xref: /sqlite-3.40.0/src/test1.c (revision c5e56b34)
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   };
2143   if( objc!=4 ){
2144     Tcl_WrongNumArgs(interp, 1, objv, "STMT PARAMETER RESETFLAG");
2145     return TCL_ERROR;
2146   }
2147   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2148   zOpName = Tcl_GetString(objv[2]);
2149   for(i=0; i<ArraySize(aOp); i++){
2150     if( strcmp(aOp[i].zName, zOpName)==0 ){
2151       op = aOp[i].op;
2152       break;
2153     }
2154   }
2155   if( i>=ArraySize(aOp) ){
2156     if( Tcl_GetIntFromObj(interp, objv[2], &op) ) return TCL_ERROR;
2157   }
2158   if( Tcl_GetBooleanFromObj(interp, objv[3], &resetFlag) ) return TCL_ERROR;
2159   iValue = sqlite3_stmt_status(pStmt, op, resetFlag);
2160   Tcl_SetObjResult(interp, Tcl_NewIntObj(iValue));
2161   return TCL_OK;
2162 }
2163 
2164 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
2165 /*
2166 ** Usage:  sqlite3_stmt_scanstatus STMT IDX
2167 */
2168 static int SQLITE_TCLAPI test_stmt_scanstatus(
2169   void * clientData,
2170   Tcl_Interp *interp,
2171   int objc,
2172   Tcl_Obj *CONST objv[]
2173 ){
2174   sqlite3_stmt *pStmt;            /* First argument */
2175   int idx;                        /* Second argument */
2176 
2177   const char *zName;
2178   const char *zExplain;
2179   sqlite3_int64 nLoop;
2180   sqlite3_int64 nVisit;
2181   double rEst;
2182   int res;
2183 
2184   if( objc!=3 ){
2185     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX");
2186     return TCL_ERROR;
2187   }
2188   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2189   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2190 
2191   res = sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NLOOP, (void*)&nLoop);
2192   if( res==0 ){
2193     Tcl_Obj *pRet = Tcl_NewObj();
2194     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nLoop", -1));
2195     Tcl_ListObjAppendElement(0, pRet, Tcl_NewWideIntObj(nLoop));
2196     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NVISIT, (void*)&nVisit);
2197     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nVisit", -1));
2198     Tcl_ListObjAppendElement(0, pRet, Tcl_NewWideIntObj(nVisit));
2199     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_EST, (void*)&rEst);
2200     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nEst", -1));
2201     Tcl_ListObjAppendElement(0, pRet, Tcl_NewDoubleObj(rEst));
2202     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NAME, (void*)&zName);
2203     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("zName", -1));
2204     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zName, -1));
2205     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_EXPLAIN, (void*)&zExplain);
2206     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("zExplain", -1));
2207     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zExplain, -1));
2208     Tcl_SetObjResult(interp, pRet);
2209   }else{
2210     Tcl_ResetResult(interp);
2211   }
2212   return TCL_OK;
2213 }
2214 
2215 /*
2216 ** Usage:  sqlite3_stmt_scanstatus_reset  STMT
2217 */
2218 static int SQLITE_TCLAPI test_stmt_scanstatus_reset(
2219   void * clientData,
2220   Tcl_Interp *interp,
2221   int objc,
2222   Tcl_Obj *CONST objv[]
2223 ){
2224   sqlite3_stmt *pStmt;            /* First argument */
2225   if( objc!=2 ){
2226     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
2227     return TCL_ERROR;
2228   }
2229   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2230   sqlite3_stmt_scanstatus_reset(pStmt);
2231   return TCL_OK;
2232 }
2233 #endif
2234 
2235 #ifdef SQLITE_ENABLE_SQLLOG
2236 /*
2237 ** Usage:  sqlite3_config_sqllog
2238 **
2239 ** Zero the SQLITE_CONFIG_SQLLOG configuration
2240 */
2241 static int SQLITE_TCLAPI test_config_sqllog(
2242   void * clientData,
2243   Tcl_Interp *interp,
2244   int objc,
2245   Tcl_Obj *CONST objv[]
2246 ){
2247   if( objc!=1 ){
2248     Tcl_WrongNumArgs(interp, 1, objv, "");
2249     return TCL_ERROR;
2250   }
2251   sqlite3_config(SQLITE_CONFIG_SQLLOG, 0, 0);
2252   return TCL_OK;
2253 }
2254 #endif
2255 
2256 /*
2257 ** Usage: vfs_current_time_int64
2258 **
2259 ** Return the value returned by the default VFS's xCurrentTimeInt64 method.
2260 */
2261 static int SQLITE_TCLAPI vfsCurrentTimeInt64(
2262   void * clientData,
2263   Tcl_Interp *interp,
2264   int objc,
2265   Tcl_Obj *CONST objv[]
2266 ){
2267   i64 t;
2268   sqlite3_vfs *pVfs = sqlite3_vfs_find(0);
2269   if( objc!=1 ){
2270     Tcl_WrongNumArgs(interp, 1, objv, "");
2271     return TCL_ERROR;
2272   }
2273   pVfs->xCurrentTimeInt64(pVfs, &t);
2274   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(t));
2275   return TCL_OK;
2276 }
2277 
2278 #ifdef SQLITE_ENABLE_SNAPSHOT
2279 /*
2280 ** Usage: sqlite3_snapshot_get DB DBNAME
2281 */
2282 static int SQLITE_TCLAPI test_snapshot_get(
2283   void * clientData,
2284   Tcl_Interp *interp,
2285   int objc,
2286   Tcl_Obj *CONST objv[]
2287 ){
2288   int rc;
2289   sqlite3 *db;
2290   char *zName;
2291   sqlite3_snapshot *pSnapshot = 0;
2292 
2293   if( objc!=3 ){
2294     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2295     return TCL_ERROR;
2296   }
2297   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2298   zName = Tcl_GetString(objv[2]);
2299 
2300   rc = sqlite3_snapshot_get(db, zName, &pSnapshot);
2301   if( rc!=SQLITE_OK ){
2302     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2303     return TCL_ERROR;
2304   }else{
2305     char zBuf[100];
2306     if( sqlite3TestMakePointerStr(interp, zBuf, pSnapshot) ) return TCL_ERROR;
2307     Tcl_SetObjResult(interp, Tcl_NewStringObj(zBuf, -1));
2308   }
2309   return TCL_OK;
2310 }
2311 #endif /* SQLITE_ENABLE_SNAPSHOT */
2312 
2313 #ifdef SQLITE_ENABLE_SNAPSHOT
2314 /*
2315 ** Usage: sqlite3_snapshot_recover DB DBNAME
2316 */
2317 static int SQLITE_TCLAPI test_snapshot_recover(
2318   void * clientData,
2319   Tcl_Interp *interp,
2320   int objc,
2321   Tcl_Obj *CONST objv[]
2322 ){
2323   int rc;
2324   sqlite3 *db;
2325   char *zName;
2326 
2327   if( objc!=3 ){
2328     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2329     return TCL_ERROR;
2330   }
2331   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2332   zName = Tcl_GetString(objv[2]);
2333 
2334   rc = sqlite3_snapshot_recover(db, zName);
2335   if( rc!=SQLITE_OK ){
2336     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2337     return TCL_ERROR;
2338   }else{
2339     Tcl_ResetResult(interp);
2340   }
2341   return TCL_OK;
2342 }
2343 #endif /* SQLITE_ENABLE_SNAPSHOT */
2344 
2345 #ifdef SQLITE_ENABLE_SNAPSHOT
2346 /*
2347 ** Usage: sqlite3_snapshot_open DB DBNAME SNAPSHOT
2348 */
2349 static int SQLITE_TCLAPI test_snapshot_open(
2350   void * clientData,
2351   Tcl_Interp *interp,
2352   int objc,
2353   Tcl_Obj *CONST objv[]
2354 ){
2355   int rc;
2356   sqlite3 *db;
2357   char *zName;
2358   sqlite3_snapshot *pSnapshot;
2359 
2360   if( objc!=4 ){
2361     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SNAPSHOT");
2362     return TCL_ERROR;
2363   }
2364   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2365   zName = Tcl_GetString(objv[2]);
2366   pSnapshot = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[3]));
2367 
2368   rc = sqlite3_snapshot_open(db, zName, pSnapshot);
2369   if( rc!=SQLITE_OK ){
2370     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2371     return TCL_ERROR;
2372   }
2373   return TCL_OK;
2374 }
2375 #endif /* SQLITE_ENABLE_SNAPSHOT */
2376 
2377 #ifdef SQLITE_ENABLE_SNAPSHOT
2378 /*
2379 ** Usage: sqlite3_snapshot_free SNAPSHOT
2380 */
2381 static int SQLITE_TCLAPI test_snapshot_free(
2382   void * clientData,
2383   Tcl_Interp *interp,
2384   int objc,
2385   Tcl_Obj *CONST objv[]
2386 ){
2387   sqlite3_snapshot *pSnapshot;
2388   if( objc!=2 ){
2389     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT");
2390     return TCL_ERROR;
2391   }
2392   pSnapshot = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[1]));
2393   sqlite3_snapshot_free(pSnapshot);
2394   return TCL_OK;
2395 }
2396 #endif /* SQLITE_ENABLE_SNAPSHOT */
2397 
2398 #ifdef SQLITE_ENABLE_SNAPSHOT
2399 /*
2400 ** Usage: sqlite3_snapshot_cmp SNAPSHOT1 SNAPSHOT2
2401 */
2402 static int SQLITE_TCLAPI test_snapshot_cmp(
2403   void * clientData,
2404   Tcl_Interp *interp,
2405   int objc,
2406   Tcl_Obj *CONST objv[]
2407 ){
2408   int res;
2409   sqlite3_snapshot *p1;
2410   sqlite3_snapshot *p2;
2411   if( objc!=3 ){
2412     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT1 SNAPSHOT2");
2413     return TCL_ERROR;
2414   }
2415   p1 = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[1]));
2416   p2 = (sqlite3_snapshot*)sqlite3TestTextToPtr(Tcl_GetString(objv[2]));
2417   res = sqlite3_snapshot_cmp(p1, p2);
2418   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
2419   return TCL_OK;
2420 }
2421 #endif /* SQLITE_ENABLE_SNAPSHOT */
2422 
2423 #ifdef SQLITE_ENABLE_SNAPSHOT
2424 /*
2425 ** Usage: sqlite3_snapshot_get_blob DB DBNAME
2426 */
2427 static int SQLITE_TCLAPI test_snapshot_get_blob(
2428   void * clientData,
2429   Tcl_Interp *interp,
2430   int objc,
2431   Tcl_Obj *CONST objv[]
2432 ){
2433   int rc;
2434   sqlite3 *db;
2435   char *zName;
2436   sqlite3_snapshot *pSnapshot = 0;
2437 
2438   if( objc!=3 ){
2439     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
2440     return TCL_ERROR;
2441   }
2442   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2443   zName = Tcl_GetString(objv[2]);
2444 
2445   rc = sqlite3_snapshot_get(db, zName, &pSnapshot);
2446   if( rc!=SQLITE_OK ){
2447     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2448     return TCL_ERROR;
2449   }else{
2450     Tcl_SetObjResult(interp,
2451         Tcl_NewByteArrayObj((unsigned char*)pSnapshot, sizeof(sqlite3_snapshot))
2452     );
2453     sqlite3_snapshot_free(pSnapshot);
2454   }
2455   return TCL_OK;
2456 }
2457 #endif /* SQLITE_ENABLE_SNAPSHOT */
2458 
2459 #ifdef SQLITE_ENABLE_SNAPSHOT
2460   /*
2461   ** Usage: sqlite3_snapshot_open_blob DB DBNAME SNAPSHOT
2462 */
2463 static int SQLITE_TCLAPI test_snapshot_open_blob(
2464   void * clientData,
2465   Tcl_Interp *interp,
2466   int objc,
2467   Tcl_Obj *CONST objv[]
2468 ){
2469   int rc;
2470   sqlite3 *db;
2471   char *zName;
2472   unsigned char *pBlob;
2473   int nBlob;
2474 
2475   if( objc!=4 ){
2476     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SNAPSHOT");
2477     return TCL_ERROR;
2478   }
2479   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2480   zName = Tcl_GetString(objv[2]);
2481   pBlob = Tcl_GetByteArrayFromObj(objv[3], &nBlob);
2482   if( nBlob!=sizeof(sqlite3_snapshot) ){
2483     Tcl_AppendResult(interp, "bad SNAPSHOT", 0);
2484     return TCL_ERROR;
2485   }
2486   rc = sqlite3_snapshot_open(db, zName, (sqlite3_snapshot*)pBlob);
2487   if( rc!=SQLITE_OK ){
2488     Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2489     return TCL_ERROR;
2490   }
2491   return TCL_OK;
2492 }
2493 #endif /* SQLITE_ENABLE_SNAPSHOT */
2494 
2495 #ifdef SQLITE_ENABLE_SNAPSHOT
2496 /*
2497 ** Usage: sqlite3_snapshot_cmp_blob SNAPSHOT1 SNAPSHOT2
2498 */
2499 static int SQLITE_TCLAPI test_snapshot_cmp_blob(
2500   void * clientData,
2501   Tcl_Interp *interp,
2502   int objc,
2503   Tcl_Obj *CONST objv[]
2504 ){
2505   int res;
2506   unsigned char *p1;
2507   unsigned char *p2;
2508   int n1;
2509   int n2;
2510 
2511   if( objc!=3 ){
2512     Tcl_WrongNumArgs(interp, 1, objv, "SNAPSHOT1 SNAPSHOT2");
2513     return TCL_ERROR;
2514   }
2515 
2516   p1 = Tcl_GetByteArrayFromObj(objv[1], &n1);
2517   p2 = Tcl_GetByteArrayFromObj(objv[2], &n2);
2518 
2519   if( n1!=sizeof(sqlite3_snapshot) || n1!=n2 ){
2520     Tcl_AppendResult(interp, "bad SNAPSHOT", 0);
2521     return TCL_ERROR;
2522   }
2523 
2524   res = sqlite3_snapshot_cmp((sqlite3_snapshot*)p1, (sqlite3_snapshot*)p2);
2525   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
2526   return TCL_OK;
2527 }
2528 #endif /* SQLITE_ENABLE_SNAPSHOT */
2529 
2530 /*
2531 ** Usage: sqlite3_delete_database FILENAME
2532 */
2533 int sqlite3_delete_database(const char*);   /* in test_delete.c */
2534 static int SQLITE_TCLAPI test_delete_database(
2535   void * clientData,
2536   Tcl_Interp *interp,
2537   int objc,
2538   Tcl_Obj *CONST objv[]
2539 ){
2540   int rc;
2541   const char *zFile;
2542   if( objc!=2 ){
2543     Tcl_WrongNumArgs(interp, 1, objv, "FILE");
2544     return TCL_ERROR;
2545   }
2546   zFile = (const char*)Tcl_GetString(objv[1]);
2547   rc = sqlite3_delete_database(zFile);
2548 
2549   Tcl_SetObjResult(interp, Tcl_NewStringObj(sqlite3ErrName(rc), -1));
2550   return TCL_OK;
2551 }
2552 
2553 /*
2554 ** Usage:  sqlite3_next_stmt  DB  STMT
2555 **
2556 ** Return the next statment in sequence after STMT.
2557 */
2558 static int SQLITE_TCLAPI test_next_stmt(
2559   void * clientData,
2560   Tcl_Interp *interp,
2561   int objc,
2562   Tcl_Obj *CONST objv[]
2563 ){
2564   sqlite3_stmt *pStmt;
2565   sqlite3 *db = 0;
2566   char zBuf[50];
2567 
2568   if( objc!=3 ){
2569     Tcl_AppendResult(interp, "wrong # args: should be \"",
2570         Tcl_GetStringFromObj(objv[0], 0), " DB STMT", 0);
2571     return TCL_ERROR;
2572   }
2573 
2574   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2575   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt) ) return TCL_ERROR;
2576   pStmt = sqlite3_next_stmt(db, pStmt);
2577   if( pStmt ){
2578     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
2579     Tcl_AppendResult(interp, zBuf, 0);
2580   }
2581   return TCL_OK;
2582 }
2583 
2584 /*
2585 ** Usage:  sqlite3_stmt_readonly  STMT
2586 **
2587 ** Return true if STMT is a NULL pointer or a pointer to a statement
2588 ** that is guaranteed to leave the database unmodified.
2589 */
2590 static int SQLITE_TCLAPI test_stmt_readonly(
2591   void * clientData,
2592   Tcl_Interp *interp,
2593   int objc,
2594   Tcl_Obj *CONST objv[]
2595 ){
2596   sqlite3_stmt *pStmt;
2597   int rc;
2598 
2599   if( objc!=2 ){
2600     Tcl_AppendResult(interp, "wrong # args: should be \"",
2601         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2602     return TCL_ERROR;
2603   }
2604 
2605   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2606   rc = sqlite3_stmt_readonly(pStmt);
2607   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2608   return TCL_OK;
2609 }
2610 
2611 /*
2612 ** Usage:  sqlite3_stmt_busy  STMT
2613 **
2614 ** Return true if STMT is a non-NULL pointer to a statement
2615 ** that has been stepped but not to completion.
2616 */
2617 static int SQLITE_TCLAPI test_stmt_busy(
2618   void * clientData,
2619   Tcl_Interp *interp,
2620   int objc,
2621   Tcl_Obj *CONST objv[]
2622 ){
2623   sqlite3_stmt *pStmt;
2624   int rc;
2625 
2626   if( objc!=2 ){
2627     Tcl_AppendResult(interp, "wrong # args: should be \"",
2628         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2629     return TCL_ERROR;
2630   }
2631 
2632   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2633   rc = sqlite3_stmt_busy(pStmt);
2634   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2635   return TCL_OK;
2636 }
2637 
2638 /*
2639 ** Usage:  uses_stmt_journal  STMT
2640 **
2641 ** Return true if STMT uses a statement journal.
2642 */
2643 static int SQLITE_TCLAPI uses_stmt_journal(
2644   void * clientData,
2645   Tcl_Interp *interp,
2646   int objc,
2647   Tcl_Obj *CONST objv[]
2648 ){
2649   sqlite3_stmt *pStmt;
2650 
2651   if( objc!=2 ){
2652     Tcl_AppendResult(interp, "wrong # args: should be \"",
2653         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2654     return TCL_ERROR;
2655   }
2656 
2657   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2658   sqlite3_stmt_readonly(pStmt);
2659   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(((Vdbe *)pStmt)->usesStmtJournal));
2660   return TCL_OK;
2661 }
2662 
2663 
2664 /*
2665 ** Usage:  sqlite3_reset  STMT
2666 **
2667 ** Reset a statement handle.
2668 */
2669 static int SQLITE_TCLAPI test_reset(
2670   void * clientData,
2671   Tcl_Interp *interp,
2672   int objc,
2673   Tcl_Obj *CONST objv[]
2674 ){
2675   sqlite3_stmt *pStmt;
2676   int rc;
2677 
2678   if( objc!=2 ){
2679     Tcl_AppendResult(interp, "wrong # args: should be \"",
2680         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2681     return TCL_ERROR;
2682   }
2683 
2684   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2685 
2686   rc = sqlite3_reset(pStmt);
2687   if( pStmt && sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ){
2688     return TCL_ERROR;
2689   }
2690   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2691 /*
2692   if( rc ){
2693     return TCL_ERROR;
2694   }
2695 */
2696   return TCL_OK;
2697 }
2698 
2699 /*
2700 ** Usage:  sqlite3_expired STMT
2701 **
2702 ** Return TRUE if a recompilation of the statement is recommended.
2703 */
2704 static int SQLITE_TCLAPI test_expired(
2705   void * clientData,
2706   Tcl_Interp *interp,
2707   int objc,
2708   Tcl_Obj *CONST objv[]
2709 ){
2710 #ifndef SQLITE_OMIT_DEPRECATED
2711   sqlite3_stmt *pStmt;
2712   if( objc!=2 ){
2713     Tcl_AppendResult(interp, "wrong # args: should be \"",
2714         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2715     return TCL_ERROR;
2716   }
2717   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2718   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(sqlite3_expired(pStmt)));
2719 #endif
2720   return TCL_OK;
2721 }
2722 
2723 /*
2724 ** Usage:  sqlite3_transfer_bindings FROMSTMT TOSTMT
2725 **
2726 ** Transfer all bindings from FROMSTMT over to TOSTMT
2727 */
2728 static int SQLITE_TCLAPI test_transfer_bind(
2729   void * clientData,
2730   Tcl_Interp *interp,
2731   int objc,
2732   Tcl_Obj *CONST objv[]
2733 ){
2734 #ifndef SQLITE_OMIT_DEPRECATED
2735   sqlite3_stmt *pStmt1, *pStmt2;
2736   if( objc!=3 ){
2737     Tcl_AppendResult(interp, "wrong # args: should be \"",
2738         Tcl_GetStringFromObj(objv[0], 0), " FROM-STMT TO-STMT", 0);
2739     return TCL_ERROR;
2740   }
2741   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt1)) return TCL_ERROR;
2742   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt2)) return TCL_ERROR;
2743   Tcl_SetObjResult(interp,
2744      Tcl_NewIntObj(sqlite3_transfer_bindings(pStmt1,pStmt2)));
2745 #endif
2746   return TCL_OK;
2747 }
2748 
2749 /*
2750 ** Usage:  sqlite3_changes DB
2751 **
2752 ** Return the number of changes made to the database by the last SQL
2753 ** execution.
2754 */
2755 static int SQLITE_TCLAPI test_changes(
2756   void * clientData,
2757   Tcl_Interp *interp,
2758   int objc,
2759   Tcl_Obj *CONST objv[]
2760 ){
2761   sqlite3 *db;
2762   if( objc!=2 ){
2763     Tcl_AppendResult(interp, "wrong # args: should be \"",
2764        Tcl_GetString(objv[0]), " DB", 0);
2765     return TCL_ERROR;
2766   }
2767   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2768   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_changes(db)));
2769   return TCL_OK;
2770 }
2771 
2772 /*
2773 ** This is the "static_bind_value" that variables are bound to when
2774 ** the FLAG option of sqlite3_bind is "static"
2775 */
2776 static char *sqlite_static_bind_value = 0;
2777 static int sqlite_static_bind_nbyte = 0;
2778 
2779 /*
2780 ** Usage:  sqlite3_bind  VM  IDX  VALUE  FLAGS
2781 **
2782 ** Sets the value of the IDX-th occurrence of "?" in the original SQL
2783 ** string.  VALUE is the new value.  If FLAGS=="null" then VALUE is
2784 ** ignored and the value is set to NULL.  If FLAGS=="static" then
2785 ** the value is set to the value of a static variable named
2786 ** "sqlite_static_bind_value".  If FLAGS=="normal" then a copy
2787 ** of the VALUE is made.  If FLAGS=="blob10" then a VALUE is ignored
2788 ** an a 10-byte blob "abc\000xyz\000pq" is inserted.
2789 */
2790 static int SQLITE_TCLAPI test_bind(
2791   void *NotUsed,
2792   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2793   int argc,              /* Number of arguments */
2794   char **argv            /* Text of each argument */
2795 ){
2796   sqlite3_stmt *pStmt;
2797   int rc;
2798   int idx;
2799   if( argc!=5 ){
2800     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2801        " VM IDX VALUE (null|static|normal)\"", 0);
2802     return TCL_ERROR;
2803   }
2804   if( getStmtPointer(interp, argv[1], &pStmt) ) return TCL_ERROR;
2805   if( Tcl_GetInt(interp, argv[2], &idx) ) return TCL_ERROR;
2806   if( strcmp(argv[4],"null")==0 ){
2807     rc = sqlite3_bind_null(pStmt, idx);
2808   }else if( strcmp(argv[4],"static")==0 ){
2809     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value, -1, 0);
2810   }else if( strcmp(argv[4],"static-nbytes")==0 ){
2811     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value,
2812                                        sqlite_static_bind_nbyte, 0);
2813   }else if( strcmp(argv[4],"normal")==0 ){
2814     rc = sqlite3_bind_text(pStmt, idx, argv[3], -1, SQLITE_TRANSIENT);
2815   }else if( strcmp(argv[4],"blob10")==0 ){
2816     rc = sqlite3_bind_text(pStmt, idx, "abc\000xyz\000pq", 10, SQLITE_STATIC);
2817   }else{
2818     Tcl_AppendResult(interp, "4th argument should be "
2819         "\"null\" or \"static\" or \"normal\"", 0);
2820     return TCL_ERROR;
2821   }
2822   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2823   if( rc ){
2824     char zBuf[50];
2825     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
2826     Tcl_AppendResult(interp, zBuf, sqlite3ErrStr(rc), 0);
2827     return TCL_ERROR;
2828   }
2829   return TCL_OK;
2830 }
2831 
2832 #ifndef SQLITE_OMIT_UTF16
2833 /*
2834 ** Usage: add_test_collate <db ptr> <utf8> <utf16le> <utf16be>
2835 **
2836 ** This function is used to test that SQLite selects the correct collation
2837 ** sequence callback when multiple versions (for different text encodings)
2838 ** are available.
2839 **
2840 ** Calling this routine registers the collation sequence "test_collate"
2841 ** with database handle <db>. The second argument must be a list of three
2842 ** boolean values. If the first is true, then a version of test_collate is
2843 ** registered for UTF-8, if the second is true, a version is registered for
2844 ** UTF-16le, if the third is true, a UTF-16be version is available.
2845 ** Previous versions of test_collate are deleted.
2846 **
2847 ** The collation sequence test_collate is implemented by calling the
2848 ** following TCL script:
2849 **
2850 **   "test_collate <enc> <lhs> <rhs>"
2851 **
2852 ** The <lhs> and <rhs> are the two values being compared, encoded in UTF-8.
2853 ** The <enc> parameter is the encoding of the collation function that
2854 ** SQLite selected to call. The TCL test script implements the
2855 ** "test_collate" proc.
2856 **
2857 ** Note that this will only work with one interpreter at a time, as the
2858 ** interp pointer to use when evaluating the TCL script is stored in
2859 ** pTestCollateInterp.
2860 */
2861 static Tcl_Interp* pTestCollateInterp;
2862 static int test_collate_func(
2863   void *pCtx,
2864   int nA, const void *zA,
2865   int nB, const void *zB
2866 ){
2867   Tcl_Interp *i = pTestCollateInterp;
2868   int encin = SQLITE_PTR_TO_INT(pCtx);
2869   int res;
2870   int n;
2871 
2872   sqlite3_value *pVal;
2873   Tcl_Obj *pX;
2874 
2875   pX = Tcl_NewStringObj("test_collate", -1);
2876   Tcl_IncrRefCount(pX);
2877 
2878   switch( encin ){
2879     case SQLITE_UTF8:
2880       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-8",-1));
2881       break;
2882     case SQLITE_UTF16LE:
2883       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16LE",-1));
2884       break;
2885     case SQLITE_UTF16BE:
2886       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16BE",-1));
2887       break;
2888     default:
2889       assert(0);
2890   }
2891 
2892   sqlite3BeginBenignMalloc();
2893   pVal = sqlite3ValueNew(0);
2894   if( pVal ){
2895     sqlite3ValueSetStr(pVal, nA, zA, encin, SQLITE_STATIC);
2896     n = sqlite3_value_bytes(pVal);
2897     Tcl_ListObjAppendElement(i,pX,
2898         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2899     sqlite3ValueSetStr(pVal, nB, zB, encin, SQLITE_STATIC);
2900     n = sqlite3_value_bytes(pVal);
2901     Tcl_ListObjAppendElement(i,pX,
2902         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2903     sqlite3ValueFree(pVal);
2904   }
2905   sqlite3EndBenignMalloc();
2906 
2907   Tcl_EvalObjEx(i, pX, 0);
2908   Tcl_DecrRefCount(pX);
2909   Tcl_GetIntFromObj(i, Tcl_GetObjResult(i), &res);
2910   return res;
2911 }
2912 static int SQLITE_TCLAPI test_collate(
2913   void * clientData,
2914   Tcl_Interp *interp,
2915   int objc,
2916   Tcl_Obj *CONST objv[]
2917 ){
2918   sqlite3 *db;
2919   int val;
2920   sqlite3_value *pVal;
2921   int rc;
2922 
2923   if( objc!=5 ) goto bad_args;
2924   pTestCollateInterp = interp;
2925   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2926 
2927   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2928   rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF8,
2929           (void *)SQLITE_UTF8, val?test_collate_func:0);
2930   if( rc==SQLITE_OK ){
2931     const void *zUtf16;
2932     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2933     rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF16LE,
2934             (void *)SQLITE_UTF16LE, val?test_collate_func:0);
2935     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
2936 
2937 #if 0
2938     if( sqlite3_iMallocFail>0 ){
2939       sqlite3_iMallocFail++;
2940     }
2941 #endif
2942     sqlite3_mutex_enter(db->mutex);
2943     pVal = sqlite3ValueNew(db);
2944     sqlite3ValueSetStr(pVal, -1, "test_collate", SQLITE_UTF8, SQLITE_STATIC);
2945     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
2946     if( db->mallocFailed ){
2947       rc = SQLITE_NOMEM;
2948     }else{
2949       rc = sqlite3_create_collation16(db, zUtf16, SQLITE_UTF16BE,
2950           (void *)SQLITE_UTF16BE, val?test_collate_func:0);
2951     }
2952     sqlite3ValueFree(pVal);
2953     sqlite3_mutex_leave(db->mutex);
2954   }
2955   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2956 
2957   if( rc!=SQLITE_OK ){
2958     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
2959     return TCL_ERROR;
2960   }
2961   return TCL_OK;
2962 
2963 bad_args:
2964   Tcl_AppendResult(interp, "wrong # args: should be \"",
2965       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
2966   return TCL_ERROR;
2967 }
2968 
2969 /*
2970 ** Usage: add_test_utf16bin_collate <db ptr>
2971 **
2972 ** Add a utf-16 collation sequence named "utf16bin" to the database
2973 ** handle. This collation sequence compares arguments in the same way as the
2974 ** built-in collation "binary".
2975 */
2976 static int test_utf16bin_collate_func(
2977   void *pCtx,
2978   int nA, const void *zA,
2979   int nB, const void *zB
2980 ){
2981   int nCmp = (nA>nB ? nB : nA);
2982   int res = memcmp(zA, zB, nCmp);
2983   if( res==0 ) res = nA - nB;
2984   return res;
2985 }
2986 static int SQLITE_TCLAPI test_utf16bin_collate(
2987   void * clientData,
2988   Tcl_Interp *interp,
2989   int objc,
2990   Tcl_Obj *CONST objv[]
2991 ){
2992   sqlite3 *db;
2993   int rc;
2994 
2995   if( objc!=2 ) goto bad_args;
2996   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2997 
2998   rc = sqlite3_create_collation(db, "utf16bin", SQLITE_UTF16, 0,
2999       test_utf16bin_collate_func
3000   );
3001   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3002   return TCL_OK;
3003 
3004 bad_args:
3005   Tcl_WrongNumArgs(interp, 1, objv, "DB");
3006   return TCL_ERROR;
3007 }
3008 
3009 /*
3010 ** When the collation needed callback is invoked, record the name of
3011 ** the requested collating function here.  The recorded name is linked
3012 ** to a TCL variable and used to make sure that the requested collation
3013 ** name is correct.
3014 */
3015 static char zNeededCollation[200];
3016 static char *pzNeededCollation = zNeededCollation;
3017 
3018 
3019 /*
3020 ** Called when a collating sequence is needed.  Registered using
3021 ** sqlite3_collation_needed16().
3022 */
3023 static void test_collate_needed_cb(
3024   void *pCtx,
3025   sqlite3 *db,
3026   int eTextRep,
3027   const void *pName
3028 ){
3029   int enc = ENC(db);
3030   int i;
3031   char *z;
3032   for(z = (char*)pName, i=0; *z || z[1]; z++){
3033     if( *z ) zNeededCollation[i++] = *z;
3034   }
3035   zNeededCollation[i] = 0;
3036   sqlite3_create_collation(
3037       db, "test_collate", ENC(db), SQLITE_INT_TO_PTR(enc), test_collate_func);
3038 }
3039 
3040 /*
3041 ** Usage: add_test_collate_needed DB
3042 */
3043 static int SQLITE_TCLAPI test_collate_needed(
3044   void * clientData,
3045   Tcl_Interp *interp,
3046   int objc,
3047   Tcl_Obj *CONST objv[]
3048 ){
3049   sqlite3 *db;
3050   int rc;
3051 
3052   if( objc!=2 ) goto bad_args;
3053   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3054   rc = sqlite3_collation_needed16(db, 0, test_collate_needed_cb);
3055   zNeededCollation[0] = 0;
3056   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3057   return TCL_OK;
3058 
3059 bad_args:
3060   Tcl_WrongNumArgs(interp, 1, objv, "DB");
3061   return TCL_ERROR;
3062 }
3063 
3064 /*
3065 ** tclcmd:   add_alignment_test_collations  DB
3066 **
3067 ** Add two new collating sequences to the database DB
3068 **
3069 **     utf16_aligned
3070 **     utf16_unaligned
3071 **
3072 ** Both collating sequences use the same sort order as BINARY.
3073 ** The only difference is that the utf16_aligned collating
3074 ** sequence is declared with the SQLITE_UTF16_ALIGNED flag.
3075 ** Both collating functions increment the unaligned utf16 counter
3076 ** whenever they see a string that begins on an odd byte boundary.
3077 */
3078 static int unaligned_string_counter = 0;
3079 static int alignmentCollFunc(
3080   void *NotUsed,
3081   int nKey1, const void *pKey1,
3082   int nKey2, const void *pKey2
3083 ){
3084   int rc, n;
3085   n = nKey1<nKey2 ? nKey1 : nKey2;
3086   if( nKey1>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey1))) ) unaligned_string_counter++;
3087   if( nKey2>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey2))) ) unaligned_string_counter++;
3088   rc = memcmp(pKey1, pKey2, n);
3089   if( rc==0 ){
3090     rc = nKey1 - nKey2;
3091   }
3092   return rc;
3093 }
3094 static int SQLITE_TCLAPI add_alignment_test_collations(
3095   void * clientData,
3096   Tcl_Interp *interp,
3097   int objc,
3098   Tcl_Obj *CONST objv[]
3099 ){
3100   sqlite3 *db;
3101   if( objc>=2 ){
3102     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3103     sqlite3_create_collation(db, "utf16_unaligned", SQLITE_UTF16,
3104         0, alignmentCollFunc);
3105     sqlite3_create_collation(db, "utf16_aligned", SQLITE_UTF16_ALIGNED,
3106         0, alignmentCollFunc);
3107   }
3108   return SQLITE_OK;
3109 }
3110 #endif /* !defined(SQLITE_OMIT_UTF16) */
3111 
3112 /*
3113 ** Usage: add_test_function <db ptr> <utf8> <utf16le> <utf16be>
3114 **
3115 ** This function is used to test that SQLite selects the correct user
3116 ** function callback when multiple versions (for different text encodings)
3117 ** are available.
3118 **
3119 ** Calling this routine registers up to three versions of the user function
3120 ** "test_function" with database handle <db>.  If the second argument is
3121 ** true, then a version of test_function is registered for UTF-8, if the
3122 ** third is true, a version is registered for UTF-16le, if the fourth is
3123 ** true, a UTF-16be version is available.  Previous versions of
3124 ** test_function are deleted.
3125 **
3126 ** The user function is implemented by calling the following TCL script:
3127 **
3128 **   "test_function <enc> <arg>"
3129 **
3130 ** Where <enc> is one of UTF-8, UTF-16LE or UTF16BE, and <arg> is the
3131 ** single argument passed to the SQL function. The value returned by
3132 ** the TCL script is used as the return value of the SQL function. It
3133 ** is passed to SQLite using UTF-16BE for a UTF-8 test_function(), UTF-8
3134 ** for a UTF-16LE test_function(), and UTF-16LE for an implementation that
3135 ** prefers UTF-16BE.
3136 */
3137 #ifndef SQLITE_OMIT_UTF16
3138 static void test_function_utf8(
3139   sqlite3_context *pCtx,
3140   int nArg,
3141   sqlite3_value **argv
3142 ){
3143   Tcl_Interp *interp;
3144   Tcl_Obj *pX;
3145   sqlite3_value *pVal;
3146   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3147   pX = Tcl_NewStringObj("test_function", -1);
3148   Tcl_IncrRefCount(pX);
3149   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-8", -1));
3150   Tcl_ListObjAppendElement(interp, pX,
3151       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3152   Tcl_EvalObjEx(interp, pX, 0);
3153   Tcl_DecrRefCount(pX);
3154   sqlite3_result_text(pCtx, Tcl_GetStringResult(interp), -1, SQLITE_TRANSIENT);
3155   pVal = sqlite3ValueNew(0);
3156   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3157       SQLITE_UTF8, SQLITE_STATIC);
3158   sqlite3_result_text16be(pCtx, sqlite3_value_text16be(pVal),
3159       -1, SQLITE_TRANSIENT);
3160   sqlite3ValueFree(pVal);
3161 }
3162 static void test_function_utf16le(
3163   sqlite3_context *pCtx,
3164   int nArg,
3165   sqlite3_value **argv
3166 ){
3167   Tcl_Interp *interp;
3168   Tcl_Obj *pX;
3169   sqlite3_value *pVal;
3170   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3171   pX = Tcl_NewStringObj("test_function", -1);
3172   Tcl_IncrRefCount(pX);
3173   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16LE", -1));
3174   Tcl_ListObjAppendElement(interp, pX,
3175       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3176   Tcl_EvalObjEx(interp, pX, 0);
3177   Tcl_DecrRefCount(pX);
3178   pVal = sqlite3ValueNew(0);
3179   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3180       SQLITE_UTF8, SQLITE_STATIC);
3181   sqlite3_result_text(pCtx,(char*)sqlite3_value_text(pVal),-1,SQLITE_TRANSIENT);
3182   sqlite3ValueFree(pVal);
3183 }
3184 static void test_function_utf16be(
3185   sqlite3_context *pCtx,
3186   int nArg,
3187   sqlite3_value **argv
3188 ){
3189   Tcl_Interp *interp;
3190   Tcl_Obj *pX;
3191   sqlite3_value *pVal;
3192   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
3193   pX = Tcl_NewStringObj("test_function", -1);
3194   Tcl_IncrRefCount(pX);
3195   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16BE", -1));
3196   Tcl_ListObjAppendElement(interp, pX,
3197       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
3198   Tcl_EvalObjEx(interp, pX, 0);
3199   Tcl_DecrRefCount(pX);
3200   pVal = sqlite3ValueNew(0);
3201   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
3202       SQLITE_UTF8, SQLITE_STATIC);
3203   sqlite3_result_text16(pCtx, sqlite3_value_text16le(pVal),
3204       -1, SQLITE_TRANSIENT);
3205   sqlite3_result_text16be(pCtx, sqlite3_value_text16le(pVal),
3206       -1, SQLITE_TRANSIENT);
3207   sqlite3_result_text16le(pCtx, sqlite3_value_text16le(pVal),
3208       -1, SQLITE_TRANSIENT);
3209   sqlite3ValueFree(pVal);
3210 }
3211 #endif /* SQLITE_OMIT_UTF16 */
3212 static int SQLITE_TCLAPI test_function(
3213   void * clientData,
3214   Tcl_Interp *interp,
3215   int objc,
3216   Tcl_Obj *CONST objv[]
3217 ){
3218 #ifndef SQLITE_OMIT_UTF16
3219   sqlite3 *db;
3220   int val;
3221 
3222   if( objc!=5 ) goto bad_args;
3223   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3224 
3225   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
3226   if( val ){
3227     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF8,
3228         interp, test_function_utf8, 0, 0);
3229   }
3230   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
3231   if( val ){
3232     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16LE,
3233         interp, test_function_utf16le, 0, 0);
3234   }
3235   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
3236   if( val ){
3237     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16BE,
3238         interp, test_function_utf16be, 0, 0);
3239   }
3240 
3241   return TCL_OK;
3242 bad_args:
3243   Tcl_AppendResult(interp, "wrong # args: should be \"",
3244       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
3245 #endif /* SQLITE_OMIT_UTF16 */
3246   return TCL_ERROR;
3247 }
3248 
3249 /*
3250 ** Usage:         sqlite3_test_errstr <err code>
3251 **
3252 ** Test that the english language string equivalents for sqlite error codes
3253 ** are sane. The parameter is an integer representing an sqlite error code.
3254 ** The result is a list of two elements, the string representation of the
3255 ** error code and the english language explanation.
3256 */
3257 static int SQLITE_TCLAPI test_errstr(
3258   void * clientData,
3259   Tcl_Interp *interp,
3260   int objc,
3261   Tcl_Obj *CONST objv[]
3262 ){
3263   char *zCode;
3264   int i;
3265   if( objc!=1 ){
3266     Tcl_WrongNumArgs(interp, 1, objv, "<error code>");
3267   }
3268 
3269   zCode = Tcl_GetString(objv[1]);
3270   for(i=0; i<200; i++){
3271     if( 0==strcmp(t1ErrorName(i), zCode) ) break;
3272   }
3273   Tcl_SetResult(interp, (char *)sqlite3ErrStr(i), 0);
3274   return TCL_OK;
3275 }
3276 
3277 /*
3278 ** Usage:    breakpoint
3279 **
3280 ** This routine exists for one purpose - to provide a place to put a
3281 ** breakpoint with GDB that can be triggered using TCL code.  The use
3282 ** for this is when a particular test fails on (say) the 1485th iteration.
3283 ** In the TCL test script, we can add code like this:
3284 **
3285 **     if {$i==1485} breakpoint
3286 **
3287 ** Then run testfixture in the debugger and wait for the breakpoint to
3288 ** fire.  Then additional breakpoints can be set to trace down the bug.
3289 */
3290 static int SQLITE_TCLAPI test_breakpoint(
3291   void *NotUsed,
3292   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
3293   int argc,              /* Number of arguments */
3294   char **argv            /* Text of each argument */
3295 ){
3296   return TCL_OK;         /* Do nothing */
3297 }
3298 
3299 /*
3300 ** Usage:   sqlite3_bind_zeroblob  STMT IDX N
3301 **
3302 ** Test the sqlite3_bind_zeroblob interface.  STMT is a prepared statement.
3303 ** IDX is the index of a wildcard in the prepared statement.  This command
3304 ** binds a N-byte zero-filled BLOB to the wildcard.
3305 */
3306 static int SQLITE_TCLAPI test_bind_zeroblob(
3307   void * clientData,
3308   Tcl_Interp *interp,
3309   int objc,
3310   Tcl_Obj *CONST objv[]
3311 ){
3312   sqlite3_stmt *pStmt;
3313   int idx;
3314   int n;
3315   int rc;
3316 
3317   if( objc!=4 ){
3318     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
3319     return TCL_ERROR;
3320   }
3321 
3322   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3323   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3324   if( Tcl_GetIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3325 
3326   rc = sqlite3_bind_zeroblob(pStmt, idx, n);
3327   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3328   if( rc!=SQLITE_OK ){
3329     return TCL_ERROR;
3330   }
3331 
3332   return TCL_OK;
3333 }
3334 
3335 /*
3336 ** Usage:   sqlite3_bind_zeroblob64  STMT IDX N
3337 **
3338 ** Test the sqlite3_bind_zeroblob64 interface.  STMT is a prepared statement.
3339 ** IDX is the index of a wildcard in the prepared statement.  This command
3340 ** binds a N-byte zero-filled BLOB to the wildcard.
3341 */
3342 static int SQLITE_TCLAPI test_bind_zeroblob64(
3343   void * clientData,
3344   Tcl_Interp *interp,
3345   int objc,
3346   Tcl_Obj *CONST objv[]
3347 ){
3348   sqlite3_stmt *pStmt;
3349   int idx;
3350   Tcl_WideInt n;
3351   int rc;
3352 
3353   if( objc!=4 ){
3354     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
3355     return TCL_ERROR;
3356   }
3357 
3358   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3359   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3360   if( Tcl_GetWideIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3361 
3362   rc = sqlite3_bind_zeroblob64(pStmt, idx, n);
3363   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3364   if( rc!=SQLITE_OK ){
3365     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3366     return TCL_ERROR;
3367   }
3368 
3369   return TCL_OK;
3370 }
3371 
3372 /*
3373 ** Usage:   sqlite3_bind_int  STMT N VALUE
3374 **
3375 ** Test the sqlite3_bind_int interface.  STMT is a prepared statement.
3376 ** N is the index of a wildcard in the prepared statement.  This command
3377 ** binds a 32-bit integer VALUE to that wildcard.
3378 */
3379 static int SQLITE_TCLAPI test_bind_int(
3380   void * clientData,
3381   Tcl_Interp *interp,
3382   int objc,
3383   Tcl_Obj *CONST objv[]
3384 ){
3385   sqlite3_stmt *pStmt;
3386   int idx;
3387   int value;
3388   int rc;
3389 
3390   if( objc!=4 ){
3391     Tcl_AppendResult(interp, "wrong # args: should be \"",
3392         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3393     return TCL_ERROR;
3394   }
3395 
3396   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3397   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3398   if( Tcl_GetIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3399 
3400   rc = sqlite3_bind_int(pStmt, idx, value);
3401   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3402   if( rc!=SQLITE_OK ){
3403     return TCL_ERROR;
3404   }
3405 
3406   return TCL_OK;
3407 }
3408 
3409 
3410 /*
3411 ** Usage:   intarray_addr  INT  ...
3412 **
3413 ** Return the address of a C-language array of 32-bit integers.
3414 **
3415 ** Space to hold the array is obtained from malloc().  Call this procedure once
3416 ** with no arguments in order to release memory.  Each call to this procedure
3417 ** overwrites the previous array.
3418 */
3419 static int SQLITE_TCLAPI test_intarray_addr(
3420   void * clientData,
3421   Tcl_Interp *interp,
3422   int objc,
3423   Tcl_Obj *CONST objv[]
3424 ){
3425   int i;
3426   static int *p = 0;
3427 
3428   sqlite3_free(p);
3429   p = 0;
3430   if( objc>1 ){
3431     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3432     if( p==0 ) return TCL_ERROR;
3433     for(i=0; i<objc-1; i++){
3434       if( Tcl_GetIntFromObj(interp, objv[1+i], &p[i]) ){
3435         sqlite3_free(p);
3436         p = 0;
3437         return TCL_ERROR;
3438       }
3439     }
3440   }
3441   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3442   return TCL_OK;
3443 }
3444 /*
3445 ** Usage:   intarray_addr  INT  ...
3446 **
3447 ** Return the address of a C-language array of 32-bit integers.
3448 **
3449 ** Space to hold the array is obtained from malloc().  Call this procedure once
3450 ** with no arguments in order to release memory.  Each call to this procedure
3451 ** overwrites the previous array.
3452 */
3453 static int SQLITE_TCLAPI test_int64array_addr(
3454   void * clientData,
3455   Tcl_Interp *interp,
3456   int objc,
3457   Tcl_Obj *CONST objv[]
3458 ){
3459   int i;
3460   static sqlite3_int64 *p = 0;
3461 
3462   sqlite3_free(p);
3463   p = 0;
3464   if( objc>1 ){
3465     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3466     if( p==0 ) return TCL_ERROR;
3467     for(i=0; i<objc-1; i++){
3468       Tcl_WideInt v;
3469       if( Tcl_GetWideIntFromObj(interp, objv[1+i], &v) ){
3470         sqlite3_free(p);
3471         p = 0;
3472         return TCL_ERROR;
3473       }
3474       p[i] = v;
3475     }
3476   }
3477   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3478   return TCL_OK;
3479 }
3480 /*
3481 ** Usage:   doublearray_addr  INT  ...
3482 **
3483 ** Return the address of a C-language array of doubles.
3484 **
3485 ** Space to hold the array is obtained from malloc().  Call this procedure once
3486 ** with no arguments in order to release memory.  Each call to this procedure
3487 ** overwrites the previous array.
3488 */
3489 static int SQLITE_TCLAPI test_doublearray_addr(
3490   void * clientData,
3491   Tcl_Interp *interp,
3492   int objc,
3493   Tcl_Obj *CONST objv[]
3494 ){
3495   int i;
3496   static double *p = 0;
3497 
3498   sqlite3_free(p);
3499   p = 0;
3500   if( objc>1 ){
3501     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3502     if( p==0 ) return TCL_ERROR;
3503     for(i=0; i<objc-1; i++){
3504       if( Tcl_GetDoubleFromObj(interp, objv[1+i], &p[i]) ){
3505         sqlite3_free(p);
3506         p = 0;
3507         return TCL_ERROR;
3508       }
3509     }
3510   }
3511   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3512   return TCL_OK;
3513 }
3514 /*
3515 ** Usage:   textarray_addr  TEXT ...
3516 **
3517 ** Return the address of a C-language array of strings.
3518 **
3519 ** Space to hold the array is obtained from malloc().  Call this procedure once
3520 ** with no arguments in order to release memory.  Each call to this procedure
3521 ** overwrites the previous array.
3522 */
3523 static int SQLITE_TCLAPI test_textarray_addr(
3524   void * clientData,
3525   Tcl_Interp *interp,
3526   int objc,
3527   Tcl_Obj *CONST objv[]
3528 ){
3529   int i;
3530   static int n = 0;
3531   static char **p = 0;
3532 
3533   for(i=0; i<n; i++) sqlite3_free(p[i]);
3534   sqlite3_free(p);
3535   p = 0;
3536   if( objc>1 ){
3537     p = sqlite3_malloc( sizeof(p[0])*(objc-1) );
3538     if( p==0 ) return TCL_ERROR;
3539     for(i=0; i<objc-1; i++){
3540       p[i] = sqlite3_mprintf("%s", Tcl_GetString(objv[1+i]));
3541     }
3542   }
3543   n = objc-1;
3544   Tcl_SetObjResult(interp, Tcl_NewWideIntObj((sqlite3_int64)p));
3545   return TCL_OK;
3546 }
3547 
3548 
3549 /*
3550 ** Usage:   sqlite3_bind_int64  STMT N VALUE
3551 **
3552 ** Test the sqlite3_bind_int64 interface.  STMT is a prepared statement.
3553 ** N is the index of a wildcard in the prepared statement.  This command
3554 ** binds a 64-bit integer VALUE to that wildcard.
3555 */
3556 static int SQLITE_TCLAPI test_bind_int64(
3557   void * clientData,
3558   Tcl_Interp *interp,
3559   int objc,
3560   Tcl_Obj *CONST objv[]
3561 ){
3562   sqlite3_stmt *pStmt;
3563   int idx;
3564   Tcl_WideInt value;
3565   int rc;
3566 
3567   if( objc!=4 ){
3568     Tcl_AppendResult(interp, "wrong # args: should be \"",
3569         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3570     return TCL_ERROR;
3571   }
3572 
3573   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3574   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3575   if( Tcl_GetWideIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3576 
3577   rc = sqlite3_bind_int64(pStmt, idx, value);
3578   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3579   if( rc!=SQLITE_OK ){
3580     return TCL_ERROR;
3581   }
3582 
3583   return TCL_OK;
3584 }
3585 
3586 
3587 /*
3588 ** Usage:   sqlite3_bind_double  STMT N VALUE
3589 **
3590 ** Test the sqlite3_bind_double interface.  STMT is a prepared statement.
3591 ** N is the index of a wildcard in the prepared statement.  This command
3592 ** binds a 64-bit integer VALUE to that wildcard.
3593 */
3594 static int SQLITE_TCLAPI test_bind_double(
3595   void * clientData,
3596   Tcl_Interp *interp,
3597   int objc,
3598   Tcl_Obj *CONST objv[]
3599 ){
3600   sqlite3_stmt *pStmt;
3601   int idx;
3602   double value = 0;
3603   int rc;
3604   const char *zVal;
3605   int i;
3606   static const struct {
3607     const char *zName;     /* Name of the special floating point value */
3608     unsigned int iUpper;   /* Upper 32 bits */
3609     unsigned int iLower;   /* Lower 32 bits */
3610   } aSpecialFp[] = {
3611     {  "NaN",      0x7fffffff, 0xffffffff },
3612     {  "SNaN",     0x7ff7ffff, 0xffffffff },
3613     {  "-NaN",     0xffffffff, 0xffffffff },
3614     {  "-SNaN",    0xfff7ffff, 0xffffffff },
3615     {  "+Inf",     0x7ff00000, 0x00000000 },
3616     {  "-Inf",     0xfff00000, 0x00000000 },
3617     {  "Epsilon",  0x00000000, 0x00000001 },
3618     {  "-Epsilon", 0x80000000, 0x00000001 },
3619     {  "NaN0",     0x7ff80000, 0x00000000 },
3620     {  "-NaN0",    0xfff80000, 0x00000000 },
3621   };
3622 
3623   if( objc!=4 ){
3624     Tcl_AppendResult(interp, "wrong # args: should be \"",
3625         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3626     return TCL_ERROR;
3627   }
3628 
3629   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3630   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3631 
3632   /* Intercept the string "NaN" and generate a NaN value for it.
3633   ** All other strings are passed through to Tcl_GetDoubleFromObj().
3634   ** Tcl_GetDoubleFromObj() should understand "NaN" but some versions
3635   ** contain a bug.
3636   */
3637   zVal = Tcl_GetString(objv[3]);
3638   for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
3639     if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
3640       sqlite3_uint64 x;
3641       x = aSpecialFp[i].iUpper;
3642       x <<= 32;
3643       x |= aSpecialFp[i].iLower;
3644       assert( sizeof(value)==8 );
3645       assert( sizeof(x)==8 );
3646       memcpy(&value, &x, 8);
3647       break;
3648     }
3649   }
3650   if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
3651          Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
3652     return TCL_ERROR;
3653   }
3654   rc = sqlite3_bind_double(pStmt, idx, value);
3655   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3656   if( rc!=SQLITE_OK ){
3657     return TCL_ERROR;
3658   }
3659 
3660   return TCL_OK;
3661 }
3662 
3663 /*
3664 ** Usage:   sqlite3_bind_null  STMT N
3665 **
3666 ** Test the sqlite3_bind_null interface.  STMT is a prepared statement.
3667 ** N is the index of a wildcard in the prepared statement.  This command
3668 ** binds a NULL to the wildcard.
3669 */
3670 static int SQLITE_TCLAPI test_bind_null(
3671   void * clientData,
3672   Tcl_Interp *interp,
3673   int objc,
3674   Tcl_Obj *CONST objv[]
3675 ){
3676   sqlite3_stmt *pStmt;
3677   int idx;
3678   int rc;
3679 
3680   if( objc!=3 ){
3681     Tcl_AppendResult(interp, "wrong # args: should be \"",
3682         Tcl_GetStringFromObj(objv[0], 0), " STMT N", 0);
3683     return TCL_ERROR;
3684   }
3685 
3686   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3687   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3688 
3689   rc = sqlite3_bind_null(pStmt, idx);
3690   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3691   if( rc!=SQLITE_OK ){
3692     return TCL_ERROR;
3693   }
3694 
3695   return TCL_OK;
3696 }
3697 
3698 /*
3699 ** Usage:   sqlite3_bind_text  STMT N STRING BYTES
3700 **
3701 ** Test the sqlite3_bind_text interface.  STMT is a prepared statement.
3702 ** N is the index of a wildcard in the prepared statement.  This command
3703 ** binds a UTF-8 string STRING to the wildcard.  The string is BYTES bytes
3704 ** long.
3705 */
3706 static int SQLITE_TCLAPI test_bind_text(
3707   void * clientData,
3708   Tcl_Interp *interp,
3709   int objc,
3710   Tcl_Obj *CONST objv[]
3711 ){
3712   sqlite3_stmt *pStmt;
3713   int idx;
3714   int bytes;
3715   char *value;
3716   int rc;
3717 
3718   if( objc!=5 ){
3719     Tcl_AppendResult(interp, "wrong # args: should be \"",
3720         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3721     return TCL_ERROR;
3722   }
3723 
3724   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3725   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3726   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &bytes);
3727   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3728 
3729   rc = sqlite3_bind_text(pStmt, idx, value, bytes, SQLITE_TRANSIENT);
3730   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3731   if( rc!=SQLITE_OK ){
3732     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3733     return TCL_ERROR;
3734   }
3735 
3736   return TCL_OK;
3737 }
3738 
3739 /*
3740 ** Usage:   sqlite3_bind_text16 ?-static? STMT N STRING BYTES
3741 **
3742 ** Test the sqlite3_bind_text16 interface.  STMT is a prepared statement.
3743 ** N is the index of a wildcard in the prepared statement.  This command
3744 ** binds a UTF-16 string STRING to the wildcard.  The string is BYTES bytes
3745 ** long.
3746 */
3747 static int SQLITE_TCLAPI test_bind_text16(
3748   void * clientData,
3749   Tcl_Interp *interp,
3750   int objc,
3751   Tcl_Obj *CONST objv[]
3752 ){
3753 #ifndef SQLITE_OMIT_UTF16
3754   sqlite3_stmt *pStmt;
3755   int idx;
3756   int bytes;
3757   char *value;
3758   int rc;
3759 
3760   void (*xDel)(void*) = (objc==6?SQLITE_STATIC:SQLITE_TRANSIENT);
3761   Tcl_Obj *oStmt    = objv[objc-4];
3762   Tcl_Obj *oN       = objv[objc-3];
3763   Tcl_Obj *oString  = objv[objc-2];
3764   Tcl_Obj *oBytes   = objv[objc-1];
3765 
3766   if( objc!=5 && objc!=6){
3767     Tcl_AppendResult(interp, "wrong # args: should be \"",
3768         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3769     return TCL_ERROR;
3770   }
3771 
3772   if( getStmtPointer(interp, Tcl_GetString(oStmt), &pStmt) ) return TCL_ERROR;
3773   if( Tcl_GetIntFromObj(interp, oN, &idx) ) return TCL_ERROR;
3774   value = (char*)Tcl_GetByteArrayFromObj(oString, 0);
3775   if( Tcl_GetIntFromObj(interp, oBytes, &bytes) ) return TCL_ERROR;
3776 
3777   rc = sqlite3_bind_text16(pStmt, idx, (void *)value, bytes, xDel);
3778   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3779   if( rc!=SQLITE_OK ){
3780     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3781     return TCL_ERROR;
3782   }
3783 
3784 #endif /* SQLITE_OMIT_UTF16 */
3785   return TCL_OK;
3786 }
3787 
3788 /*
3789 ** Usage:   sqlite3_bind_blob ?-static? STMT N DATA BYTES
3790 **
3791 ** Test the sqlite3_bind_blob interface.  STMT is a prepared statement.
3792 ** N is the index of a wildcard in the prepared statement.  This command
3793 ** binds a BLOB to the wildcard.  The BLOB is BYTES bytes in size.
3794 */
3795 static int SQLITE_TCLAPI test_bind_blob(
3796   void * clientData,
3797   Tcl_Interp *interp,
3798   int objc,
3799   Tcl_Obj *CONST objv[]
3800 ){
3801   sqlite3_stmt *pStmt;
3802   int len, idx;
3803   int bytes;
3804   char *value;
3805   int rc;
3806   sqlite3_destructor_type xDestructor = SQLITE_TRANSIENT;
3807 
3808   if( objc!=5 && objc!=6 ){
3809     Tcl_AppendResult(interp, "wrong # args: should be \"",
3810         Tcl_GetStringFromObj(objv[0], 0), " STMT N DATA BYTES", 0);
3811     return TCL_ERROR;
3812   }
3813 
3814   if( objc==6 ){
3815     xDestructor = SQLITE_STATIC;
3816     objv++;
3817   }
3818 
3819   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3820   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3821 
3822   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &len);
3823   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3824 
3825   if( bytes>len ){
3826     char zBuf[200];
3827     sqlite3_snprintf(sizeof(zBuf), zBuf,
3828                      "cannot use %d blob bytes, have %d", bytes, len);
3829     Tcl_AppendResult(interp, zBuf, -1);
3830     return TCL_ERROR;
3831   }
3832 
3833   rc = sqlite3_bind_blob(pStmt, idx, value, bytes, xDestructor);
3834   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3835   if( rc!=SQLITE_OK ){
3836     return TCL_ERROR;
3837   }
3838 
3839   return TCL_OK;
3840 }
3841 
3842 /*
3843 ** Usage:   sqlite3_bind_parameter_count  STMT
3844 **
3845 ** Return the number of wildcards in the given statement.
3846 */
3847 static int SQLITE_TCLAPI test_bind_parameter_count(
3848   void * clientData,
3849   Tcl_Interp *interp,
3850   int objc,
3851   Tcl_Obj *CONST objv[]
3852 ){
3853   sqlite3_stmt *pStmt;
3854 
3855   if( objc!=2 ){
3856     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3857     return TCL_ERROR;
3858   }
3859   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3860   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_bind_parameter_count(pStmt)));
3861   return TCL_OK;
3862 }
3863 
3864 /*
3865 ** Usage:   sqlite3_bind_parameter_name  STMT  N
3866 **
3867 ** Return the name of the Nth wildcard.  The first wildcard is 1.
3868 ** An empty string is returned if N is out of range or if the wildcard
3869 ** is nameless.
3870 */
3871 static int SQLITE_TCLAPI test_bind_parameter_name(
3872   void * clientData,
3873   Tcl_Interp *interp,
3874   int objc,
3875   Tcl_Obj *CONST objv[]
3876 ){
3877   sqlite3_stmt *pStmt;
3878   int i;
3879 
3880   if( objc!=3 ){
3881     Tcl_WrongNumArgs(interp, 1, objv, "STMT N");
3882     return TCL_ERROR;
3883   }
3884   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3885   if( Tcl_GetIntFromObj(interp, objv[2], &i) ) return TCL_ERROR;
3886   Tcl_SetObjResult(interp,
3887      Tcl_NewStringObj(sqlite3_bind_parameter_name(pStmt,i),-1)
3888   );
3889   return TCL_OK;
3890 }
3891 
3892 /*
3893 ** Usage:   sqlite3_bind_parameter_index  STMT  NAME
3894 **
3895 ** Return the index of the wildcard called NAME.  Return 0 if there is
3896 ** no such wildcard.
3897 */
3898 static int SQLITE_TCLAPI test_bind_parameter_index(
3899   void * clientData,
3900   Tcl_Interp *interp,
3901   int objc,
3902   Tcl_Obj *CONST objv[]
3903 ){
3904   sqlite3_stmt *pStmt;
3905 
3906   if( objc!=3 ){
3907     Tcl_WrongNumArgs(interp, 1, objv, "STMT NAME");
3908     return TCL_ERROR;
3909   }
3910   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3911   Tcl_SetObjResult(interp,
3912      Tcl_NewIntObj(
3913        sqlite3_bind_parameter_index(pStmt,Tcl_GetString(objv[2]))
3914      )
3915   );
3916   return TCL_OK;
3917 }
3918 
3919 /*
3920 ** Usage:   sqlite3_clear_bindings STMT
3921 **
3922 */
3923 static int SQLITE_TCLAPI test_clear_bindings(
3924   void * clientData,
3925   Tcl_Interp *interp,
3926   int objc,
3927   Tcl_Obj *CONST objv[]
3928 ){
3929   sqlite3_stmt *pStmt;
3930 
3931   if( objc!=2 ){
3932     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3933     return TCL_ERROR;
3934   }
3935   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3936   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_clear_bindings(pStmt)));
3937   return TCL_OK;
3938 }
3939 
3940 /*
3941 ** Usage:   sqlite3_sleep MILLISECONDS
3942 */
3943 static int SQLITE_TCLAPI test_sleep(
3944   void * clientData,
3945   Tcl_Interp *interp,
3946   int objc,
3947   Tcl_Obj *CONST objv[]
3948 ){
3949   int ms;
3950 
3951   if( objc!=2 ){
3952     Tcl_WrongNumArgs(interp, 1, objv, "MILLISECONDS");
3953     return TCL_ERROR;
3954   }
3955   if( Tcl_GetIntFromObj(interp, objv[1], &ms) ){
3956     return TCL_ERROR;
3957   }
3958   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_sleep(ms)));
3959   return TCL_OK;
3960 }
3961 
3962 /*
3963 ** Usage: sqlite3_extended_errcode DB
3964 **
3965 ** Return the string representation of the most recent sqlite3_* API
3966 ** error code. e.g. "SQLITE_ERROR".
3967 */
3968 static int SQLITE_TCLAPI test_ex_errcode(
3969   void * clientData,
3970   Tcl_Interp *interp,
3971   int objc,
3972   Tcl_Obj *CONST objv[]
3973 ){
3974   sqlite3 *db;
3975   int rc;
3976 
3977   if( objc!=2 ){
3978     Tcl_AppendResult(interp, "wrong # args: should be \"",
3979        Tcl_GetString(objv[0]), " DB", 0);
3980     return TCL_ERROR;
3981   }
3982   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3983   rc = sqlite3_extended_errcode(db);
3984   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
3985   return TCL_OK;
3986 }
3987 
3988 
3989 /*
3990 ** Usage: sqlite3_errcode DB
3991 **
3992 ** Return the string representation of the most recent sqlite3_* API
3993 ** error code. e.g. "SQLITE_ERROR".
3994 */
3995 static int SQLITE_TCLAPI test_errcode(
3996   void * clientData,
3997   Tcl_Interp *interp,
3998   int objc,
3999   Tcl_Obj *CONST objv[]
4000 ){
4001   sqlite3 *db;
4002   int rc;
4003 
4004   if( objc!=2 ){
4005     Tcl_AppendResult(interp, "wrong # args: should be \"",
4006        Tcl_GetString(objv[0]), " DB", 0);
4007     return TCL_ERROR;
4008   }
4009   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4010   rc = sqlite3_errcode(db);
4011   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
4012   return TCL_OK;
4013 }
4014 
4015 /*
4016 ** Usage:   sqlite3_errmsg DB
4017 **
4018 ** Returns the UTF-8 representation of the error message string for the
4019 ** most recent sqlite3_* API call.
4020 */
4021 static int SQLITE_TCLAPI test_errmsg(
4022   void * clientData,
4023   Tcl_Interp *interp,
4024   int objc,
4025   Tcl_Obj *CONST objv[]
4026 ){
4027   sqlite3 *db;
4028   const char *zErr;
4029 
4030   if( objc!=2 ){
4031     Tcl_AppendResult(interp, "wrong # args: should be \"",
4032        Tcl_GetString(objv[0]), " DB", 0);
4033     return TCL_ERROR;
4034   }
4035   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4036 
4037   zErr = sqlite3_errmsg(db);
4038   Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
4039   return TCL_OK;
4040 }
4041 
4042 /*
4043 ** Usage:   test_errmsg16 DB
4044 **
4045 ** Returns the UTF-16 representation of the error message string for the
4046 ** most recent sqlite3_* API call. This is a byte array object at the TCL
4047 ** level, and it includes the 0x00 0x00 terminator bytes at the end of the
4048 ** UTF-16 string.
4049 */
4050 static int SQLITE_TCLAPI test_errmsg16(
4051   void * clientData,
4052   Tcl_Interp *interp,
4053   int objc,
4054   Tcl_Obj *CONST objv[]
4055 ){
4056 #ifndef SQLITE_OMIT_UTF16
4057   sqlite3 *db;
4058   const void *zErr;
4059   const char *z;
4060   int bytes = 0;
4061 
4062   if( objc!=2 ){
4063     Tcl_AppendResult(interp, "wrong # args: should be \"",
4064        Tcl_GetString(objv[0]), " DB", 0);
4065     return TCL_ERROR;
4066   }
4067   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4068 
4069   zErr = sqlite3_errmsg16(db);
4070   if( zErr ){
4071     z = zErr;
4072     for(bytes=0; z[bytes] || z[bytes+1]; bytes+=2){}
4073   }
4074   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zErr, bytes));
4075 #endif /* SQLITE_OMIT_UTF16 */
4076   return TCL_OK;
4077 }
4078 
4079 /*
4080 ** Usage: sqlite3_prepare DB sql bytes ?tailvar?
4081 **
4082 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4083 ** database handle <DB>. The parameter <tailval> is the name of a global
4084 ** variable that is set to the unused portion of <sql> (if any). A
4085 ** STMT handle is returned.
4086 */
4087 static int SQLITE_TCLAPI test_prepare(
4088   void * clientData,
4089   Tcl_Interp *interp,
4090   int objc,
4091   Tcl_Obj *CONST objv[]
4092 ){
4093   sqlite3 *db;
4094   const char *zSql;
4095   int bytes;
4096   const char *zTail = 0;
4097   sqlite3_stmt *pStmt = 0;
4098   char zBuf[50];
4099   int rc;
4100 
4101   if( objc!=5 && objc!=4 ){
4102     Tcl_AppendResult(interp, "wrong # args: should be \"",
4103        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4104     return TCL_ERROR;
4105   }
4106   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4107   zSql = Tcl_GetString(objv[2]);
4108   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4109 
4110   rc = sqlite3_prepare(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4111   Tcl_ResetResult(interp);
4112   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4113   if( zTail && objc>=5 ){
4114     if( bytes>=0 ){
4115       bytes = bytes - (int)(zTail-zSql);
4116     }
4117     if( (int)strlen(zTail)<bytes ){
4118       bytes = (int)strlen(zTail);
4119     }
4120     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
4121   }
4122   if( rc!=SQLITE_OK ){
4123     assert( pStmt==0 );
4124     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4125     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4126     return TCL_ERROR;
4127   }
4128 
4129   if( pStmt ){
4130     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4131     Tcl_AppendResult(interp, zBuf, 0);
4132   }
4133   return TCL_OK;
4134 }
4135 
4136 /*
4137 ** Usage: sqlite3_prepare_v2 DB sql bytes ?tailvar?
4138 **
4139 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4140 ** database handle <DB>. The parameter <tailval> is the name of a global
4141 ** variable that is set to the unused portion of <sql> (if any). A
4142 ** STMT handle is returned.
4143 */
4144 static int SQLITE_TCLAPI test_prepare_v2(
4145   void * clientData,
4146   Tcl_Interp *interp,
4147   int objc,
4148   Tcl_Obj *CONST objv[]
4149 ){
4150   sqlite3 *db;
4151   const char *zSql;
4152   char *zCopy = 0;                /* malloc() copy of zSql */
4153   int bytes;
4154   const char *zTail = 0;
4155   sqlite3_stmt *pStmt = 0;
4156   char zBuf[50];
4157   int rc;
4158 
4159   if( objc!=5 && objc!=4 ){
4160     Tcl_AppendResult(interp, "wrong # args: should be \"",
4161        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
4162     return TCL_ERROR;
4163   }
4164   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4165   zSql = Tcl_GetString(objv[2]);
4166   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4167 
4168   /* Instead of using zSql directly, make a copy into a buffer obtained
4169   ** directly from malloc(). The idea is to make it easier for valgrind
4170   ** to spot buffer overreads.  */
4171   if( bytes>=0 ){
4172     zCopy = malloc(bytes);
4173     memcpy(zCopy, zSql, bytes);
4174   }else{
4175     int n = (int)strlen(zSql) + 1;
4176     zCopy = malloc(n);
4177     memcpy(zCopy, zSql, n);
4178   }
4179   rc = sqlite3_prepare_v2(db, zCopy, bytes, &pStmt, objc>=5 ? &zTail : 0);
4180   free(zCopy);
4181   zTail = &zSql[(zTail - zCopy)];
4182 
4183   assert(rc==SQLITE_OK || pStmt==0);
4184   Tcl_ResetResult(interp);
4185   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4186   if( rc==SQLITE_OK && zTail && objc>=5 ){
4187     if( bytes>=0 ){
4188       bytes = bytes - (int)(zTail-zSql);
4189     }
4190     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
4191   }
4192   if( rc!=SQLITE_OK ){
4193     assert( pStmt==0 );
4194     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4195     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4196     return TCL_ERROR;
4197   }
4198 
4199   if( pStmt ){
4200     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4201     Tcl_AppendResult(interp, zBuf, 0);
4202   }
4203   return TCL_OK;
4204 }
4205 
4206 /*
4207 ** Usage: sqlite3_prepare_tkt3134 DB
4208 **
4209 ** Generate a prepared statement for a zero-byte string as a test
4210 ** for ticket #3134.  The string should be preceded by a zero byte.
4211 */
4212 static int SQLITE_TCLAPI test_prepare_tkt3134(
4213   void * clientData,
4214   Tcl_Interp *interp,
4215   int objc,
4216   Tcl_Obj *CONST objv[]
4217 ){
4218   sqlite3 *db;
4219   static const char zSql[] = "\000SELECT 1";
4220   sqlite3_stmt *pStmt = 0;
4221   char zBuf[50];
4222   int rc;
4223 
4224   if( objc!=2 ){
4225     Tcl_AppendResult(interp, "wrong # args: should be \"",
4226        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
4227     return TCL_ERROR;
4228   }
4229   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4230   rc = sqlite3_prepare_v2(db, &zSql[1], 0, &pStmt, 0);
4231   assert(rc==SQLITE_OK || pStmt==0);
4232   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4233   if( rc!=SQLITE_OK ){
4234     assert( pStmt==0 );
4235     sqlite3_snprintf(sizeof(zBuf), zBuf, "(%d) ", rc);
4236     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
4237     return TCL_ERROR;
4238   }
4239 
4240   if( pStmt ){
4241     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4242     Tcl_AppendResult(interp, zBuf, 0);
4243   }
4244   return TCL_OK;
4245 }
4246 
4247 /*
4248 ** Usage: sqlite3_prepare16 DB sql bytes tailvar
4249 **
4250 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4251 ** database handle <DB>. The parameter <tailval> is the name of a global
4252 ** variable that is set to the unused portion of <sql> (if any). A
4253 ** STMT handle is returned.
4254 */
4255 static int SQLITE_TCLAPI test_prepare16(
4256   void * clientData,
4257   Tcl_Interp *interp,
4258   int objc,
4259   Tcl_Obj *CONST objv[]
4260 ){
4261 #ifndef SQLITE_OMIT_UTF16
4262   sqlite3 *db;
4263   const void *zSql;
4264   const void *zTail = 0;
4265   Tcl_Obj *pTail = 0;
4266   sqlite3_stmt *pStmt = 0;
4267   char zBuf[50];
4268   int rc;
4269   int bytes;                /* The integer specified as arg 3 */
4270   int objlen;               /* The byte-array length of arg 2 */
4271 
4272   if( objc!=5 && objc!=4 ){
4273     Tcl_AppendResult(interp, "wrong # args: should be \"",
4274        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4275     return TCL_ERROR;
4276   }
4277   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4278   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
4279   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4280 
4281   rc = sqlite3_prepare16(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4282   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4283   if( rc ){
4284     return TCL_ERROR;
4285   }
4286 
4287   if( objc>=5 ){
4288     if( zTail ){
4289       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
4290     }else{
4291       objlen = 0;
4292     }
4293     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
4294     Tcl_IncrRefCount(pTail);
4295     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
4296     Tcl_DecrRefCount(pTail);
4297   }
4298 
4299   if( pStmt ){
4300     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4301   }
4302   Tcl_AppendResult(interp, zBuf, 0);
4303 #endif /* SQLITE_OMIT_UTF16 */
4304   return TCL_OK;
4305 }
4306 
4307 /*
4308 ** Usage: sqlite3_prepare16_v2 DB sql bytes ?tailvar?
4309 **
4310 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
4311 ** database handle <DB>. The parameter <tailval> is the name of a global
4312 ** variable that is set to the unused portion of <sql> (if any). A
4313 ** STMT handle is returned.
4314 */
4315 static int SQLITE_TCLAPI test_prepare16_v2(
4316   void * clientData,
4317   Tcl_Interp *interp,
4318   int objc,
4319   Tcl_Obj *CONST objv[]
4320 ){
4321 #ifndef SQLITE_OMIT_UTF16
4322   sqlite3 *db;
4323   const void *zSql;
4324   const void *zTail = 0;
4325   Tcl_Obj *pTail = 0;
4326   sqlite3_stmt *pStmt = 0;
4327   char zBuf[50];
4328   int rc;
4329   int bytes;                /* The integer specified as arg 3 */
4330   int objlen;               /* The byte-array length of arg 2 */
4331 
4332   if( objc!=5 && objc!=4 ){
4333     Tcl_AppendResult(interp, "wrong # args: should be \"",
4334        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
4335     return TCL_ERROR;
4336   }
4337   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4338   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
4339   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
4340 
4341   rc = sqlite3_prepare16_v2(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
4342   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
4343   if( rc ){
4344     return TCL_ERROR;
4345   }
4346 
4347   if( objc>=5 ){
4348     if( zTail ){
4349       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
4350     }else{
4351       objlen = 0;
4352     }
4353     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
4354     Tcl_IncrRefCount(pTail);
4355     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
4356     Tcl_DecrRefCount(pTail);
4357   }
4358 
4359   if( pStmt ){
4360     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
4361   }
4362   Tcl_AppendResult(interp, zBuf, 0);
4363 #endif /* SQLITE_OMIT_UTF16 */
4364   return TCL_OK;
4365 }
4366 
4367 /*
4368 ** Usage: sqlite3_open filename ?options-list?
4369 */
4370 static int SQLITE_TCLAPI test_open(
4371   void * clientData,
4372   Tcl_Interp *interp,
4373   int objc,
4374   Tcl_Obj *CONST objv[]
4375 ){
4376   const char *zFilename;
4377   sqlite3 *db;
4378   char zBuf[100];
4379 
4380   if( objc!=3 && objc!=2 && objc!=1 ){
4381     Tcl_AppendResult(interp, "wrong # args: should be \"",
4382        Tcl_GetString(objv[0]), " filename options-list", 0);
4383     return TCL_ERROR;
4384   }
4385 
4386   zFilename = objc>1 ? Tcl_GetString(objv[1]) : 0;
4387   sqlite3_open(zFilename, &db);
4388 
4389   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4390   Tcl_AppendResult(interp, zBuf, 0);
4391   return TCL_OK;
4392 }
4393 
4394 /*
4395 ** Usage: sqlite3_open_v2 FILENAME FLAGS VFS
4396 */
4397 static int SQLITE_TCLAPI test_open_v2(
4398   void * clientData,
4399   Tcl_Interp *interp,
4400   int objc,
4401   Tcl_Obj *CONST objv[]
4402 ){
4403   const char *zFilename;
4404   const char *zVfs;
4405   int flags = 0;
4406   sqlite3 *db;
4407   int rc;
4408   char zBuf[100];
4409 
4410   int nFlag;
4411   Tcl_Obj **apFlag;
4412   int i;
4413 
4414   if( objc!=4 ){
4415     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME FLAGS VFS");
4416     return TCL_ERROR;
4417   }
4418   zFilename = Tcl_GetString(objv[1]);
4419   zVfs = Tcl_GetString(objv[3]);
4420   if( zVfs[0]==0x00 ) zVfs = 0;
4421 
4422   rc = Tcl_ListObjGetElements(interp, objv[2], &nFlag, &apFlag);
4423   if( rc!=TCL_OK ) return rc;
4424   for(i=0; i<nFlag; i++){
4425     int iFlag;
4426     struct OpenFlag {
4427       const char *zFlag;
4428       int flag;
4429     } aFlag[] = {
4430       { "SQLITE_OPEN_READONLY", SQLITE_OPEN_READONLY },
4431       { "SQLITE_OPEN_READWRITE", SQLITE_OPEN_READWRITE },
4432       { "SQLITE_OPEN_CREATE", SQLITE_OPEN_CREATE },
4433       { "SQLITE_OPEN_DELETEONCLOSE", SQLITE_OPEN_DELETEONCLOSE },
4434       { "SQLITE_OPEN_EXCLUSIVE", SQLITE_OPEN_EXCLUSIVE },
4435       { "SQLITE_OPEN_AUTOPROXY", SQLITE_OPEN_AUTOPROXY },
4436       { "SQLITE_OPEN_MAIN_DB", SQLITE_OPEN_MAIN_DB },
4437       { "SQLITE_OPEN_TEMP_DB", SQLITE_OPEN_TEMP_DB },
4438       { "SQLITE_OPEN_TRANSIENT_DB", SQLITE_OPEN_TRANSIENT_DB },
4439       { "SQLITE_OPEN_MAIN_JOURNAL", SQLITE_OPEN_MAIN_JOURNAL },
4440       { "SQLITE_OPEN_TEMP_JOURNAL", SQLITE_OPEN_TEMP_JOURNAL },
4441       { "SQLITE_OPEN_SUBJOURNAL", SQLITE_OPEN_SUBJOURNAL },
4442       { "SQLITE_OPEN_MASTER_JOURNAL", SQLITE_OPEN_MASTER_JOURNAL },
4443       { "SQLITE_OPEN_NOMUTEX", SQLITE_OPEN_NOMUTEX },
4444       { "SQLITE_OPEN_FULLMUTEX", SQLITE_OPEN_FULLMUTEX },
4445       { "SQLITE_OPEN_SHAREDCACHE", SQLITE_OPEN_SHAREDCACHE },
4446       { "SQLITE_OPEN_PRIVATECACHE", SQLITE_OPEN_PRIVATECACHE },
4447       { "SQLITE_OPEN_WAL", SQLITE_OPEN_WAL },
4448       { "SQLITE_OPEN_URI", SQLITE_OPEN_URI },
4449       { 0, 0 }
4450     };
4451     rc = Tcl_GetIndexFromObjStruct(interp, apFlag[i], aFlag, sizeof(aFlag[0]),
4452         "flag", 0, &iFlag
4453     );
4454     if( rc!=TCL_OK ) return rc;
4455     flags |= aFlag[iFlag].flag;
4456   }
4457 
4458   rc = sqlite3_open_v2(zFilename, &db, flags, zVfs);
4459   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4460   Tcl_AppendResult(interp, zBuf, 0);
4461   return TCL_OK;
4462 }
4463 
4464 /*
4465 ** Usage: sqlite3_open16 filename options
4466 */
4467 static int SQLITE_TCLAPI test_open16(
4468   void * clientData,
4469   Tcl_Interp *interp,
4470   int objc,
4471   Tcl_Obj *CONST objv[]
4472 ){
4473 #ifndef SQLITE_OMIT_UTF16
4474   const void *zFilename;
4475   sqlite3 *db;
4476   char zBuf[100];
4477 
4478   if( objc!=3 ){
4479     Tcl_AppendResult(interp, "wrong # args: should be \"",
4480        Tcl_GetString(objv[0]), " filename options-list", 0);
4481     return TCL_ERROR;
4482   }
4483 
4484   zFilename = Tcl_GetByteArrayFromObj(objv[1], 0);
4485   sqlite3_open16(zFilename, &db);
4486 
4487   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
4488   Tcl_AppendResult(interp, zBuf, 0);
4489 #endif /* SQLITE_OMIT_UTF16 */
4490   return TCL_OK;
4491 }
4492 
4493 /*
4494 ** Usage: sqlite3_complete16 <UTF-16 string>
4495 **
4496 ** Return 1 if the supplied argument is a complete SQL statement, or zero
4497 ** otherwise.
4498 */
4499 static int SQLITE_TCLAPI test_complete16(
4500   void * clientData,
4501   Tcl_Interp *interp,
4502   int objc,
4503   Tcl_Obj *CONST objv[]
4504 ){
4505 #if !defined(SQLITE_OMIT_COMPLETE) && !defined(SQLITE_OMIT_UTF16)
4506   char *zBuf;
4507 
4508   if( objc!=2 ){
4509     Tcl_WrongNumArgs(interp, 1, objv, "<utf-16 sql>");
4510     return TCL_ERROR;
4511   }
4512 
4513   zBuf = (char*)Tcl_GetByteArrayFromObj(objv[1], 0);
4514   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_complete16(zBuf)));
4515 #endif /* SQLITE_OMIT_COMPLETE && SQLITE_OMIT_UTF16 */
4516   return TCL_OK;
4517 }
4518 
4519 /*
4520 ** Usage: sqlite3_step STMT
4521 **
4522 ** Advance the statement to the next row.
4523 */
4524 static int SQLITE_TCLAPI test_step(
4525   void * clientData,
4526   Tcl_Interp *interp,
4527   int objc,
4528   Tcl_Obj *CONST objv[]
4529 ){
4530   sqlite3_stmt *pStmt;
4531   int rc;
4532 
4533   if( objc!=2 ){
4534     Tcl_AppendResult(interp, "wrong # args: should be \"",
4535        Tcl_GetString(objv[0]), " STMT", 0);
4536     return TCL_ERROR;
4537   }
4538 
4539   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4540   rc = sqlite3_step(pStmt);
4541 
4542   /* if( rc!=SQLITE_DONE && rc!=SQLITE_ROW ) return TCL_ERROR; */
4543   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
4544   return TCL_OK;
4545 }
4546 
4547 static int SQLITE_TCLAPI test_sql(
4548   void * clientData,
4549   Tcl_Interp *interp,
4550   int objc,
4551   Tcl_Obj *CONST objv[]
4552 ){
4553   sqlite3_stmt *pStmt;
4554 
4555   if( objc!=2 ){
4556     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4557     return TCL_ERROR;
4558   }
4559 
4560   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4561   Tcl_SetResult(interp, (char *)sqlite3_sql(pStmt), TCL_VOLATILE);
4562   return TCL_OK;
4563 }
4564 static int SQLITE_TCLAPI test_ex_sql(
4565   void * clientData,
4566   Tcl_Interp *interp,
4567   int objc,
4568   Tcl_Obj *CONST objv[]
4569 ){
4570   sqlite3_stmt *pStmt;
4571   char *z;
4572 
4573   if( objc!=2 ){
4574     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4575     return TCL_ERROR;
4576   }
4577 
4578   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4579   z = sqlite3_expanded_sql(pStmt);
4580   Tcl_SetResult(interp, z, TCL_VOLATILE);
4581   sqlite3_free(z);
4582   return TCL_OK;
4583 }
4584 
4585 /*
4586 ** Usage: sqlite3_column_count STMT
4587 **
4588 ** Return the number of columns returned by the sql statement STMT.
4589 */
4590 static int SQLITE_TCLAPI test_column_count(
4591   void * clientData,
4592   Tcl_Interp *interp,
4593   int objc,
4594   Tcl_Obj *CONST objv[]
4595 ){
4596   sqlite3_stmt *pStmt;
4597 
4598   if( objc!=2 ){
4599     Tcl_AppendResult(interp, "wrong # args: should be \"",
4600        Tcl_GetString(objv[0]), " STMT column", 0);
4601     return TCL_ERROR;
4602   }
4603 
4604   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4605 
4606   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_column_count(pStmt)));
4607   return TCL_OK;
4608 }
4609 
4610 /*
4611 ** Usage: sqlite3_column_type STMT column
4612 **
4613 ** Return the type of the data in column 'column' of the current row.
4614 */
4615 static int SQLITE_TCLAPI test_column_type(
4616   void * clientData,
4617   Tcl_Interp *interp,
4618   int objc,
4619   Tcl_Obj *CONST objv[]
4620 ){
4621   sqlite3_stmt *pStmt;
4622   int col;
4623   int tp;
4624 
4625   if( objc!=3 ){
4626     Tcl_AppendResult(interp, "wrong # args: should be \"",
4627        Tcl_GetString(objv[0]), " STMT column", 0);
4628     return TCL_ERROR;
4629   }
4630 
4631   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4632   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4633 
4634   tp = sqlite3_column_type(pStmt, col);
4635   switch( tp ){
4636     case SQLITE_INTEGER:
4637       Tcl_SetResult(interp, "INTEGER", TCL_STATIC);
4638       break;
4639     case SQLITE_NULL:
4640       Tcl_SetResult(interp, "NULL", TCL_STATIC);
4641       break;
4642     case SQLITE_FLOAT:
4643       Tcl_SetResult(interp, "FLOAT", TCL_STATIC);
4644       break;
4645     case SQLITE_TEXT:
4646       Tcl_SetResult(interp, "TEXT", TCL_STATIC);
4647       break;
4648     case SQLITE_BLOB:
4649       Tcl_SetResult(interp, "BLOB", TCL_STATIC);
4650       break;
4651     default:
4652       assert(0);
4653   }
4654 
4655   return TCL_OK;
4656 }
4657 
4658 /*
4659 ** Usage: sqlite3_column_int64 STMT column
4660 **
4661 ** Return the data in column 'column' of the current row cast as an
4662 ** wide (64-bit) integer.
4663 */
4664 static int SQLITE_TCLAPI test_column_int64(
4665   void * clientData,
4666   Tcl_Interp *interp,
4667   int objc,
4668   Tcl_Obj *CONST objv[]
4669 ){
4670   sqlite3_stmt *pStmt;
4671   int col;
4672   i64 iVal;
4673 
4674   if( objc!=3 ){
4675     Tcl_AppendResult(interp, "wrong # args: should be \"",
4676        Tcl_GetString(objv[0]), " STMT column", 0);
4677     return TCL_ERROR;
4678   }
4679 
4680   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4681   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4682 
4683   iVal = sqlite3_column_int64(pStmt, col);
4684   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(iVal));
4685   return TCL_OK;
4686 }
4687 
4688 /*
4689 ** Usage: sqlite3_column_blob STMT column
4690 */
4691 static int SQLITE_TCLAPI test_column_blob(
4692   void * clientData,
4693   Tcl_Interp *interp,
4694   int objc,
4695   Tcl_Obj *CONST objv[]
4696 ){
4697   sqlite3_stmt *pStmt;
4698   int col;
4699 
4700   int len;
4701   const void *pBlob;
4702 
4703   if( objc!=3 ){
4704     Tcl_AppendResult(interp, "wrong # args: should be \"",
4705        Tcl_GetString(objv[0]), " STMT column", 0);
4706     return TCL_ERROR;
4707   }
4708 
4709   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4710   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4711 
4712   len = sqlite3_column_bytes(pStmt, col);
4713   pBlob = sqlite3_column_blob(pStmt, col);
4714   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pBlob, len));
4715   return TCL_OK;
4716 }
4717 
4718 /*
4719 ** Usage: sqlite3_column_double STMT column
4720 **
4721 ** Return the data in column 'column' of the current row cast as a double.
4722 */
4723 static int SQLITE_TCLAPI test_column_double(
4724   void * clientData,
4725   Tcl_Interp *interp,
4726   int objc,
4727   Tcl_Obj *CONST objv[]
4728 ){
4729   sqlite3_stmt *pStmt;
4730   int col;
4731   double rVal;
4732 
4733   if( objc!=3 ){
4734     Tcl_AppendResult(interp, "wrong # args: should be \"",
4735        Tcl_GetString(objv[0]), " STMT column", 0);
4736     return TCL_ERROR;
4737   }
4738 
4739   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4740   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4741 
4742   rVal = sqlite3_column_double(pStmt, col);
4743   Tcl_SetObjResult(interp, Tcl_NewDoubleObj(rVal));
4744   return TCL_OK;
4745 }
4746 
4747 /*
4748 ** Usage: sqlite3_data_count STMT
4749 **
4750 ** Return the number of columns returned by the sql statement STMT.
4751 */
4752 static int SQLITE_TCLAPI test_data_count(
4753   void * clientData,
4754   Tcl_Interp *interp,
4755   int objc,
4756   Tcl_Obj *CONST objv[]
4757 ){
4758   sqlite3_stmt *pStmt;
4759 
4760   if( objc!=2 ){
4761     Tcl_AppendResult(interp, "wrong # args: should be \"",
4762        Tcl_GetString(objv[0]), " STMT column", 0);
4763     return TCL_ERROR;
4764   }
4765 
4766   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4767 
4768   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_data_count(pStmt)));
4769   return TCL_OK;
4770 }
4771 
4772 /*
4773 ** Usage: sqlite3_column_text STMT column
4774 **
4775 ** Usage: sqlite3_column_decltype STMT column
4776 **
4777 ** Usage: sqlite3_column_name STMT column
4778 */
4779 static int SQLITE_TCLAPI test_stmt_utf8(
4780   void * clientData,        /* Pointer to SQLite API function to be invoke */
4781   Tcl_Interp *interp,
4782   int objc,
4783   Tcl_Obj *CONST objv[]
4784 ){
4785   sqlite3_stmt *pStmt;
4786   int col;
4787   const char *(*xFunc)(sqlite3_stmt*, int);
4788   const char *zRet;
4789 
4790   xFunc = (const char *(*)(sqlite3_stmt*, int))clientData;
4791   if( objc!=3 ){
4792     Tcl_AppendResult(interp, "wrong # args: should be \"",
4793        Tcl_GetString(objv[0]), " STMT column", 0);
4794     return TCL_ERROR;
4795   }
4796 
4797   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4798   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4799   zRet = xFunc(pStmt, col);
4800   if( zRet ){
4801     Tcl_SetResult(interp, (char *)zRet, 0);
4802   }
4803   return TCL_OK;
4804 }
4805 
4806 static int SQLITE_TCLAPI test_global_recover(
4807   void * clientData,
4808   Tcl_Interp *interp,
4809   int objc,
4810   Tcl_Obj *CONST objv[]
4811 ){
4812 #ifndef SQLITE_OMIT_DEPRECATED
4813   int rc;
4814   if( objc!=1 ){
4815     Tcl_WrongNumArgs(interp, 1, objv, "");
4816     return TCL_ERROR;
4817   }
4818   rc = sqlite3_global_recover();
4819   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4820 #endif
4821   return TCL_OK;
4822 }
4823 
4824 /*
4825 ** Usage: sqlite3_column_text STMT column
4826 **
4827 ** Usage: sqlite3_column_decltype STMT column
4828 **
4829 ** Usage: sqlite3_column_name STMT column
4830 */
4831 static int SQLITE_TCLAPI test_stmt_utf16(
4832   void * clientData,     /* Pointer to SQLite API function to be invoked */
4833   Tcl_Interp *interp,
4834   int objc,
4835   Tcl_Obj *CONST objv[]
4836 ){
4837 #ifndef SQLITE_OMIT_UTF16
4838   sqlite3_stmt *pStmt;
4839   int col;
4840   Tcl_Obj *pRet;
4841   const void *zName16;
4842   const void *(*xFunc)(sqlite3_stmt*, int);
4843 
4844   xFunc = (const void *(*)(sqlite3_stmt*, int))clientData;
4845   if( objc!=3 ){
4846     Tcl_AppendResult(interp, "wrong # args: should be \"",
4847        Tcl_GetString(objv[0]), " STMT column", 0);
4848     return TCL_ERROR;
4849   }
4850 
4851   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4852   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4853 
4854   zName16 = xFunc(pStmt, col);
4855   if( zName16 ){
4856     int n;
4857     const char *z = zName16;
4858     for(n=0; z[n] || z[n+1]; n+=2){}
4859     pRet = Tcl_NewByteArrayObj(zName16, n+2);
4860     Tcl_SetObjResult(interp, pRet);
4861   }
4862 #endif /* SQLITE_OMIT_UTF16 */
4863 
4864   return TCL_OK;
4865 }
4866 
4867 /*
4868 ** Usage: sqlite3_column_int STMT column
4869 **
4870 ** Usage: sqlite3_column_bytes STMT column
4871 **
4872 ** Usage: sqlite3_column_bytes16 STMT column
4873 **
4874 */
4875 static int SQLITE_TCLAPI test_stmt_int(
4876   void * clientData,    /* Pointer to SQLite API function to be invoked */
4877   Tcl_Interp *interp,
4878   int objc,
4879   Tcl_Obj *CONST objv[]
4880 ){
4881   sqlite3_stmt *pStmt;
4882   int col;
4883   int (*xFunc)(sqlite3_stmt*, int);
4884 
4885   xFunc = (int (*)(sqlite3_stmt*, int))clientData;
4886   if( objc!=3 ){
4887     Tcl_AppendResult(interp, "wrong # args: should be \"",
4888        Tcl_GetString(objv[0]), " STMT column", 0);
4889     return TCL_ERROR;
4890   }
4891 
4892   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4893   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4894 
4895   Tcl_SetObjResult(interp, Tcl_NewIntObj(xFunc(pStmt, col)));
4896   return TCL_OK;
4897 }
4898 
4899 /*
4900 ** Usage:  sqlite_set_magic  DB  MAGIC-NUMBER
4901 **
4902 ** Set the db->magic value.  This is used to test error recovery logic.
4903 */
4904 static int SQLITE_TCLAPI sqlite_set_magic(
4905   void * clientData,
4906   Tcl_Interp *interp,
4907   int argc,
4908   char **argv
4909 ){
4910   sqlite3 *db;
4911   if( argc!=3 ){
4912     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4913          " DB MAGIC", 0);
4914     return TCL_ERROR;
4915   }
4916   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4917   if( strcmp(argv[2], "SQLITE_MAGIC_OPEN")==0 ){
4918     db->magic = SQLITE_MAGIC_OPEN;
4919   }else if( strcmp(argv[2], "SQLITE_MAGIC_CLOSED")==0 ){
4920     db->magic = SQLITE_MAGIC_CLOSED;
4921   }else if( strcmp(argv[2], "SQLITE_MAGIC_BUSY")==0 ){
4922     db->magic = SQLITE_MAGIC_BUSY;
4923   }else if( strcmp(argv[2], "SQLITE_MAGIC_ERROR")==0 ){
4924     db->magic = SQLITE_MAGIC_ERROR;
4925   }else if( Tcl_GetInt(interp, argv[2], (int*)&db->magic) ){
4926     return TCL_ERROR;
4927   }
4928   return TCL_OK;
4929 }
4930 
4931 /*
4932 ** Usage:  sqlite3_interrupt  DB
4933 **
4934 ** Trigger an interrupt on DB
4935 */
4936 static int SQLITE_TCLAPI test_interrupt(
4937   void * clientData,
4938   Tcl_Interp *interp,
4939   int argc,
4940   char **argv
4941 ){
4942   sqlite3 *db;
4943   if( argc!=2 ){
4944     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB", 0);
4945     return TCL_ERROR;
4946   }
4947   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4948   sqlite3_interrupt(db);
4949   return TCL_OK;
4950 }
4951 
4952 /*
4953 ** Usage: sqlite_delete_function DB function-name
4954 **
4955 ** Delete the user function 'function-name' from database handle DB. It
4956 ** is assumed that the user function was created as UTF8, any number of
4957 ** arguments (the way the TCL interface does it).
4958 */
4959 static int SQLITE_TCLAPI delete_function(
4960   void * clientData,
4961   Tcl_Interp *interp,
4962   int argc,
4963   char **argv
4964 ){
4965   int rc;
4966   sqlite3 *db;
4967   if( argc!=3 ){
4968     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4969         " DB function-name", 0);
4970     return TCL_ERROR;
4971   }
4972   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4973   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0, 0, 0, 0);
4974   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4975   return TCL_OK;
4976 }
4977 
4978 /*
4979 ** Usage: sqlite_delete_collation DB collation-name
4980 **
4981 ** Delete the collation sequence 'collation-name' from database handle
4982 ** DB. It is assumed that the collation sequence was created as UTF8 (the
4983 ** way the TCL interface does it).
4984 */
4985 static int SQLITE_TCLAPI delete_collation(
4986   void * clientData,
4987   Tcl_Interp *interp,
4988   int argc,
4989   char **argv
4990 ){
4991   int rc;
4992   sqlite3 *db;
4993   if( argc!=3 ){
4994     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4995         " DB function-name", 0);
4996     return TCL_ERROR;
4997   }
4998   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4999   rc = sqlite3_create_collation(db, argv[2], SQLITE_UTF8, 0, 0);
5000   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5001   return TCL_OK;
5002 }
5003 
5004 /*
5005 ** Usage: sqlite3_get_autocommit DB
5006 **
5007 ** Return true if the database DB is currently in auto-commit mode.
5008 ** Return false if not.
5009 */
5010 static int SQLITE_TCLAPI get_autocommit(
5011   void * clientData,
5012   Tcl_Interp *interp,
5013   int argc,
5014   char **argv
5015 ){
5016   char zBuf[30];
5017   sqlite3 *db;
5018   if( argc!=2 ){
5019     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5020         " DB", 0);
5021     return TCL_ERROR;
5022   }
5023   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5024   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", sqlite3_get_autocommit(db));
5025   Tcl_AppendResult(interp, zBuf, 0);
5026   return TCL_OK;
5027 }
5028 
5029 /*
5030 ** Usage: sqlite3_busy_timeout DB MS
5031 **
5032 ** Set the busy timeout.  This is more easily done using the timeout
5033 ** method of the TCL interface.  But we need a way to test the case
5034 ** where it returns SQLITE_MISUSE.
5035 */
5036 static int SQLITE_TCLAPI test_busy_timeout(
5037   void * clientData,
5038   Tcl_Interp *interp,
5039   int argc,
5040   char **argv
5041 ){
5042   int rc, ms;
5043   sqlite3 *db;
5044   if( argc!=3 ){
5045     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
5046         " DB", 0);
5047     return TCL_ERROR;
5048   }
5049   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
5050   if( Tcl_GetInt(interp, argv[2], &ms) ) return TCL_ERROR;
5051   rc = sqlite3_busy_timeout(db, ms);
5052   Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
5053   return TCL_OK;
5054 }
5055 
5056 /*
5057 ** Usage:  tcl_variable_type VARIABLENAME
5058 **
5059 ** Return the name of the internal representation for the
5060 ** value of the given variable.
5061 */
5062 static int SQLITE_TCLAPI tcl_variable_type(
5063   void * clientData,
5064   Tcl_Interp *interp,
5065   int objc,
5066   Tcl_Obj *CONST objv[]
5067 ){
5068   Tcl_Obj *pVar;
5069   if( objc!=2 ){
5070     Tcl_WrongNumArgs(interp, 1, objv, "VARIABLE");
5071     return TCL_ERROR;
5072   }
5073   pVar = Tcl_GetVar2Ex(interp, Tcl_GetString(objv[1]), 0, TCL_LEAVE_ERR_MSG);
5074   if( pVar==0 ) return TCL_ERROR;
5075   if( pVar->typePtr ){
5076     Tcl_SetObjResult(interp, Tcl_NewStringObj(pVar->typePtr->name, -1));
5077   }
5078   return TCL_OK;
5079 }
5080 
5081 /*
5082 ** Usage:  sqlite3_release_memory ?N?
5083 **
5084 ** Attempt to release memory currently held but not actually required.
5085 ** The integer N is the number of bytes we are trying to release.  The
5086 ** return value is the amount of memory actually released.
5087 */
5088 static int SQLITE_TCLAPI test_release_memory(
5089   void * clientData,
5090   Tcl_Interp *interp,
5091   int objc,
5092   Tcl_Obj *CONST objv[]
5093 ){
5094 #if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) && !defined(SQLITE_OMIT_DISKIO)
5095   int N;
5096   int amt;
5097   if( objc!=1 && objc!=2 ){
5098     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
5099     return TCL_ERROR;
5100   }
5101   if( objc==2 ){
5102     if( Tcl_GetIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
5103   }else{
5104     N = -1;
5105   }
5106   amt = sqlite3_release_memory(N);
5107   Tcl_SetObjResult(interp, Tcl_NewIntObj(amt));
5108 #endif
5109   return TCL_OK;
5110 }
5111 
5112 
5113 /*
5114 ** Usage:  sqlite3_db_release_memory DB
5115 **
5116 ** Attempt to release memory currently held by database DB.  Return the
5117 ** result code (which in the current implementation is always zero).
5118 */
5119 static int SQLITE_TCLAPI test_db_release_memory(
5120   void * clientData,
5121   Tcl_Interp *interp,
5122   int objc,
5123   Tcl_Obj *CONST objv[]
5124 ){
5125   sqlite3 *db;
5126   int rc;
5127   if( objc!=2 ){
5128     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5129     return TCL_ERROR;
5130   }
5131   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5132   rc = sqlite3_db_release_memory(db);
5133   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5134   return TCL_OK;
5135 }
5136 
5137 /*
5138 ** Usage:  sqlite3_db_cacheflush DB
5139 **
5140 ** Attempt to flush any dirty pages to disk.
5141 */
5142 static int SQLITE_TCLAPI test_db_cacheflush(
5143   void * clientData,
5144   Tcl_Interp *interp,
5145   int objc,
5146   Tcl_Obj *CONST objv[]
5147 ){
5148   sqlite3 *db;
5149   int rc;
5150   if( objc!=2 ){
5151     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5152     return TCL_ERROR;
5153   }
5154   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5155   rc = sqlite3_db_cacheflush(db);
5156   if( rc ){
5157     Tcl_SetResult(interp, (char *)sqlite3ErrStr(rc), TCL_STATIC);
5158     return TCL_ERROR;
5159   }
5160 
5161   Tcl_ResetResult(interp);
5162   return TCL_OK;
5163 }
5164 
5165 /*
5166 ** Usage:  sqlite3_system_errno DB
5167 **
5168 ** Return the low-level system errno value.
5169 */
5170 static int SQLITE_TCLAPI test_system_errno(
5171   void * clientData,
5172   Tcl_Interp *interp,
5173   int objc,
5174   Tcl_Obj *CONST objv[]
5175 ){
5176   sqlite3 *db;
5177   int iErrno;
5178   if( objc!=2 ){
5179     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5180     return TCL_ERROR;
5181   }
5182   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5183   iErrno = sqlite3_system_errno(db);
5184   Tcl_SetObjResult(interp, Tcl_NewIntObj(iErrno));
5185   return TCL_OK;
5186 }
5187 
5188 /*
5189 ** Usage:  sqlite3_db_filename DB DBNAME
5190 **
5191 ** Return the name of a file associated with a database.
5192 */
5193 static int SQLITE_TCLAPI test_db_filename(
5194   void * clientData,
5195   Tcl_Interp *interp,
5196   int objc,
5197   Tcl_Obj *CONST objv[]
5198 ){
5199   sqlite3 *db;
5200   const char *zDbName;
5201   if( objc!=3 ){
5202     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
5203     return TCL_ERROR;
5204   }
5205   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5206   zDbName = Tcl_GetString(objv[2]);
5207   Tcl_AppendResult(interp, sqlite3_db_filename(db, zDbName), (void*)0);
5208   return TCL_OK;
5209 }
5210 
5211 /*
5212 ** Usage:  sqlite3_db_readonly DB DBNAME
5213 **
5214 ** Return 1 or 0 if DBNAME is readonly or not.  Return -1 if DBNAME does
5215 ** not exist.
5216 */
5217 static int SQLITE_TCLAPI test_db_readonly(
5218   void * clientData,
5219   Tcl_Interp *interp,
5220   int objc,
5221   Tcl_Obj *CONST objv[]
5222 ){
5223   sqlite3 *db;
5224   const char *zDbName;
5225   if( objc!=3 ){
5226     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
5227     return TCL_ERROR;
5228   }
5229   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5230   zDbName = Tcl_GetString(objv[2]);
5231   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_db_readonly(db, zDbName)));
5232   return TCL_OK;
5233 }
5234 
5235 /*
5236 ** Usage:  sqlite3_soft_heap_limit ?N?
5237 **
5238 ** Query or set the soft heap limit for the current thread.  The
5239 ** limit is only changed if the N is present.  The previous limit
5240 ** is returned.
5241 */
5242 static int SQLITE_TCLAPI test_soft_heap_limit(
5243   void * clientData,
5244   Tcl_Interp *interp,
5245   int objc,
5246   Tcl_Obj *CONST objv[]
5247 ){
5248   sqlite3_int64 amt;
5249   Tcl_WideInt N = -1;
5250   if( objc!=1 && objc!=2 ){
5251     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
5252     return TCL_ERROR;
5253   }
5254   if( objc==2 ){
5255     if( Tcl_GetWideIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
5256   }
5257   amt = sqlite3_soft_heap_limit64(N);
5258   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(amt));
5259   return TCL_OK;
5260 }
5261 
5262 /*
5263 ** Usage:   sqlite3_thread_cleanup
5264 **
5265 ** Call the sqlite3_thread_cleanup API.
5266 */
5267 static int SQLITE_TCLAPI test_thread_cleanup(
5268   void * clientData,
5269   Tcl_Interp *interp,
5270   int objc,
5271   Tcl_Obj *CONST objv[]
5272 ){
5273 #ifndef SQLITE_OMIT_DEPRECATED
5274   sqlite3_thread_cleanup();
5275 #endif
5276   return TCL_OK;
5277 }
5278 
5279 /*
5280 ** Usage:   sqlite3_pager_refcounts  DB
5281 **
5282 ** Return a list of numbers which are the PagerRefcount for all
5283 ** pagers on each database connection.
5284 */
5285 static int SQLITE_TCLAPI test_pager_refcounts(
5286   void * clientData,
5287   Tcl_Interp *interp,
5288   int objc,
5289   Tcl_Obj *CONST objv[]
5290 ){
5291   sqlite3 *db;
5292   int i;
5293   int v, *a;
5294   Tcl_Obj *pResult;
5295 
5296   if( objc!=2 ){
5297     Tcl_AppendResult(interp, "wrong # args: should be \"",
5298         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5299     return TCL_ERROR;
5300   }
5301   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5302   pResult = Tcl_NewObj();
5303   for(i=0; i<db->nDb; i++){
5304     if( db->aDb[i].pBt==0 ){
5305       v = -1;
5306     }else{
5307       sqlite3_mutex_enter(db->mutex);
5308       a = sqlite3PagerStats(sqlite3BtreePager(db->aDb[i].pBt));
5309       v = a[0];
5310       sqlite3_mutex_leave(db->mutex);
5311     }
5312     Tcl_ListObjAppendElement(0, pResult, Tcl_NewIntObj(v));
5313   }
5314   Tcl_SetObjResult(interp, pResult);
5315   return TCL_OK;
5316 }
5317 
5318 
5319 /*
5320 ** tclcmd:   working_64bit_int
5321 **
5322 ** Some TCL builds (ex: cygwin) do not support 64-bit integers.  This
5323 ** leads to a number of test failures.  The present command checks the
5324 ** TCL build to see whether or not it supports 64-bit integers.  It
5325 ** returns TRUE if it does and FALSE if not.
5326 **
5327 ** This command is used to warn users that their TCL build is defective
5328 ** and that the errors they are seeing in the test scripts might be
5329 ** a result of their defective TCL rather than problems in SQLite.
5330 */
5331 static int SQLITE_TCLAPI working_64bit_int(
5332   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5333   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5334   int objc,              /* Number of arguments */
5335   Tcl_Obj *CONST objv[]  /* Command arguments */
5336 ){
5337   Tcl_Obj *pTestObj;
5338   int working = 0;
5339 
5340   pTestObj = Tcl_NewWideIntObj(1000000*(i64)1234567890);
5341   working = strcmp(Tcl_GetString(pTestObj), "1234567890000000")==0;
5342   Tcl_DecrRefCount(pTestObj);
5343   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(working));
5344   return TCL_OK;
5345 }
5346 
5347 
5348 /*
5349 ** tclcmd:   vfs_unlink_test
5350 **
5351 ** This TCL command unregisters the primary VFS and then registers
5352 ** it back again.  This is used to test the ability to register a
5353 ** VFS when none are previously registered, and the ability to
5354 ** unregister the only available VFS.  Ticket #2738
5355 */
5356 static int SQLITE_TCLAPI vfs_unlink_test(
5357   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5358   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5359   int objc,              /* Number of arguments */
5360   Tcl_Obj *CONST objv[]  /* Command arguments */
5361 ){
5362   int i;
5363   sqlite3_vfs *pMain;
5364   sqlite3_vfs *apVfs[20];
5365   sqlite3_vfs one, two;
5366 
5367   sqlite3_vfs_unregister(0);   /* Unregister of NULL is harmless */
5368   one.zName = "__one";
5369   two.zName = "__two";
5370 
5371   /* Calling sqlite3_vfs_register with 2nd argument of 0 does not
5372   ** change the default VFS
5373   */
5374   pMain = sqlite3_vfs_find(0);
5375   sqlite3_vfs_register(&one, 0);
5376   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
5377   sqlite3_vfs_register(&two, 0);
5378   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
5379 
5380   /* We can find a VFS by its name */
5381   assert( sqlite3_vfs_find("__one")==&one );
5382   assert( sqlite3_vfs_find("__two")==&two );
5383 
5384   /* Calling sqlite_vfs_register with non-zero second parameter changes the
5385   ** default VFS, even if the 1st parameter is an existig VFS that is
5386   ** previously registered as the non-default.
5387   */
5388   sqlite3_vfs_register(&one, 1);
5389   assert( sqlite3_vfs_find("__one")==&one );
5390   assert( sqlite3_vfs_find("__two")==&two );
5391   assert( sqlite3_vfs_find(0)==&one );
5392   sqlite3_vfs_register(&two, 1);
5393   assert( sqlite3_vfs_find("__one")==&one );
5394   assert( sqlite3_vfs_find("__two")==&two );
5395   assert( sqlite3_vfs_find(0)==&two );
5396   if( pMain ){
5397     sqlite3_vfs_register(pMain, 1);
5398     assert( sqlite3_vfs_find("__one")==&one );
5399     assert( sqlite3_vfs_find("__two")==&two );
5400     assert( sqlite3_vfs_find(0)==pMain );
5401   }
5402 
5403   /* Unlink the default VFS.  Repeat until there are no more VFSes
5404   ** registered.
5405   */
5406   for(i=0; i<sizeof(apVfs)/sizeof(apVfs[0]); i++){
5407     apVfs[i] = sqlite3_vfs_find(0);
5408     if( apVfs[i] ){
5409       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
5410       sqlite3_vfs_unregister(apVfs[i]);
5411       assert( 0==sqlite3_vfs_find(apVfs[i]->zName) );
5412     }
5413   }
5414   assert( 0==sqlite3_vfs_find(0) );
5415 
5416   /* Register the main VFS as non-default (will be made default, since
5417   ** it'll be the only one in existence).
5418   */
5419   sqlite3_vfs_register(pMain, 0);
5420   assert( sqlite3_vfs_find(0)==pMain );
5421 
5422   /* Un-register the main VFS again to restore an empty VFS list */
5423   sqlite3_vfs_unregister(pMain);
5424   assert( 0==sqlite3_vfs_find(0) );
5425 
5426   /* Relink all VFSes in reverse order. */
5427   for(i=sizeof(apVfs)/sizeof(apVfs[0])-1; i>=0; i--){
5428     if( apVfs[i] ){
5429       sqlite3_vfs_register(apVfs[i], 1);
5430       assert( apVfs[i]==sqlite3_vfs_find(0) );
5431       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
5432     }
5433   }
5434 
5435   /* Unregister out sample VFSes. */
5436   sqlite3_vfs_unregister(&one);
5437   sqlite3_vfs_unregister(&two);
5438 
5439   /* Unregistering a VFS that is not currently registered is harmless */
5440   sqlite3_vfs_unregister(&one);
5441   sqlite3_vfs_unregister(&two);
5442   assert( sqlite3_vfs_find("__one")==0 );
5443   assert( sqlite3_vfs_find("__two")==0 );
5444 
5445   /* We should be left with the original default VFS back as the
5446   ** original */
5447   assert( sqlite3_vfs_find(0)==pMain );
5448 
5449   return TCL_OK;
5450 }
5451 
5452 /*
5453 ** tclcmd:   vfs_initfail_test
5454 **
5455 ** This TCL command attempts to vfs_find and vfs_register when the
5456 ** sqlite3_initialize() interface is failing.  All calls should fail.
5457 */
5458 static int SQLITE_TCLAPI vfs_initfail_test(
5459   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5460   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5461   int objc,              /* Number of arguments */
5462   Tcl_Obj *CONST objv[]  /* Command arguments */
5463 ){
5464   sqlite3_vfs one;
5465   one.zName = "__one";
5466 
5467   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5468   sqlite3_vfs_register(&one, 0);
5469   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5470   sqlite3_vfs_register(&one, 1);
5471   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
5472   return TCL_OK;
5473 }
5474 
5475 /*
5476 ** Saved VFSes
5477 */
5478 static sqlite3_vfs *apVfs[20];
5479 static int nVfs = 0;
5480 
5481 /*
5482 ** tclcmd:   vfs_unregister_all
5483 **
5484 ** Unregister all VFSes.
5485 */
5486 static int SQLITE_TCLAPI vfs_unregister_all(
5487   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5488   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5489   int objc,              /* Number of arguments */
5490   Tcl_Obj *CONST objv[]  /* Command arguments */
5491 ){
5492   int i;
5493   for(i=0; i<ArraySize(apVfs); i++){
5494     apVfs[i] = sqlite3_vfs_find(0);
5495     if( apVfs[i]==0 ) break;
5496     sqlite3_vfs_unregister(apVfs[i]);
5497   }
5498   nVfs = i;
5499   return TCL_OK;
5500 }
5501 /*
5502 ** tclcmd:   vfs_reregister_all
5503 **
5504 ** Restore all VFSes that were removed using vfs_unregister_all. Taking
5505 ** care to put the linked list back together in the same order as it was
5506 ** in before vfs_unregister_all was invoked.
5507 */
5508 static int SQLITE_TCLAPI vfs_reregister_all(
5509   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5510   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5511   int objc,              /* Number of arguments */
5512   Tcl_Obj *CONST objv[]  /* Command arguments */
5513 ){
5514   int i;
5515   for(i=nVfs-1; i>=0; i--){
5516     sqlite3_vfs_register(apVfs[i], 1);
5517   }
5518   return TCL_OK;
5519 }
5520 
5521 
5522 /*
5523 ** tclcmd:   file_control_test DB
5524 **
5525 ** This TCL command runs the sqlite3_file_control interface and
5526 ** verifies correct operation of the same.
5527 */
5528 static int SQLITE_TCLAPI file_control_test(
5529   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5530   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5531   int objc,              /* Number of arguments */
5532   Tcl_Obj *CONST objv[]  /* Command arguments */
5533 ){
5534   int iArg = 0;
5535   sqlite3 *db;
5536   int rc;
5537 
5538   if( objc!=2 ){
5539     Tcl_AppendResult(interp, "wrong # args: should be \"",
5540         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5541     return TCL_ERROR;
5542   }
5543   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5544   rc = sqlite3_file_control(db, 0, 0, &iArg);
5545   assert( rc==SQLITE_NOTFOUND );
5546   rc = sqlite3_file_control(db, "notadatabase", SQLITE_FCNTL_LOCKSTATE, &iArg);
5547   assert( rc==SQLITE_ERROR );
5548   rc = sqlite3_file_control(db, "main", -1, &iArg);
5549   assert( rc==SQLITE_NOTFOUND );
5550   rc = sqlite3_file_control(db, "temp", -1, &iArg);
5551   assert( rc==SQLITE_NOTFOUND || rc==SQLITE_ERROR );
5552 
5553   return TCL_OK;
5554 }
5555 
5556 
5557 /*
5558 ** tclcmd:   file_control_lasterrno_test DB
5559 **
5560 ** This TCL command runs the sqlite3_file_control interface and
5561 ** verifies correct operation of the SQLITE_LAST_ERRNO verb.
5562 */
5563 static int SQLITE_TCLAPI file_control_lasterrno_test(
5564   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5565   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5566   int objc,              /* Number of arguments */
5567   Tcl_Obj *CONST objv[]  /* Command arguments */
5568 ){
5569   int iArg = 0;
5570   sqlite3 *db;
5571   int rc;
5572 
5573   if( objc!=2 ){
5574     Tcl_AppendResult(interp, "wrong # args: should be \"",
5575         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5576     return TCL_ERROR;
5577   }
5578   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5579     return TCL_ERROR;
5580   }
5581   rc = sqlite3_file_control(db, NULL, SQLITE_LAST_ERRNO, &iArg);
5582   if( rc ){
5583     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5584     return TCL_ERROR;
5585   }
5586   if( iArg!=0 ) {
5587     Tcl_AppendResult(interp, "Unexpected non-zero errno: ",
5588                      Tcl_GetStringFromObj(Tcl_NewIntObj(iArg), 0), " ", 0);
5589     return TCL_ERROR;
5590   }
5591   return TCL_OK;
5592 }
5593 
5594 /*
5595 ** tclcmd:   file_control_chunksize_test DB DBNAME SIZE
5596 **
5597 ** This TCL command runs the sqlite3_file_control interface and
5598 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5599 ** SQLITE_SET_LOCKPROXYFILE verbs.
5600 */
5601 static int SQLITE_TCLAPI file_control_chunksize_test(
5602   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5603   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5604   int objc,              /* Number of arguments */
5605   Tcl_Obj *CONST objv[]  /* Command arguments */
5606 ){
5607   int nSize;                      /* New chunk size */
5608   char *zDb;                      /* Db name ("main", "temp" etc.) */
5609   sqlite3 *db;                    /* Database handle */
5610   int rc;                         /* file_control() return code */
5611 
5612   if( objc!=4 ){
5613     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5614     return TCL_ERROR;
5615   }
5616   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5617    || Tcl_GetIntFromObj(interp, objv[3], &nSize)
5618   ){
5619    return TCL_ERROR;
5620   }
5621   zDb = Tcl_GetString(objv[2]);
5622   if( zDb[0]=='\0' ) zDb = NULL;
5623 
5624   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_CHUNK_SIZE, (void *)&nSize);
5625   if( rc ){
5626     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5627     return TCL_ERROR;
5628   }
5629   return TCL_OK;
5630 }
5631 
5632 /*
5633 ** tclcmd:   file_control_sizehint_test DB DBNAME SIZE
5634 **
5635 ** This TCL command runs the sqlite3_file_control interface
5636 ** with SQLITE_FCNTL_SIZE_HINT
5637 */
5638 static int SQLITE_TCLAPI file_control_sizehint_test(
5639   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5640   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5641   int objc,              /* Number of arguments */
5642   Tcl_Obj *CONST objv[]  /* Command arguments */
5643 ){
5644   Tcl_WideInt nSize;              /* Hinted size */
5645   char *zDb;                      /* Db name ("main", "temp" etc.) */
5646   sqlite3 *db;                    /* Database handle */
5647   int rc;                         /* file_control() return code */
5648 
5649   if( objc!=4 ){
5650     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5651     return TCL_ERROR;
5652   }
5653   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5654    || Tcl_GetWideIntFromObj(interp, objv[3], &nSize)
5655   ){
5656    return TCL_ERROR;
5657   }
5658   zDb = Tcl_GetString(objv[2]);
5659   if( zDb[0]=='\0' ) zDb = NULL;
5660 
5661   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_SIZE_HINT, (void *)&nSize);
5662   if( rc ){
5663     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5664     return TCL_ERROR;
5665   }
5666   return TCL_OK;
5667 }
5668 
5669 /*
5670 ** tclcmd:   file_control_lockproxy_test DB PWD
5671 **
5672 ** This TCL command runs the sqlite3_file_control interface and
5673 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5674 ** SQLITE_SET_LOCKPROXYFILE verbs.
5675 */
5676 static int SQLITE_TCLAPI file_control_lockproxy_test(
5677   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5678   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5679   int objc,              /* Number of arguments */
5680   Tcl_Obj *CONST objv[]  /* Command arguments */
5681 ){
5682   sqlite3 *db;
5683 
5684   if( objc!=3 ){
5685     Tcl_AppendResult(interp, "wrong # args: should be \"",
5686                      Tcl_GetStringFromObj(objv[0], 0), " DB PWD", 0);
5687     return TCL_ERROR;
5688   }
5689   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5690    return TCL_ERROR;
5691   }
5692 
5693 #if !defined(SQLITE_ENABLE_LOCKING_STYLE)
5694 #  if defined(__APPLE__)
5695 #    define SQLITE_ENABLE_LOCKING_STYLE 1
5696 #  else
5697 #    define SQLITE_ENABLE_LOCKING_STYLE 0
5698 #  endif
5699 #endif
5700 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
5701   {
5702     char *testPath;
5703     int rc;
5704     int nPwd;
5705     const char *zPwd;
5706     char proxyPath[400];
5707 
5708     zPwd = Tcl_GetStringFromObj(objv[2], &nPwd);
5709     if( sizeof(proxyPath)<nPwd+20 ){
5710       Tcl_AppendResult(interp, "PWD too big", (void*)0);
5711       return TCL_ERROR;
5712     }
5713     sqlite3_snprintf(sizeof(proxyPath), proxyPath, "%s/test.proxy", zPwd);
5714     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5715     if( rc ){
5716       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5717       return TCL_ERROR;
5718     }
5719     rc = sqlite3_file_control(db, NULL, SQLITE_GET_LOCKPROXYFILE, &testPath);
5720     if( strncmp(proxyPath,testPath,11) ){
5721       Tcl_AppendResult(interp, "Lock proxy file did not match the "
5722                                "previously assigned value", 0);
5723       return TCL_ERROR;
5724     }
5725     if( rc ){
5726       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5727       return TCL_ERROR;
5728     }
5729     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5730     if( rc ){
5731       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5732       return TCL_ERROR;
5733     }
5734   }
5735 #endif
5736   return TCL_OK;
5737 }
5738 
5739 #if SQLITE_OS_WIN
5740 /*
5741 ** tclcmd:   file_control_win32_av_retry DB  NRETRY  DELAY
5742 **
5743 ** This TCL command runs the sqlite3_file_control interface with
5744 ** the SQLITE_FCNTL_WIN32_AV_RETRY opcode.
5745 */
5746 static int SQLITE_TCLAPI file_control_win32_av_retry(
5747   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5748   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5749   int objc,              /* Number of arguments */
5750   Tcl_Obj *CONST objv[]  /* Command arguments */
5751 ){
5752   sqlite3 *db;
5753   int rc;
5754   int a[2];
5755   char z[100];
5756 
5757   if( objc!=4 ){
5758     Tcl_AppendResult(interp, "wrong # args: should be \"",
5759         Tcl_GetStringFromObj(objv[0], 0), " DB NRETRY DELAY", 0);
5760     return TCL_ERROR;
5761   }
5762   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5763     return TCL_ERROR;
5764   }
5765   if( Tcl_GetIntFromObj(interp, objv[2], &a[0]) ) return TCL_ERROR;
5766   if( Tcl_GetIntFromObj(interp, objv[3], &a[1]) ) return TCL_ERROR;
5767   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_AV_RETRY, (void*)a);
5768   sqlite3_snprintf(sizeof(z), z, "%d %d %d", rc, a[0], a[1]);
5769   Tcl_AppendResult(interp, z, (char*)0);
5770   return TCL_OK;
5771 }
5772 
5773 /*
5774 ** tclcmd:   file_control_win32_get_handle DB
5775 **
5776 ** This TCL command runs the sqlite3_file_control interface with
5777 ** the SQLITE_FCNTL_WIN32_GET_HANDLE opcode.
5778 */
5779 static int file_control_win32_get_handle(
5780   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5781   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5782   int objc,              /* Number of arguments */
5783   Tcl_Obj *CONST objv[]  /* Command arguments */
5784 ){
5785   sqlite3 *db;
5786   int rc;
5787   HANDLE hFile = NULL;
5788   char z[100];
5789 
5790   if( objc!=2 ){
5791     Tcl_AppendResult(interp, "wrong # args: should be \"",
5792         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5793     return TCL_ERROR;
5794   }
5795   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5796     return TCL_ERROR;
5797   }
5798   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_GET_HANDLE,
5799                             (void*)&hFile);
5800   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
5801   Tcl_AppendResult(interp, z, (char*)0);
5802   return TCL_OK;
5803 }
5804 
5805 /*
5806 ** tclcmd:   file_control_win32_set_handle DB HANDLE
5807 **
5808 ** This TCL command runs the sqlite3_file_control interface with
5809 ** the SQLITE_FCNTL_WIN32_SET_HANDLE opcode.
5810 */
5811 static int SQLITE_TCLAPI file_control_win32_set_handle(
5812   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5813   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5814   int objc,              /* Number of arguments */
5815   Tcl_Obj *CONST objv[]  /* Command arguments */
5816 ){
5817   sqlite3 *db;
5818   int rc;
5819   HANDLE hFile = NULL;
5820   char z[100];
5821 
5822   if( objc!=3 ){
5823     Tcl_AppendResult(interp, "wrong # args: should be \"",
5824         Tcl_GetStringFromObj(objv[0], 0), " DB HANDLE", 0);
5825     return TCL_ERROR;
5826   }
5827   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5828     return TCL_ERROR;
5829   }
5830   if( getWin32Handle(interp, Tcl_GetString(objv[2]), &hFile) ){
5831     return TCL_ERROR;
5832   }
5833   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_SET_HANDLE,
5834                             (void*)&hFile);
5835   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
5836   Tcl_AppendResult(interp, z, (char*)0);
5837   return TCL_OK;
5838 }
5839 #endif
5840 
5841 /*
5842 ** tclcmd:   file_control_persist_wal DB PERSIST-FLAG
5843 **
5844 ** This TCL command runs the sqlite3_file_control interface with
5845 ** the SQLITE_FCNTL_PERSIST_WAL opcode.
5846 */
5847 static int SQLITE_TCLAPI file_control_persist_wal(
5848   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5849   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5850   int objc,              /* Number of arguments */
5851   Tcl_Obj *CONST objv[]  /* Command arguments */
5852 ){
5853   sqlite3 *db;
5854   int rc;
5855   int bPersist;
5856   char z[100];
5857 
5858   if( objc!=3 ){
5859     Tcl_AppendResult(interp, "wrong # args: should be \"",
5860         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
5861     return TCL_ERROR;
5862   }
5863   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5864     return TCL_ERROR;
5865   }
5866   if( Tcl_GetIntFromObj(interp, objv[2], &bPersist) ) return TCL_ERROR;
5867   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_PERSIST_WAL, (void*)&bPersist);
5868   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, bPersist);
5869   Tcl_AppendResult(interp, z, (char*)0);
5870   return TCL_OK;
5871 }
5872 
5873 /*
5874 ** tclcmd:   file_control_powersafe_overwrite DB PSOW-FLAG
5875 **
5876 ** This TCL command runs the sqlite3_file_control interface with
5877 ** the SQLITE_FCNTL_POWERSAFE_OVERWRITE opcode.
5878 */
5879 static int SQLITE_TCLAPI file_control_powersafe_overwrite(
5880   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5881   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5882   int objc,              /* Number of arguments */
5883   Tcl_Obj *CONST objv[]  /* Command arguments */
5884 ){
5885   sqlite3 *db;
5886   int rc;
5887   int b;
5888   char z[100];
5889 
5890   if( objc!=3 ){
5891     Tcl_AppendResult(interp, "wrong # args: should be \"",
5892         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
5893     return TCL_ERROR;
5894   }
5895   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5896     return TCL_ERROR;
5897   }
5898   if( Tcl_GetIntFromObj(interp, objv[2], &b) ) return TCL_ERROR;
5899   rc = sqlite3_file_control(db,NULL,SQLITE_FCNTL_POWERSAFE_OVERWRITE,(void*)&b);
5900   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, b);
5901   Tcl_AppendResult(interp, z, (char*)0);
5902   return TCL_OK;
5903 }
5904 
5905 
5906 /*
5907 ** tclcmd:   file_control_vfsname DB ?AUXDB?
5908 **
5909 ** Return a string that describes the stack of VFSes.
5910 */
5911 static int SQLITE_TCLAPI file_control_vfsname(
5912   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5913   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5914   int objc,              /* Number of arguments */
5915   Tcl_Obj *CONST objv[]  /* Command arguments */
5916 ){
5917   sqlite3 *db;
5918   const char *zDbName = "main";
5919   char *zVfsName = 0;
5920 
5921   if( objc!=2 && objc!=3 ){
5922     Tcl_AppendResult(interp, "wrong # args: should be \"",
5923         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
5924     return TCL_ERROR;
5925   }
5926   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5927     return TCL_ERROR;
5928   }
5929   if( objc==3 ){
5930     zDbName = Tcl_GetString(objv[2]);
5931   }
5932   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_VFSNAME,(void*)&zVfsName);
5933   Tcl_AppendResult(interp, zVfsName, (char*)0);
5934   sqlite3_free(zVfsName);
5935   return TCL_OK;
5936 }
5937 
5938 /*
5939 ** tclcmd:   file_control_tempfilename DB ?AUXDB?
5940 **
5941 ** Return a string that is a temporary filename
5942 */
5943 static int SQLITE_TCLAPI file_control_tempfilename(
5944   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5945   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5946   int objc,              /* Number of arguments */
5947   Tcl_Obj *CONST objv[]  /* Command arguments */
5948 ){
5949   sqlite3 *db;
5950   const char *zDbName = "main";
5951   char *zTName = 0;
5952 
5953   if( objc!=2 && objc!=3 ){
5954     Tcl_AppendResult(interp, "wrong # args: should be \"",
5955         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
5956     return TCL_ERROR;
5957   }
5958   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5959     return TCL_ERROR;
5960   }
5961   if( objc==3 ){
5962     zDbName = Tcl_GetString(objv[2]);
5963   }
5964   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_TEMPFILENAME, (void*)&zTName);
5965   Tcl_AppendResult(interp, zTName, (char*)0);
5966   sqlite3_free(zTName);
5967   return TCL_OK;
5968 }
5969 
5970 
5971 /*
5972 ** tclcmd:   sqlite3_vfs_list
5973 **
5974 **   Return a tcl list containing the names of all registered vfs's.
5975 */
5976 static int SQLITE_TCLAPI vfs_list(
5977   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5978   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5979   int objc,              /* Number of arguments */
5980   Tcl_Obj *CONST objv[]  /* Command arguments */
5981 ){
5982   sqlite3_vfs *pVfs;
5983   Tcl_Obj *pRet = Tcl_NewObj();
5984   if( objc!=1 ){
5985     Tcl_WrongNumArgs(interp, 1, objv, "");
5986     return TCL_ERROR;
5987   }
5988   for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
5989     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(pVfs->zName, -1));
5990   }
5991   Tcl_SetObjResult(interp, pRet);
5992   return TCL_OK;
5993 }
5994 
5995 /*
5996 ** tclcmd:   sqlite3_limit DB ID VALUE
5997 **
5998 ** This TCL command runs the sqlite3_limit interface and
5999 ** verifies correct operation of the same.
6000 */
6001 static int SQLITE_TCLAPI test_limit(
6002   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6003   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6004   int objc,              /* Number of arguments */
6005   Tcl_Obj *CONST objv[]  /* Command arguments */
6006 ){
6007   sqlite3 *db;
6008   int rc;
6009   static const struct {
6010      char *zName;
6011      int id;
6012   } aId[] = {
6013     { "SQLITE_LIMIT_LENGTH",              SQLITE_LIMIT_LENGTH               },
6014     { "SQLITE_LIMIT_SQL_LENGTH",          SQLITE_LIMIT_SQL_LENGTH           },
6015     { "SQLITE_LIMIT_COLUMN",              SQLITE_LIMIT_COLUMN               },
6016     { "SQLITE_LIMIT_EXPR_DEPTH",          SQLITE_LIMIT_EXPR_DEPTH           },
6017     { "SQLITE_LIMIT_COMPOUND_SELECT",     SQLITE_LIMIT_COMPOUND_SELECT      },
6018     { "SQLITE_LIMIT_VDBE_OP",             SQLITE_LIMIT_VDBE_OP              },
6019     { "SQLITE_LIMIT_FUNCTION_ARG",        SQLITE_LIMIT_FUNCTION_ARG         },
6020     { "SQLITE_LIMIT_ATTACHED",            SQLITE_LIMIT_ATTACHED             },
6021     { "SQLITE_LIMIT_LIKE_PATTERN_LENGTH", SQLITE_LIMIT_LIKE_PATTERN_LENGTH  },
6022     { "SQLITE_LIMIT_VARIABLE_NUMBER",     SQLITE_LIMIT_VARIABLE_NUMBER      },
6023     { "SQLITE_LIMIT_TRIGGER_DEPTH",       SQLITE_LIMIT_TRIGGER_DEPTH        },
6024     { "SQLITE_LIMIT_WORKER_THREADS",      SQLITE_LIMIT_WORKER_THREADS       },
6025 
6026     /* Out of range test cases */
6027     { "SQLITE_LIMIT_TOOSMALL",            -1,                               },
6028     { "SQLITE_LIMIT_TOOBIG",              SQLITE_LIMIT_WORKER_THREADS+1     },
6029   };
6030   int i, id = 0;
6031   int val;
6032   const char *zId;
6033 
6034   if( objc!=4 ){
6035     Tcl_AppendResult(interp, "wrong # args: should be \"",
6036         Tcl_GetStringFromObj(objv[0], 0), " DB ID VALUE", 0);
6037     return TCL_ERROR;
6038   }
6039   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6040   zId = Tcl_GetString(objv[2]);
6041   for(i=0; i<sizeof(aId)/sizeof(aId[0]); i++){
6042     if( strcmp(zId, aId[i].zName)==0 ){
6043       id = aId[i].id;
6044       break;
6045     }
6046   }
6047   if( i>=sizeof(aId)/sizeof(aId[0]) ){
6048     Tcl_AppendResult(interp, "unknown limit type: ", zId, (char*)0);
6049     return TCL_ERROR;
6050   }
6051   if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
6052   rc = sqlite3_limit(db, id, val);
6053   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
6054   return TCL_OK;
6055 }
6056 
6057 /*
6058 ** tclcmd:  save_prng_state
6059 **
6060 ** Save the state of the pseudo-random number generator.
6061 ** At the same time, verify that sqlite3_test_control works even when
6062 ** called with an out-of-range opcode.
6063 */
6064 static int SQLITE_TCLAPI save_prng_state(
6065   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6066   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6067   int objc,              /* Number of arguments */
6068   Tcl_Obj *CONST objv[]  /* Command arguments */
6069 ){
6070   int rc = sqlite3_test_control(9999);
6071   assert( rc==0 );
6072   rc = sqlite3_test_control(-1);
6073   assert( rc==0 );
6074   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SAVE);
6075   return TCL_OK;
6076 }
6077 /*
6078 ** tclcmd:  restore_prng_state
6079 */
6080 static int SQLITE_TCLAPI restore_prng_state(
6081   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6082   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6083   int objc,              /* Number of arguments */
6084   Tcl_Obj *CONST objv[]  /* Command arguments */
6085 ){
6086   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESTORE);
6087   return TCL_OK;
6088 }
6089 /*
6090 ** tclcmd:  reset_prng_state
6091 */
6092 static int SQLITE_TCLAPI reset_prng_state(
6093   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6094   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6095   int objc,              /* Number of arguments */
6096   Tcl_Obj *CONST objv[]  /* Command arguments */
6097 ){
6098   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESET);
6099   return TCL_OK;
6100 }
6101 
6102 /*
6103 ** tclcmd:  database_may_be_corrupt
6104 **
6105 ** Indicate that database files might be corrupt.  In other words, set the normal
6106 ** state of operation.
6107 */
6108 static int SQLITE_TCLAPI database_may_be_corrupt(
6109   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6110   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6111   int objc,              /* Number of arguments */
6112   Tcl_Obj *CONST objv[]  /* Command arguments */
6113 ){
6114   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 0);
6115   return TCL_OK;
6116 }
6117 /*
6118 ** tclcmd:  database_never_corrupt
6119 **
6120 ** Indicate that database files are always well-formed.  This enables extra assert()
6121 ** statements that test conditions that are always true for well-formed databases.
6122 */
6123 static int SQLITE_TCLAPI database_never_corrupt(
6124   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6125   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6126   int objc,              /* Number of arguments */
6127   Tcl_Obj *CONST objv[]  /* Command arguments */
6128 ){
6129   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 1);
6130   return TCL_OK;
6131 }
6132 
6133 /*
6134 ** tclcmd:  pcache_stats
6135 */
6136 static int SQLITE_TCLAPI test_pcache_stats(
6137   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
6138   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6139   int objc,              /* Number of arguments */
6140   Tcl_Obj *CONST objv[]  /* Command arguments */
6141 ){
6142   int nMin;
6143   int nMax;
6144   int nCurrent;
6145   int nRecyclable;
6146   Tcl_Obj *pRet;
6147 
6148   sqlite3PcacheStats(&nCurrent, &nMax, &nMin, &nRecyclable);
6149 
6150   pRet = Tcl_NewObj();
6151   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("current", -1));
6152   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCurrent));
6153   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("max", -1));
6154   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMax));
6155   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("min", -1));
6156   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMin));
6157   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("recyclable", -1));
6158   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nRecyclable));
6159 
6160   Tcl_SetObjResult(interp, pRet);
6161 
6162   return TCL_OK;
6163 }
6164 
6165 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6166 static void test_unlock_notify_cb(void **aArg, int nArg){
6167   int ii;
6168   for(ii=0; ii<nArg; ii++){
6169     Tcl_EvalEx((Tcl_Interp *)aArg[ii], "unlock_notify", -1, TCL_EVAL_GLOBAL);
6170   }
6171 }
6172 #endif /* SQLITE_ENABLE_UNLOCK_NOTIFY */
6173 
6174 /*
6175 ** tclcmd:  sqlite3_unlock_notify db
6176 */
6177 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6178 static int SQLITE_TCLAPI test_unlock_notify(
6179   ClientData clientData, /* Unused */
6180   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6181   int objc,              /* Number of arguments */
6182   Tcl_Obj *CONST objv[]  /* Command arguments */
6183 ){
6184   sqlite3 *db;
6185   int rc;
6186 
6187   if( objc!=2 ){
6188     Tcl_WrongNumArgs(interp, 1, objv, "DB");
6189     return TCL_ERROR;
6190   }
6191 
6192   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6193     return TCL_ERROR;
6194   }
6195   rc = sqlite3_unlock_notify(db, test_unlock_notify_cb, (void *)interp);
6196   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6197   return TCL_OK;
6198 }
6199 #endif
6200 
6201 /*
6202 ** tclcmd:  sqlite3_wal_checkpoint db ?NAME?
6203 */
6204 static int SQLITE_TCLAPI test_wal_checkpoint(
6205   ClientData clientData, /* Unused */
6206   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6207   int objc,              /* Number of arguments */
6208   Tcl_Obj *CONST objv[]  /* Command arguments */
6209 ){
6210   char *zDb = 0;
6211   sqlite3 *db;
6212   int rc;
6213 
6214   if( objc!=3 && objc!=2 ){
6215     Tcl_WrongNumArgs(interp, 1, objv, "DB ?NAME?");
6216     return TCL_ERROR;
6217   }
6218 
6219   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6220     return TCL_ERROR;
6221   }
6222   if( objc==3 ){
6223     zDb = Tcl_GetString(objv[2]);
6224   }
6225   rc = sqlite3_wal_checkpoint(db, zDb);
6226   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6227   return TCL_OK;
6228 }
6229 
6230 /*
6231 ** tclcmd:  sqlite3_wal_checkpoint_v2 db MODE ?NAME?
6232 **
6233 ** This command calls the wal_checkpoint_v2() function with the specified
6234 ** mode argument (passive, full or restart). If present, the database name
6235 ** NAME is passed as the second argument to wal_checkpoint_v2(). If it the
6236 ** NAME argument is not present, a NULL pointer is passed instead.
6237 **
6238 ** If wal_checkpoint_v2() returns any value other than SQLITE_BUSY or
6239 ** SQLITE_OK, then this command returns TCL_ERROR. The Tcl result is set
6240 ** to the error message obtained from sqlite3_errmsg().
6241 **
6242 ** Otherwise, this command returns a list of three integers. The first integer
6243 ** is 1 if SQLITE_BUSY was returned, or 0 otherwise. The following two integers
6244 ** are the values returned via the output parameters by wal_checkpoint_v2() -
6245 ** the number of frames in the log and the number of frames in the log
6246 ** that have been checkpointed.
6247 */
6248 static int SQLITE_TCLAPI test_wal_checkpoint_v2(
6249   ClientData clientData, /* Unused */
6250   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6251   int objc,              /* Number of arguments */
6252   Tcl_Obj *CONST objv[]  /* Command arguments */
6253 ){
6254   char *zDb = 0;
6255   sqlite3 *db;
6256   int rc;
6257 
6258   int eMode;
6259   int nLog = -555;
6260   int nCkpt = -555;
6261   Tcl_Obj *pRet;
6262 
6263   const char * aMode[] = { "passive", "full", "restart", "truncate", 0 };
6264   assert( SQLITE_CHECKPOINT_PASSIVE==0 );
6265   assert( SQLITE_CHECKPOINT_FULL==1 );
6266   assert( SQLITE_CHECKPOINT_RESTART==2 );
6267   assert( SQLITE_CHECKPOINT_TRUNCATE==3 );
6268 
6269   if( objc!=3 && objc!=4 ){
6270     Tcl_WrongNumArgs(interp, 1, objv, "DB MODE ?NAME?");
6271     return TCL_ERROR;
6272   }
6273 
6274   if( objc==4 ){
6275     zDb = Tcl_GetString(objv[3]);
6276   }
6277   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) || (
6278       TCL_OK!=Tcl_GetIntFromObj(0, objv[2], &eMode)
6279    && TCL_OK!=Tcl_GetIndexFromObj(interp, objv[2], aMode, "mode", 0, &eMode)
6280   )){
6281     return TCL_ERROR;
6282   }
6283 
6284   rc = sqlite3_wal_checkpoint_v2(db, zDb, eMode, &nLog, &nCkpt);
6285   if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){
6286     const char *zErrCode = sqlite3ErrName(rc);
6287     Tcl_ResetResult(interp);
6288     Tcl_AppendResult(interp, zErrCode, " - ", (char *)sqlite3_errmsg(db), 0);
6289     return TCL_ERROR;
6290   }
6291 
6292   pRet = Tcl_NewObj();
6293   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(rc==SQLITE_BUSY?1:0));
6294   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nLog));
6295   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCkpt));
6296   Tcl_SetObjResult(interp, pRet);
6297 
6298   return TCL_OK;
6299 }
6300 
6301 /*
6302 ** tclcmd:  sqlite3_wal_autocheckpoint db VALUE
6303 */
6304 static int SQLITE_TCLAPI test_wal_autocheckpoint(
6305   ClientData clientData, /* Unused */
6306   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6307   int objc,              /* Number of arguments */
6308   Tcl_Obj *CONST objv[]  /* Command arguments */
6309 ){
6310   sqlite3 *db;
6311   int rc;
6312   int iVal;
6313 
6314 
6315   if( objc!=3 ){
6316     Tcl_WrongNumArgs(interp, 1, objv, "DB VALUE");
6317     return TCL_ERROR;
6318   }
6319 
6320   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
6321    || Tcl_GetIntFromObj(0, objv[2], &iVal)
6322   ){
6323     return TCL_ERROR;
6324   }
6325 
6326   rc = sqlite3_wal_autocheckpoint(db, iVal);
6327   Tcl_ResetResult(interp);
6328   if( rc!=SQLITE_OK ){
6329     const char *zErrCode = sqlite3ErrName(rc);
6330     Tcl_SetObjResult(interp, Tcl_NewStringObj(zErrCode, -1));
6331     return TCL_ERROR;
6332   }
6333 
6334   return TCL_OK;
6335 }
6336 
6337 
6338 /*
6339 ** tclcmd:  test_sqlite3_log ?SCRIPT?
6340 */
6341 static struct LogCallback {
6342   Tcl_Interp *pInterp;
6343   Tcl_Obj *pObj;
6344 } logcallback = {0, 0};
6345 static void xLogcallback(void *unused, int err, char *zMsg){
6346   Tcl_Obj *pNew = Tcl_DuplicateObj(logcallback.pObj);
6347   Tcl_IncrRefCount(pNew);
6348   Tcl_ListObjAppendElement(
6349       0, pNew, Tcl_NewStringObj(sqlite3ErrName(err), -1)
6350   );
6351   Tcl_ListObjAppendElement(0, pNew, Tcl_NewStringObj(zMsg, -1));
6352   Tcl_EvalObjEx(logcallback.pInterp, pNew, TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT);
6353   Tcl_DecrRefCount(pNew);
6354 }
6355 static int SQLITE_TCLAPI test_sqlite3_log(
6356   ClientData clientData,
6357   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6358   int objc,              /* Number of arguments */
6359   Tcl_Obj *CONST objv[]  /* Command arguments */
6360 ){
6361   if( objc>2 ){
6362     Tcl_WrongNumArgs(interp, 1, objv, "SCRIPT");
6363     return TCL_ERROR;
6364   }
6365   if( logcallback.pObj ){
6366     Tcl_DecrRefCount(logcallback.pObj);
6367     logcallback.pObj = 0;
6368     logcallback.pInterp = 0;
6369     sqlite3_config(SQLITE_CONFIG_LOG, (void*)0, (void*)0);
6370   }
6371   if( objc>1 ){
6372     logcallback.pObj = objv[1];
6373     Tcl_IncrRefCount(logcallback.pObj);
6374     logcallback.pInterp = interp;
6375     sqlite3_config(SQLITE_CONFIG_LOG, xLogcallback, (void*)0);
6376   }
6377   return TCL_OK;
6378 }
6379 
6380 /*
6381 **     tcl_objproc COMMANDNAME ARGS...
6382 **
6383 ** Run a TCL command using its objProc interface.  Throw an error if
6384 ** the command has no objProc interface.
6385 */
6386 static int SQLITE_TCLAPI runAsObjProc(
6387   void * clientData,
6388   Tcl_Interp *interp,
6389   int objc,
6390   Tcl_Obj *CONST objv[]
6391 ){
6392   Tcl_CmdInfo cmdInfo;
6393   if( objc<2 ){
6394     Tcl_WrongNumArgs(interp, 1, objv, "COMMAND ...");
6395     return TCL_ERROR;
6396   }
6397   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
6398     Tcl_AppendResult(interp, "command not found: ",
6399            Tcl_GetString(objv[1]), (char*)0);
6400     return TCL_ERROR;
6401   }
6402   if( cmdInfo.objProc==0 ){
6403     Tcl_AppendResult(interp, "command has no objProc: ",
6404            Tcl_GetString(objv[1]), (char*)0);
6405     return TCL_ERROR;
6406   }
6407   return cmdInfo.objProc(cmdInfo.objClientData, interp, objc-1, objv+1);
6408 }
6409 
6410 #ifndef SQLITE_OMIT_EXPLAIN
6411 /*
6412 ** WARNING: The following function, printExplainQueryPlan() is an exact
6413 ** copy of example code from eqp.in (eqp.html). If this code is modified,
6414 ** then the documentation copy needs to be modified as well.
6415 */
6416 /*
6417 ** Argument pStmt is a prepared SQL statement. This function compiles
6418 ** an EXPLAIN QUERY PLAN command to report on the prepared statement,
6419 ** and prints the report to stdout using printf().
6420 */
6421 int printExplainQueryPlan(sqlite3_stmt *pStmt){
6422   const char *zSql;               /* Input SQL */
6423   char *zExplain;                 /* SQL with EXPLAIN QUERY PLAN prepended */
6424   sqlite3_stmt *pExplain;         /* Compiled EXPLAIN QUERY PLAN command */
6425   int rc;                         /* Return code from sqlite3_prepare_v2() */
6426 
6427   zSql = sqlite3_sql(pStmt);
6428   if( zSql==0 ) return SQLITE_ERROR;
6429 
6430   zExplain = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", zSql);
6431   if( zExplain==0 ) return SQLITE_NOMEM;
6432 
6433   rc = sqlite3_prepare_v2(sqlite3_db_handle(pStmt), zExplain, -1, &pExplain, 0);
6434   sqlite3_free(zExplain);
6435   if( rc!=SQLITE_OK ) return rc;
6436 
6437   while( SQLITE_ROW==sqlite3_step(pExplain) ){
6438     int iSelectid = sqlite3_column_int(pExplain, 0);
6439     int iOrder = sqlite3_column_int(pExplain, 1);
6440     int iFrom = sqlite3_column_int(pExplain, 2);
6441     const char *zDetail = (const char *)sqlite3_column_text(pExplain, 3);
6442 
6443     printf("%d %d %d %s\n", iSelectid, iOrder, iFrom, zDetail);
6444   }
6445 
6446   return sqlite3_finalize(pExplain);
6447 }
6448 
6449 static int SQLITE_TCLAPI test_print_eqp(
6450   void * clientData,
6451   Tcl_Interp *interp,
6452   int objc,
6453   Tcl_Obj *CONST objv[]
6454 ){
6455   int rc;
6456   sqlite3_stmt *pStmt;
6457 
6458   if( objc!=2 ){
6459     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
6460     return TCL_ERROR;
6461   }
6462   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
6463   rc = printExplainQueryPlan(pStmt);
6464   /* This is needed on Windows so that a test case using this
6465   ** function can open a read pipe and get the output of
6466   ** printExplainQueryPlan() immediately.
6467   */
6468   fflush(stdout);
6469   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
6470   return TCL_OK;
6471 }
6472 #endif /* SQLITE_OMIT_EXPLAIN */
6473 
6474 /*
6475 ** sqlite3_test_control VERB ARGS...
6476 */
6477 static int SQLITE_TCLAPI test_test_control(
6478   void * clientData,
6479   Tcl_Interp *interp,
6480   int objc,
6481   Tcl_Obj *CONST objv[]
6482 ){
6483   struct Verb {
6484     const char *zName;
6485     int i;
6486   } aVerb[] = {
6487     { "SQLITE_TESTCTRL_LOCALTIME_FAULT", SQLITE_TESTCTRL_LOCALTIME_FAULT },
6488     { "SQLITE_TESTCTRL_SORTER_MMAP",     SQLITE_TESTCTRL_SORTER_MMAP     },
6489     { "SQLITE_TESTCTRL_IMPOSTER",        SQLITE_TESTCTRL_IMPOSTER        },
6490   };
6491   int iVerb;
6492   int iFlag;
6493   int rc;
6494 
6495   if( objc<2 ){
6496     Tcl_WrongNumArgs(interp, 1, objv, "VERB ARGS...");
6497     return TCL_ERROR;
6498   }
6499 
6500   rc = Tcl_GetIndexFromObjStruct(
6501       interp, objv[1], aVerb, sizeof(aVerb[0]), "VERB", 0, &iVerb
6502   );
6503   if( rc!=TCL_OK ) return rc;
6504 
6505   iFlag = aVerb[iVerb].i;
6506   switch( iFlag ){
6507     case SQLITE_TESTCTRL_LOCALTIME_FAULT: {
6508       int val;
6509       if( objc!=3 ){
6510         Tcl_WrongNumArgs(interp, 2, objv, "ONOFF");
6511         return TCL_ERROR;
6512       }
6513       if( Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
6514       sqlite3_test_control(SQLITE_TESTCTRL_LOCALTIME_FAULT, val);
6515       break;
6516     }
6517 
6518     case SQLITE_TESTCTRL_SORTER_MMAP: {
6519       int val;
6520       sqlite3 *db;
6521       if( objc!=4 ){
6522         Tcl_WrongNumArgs(interp, 2, objv, "DB LIMIT");
6523         return TCL_ERROR;
6524       }
6525       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
6526       if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
6527       sqlite3_test_control(SQLITE_TESTCTRL_SORTER_MMAP, db, val);
6528       break;
6529     }
6530 
6531     case SQLITE_TESTCTRL_IMPOSTER: {
6532       int onOff, tnum;
6533       const char *zDbName;
6534       sqlite3 *db;
6535       if( objc!=6 ){
6536         Tcl_WrongNumArgs(interp, 2, objv, "DB dbName onOff tnum");
6537         return TCL_ERROR;
6538       }
6539       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
6540       zDbName = Tcl_GetString(objv[3]);
6541       if( Tcl_GetIntFromObj(interp, objv[4], &onOff) ) return TCL_ERROR;
6542       if( Tcl_GetIntFromObj(interp, objv[5], &tnum) ) return TCL_ERROR;
6543       sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, zDbName, onOff, tnum);
6544       break;
6545     }
6546   }
6547 
6548   Tcl_ResetResult(interp);
6549   return TCL_OK;
6550 }
6551 
6552 #if SQLITE_OS_UNIX
6553 #include <sys/time.h>
6554 #include <sys/resource.h>
6555 
6556 static int SQLITE_TCLAPI test_getrusage(
6557   void * clientData,
6558   Tcl_Interp *interp,
6559   int objc,
6560   Tcl_Obj *CONST objv[]
6561 ){
6562   char buf[1024];
6563   struct rusage r;
6564   memset(&r, 0, sizeof(r));
6565   getrusage(RUSAGE_SELF, &r);
6566 
6567   sqlite3_snprintf(sizeof(buf), buf,
6568     "ru_utime=%d.%06d ru_stime=%d.%06d ru_minflt=%d ru_majflt=%d",
6569     (int)r.ru_utime.tv_sec, (int)r.ru_utime.tv_usec,
6570     (int)r.ru_stime.tv_sec, (int)r.ru_stime.tv_usec,
6571     (int)r.ru_minflt, (int)r.ru_majflt
6572   );
6573   Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, -1));
6574   return TCL_OK;
6575 }
6576 #endif
6577 
6578 #if SQLITE_OS_WIN
6579 /*
6580 ** Information passed from the main thread into the windows file locker
6581 ** background thread.
6582 */
6583 struct win32FileLocker {
6584   char *evName;       /* Name of event to signal thread startup */
6585   HANDLE h;           /* Handle of the file to be locked */
6586   int delay1;         /* Delay before locking */
6587   int delay2;         /* Delay before unlocking */
6588   int ok;             /* Finished ok */
6589   int err;            /* True if an error occurs */
6590 };
6591 #endif
6592 
6593 
6594 #if SQLITE_OS_WIN
6595 #include <process.h>
6596 /*
6597 ** The background thread that does file locking.
6598 */
6599 static void SQLITE_CDECL win32_file_locker(void *pAppData){
6600   struct win32FileLocker *p = (struct win32FileLocker*)pAppData;
6601   if( p->evName ){
6602     HANDLE ev = OpenEvent(EVENT_MODIFY_STATE, FALSE, p->evName);
6603     if ( ev ){
6604       SetEvent(ev);
6605       CloseHandle(ev);
6606     }
6607   }
6608   if( p->delay1 ) Sleep(p->delay1);
6609   if( LockFile(p->h, 0, 0, 100000000, 0) ){
6610     Sleep(p->delay2);
6611     UnlockFile(p->h, 0, 0, 100000000, 0);
6612     p->ok = 1;
6613   }else{
6614     p->err = 1;
6615   }
6616   CloseHandle(p->h);
6617   p->h = 0;
6618   p->delay1 = 0;
6619   p->delay2 = 0;
6620 }
6621 #endif
6622 
6623 #if SQLITE_OS_WIN
6624 /*
6625 **      lock_win32_file FILENAME DELAY1 DELAY2
6626 **
6627 ** Get an exclusive manditory lock on file for DELAY2 milliseconds.
6628 ** Wait DELAY1 milliseconds before acquiring the lock.
6629 */
6630 static int SQLITE_TCLAPI win32_file_lock(
6631   void * clientData,
6632   Tcl_Interp *interp,
6633   int objc,
6634   Tcl_Obj *CONST objv[]
6635 ){
6636   static struct win32FileLocker x = { "win32_file_lock", 0, 0, 0, 0, 0 };
6637   const char *zFilename;
6638   char zBuf[200];
6639   int retry = 0;
6640   HANDLE ev;
6641   DWORD wResult;
6642 
6643   if( objc!=4 && objc!=1 ){
6644     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME DELAY1 DELAY2");
6645     return TCL_ERROR;
6646   }
6647   if( objc==1 ){
6648     sqlite3_snprintf(sizeof(zBuf), zBuf, "%d %d %d %d %d",
6649                      x.ok, x.err, x.delay1, x.delay2, x.h);
6650     Tcl_AppendResult(interp, zBuf, (char*)0);
6651     return TCL_OK;
6652   }
6653   while( x.h && retry<30 ){
6654     retry++;
6655     Sleep(100);
6656   }
6657   if( x.h ){
6658     Tcl_AppendResult(interp, "busy", (char*)0);
6659     return TCL_ERROR;
6660   }
6661   if( Tcl_GetIntFromObj(interp, objv[2], &x.delay1) ) return TCL_ERROR;
6662   if( Tcl_GetIntFromObj(interp, objv[3], &x.delay2) ) return TCL_ERROR;
6663   zFilename = Tcl_GetString(objv[1]);
6664   x.h = CreateFile(zFilename, GENERIC_READ|GENERIC_WRITE,
6665               FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_ALWAYS,
6666               FILE_ATTRIBUTE_NORMAL, 0);
6667   if( !x.h ){
6668     Tcl_AppendResult(interp, "cannot open file: ", zFilename, (char*)0);
6669     return TCL_ERROR;
6670   }
6671   ev = CreateEvent(NULL, TRUE, FALSE, x.evName);
6672   if ( !ev ){
6673     Tcl_AppendResult(interp, "cannot create event: ", x.evName, (char*)0);
6674     return TCL_ERROR;
6675   }
6676   _beginthread(win32_file_locker, 0, (void*)&x);
6677   Sleep(0);
6678   if ( (wResult = WaitForSingleObject(ev, 10000))!=WAIT_OBJECT_0 ){
6679     sqlite3_snprintf(sizeof(zBuf), zBuf, "0x%x", wResult);
6680     Tcl_AppendResult(interp, "wait failed: ", zBuf, (char*)0);
6681     CloseHandle(ev);
6682     return TCL_ERROR;
6683   }
6684   CloseHandle(ev);
6685   return TCL_OK;
6686 }
6687 
6688 /*
6689 **      exists_win32_path PATH
6690 **
6691 ** Returns non-zero if the specified path exists, whose fully qualified name
6692 ** may exceed 260 characters if it is prefixed with "\\?\".
6693 */
6694 static int SQLITE_TCLAPI win32_exists_path(
6695   void *clientData,
6696   Tcl_Interp *interp,
6697   int objc,
6698   Tcl_Obj *CONST objv[]
6699 ){
6700   if( objc!=2 ){
6701     Tcl_WrongNumArgs(interp, 1, objv, "PATH");
6702     return TCL_ERROR;
6703   }
6704   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(
6705       GetFileAttributesW( Tcl_GetUnicode(objv[1]))!=INVALID_FILE_ATTRIBUTES ));
6706   return TCL_OK;
6707 }
6708 
6709 /*
6710 **      find_win32_file PATTERN
6711 **
6712 ** Returns a list of entries in a directory that match the specified pattern,
6713 ** whose fully qualified name may exceed 248 characters if it is prefixed with
6714 ** "\\?\".
6715 */
6716 static int SQLITE_TCLAPI win32_find_file(
6717   void *clientData,
6718   Tcl_Interp *interp,
6719   int objc,
6720   Tcl_Obj *CONST objv[]
6721 ){
6722   HANDLE hFindFile = INVALID_HANDLE_VALUE;
6723   WIN32_FIND_DATAW findData;
6724   Tcl_Obj *listObj;
6725   DWORD lastErrno;
6726   if( objc!=2 ){
6727     Tcl_WrongNumArgs(interp, 1, objv, "PATTERN");
6728     return TCL_ERROR;
6729   }
6730   hFindFile = FindFirstFileW(Tcl_GetUnicode(objv[1]), &findData);
6731   if( hFindFile==INVALID_HANDLE_VALUE ){
6732     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6733     return TCL_ERROR;
6734   }
6735   listObj = Tcl_NewObj();
6736   Tcl_IncrRefCount(listObj);
6737   do {
6738     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewUnicodeObj(
6739         findData.cFileName, -1));
6740     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewWideIntObj(
6741         findData.dwFileAttributes));
6742   } while( FindNextFileW(hFindFile, &findData) );
6743   lastErrno = GetLastError();
6744   if( lastErrno!=NO_ERROR && lastErrno!=ERROR_NO_MORE_FILES ){
6745     FindClose(hFindFile);
6746     Tcl_DecrRefCount(listObj);
6747     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6748     return TCL_ERROR;
6749   }
6750   FindClose(hFindFile);
6751   Tcl_SetObjResult(interp, listObj);
6752   return TCL_OK;
6753 }
6754 
6755 /*
6756 **      delete_win32_file FILENAME
6757 **
6758 ** Deletes the specified file, whose fully qualified name may exceed 260
6759 ** characters if it is prefixed with "\\?\".
6760 */
6761 static int SQLITE_TCLAPI win32_delete_file(
6762   void *clientData,
6763   Tcl_Interp *interp,
6764   int objc,
6765   Tcl_Obj *CONST objv[]
6766 ){
6767   if( objc!=2 ){
6768     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME");
6769     return TCL_ERROR;
6770   }
6771   if( !DeleteFileW(Tcl_GetUnicode(objv[1])) ){
6772     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6773     return TCL_ERROR;
6774   }
6775   Tcl_ResetResult(interp);
6776   return TCL_OK;
6777 }
6778 
6779 /*
6780 **      make_win32_dir DIRECTORY
6781 **
6782 ** Creates the specified directory, whose fully qualified name may exceed 248
6783 ** characters if it is prefixed with "\\?\".
6784 */
6785 static int SQLITE_TCLAPI win32_mkdir(
6786   void *clientData,
6787   Tcl_Interp *interp,
6788   int objc,
6789   Tcl_Obj *CONST objv[]
6790 ){
6791   if( objc!=2 ){
6792     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
6793     return TCL_ERROR;
6794   }
6795   if( !CreateDirectoryW(Tcl_GetUnicode(objv[1]), NULL) ){
6796     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6797     return TCL_ERROR;
6798   }
6799   Tcl_ResetResult(interp);
6800   return TCL_OK;
6801 }
6802 
6803 /*
6804 **      remove_win32_dir DIRECTORY
6805 **
6806 ** Removes the specified directory, whose fully qualified name may exceed 248
6807 ** characters if it is prefixed with "\\?\".
6808 */
6809 static int SQLITE_TCLAPI win32_rmdir(
6810   void *clientData,
6811   Tcl_Interp *interp,
6812   int objc,
6813   Tcl_Obj *CONST objv[]
6814 ){
6815   if( objc!=2 ){
6816     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
6817     return TCL_ERROR;
6818   }
6819   if( !RemoveDirectoryW(Tcl_GetUnicode(objv[1])) ){
6820     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6821     return TCL_ERROR;
6822   }
6823   Tcl_ResetResult(interp);
6824   return TCL_OK;
6825 }
6826 #endif
6827 
6828 
6829 /*
6830 **      optimization_control DB OPT BOOLEAN
6831 **
6832 ** Enable or disable query optimizations using the sqlite3_test_control()
6833 ** interface.  Disable if BOOLEAN is false and enable if BOOLEAN is true.
6834 ** OPT is the name of the optimization to be disabled.
6835 */
6836 static int SQLITE_TCLAPI optimization_control(
6837   void * clientData,
6838   Tcl_Interp *interp,
6839   int objc,
6840   Tcl_Obj *CONST objv[]
6841 ){
6842   int i;
6843   sqlite3 *db;
6844   const char *zOpt;
6845   int onoff;
6846   int mask = 0;
6847   static const struct {
6848     const char *zOptName;
6849     int mask;
6850   } aOpt[] = {
6851     { "all",                 SQLITE_AllOpts        },
6852     { "none",                0                     },
6853     { "query-flattener",     SQLITE_QueryFlattener },
6854     { "column-cache",        SQLITE_ColumnCache    },
6855     { "groupby-order",       SQLITE_GroupByOrder   },
6856     { "factor-constants",    SQLITE_FactorOutConst },
6857     { "distinct-opt",        SQLITE_DistinctOpt    },
6858     { "cover-idx-scan",      SQLITE_CoverIdxScan   },
6859     { "order-by-idx-join",   SQLITE_OrderByIdxJoin },
6860     { "transitive",          SQLITE_Transitive     },
6861     { "subquery-coroutine",  SQLITE_SubqCoroutine  },
6862     { "omit-noop-join",      SQLITE_OmitNoopJoin   },
6863     { "stat3",               SQLITE_Stat34         },
6864     { "stat4",               SQLITE_Stat34         },
6865   };
6866 
6867   if( objc!=4 ){
6868     Tcl_WrongNumArgs(interp, 1, objv, "DB OPT BOOLEAN");
6869     return TCL_ERROR;
6870   }
6871   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6872   if( Tcl_GetBooleanFromObj(interp, objv[3], &onoff) ) return TCL_ERROR;
6873   zOpt = Tcl_GetString(objv[2]);
6874   for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
6875     if( strcmp(zOpt, aOpt[i].zOptName)==0 ){
6876       mask = aOpt[i].mask;
6877       break;
6878     }
6879   }
6880   if( onoff ) mask = ~mask;
6881   if( i>=sizeof(aOpt)/sizeof(aOpt[0]) ){
6882     Tcl_AppendResult(interp, "unknown optimization - should be one of:",
6883                      (char*)0);
6884     for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
6885       Tcl_AppendResult(interp, " ", aOpt[i].zOptName, (char*)0);
6886     }
6887     return TCL_ERROR;
6888   }
6889   sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, db, mask);
6890   return TCL_OK;
6891 }
6892 
6893 /*
6894 **     load_static_extension DB NAME ...
6895 **
6896 ** Load one or more statically linked extensions.
6897 */
6898 static int SQLITE_TCLAPI tclLoadStaticExtensionCmd(
6899   void * clientData,
6900   Tcl_Interp *interp,
6901   int objc,
6902   Tcl_Obj *CONST objv[]
6903 ){
6904   extern int sqlite3_amatch_init(sqlite3*,char**,const sqlite3_api_routines*);
6905   extern int sqlite3_carray_init(sqlite3*,char**,const sqlite3_api_routines*);
6906   extern int sqlite3_closure_init(sqlite3*,char**,const sqlite3_api_routines*);
6907   extern int sqlite3_csv_init(sqlite3*,char**,const sqlite3_api_routines*);
6908   extern int sqlite3_eval_init(sqlite3*,char**,const sqlite3_api_routines*);
6909   extern int sqlite3_fileio_init(sqlite3*,char**,const sqlite3_api_routines*);
6910   extern int sqlite3_fuzzer_init(sqlite3*,char**,const sqlite3_api_routines*);
6911   extern int sqlite3_ieee_init(sqlite3*,char**,const sqlite3_api_routines*);
6912   extern int sqlite3_nextchar_init(sqlite3*,char**,const sqlite3_api_routines*);
6913   extern int sqlite3_percentile_init(sqlite3*,char**,const sqlite3_api_routines*);
6914   extern int sqlite3_regexp_init(sqlite3*,char**,const sqlite3_api_routines*);
6915   extern int sqlite3_remember_init(sqlite3*,char**,const sqlite3_api_routines*);
6916   extern int sqlite3_series_init(sqlite3*,char**,const sqlite3_api_routines*);
6917   extern int sqlite3_spellfix_init(sqlite3*,char**,const sqlite3_api_routines*);
6918   extern int sqlite3_totype_init(sqlite3*,char**,const sqlite3_api_routines*);
6919   extern int sqlite3_wholenumber_init(sqlite3*,char**,const sqlite3_api_routines*);
6920   static const struct {
6921     const char *zExtName;
6922     int (*pInit)(sqlite3*,char**,const sqlite3_api_routines*);
6923   } aExtension[] = {
6924     { "amatch",                sqlite3_amatch_init               },
6925     { "carray",                sqlite3_carray_init               },
6926     { "closure",               sqlite3_closure_init              },
6927     { "csv",                   sqlite3_csv_init                  },
6928     { "eval",                  sqlite3_eval_init                 },
6929     { "fileio",                sqlite3_fileio_init               },
6930     { "fuzzer",                sqlite3_fuzzer_init               },
6931     { "ieee754",               sqlite3_ieee_init                 },
6932     { "nextchar",              sqlite3_nextchar_init             },
6933     { "percentile",            sqlite3_percentile_init           },
6934     { "regexp",                sqlite3_regexp_init               },
6935     { "remember",              sqlite3_remember_init             },
6936     { "series",                sqlite3_series_init               },
6937     { "spellfix",              sqlite3_spellfix_init             },
6938     { "totype",                sqlite3_totype_init               },
6939     { "wholenumber",           sqlite3_wholenumber_init          },
6940   };
6941   sqlite3 *db;
6942   const char *zName;
6943   int i, j, rc;
6944   char *zErrMsg = 0;
6945   if( objc<3 ){
6946     Tcl_WrongNumArgs(interp, 1, objv, "DB NAME ...");
6947     return TCL_ERROR;
6948   }
6949   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6950   for(j=2; j<objc; j++){
6951     zName = Tcl_GetString(objv[j]);
6952     for(i=0; i<ArraySize(aExtension); i++){
6953       if( strcmp(zName, aExtension[i].zExtName)==0 ) break;
6954     }
6955     if( i>=ArraySize(aExtension) ){
6956       Tcl_AppendResult(interp, "no such extension: ", zName, (char*)0);
6957       return TCL_ERROR;
6958     }
6959     if( aExtension[i].pInit ){
6960       rc = aExtension[i].pInit(db, &zErrMsg, 0);
6961     }else{
6962       rc = SQLITE_OK;
6963     }
6964     if( rc!=SQLITE_OK || zErrMsg ){
6965       Tcl_AppendResult(interp, "initialization of ", zName, " failed: ", zErrMsg,
6966                        (char*)0);
6967       sqlite3_free(zErrMsg);
6968       return TCL_ERROR;
6969     }
6970   }
6971   return TCL_OK;
6972 }
6973 
6974 /*
6975 **     sorter_test_fakeheap BOOL
6976 **
6977 */
6978 static int SQLITE_TCLAPI sorter_test_fakeheap(
6979   void * clientData,
6980   Tcl_Interp *interp,
6981   int objc,
6982   Tcl_Obj *CONST objv[]
6983 ){
6984   int bArg;
6985   if( objc!=2 ){
6986     Tcl_WrongNumArgs(interp, 1, objv, "BOOL");
6987     return TCL_ERROR;
6988   }
6989 
6990   if( Tcl_GetBooleanFromObj(interp, objv[1], &bArg) ){
6991     return TCL_ERROR;
6992   }
6993 
6994   if( bArg ){
6995     if( sqlite3GlobalConfig.pHeap==0 ){
6996       sqlite3GlobalConfig.pHeap = SQLITE_INT_TO_PTR(-1);
6997     }
6998   }else{
6999     if( sqlite3GlobalConfig.pHeap==SQLITE_INT_TO_PTR(-1) ){
7000       sqlite3GlobalConfig.pHeap = 0;
7001     }
7002   }
7003 
7004   Tcl_ResetResult(interp);
7005   return TCL_OK;
7006 }
7007 
7008 /*
7009 **     sorter_test_sort4_helper DB SQL1 NSTEP SQL2
7010 **
7011 ** Compile SQL statement $SQL1 and step it $NSTEP times. For each row,
7012 ** check that the leftmost and rightmost columns returned are both integers,
7013 ** and that both contain the same value.
7014 **
7015 ** Then execute statement $SQL2. Check that the statement returns the same
7016 ** set of integers in the same order as in the previous step (using $SQL1).
7017 */
7018 static int SQLITE_TCLAPI sorter_test_sort4_helper(
7019   void * clientData,
7020   Tcl_Interp *interp,
7021   int objc,
7022   Tcl_Obj *CONST objv[]
7023 ){
7024   const char *zSql1;
7025   const char *zSql2;
7026   int nStep;
7027   int iStep;
7028   unsigned int iCksum1 = 0;
7029   unsigned int iCksum2 = 0;
7030   int rc;
7031   int iB;
7032   sqlite3 *db;
7033   sqlite3_stmt *pStmt;
7034 
7035   if( objc!=5 ){
7036     Tcl_WrongNumArgs(interp, 1, objv, "DB SQL1 NSTEP SQL2");
7037     return TCL_ERROR;
7038   }
7039 
7040   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7041   zSql1 = Tcl_GetString(objv[2]);
7042   if( Tcl_GetIntFromObj(interp, objv[3], &nStep) ) return TCL_ERROR;
7043   zSql2 = Tcl_GetString(objv[4]);
7044 
7045   rc = sqlite3_prepare_v2(db, zSql1, -1, &pStmt, 0);
7046   if( rc!=SQLITE_OK ) goto sql_error;
7047 
7048   iB = sqlite3_column_count(pStmt)-1;
7049   for(iStep=0; iStep<nStep && SQLITE_ROW==sqlite3_step(pStmt); iStep++){
7050     int a = sqlite3_column_int(pStmt, 0);
7051     if( a!=sqlite3_column_int(pStmt, iB) ){
7052       Tcl_AppendResult(interp, "data error: (a!=b)", 0);
7053       return TCL_ERROR;
7054     }
7055 
7056     iCksum1 += (iCksum1 << 3) + (unsigned int)a;
7057   }
7058   rc = sqlite3_finalize(pStmt);
7059   if( rc!=SQLITE_OK ) goto sql_error;
7060 
7061   rc = sqlite3_prepare_v2(db, zSql2, -1, &pStmt, 0);
7062   if( rc!=SQLITE_OK ) goto sql_error;
7063   for(iStep=0; SQLITE_ROW==sqlite3_step(pStmt); iStep++){
7064     int a = sqlite3_column_int(pStmt, 0);
7065     iCksum2 += (iCksum2 << 3) + (unsigned int)a;
7066   }
7067   rc = sqlite3_finalize(pStmt);
7068   if( rc!=SQLITE_OK ) goto sql_error;
7069 
7070   if( iCksum1!=iCksum2 ){
7071     Tcl_AppendResult(interp, "checksum mismatch", 0);
7072     return TCL_ERROR;
7073   }
7074 
7075   return TCL_OK;
7076  sql_error:
7077   Tcl_AppendResult(interp, "sql error: ", sqlite3_errmsg(db), 0);
7078   return TCL_ERROR;
7079 }
7080 
7081 
7082 #ifdef SQLITE_USER_AUTHENTICATION
7083 #include "sqlite3userauth.h"
7084 /*
7085 ** tclcmd:  sqlite3_user_authenticate DB USERNAME PASSWORD
7086 */
7087 static int SQLITE_TCLAPI test_user_authenticate(
7088   ClientData clientData, /* Unused */
7089   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7090   int objc,              /* Number of arguments */
7091   Tcl_Obj *CONST objv[]  /* Command arguments */
7092 ){
7093   char *zUser = 0;
7094   char *zPasswd = 0;
7095   int nPasswd = 0;
7096   sqlite3 *db;
7097   int rc;
7098 
7099   if( objc!=4 ){
7100     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD");
7101     return TCL_ERROR;
7102   }
7103   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7104     return TCL_ERROR;
7105   }
7106   zUser = Tcl_GetString(objv[2]);
7107   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7108   rc = sqlite3_user_authenticate(db, zUser, zPasswd, nPasswd);
7109   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7110   return TCL_OK;
7111 }
7112 #endif /* SQLITE_USER_AUTHENTICATION */
7113 
7114 #ifdef SQLITE_USER_AUTHENTICATION
7115 /*
7116 ** tclcmd:  sqlite3_user_add DB USERNAME PASSWORD ISADMIN
7117 */
7118 static int SQLITE_TCLAPI test_user_add(
7119   ClientData clientData, /* Unused */
7120   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7121   int objc,              /* Number of arguments */
7122   Tcl_Obj *CONST objv[]  /* Command arguments */
7123 ){
7124   char *zUser = 0;
7125   char *zPasswd = 0;
7126   int nPasswd = 0;
7127   int isAdmin = 0;
7128   sqlite3 *db;
7129   int rc;
7130 
7131   if( objc!=5 ){
7132     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
7133     return TCL_ERROR;
7134   }
7135   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7136     return TCL_ERROR;
7137   }
7138   zUser = Tcl_GetString(objv[2]);
7139   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7140   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
7141   rc = sqlite3_user_add(db, zUser, zPasswd, nPasswd, isAdmin);
7142   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7143   return TCL_OK;
7144 }
7145 #endif /* SQLITE_USER_AUTHENTICATION */
7146 
7147 #ifdef SQLITE_USER_AUTHENTICATION
7148 /*
7149 ** tclcmd:  sqlite3_user_change DB USERNAME PASSWORD ISADMIN
7150 */
7151 static int SQLITE_TCLAPI test_user_change(
7152   ClientData clientData, /* Unused */
7153   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7154   int objc,              /* Number of arguments */
7155   Tcl_Obj *CONST objv[]  /* Command arguments */
7156 ){
7157   char *zUser = 0;
7158   char *zPasswd = 0;
7159   int nPasswd = 0;
7160   int isAdmin = 0;
7161   sqlite3 *db;
7162   int rc;
7163 
7164   if( objc!=5 ){
7165     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
7166     return TCL_ERROR;
7167   }
7168   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7169     return TCL_ERROR;
7170   }
7171   zUser = Tcl_GetString(objv[2]);
7172   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
7173   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
7174   rc = sqlite3_user_change(db, zUser, zPasswd, nPasswd, isAdmin);
7175   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7176   return TCL_OK;
7177 }
7178 #endif /* SQLITE_USER_AUTHENTICATION */
7179 
7180 #ifdef SQLITE_USER_AUTHENTICATION
7181 /*
7182 ** tclcmd:  sqlite3_user_delete DB USERNAME
7183 */
7184 static int SQLITE_TCLAPI test_user_delete(
7185   ClientData clientData, /* Unused */
7186   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7187   int objc,              /* Number of arguments */
7188   Tcl_Obj *CONST objv[]  /* Command arguments */
7189 ){
7190   char *zUser = 0;
7191   sqlite3 *db;
7192   int rc;
7193 
7194   if( objc!=3 ){
7195     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME");
7196     return TCL_ERROR;
7197   }
7198   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
7199     return TCL_ERROR;
7200   }
7201   zUser = Tcl_GetString(objv[2]);
7202   rc = sqlite3_user_delete(db, zUser);
7203   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
7204   return TCL_OK;
7205 }
7206 #endif /* SQLITE_USER_AUTHENTICATION */
7207 
7208 /*
7209 ** tclcmd: bad_behavior TYPE
7210 **
7211 ** Do some things that should trigger a valgrind or -fsanitize=undefined
7212 ** warning.  This is used to verify that errors and warnings output by those
7213 ** tools are detected by the test scripts.
7214 **
7215 **       TYPE       BEHAVIOR
7216 **       1          Overflow a signed integer
7217 **       2          Jump based on an uninitialized variable
7218 **       3          Read after free
7219 **       4          Panic
7220 */
7221 static int SQLITE_TCLAPI test_bad_behavior(
7222   ClientData clientData, /* Pointer to an integer containing zero */
7223   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
7224   int objc,              /* Number of arguments */
7225   Tcl_Obj *CONST objv[]  /* Command arguments */
7226 ){
7227   int iType;
7228   int xyz;
7229   int i = *(int*)clientData;
7230   int j;
7231   int w[10];
7232   int *a;
7233   if( objc!=2 ){
7234     Tcl_WrongNumArgs(interp, 1, objv, "TYPE");
7235     return TCL_ERROR;
7236   }
7237   if( Tcl_GetIntFromObj(interp, objv[1], &iType) ) return TCL_ERROR;
7238   switch( iType ){
7239     case 1: {
7240       xyz = 0x7fffff00 - i;
7241       xyz += 0x100;
7242       Tcl_SetObjResult(interp, Tcl_NewIntObj(xyz));
7243       break;
7244     }
7245     case 2: {
7246       w[1] = 5;
7247       if( w[i]>0 ) w[1]++;
7248       Tcl_SetObjResult(interp, Tcl_NewIntObj(w[1]));
7249       break;
7250     }
7251     case 3: {
7252       a = malloc( sizeof(int)*10 );
7253       for(j=0; j<10; j++) a[j] = j;
7254       free(a);
7255       Tcl_SetObjResult(interp, Tcl_NewIntObj(a[i]));
7256       break;
7257     }
7258     case 4: {
7259       Tcl_Panic("Deliberate panic");
7260       break;
7261     }
7262   }
7263   return TCL_OK;
7264 }
7265 
7266 /*
7267 ** tclcmd:   register_dbstat_vtab DB
7268 **
7269 ** Cause the dbstat virtual table to be available on the connection DB
7270 */
7271 static int SQLITE_TCLAPI test_register_dbstat_vtab(
7272   void *clientData,
7273   Tcl_Interp *interp,
7274   int objc,
7275   Tcl_Obj *CONST objv[]
7276 ){
7277 #ifdef SQLITE_OMIT_VIRTUALTABLE
7278   Tcl_AppendResult(interp, "dbstat not available because of "
7279                            "SQLITE_OMIT_VIRTUALTABLE", (void*)0);
7280   return TCL_ERROR;
7281 #else
7282   struct SqliteDb { sqlite3 *db; };
7283   char *zDb;
7284   Tcl_CmdInfo cmdInfo;
7285 
7286   if( objc!=2 ){
7287     Tcl_WrongNumArgs(interp, 1, objv, "DB");
7288     return TCL_ERROR;
7289   }
7290 
7291   zDb = Tcl_GetString(objv[1]);
7292   if( Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
7293     sqlite3* db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
7294     sqlite3DbstatRegister(db);
7295   }
7296   return TCL_OK;
7297 #endif /* SQLITE_OMIT_VIRTUALTABLE */
7298 }
7299 
7300 /*
7301 ** tclcmd:   sqlite3_db_config DB SETTING VALUE
7302 **
7303 ** Invoke sqlite3_db_config() for one of the setting values.
7304 */
7305 static int SQLITE_TCLAPI test_sqlite3_db_config(
7306   void *clientData,
7307   Tcl_Interp *interp,
7308   int objc,
7309   Tcl_Obj *CONST objv[]
7310 ){
7311   static const struct {
7312     const char *zName;
7313     int eVal;
7314   } aSetting[] = {
7315     { "FKEY",            SQLITE_DBCONFIG_ENABLE_FKEY },
7316     { "TRIGGER",         SQLITE_DBCONFIG_ENABLE_TRIGGER },
7317     { "FTS3_TOKENIZER",  SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
7318     { "LOAD_EXTENSION",  SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
7319     { "NO_CKPT_ON_CLOSE",SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE },
7320   };
7321   int i;
7322   int v;
7323   const char *zSetting;
7324   sqlite3 *db;
7325 
7326   if( objc!=4 ){
7327     Tcl_WrongNumArgs(interp, 1, objv, "DB SETTING VALUE");
7328     return TCL_ERROR;
7329   }
7330   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7331   zSetting = Tcl_GetString(objv[2]);
7332   if( sqlite3_strglob("SQLITE_*", zSetting)==0 ) zSetting += 7;
7333   if( sqlite3_strglob("DBCONFIG_*", zSetting)==0 ) zSetting += 9;
7334   if( sqlite3_strglob("ENABLE_*", zSetting)==0 ) zSetting += 7;
7335   for(i=0; i<ArraySize(aSetting); i++){
7336     if( strcmp(zSetting, aSetting[i].zName)==0 ) break;
7337   }
7338   if( i>=ArraySize(aSetting) ){
7339     Tcl_SetObjResult(interp,
7340       Tcl_NewStringObj("unknown sqlite3_db_config setting", -1));
7341     return TCL_ERROR;
7342   }
7343   if( Tcl_GetIntFromObj(interp, objv[3], &v) ) return TCL_ERROR;
7344   sqlite3_db_config(db, aSetting[i].eVal, v, &v);
7345   Tcl_SetObjResult(interp, Tcl_NewIntObj(v));
7346   return TCL_OK;
7347 }
7348 
7349 /*
7350 ** Change the name of the main database schema from "main" to "icecube".
7351 */
7352 static int SQLITE_TCLAPI test_dbconfig_maindbname_icecube(
7353   void * clientData,
7354   Tcl_Interp *interp,
7355   int objc,
7356   Tcl_Obj *CONST objv[]
7357 ){
7358   int rc;
7359   sqlite3 *db;
7360   extern int getDbPointer(Tcl_Interp*, const char*, sqlite3**);
7361   if( objc!=2 ){
7362     Tcl_WrongNumArgs(interp, 1, objv, "DB");
7363     return TCL_ERROR;
7364   }else{
7365     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
7366     rc = sqlite3_db_config(db, SQLITE_DBCONFIG_MAINDBNAME, "icecube");
7367     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
7368     return TCL_OK;
7369   }
7370 }
7371 
7372 /*
7373 ** Register commands with the TCL interpreter.
7374 */
7375 int Sqlitetest1_Init(Tcl_Interp *interp){
7376   extern int sqlite3_search_count;
7377   extern int sqlite3_found_count;
7378   extern int sqlite3_interrupt_count;
7379   extern int sqlite3_open_file_count;
7380   extern int sqlite3_sort_count;
7381   extern int sqlite3_current_time;
7382 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
7383   extern int sqlite3_hostid_num;
7384 #endif
7385   extern int sqlite3_max_blobsize;
7386   extern int SQLITE_TCLAPI sqlite3BtreeSharedCacheReport(void*,
7387                                           Tcl_Interp*,int,Tcl_Obj*CONST*);
7388   static int iZero = 0;
7389   static struct {
7390      char *zName;
7391      Tcl_CmdProc *xProc;
7392   } aCmd[] = {
7393      { "db_enter",                      (Tcl_CmdProc*)db_enter               },
7394      { "db_leave",                      (Tcl_CmdProc*)db_leave               },
7395      { "sqlite3_mprintf_int",           (Tcl_CmdProc*)sqlite3_mprintf_int    },
7396      { "sqlite3_mprintf_int64",         (Tcl_CmdProc*)sqlite3_mprintf_int64  },
7397      { "sqlite3_mprintf_long",          (Tcl_CmdProc*)sqlite3_mprintf_long   },
7398      { "sqlite3_mprintf_str",           (Tcl_CmdProc*)sqlite3_mprintf_str    },
7399      { "sqlite3_snprintf_str",          (Tcl_CmdProc*)sqlite3_snprintf_str   },
7400      { "sqlite3_mprintf_stronly",       (Tcl_CmdProc*)sqlite3_mprintf_stronly},
7401      { "sqlite3_mprintf_double",        (Tcl_CmdProc*)sqlite3_mprintf_double },
7402      { "sqlite3_mprintf_scaled",        (Tcl_CmdProc*)sqlite3_mprintf_scaled },
7403      { "sqlite3_mprintf_hexdouble",   (Tcl_CmdProc*)sqlite3_mprintf_hexdouble},
7404      { "sqlite3_mprintf_z_test",        (Tcl_CmdProc*)test_mprintf_z        },
7405      { "sqlite3_mprintf_n_test",        (Tcl_CmdProc*)test_mprintf_n        },
7406      { "sqlite3_snprintf_int",          (Tcl_CmdProc*)test_snprintf_int     },
7407      { "sqlite3_last_insert_rowid",     (Tcl_CmdProc*)test_last_rowid       },
7408      { "sqlite3_exec_printf",           (Tcl_CmdProc*)test_exec_printf      },
7409      { "sqlite3_exec_hex",              (Tcl_CmdProc*)test_exec_hex         },
7410      { "sqlite3_exec",                  (Tcl_CmdProc*)test_exec             },
7411      { "sqlite3_exec_nr",               (Tcl_CmdProc*)test_exec_nr          },
7412 #ifndef SQLITE_OMIT_GET_TABLE
7413      { "sqlite3_get_table_printf",      (Tcl_CmdProc*)test_get_table_printf },
7414 #endif
7415      { "sqlite3_close",                 (Tcl_CmdProc*)sqlite_test_close     },
7416      { "sqlite3_close_v2",              (Tcl_CmdProc*)sqlite_test_close_v2  },
7417      { "sqlite3_create_function",       (Tcl_CmdProc*)test_create_function  },
7418      { "sqlite3_create_aggregate",      (Tcl_CmdProc*)test_create_aggregate },
7419      { "sqlite_register_test_function", (Tcl_CmdProc*)test_register_func    },
7420      { "sqlite_abort",                  (Tcl_CmdProc*)sqlite_abort          },
7421      { "sqlite_bind",                   (Tcl_CmdProc*)test_bind             },
7422      { "breakpoint",                    (Tcl_CmdProc*)test_breakpoint       },
7423      { "sqlite3_key",                   (Tcl_CmdProc*)test_key              },
7424      { "sqlite3_rekey",                 (Tcl_CmdProc*)test_rekey            },
7425      { "sqlite_set_magic",              (Tcl_CmdProc*)sqlite_set_magic      },
7426      { "sqlite3_interrupt",             (Tcl_CmdProc*)test_interrupt        },
7427      { "sqlite_delete_function",        (Tcl_CmdProc*)delete_function       },
7428      { "sqlite_delete_collation",       (Tcl_CmdProc*)delete_collation      },
7429      { "sqlite3_get_autocommit",        (Tcl_CmdProc*)get_autocommit        },
7430      { "sqlite3_busy_timeout",          (Tcl_CmdProc*)test_busy_timeout     },
7431      { "printf",                        (Tcl_CmdProc*)test_printf           },
7432      { "sqlite3IoTrace",              (Tcl_CmdProc*)test_io_trace         },
7433      { "clang_sanitize_address",        (Tcl_CmdProc*)clang_sanitize_address },
7434   };
7435   static struct {
7436      char *zName;
7437      Tcl_ObjCmdProc *xProc;
7438      void *clientData;
7439   } aObjCmd[] = {
7440      { "sqlite3_db_config",             test_sqlite3_db_config, 0 },
7441      { "bad_behavior",                  test_bad_behavior,  (void*)&iZero },
7442      { "register_dbstat_vtab",          test_register_dbstat_vtab  },
7443      { "sqlite3_connection_pointer",    get_sqlite_pointer, 0 },
7444      { "intarray_addr",                 test_intarray_addr, 0 },
7445      { "int64array_addr",               test_int64array_addr, 0 },
7446      { "doublearray_addr",              test_doublearray_addr, 0 },
7447      { "textarray_addr",                test_textarray_addr, 0 },
7448      { "sqlite3_bind_int",              test_bind_int,      0 },
7449      { "sqlite3_bind_zeroblob",         test_bind_zeroblob, 0 },
7450      { "sqlite3_bind_zeroblob64",       test_bind_zeroblob64, 0 },
7451      { "sqlite3_bind_int64",            test_bind_int64,    0 },
7452      { "sqlite3_bind_double",           test_bind_double,   0 },
7453      { "sqlite3_bind_null",             test_bind_null     ,0 },
7454      { "sqlite3_bind_text",             test_bind_text     ,0 },
7455      { "sqlite3_bind_text16",           test_bind_text16   ,0 },
7456      { "sqlite3_bind_blob",             test_bind_blob     ,0 },
7457      { "sqlite3_bind_parameter_count",  test_bind_parameter_count, 0},
7458      { "sqlite3_bind_parameter_name",   test_bind_parameter_name,  0},
7459      { "sqlite3_bind_parameter_index",  test_bind_parameter_index, 0},
7460      { "sqlite3_clear_bindings",        test_clear_bindings, 0},
7461      { "sqlite3_sleep",                 test_sleep,          0},
7462      { "sqlite3_errcode",               test_errcode       ,0 },
7463      { "sqlite3_extended_errcode",      test_ex_errcode    ,0 },
7464      { "sqlite3_errmsg",                test_errmsg        ,0 },
7465      { "sqlite3_errmsg16",              test_errmsg16      ,0 },
7466      { "sqlite3_open",                  test_open          ,0 },
7467      { "sqlite3_open16",                test_open16        ,0 },
7468      { "sqlite3_open_v2",               test_open_v2       ,0 },
7469      { "sqlite3_complete16",            test_complete16    ,0 },
7470 
7471      { "sqlite3_prepare",               test_prepare       ,0 },
7472      { "sqlite3_prepare16",             test_prepare16     ,0 },
7473      { "sqlite3_prepare_v2",            test_prepare_v2    ,0 },
7474      { "sqlite3_prepare_tkt3134",       test_prepare_tkt3134, 0},
7475      { "sqlite3_prepare16_v2",          test_prepare16_v2  ,0 },
7476      { "sqlite3_finalize",              test_finalize      ,0 },
7477      { "sqlite3_stmt_status",           test_stmt_status   ,0 },
7478      { "sqlite3_reset",                 test_reset         ,0 },
7479      { "sqlite3_expired",               test_expired       ,0 },
7480      { "sqlite3_transfer_bindings",     test_transfer_bind ,0 },
7481      { "sqlite3_changes",               test_changes       ,0 },
7482      { "sqlite3_step",                  test_step          ,0 },
7483      { "sqlite3_sql",                   test_sql           ,0 },
7484      { "sqlite3_expanded_sql",          test_ex_sql        ,0 },
7485      { "sqlite3_next_stmt",             test_next_stmt     ,0 },
7486      { "sqlite3_stmt_readonly",         test_stmt_readonly ,0 },
7487      { "sqlite3_stmt_busy",             test_stmt_busy     ,0 },
7488      { "uses_stmt_journal",             uses_stmt_journal ,0 },
7489 
7490      { "sqlite3_release_memory",        test_release_memory,     0},
7491      { "sqlite3_db_release_memory",     test_db_release_memory,  0},
7492      { "sqlite3_db_cacheflush",         test_db_cacheflush,      0},
7493      { "sqlite3_system_errno",          test_system_errno,       0},
7494      { "sqlite3_db_filename",           test_db_filename,        0},
7495      { "sqlite3_db_readonly",           test_db_readonly,        0},
7496      { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
7497      { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
7498      { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},
7499 
7500      { "sqlite3_load_extension",        test_load_extension,     0},
7501      { "sqlite3_enable_load_extension", test_enable_load,        0},
7502      { "sqlite3_extended_result_codes", test_extended_result_codes, 0},
7503      { "sqlite3_limit",                 test_limit,                 0},
7504      { "dbconfig_maindbname_icecube",   test_dbconfig_maindbname_icecube },
7505 
7506      { "save_prng_state",               save_prng_state,    0 },
7507      { "restore_prng_state",            restore_prng_state, 0 },
7508      { "reset_prng_state",              reset_prng_state,   0 },
7509      { "database_never_corrupt",        database_never_corrupt, 0},
7510      { "database_may_be_corrupt",       database_may_be_corrupt, 0},
7511      { "optimization_control",          optimization_control,0},
7512 #if SQLITE_OS_WIN
7513      { "lock_win32_file",               win32_file_lock,    0 },
7514      { "exists_win32_path",             win32_exists_path,  0 },
7515      { "find_win32_file",               win32_find_file,    0 },
7516      { "delete_win32_file",             win32_delete_file,  0 },
7517      { "make_win32_dir",                win32_mkdir,        0 },
7518      { "remove_win32_dir",              win32_rmdir,        0 },
7519 #endif
7520      { "tcl_objproc",                   runAsObjProc,       0 },
7521 
7522      /* sqlite3_column_*() API */
7523      { "sqlite3_column_count",          test_column_count  ,0 },
7524      { "sqlite3_data_count",            test_data_count    ,0 },
7525      { "sqlite3_column_type",           test_column_type   ,0 },
7526      { "sqlite3_column_blob",           test_column_blob   ,0 },
7527      { "sqlite3_column_double",         test_column_double ,0 },
7528      { "sqlite3_column_int64",          test_column_int64  ,0 },
7529      { "sqlite3_column_text",   test_stmt_utf8,  (void*)sqlite3_column_text },
7530      { "sqlite3_column_name",   test_stmt_utf8,  (void*)sqlite3_column_name },
7531      { "sqlite3_column_int",    test_stmt_int,   (void*)sqlite3_column_int  },
7532      { "sqlite3_column_bytes",  test_stmt_int,   (void*)sqlite3_column_bytes},
7533 #ifndef SQLITE_OMIT_DECLTYPE
7534      { "sqlite3_column_decltype",test_stmt_utf8,(void*)sqlite3_column_decltype},
7535 #endif
7536 #ifdef SQLITE_ENABLE_COLUMN_METADATA
7537 { "sqlite3_column_database_name",test_stmt_utf8,(void*)sqlite3_column_database_name},
7538 { "sqlite3_column_table_name",test_stmt_utf8,(void*)sqlite3_column_table_name},
7539 { "sqlite3_column_origin_name",test_stmt_utf8,(void*)sqlite3_column_origin_name},
7540 #endif
7541 
7542 #ifndef SQLITE_OMIT_UTF16
7543      { "sqlite3_column_bytes16", test_stmt_int, (void*)sqlite3_column_bytes16 },
7544      { "sqlite3_column_text16",  test_stmt_utf16, (void*)sqlite3_column_text16},
7545      { "sqlite3_column_name16",  test_stmt_utf16, (void*)sqlite3_column_name16},
7546      { "add_alignment_test_collations", add_alignment_test_collations, 0      },
7547 #ifndef SQLITE_OMIT_DECLTYPE
7548      { "sqlite3_column_decltype16",test_stmt_utf16,(void*)sqlite3_column_decltype16},
7549 #endif
7550 #ifdef SQLITE_ENABLE_COLUMN_METADATA
7551 {"sqlite3_column_database_name16",
7552   test_stmt_utf16, (void*)sqlite3_column_database_name16},
7553 {"sqlite3_column_table_name16", test_stmt_utf16, (void*)sqlite3_column_table_name16},
7554 {"sqlite3_column_origin_name16", test_stmt_utf16, (void*)sqlite3_column_origin_name16},
7555 #endif
7556 #endif
7557      { "sqlite3_create_collation_v2", test_create_collation_v2, 0 },
7558      { "sqlite3_global_recover",     test_global_recover, 0   },
7559      { "working_64bit_int",          working_64bit_int,   0   },
7560      { "vfs_unlink_test",            vfs_unlink_test,     0   },
7561      { "vfs_initfail_test",          vfs_initfail_test,   0   },
7562      { "vfs_unregister_all",         vfs_unregister_all,  0   },
7563      { "vfs_reregister_all",         vfs_reregister_all,  0   },
7564      { "file_control_test",          file_control_test,   0   },
7565      { "file_control_lasterrno_test", file_control_lasterrno_test,  0   },
7566      { "file_control_lockproxy_test", file_control_lockproxy_test,  0   },
7567      { "file_control_chunksize_test", file_control_chunksize_test,  0   },
7568      { "file_control_sizehint_test",  file_control_sizehint_test,   0   },
7569 #if SQLITE_OS_WIN
7570      { "file_control_win32_av_retry", file_control_win32_av_retry,  0   },
7571      { "file_control_win32_get_handle", file_control_win32_get_handle, 0  },
7572      { "file_control_win32_set_handle", file_control_win32_set_handle, 0  },
7573 #endif
7574      { "file_control_persist_wal",    file_control_persist_wal,     0   },
7575      { "file_control_powersafe_overwrite",file_control_powersafe_overwrite,0},
7576      { "file_control_vfsname",        file_control_vfsname,         0   },
7577      { "file_control_tempfilename",   file_control_tempfilename,    0   },
7578      { "sqlite3_vfs_list",           vfs_list,     0   },
7579      { "sqlite3_create_function_v2", test_create_function_v2, 0 },
7580 
7581      /* Functions from os.h */
7582 #ifndef SQLITE_OMIT_UTF16
7583      { "add_test_collate",        test_collate, 0            },
7584      { "add_test_collate_needed", test_collate_needed, 0     },
7585      { "add_test_function",       test_function, 0           },
7586      { "add_test_utf16bin_collate",    test_utf16bin_collate, 0        },
7587 #endif
7588      { "sqlite3_test_errstr",     test_errstr, 0             },
7589      { "tcl_variable_type",       tcl_variable_type, 0       },
7590 #ifndef SQLITE_OMIT_SHARED_CACHE
7591      { "sqlite3_enable_shared_cache", test_enable_shared, 0  },
7592      { "sqlite3_shared_cache_report", sqlite3BtreeSharedCacheReport, 0},
7593 #endif
7594      { "sqlite3_libversion_number", test_libversion_number, 0  },
7595      { "sqlite3_table_column_metadata", test_table_column_metadata, 0  },
7596 #ifndef SQLITE_OMIT_INCRBLOB
7597      { "sqlite3_blob_reopen", test_blob_reopen, 0  },
7598 #endif
7599      { "pcache_stats",       test_pcache_stats, 0  },
7600 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
7601      { "sqlite3_unlock_notify", test_unlock_notify, 0  },
7602 #endif
7603      { "sqlite3_wal_checkpoint",   test_wal_checkpoint, 0  },
7604      { "sqlite3_wal_checkpoint_v2",test_wal_checkpoint_v2, 0  },
7605      { "sqlite3_wal_autocheckpoint",test_wal_autocheckpoint, 0  },
7606      { "test_sqlite3_log",         test_sqlite3_log, 0  },
7607 #ifndef SQLITE_OMIT_EXPLAIN
7608      { "print_explain_query_plan", test_print_eqp, 0  },
7609 #endif
7610      { "sqlite3_test_control", test_test_control },
7611 #if SQLITE_OS_UNIX
7612      { "getrusage", test_getrusage },
7613 #endif
7614      { "load_static_extension", tclLoadStaticExtensionCmd },
7615      { "sorter_test_fakeheap", sorter_test_fakeheap },
7616      { "sorter_test_sort4_helper", sorter_test_sort4_helper },
7617 #ifdef SQLITE_USER_AUTHENTICATION
7618      { "sqlite3_user_authenticate", test_user_authenticate, 0 },
7619      { "sqlite3_user_add",          test_user_add,          0 },
7620      { "sqlite3_user_change",       test_user_change,       0 },
7621      { "sqlite3_user_delete",       test_user_delete,       0 },
7622 #endif
7623 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
7624      { "sqlite3_stmt_scanstatus",       test_stmt_scanstatus,   0 },
7625      { "sqlite3_stmt_scanstatus_reset", test_stmt_scanstatus_reset,   0 },
7626 #endif
7627 #ifdef SQLITE_ENABLE_SQLLOG
7628      { "sqlite3_config_sqllog",         test_config_sqllog,   0 },
7629 #endif
7630      { "vfs_current_time_int64",           vfsCurrentTimeInt64,   0 },
7631 #ifdef SQLITE_ENABLE_SNAPSHOT
7632      { "sqlite3_snapshot_get", test_snapshot_get, 0 },
7633      { "sqlite3_snapshot_open", test_snapshot_open, 0 },
7634      { "sqlite3_snapshot_free", test_snapshot_free, 0 },
7635      { "sqlite3_snapshot_cmp", test_snapshot_cmp, 0 },
7636      { "sqlite3_snapshot_recover", test_snapshot_recover, 0 },
7637      { "sqlite3_snapshot_get_blob", test_snapshot_get_blob, 0 },
7638      { "sqlite3_snapshot_open_blob", test_snapshot_open_blob, 0 },
7639      { "sqlite3_snapshot_cmp_blob", test_snapshot_cmp_blob, 0 },
7640 #endif
7641      { "sqlite3_delete_database", test_delete_database, 0 },
7642   };
7643   static int bitmask_size = sizeof(Bitmask)*8;
7644   static int longdouble_size = sizeof(LONGDOUBLE_TYPE);
7645   int i;
7646   extern int sqlite3_sync_count, sqlite3_fullsync_count;
7647   extern int sqlite3_opentemp_count;
7648   extern int sqlite3_like_count;
7649   extern int sqlite3_xferopt_count;
7650   extern int sqlite3_pager_readdb_count;
7651   extern int sqlite3_pager_writedb_count;
7652   extern int sqlite3_pager_writej_count;
7653 #if SQLITE_OS_WIN
7654   extern LONG volatile sqlite3_os_type;
7655 #endif
7656 #ifdef SQLITE_DEBUG
7657   extern int sqlite3WhereTrace;
7658   extern int sqlite3OSTrace;
7659   extern int sqlite3WalTrace;
7660 #endif
7661 #ifdef SQLITE_TEST
7662 #ifdef SQLITE_ENABLE_FTS3
7663   extern int sqlite3_fts3_enable_parentheses;
7664 #endif
7665 #endif
7666 
7667   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
7668     Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
7669   }
7670   for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
7671     Tcl_CreateObjCommand(interp, aObjCmd[i].zName,
7672         aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
7673   }
7674   Tcl_LinkVar(interp, "sqlite_search_count",
7675       (char*)&sqlite3_search_count, TCL_LINK_INT);
7676   Tcl_LinkVar(interp, "sqlite_found_count",
7677       (char*)&sqlite3_found_count, TCL_LINK_INT);
7678   Tcl_LinkVar(interp, "sqlite_sort_count",
7679       (char*)&sqlite3_sort_count, TCL_LINK_INT);
7680   Tcl_LinkVar(interp, "sqlite3_max_blobsize",
7681       (char*)&sqlite3_max_blobsize, TCL_LINK_INT);
7682   Tcl_LinkVar(interp, "sqlite_like_count",
7683       (char*)&sqlite3_like_count, TCL_LINK_INT);
7684   Tcl_LinkVar(interp, "sqlite_interrupt_count",
7685       (char*)&sqlite3_interrupt_count, TCL_LINK_INT);
7686   Tcl_LinkVar(interp, "sqlite_open_file_count",
7687       (char*)&sqlite3_open_file_count, TCL_LINK_INT);
7688   Tcl_LinkVar(interp, "sqlite_current_time",
7689       (char*)&sqlite3_current_time, TCL_LINK_INT);
7690 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
7691   Tcl_LinkVar(interp, "sqlite_hostid_num",
7692       (char*)&sqlite3_hostid_num, TCL_LINK_INT);
7693 #endif
7694   Tcl_LinkVar(interp, "sqlite3_xferopt_count",
7695       (char*)&sqlite3_xferopt_count, TCL_LINK_INT);
7696   Tcl_LinkVar(interp, "sqlite3_pager_readdb_count",
7697       (char*)&sqlite3_pager_readdb_count, TCL_LINK_INT);
7698   Tcl_LinkVar(interp, "sqlite3_pager_writedb_count",
7699       (char*)&sqlite3_pager_writedb_count, TCL_LINK_INT);
7700   Tcl_LinkVar(interp, "sqlite3_pager_writej_count",
7701       (char*)&sqlite3_pager_writej_count, TCL_LINK_INT);
7702 #ifndef SQLITE_OMIT_UTF16
7703   Tcl_LinkVar(interp, "unaligned_string_counter",
7704       (char*)&unaligned_string_counter, TCL_LINK_INT);
7705 #endif
7706 #ifndef SQLITE_OMIT_UTF16
7707   Tcl_LinkVar(interp, "sqlite_last_needed_collation",
7708       (char*)&pzNeededCollation, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
7709 #endif
7710 #if SQLITE_OS_WIN
7711   Tcl_LinkVar(interp, "sqlite_os_type",
7712       (char*)&sqlite3_os_type, TCL_LINK_LONG);
7713 #endif
7714 #ifdef SQLITE_TEST
7715   {
7716     static const char *query_plan = "*** OBSOLETE VARIABLE ***";
7717     Tcl_LinkVar(interp, "sqlite_query_plan",
7718        (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
7719   }
7720 #endif
7721 #ifdef SQLITE_DEBUG
7722   Tcl_LinkVar(interp, "sqlite_where_trace",
7723       (char*)&sqlite3WhereTrace, TCL_LINK_INT);
7724   Tcl_LinkVar(interp, "sqlite_os_trace",
7725       (char*)&sqlite3OSTrace, TCL_LINK_INT);
7726 #ifndef SQLITE_OMIT_WAL
7727   Tcl_LinkVar(interp, "sqlite_wal_trace",
7728       (char*)&sqlite3WalTrace, TCL_LINK_INT);
7729 #endif
7730 #endif
7731 #ifndef SQLITE_OMIT_DISKIO
7732   Tcl_LinkVar(interp, "sqlite_opentemp_count",
7733       (char*)&sqlite3_opentemp_count, TCL_LINK_INT);
7734 #endif
7735   Tcl_LinkVar(interp, "sqlite_static_bind_value",
7736       (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
7737   Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
7738       (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);
7739   Tcl_LinkVar(interp, "sqlite_temp_directory",
7740       (char*)&sqlite3_temp_directory, TCL_LINK_STRING);
7741   Tcl_LinkVar(interp, "sqlite_data_directory",
7742       (char*)&sqlite3_data_directory, TCL_LINK_STRING);
7743   Tcl_LinkVar(interp, "bitmask_size",
7744       (char*)&bitmask_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
7745   Tcl_LinkVar(interp, "longdouble_size",
7746       (char*)&longdouble_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
7747   Tcl_LinkVar(interp, "sqlite_sync_count",
7748       (char*)&sqlite3_sync_count, TCL_LINK_INT);
7749   Tcl_LinkVar(interp, "sqlite_fullsync_count",
7750       (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
7751 #if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
7752   Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
7753       (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
7754 #endif
7755   return TCL_OK;
7756 }
7757