6996 
6997   if( bArg ){
6998     if( sqlite3GlobalConfig.pHeap==0 ){
6999       sqlite3GlobalConfig.pHeap = SQLITE_INT_TO_PTR(-1);
7000     }
7001   }else{
7002     if( sqlite3GlobalConfig.pHeap==SQLITE_INT_TO_PTR(-1) ){
7003       sqlite3GlobalConfig.pHeap = 0;
7004     }
7005   }
7006 
7007   Tcl_ResetResult(interp);
7008   return TCL_OK;
7009 }
7010 
7011 /*
7012 **     sorter_test_sort4_helper DB SQL1 NSTEP SQL2
7013 **
7014 ** Compile SQL statement $SQL1 and step it $NSTEP times. For each row,
7015 ** check that the leftmost and rightmost columns returned are both integers,
7016 ** and that both contain the same value.
7017 **
7018 ** Then execute statement $SQL2. Check that the statement returns the same
7019 ** set of integers in the same order as in the previous step (using $SQL1).
7020 */
7021 static int SQLITE_TCLAPI sorter_test_sort4_helper(
7022   void * clientData,
7023   Tcl_Interp *interp,
7024   int objc,
7025   Tcl_Obj *CONST objv[]
7026 ){
7027   const char *zSql1;
7028   const char *zSql2;
7029   int nStep;
7030   int iStep;
7031   unsigned int iCksum1 = 0;
7032   unsigned int iCksum2 = 0;
7033   int rc;
7034   int iB;
7035   sqlite3 *db;
7036   sqlite3_stmt *pStmt;
7037 
7038   if( objc!=5 ){
7039     Tcl_WrongNumArgs(interp, 1, objv, "DB SQL1 NSTEP SQL2");
7040     return TCL_ERROR;
7041   }
7042 
7043   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7044   zSql1 = Tcl_GetString(objv[2]);
7045   if( Tcl_GetIntFromObj(interp, objv[3], &nStep) ) return TCL_ERROR;
7046   zSql2 = Tcl_GetString(objv[4]);
7047 
7048   rc = sqlite3_prepare_v2(db, zSql1, -1, &pStmt, 0);
7049   if( rc!=SQLITE_OK ) goto sql_error;
7050 
7051   iB = sqlite3_column_count(pStmt)-1;
7052   for(iStep=0; iStep<nStep && SQLITE_ROW==sqlite3_step(pStmt); iStep++){
7053     int a = sqlite3_column_int(pStmt, 0);
7054     if( a!=sqlite3_column_int(pStmt, iB) ){
7055       Tcl_AppendResult(interp, "data error: (a!=b)", 0);
7056       return TCL_ERROR;
7057     }
7058 
7059     iCksum1 += (iCksum1 << 3) + (unsigned int)a;
7060   }
7061   rc = sqlite3_finalize(pStmt);
7062   if( rc!=SQLITE_OK ) goto sql_error;
7063 
7064   rc = sqlite3_prepare_v2(db, zSql2, -1, &pStmt, 0);
7065   if( rc!=SQLITE_OK ) goto sql_error;
7066   for(iStep=0; SQLITE_ROW==sqlite3_step(pStmt); iStep++){
7067     int a = sqlite3_column_int(pStmt, 0);
7068     iCksum2 += (iCksum2 << 3) + (unsigned int)a;
7069   }
7070   rc = sqlite3_finalize(pStmt);
7071   if( rc!=SQLITE_OK ) goto sql_error;
7072 
7073   if( iCksum1!=iCksum2 ){
7074     Tcl_AppendResult(interp, "checksum mismatch", 0);
7075     return TCL_ERROR;
7076   }
7077 
7078   return TCL_OK;
7079  sql_error:
7080   Tcl_AppendResult(interp, "sql error: ", sqlite3_errmsg(db), 0);
7081   return TCL_ERROR;
7082 }
7083 
7084 
7085 #ifdef SQLITE_USER_AUTHENTICATION
7086 #include "sqlite3userauth.h"
7087 /*
7088 ** tclcmd:  sqlite3_user_authenticate DB USERNAME PASSWORD
7089 */
7090 static int SQLITE_TCLAPI test_user_authenticate(
7091   ClientData clientData, /* Unused */
7092   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7093   int objc,              /* Number of arguments */
7094   Tcl_Obj *CONST objv[]  /* Command arguments */
7095 ){
7096   char *zUser = 0;
7097   char *zPasswd = 0;
7098   int nPasswd = 0;
7099   sqlite3 *db;
7100   int rc;
7101 
7102   if( objc!=4 ){
7103     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD");
7104     return TCL_ERROR;
7105   }
7106   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7107     return TCL_ERROR;
7108   }
7109   zUser = Tcl_GetString(objv[2]);
7110   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7111   rc = sqlite3_user_authenticate(db, zUser, zPasswd, nPasswd);
7112   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7113   return TCL_OK;
7114 }
7115 #endif /* SQLITE_USER_AUTHENTICATION */
7116 
7117 #ifdef SQLITE_USER_AUTHENTICATION
7118 /*
7119 ** tclcmd:  sqlite3_user_add DB USERNAME PASSWORD ISADMIN
7120 */
7121 static int SQLITE_TCLAPI test_user_add(
7122   ClientData clientData, /* Unused */
7123   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7124   int objc,              /* Number of arguments */
7125   Tcl_Obj *CONST objv[]  /* Command arguments */
7126 ){
7127   char *zUser = 0;
7128   char *zPasswd = 0;
7129   int nPasswd = 0;
7130   int isAdmin = 0;
7131   sqlite3 *db;
7132   int rc;
7133 
7134   if( objc!=5 ){
7135     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
7136     return TCL_ERROR;
7137   }
7138   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7139     return TCL_ERROR;
7140   }
7141   zUser = Tcl_GetString(objv[2]);
7142   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7143   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
7144   rc = sqlite3_user_add(db, zUser, zPasswd, nPasswd, isAdmin);
7145   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7146   return TCL_OK;
7147 }
7148 #endif /* SQLITE_USER_AUTHENTICATION */
7149 
7150 #ifdef SQLITE_USER_AUTHENTICATION
7151 /*
7152 ** tclcmd:  sqlite3_user_change DB USERNAME PASSWORD ISADMIN
7153 */
7154 static int SQLITE_TCLAPI test_user_change(
7155   ClientData clientData, /* Unused */
7156   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7157   int objc,              /* Number of arguments */
7158   Tcl_Obj *CONST objv[]  /* Command arguments */
7159 ){
7160   char *zUser = 0;
7161   char *zPasswd = 0;
7162   int nPasswd = 0;
7163   int isAdmin = 0;
7164   sqlite3 *db;
7165   int rc;
7166 
7167   if( objc!=5 ){
7168     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
7169     return TCL_ERROR;
7170   }
7171   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7172     return TCL_ERROR;
7173   }
7174   zUser = Tcl_GetString(objv[2]);
7175   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7176   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
7177   rc = sqlite3_user_change(db, zUser, zPasswd, nPasswd, isAdmin);
7178   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7179   return TCL_OK;
7180 }
7181 #endif /* SQLITE_USER_AUTHENTICATION */
7182 
7183 #ifdef SQLITE_USER_AUTHENTICATION
7184 /*
7185 ** tclcmd:  sqlite3_user_delete DB USERNAME
7186 */
7187 static int SQLITE_TCLAPI test_user_delete(
7188   ClientData clientData, /* Unused */
7189   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7190   int objc,              /* Number of arguments */
7191   Tcl_Obj *CONST objv[]  /* Command arguments */
7192 ){
7193   char *zUser = 0;
7194   sqlite3 *db;
7195   int rc;
7196 
7197   if( objc!=3 ){
7198     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME");
7199     return TCL_ERROR;
7200   }
7201   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7202     return TCL_ERROR;
7203   }
7204   zUser = Tcl_GetString(objv[2]);
7205   rc = sqlite3_user_delete(db, zUser);
7206   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7207   return TCL_OK;
7208 }
7209 #endif /* SQLITE_USER_AUTHENTICATION */
7210 
7211 /*
7212 ** tclcmd: bad_behavior TYPE
7213 **
7214 ** Do some things that should trigger a valgrind or -fsanitize=undefined
7215 ** warning.  This is used to verify that errors and warnings output by those
7216 ** tools are detected by the test scripts.
7217 **
7218 **       TYPE       BEHAVIOR
7219 **       1          Overflow a signed integer
7220 **       2          Jump based on an uninitialized variable
7221 **       3          Read after free
7222 **       4          Panic
7223 */
7224 static int SQLITE_TCLAPI test_bad_behavior(
7225   ClientData clientData, /* Pointer to an integer containing zero */
7226   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7227   int objc,              /* Number of arguments */
7228   Tcl_Obj *CONST objv[]  /* Command arguments */
7229 ){
7230   int iType;
7231   int xyz;
7232   int i = *(int*)clientData;
7233   int j;
7234   int w[10];
7235   int *a;
7236   if( objc!=2 ){
7237     Tcl_WrongNumArgs(interp, 1, objv, "TYPE");
7238     return TCL_ERROR;
7239   }
7240   if( Tcl_GetIntFromObj(interp, objv[1], &iType) ) return TCL_ERROR;
7241   switch( iType ){
7242     case 1: {
7243       xyz = 0x7fffff00 - i;
7244       xyz += 0x100;
7245       Tcl_SetObjResult(interp, Tcl_NewIntObj(xyz));
7246       break;
7247     }
7248     case 2: {
7249       w[1] = 5;
7250       if( w[i]>0 ) w[1]++;
7251       Tcl_SetObjResult(interp, Tcl_NewIntObj(w[1]));
7252       break;
7253     }
7254     case 3: {
7255       a = malloc( sizeof(int)*10 );
7256       for(j=0; j<10; j++) a[j] = j;
7257       free(a);
7258       Tcl_SetObjResult(interp, Tcl_NewIntObj(a[i]));
7259       break;
7260     }
7261     case 4: {
7262       Tcl_Panic("Deliberate panic");
7263       break;
7264     }
7265   }
7266   return TCL_OK;
7267 }
7268 
7269 /*
7270 ** tclcmd:   register_dbstat_vtab DB
7271 **
7272 ** Cause the dbstat virtual table to be available on the connection DB
7273 */
7274 static int SQLITE_TCLAPI test_register_dbstat_vtab(
7275   void *clientData,
7276   Tcl_Interp *interp,
7277   int objc,
7278   Tcl_Obj *CONST objv[]
7279 ){
7280 #ifdef SQLITE_OMIT_VIRTUALTABLE
7281   Tcl_AppendResult(interp, "dbstat not available because of "
7282                            "SQLITE_OMIT_VIRTUALTABLE", (void*)0);
7283   return TCL_ERROR;
7284 #else
7285   struct SqliteDb { sqlite3 *db; };
7286   char *zDb;
7287   Tcl_CmdInfo cmdInfo;
7288 
7289   if( objc!=2 ){
7290     Tcl_WrongNumArgs(interp, 1, objv, "DB");
7291     return TCL_ERROR;
7292   }
7293 
7294   zDb = Tcl_GetString(objv[1]);
7295   if( Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
7296     sqlite3* db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
7297     sqlite3DbstatRegister(db);
7298   }
7299   return TCL_OK;
7300 #endif /* SQLITE_OMIT_VIRTUALTABLE */
7301 }
7302 
7303 /*
7304 ** tclcmd:   sqlite3_db_config DB SETTING VALUE
7305 **
7306 ** Invoke sqlite3_db_config() for one of the setting values.
7307 */
7308 static int SQLITE_TCLAPI test_sqlite3_db_config(
7309   void *clientData,
7310   Tcl_Interp *interp,
7311   int objc,
7312   Tcl_Obj *CONST objv[]
7313 ){
7314   static const struct {
7315     const char *zName;
7316     int eVal;
7317   } aSetting[] = {
7318     { "FKEY",            SQLITE_DBCONFIG_ENABLE_FKEY },
7319     { "TRIGGER",         SQLITE_DBCONFIG_ENABLE_TRIGGER },
7320     { "FTS3_TOKENIZER",  SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
7321     { "LOAD_EXTENSION",  SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
7322     { "NO_CKPT_ON_CLOSE",SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE },
7323     { "QPSG",            SQLITE_DBCONFIG_ENABLE_QPSG },
7324   };
7325   int i;
7326   int v;
7327   const char *zSetting;
7328   sqlite3 *db;
7329 
7330   if( objc!=4 ){
7331     Tcl_WrongNumArgs(interp, 1, objv, "DB SETTING VALUE");
7332     return TCL_ERROR;
7333   }
7334   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7335   zSetting = Tcl_GetString(objv[2]);
7336   if( sqlite3_strglob("SQLITE_*", zSetting)==0 ) zSetting += 7;
7337   if( sqlite3_strglob("DBCONFIG_*", zSetting)==0 ) zSetting += 9;
7338   if( sqlite3_strglob("ENABLE_*", zSetting)==0 ) zSetting += 7;
7339   for(i=0; i<ArraySize(aSetting); i++){
7340     if( strcmp(zSetting, aSetting[i].zName)==0 ) break;
7341   }
7342   if( i>=ArraySize(aSetting) ){
7343     Tcl_SetObjResult(interp,
7344       Tcl_NewStringObj("unknown sqlite3_db_config setting", -1));
7345     return TCL_ERROR;
7346   }
7347   if( Tcl_GetIntFromObj(interp, objv[3], &v) ) return TCL_ERROR;
7348   sqlite3_db_config(db, aSetting[i].eVal, v, &v);
7349   Tcl_SetObjResult(interp, Tcl_NewIntObj(v));
7350   return TCL_OK;
7351 }
7352 
7353 /*
7354 ** Change the name of the main database schema from "main" to "icecube".
7355 */
7356 static int SQLITE_TCLAPI test_dbconfig_maindbname_icecube(
7357   void * clientData,
7358   Tcl_Interp *interp,
7359   int objc,
7360   Tcl_Obj *CONST objv[]
7361 ){
7362   int rc;
7363   sqlite3 *db;
7364   extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
7365   if( objc!=2 ){
7366     Tcl_WrongNumArgs(interp, 1, objv, "DB");
7367     return TCL_ERROR;
7368   }else{
7369     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7370     rc = sqlite3_db_config(db, SQLITE_DBCONFIG_MAINDBNAME, "icecube");
7371     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
7372     return TCL_OK;
7373   }
7374 }
7375 
7376 /*
7377 ** Register commands with the TCL interpreter.
7378 */
7379 int Sqlitetest1_Init(Tcl_Interp *interp){
7380   extern int sqlite3_search_count;
7381   extern int sqlite3_found_count;
7382   extern int sqlite3_interrupt_count;
7383   extern int sqlite3_open_file_count;
7384   extern int sqlite3_sort_count;
7385   extern int sqlite3_current_time;
7386 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
7387   extern int sqlite3_hostid_num;
7388 #endif
7389   extern int sqlite3_max_blobsize;
7390   extern int SQLITE_TCLAPI sqlite3BtreeSharedCacheReport(void*,
7391                                           Tcl_Interp*,int,Tcl_Obj*CONST*);
7392   static int iZero = 0;
7393   static struct {
7394      char *zName;
7395      Tcl_CmdProc *xProc;
7396   } aCmd[] = {
7397      { "db_enter",                      (Tcl_CmdProc*)db_enter               },
7398      { "db_leave",                      (Tcl_CmdProc*)db_leave               },
7399      { "sqlite3_mprintf_int",           (Tcl_CmdProc*)sqlite3_mprintf_int    },
7400      { "sqlite3_mprintf_int64",         (Tcl_CmdProc*)sqlite3_mprintf_int64  },
7401      { "sqlite3_mprintf_long",          (Tcl_CmdProc*)sqlite3_mprintf_long   },
7402      { "sqlite3_mprintf_str",           (Tcl_CmdProc*)sqlite3_mprintf_str    },
7403      { "sqlite3_snprintf_str",          (Tcl_CmdProc*)sqlite3_snprintf_str   },
7404      { "sqlite3_mprintf_stronly",       (Tcl_CmdProc*)sqlite3_mprintf_stronly},
7405      { "sqlite3_mprintf_double",        (Tcl_CmdProc*)sqlite3_mprintf_double },
7406      { "sqlite3_mprintf_scaled",        (Tcl_CmdProc*)sqlite3_mprintf_scaled },
7407      { "sqlite3_mprintf_hexdouble",   (Tcl_CmdProc*)sqlite3_mprintf_hexdouble},
7408      { "sqlite3_mprintf_z_test",        (Tcl_CmdProc*)test_mprintf_z        },
7409      { "sqlite3_mprintf_n_test",        (Tcl_CmdProc*)test_mprintf_n        },
7410      { "sqlite3_snprintf_int",          (Tcl_CmdProc*)test_snprintf_int     },
7411      { "sqlite3_last_insert_rowid",     (Tcl_CmdProc*)test_last_rowid       },
7412      { "sqlite3_exec_printf",           (Tcl_CmdProc*)test_exec_printf      },
7413      { "sqlite3_exec_hex",              (Tcl_CmdProc*)test_exec_hex         },
7414      { "sqlite3_exec",                  (Tcl_CmdProc*)test_exec             },
7415      { "sqlite3_exec_nr",               (Tcl_CmdProc*)test_exec_nr          },
7416 #ifndef SQLITE_OMIT_GET_TABLE
7417      { "sqlite3_get_table_printf",      (Tcl_CmdProc*)test_get_table_printf },
7418 #endif
7419      { "sqlite3_close",                 (Tcl_CmdProc*)sqlite_test_close     },
7420      { "sqlite3_close_v2",              (Tcl_CmdProc*)sqlite_test_close_v2  },
7421      { "sqlite3_create_function",       (Tcl_CmdProc*)test_create_function  },
7422      { "sqlite3_create_aggregate",      (Tcl_CmdProc*)test_create_aggregate },
7423      { "sqlite_register_test_function", (Tcl_CmdProc*)test_register_func    },
7424      { "sqlite_abort",                  (Tcl_CmdProc*)sqlite_abort          },
7425      { "sqlite_bind",                   (Tcl_CmdProc*)test_bind             },
7426      { "breakpoint",                    (Tcl_CmdProc*)test_breakpoint       },
7427      { "sqlite3_key",                   (Tcl_CmdProc*)test_key              },
7428      { "sqlite3_rekey",                 (Tcl_CmdProc*)test_rekey            },
7429      { "sqlite_set_magic",              (Tcl_CmdProc*)sqlite_set_magic      },
7430      { "sqlite3_interrupt",             (Tcl_CmdProc*)test_interrupt        },
7431      { "sqlite_delete_function",        (Tcl_CmdProc*)delete_function       },
7432      { "sqlite_delete_collation",       (Tcl_CmdProc*)delete_collation      },
7433      { "sqlite3_get_autocommit",        (Tcl_CmdProc*)get_autocommit        },
7434      { "sqlite3_busy_timeout",          (Tcl_CmdProc*)test_busy_timeout     },
7435      { "printf",                        (Tcl_CmdProc*)test_printf           },
7436      { "sqlite3IoTrace",              (Tcl_CmdProc*)test_io_trace         },
7437      { "clang_sanitize_address",        (Tcl_CmdProc*)clang_sanitize_address },
7438   };
7439   static struct {
7440      char *zName;
7441      Tcl_ObjCmdProc *xProc;
7442      void *clientData;
7443   } aObjCmd[] = {
7444      { "sqlite3_db_config",             test_sqlite3_db_config, 0 },
7445      { "bad_behavior",                  test_bad_behavior,  (void*)&iZero },
7446      { "register_dbstat_vtab",          test_register_dbstat_vtab  },
7447      { "sqlite3_connection_pointer",    get_sqlite_pointer, 0 },
7448      { "intarray_addr",                 test_intarray_addr, 0 },
7449      { "int64array_addr",               test_int64array_addr, 0 },
7450      { "doublearray_addr",              test_doublearray_addr, 0 },
7451      { "textarray_addr",                test_textarray_addr, 0 },
7452      { "sqlite3_bind_int",              test_bind_int,      0 },
7453      { "sqlite3_bind_zeroblob",         test_bind_zeroblob, 0 },
7454      { "sqlite3_bind_zeroblob64",       test_bind_zeroblob64, 0 },
7455      { "sqlite3_bind_int64",            test_bind_int64,    0 },
7456      { "sqlite3_bind_double",           test_bind_double,   0 },
7457      { "sqlite3_bind_null",             test_bind_null     ,0 },
7458      { "sqlite3_bind_text",             test_bind_text     ,0 },
7459      { "sqlite3_bind_text16",           test_bind_text16   ,0 },
7460      { "sqlite3_bind_blob",             test_bind_blob     ,0 },
7461      { "sqlite3_bind_parameter_count",  test_bind_parameter_count, 0},
7462      { "sqlite3_bind_parameter_name",   test_bind_parameter_name,  0},
7463      { "sqlite3_bind_parameter_index",  test_bind_parameter_index, 0},
7464      { "sqlite3_clear_bindings",        test_clear_bindings, 0},
7465      { "sqlite3_sleep",                 test_sleep,          0},
7466      { "sqlite3_errcode",               test_errcode       ,0 },
7467      { "sqlite3_extended_errcode",      test_ex_errcode    ,0 },
7468      { "sqlite3_errmsg",                test_errmsg        ,0 },
7469      { "sqlite3_errmsg16",              test_errmsg16      ,0 },
7470      { "sqlite3_open",                  test_open          ,0 },
7471      { "sqlite3_open16",                test_open16        ,0 },
7472      { "sqlite3_open_v2",               test_open_v2       ,0 },
7473      { "sqlite3_complete16",            test_complete16    ,0 },
7474 
7475      { "sqlite3_prepare",               test_prepare       ,0 },
7476      { "sqlite3_prepare16",             test_prepare16     ,0 },
7477      { "sqlite3_prepare_v2",            test_prepare_v2    ,0 },
7478      { "sqlite3_prepare_tkt3134",       test_prepare_tkt3134, 0},
7479      { "sqlite3_prepare16_v2",          test_prepare16_v2  ,0 },
7480      { "sqlite3_finalize",              test_finalize      ,0 },
7481      { "sqlite3_stmt_status",           test_stmt_status   ,0 },
7482      { "sqlite3_reset",                 test_reset         ,0 },
7483      { "sqlite3_expired",               test_expired       ,0 },
7484      { "sqlite3_transfer_bindings",     test_transfer_bind ,0 },
7485      { "sqlite3_changes",               test_changes       ,0 },
7486      { "sqlite3_step",                  test_step          ,0 },
7487      { "sqlite3_sql",                   test_sql           ,0 },
7488      { "sqlite3_expanded_sql",          test_ex_sql        ,0 },
7489      { "sqlite3_next_stmt",             test_next_stmt     ,0 },
7490      { "sqlite3_stmt_readonly",         test_stmt_readonly ,0 },
7491      { "sqlite3_stmt_busy",             test_stmt_busy     ,0 },
7492      { "uses_stmt_journal",             uses_stmt_journal ,0 },
7493 
7494      { "sqlite3_release_memory",        test_release_memory,     0},
7495      { "sqlite3_db_release_memory",     test_db_release_memory,  0},
7496      { "sqlite3_db_cacheflush",         test_db_cacheflush,      0},
7497      { "sqlite3_system_errno",          test_system_errno,       0},
7498      { "sqlite3_db_filename",           test_db_filename,        0},
7499      { "sqlite3_db_readonly",           test_db_readonly,        0},
7500      { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
7501      { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
7502      { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},
7503 
7504      { "sqlite3_load_extension",        test_load_extension,     0},
7505      { "sqlite3_enable_load_extension", test_enable_load,        0},
7506      { "sqlite3_extended_result_codes", test_extended_result_codes, 0},
7507      { "sqlite3_limit",                 test_limit,                 0},
7508      { "dbconfig_maindbname_icecube",   test_dbconfig_maindbname_icecube },
7509 
7510      { "save_prng_state",               save_prng_state,    0 },
7511      { "restore_prng_state",            restore_prng_state, 0 },
7512      { "reset_prng_state",              reset_prng_state,   0 },
7513      { "database_never_corrupt",        database_never_corrupt, 0},
7514      { "database_may_be_corrupt",       database_may_be_corrupt, 0},
7515      { "optimization_control",          optimization_control,0},
7516 #if SQLITE_OS_WIN
7517      { "lock_win32_file",               win32_file_lock,    0 },
7518      { "exists_win32_path",             win32_exists_path,  0 },
7519      { "find_win32_file",               win32_find_file,    0 },
7520      { "delete_win32_file",             win32_delete_file,  0 },
7521      { "make_win32_dir",                win32_mkdir,        0 },
7522      { "remove_win32_dir",              win32_rmdir,        0 },
7523 #endif
7524      { "tcl_objproc",                   runAsObjProc,       0 },
7525 
7526      /* sqlite3_column_*() API */
7527      { "sqlite3_column_count",          test_column_count  ,0 },
7528      { "sqlite3_data_count",            test_data_count    ,0 },
7529      { "sqlite3_column_type",           test_column_type   ,0 },
7530      { "sqlite3_column_blob",           test_column_blob   ,0 },
7531      { "sqlite3_column_double",         test_column_double ,0 },
7532      { "sqlite3_column_int64",          test_column_int64  ,0 },
7533      { "sqlite3_column_text",   test_stmt_utf8,  (void*)sqlite3_column_text },
7534      { "sqlite3_column_name",   test_stmt_utf8,  (void*)sqlite3_column_name },
7535      { "sqlite3_column_int",    test_stmt_int,   (void*)sqlite3_column_int  },
7536      { "sqlite3_column_bytes",  test_stmt_int,   (void*)sqlite3_column_bytes},
7537 #ifndef SQLITE_OMIT_DECLTYPE
7538      { "sqlite3_column_decltype",test_stmt_utf8,(void*)sqlite3_column_decltype},
7539 #endif
7540 #ifdef SQLITE_ENABLE_COLUMN_METADATA
7541 { "sqlite3_column_database_name",test_stmt_utf8,(void*)sqlite3_column_database_name},
7542 { "sqlite3_column_table_name",test_stmt_utf8,(void*)sqlite3_column_table_name},
7543 { "sqlite3_column_origin_name",test_stmt_utf8,(void*)sqlite3_column_origin_name},
7544 #endif
7545 
7546 #ifndef SQLITE_OMIT_UTF16
7547      { "sqlite3_column_bytes16", test_stmt_int, (void*)sqlite3_column_bytes16 },
7548      { "sqlite3_column_text16",  test_stmt_utf16, (void*)sqlite3_column_text16},
7549      { "sqlite3_column_name16",  test_stmt_utf16, (void*)sqlite3_column_name16},
7550      { "add_alignment_test_collations", add_alignment_test_collations, 0      },
7551 #ifndef SQLITE_OMIT_DECLTYPE
7552      { "sqlite3_column_decltype16",test_stmt_utf16,(void*)sqlite3_column_decltype16},
7553 #endif
7554 #ifdef SQLITE_ENABLE_COLUMN_METADATA
7555 {"sqlite3_column_database_name16",
7556   test_stmt_utf16, (void*)sqlite3_column_database_name16},
7557 {"sqlite3_column_table_name16", test_stmt_utf16, (void*)sqlite3_column_table_name16},
7558 {"sqlite3_column_origin_name16", test_stmt_utf16, (void*)sqlite3_column_origin_name16},
7559 #endif
7560 #endif
7561      { "sqlite3_create_collation_v2", test_create_collation_v2, 0 },
7562      { "sqlite3_global_recover",     test_global_recover, 0   },
7563      { "working_64bit_int",          working_64bit_int,   0   },
7564      { "vfs_unlink_test",            vfs_unlink_test,     0   },
7565      { "vfs_initfail_test",          vfs_initfail_test,   0   },
7566      { "vfs_unregister_all",         vfs_unregister_all,  0   },
7567      { "vfs_reregister_all",         vfs_reregister_all,  0   },
7568      { "file_control_test",          file_control_test,   0   },
7569      { "file_control_lasterrno_test", file_control_lasterrno_test,  0   },
7570      { "file_control_lockproxy_test", file_control_lockproxy_test,  0   },
7571      { "file_control_chunksize_test", file_control_chunksize_test,  0   },
7572      { "file_control_sizehint_test",  file_control_sizehint_test,   0   },
7573 #if SQLITE_OS_WIN
7574      { "file_control_win32_av_retry", file_control_win32_av_retry,  0   },
7575      { "file_control_win32_get_handle", file_control_win32_get_handle, 0  },
7576      { "file_control_win32_set_handle", file_control_win32_set_handle, 0  },
7577 #endif
7578      { "file_control_persist_wal",    file_control_persist_wal,     0   },
7579      { "file_control_powersafe_overwrite",file_control_powersafe_overwrite,0},
7580      { "file_control_vfsname",        file_control_vfsname,         0   },
7581      { "file_control_tempfilename",   file_control_tempfilename,    0   },
7582      { "sqlite3_vfs_list",           vfs_list,     0   },
7583      { "sqlite3_create_function_v2", test_create_function_v2, 0 },
7584 
7585      /* Functions from os.h */
7586 #ifndef SQLITE_OMIT_UTF16
7587      { "add_test_collate",        test_collate, 0            },
7588      { "add_test_collate_needed", test_collate_needed, 0     },
7589      { "add_test_function",       test_function, 0           },
7590      { "add_test_utf16bin_collate",    test_utf16bin_collate, 0        },
7591 #endif
7592      { "sqlite3_test_errstr",     test_errstr, 0             },
7593      { "tcl_variable_type",       tcl_variable_type, 0       },
7594 #ifndef SQLITE_OMIT_SHARED_CACHE
7595      { "sqlite3_enable_shared_cache", test_enable_shared, 0  },
7596      { "sqlite3_shared_cache_report", sqlite3BtreeSharedCacheReport, 0},
7597 #endif
7598      { "sqlite3_libversion_number", test_libversion_number, 0  },
7599      { "sqlite3_table_column_metadata", test_table_column_metadata, 0  },
7600 #ifndef SQLITE_OMIT_INCRBLOB
7601      { "sqlite3_blob_reopen", test_blob_reopen, 0  },
7602 #endif
7603      { "pcache_stats",       test_pcache_stats, 0  },
7604 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
7605      { "sqlite3_unlock_notify", test_unlock_notify, 0  },
7606 #endif
7607      { "sqlite3_wal_checkpoint",   test_wal_checkpoint, 0  },
7608      { "sqlite3_wal_checkpoint_v2",test_wal_checkpoint_v2, 0  },
7609      { "sqlite3_wal_autocheckpoint",test_wal_autocheckpoint, 0  },
7610      { "test_sqlite3_log",         test_sqlite3_log, 0  },
7611 #ifndef SQLITE_OMIT_EXPLAIN
7612      { "print_explain_query_plan", test_print_eqp, 0  },
7613 #endif
7614      { "sqlite3_test_control", test_test_control },
7615 #if SQLITE_OS_UNIX
7616      { "getrusage", test_getrusage },
7617 #endif
7618      { "load_static_extension", tclLoadStaticExtensionCmd },
7619      { "sorter_test_fakeheap", sorter_test_fakeheap },
7620      { "sorter_test_sort4_helper", sorter_test_sort4_helper },
7621 #ifdef SQLITE_USER_AUTHENTICATION
7622      { "sqlite3_user_authenticate", test_user_authenticate, 0 },
7623      { "sqlite3_user_add",          test_user_add,          0 },
7624      { "sqlite3_user_change",       test_user_change,       0 },
7625      { "sqlite3_user_delete",       test_user_delete,       0 },
7626 #endif
7627 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
7628      { "sqlite3_stmt_scanstatus",       test_stmt_scanstatus,   0 },
7629      { "sqlite3_stmt_scanstatus_reset", test_stmt_scanstatus_reset,   0 },
7630 #endif
7631 #ifdef SQLITE_ENABLE_SQLLOG
7632      { "sqlite3_config_sqllog",         test_config_sqllog,   0 },
7633 #endif
7634      { "vfs_current_time_int64",           vfsCurrentTimeInt64,   0 },
7635 #ifdef SQLITE_ENABLE_SNAPSHOT
7636      { "sqlite3_snapshot_get", test_snapshot_get, 0 },
7637      { "sqlite3_snapshot_open", test_snapshot_open, 0 },
7638      { "sqlite3_snapshot_free", test_snapshot_free, 0 },
7639      { "sqlite3_snapshot_cmp", test_snapshot_cmp, 0 },
7640      { "sqlite3_snapshot_recover", test_snapshot_recover, 0 },
7641      { "sqlite3_snapshot_get_blob", test_snapshot_get_blob, 0 },
7642      { "sqlite3_snapshot_open_blob", test_snapshot_open_blob, 0 },
7643      { "sqlite3_snapshot_cmp_blob", test_snapshot_cmp_blob, 0 },
7644 #endif
7645      { "sqlite3_delete_database", test_delete_database, 0 },
7646   };
7647   static int bitmask_size = sizeof(Bitmask)*8;
7648   static int longdouble_size = sizeof(LONGDOUBLE_TYPE);
7649   int i;
7650   extern int sqlite3_sync_count, sqlite3_fullsync_count;
7651   extern int sqlite3_opentemp_count;
7652   extern int sqlite3_like_count;
7653   extern int sqlite3_xferopt_count;
7654   extern int sqlite3_pager_readdb_count;
7655   extern int sqlite3_pager_writedb_count;
7656   extern int sqlite3_pager_writej_count;
7657 #if SQLITE_OS_WIN
7658   extern LONG volatile sqlite3_os_type;
7659 #endif
7660 #ifdef SQLITE_DEBUG
7661   extern int sqlite3WhereTrace;
7662   extern int sqlite3OSTrace;
7663   extern int sqlite3WalTrace;
7664 #endif
7665 #ifdef SQLITE_TEST
7666 #ifdef SQLITE_ENABLE_FTS3
7667   extern int sqlite3_fts3_enable_parentheses;
7668 #endif
7669 #endif
7670 
7671   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
7672     Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
7673   }
7674   for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
7675     Tcl_CreateObjCommand(interp, aObjCmd[i].zName,
7676         aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
7677   }
7678   Tcl_LinkVar(interp, "sqlite_search_count",
7679       (char*)&sqlite3_search_count, TCL_LINK_INT);
7680   Tcl_LinkVar(interp, "sqlite_found_count",
7681       (char*)&sqlite3_found_count, TCL_LINK_INT);
7682   Tcl_LinkVar(interp, "sqlite_sort_count",
7683       (char*)&sqlite3_sort_count, TCL_LINK_INT);
7684   Tcl_LinkVar(interp, "sqlite3_max_blobsize",
7685       (char*)&sqlite3_max_blobsize, TCL_LINK_INT);
7686   Tcl_LinkVar(interp, "sqlite_like_count",
7687       (char*)&sqlite3_like_count, TCL_LINK_INT);
7688   Tcl_LinkVar(interp, "sqlite_interrupt_count",
7689       (char*)&sqlite3_interrupt_count, TCL_LINK_INT);
7690   Tcl_LinkVar(interp, "sqlite_open_file_count",
7691       (char*)&sqlite3_open_file_count, TCL_LINK_INT);
7692   Tcl_LinkVar(interp, "sqlite_current_time",
7693       (char*)&sqlite3_current_time, TCL_LINK_INT);
7694 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
7695   Tcl_LinkVar(interp, "sqlite_hostid_num",
7696       (char*)&sqlite3_hostid_num, TCL_LINK_INT);
7697 #endif
7698   Tcl_LinkVar(interp, "sqlite3_xferopt_count",
7699       (char*)&sqlite3_xferopt_count, TCL_LINK_INT);
7700   Tcl_LinkVar(interp, "sqlite3_pager_readdb_count",
7701       (char*)&sqlite3_pager_readdb_count, TCL_LINK_INT);
7702   Tcl_LinkVar(interp, "sqlite3_pager_writedb_count",
7703       (char*)&sqlite3_pager_writedb_count, TCL_LINK_INT);
7704   Tcl_LinkVar(interp, "sqlite3_pager_writej_count",
7705       (char*)&sqlite3_pager_writej_count, TCL_LINK_INT);
7706 #ifndef SQLITE_OMIT_UTF16
7707   Tcl_LinkVar(interp, "unaligned_string_counter",
7708       (char*)&unaligned_string_counter, TCL_LINK_INT);
7709 #endif
7710 #ifndef SQLITE_OMIT_UTF16
7711   Tcl_LinkVar(interp, "sqlite_last_needed_collation",
7712       (char*)&pzNeededCollation, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
7713 #endif
7714 #if SQLITE_OS_WIN
7715   Tcl_LinkVar(interp, "sqlite_os_type",
7716       (char*)&sqlite3_os_type, TCL_LINK_LONG);
7717 #endif
7718 #ifdef SQLITE_TEST
7719   {
7720     static const char *query_plan = "*** OBSOLETE VARIABLE ***";
7721     Tcl_LinkVar(interp, "sqlite_query_plan",
7722        (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
7723   }
7724 #endif
7725 #ifdef SQLITE_DEBUG
7726   Tcl_LinkVar(interp, "sqlite_where_trace",
7727       (char*)&sqlite3WhereTrace, TCL_LINK_INT);
7728   Tcl_LinkVar(interp, "sqlite_os_trace",
7729       (char*)&sqlite3OSTrace, TCL_LINK_INT);
7730 #ifndef SQLITE_OMIT_WAL
7731   Tcl_LinkVar(interp, "sqlite_wal_trace",
7732       (char*)&sqlite3WalTrace, TCL_LINK_INT);
7733 #endif
7734 #endif
7735 #ifndef SQLITE_OMIT_DISKIO
7736   Tcl_LinkVar(interp, "sqlite_opentemp_count",
7737       (char*)&sqlite3_opentemp_count, TCL_LINK_INT);
7738 #endif
7739   Tcl_LinkVar(interp, "sqlite_static_bind_value",
7740       (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
7741   Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
7742       (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);
7743   Tcl_LinkVar(interp, "sqlite_temp_directory",
7744       (char*)&sqlite3_temp_directory, TCL_LINK_STRING);
7745   Tcl_LinkVar(interp, "sqlite_data_directory",
7746       (char*)&sqlite3_data_directory, TCL_LINK_STRING);
7747   Tcl_LinkVar(interp, "bitmask_size",
7748       (char*)&bitmask_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
7749   Tcl_LinkVar(interp, "longdouble_size",
7750       (char*)&longdouble_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
7751   Tcl_LinkVar(interp, "sqlite_sync_count",
7752       (char*)&sqlite3_sync_count, TCL_LINK_INT);
7753   Tcl_LinkVar(interp, "sqlite_fullsync_count",
7754       (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
7755 #if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
7756   Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
7757       (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
7758 #endif
7759   return TCL_OK;
7760 }
7761