xref: /sqlite-3.40.0/src/test1.c (revision 1ed93e90)
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 ** $Id: test1.c,v 1.353 2009/05/03 20:23:54 drh Exp $
17 */
18 #include "sqliteInt.h"
19 #include "tcl.h"
20 #include <stdlib.h>
21 #include <string.h>
22 
23 /*
24 ** This is a copy of the first part of the SqliteDb structure in
25 ** tclsqlite.c.  We need it here so that the get_sqlite_pointer routine
26 ** can extract the sqlite3* pointer from an existing Tcl SQLite
27 ** connection.
28 */
29 struct SqliteDb {
30   sqlite3 *db;
31 };
32 
33 /*
34 ** Convert text generated by the "%p" conversion format back into
35 ** a pointer.
36 */
37 static int testHexToInt(int h){
38   if( h>='0' && h<='9' ){
39     return h - '0';
40   }else if( h>='a' && h<='f' ){
41     return h - 'a' + 10;
42   }else{
43     assert( h>='A' && h<='F' );
44     return h - 'A' + 10;
45   }
46 }
47 void *sqlite3TestTextToPtr(const char *z){
48   void *p;
49   u64 v;
50   u32 v2;
51   if( z[0]=='0' && z[1]=='x' ){
52     z += 2;
53   }
54   v = 0;
55   while( *z ){
56     v = (v<<4) + testHexToInt(*z);
57     z++;
58   }
59   if( sizeof(p)==sizeof(v) ){
60     memcpy(&p, &v, sizeof(p));
61   }else{
62     assert( sizeof(p)==sizeof(v2) );
63     v2 = (u32)v;
64     memcpy(&p, &v2, sizeof(p));
65   }
66   return p;
67 }
68 
69 
70 /*
71 ** A TCL command that returns the address of the sqlite* pointer
72 ** for an sqlite connection instance.  Bad things happen if the
73 ** input is not an sqlite connection.
74 */
75 static int get_sqlite_pointer(
76   void * clientData,
77   Tcl_Interp *interp,
78   int objc,
79   Tcl_Obj *CONST objv[]
80 ){
81   struct SqliteDb *p;
82   Tcl_CmdInfo cmdInfo;
83   char zBuf[100];
84   if( objc!=2 ){
85     Tcl_WrongNumArgs(interp, 1, objv, "SQLITE-CONNECTION");
86     return TCL_ERROR;
87   }
88   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
89     Tcl_AppendResult(interp, "command not found: ",
90            Tcl_GetString(objv[1]), (char*)0);
91     return TCL_ERROR;
92   }
93   p = (struct SqliteDb*)cmdInfo.objClientData;
94   sprintf(zBuf, "%p", p->db);
95   if( strncmp(zBuf,"0x",2) ){
96     sprintf(zBuf, "0x%p", p->db);
97   }
98   Tcl_AppendResult(interp, zBuf, 0);
99   return TCL_OK;
100 }
101 
102 /*
103 ** Decode a pointer to an sqlite3 object.
104 */
105 int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb){
106   struct SqliteDb *p;
107   Tcl_CmdInfo cmdInfo;
108   if( Tcl_GetCommandInfo(interp, zA, &cmdInfo) ){
109     p = (struct SqliteDb*)cmdInfo.objClientData;
110     *ppDb = p->db;
111   }else{
112     *ppDb = (sqlite3*)sqlite3TestTextToPtr(zA);
113   }
114   return TCL_OK;
115 }
116 
117 
118 const char *sqlite3TestErrorName(int rc){
119   const char *zName = 0;
120   switch( rc ){
121     case SQLITE_OK:                  zName = "SQLITE_OK";                break;
122     case SQLITE_ERROR:               zName = "SQLITE_ERROR";             break;
123     case SQLITE_INTERNAL:            zName = "SQLITE_INTERNAL";          break;
124     case SQLITE_PERM:                zName = "SQLITE_PERM";              break;
125     case SQLITE_ABORT:               zName = "SQLITE_ABORT";             break;
126     case SQLITE_BUSY:                zName = "SQLITE_BUSY";              break;
127     case SQLITE_LOCKED:              zName = "SQLITE_LOCKED";            break;
128     case SQLITE_LOCKED_SHAREDCACHE:  zName = "SQLITE_LOCKED_SHAREDCACHE";break;
129     case SQLITE_NOMEM:               zName = "SQLITE_NOMEM";             break;
130     case SQLITE_READONLY:            zName = "SQLITE_READONLY";          break;
131     case SQLITE_INTERRUPT:           zName = "SQLITE_INTERRUPT";         break;
132     case SQLITE_IOERR:               zName = "SQLITE_IOERR";             break;
133     case SQLITE_CORRUPT:             zName = "SQLITE_CORRUPT";           break;
134     case SQLITE_NOTFOUND:            zName = "SQLITE_NOTFOUND";          break;
135     case SQLITE_FULL:                zName = "SQLITE_FULL";              break;
136     case SQLITE_CANTOPEN:            zName = "SQLITE_CANTOPEN";          break;
137     case SQLITE_PROTOCOL:            zName = "SQLITE_PROTOCOL";          break;
138     case SQLITE_EMPTY:               zName = "SQLITE_EMPTY";             break;
139     case SQLITE_SCHEMA:              zName = "SQLITE_SCHEMA";            break;
140     case SQLITE_TOOBIG:              zName = "SQLITE_TOOBIG";            break;
141     case SQLITE_CONSTRAINT:          zName = "SQLITE_CONSTRAINT";        break;
142     case SQLITE_MISMATCH:            zName = "SQLITE_MISMATCH";          break;
143     case SQLITE_MISUSE:              zName = "SQLITE_MISUSE";            break;
144     case SQLITE_NOLFS:               zName = "SQLITE_NOLFS";             break;
145     case SQLITE_AUTH:                zName = "SQLITE_AUTH";              break;
146     case SQLITE_FORMAT:              zName = "SQLITE_FORMAT";            break;
147     case SQLITE_RANGE:               zName = "SQLITE_RANGE";             break;
148     case SQLITE_NOTADB:              zName = "SQLITE_NOTADB";            break;
149     case SQLITE_ROW:                 zName = "SQLITE_ROW";               break;
150     case SQLITE_DONE:                zName = "SQLITE_DONE";              break;
151     case SQLITE_IOERR_READ:          zName = "SQLITE_IOERR_READ";        break;
152     case SQLITE_IOERR_SHORT_READ:    zName = "SQLITE_IOERR_SHORT_READ";  break;
153     case SQLITE_IOERR_WRITE:         zName = "SQLITE_IOERR_WRITE";       break;
154     case SQLITE_IOERR_FSYNC:         zName = "SQLITE_IOERR_FSYNC";       break;
155     case SQLITE_IOERR_DIR_FSYNC:     zName = "SQLITE_IOERR_DIR_FSYNC";   break;
156     case SQLITE_IOERR_TRUNCATE:      zName = "SQLITE_IOERR_TRUNCATE";    break;
157     case SQLITE_IOERR_FSTAT:         zName = "SQLITE_IOERR_FSTAT";       break;
158     case SQLITE_IOERR_UNLOCK:        zName = "SQLITE_IOERR_UNLOCK";      break;
159     case SQLITE_IOERR_RDLOCK:        zName = "SQLITE_IOERR_RDLOCK";      break;
160     case SQLITE_IOERR_DELETE:        zName = "SQLITE_IOERR_DELETE";      break;
161     case SQLITE_IOERR_BLOCKED:       zName = "SQLITE_IOERR_BLOCKED";     break;
162     case SQLITE_IOERR_NOMEM:         zName = "SQLITE_IOERR_NOMEM";       break;
163     case SQLITE_IOERR_ACCESS:        zName = "SQLITE_IOERR_ACCESS";      break;
164     case SQLITE_IOERR_CHECKRESERVEDLOCK:
165                                zName = "SQLITE_IOERR_CHECKRESERVEDLOCK"; break;
166     case SQLITE_IOERR_LOCK:          zName = "SQLITE_IOERR_LOCK";        break;
167     default:                         zName = "SQLITE_Unknown";           break;
168   }
169   return zName;
170 }
171 #define t1ErrorName sqlite3TestErrorName
172 
173 /*
174 ** Convert an sqlite3_stmt* into an sqlite3*.  This depends on the
175 ** fact that the sqlite3* is the first field in the Vdbe structure.
176 */
177 #define StmtToDb(X)   sqlite3_db_handle(X)
178 
179 /*
180 ** Check a return value to make sure it agrees with the results
181 ** from sqlite3_errcode.
182 */
183 int sqlite3TestErrCode(Tcl_Interp *interp, sqlite3 *db, int rc){
184   if( sqlite3_threadsafe()==0 && rc!=SQLITE_MISUSE && rc!=SQLITE_OK
185    && sqlite3_errcode(db)!=rc ){
186     char zBuf[200];
187     int r2 = sqlite3_errcode(db);
188     sprintf(zBuf, "error code %s (%d) does not match sqlite3_errcode %s (%d)",
189        t1ErrorName(rc), rc, t1ErrorName(r2), r2);
190     Tcl_ResetResult(interp);
191     Tcl_AppendResult(interp, zBuf, 0);
192     return 1;
193   }
194   return 0;
195 }
196 
197 /*
198 ** Decode a pointer to an sqlite3_stmt object.
199 */
200 static int getStmtPointer(
201   Tcl_Interp *interp,
202   const char *zArg,
203   sqlite3_stmt **ppStmt
204 ){
205   *ppStmt = (sqlite3_stmt*)sqlite3TestTextToPtr(zArg);
206   return TCL_OK;
207 }
208 
209 /*
210 ** Generate a text representation of a pointer that can be understood
211 ** by the getDbPointer and getVmPointer routines above.
212 **
213 ** The problem is, on some machines (Solaris) if you do a printf with
214 ** "%p" you cannot turn around and do a scanf with the same "%p" and
215 ** get your pointer back.  You have to prepend a "0x" before it will
216 ** work.  Or at least that is what is reported to me (drh).  But this
217 ** behavior varies from machine to machine.  The solution used her is
218 ** to test the string right after it is generated to see if it can be
219 ** understood by scanf, and if not, try prepending an "0x" to see if
220 ** that helps.  If nothing works, a fatal error is generated.
221 */
222 int sqlite3TestMakePointerStr(Tcl_Interp *interp, char *zPtr, void *p){
223   sqlite3_snprintf(100, zPtr, "%p", p);
224   return TCL_OK;
225 }
226 
227 /*
228 ** The callback routine for sqlite3_exec_printf().
229 */
230 static int exec_printf_cb(void *pArg, int argc, char **argv, char **name){
231   Tcl_DString *str = (Tcl_DString*)pArg;
232   int i;
233 
234   if( Tcl_DStringLength(str)==0 ){
235     for(i=0; i<argc; i++){
236       Tcl_DStringAppendElement(str, name[i] ? name[i] : "NULL");
237     }
238   }
239   for(i=0; i<argc; i++){
240     Tcl_DStringAppendElement(str, argv[i] ? argv[i] : "NULL");
241   }
242   return 0;
243 }
244 
245 /*
246 ** The I/O tracing callback.
247 */
248 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
249 static FILE *iotrace_file = 0;
250 static void io_trace_callback(const char *zFormat, ...){
251   va_list ap;
252   va_start(ap, zFormat);
253   vfprintf(iotrace_file, zFormat, ap);
254   va_end(ap);
255   fflush(iotrace_file);
256 }
257 #endif
258 
259 /*
260 ** Usage:  io_trace FILENAME
261 **
262 ** Turn I/O tracing on or off.  If FILENAME is not an empty string,
263 ** I/O tracing begins going into FILENAME. If FILENAME is an empty
264 ** string, I/O tracing is turned off.
265 */
266 static int test_io_trace(
267   void *NotUsed,
268   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
269   int argc,              /* Number of arguments */
270   char **argv            /* Text of each argument */
271 ){
272 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
273   if( argc!=2 ){
274     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
275           " FILENAME\"", 0);
276     return TCL_ERROR;
277   }
278   if( iotrace_file ){
279     if( iotrace_file!=stdout && iotrace_file!=stderr ){
280       fclose(iotrace_file);
281     }
282     iotrace_file = 0;
283     sqlite3IoTrace = 0;
284   }
285   if( argv[1][0] ){
286     if( strcmp(argv[1],"stdout")==0 ){
287       iotrace_file = stdout;
288     }else if( strcmp(argv[1],"stderr")==0 ){
289       iotrace_file = stderr;
290     }else{
291       iotrace_file = fopen(argv[1], "w");
292     }
293     sqlite3IoTrace = io_trace_callback;
294   }
295 #endif
296   return TCL_OK;
297 }
298 
299 
300 /*
301 ** Usage:  sqlite3_exec_printf  DB  FORMAT  STRING
302 **
303 ** Invoke the sqlite3_exec_printf() interface using the open database
304 ** DB.  The SQL is the string FORMAT.  The format string should contain
305 ** one %s or %q.  STRING is the value inserted into %s or %q.
306 */
307 static int test_exec_printf(
308   void *NotUsed,
309   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
310   int argc,              /* Number of arguments */
311   char **argv            /* Text of each argument */
312 ){
313   sqlite3 *db;
314   Tcl_DString str;
315   int rc;
316   char *zErr = 0;
317   char *zSql;
318   char zBuf[30];
319   if( argc!=4 ){
320     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
321        " DB FORMAT STRING", 0);
322     return TCL_ERROR;
323   }
324   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
325   Tcl_DStringInit(&str);
326   zSql = sqlite3_mprintf(argv[2], argv[3]);
327   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
328   sqlite3_free(zSql);
329   sprintf(zBuf, "%d", rc);
330   Tcl_AppendElement(interp, zBuf);
331   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
332   Tcl_DStringFree(&str);
333   if( zErr ) sqlite3_free(zErr);
334   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
335   return TCL_OK;
336 }
337 
338 /*
339 ** Usage:  sqlite3_exec_hex  DB  HEX
340 **
341 ** Invoke the sqlite3_exec() on a string that is obtained by translating
342 ** HEX into ASCII.  Most characters are translated as is.  %HH becomes
343 ** a hex character.
344 */
345 static int test_exec_hex(
346   void *NotUsed,
347   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
348   int argc,              /* Number of arguments */
349   char **argv            /* Text of each argument */
350 ){
351   sqlite3 *db;
352   Tcl_DString str;
353   int rc, i, j;
354   char *zErr = 0;
355   char *zHex;
356   char zSql[500];
357   char zBuf[30];
358   if( argc!=3 ){
359     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
360        " DB HEX", 0);
361     return TCL_ERROR;
362   }
363   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
364   zHex = argv[2];
365   for(i=j=0; i<sizeof(zSql) && zHex[j]; i++, j++){
366     if( zHex[j]=='%' && zHex[j+2] && zHex[j+2] ){
367       zSql[i] = (testHexToInt(zHex[j+1])<<4) + testHexToInt(zHex[j+2]);
368       j += 2;
369     }else{
370       zSql[i] = zHex[j];
371     }
372   }
373   zSql[i] = 0;
374   Tcl_DStringInit(&str);
375   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
376   sprintf(zBuf, "%d", rc);
377   Tcl_AppendElement(interp, zBuf);
378   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
379   Tcl_DStringFree(&str);
380   if( zErr ) sqlite3_free(zErr);
381   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
382   return TCL_OK;
383 }
384 
385 /*
386 ** Usage:  db_enter DB
387 **         db_leave DB
388 **
389 ** Enter or leave the mutex on a database connection.
390 */
391 static int db_enter(
392   void *NotUsed,
393   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
394   int argc,              /* Number of arguments */
395   char **argv            /* Text of each argument */
396 ){
397   sqlite3 *db;
398   if( argc!=2 ){
399     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
400        " DB", 0);
401     return TCL_ERROR;
402   }
403   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
404   sqlite3_mutex_enter(db->mutex);
405   return TCL_OK;
406 }
407 static int db_leave(
408   void *NotUsed,
409   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
410   int argc,              /* Number of arguments */
411   char **argv            /* Text of each argument */
412 ){
413   sqlite3 *db;
414   if( argc!=2 ){
415     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
416        " DB", 0);
417     return TCL_ERROR;
418   }
419   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
420   sqlite3_mutex_leave(db->mutex);
421   return TCL_OK;
422 }
423 
424 /*
425 ** Usage:  sqlite3_exec  DB  SQL
426 **
427 ** Invoke the sqlite3_exec interface using the open database DB
428 */
429 static int test_exec(
430   void *NotUsed,
431   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
432   int argc,              /* Number of arguments */
433   char **argv            /* Text of each argument */
434 ){
435   sqlite3 *db;
436   Tcl_DString str;
437   int rc;
438   char *zErr = 0;
439   char *zSql;
440   int i, j;
441   char zBuf[30];
442   if( argc!=3 ){
443     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
444        " DB SQL", 0);
445     return TCL_ERROR;
446   }
447   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
448   Tcl_DStringInit(&str);
449   zSql = sqlite3_mprintf("%s", argv[2]);
450   for(i=j=0; zSql[i];){
451     if( zSql[i]=='%' ){
452       zSql[j++] = (testHexToInt(zSql[i+1])<<4) + testHexToInt(zSql[i+2]);
453       i += 3;
454     }else{
455       zSql[j++] = zSql[i++];
456     }
457   }
458   zSql[j] = 0;
459   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
460   sqlite3_free(zSql);
461   sprintf(zBuf, "%d", rc);
462   Tcl_AppendElement(interp, zBuf);
463   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
464   Tcl_DStringFree(&str);
465   if( zErr ) sqlite3_free(zErr);
466   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
467   return TCL_OK;
468 }
469 
470 /*
471 ** Usage:  sqlite3_exec_nr  DB  SQL
472 **
473 ** Invoke the sqlite3_exec interface using the open database DB.  Discard
474 ** all results
475 */
476 static int test_exec_nr(
477   void *NotUsed,
478   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
479   int argc,              /* Number of arguments */
480   char **argv            /* Text of each argument */
481 ){
482   sqlite3 *db;
483   int rc;
484   char *zErr = 0;
485   if( argc!=3 ){
486     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
487        " DB SQL", 0);
488     return TCL_ERROR;
489   }
490   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
491   rc = sqlite3_exec(db, argv[2], 0, 0, &zErr);
492   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
493   return TCL_OK;
494 }
495 
496 /*
497 ** Usage:  sqlite3_mprintf_z_test  SEPARATOR  ARG0  ARG1 ...
498 **
499 ** Test the %z format of sqlite_mprintf().  Use multiple mprintf() calls to
500 ** concatenate arg0 through argn using separator as the separator.
501 ** Return the result.
502 */
503 static int test_mprintf_z(
504   void *NotUsed,
505   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
506   int argc,              /* Number of arguments */
507   char **argv            /* Text of each argument */
508 ){
509   char *zResult = 0;
510   int i;
511 
512   for(i=2; i<argc && (i==2 || zResult); i++){
513     zResult = sqlite3_mprintf("%z%s%s", zResult, argv[1], argv[i]);
514   }
515   Tcl_AppendResult(interp, zResult, 0);
516   sqlite3_free(zResult);
517   return TCL_OK;
518 }
519 
520 /*
521 ** Usage:  sqlite3_mprintf_n_test  STRING
522 **
523 ** Test the %n format of sqlite_mprintf().  Return the length of the
524 ** input string.
525 */
526 static int test_mprintf_n(
527   void *NotUsed,
528   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
529   int argc,              /* Number of arguments */
530   char **argv            /* Text of each argument */
531 ){
532   char *zStr;
533   int n = 0;
534   zStr = sqlite3_mprintf("%s%n", argv[1], &n);
535   sqlite3_free(zStr);
536   Tcl_SetObjResult(interp, Tcl_NewIntObj(n));
537   return TCL_OK;
538 }
539 
540 /*
541 ** Usage:  sqlite3_snprintf_int  SIZE FORMAT  INT
542 **
543 ** Test the of sqlite3_snprintf() routine.  SIZE is the size of the
544 ** output buffer in bytes.  The maximum size is 100.  FORMAT is the
545 ** format string.  INT is a single integer argument.  The FORMAT
546 ** string must require no more than this one integer argument.  If
547 ** You pass in a format string that requires more than one argument,
548 ** bad things will happen.
549 */
550 static int test_snprintf_int(
551   void *NotUsed,
552   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
553   int argc,              /* Number of arguments */
554   char **argv            /* Text of each argument */
555 ){
556   char zStr[100];
557   int n = atoi(argv[1]);
558   const char *zFormat = argv[2];
559   int a1 = atoi(argv[3]);
560   if( n>sizeof(zStr) ) n = sizeof(zStr);
561   sqlite3_snprintf(sizeof(zStr), zStr, "abcdefghijklmnopqrstuvwxyz");
562   sqlite3_snprintf(n, zStr, zFormat, a1);
563   Tcl_AppendResult(interp, zStr, 0);
564   return TCL_OK;
565 }
566 
567 #ifndef SQLITE_OMIT_GET_TABLE
568 
569 /*
570 ** Usage:  sqlite3_get_table_printf  DB  FORMAT  STRING  ?--no-counts?
571 **
572 ** Invoke the sqlite3_get_table_printf() interface using the open database
573 ** DB.  The SQL is the string FORMAT.  The format string should contain
574 ** one %s or %q.  STRING is the value inserted into %s or %q.
575 */
576 static int test_get_table_printf(
577   void *NotUsed,
578   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
579   int argc,              /* Number of arguments */
580   char **argv            /* Text of each argument */
581 ){
582   sqlite3 *db;
583   Tcl_DString str;
584   int rc;
585   char *zErr = 0;
586   int nRow, nCol;
587   char **aResult;
588   int i;
589   char zBuf[30];
590   char *zSql;
591   int resCount = -1;
592   if( argc==5 ){
593     if( Tcl_GetInt(interp, argv[4], &resCount) ) return TCL_ERROR;
594   }
595   if( argc!=4 && argc!=5 ){
596     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
597        " DB FORMAT STRING ?COUNT?", 0);
598     return TCL_ERROR;
599   }
600   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
601   Tcl_DStringInit(&str);
602   zSql = sqlite3_mprintf(argv[2],argv[3]);
603   if( argc==5 ){
604     rc = sqlite3_get_table(db, zSql, &aResult, 0, 0, &zErr);
605   }else{
606     rc = sqlite3_get_table(db, zSql, &aResult, &nRow, &nCol, &zErr);
607     resCount = (nRow+1)*nCol;
608   }
609   sqlite3_free(zSql);
610   sprintf(zBuf, "%d", rc);
611   Tcl_AppendElement(interp, zBuf);
612   if( rc==SQLITE_OK ){
613     if( argc==4 ){
614       sprintf(zBuf, "%d", nRow);
615       Tcl_AppendElement(interp, zBuf);
616       sprintf(zBuf, "%d", nCol);
617       Tcl_AppendElement(interp, zBuf);
618     }
619     for(i=0; i<resCount; i++){
620       Tcl_AppendElement(interp, aResult[i] ? aResult[i] : "NULL");
621     }
622   }else{
623     Tcl_AppendElement(interp, zErr);
624   }
625   sqlite3_free_table(aResult);
626   if( zErr ) sqlite3_free(zErr);
627   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
628   return TCL_OK;
629 }
630 
631 #endif /* SQLITE_OMIT_GET_TABLE */
632 
633 
634 /*
635 ** Usage:  sqlite3_last_insert_rowid DB
636 **
637 ** Returns the integer ROWID of the most recent insert.
638 */
639 static int test_last_rowid(
640   void *NotUsed,
641   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
642   int argc,              /* Number of arguments */
643   char **argv            /* Text of each argument */
644 ){
645   sqlite3 *db;
646   char zBuf[30];
647 
648   if( argc!=2 ){
649     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB\"", 0);
650     return TCL_ERROR;
651   }
652   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
653   sprintf(zBuf, "%lld", sqlite3_last_insert_rowid(db));
654   Tcl_AppendResult(interp, zBuf, 0);
655   return SQLITE_OK;
656 }
657 
658 /*
659 ** Usage:  sqlite3_key DB KEY
660 **
661 ** Set the codec key.
662 */
663 static int test_key(
664   void *NotUsed,
665   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
666   int argc,              /* Number of arguments */
667   char **argv            /* Text of each argument */
668 ){
669   sqlite3 *db;
670   const char *zKey;
671   int nKey;
672   if( argc!=3 ){
673     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
674        " FILENAME\"", 0);
675     return TCL_ERROR;
676   }
677   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
678   zKey = argv[2];
679   nKey = strlen(zKey);
680 #ifdef SQLITE_HAS_CODEC
681   sqlite3_key(db, zKey, nKey);
682 #endif
683   return TCL_OK;
684 }
685 
686 /*
687 ** Usage:  sqlite3_rekey DB KEY
688 **
689 ** Change the codec key.
690 */
691 static int test_rekey(
692   void *NotUsed,
693   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
694   int argc,              /* Number of arguments */
695   char **argv            /* Text of each argument */
696 ){
697   sqlite3 *db;
698   const char *zKey;
699   int nKey;
700   if( argc!=3 ){
701     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
702        " FILENAME\"", 0);
703     return TCL_ERROR;
704   }
705   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
706   zKey = argv[2];
707   nKey = strlen(zKey);
708 #ifdef SQLITE_HAS_CODEC
709   sqlite3_rekey(db, zKey, nKey);
710 #endif
711   return TCL_OK;
712 }
713 
714 /*
715 ** Usage:  sqlite3_close DB
716 **
717 ** Closes the database opened by sqlite3_open.
718 */
719 static int sqlite_test_close(
720   void *NotUsed,
721   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
722   int argc,              /* Number of arguments */
723   char **argv            /* Text of each argument */
724 ){
725   sqlite3 *db;
726   int rc;
727   if( argc!=2 ){
728     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
729        " FILENAME\"", 0);
730     return TCL_ERROR;
731   }
732   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
733   rc = sqlite3_close(db);
734   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
735   return TCL_OK;
736 }
737 
738 /*
739 ** Implementation of the x_coalesce() function.
740 ** Return the first argument non-NULL argument.
741 */
742 static void t1_ifnullFunc(
743   sqlite3_context *context,
744   int argc,
745   sqlite3_value **argv
746 ){
747   int i;
748   for(i=0; i<argc; i++){
749     if( SQLITE_NULL!=sqlite3_value_type(argv[i]) ){
750       int n = sqlite3_value_bytes(argv[i]);
751       sqlite3_result_text(context, (char*)sqlite3_value_text(argv[i]),
752           n, SQLITE_TRANSIENT);
753       break;
754     }
755   }
756 }
757 
758 /*
759 ** These are test functions.    hex8() interprets its argument as
760 ** UTF8 and returns a hex encoding.  hex16le() interprets its argument
761 ** as UTF16le and returns a hex encoding.
762 */
763 static void hex8Func(sqlite3_context *p, int argc, sqlite3_value **argv){
764   const unsigned char *z;
765   int i;
766   char zBuf[200];
767   z = sqlite3_value_text(argv[0]);
768   for(i=0; i<sizeof(zBuf)/2 - 2 && z[i]; i++){
769     sprintf(&zBuf[i*2], "%02x", z[i]&0xff);
770   }
771   zBuf[i*2] = 0;
772   sqlite3_result_text(p, (char*)zBuf, -1, SQLITE_TRANSIENT);
773 }
774 #ifndef SQLITE_OMIT_UTF16
775 static void hex16Func(sqlite3_context *p, int argc, sqlite3_value **argv){
776   const unsigned short int *z;
777   int i;
778   char zBuf[400];
779   z = sqlite3_value_text16(argv[0]);
780   for(i=0; i<sizeof(zBuf)/4 - 4 && z[i]; i++){
781     sprintf(&zBuf[i*4], "%04x", z[i]&0xff);
782   }
783   zBuf[i*4] = 0;
784   sqlite3_result_text(p, (char*)zBuf, -1, SQLITE_TRANSIENT);
785 }
786 #endif
787 
788 /*
789 ** A structure into which to accumulate text.
790 */
791 struct dstr {
792   int nAlloc;  /* Space allocated */
793   int nUsed;   /* Space used */
794   char *z;     /* The space */
795 };
796 
797 /*
798 ** Append text to a dstr
799 */
800 static void dstrAppend(struct dstr *p, const char *z, int divider){
801   int n = strlen(z);
802   if( p->nUsed + n + 2 > p->nAlloc ){
803     char *zNew;
804     p->nAlloc = p->nAlloc*2 + n + 200;
805     zNew = sqlite3_realloc(p->z, p->nAlloc);
806     if( zNew==0 ){
807       sqlite3_free(p->z);
808       memset(p, 0, sizeof(*p));
809       return;
810     }
811     p->z = zNew;
812   }
813   if( divider && p->nUsed>0 ){
814     p->z[p->nUsed++] = divider;
815   }
816   memcpy(&p->z[p->nUsed], z, n+1);
817   p->nUsed += n;
818 }
819 
820 /*
821 ** Invoked for each callback from sqlite3ExecFunc
822 */
823 static int execFuncCallback(void *pData, int argc, char **argv, char **NotUsed){
824   struct dstr *p = (struct dstr*)pData;
825   int i;
826   for(i=0; i<argc; i++){
827     if( argv[i]==0 ){
828       dstrAppend(p, "NULL", ' ');
829     }else{
830       dstrAppend(p, argv[i], ' ');
831     }
832   }
833   return 0;
834 }
835 
836 /*
837 ** Implementation of the x_sqlite_exec() function.  This function takes
838 ** a single argument and attempts to execute that argument as SQL code.
839 ** This is illegal and should set the SQLITE_MISUSE flag on the database.
840 **
841 ** 2004-Jan-07:  We have changed this to make it legal to call sqlite3_exec()
842 ** from within a function call.
843 **
844 ** This routine simulates the effect of having two threads attempt to
845 ** use the same database at the same time.
846 */
847 static void sqlite3ExecFunc(
848   sqlite3_context *context,
849   int argc,
850   sqlite3_value **argv
851 ){
852   struct dstr x;
853   memset(&x, 0, sizeof(x));
854   (void)sqlite3_exec((sqlite3*)sqlite3_user_data(context),
855       (char*)sqlite3_value_text(argv[0]),
856       execFuncCallback, &x, 0);
857   sqlite3_result_text(context, x.z, x.nUsed, SQLITE_TRANSIENT);
858   sqlite3_free(x.z);
859 }
860 
861 /*
862 ** Implementation of tkt2213func(), a scalar function that takes exactly
863 ** one argument. It has two interesting features:
864 **
865 ** * It calls sqlite3_value_text() 3 times on the argument sqlite3_value*.
866 **   If the three pointers returned are not the same an SQL error is raised.
867 **
868 ** * Otherwise it returns a copy of the text representation of its
869 **   argument in such a way as the VDBE representation is a Mem* cell
870 **   with the MEM_Term flag clear.
871 **
872 ** Ticket #2213 can therefore be tested by evaluating the following
873 ** SQL expression:
874 **
875 **   tkt2213func(tkt2213func('a string'));
876 */
877 static void tkt2213Function(
878   sqlite3_context *context,
879   int argc,
880   sqlite3_value **argv
881 ){
882   int nText;
883   unsigned char const *zText1;
884   unsigned char const *zText2;
885   unsigned char const *zText3;
886 
887   nText = sqlite3_value_bytes(argv[0]);
888   zText1 = sqlite3_value_text(argv[0]);
889   zText2 = sqlite3_value_text(argv[0]);
890   zText3 = sqlite3_value_text(argv[0]);
891 
892   if( zText1!=zText2 || zText2!=zText3 ){
893     sqlite3_result_error(context, "tkt2213 is not fixed", -1);
894   }else{
895     char *zCopy = (char *)sqlite3_malloc(nText);
896     memcpy(zCopy, zText1, nText);
897     sqlite3_result_text(context, zCopy, nText, sqlite3_free);
898   }
899 }
900 
901 /*
902 ** The following SQL function takes 4 arguments.  The 2nd and
903 ** 4th argument must be one of these strings:  'text', 'text16',
904 ** or 'blob' corresponding to API functions
905 **
906 **      sqlite3_value_text()
907 **      sqlite3_value_text16()
908 **      sqlite3_value_blob()
909 **
910 ** The third argument is a string, either 'bytes' or 'bytes16' or 'noop',
911 ** corresponding to APIs:
912 **
913 **      sqlite3_value_bytes()
914 **      sqlite3_value_bytes16()
915 **      noop
916 **
917 ** The APIs designated by the 2nd through 4th arguments are applied
918 ** to the first argument in order.  If the pointers returned by the
919 ** second and fourth are different, this routine returns 1.  Otherwise,
920 ** this routine returns 0.
921 **
922 ** This function is used to test to see when returned pointers from
923 ** the _text(), _text16() and _blob() APIs become invalidated.
924 */
925 static void ptrChngFunction(
926   sqlite3_context *context,
927   int argc,
928   sqlite3_value **argv
929 ){
930   const void *p1, *p2;
931   const char *zCmd;
932   if( argc!=4 ) return;
933   zCmd = (const char*)sqlite3_value_text(argv[1]);
934   if( zCmd==0 ) return;
935   if( strcmp(zCmd,"text")==0 ){
936     p1 = (const void*)sqlite3_value_text(argv[0]);
937 #ifndef SQLITE_OMIT_UTF16
938   }else if( strcmp(zCmd, "text16")==0 ){
939     p1 = (const void*)sqlite3_value_text16(argv[0]);
940 #endif
941   }else if( strcmp(zCmd, "blob")==0 ){
942     p1 = (const void*)sqlite3_value_blob(argv[0]);
943   }else{
944     return;
945   }
946   zCmd = (const char*)sqlite3_value_text(argv[2]);
947   if( zCmd==0 ) return;
948   if( strcmp(zCmd,"bytes")==0 ){
949     sqlite3_value_bytes(argv[0]);
950 #ifndef SQLITE_OMIT_UTF16
951   }else if( strcmp(zCmd, "bytes16")==0 ){
952     sqlite3_value_bytes16(argv[0]);
953 #endif
954   }else if( strcmp(zCmd, "noop")==0 ){
955     /* do nothing */
956   }else{
957     return;
958   }
959   zCmd = (const char*)sqlite3_value_text(argv[3]);
960   if( zCmd==0 ) return;
961   if( strcmp(zCmd,"text")==0 ){
962     p2 = (const void*)sqlite3_value_text(argv[0]);
963 #ifndef SQLITE_OMIT_UTF16
964   }else if( strcmp(zCmd, "text16")==0 ){
965     p2 = (const void*)sqlite3_value_text16(argv[0]);
966 #endif
967   }else if( strcmp(zCmd, "blob")==0 ){
968     p2 = (const void*)sqlite3_value_blob(argv[0]);
969   }else{
970     return;
971   }
972   sqlite3_result_int(context, p1!=p2);
973 }
974 
975 
976 /*
977 ** Usage:  sqlite_test_create_function DB
978 **
979 ** Call the sqlite3_create_function API on the given database in order
980 ** to create a function named "x_coalesce".  This function does the same thing
981 ** as the "coalesce" function.  This function also registers an SQL function
982 ** named "x_sqlite_exec" that invokes sqlite3_exec().  Invoking sqlite3_exec()
983 ** in this way is illegal recursion and should raise an SQLITE_MISUSE error.
984 ** The effect is similar to trying to use the same database connection from
985 ** two threads at the same time.
986 **
987 ** The original motivation for this routine was to be able to call the
988 ** sqlite3_create_function function while a query is in progress in order
989 ** to test the SQLITE_MISUSE detection logic.
990 */
991 static int test_create_function(
992   void *NotUsed,
993   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
994   int argc,              /* Number of arguments */
995   char **argv            /* Text of each argument */
996 ){
997   int rc;
998   sqlite3 *db;
999 
1000   if( argc!=2 ){
1001     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1002        " DB\"", 0);
1003     return TCL_ERROR;
1004   }
1005   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1006   rc = sqlite3_create_function(db, "x_coalesce", -1, SQLITE_ANY, 0,
1007         t1_ifnullFunc, 0, 0);
1008   if( rc==SQLITE_OK ){
1009     rc = sqlite3_create_function(db, "hex8", 1, SQLITE_ANY, 0,
1010           hex8Func, 0, 0);
1011   }
1012 #ifndef SQLITE_OMIT_UTF16
1013   if( rc==SQLITE_OK ){
1014     rc = sqlite3_create_function(db, "hex16", 1, SQLITE_ANY, 0,
1015           hex16Func, 0, 0);
1016   }
1017 #endif
1018   if( rc==SQLITE_OK ){
1019     rc = sqlite3_create_function(db, "tkt2213func", 1, SQLITE_ANY, 0,
1020           tkt2213Function, 0, 0);
1021   }
1022   if( rc==SQLITE_OK ){
1023     rc = sqlite3_create_function(db, "pointer_change", 4, SQLITE_ANY, 0,
1024           ptrChngFunction, 0, 0);
1025   }
1026 
1027 #ifndef SQLITE_OMIT_UTF16
1028   /* Use the sqlite3_create_function16() API here. Mainly for fun, but also
1029   ** because it is not tested anywhere else. */
1030   if( rc==SQLITE_OK ){
1031     const void *zUtf16;
1032     sqlite3_value *pVal;
1033     sqlite3_mutex_enter(db->mutex);
1034     pVal = sqlite3ValueNew(db);
1035     sqlite3ValueSetStr(pVal, -1, "x_sqlite_exec", SQLITE_UTF8, SQLITE_STATIC);
1036     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
1037     if( db->mallocFailed ){
1038       rc = SQLITE_NOMEM;
1039     }else{
1040       rc = sqlite3_create_function16(db, zUtf16,
1041                 1, SQLITE_UTF16, db, sqlite3ExecFunc, 0, 0);
1042     }
1043     sqlite3ValueFree(pVal);
1044     sqlite3_mutex_leave(db->mutex);
1045   }
1046 #endif
1047 
1048   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1049   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
1050   return TCL_OK;
1051 }
1052 
1053 /*
1054 ** Routines to implement the x_count() aggregate function.
1055 **
1056 ** x_count() counts the number of non-null arguments.  But there are
1057 ** some twists for testing purposes.
1058 **
1059 ** If the argument to x_count() is 40 then a UTF-8 error is reported
1060 ** on the step function.  If x_count(41) is seen, then a UTF-16 error
1061 ** is reported on the step function.  If the total count is 42, then
1062 ** a UTF-8 error is reported on the finalize function.
1063 */
1064 typedef struct t1CountCtx t1CountCtx;
1065 struct t1CountCtx {
1066   int n;
1067 };
1068 static void t1CountStep(
1069   sqlite3_context *context,
1070   int argc,
1071   sqlite3_value **argv
1072 ){
1073   t1CountCtx *p;
1074   p = sqlite3_aggregate_context(context, sizeof(*p));
1075   if( (argc==0 || SQLITE_NULL!=sqlite3_value_type(argv[0]) ) && p ){
1076     p->n++;
1077   }
1078   if( argc>0 ){
1079     int v = sqlite3_value_int(argv[0]);
1080     if( v==40 ){
1081       sqlite3_result_error(context, "value of 40 handed to x_count", -1);
1082 #ifndef SQLITE_OMIT_UTF16
1083     }else if( v==41 ){
1084       const char zUtf16ErrMsg[] = { 0, 0x61, 0, 0x62, 0, 0x63, 0, 0, 0};
1085       sqlite3_result_error16(context, &zUtf16ErrMsg[1-SQLITE_BIGENDIAN], -1);
1086 #endif
1087     }
1088   }
1089 }
1090 static void t1CountFinalize(sqlite3_context *context){
1091   t1CountCtx *p;
1092   p = sqlite3_aggregate_context(context, sizeof(*p));
1093   if( p ){
1094     if( p->n==42 ){
1095       sqlite3_result_error(context, "x_count totals to 42", -1);
1096     }else{
1097       sqlite3_result_int(context, p ? p->n : 0);
1098     }
1099   }
1100 }
1101 
1102 static void legacyCountStep(
1103   sqlite3_context *context,
1104   int argc,
1105   sqlite3_value **argv
1106 ){
1107   /* no-op */
1108 }
1109 
1110 #ifndef SQLITE_OMIT_DEPRECATED
1111 static void legacyCountFinalize(sqlite3_context *context){
1112   sqlite3_result_int(context, sqlite3_aggregate_count(context));
1113 }
1114 #endif
1115 
1116 /*
1117 ** Usage:  sqlite3_create_aggregate DB
1118 **
1119 ** Call the sqlite3_create_function API on the given database in order
1120 ** to create a function named "x_count".  This function is similar
1121 ** to the built-in count() function, with a few special quirks
1122 ** for testing the sqlite3_result_error() APIs.
1123 **
1124 ** The original motivation for this routine was to be able to call the
1125 ** sqlite3_create_aggregate function while a query is in progress in order
1126 ** to test the SQLITE_MISUSE detection logic.  See misuse.test.
1127 **
1128 ** This routine was later extended to test the use of sqlite3_result_error()
1129 ** within aggregate functions.
1130 **
1131 ** Later: It is now also extended to register the aggregate function
1132 ** "legacy_count()" with the supplied database handle. This is used
1133 ** to test the deprecated sqlite3_aggregate_count() API.
1134 */
1135 static int test_create_aggregate(
1136   void *NotUsed,
1137   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1138   int argc,              /* Number of arguments */
1139   char **argv            /* Text of each argument */
1140 ){
1141   sqlite3 *db;
1142   int rc;
1143   if( argc!=2 ){
1144     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1145        " FILENAME\"", 0);
1146     return TCL_ERROR;
1147   }
1148   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1149   rc = sqlite3_create_function(db, "x_count", 0, SQLITE_UTF8, 0, 0,
1150       t1CountStep,t1CountFinalize);
1151   if( rc==SQLITE_OK ){
1152     rc = sqlite3_create_function(db, "x_count", 1, SQLITE_UTF8, 0, 0,
1153         t1CountStep,t1CountFinalize);
1154   }
1155 #ifndef SQLITE_OMIT_DEPRECATED
1156   if( rc==SQLITE_OK ){
1157     rc = sqlite3_create_function(db, "legacy_count", 0, SQLITE_ANY, 0, 0,
1158         legacyCountStep, legacyCountFinalize
1159     );
1160   }
1161 #endif
1162   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1163   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
1164   return TCL_OK;
1165 }
1166 
1167 
1168 /*
1169 ** Usage:  printf TEXT
1170 **
1171 ** Send output to printf.  Use this rather than puts to merge the output
1172 ** in the correct sequence with debugging printfs inserted into C code.
1173 ** Puts uses a separate buffer and debugging statements will be out of
1174 ** sequence if it is used.
1175 */
1176 static int test_printf(
1177   void *NotUsed,
1178   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1179   int argc,              /* Number of arguments */
1180   char **argv            /* Text of each argument */
1181 ){
1182   if( argc!=2 ){
1183     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1184        " TEXT\"", 0);
1185     return TCL_ERROR;
1186   }
1187   printf("%s\n", argv[1]);
1188   return TCL_OK;
1189 }
1190 
1191 
1192 
1193 /*
1194 ** Usage:  sqlite3_mprintf_int FORMAT INTEGER INTEGER INTEGER
1195 **
1196 ** Call mprintf with three integer arguments
1197 */
1198 static int sqlite3_mprintf_int(
1199   void *NotUsed,
1200   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1201   int argc,              /* Number of arguments */
1202   char **argv            /* Text of each argument */
1203 ){
1204   int a[3], i;
1205   char *z;
1206   if( argc!=5 ){
1207     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1208        " FORMAT INT INT INT\"", 0);
1209     return TCL_ERROR;
1210   }
1211   for(i=2; i<5; i++){
1212     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1213   }
1214   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1215   Tcl_AppendResult(interp, z, 0);
1216   sqlite3_free(z);
1217   return TCL_OK;
1218 }
1219 
1220 /*
1221 ** Usage:  sqlite3_mprintf_int64 FORMAT INTEGER INTEGER INTEGER
1222 **
1223 ** Call mprintf with three 64-bit integer arguments
1224 */
1225 static int sqlite3_mprintf_int64(
1226   void *NotUsed,
1227   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1228   int argc,              /* Number of arguments */
1229   char **argv            /* Text of each argument */
1230 ){
1231   int i;
1232   sqlite_int64 a[3];
1233   char *z;
1234   if( argc!=5 ){
1235     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1236        " FORMAT INT INT INT\"", 0);
1237     return TCL_ERROR;
1238   }
1239   for(i=2; i<5; i++){
1240     if( !sqlite3Atoi64(argv[i], &a[i-2]) ){
1241       Tcl_AppendResult(interp, "argument is not a valid 64-bit integer", 0);
1242       return TCL_ERROR;
1243     }
1244   }
1245   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1246   Tcl_AppendResult(interp, z, 0);
1247   sqlite3_free(z);
1248   return TCL_OK;
1249 }
1250 
1251 /*
1252 ** Usage:  sqlite3_mprintf_long FORMAT INTEGER INTEGER INTEGER
1253 **
1254 ** Call mprintf with three long integer arguments.   This might be the
1255 ** same as sqlite3_mprintf_int or sqlite3_mprintf_int64, depending on
1256 ** platform.
1257 */
1258 static int sqlite3_mprintf_long(
1259   void *NotUsed,
1260   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1261   int argc,              /* Number of arguments */
1262   char **argv            /* Text of each argument */
1263 ){
1264   int i;
1265   long int a[3];
1266   int b[3];
1267   char *z;
1268   if( argc!=5 ){
1269     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1270        " FORMAT INT INT INT\"", 0);
1271     return TCL_ERROR;
1272   }
1273   for(i=2; i<5; i++){
1274     if( Tcl_GetInt(interp, argv[i], &b[i-2]) ) return TCL_ERROR;
1275     a[i-2] = (long int)b[i-2];
1276     a[i-2] &= (((u64)1)<<(sizeof(int)*8))-1;
1277   }
1278   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1279   Tcl_AppendResult(interp, z, 0);
1280   sqlite3_free(z);
1281   return TCL_OK;
1282 }
1283 
1284 /*
1285 ** Usage:  sqlite3_mprintf_str FORMAT INTEGER INTEGER STRING
1286 **
1287 ** Call mprintf with two integer arguments and one string argument
1288 */
1289 static int sqlite3_mprintf_str(
1290   void *NotUsed,
1291   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1292   int argc,              /* Number of arguments */
1293   char **argv            /* Text of each argument */
1294 ){
1295   int a[3], i;
1296   char *z;
1297   if( argc<4 || argc>5 ){
1298     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1299        " FORMAT INT INT ?STRING?\"", 0);
1300     return TCL_ERROR;
1301   }
1302   for(i=2; i<4; i++){
1303     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1304   }
1305   z = sqlite3_mprintf(argv[1], a[0], a[1], argc>4 ? argv[4] : NULL);
1306   Tcl_AppendResult(interp, z, 0);
1307   sqlite3_free(z);
1308   return TCL_OK;
1309 }
1310 
1311 /*
1312 ** Usage:  sqlite3_snprintf_str INTEGER FORMAT INTEGER INTEGER STRING
1313 **
1314 ** Call mprintf with two integer arguments and one string argument
1315 */
1316 static int sqlite3_snprintf_str(
1317   void *NotUsed,
1318   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1319   int argc,              /* Number of arguments */
1320   char **argv            /* Text of each argument */
1321 ){
1322   int a[3], i;
1323   int n;
1324   char *z;
1325   if( argc<5 || argc>6 ){
1326     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1327        " INT FORMAT INT INT ?STRING?\"", 0);
1328     return TCL_ERROR;
1329   }
1330   if( Tcl_GetInt(interp, argv[1], &n) ) return TCL_ERROR;
1331   if( n<0 ){
1332     Tcl_AppendResult(interp, "N must be non-negative", 0);
1333     return TCL_ERROR;
1334   }
1335   for(i=3; i<5; i++){
1336     if( Tcl_GetInt(interp, argv[i], &a[i-3]) ) return TCL_ERROR;
1337   }
1338   z = sqlite3_malloc( n+1 );
1339   sqlite3_snprintf(n, z, argv[2], a[0], a[1], argc>4 ? argv[5] : NULL);
1340   Tcl_AppendResult(interp, z, 0);
1341   sqlite3_free(z);
1342   return TCL_OK;
1343 }
1344 
1345 /*
1346 ** Usage:  sqlite3_mprintf_double FORMAT INTEGER INTEGER DOUBLE
1347 **
1348 ** Call mprintf with two integer arguments and one double argument
1349 */
1350 static int sqlite3_mprintf_double(
1351   void *NotUsed,
1352   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1353   int argc,              /* Number of arguments */
1354   char **argv            /* Text of each argument */
1355 ){
1356   int a[3], i;
1357   double r;
1358   char *z;
1359   if( argc!=5 ){
1360     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1361        " FORMAT INT INT DOUBLE\"", 0);
1362     return TCL_ERROR;
1363   }
1364   for(i=2; i<4; i++){
1365     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1366   }
1367   if( Tcl_GetDouble(interp, argv[4], &r) ) return TCL_ERROR;
1368   z = sqlite3_mprintf(argv[1], a[0], a[1], r);
1369   Tcl_AppendResult(interp, z, 0);
1370   sqlite3_free(z);
1371   return TCL_OK;
1372 }
1373 
1374 /*
1375 ** Usage:  sqlite3_mprintf_scaled FORMAT DOUBLE DOUBLE
1376 **
1377 ** Call mprintf with a single double argument which is the product of the
1378 ** two arguments given above.  This is used to generate overflow and underflow
1379 ** doubles to test that they are converted properly.
1380 */
1381 static int sqlite3_mprintf_scaled(
1382   void *NotUsed,
1383   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1384   int argc,              /* Number of arguments */
1385   char **argv            /* Text of each argument */
1386 ){
1387   int i;
1388   double r[2];
1389   char *z;
1390   if( argc!=4 ){
1391     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1392        " FORMAT DOUBLE DOUBLE\"", 0);
1393     return TCL_ERROR;
1394   }
1395   for(i=2; i<4; i++){
1396     if( Tcl_GetDouble(interp, argv[i], &r[i-2]) ) return TCL_ERROR;
1397   }
1398   z = sqlite3_mprintf(argv[1], r[0]*r[1]);
1399   Tcl_AppendResult(interp, z, 0);
1400   sqlite3_free(z);
1401   return TCL_OK;
1402 }
1403 
1404 /*
1405 ** Usage:  sqlite3_mprintf_stronly FORMAT STRING
1406 **
1407 ** Call mprintf with a single double argument which is the product of the
1408 ** two arguments given above.  This is used to generate overflow and underflow
1409 ** doubles to test that they are converted properly.
1410 */
1411 static int sqlite3_mprintf_stronly(
1412   void *NotUsed,
1413   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1414   int argc,              /* Number of arguments */
1415   char **argv            /* Text of each argument */
1416 ){
1417   char *z;
1418   if( argc!=3 ){
1419     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1420        " FORMAT STRING\"", 0);
1421     return TCL_ERROR;
1422   }
1423   z = sqlite3_mprintf(argv[1], argv[2]);
1424   Tcl_AppendResult(interp, z, 0);
1425   sqlite3_free(z);
1426   return TCL_OK;
1427 }
1428 
1429 /*
1430 ** Usage:  sqlite3_mprintf_hexdouble FORMAT HEX
1431 **
1432 ** Call mprintf with a single double argument which is derived from the
1433 ** hexadecimal encoding of an IEEE double.
1434 */
1435 static int sqlite3_mprintf_hexdouble(
1436   void *NotUsed,
1437   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1438   int argc,              /* Number of arguments */
1439   char **argv            /* Text of each argument */
1440 ){
1441   char *z;
1442   double r;
1443   unsigned int x1, x2;
1444   sqlite_uint64 d;
1445   if( argc!=3 ){
1446     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1447        " FORMAT STRING\"", 0);
1448     return TCL_ERROR;
1449   }
1450   if( sscanf(argv[2], "%08x%08x", &x2, &x1)!=2 ){
1451     Tcl_AppendResult(interp, "2nd argument should be 16-characters of hex", 0);
1452     return TCL_ERROR;
1453   }
1454   d = x2;
1455   d = (d<<32) + x1;
1456   memcpy(&r, &d, sizeof(r));
1457   z = sqlite3_mprintf(argv[1], r);
1458   Tcl_AppendResult(interp, z, 0);
1459   sqlite3_free(z);
1460   return TCL_OK;
1461 }
1462 
1463 /*
1464 ** Usage: sqlite3_enable_shared_cache ?BOOLEAN?
1465 **
1466 */
1467 #if !defined(SQLITE_OMIT_SHARED_CACHE)
1468 static int test_enable_shared(
1469   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1470   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1471   int objc,              /* Number of arguments */
1472   Tcl_Obj *CONST objv[]  /* Command arguments */
1473 ){
1474   int rc;
1475   int enable;
1476   int ret = 0;
1477 
1478   if( objc!=2 && objc!=1 ){
1479     Tcl_WrongNumArgs(interp, 1, objv, "?BOOLEAN?");
1480     return TCL_ERROR;
1481   }
1482   ret = sqlite3GlobalConfig.sharedCacheEnabled;
1483 
1484   if( objc==2 ){
1485     if( Tcl_GetBooleanFromObj(interp, objv[1], &enable) ){
1486       return TCL_ERROR;
1487     }
1488     rc = sqlite3_enable_shared_cache(enable);
1489     if( rc!=SQLITE_OK ){
1490       Tcl_SetResult(interp, (char *)sqlite3ErrStr(rc), TCL_STATIC);
1491       return TCL_ERROR;
1492     }
1493   }
1494   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(ret));
1495   return TCL_OK;
1496 }
1497 #endif
1498 
1499 
1500 
1501 /*
1502 ** Usage: sqlite3_extended_result_codes   DB    BOOLEAN
1503 **
1504 */
1505 static int test_extended_result_codes(
1506   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1507   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1508   int objc,              /* Number of arguments */
1509   Tcl_Obj *CONST objv[]  /* Command arguments */
1510 ){
1511   int enable;
1512   sqlite3 *db;
1513 
1514   if( objc!=3 ){
1515     Tcl_WrongNumArgs(interp, 1, objv, "DB BOOLEAN");
1516     return TCL_ERROR;
1517   }
1518   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1519   if( Tcl_GetBooleanFromObj(interp, objv[2], &enable) ) return TCL_ERROR;
1520   sqlite3_extended_result_codes(db, enable);
1521   return TCL_OK;
1522 }
1523 
1524 /*
1525 ** Usage: sqlite3_libversion_number
1526 **
1527 */
1528 static int test_libversion_number(
1529   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1530   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1531   int objc,              /* Number of arguments */
1532   Tcl_Obj *CONST objv[]  /* Command arguments */
1533 ){
1534   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_libversion_number()));
1535   return TCL_OK;
1536 }
1537 
1538 /*
1539 ** Usage: sqlite3_table_column_metadata DB dbname tblname colname
1540 **
1541 */
1542 #ifdef SQLITE_ENABLE_COLUMN_METADATA
1543 static int test_table_column_metadata(
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   sqlite3 *db;
1550   const char *zDb;
1551   const char *zTbl;
1552   const char *zCol;
1553   int rc;
1554   Tcl_Obj *pRet;
1555 
1556   const char *zDatatype;
1557   const char *zCollseq;
1558   int notnull;
1559   int primarykey;
1560   int autoincrement;
1561 
1562   if( objc!=5 ){
1563     Tcl_WrongNumArgs(interp, 1, objv, "DB dbname tblname colname");
1564     return TCL_ERROR;
1565   }
1566   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1567   zDb = Tcl_GetString(objv[2]);
1568   zTbl = Tcl_GetString(objv[3]);
1569   zCol = Tcl_GetString(objv[4]);
1570 
1571   if( strlen(zDb)==0 ) zDb = 0;
1572 
1573   rc = sqlite3_table_column_metadata(db, zDb, zTbl, zCol,
1574       &zDatatype, &zCollseq, &notnull, &primarykey, &autoincrement);
1575 
1576   if( rc!=SQLITE_OK ){
1577     Tcl_AppendResult(interp, sqlite3_errmsg(db), 0);
1578     return TCL_ERROR;
1579   }
1580 
1581   pRet = Tcl_NewObj();
1582   Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zDatatype, -1));
1583   Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zCollseq, -1));
1584   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(notnull));
1585   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(primarykey));
1586   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(autoincrement));
1587   Tcl_SetObjResult(interp, pRet);
1588 
1589   return TCL_OK;
1590 }
1591 #endif
1592 
1593 #ifndef SQLITE_OMIT_INCRBLOB
1594 
1595 /*
1596 ** sqlite3_blob_read  CHANNEL OFFSET N
1597 **
1598 **   This command is used to test the sqlite3_blob_read() in ways that
1599 **   the Tcl channel interface does not. The first argument should
1600 **   be the name of a valid channel created by the [incrblob] method
1601 **   of a database handle. This function calls sqlite3_blob_read()
1602 **   to read N bytes from offset OFFSET from the underlying SQLite
1603 **   blob handle.
1604 **
1605 **   On success, a byte-array object containing the read data is
1606 **   returned. On failure, the interpreter result is set to the
1607 **   text representation of the returned error code (i.e. "SQLITE_NOMEM")
1608 **   and a Tcl exception is thrown.
1609 */
1610 static int test_blob_read(
1611   ClientData clientData, /* Not used */
1612   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1613   int objc,              /* Number of arguments */
1614   Tcl_Obj *CONST objv[]  /* Command arguments */
1615 ){
1616   Tcl_Channel channel;
1617   ClientData instanceData;
1618   sqlite3_blob *pBlob;
1619   int notUsed;
1620   int nByte;
1621   int iOffset;
1622   unsigned char *zBuf;
1623   int rc;
1624 
1625   if( objc!=4 ){
1626     Tcl_WrongNumArgs(interp, 1, objv, "CHANNEL OFFSET N");
1627     return TCL_ERROR;
1628   }
1629 
1630   channel = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), &notUsed);
1631   if( !channel
1632    || TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &iOffset)
1633    || TCL_OK!=Tcl_GetIntFromObj(interp, objv[3], &nByte)
1634    || nByte<0 || iOffset<0
1635   ){
1636     return TCL_ERROR;
1637   }
1638 
1639   instanceData = Tcl_GetChannelInstanceData(channel);
1640   pBlob = *((sqlite3_blob **)instanceData);
1641 
1642   zBuf = (unsigned char *)Tcl_Alloc(nByte);
1643   rc = sqlite3_blob_read(pBlob, zBuf, nByte, iOffset);
1644   if( rc==SQLITE_OK ){
1645     Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zBuf, nByte));
1646   }else{
1647     Tcl_SetResult(interp, (char *)sqlite3TestErrorName(rc), TCL_VOLATILE);
1648   }
1649   Tcl_Free((char *)zBuf);
1650 
1651   return (rc==SQLITE_OK ? TCL_OK : TCL_ERROR);
1652 }
1653 
1654 /*
1655 ** sqlite3_blob_write CHANNEL OFFSET DATA ?NDATA?
1656 **
1657 **   This command is used to test the sqlite3_blob_write() in ways that
1658 **   the Tcl channel interface does not. The first argument should
1659 **   be the name of a valid channel created by the [incrblob] method
1660 **   of a database handle. This function calls sqlite3_blob_write()
1661 **   to write the DATA byte-array to the underlying SQLite blob handle.
1662 **   at offset OFFSET.
1663 **
1664 **   On success, an empty string is returned. On failure, the interpreter
1665 **   result is set to the text representation of the returned error code
1666 **   (i.e. "SQLITE_NOMEM") and a Tcl exception is thrown.
1667 */
1668 static int test_blob_write(
1669   ClientData clientData, /* Not used */
1670   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1671   int objc,              /* Number of arguments */
1672   Tcl_Obj *CONST objv[]  /* Command arguments */
1673 ){
1674   Tcl_Channel channel;
1675   ClientData instanceData;
1676   sqlite3_blob *pBlob;
1677   int notUsed;
1678   int iOffset;
1679   int rc;
1680 
1681   unsigned char *zBuf;
1682   int nBuf;
1683 
1684   if( objc!=4 && objc!=5 ){
1685     Tcl_WrongNumArgs(interp, 1, objv, "CHANNEL OFFSET DATA ?NDATA?");
1686     return TCL_ERROR;
1687   }
1688 
1689   channel = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), &notUsed);
1690   if( !channel || TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &iOffset) ){
1691     return TCL_ERROR;
1692   }
1693 
1694   instanceData = Tcl_GetChannelInstanceData(channel);
1695   pBlob = *((sqlite3_blob **)instanceData);
1696 
1697   zBuf = Tcl_GetByteArrayFromObj(objv[3], &nBuf);
1698   if( objc==5 && Tcl_GetIntFromObj(interp, objv[4], &nBuf) ){
1699     return TCL_ERROR;
1700   }
1701   rc = sqlite3_blob_write(pBlob, zBuf, nBuf, iOffset);
1702   if( rc!=SQLITE_OK ){
1703     Tcl_SetResult(interp, (char *)sqlite3TestErrorName(rc), TCL_VOLATILE);
1704   }
1705 
1706   return (rc==SQLITE_OK ? TCL_OK : TCL_ERROR);
1707 }
1708 #endif
1709 
1710 /*
1711 ** Usage: sqlite3_create_collation_v2 DB-HANDLE NAME CMP-PROC DEL-PROC
1712 **
1713 **   This Tcl proc is used for testing the experimental
1714 **   sqlite3_create_collation_v2() interface.
1715 */
1716 struct TestCollationX {
1717   Tcl_Interp *interp;
1718   Tcl_Obj *pCmp;
1719   Tcl_Obj *pDel;
1720 };
1721 typedef struct TestCollationX TestCollationX;
1722 static void testCreateCollationDel(void *pCtx){
1723   TestCollationX *p = (TestCollationX *)pCtx;
1724 
1725   int rc = Tcl_EvalObjEx(p->interp, p->pDel, TCL_EVAL_DIRECT|TCL_EVAL_GLOBAL);
1726   if( rc!=TCL_OK ){
1727     Tcl_BackgroundError(p->interp);
1728   }
1729 
1730   Tcl_DecrRefCount(p->pCmp);
1731   Tcl_DecrRefCount(p->pDel);
1732   sqlite3_free((void *)p);
1733 }
1734 static int testCreateCollationCmp(
1735   void *pCtx,
1736   int nLeft,
1737   const void *zLeft,
1738   int nRight,
1739   const void *zRight
1740 ){
1741   TestCollationX *p = (TestCollationX *)pCtx;
1742   Tcl_Obj *pScript = Tcl_DuplicateObj(p->pCmp);
1743   int iRes = 0;
1744 
1745   Tcl_IncrRefCount(pScript);
1746   Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj((char *)zLeft, nLeft));
1747   Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj((char *)zRight,nRight));
1748 
1749   if( TCL_OK!=Tcl_EvalObjEx(p->interp, pScript, TCL_EVAL_DIRECT|TCL_EVAL_GLOBAL)
1750    || TCL_OK!=Tcl_GetIntFromObj(p->interp, Tcl_GetObjResult(p->interp), &iRes)
1751   ){
1752     Tcl_BackgroundError(p->interp);
1753   }
1754   Tcl_DecrRefCount(pScript);
1755 
1756   return iRes;
1757 }
1758 static int test_create_collation_v2(
1759   ClientData clientData, /* Not used */
1760   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1761   int objc,              /* Number of arguments */
1762   Tcl_Obj *CONST objv[]  /* Command arguments */
1763 ){
1764   TestCollationX *p;
1765   sqlite3 *db;
1766   int rc;
1767 
1768   if( objc!=5 ){
1769     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE NAME CMP-PROC DEL-PROC");
1770     return TCL_ERROR;
1771   }
1772   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1773 
1774   p = (TestCollationX *)sqlite3_malloc(sizeof(TestCollationX));
1775   p->pCmp = objv[3];
1776   p->pDel = objv[4];
1777   p->interp = interp;
1778   Tcl_IncrRefCount(p->pCmp);
1779   Tcl_IncrRefCount(p->pDel);
1780 
1781   rc = sqlite3_create_collation_v2(db, Tcl_GetString(objv[2]), 16,
1782       (void *)p, testCreateCollationCmp, testCreateCollationDel
1783   );
1784   if( rc!=SQLITE_MISUSE ){
1785     Tcl_AppendResult(interp, "sqlite3_create_collate_v2() failed to detect "
1786       "an invalid encoding", (char*)0);
1787     return TCL_ERROR;
1788   }
1789   rc = sqlite3_create_collation_v2(db, Tcl_GetString(objv[2]), SQLITE_UTF8,
1790       (void *)p, testCreateCollationCmp, testCreateCollationDel
1791   );
1792   return TCL_OK;
1793 }
1794 
1795 /*
1796 ** Usage: sqlite3_load_extension DB-HANDLE FILE ?PROC?
1797 */
1798 static int test_load_extension(
1799   ClientData clientData, /* Not used */
1800   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1801   int objc,              /* Number of arguments */
1802   Tcl_Obj *CONST objv[]  /* Command arguments */
1803 ){
1804   Tcl_CmdInfo cmdInfo;
1805   sqlite3 *db;
1806   int rc;
1807   char *zDb;
1808   char *zFile;
1809   char *zProc = 0;
1810   char *zErr = 0;
1811 
1812   if( objc!=4 && objc!=3 ){
1813     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE FILE ?PROC?");
1814     return TCL_ERROR;
1815   }
1816   zDb = Tcl_GetString(objv[1]);
1817   zFile = Tcl_GetString(objv[2]);
1818   if( objc==4 ){
1819     zProc = Tcl_GetString(objv[3]);
1820   }
1821 
1822   /* Extract the C database handle from the Tcl command name */
1823   if( !Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
1824     Tcl_AppendResult(interp, "command not found: ", zDb, (char*)0);
1825     return TCL_ERROR;
1826   }
1827   db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
1828   assert(db);
1829 
1830   /* Call the underlying C function. If an error occurs, set rc to
1831   ** TCL_ERROR and load any error string into the interpreter. If no
1832   ** error occurs, set rc to TCL_OK.
1833   */
1834 #ifdef SQLITE_OMIT_LOAD_EXTENSION
1835   rc = SQLITE_ERROR;
1836   zErr = sqlite3_mprintf("this build omits sqlite3_load_extension()");
1837 #else
1838   rc = sqlite3_load_extension(db, zFile, zProc, &zErr);
1839 #endif
1840   if( rc!=SQLITE_OK ){
1841     Tcl_SetResult(interp, zErr ? zErr : "", TCL_VOLATILE);
1842     rc = TCL_ERROR;
1843   }else{
1844     rc = TCL_OK;
1845   }
1846   sqlite3_free(zErr);
1847 
1848   return rc;
1849 }
1850 
1851 /*
1852 ** Usage: sqlite3_enable_load_extension DB-HANDLE ONOFF
1853 */
1854 static int test_enable_load(
1855   ClientData clientData, /* Not used */
1856   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1857   int objc,              /* Number of arguments */
1858   Tcl_Obj *CONST objv[]  /* Command arguments */
1859 ){
1860   Tcl_CmdInfo cmdInfo;
1861   sqlite3 *db;
1862   char *zDb;
1863   int onoff;
1864 
1865   if( objc!=3 ){
1866     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE ONOFF");
1867     return TCL_ERROR;
1868   }
1869   zDb = Tcl_GetString(objv[1]);
1870 
1871   /* Extract the C database handle from the Tcl command name */
1872   if( !Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
1873     Tcl_AppendResult(interp, "command not found: ", zDb, (char*)0);
1874     return TCL_ERROR;
1875   }
1876   db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
1877   assert(db);
1878 
1879   /* Get the onoff parameter */
1880   if( Tcl_GetBooleanFromObj(interp, objv[2], &onoff) ){
1881     return TCL_ERROR;
1882   }
1883 
1884 #ifdef SQLITE_OMIT_LOAD_EXTENSION
1885   Tcl_AppendResult(interp, "this build omits sqlite3_load_extension()");
1886   return TCL_ERROR;
1887 #else
1888   sqlite3_enable_load_extension(db, onoff);
1889   return TCL_OK;
1890 #endif
1891 }
1892 
1893 /*
1894 ** Usage:  sqlite_abort
1895 **
1896 ** Shutdown the process immediately.  This is not a clean shutdown.
1897 ** This command is used to test the recoverability of a database in
1898 ** the event of a program crash.
1899 */
1900 static int sqlite_abort(
1901   void *NotUsed,
1902   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1903   int argc,              /* Number of arguments */
1904   char **argv            /* Text of each argument */
1905 ){
1906   assert( interp==0 );   /* This will always fail */
1907   return TCL_OK;
1908 }
1909 
1910 /*
1911 ** The following routine is a user-defined SQL function whose purpose
1912 ** is to test the sqlite_set_result() API.
1913 */
1914 static void testFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
1915   while( argc>=2 ){
1916     const char *zArg0 = (char*)sqlite3_value_text(argv[0]);
1917     if( zArg0 ){
1918       if( 0==sqlite3StrICmp(zArg0, "int") ){
1919         sqlite3_result_int(context, sqlite3_value_int(argv[1]));
1920       }else if( sqlite3StrICmp(zArg0,"int64")==0 ){
1921         sqlite3_result_int64(context, sqlite3_value_int64(argv[1]));
1922       }else if( sqlite3StrICmp(zArg0,"string")==0 ){
1923         sqlite3_result_text(context, (char*)sqlite3_value_text(argv[1]), -1,
1924             SQLITE_TRANSIENT);
1925       }else if( sqlite3StrICmp(zArg0,"double")==0 ){
1926         sqlite3_result_double(context, sqlite3_value_double(argv[1]));
1927       }else if( sqlite3StrICmp(zArg0,"null")==0 ){
1928         sqlite3_result_null(context);
1929       }else if( sqlite3StrICmp(zArg0,"value")==0 ){
1930         sqlite3_result_value(context, argv[sqlite3_value_int(argv[1])]);
1931       }else{
1932         goto error_out;
1933       }
1934     }else{
1935       goto error_out;
1936     }
1937     argc -= 2;
1938     argv += 2;
1939   }
1940   return;
1941 
1942 error_out:
1943   sqlite3_result_error(context,"first argument should be one of: "
1944       "int int64 string double null value", -1);
1945 }
1946 
1947 /*
1948 ** Usage:   sqlite_register_test_function  DB  NAME
1949 **
1950 ** Register the test SQL function on the database DB under the name NAME.
1951 */
1952 static int test_register_func(
1953   void *NotUsed,
1954   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1955   int argc,              /* Number of arguments */
1956   char **argv            /* Text of each argument */
1957 ){
1958   sqlite3 *db;
1959   int rc;
1960   if( argc!=3 ){
1961     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1962        " DB FUNCTION-NAME", 0);
1963     return TCL_ERROR;
1964   }
1965   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1966   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0,
1967       testFunc, 0, 0);
1968   if( rc!=0 ){
1969     Tcl_AppendResult(interp, sqlite3ErrStr(rc), 0);
1970     return TCL_ERROR;
1971   }
1972   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1973   return TCL_OK;
1974 }
1975 
1976 /*
1977 ** Usage:  sqlite3_finalize  STMT
1978 **
1979 ** Finalize a statement handle.
1980 */
1981 static int test_finalize(
1982   void * clientData,
1983   Tcl_Interp *interp,
1984   int objc,
1985   Tcl_Obj *CONST objv[]
1986 ){
1987   sqlite3_stmt *pStmt;
1988   int rc;
1989   sqlite3 *db = 0;
1990 
1991   if( objc!=2 ){
1992     Tcl_AppendResult(interp, "wrong # args: should be \"",
1993         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
1994     return TCL_ERROR;
1995   }
1996 
1997   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
1998 
1999   if( pStmt ){
2000     db = StmtToDb(pStmt);
2001   }
2002   rc = sqlite3_finalize(pStmt);
2003   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2004   if( db && sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2005   return TCL_OK;
2006 }
2007 
2008 /*
2009 ** Usage:  sqlite3_stmt_status  STMT  CODE  RESETFLAG
2010 **
2011 ** Get the value of a status counter from a statement.
2012 */
2013 static int test_stmt_status(
2014   void * clientData,
2015   Tcl_Interp *interp,
2016   int objc,
2017   Tcl_Obj *CONST objv[]
2018 ){
2019   int iValue;
2020   int i, op, resetFlag;
2021   const char *zOpName;
2022   sqlite3_stmt *pStmt;
2023 
2024   static const struct {
2025     const char *zName;
2026     int op;
2027   } aOp[] = {
2028     { "SQLITE_STMTSTATUS_FULLSCAN_STEP",   SQLITE_STMTSTATUS_FULLSCAN_STEP   },
2029     { "SQLITE_STMTSTATUS_SORT",            SQLITE_STMTSTATUS_SORT            },
2030   };
2031   if( objc!=4 ){
2032     Tcl_WrongNumArgs(interp, 1, objv, "STMT PARAMETER RESETFLAG");
2033     return TCL_ERROR;
2034   }
2035   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2036   zOpName = Tcl_GetString(objv[2]);
2037   for(i=0; i<ArraySize(aOp); i++){
2038     if( strcmp(aOp[i].zName, zOpName)==0 ){
2039       op = aOp[i].op;
2040       break;
2041     }
2042   }
2043   if( i>=ArraySize(aOp) ){
2044     if( Tcl_GetIntFromObj(interp, objv[2], &op) ) return TCL_ERROR;
2045   }
2046   if( Tcl_GetBooleanFromObj(interp, objv[3], &resetFlag) ) return TCL_ERROR;
2047   iValue = sqlite3_stmt_status(pStmt, op, resetFlag);
2048   Tcl_SetObjResult(interp, Tcl_NewIntObj(iValue));
2049   return TCL_OK;
2050 }
2051 
2052 /*
2053 ** Usage:  sqlite3_next_stmt  DB  STMT
2054 **
2055 ** Return the next statment in sequence after STMT.
2056 */
2057 static int test_next_stmt(
2058   void * clientData,
2059   Tcl_Interp *interp,
2060   int objc,
2061   Tcl_Obj *CONST objv[]
2062 ){
2063   sqlite3_stmt *pStmt;
2064   sqlite3 *db = 0;
2065   char zBuf[50];
2066 
2067   if( objc!=3 ){
2068     Tcl_AppendResult(interp, "wrong # args: should be \"",
2069         Tcl_GetStringFromObj(objv[0], 0), " DB STMT", 0);
2070     return TCL_ERROR;
2071   }
2072 
2073   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2074   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt) ) return TCL_ERROR;
2075   pStmt = sqlite3_next_stmt(db, pStmt);
2076   if( pStmt ){
2077     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
2078     Tcl_AppendResult(interp, zBuf, 0);
2079   }
2080   return TCL_OK;
2081 }
2082 
2083 
2084 /*
2085 ** Usage:  sqlite3_reset  STMT
2086 **
2087 ** Reset a statement handle.
2088 */
2089 static int test_reset(
2090   void * clientData,
2091   Tcl_Interp *interp,
2092   int objc,
2093   Tcl_Obj *CONST objv[]
2094 ){
2095   sqlite3_stmt *pStmt;
2096   int rc;
2097 
2098   if( objc!=2 ){
2099     Tcl_AppendResult(interp, "wrong # args: should be \"",
2100         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2101     return TCL_ERROR;
2102   }
2103 
2104   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2105 
2106   rc = sqlite3_reset(pStmt);
2107   if( pStmt && sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ){
2108     return TCL_ERROR;
2109   }
2110   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2111 /*
2112   if( rc ){
2113     return TCL_ERROR;
2114   }
2115 */
2116   return TCL_OK;
2117 }
2118 
2119 /*
2120 ** Usage:  sqlite3_expired STMT
2121 **
2122 ** Return TRUE if a recompilation of the statement is recommended.
2123 */
2124 static int test_expired(
2125   void * clientData,
2126   Tcl_Interp *interp,
2127   int objc,
2128   Tcl_Obj *CONST objv[]
2129 ){
2130 #ifndef SQLITE_OMIT_DEPRECATED
2131   sqlite3_stmt *pStmt;
2132   if( objc!=2 ){
2133     Tcl_AppendResult(interp, "wrong # args: should be \"",
2134         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2135     return TCL_ERROR;
2136   }
2137   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2138   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(sqlite3_expired(pStmt)));
2139 #endif
2140   return TCL_OK;
2141 }
2142 
2143 /*
2144 ** Usage:  sqlite3_transfer_bindings FROMSTMT TOSTMT
2145 **
2146 ** Transfer all bindings from FROMSTMT over to TOSTMT
2147 */
2148 static int test_transfer_bind(
2149   void * clientData,
2150   Tcl_Interp *interp,
2151   int objc,
2152   Tcl_Obj *CONST objv[]
2153 ){
2154 #ifndef SQLITE_OMIT_DEPRECATED
2155   sqlite3_stmt *pStmt1, *pStmt2;
2156   if( objc!=3 ){
2157     Tcl_AppendResult(interp, "wrong # args: should be \"",
2158         Tcl_GetStringFromObj(objv[0], 0), " FROM-STMT TO-STMT", 0);
2159     return TCL_ERROR;
2160   }
2161   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt1)) return TCL_ERROR;
2162   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt2)) return TCL_ERROR;
2163   Tcl_SetObjResult(interp,
2164      Tcl_NewIntObj(sqlite3_transfer_bindings(pStmt1,pStmt2)));
2165 #endif
2166   return TCL_OK;
2167 }
2168 
2169 /*
2170 ** Usage:  sqlite3_changes DB
2171 **
2172 ** Return the number of changes made to the database by the last SQL
2173 ** execution.
2174 */
2175 static int test_changes(
2176   void * clientData,
2177   Tcl_Interp *interp,
2178   int objc,
2179   Tcl_Obj *CONST objv[]
2180 ){
2181   sqlite3 *db;
2182   if( objc!=2 ){
2183     Tcl_AppendResult(interp, "wrong # args: should be \"",
2184        Tcl_GetString(objv[0]), " DB", 0);
2185     return TCL_ERROR;
2186   }
2187   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2188   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_changes(db)));
2189   return TCL_OK;
2190 }
2191 
2192 /*
2193 ** This is the "static_bind_value" that variables are bound to when
2194 ** the FLAG option of sqlite3_bind is "static"
2195 */
2196 static char *sqlite_static_bind_value = 0;
2197 static int sqlite_static_bind_nbyte = 0;
2198 
2199 /*
2200 ** Usage:  sqlite3_bind  VM  IDX  VALUE  FLAGS
2201 **
2202 ** Sets the value of the IDX-th occurance of "?" in the original SQL
2203 ** string.  VALUE is the new value.  If FLAGS=="null" then VALUE is
2204 ** ignored and the value is set to NULL.  If FLAGS=="static" then
2205 ** the value is set to the value of a static variable named
2206 ** "sqlite_static_bind_value".  If FLAGS=="normal" then a copy
2207 ** of the VALUE is made.  If FLAGS=="blob10" then a VALUE is ignored
2208 ** an a 10-byte blob "abc\000xyz\000pq" is inserted.
2209 */
2210 static int test_bind(
2211   void *NotUsed,
2212   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2213   int argc,              /* Number of arguments */
2214   char **argv            /* Text of each argument */
2215 ){
2216   sqlite3_stmt *pStmt;
2217   int rc;
2218   int idx;
2219   if( argc!=5 ){
2220     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2221        " VM IDX VALUE (null|static|normal)\"", 0);
2222     return TCL_ERROR;
2223   }
2224   if( getStmtPointer(interp, argv[1], &pStmt) ) return TCL_ERROR;
2225   if( Tcl_GetInt(interp, argv[2], &idx) ) return TCL_ERROR;
2226   if( strcmp(argv[4],"null")==0 ){
2227     rc = sqlite3_bind_null(pStmt, idx);
2228   }else if( strcmp(argv[4],"static")==0 ){
2229     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value, -1, 0);
2230   }else if( strcmp(argv[4],"static-nbytes")==0 ){
2231     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value,
2232                                        sqlite_static_bind_nbyte, 0);
2233   }else if( strcmp(argv[4],"normal")==0 ){
2234     rc = sqlite3_bind_text(pStmt, idx, argv[3], -1, SQLITE_TRANSIENT);
2235   }else if( strcmp(argv[4],"blob10")==0 ){
2236     rc = sqlite3_bind_text(pStmt, idx, "abc\000xyz\000pq", 10, SQLITE_STATIC);
2237   }else{
2238     Tcl_AppendResult(interp, "4th argument should be "
2239         "\"null\" or \"static\" or \"normal\"", 0);
2240     return TCL_ERROR;
2241   }
2242   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2243   if( rc ){
2244     char zBuf[50];
2245     sprintf(zBuf, "(%d) ", rc);
2246     Tcl_AppendResult(interp, zBuf, sqlite3ErrStr(rc), 0);
2247     return TCL_ERROR;
2248   }
2249   return TCL_OK;
2250 }
2251 
2252 #ifndef SQLITE_OMIT_UTF16
2253 /*
2254 ** Usage: add_test_collate <db ptr> <utf8> <utf16le> <utf16be>
2255 **
2256 ** This function is used to test that SQLite selects the correct collation
2257 ** sequence callback when multiple versions (for different text encodings)
2258 ** are available.
2259 **
2260 ** Calling this routine registers the collation sequence "test_collate"
2261 ** with database handle <db>. The second argument must be a list of three
2262 ** boolean values. If the first is true, then a version of test_collate is
2263 ** registered for UTF-8, if the second is true, a version is registered for
2264 ** UTF-16le, if the third is true, a UTF-16be version is available.
2265 ** Previous versions of test_collate are deleted.
2266 **
2267 ** The collation sequence test_collate is implemented by calling the
2268 ** following TCL script:
2269 **
2270 **   "test_collate <enc> <lhs> <rhs>"
2271 **
2272 ** The <lhs> and <rhs> are the two values being compared, encoded in UTF-8.
2273 ** The <enc> parameter is the encoding of the collation function that
2274 ** SQLite selected to call. The TCL test script implements the
2275 ** "test_collate" proc.
2276 **
2277 ** Note that this will only work with one intepreter at a time, as the
2278 ** interp pointer to use when evaluating the TCL script is stored in
2279 ** pTestCollateInterp.
2280 */
2281 static Tcl_Interp* pTestCollateInterp;
2282 static int test_collate_func(
2283   void *pCtx,
2284   int nA, const void *zA,
2285   int nB, const void *zB
2286 ){
2287   Tcl_Interp *i = pTestCollateInterp;
2288   int encin = (int)pCtx;
2289   int res;
2290   int n;
2291 
2292   sqlite3_value *pVal;
2293   Tcl_Obj *pX;
2294 
2295   pX = Tcl_NewStringObj("test_collate", -1);
2296   Tcl_IncrRefCount(pX);
2297 
2298   switch( encin ){
2299     case SQLITE_UTF8:
2300       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-8",-1));
2301       break;
2302     case SQLITE_UTF16LE:
2303       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16LE",-1));
2304       break;
2305     case SQLITE_UTF16BE:
2306       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16BE",-1));
2307       break;
2308     default:
2309       assert(0);
2310   }
2311 
2312   pVal = sqlite3ValueNew(0);
2313   sqlite3ValueSetStr(pVal, nA, zA, encin, SQLITE_STATIC);
2314   n = sqlite3_value_bytes(pVal);
2315   Tcl_ListObjAppendElement(i,pX,
2316       Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2317   sqlite3ValueSetStr(pVal, nB, zB, encin, SQLITE_STATIC);
2318   n = sqlite3_value_bytes(pVal);
2319   Tcl_ListObjAppendElement(i,pX,
2320       Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2321   sqlite3ValueFree(pVal);
2322 
2323   Tcl_EvalObjEx(i, pX, 0);
2324   Tcl_DecrRefCount(pX);
2325   Tcl_GetIntFromObj(i, Tcl_GetObjResult(i), &res);
2326   return res;
2327 }
2328 static int test_collate(
2329   void * clientData,
2330   Tcl_Interp *interp,
2331   int objc,
2332   Tcl_Obj *CONST objv[]
2333 ){
2334   sqlite3 *db;
2335   int val;
2336   sqlite3_value *pVal;
2337   int rc;
2338 
2339   if( objc!=5 ) goto bad_args;
2340   pTestCollateInterp = interp;
2341   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2342 
2343   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2344   rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF8,
2345           (void *)SQLITE_UTF8, val?test_collate_func:0);
2346   if( rc==SQLITE_OK ){
2347     const void *zUtf16;
2348     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2349     rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF16LE,
2350             (void *)SQLITE_UTF16LE, val?test_collate_func:0);
2351     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
2352 
2353 #if 0
2354     if( sqlite3_iMallocFail>0 ){
2355       sqlite3_iMallocFail++;
2356     }
2357 #endif
2358     sqlite3_mutex_enter(db->mutex);
2359     pVal = sqlite3ValueNew(db);
2360     sqlite3ValueSetStr(pVal, -1, "test_collate", SQLITE_UTF8, SQLITE_STATIC);
2361     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
2362     if( db->mallocFailed ){
2363       rc = SQLITE_NOMEM;
2364     }else{
2365       rc = sqlite3_create_collation16(db, zUtf16, SQLITE_UTF16BE,
2366           (void *)SQLITE_UTF16BE, val?test_collate_func:0);
2367     }
2368     sqlite3ValueFree(pVal);
2369     sqlite3_mutex_leave(db->mutex);
2370   }
2371   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2372 
2373   if( rc!=SQLITE_OK ){
2374     Tcl_AppendResult(interp, sqlite3TestErrorName(rc), 0);
2375     return TCL_ERROR;
2376   }
2377   return TCL_OK;
2378 
2379 bad_args:
2380   Tcl_AppendResult(interp, "wrong # args: should be \"",
2381       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
2382   return TCL_ERROR;
2383 }
2384 
2385 /*
2386 ** When the collation needed callback is invoked, record the name of
2387 ** the requested collating function here.  The recorded name is linked
2388 ** to a TCL variable and used to make sure that the requested collation
2389 ** name is correct.
2390 */
2391 static char zNeededCollation[200];
2392 static char *pzNeededCollation = zNeededCollation;
2393 
2394 
2395 /*
2396 ** Called when a collating sequence is needed.  Registered using
2397 ** sqlite3_collation_needed16().
2398 */
2399 static void test_collate_needed_cb(
2400   void *pCtx,
2401   sqlite3 *db,
2402   int eTextRep,
2403   const void *pName
2404 ){
2405   int enc = ENC(db);
2406   int i;
2407   char *z;
2408   for(z = (char*)pName, i=0; *z || z[1]; z++){
2409     if( *z ) zNeededCollation[i++] = *z;
2410   }
2411   zNeededCollation[i] = 0;
2412   sqlite3_create_collation(
2413       db, "test_collate", ENC(db), (void *)enc, test_collate_func);
2414 }
2415 
2416 /*
2417 ** Usage: add_test_collate_needed DB
2418 */
2419 static int test_collate_needed(
2420   void * clientData,
2421   Tcl_Interp *interp,
2422   int objc,
2423   Tcl_Obj *CONST objv[]
2424 ){
2425   sqlite3 *db;
2426   int rc;
2427 
2428   if( objc!=2 ) goto bad_args;
2429   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2430   rc = sqlite3_collation_needed16(db, 0, test_collate_needed_cb);
2431   zNeededCollation[0] = 0;
2432   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2433   return TCL_OK;
2434 
2435 bad_args:
2436   Tcl_WrongNumArgs(interp, 1, objv, "DB");
2437   return TCL_ERROR;
2438 }
2439 
2440 /*
2441 ** tclcmd:   add_alignment_test_collations  DB
2442 **
2443 ** Add two new collating sequences to the database DB
2444 **
2445 **     utf16_aligned
2446 **     utf16_unaligned
2447 **
2448 ** Both collating sequences use the same sort order as BINARY.
2449 ** The only difference is that the utf16_aligned collating
2450 ** sequence is declared with the SQLITE_UTF16_ALIGNED flag.
2451 ** Both collating functions increment the unaligned utf16 counter
2452 ** whenever they see a string that begins on an odd byte boundary.
2453 */
2454 static int unaligned_string_counter = 0;
2455 static int alignmentCollFunc(
2456   void *NotUsed,
2457   int nKey1, const void *pKey1,
2458   int nKey2, const void *pKey2
2459 ){
2460   int rc, n;
2461   n = nKey1<nKey2 ? nKey1 : nKey2;
2462   if( nKey1>0 && 1==(1&(int)pKey1) ) unaligned_string_counter++;
2463   if( nKey2>0 && 1==(1&(int)pKey2) ) unaligned_string_counter++;
2464   rc = memcmp(pKey1, pKey2, n);
2465   if( rc==0 ){
2466     rc = nKey1 - nKey2;
2467   }
2468   return rc;
2469 }
2470 static int add_alignment_test_collations(
2471   void * clientData,
2472   Tcl_Interp *interp,
2473   int objc,
2474   Tcl_Obj *CONST objv[]
2475 ){
2476   sqlite3 *db;
2477   if( objc>=2 ){
2478     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2479     sqlite3_create_collation(db, "utf16_unaligned", SQLITE_UTF16,
2480         0, alignmentCollFunc);
2481     sqlite3_create_collation(db, "utf16_aligned", SQLITE_UTF16_ALIGNED,
2482         0, alignmentCollFunc);
2483   }
2484   return SQLITE_OK;
2485 }
2486 #endif /* !defined(SQLITE_OMIT_UTF16) */
2487 
2488 /*
2489 ** Usage: add_test_function <db ptr> <utf8> <utf16le> <utf16be>
2490 **
2491 ** This function is used to test that SQLite selects the correct user
2492 ** function callback when multiple versions (for different text encodings)
2493 ** are available.
2494 **
2495 ** Calling this routine registers up to three versions of the user function
2496 ** "test_function" with database handle <db>.  If the second argument is
2497 ** true, then a version of test_function is registered for UTF-8, if the
2498 ** third is true, a version is registered for UTF-16le, if the fourth is
2499 ** true, a UTF-16be version is available.  Previous versions of
2500 ** test_function are deleted.
2501 **
2502 ** The user function is implemented by calling the following TCL script:
2503 **
2504 **   "test_function <enc> <arg>"
2505 **
2506 ** Where <enc> is one of UTF-8, UTF-16LE or UTF16BE, and <arg> is the
2507 ** single argument passed to the SQL function. The value returned by
2508 ** the TCL script is used as the return value of the SQL function. It
2509 ** is passed to SQLite using UTF-16BE for a UTF-8 test_function(), UTF-8
2510 ** for a UTF-16LE test_function(), and UTF-16LE for an implementation that
2511 ** prefers UTF-16BE.
2512 */
2513 #ifndef SQLITE_OMIT_UTF16
2514 static void test_function_utf8(
2515   sqlite3_context *pCtx,
2516   int nArg,
2517   sqlite3_value **argv
2518 ){
2519   Tcl_Interp *interp;
2520   Tcl_Obj *pX;
2521   sqlite3_value *pVal;
2522   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
2523   pX = Tcl_NewStringObj("test_function", -1);
2524   Tcl_IncrRefCount(pX);
2525   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-8", -1));
2526   Tcl_ListObjAppendElement(interp, pX,
2527       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
2528   Tcl_EvalObjEx(interp, pX, 0);
2529   Tcl_DecrRefCount(pX);
2530   sqlite3_result_text(pCtx, Tcl_GetStringResult(interp), -1, SQLITE_TRANSIENT);
2531   pVal = sqlite3ValueNew(0);
2532   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
2533       SQLITE_UTF8, SQLITE_STATIC);
2534   sqlite3_result_text16be(pCtx, sqlite3_value_text16be(pVal),
2535       -1, SQLITE_TRANSIENT);
2536   sqlite3ValueFree(pVal);
2537 }
2538 static void test_function_utf16le(
2539   sqlite3_context *pCtx,
2540   int nArg,
2541   sqlite3_value **argv
2542 ){
2543   Tcl_Interp *interp;
2544   Tcl_Obj *pX;
2545   sqlite3_value *pVal;
2546   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
2547   pX = Tcl_NewStringObj("test_function", -1);
2548   Tcl_IncrRefCount(pX);
2549   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16LE", -1));
2550   Tcl_ListObjAppendElement(interp, pX,
2551       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
2552   Tcl_EvalObjEx(interp, pX, 0);
2553   Tcl_DecrRefCount(pX);
2554   pVal = sqlite3ValueNew(0);
2555   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
2556       SQLITE_UTF8, SQLITE_STATIC);
2557   sqlite3_result_text(pCtx,(char*)sqlite3_value_text(pVal),-1,SQLITE_TRANSIENT);
2558   sqlite3ValueFree(pVal);
2559 }
2560 static void test_function_utf16be(
2561   sqlite3_context *pCtx,
2562   int nArg,
2563   sqlite3_value **argv
2564 ){
2565   Tcl_Interp *interp;
2566   Tcl_Obj *pX;
2567   sqlite3_value *pVal;
2568   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
2569   pX = Tcl_NewStringObj("test_function", -1);
2570   Tcl_IncrRefCount(pX);
2571   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16BE", -1));
2572   Tcl_ListObjAppendElement(interp, pX,
2573       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
2574   Tcl_EvalObjEx(interp, pX, 0);
2575   Tcl_DecrRefCount(pX);
2576   pVal = sqlite3ValueNew(0);
2577   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
2578       SQLITE_UTF8, SQLITE_STATIC);
2579   sqlite3_result_text16(pCtx, sqlite3_value_text16le(pVal),
2580       -1, SQLITE_TRANSIENT);
2581   sqlite3_result_text16be(pCtx, sqlite3_value_text16le(pVal),
2582       -1, SQLITE_TRANSIENT);
2583   sqlite3_result_text16le(pCtx, sqlite3_value_text16le(pVal),
2584       -1, SQLITE_TRANSIENT);
2585   sqlite3ValueFree(pVal);
2586 }
2587 #endif /* SQLITE_OMIT_UTF16 */
2588 static int test_function(
2589   void * clientData,
2590   Tcl_Interp *interp,
2591   int objc,
2592   Tcl_Obj *CONST objv[]
2593 ){
2594 #ifndef SQLITE_OMIT_UTF16
2595   sqlite3 *db;
2596   int val;
2597 
2598   if( objc!=5 ) goto bad_args;
2599   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2600 
2601   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2602   if( val ){
2603     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF8,
2604         interp, test_function_utf8, 0, 0);
2605   }
2606   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2607   if( val ){
2608     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16LE,
2609         interp, test_function_utf16le, 0, 0);
2610   }
2611   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
2612   if( val ){
2613     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16BE,
2614         interp, test_function_utf16be, 0, 0);
2615   }
2616 
2617   return TCL_OK;
2618 bad_args:
2619   Tcl_AppendResult(interp, "wrong # args: should be \"",
2620       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
2621 #endif /* SQLITE_OMIT_UTF16 */
2622   return TCL_ERROR;
2623 }
2624 
2625 /*
2626 ** Usage:         test_errstr <err code>
2627 **
2628 ** Test that the english language string equivalents for sqlite error codes
2629 ** are sane. The parameter is an integer representing an sqlite error code.
2630 ** The result is a list of two elements, the string representation of the
2631 ** error code and the english language explanation.
2632 */
2633 static int test_errstr(
2634   void * clientData,
2635   Tcl_Interp *interp,
2636   int objc,
2637   Tcl_Obj *CONST objv[]
2638 ){
2639   char *zCode;
2640   int i;
2641   if( objc!=1 ){
2642     Tcl_WrongNumArgs(interp, 1, objv, "<error code>");
2643   }
2644 
2645   zCode = Tcl_GetString(objv[1]);
2646   for(i=0; i<200; i++){
2647     if( 0==strcmp(t1ErrorName(i), zCode) ) break;
2648   }
2649   Tcl_SetResult(interp, (char *)sqlite3ErrStr(i), 0);
2650   return TCL_OK;
2651 }
2652 
2653 /*
2654 ** Usage:    breakpoint
2655 **
2656 ** This routine exists for one purpose - to provide a place to put a
2657 ** breakpoint with GDB that can be triggered using TCL code.  The use
2658 ** for this is when a particular test fails on (say) the 1485th iteration.
2659 ** In the TCL test script, we can add code like this:
2660 **
2661 **     if {$i==1485} breakpoint
2662 **
2663 ** Then run testfixture in the debugger and wait for the breakpoint to
2664 ** fire.  Then additional breakpoints can be set to trace down the bug.
2665 */
2666 static int test_breakpoint(
2667   void *NotUsed,
2668   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2669   int argc,              /* Number of arguments */
2670   char **argv            /* Text of each argument */
2671 ){
2672   return TCL_OK;         /* Do nothing */
2673 }
2674 
2675 /*
2676 ** Usage:   sqlite3_bind_zeroblob  STMT IDX N
2677 **
2678 ** Test the sqlite3_bind_zeroblob interface.  STMT is a prepared statement.
2679 ** IDX is the index of a wildcard in the prepared statement.  This command
2680 ** binds a N-byte zero-filled BLOB to the wildcard.
2681 */
2682 static int test_bind_zeroblob(
2683   void * clientData,
2684   Tcl_Interp *interp,
2685   int objc,
2686   Tcl_Obj *CONST objv[]
2687 ){
2688   sqlite3_stmt *pStmt;
2689   int idx;
2690   int n;
2691   int rc;
2692 
2693   if( objc!=4 ){
2694     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
2695     return TCL_ERROR;
2696   }
2697 
2698   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2699   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2700   if( Tcl_GetIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
2701 
2702   rc = sqlite3_bind_zeroblob(pStmt, idx, n);
2703   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2704   if( rc!=SQLITE_OK ){
2705     return TCL_ERROR;
2706   }
2707 
2708   return TCL_OK;
2709 }
2710 
2711 /*
2712 ** Usage:   sqlite3_bind_int  STMT N VALUE
2713 **
2714 ** Test the sqlite3_bind_int interface.  STMT is a prepared statement.
2715 ** N is the index of a wildcard in the prepared statement.  This command
2716 ** binds a 32-bit integer VALUE to that wildcard.
2717 */
2718 static int test_bind_int(
2719   void * clientData,
2720   Tcl_Interp *interp,
2721   int objc,
2722   Tcl_Obj *CONST objv[]
2723 ){
2724   sqlite3_stmt *pStmt;
2725   int idx;
2726   int value;
2727   int rc;
2728 
2729   if( objc!=4 ){
2730     Tcl_AppendResult(interp, "wrong # args: should be \"",
2731         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
2732     return TCL_ERROR;
2733   }
2734 
2735   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2736   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2737   if( Tcl_GetIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
2738 
2739   rc = sqlite3_bind_int(pStmt, idx, value);
2740   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2741   if( rc!=SQLITE_OK ){
2742     return TCL_ERROR;
2743   }
2744 
2745   return TCL_OK;
2746 }
2747 
2748 
2749 /*
2750 ** Usage:   sqlite3_bind_int64  STMT N VALUE
2751 **
2752 ** Test the sqlite3_bind_int64 interface.  STMT is a prepared statement.
2753 ** N is the index of a wildcard in the prepared statement.  This command
2754 ** binds a 64-bit integer VALUE to that wildcard.
2755 */
2756 static int test_bind_int64(
2757   void * clientData,
2758   Tcl_Interp *interp,
2759   int objc,
2760   Tcl_Obj *CONST objv[]
2761 ){
2762   sqlite3_stmt *pStmt;
2763   int idx;
2764   i64 value;
2765   int rc;
2766 
2767   if( objc!=4 ){
2768     Tcl_AppendResult(interp, "wrong # args: should be \"",
2769         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
2770     return TCL_ERROR;
2771   }
2772 
2773   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2774   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2775   if( Tcl_GetWideIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
2776 
2777   rc = sqlite3_bind_int64(pStmt, idx, value);
2778   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2779   if( rc!=SQLITE_OK ){
2780     return TCL_ERROR;
2781   }
2782 
2783   return TCL_OK;
2784 }
2785 
2786 
2787 /*
2788 ** Usage:   sqlite3_bind_double  STMT N VALUE
2789 **
2790 ** Test the sqlite3_bind_double interface.  STMT is a prepared statement.
2791 ** N is the index of a wildcard in the prepared statement.  This command
2792 ** binds a 64-bit integer VALUE to that wildcard.
2793 */
2794 static int test_bind_double(
2795   void * clientData,
2796   Tcl_Interp *interp,
2797   int objc,
2798   Tcl_Obj *CONST objv[]
2799 ){
2800   sqlite3_stmt *pStmt;
2801   int idx;
2802   double value;
2803   int rc;
2804   const char *zVal;
2805   int i;
2806   static const struct {
2807     const char *zName;     /* Name of the special floating point value */
2808     unsigned int iUpper;   /* Upper 32 bits */
2809     unsigned int iLower;   /* Lower 32 bits */
2810   } aSpecialFp[] = {
2811     {  "NaN",      0x7fffffff, 0xffffffff },
2812     {  "SNaN",     0x7ff7ffff, 0xffffffff },
2813     {  "-NaN",     0xffffffff, 0xffffffff },
2814     {  "-SNaN",    0xfff7ffff, 0xffffffff },
2815     {  "+Inf",     0x7ff00000, 0x00000000 },
2816     {  "-Inf",     0xfff00000, 0x00000000 },
2817     {  "Epsilon",  0x00000000, 0x00000001 },
2818     {  "-Epsilon", 0x80000000, 0x00000001 },
2819     {  "NaN0",     0x7ff80000, 0x00000000 },
2820     {  "-NaN0",    0xfff80000, 0x00000000 },
2821   };
2822 
2823   if( objc!=4 ){
2824     Tcl_AppendResult(interp, "wrong # args: should be \"",
2825         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
2826     return TCL_ERROR;
2827   }
2828 
2829   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2830   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2831 
2832   /* Intercept the string "NaN" and generate a NaN value for it.
2833   ** All other strings are passed through to Tcl_GetDoubleFromObj().
2834   ** Tcl_GetDoubleFromObj() should understand "NaN" but some versions
2835   ** contain a bug.
2836   */
2837   zVal = Tcl_GetString(objv[3]);
2838   for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
2839     if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
2840       sqlite3_uint64 x;
2841       x = aSpecialFp[i].iUpper;
2842       x <<= 32;
2843       x |= aSpecialFp[i].iLower;
2844       assert( sizeof(value)==8 );
2845       assert( sizeof(x)==8 );
2846       memcpy(&value, &x, 8);
2847       break;
2848     }
2849   }
2850   if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
2851          Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
2852     return TCL_ERROR;
2853   }
2854   rc = sqlite3_bind_double(pStmt, idx, value);
2855   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2856   if( rc!=SQLITE_OK ){
2857     return TCL_ERROR;
2858   }
2859 
2860   return TCL_OK;
2861 }
2862 
2863 /*
2864 ** Usage:   sqlite3_bind_null  STMT N
2865 **
2866 ** Test the sqlite3_bind_null interface.  STMT is a prepared statement.
2867 ** N is the index of a wildcard in the prepared statement.  This command
2868 ** binds a NULL to the wildcard.
2869 */
2870 static int test_bind_null(
2871   void * clientData,
2872   Tcl_Interp *interp,
2873   int objc,
2874   Tcl_Obj *CONST objv[]
2875 ){
2876   sqlite3_stmt *pStmt;
2877   int idx;
2878   int rc;
2879 
2880   if( objc!=3 ){
2881     Tcl_AppendResult(interp, "wrong # args: should be \"",
2882         Tcl_GetStringFromObj(objv[0], 0), " STMT N", 0);
2883     return TCL_ERROR;
2884   }
2885 
2886   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2887   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2888 
2889   rc = sqlite3_bind_null(pStmt, idx);
2890   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2891   if( rc!=SQLITE_OK ){
2892     return TCL_ERROR;
2893   }
2894 
2895   return TCL_OK;
2896 }
2897 
2898 /*
2899 ** Usage:   sqlite3_bind_text  STMT N STRING BYTES
2900 **
2901 ** Test the sqlite3_bind_text interface.  STMT is a prepared statement.
2902 ** N is the index of a wildcard in the prepared statement.  This command
2903 ** binds a UTF-8 string STRING to the wildcard.  The string is BYTES bytes
2904 ** long.
2905 */
2906 static int test_bind_text(
2907   void * clientData,
2908   Tcl_Interp *interp,
2909   int objc,
2910   Tcl_Obj *CONST objv[]
2911 ){
2912   sqlite3_stmt *pStmt;
2913   int idx;
2914   int bytes;
2915   char *value;
2916   int rc;
2917 
2918   if( objc!=5 ){
2919     Tcl_AppendResult(interp, "wrong # args: should be \"",
2920         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
2921     return TCL_ERROR;
2922   }
2923 
2924   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2925   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2926   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &bytes);
2927   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
2928 
2929   rc = sqlite3_bind_text(pStmt, idx, value, bytes, SQLITE_TRANSIENT);
2930   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2931   if( rc!=SQLITE_OK ){
2932     Tcl_AppendResult(interp, sqlite3TestErrorName(rc), 0);
2933     return TCL_ERROR;
2934   }
2935 
2936   return TCL_OK;
2937 }
2938 
2939 /*
2940 ** Usage:   sqlite3_bind_text16 ?-static? STMT N STRING BYTES
2941 **
2942 ** Test the sqlite3_bind_text16 interface.  STMT is a prepared statement.
2943 ** N is the index of a wildcard in the prepared statement.  This command
2944 ** binds a UTF-16 string STRING to the wildcard.  The string is BYTES bytes
2945 ** long.
2946 */
2947 static int test_bind_text16(
2948   void * clientData,
2949   Tcl_Interp *interp,
2950   int objc,
2951   Tcl_Obj *CONST objv[]
2952 ){
2953 #ifndef SQLITE_OMIT_UTF16
2954   sqlite3_stmt *pStmt;
2955   int idx;
2956   int bytes;
2957   char *value;
2958   int rc;
2959 
2960   void (*xDel)() = (objc==6?SQLITE_STATIC:SQLITE_TRANSIENT);
2961   Tcl_Obj *oStmt    = objv[objc-4];
2962   Tcl_Obj *oN       = objv[objc-3];
2963   Tcl_Obj *oString  = objv[objc-2];
2964   Tcl_Obj *oBytes   = objv[objc-1];
2965 
2966   if( objc!=5 && objc!=6){
2967     Tcl_AppendResult(interp, "wrong # args: should be \"",
2968         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
2969     return TCL_ERROR;
2970   }
2971 
2972   if( getStmtPointer(interp, Tcl_GetString(oStmt), &pStmt) ) return TCL_ERROR;
2973   if( Tcl_GetIntFromObj(interp, oN, &idx) ) return TCL_ERROR;
2974   value = (char*)Tcl_GetByteArrayFromObj(oString, 0);
2975   if( Tcl_GetIntFromObj(interp, oBytes, &bytes) ) return TCL_ERROR;
2976 
2977   rc = sqlite3_bind_text16(pStmt, idx, (void *)value, bytes, xDel);
2978   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2979   if( rc!=SQLITE_OK ){
2980     Tcl_AppendResult(interp, sqlite3TestErrorName(rc), 0);
2981     return TCL_ERROR;
2982   }
2983 
2984 #endif /* SQLITE_OMIT_UTF16 */
2985   return TCL_OK;
2986 }
2987 
2988 /*
2989 ** Usage:   sqlite3_bind_blob ?-static? STMT N DATA BYTES
2990 **
2991 ** Test the sqlite3_bind_blob interface.  STMT is a prepared statement.
2992 ** N is the index of a wildcard in the prepared statement.  This command
2993 ** binds a BLOB to the wildcard.  The BLOB is BYTES bytes in size.
2994 */
2995 static int test_bind_blob(
2996   void * clientData,
2997   Tcl_Interp *interp,
2998   int objc,
2999   Tcl_Obj *CONST objv[]
3000 ){
3001   sqlite3_stmt *pStmt;
3002   int idx;
3003   int bytes;
3004   char *value;
3005   int rc;
3006   sqlite3_destructor_type xDestructor = SQLITE_TRANSIENT;
3007 
3008   if( objc!=5 && objc!=6 ){
3009     Tcl_AppendResult(interp, "wrong # args: should be \"",
3010         Tcl_GetStringFromObj(objv[0], 0), " STMT N DATA BYTES", 0);
3011     return TCL_ERROR;
3012   }
3013 
3014   if( objc==6 ){
3015     xDestructor = SQLITE_STATIC;
3016     objv++;
3017   }
3018 
3019   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3020   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3021   value = Tcl_GetString(objv[3]);
3022   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3023 
3024   rc = sqlite3_bind_blob(pStmt, idx, value, bytes, xDestructor);
3025   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3026   if( rc!=SQLITE_OK ){
3027     return TCL_ERROR;
3028   }
3029 
3030   return TCL_OK;
3031 }
3032 
3033 /*
3034 ** Usage:   sqlite3_bind_parameter_count  STMT
3035 **
3036 ** Return the number of wildcards in the given statement.
3037 */
3038 static int test_bind_parameter_count(
3039   void * clientData,
3040   Tcl_Interp *interp,
3041   int objc,
3042   Tcl_Obj *CONST objv[]
3043 ){
3044   sqlite3_stmt *pStmt;
3045 
3046   if( objc!=2 ){
3047     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3048     return TCL_ERROR;
3049   }
3050   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3051   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_bind_parameter_count(pStmt)));
3052   return TCL_OK;
3053 }
3054 
3055 /*
3056 ** Usage:   sqlite3_bind_parameter_name  STMT  N
3057 **
3058 ** Return the name of the Nth wildcard.  The first wildcard is 1.
3059 ** An empty string is returned if N is out of range or if the wildcard
3060 ** is nameless.
3061 */
3062 static int test_bind_parameter_name(
3063   void * clientData,
3064   Tcl_Interp *interp,
3065   int objc,
3066   Tcl_Obj *CONST objv[]
3067 ){
3068   sqlite3_stmt *pStmt;
3069   int i;
3070 
3071   if( objc!=3 ){
3072     Tcl_WrongNumArgs(interp, 1, objv, "STMT N");
3073     return TCL_ERROR;
3074   }
3075   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3076   if( Tcl_GetIntFromObj(interp, objv[2], &i) ) return TCL_ERROR;
3077   Tcl_SetObjResult(interp,
3078      Tcl_NewStringObj(sqlite3_bind_parameter_name(pStmt,i),-1)
3079   );
3080   return TCL_OK;
3081 }
3082 
3083 /*
3084 ** Usage:   sqlite3_bind_parameter_index  STMT  NAME
3085 **
3086 ** Return the index of the wildcard called NAME.  Return 0 if there is
3087 ** no such wildcard.
3088 */
3089 static int test_bind_parameter_index(
3090   void * clientData,
3091   Tcl_Interp *interp,
3092   int objc,
3093   Tcl_Obj *CONST objv[]
3094 ){
3095   sqlite3_stmt *pStmt;
3096 
3097   if( objc!=3 ){
3098     Tcl_WrongNumArgs(interp, 1, objv, "STMT NAME");
3099     return TCL_ERROR;
3100   }
3101   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3102   Tcl_SetObjResult(interp,
3103      Tcl_NewIntObj(
3104        sqlite3_bind_parameter_index(pStmt,Tcl_GetString(objv[2]))
3105      )
3106   );
3107   return TCL_OK;
3108 }
3109 
3110 /*
3111 ** Usage:   sqlite3_clear_bindings STMT
3112 **
3113 */
3114 static int test_clear_bindings(
3115   void * clientData,
3116   Tcl_Interp *interp,
3117   int objc,
3118   Tcl_Obj *CONST objv[]
3119 ){
3120   sqlite3_stmt *pStmt;
3121 
3122   if( objc!=2 ){
3123     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3124     return TCL_ERROR;
3125   }
3126   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3127   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_clear_bindings(pStmt)));
3128   return TCL_OK;
3129 }
3130 
3131 /*
3132 ** Usage:   sqlite3_sleep MILLISECONDS
3133 */
3134 static int test_sleep(
3135   void * clientData,
3136   Tcl_Interp *interp,
3137   int objc,
3138   Tcl_Obj *CONST objv[]
3139 ){
3140   int ms;
3141 
3142   if( objc!=2 ){
3143     Tcl_WrongNumArgs(interp, 1, objv, "MILLISECONDS");
3144     return TCL_ERROR;
3145   }
3146   if( Tcl_GetIntFromObj(interp, objv[1], &ms) ){
3147     return TCL_ERROR;
3148   }
3149   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_sleep(ms)));
3150   return TCL_OK;
3151 }
3152 
3153 /*
3154 ** Usage: sqlite3_extended_errcode DB
3155 **
3156 ** Return the string representation of the most recent sqlite3_* API
3157 ** error code. e.g. "SQLITE_ERROR".
3158 */
3159 static int test_ex_errcode(
3160   void * clientData,
3161   Tcl_Interp *interp,
3162   int objc,
3163   Tcl_Obj *CONST objv[]
3164 ){
3165   sqlite3 *db;
3166   int rc;
3167 
3168   if( objc!=2 ){
3169     Tcl_AppendResult(interp, "wrong # args: should be \"",
3170        Tcl_GetString(objv[0]), " DB", 0);
3171     return TCL_ERROR;
3172   }
3173   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3174   rc = sqlite3_extended_errcode(db);
3175   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
3176   return TCL_OK;
3177 }
3178 
3179 
3180 /*
3181 ** Usage: sqlite3_errcode DB
3182 **
3183 ** Return the string representation of the most recent sqlite3_* API
3184 ** error code. e.g. "SQLITE_ERROR".
3185 */
3186 static int test_errcode(
3187   void * clientData,
3188   Tcl_Interp *interp,
3189   int objc,
3190   Tcl_Obj *CONST objv[]
3191 ){
3192   sqlite3 *db;
3193   int rc;
3194 
3195   if( objc!=2 ){
3196     Tcl_AppendResult(interp, "wrong # args: should be \"",
3197        Tcl_GetString(objv[0]), " DB", 0);
3198     return TCL_ERROR;
3199   }
3200   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3201   rc = sqlite3_errcode(db);
3202   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
3203   return TCL_OK;
3204 }
3205 
3206 /*
3207 ** Usage:   sqlite3_errmsg DB
3208 **
3209 ** Returns the UTF-8 representation of the error message string for the
3210 ** most recent sqlite3_* API call.
3211 */
3212 static int test_errmsg(
3213   void * clientData,
3214   Tcl_Interp *interp,
3215   int objc,
3216   Tcl_Obj *CONST objv[]
3217 ){
3218   sqlite3 *db;
3219   const char *zErr;
3220 
3221   if( objc!=2 ){
3222     Tcl_AppendResult(interp, "wrong # args: should be \"",
3223        Tcl_GetString(objv[0]), " DB", 0);
3224     return TCL_ERROR;
3225   }
3226   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3227 
3228   zErr = sqlite3_errmsg(db);
3229   Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
3230   return TCL_OK;
3231 }
3232 
3233 /*
3234 ** Usage:   test_errmsg16 DB
3235 **
3236 ** Returns the UTF-16 representation of the error message string for the
3237 ** most recent sqlite3_* API call. This is a byte array object at the TCL
3238 ** level, and it includes the 0x00 0x00 terminator bytes at the end of the
3239 ** UTF-16 string.
3240 */
3241 static int test_errmsg16(
3242   void * clientData,
3243   Tcl_Interp *interp,
3244   int objc,
3245   Tcl_Obj *CONST objv[]
3246 ){
3247 #ifndef SQLITE_OMIT_UTF16
3248   sqlite3 *db;
3249   const void *zErr;
3250   const char *z;
3251   int bytes = 0;
3252 
3253   if( objc!=2 ){
3254     Tcl_AppendResult(interp, "wrong # args: should be \"",
3255        Tcl_GetString(objv[0]), " DB", 0);
3256     return TCL_ERROR;
3257   }
3258   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3259 
3260   zErr = sqlite3_errmsg16(db);
3261   if( zErr ){
3262     z = zErr;
3263     for(bytes=0; z[bytes] || z[bytes+1]; bytes+=2){}
3264   }
3265   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zErr, bytes));
3266 #endif /* SQLITE_OMIT_UTF16 */
3267   return TCL_OK;
3268 }
3269 
3270 /*
3271 ** Usage: sqlite3_prepare DB sql bytes ?tailvar?
3272 **
3273 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3274 ** database handle <DB>. The parameter <tailval> is the name of a global
3275 ** variable that is set to the unused portion of <sql> (if any). A
3276 ** STMT handle is returned.
3277 */
3278 static int test_prepare(
3279   void * clientData,
3280   Tcl_Interp *interp,
3281   int objc,
3282   Tcl_Obj *CONST objv[]
3283 ){
3284   sqlite3 *db;
3285   const char *zSql;
3286   int bytes;
3287   const char *zTail = 0;
3288   sqlite3_stmt *pStmt = 0;
3289   char zBuf[50];
3290   int rc;
3291 
3292   if( objc!=5 && objc!=4 ){
3293     Tcl_AppendResult(interp, "wrong # args: should be \"",
3294        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
3295     return TCL_ERROR;
3296   }
3297   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3298   zSql = Tcl_GetString(objv[2]);
3299   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3300 
3301   rc = sqlite3_prepare(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3302   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3303   if( zTail && objc>=5 ){
3304     if( bytes>=0 ){
3305       bytes = bytes - (zTail-zSql);
3306     }
3307     if( strlen(zTail)<bytes ){
3308       bytes = strlen(zTail);
3309     }
3310     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
3311   }
3312   if( rc!=SQLITE_OK ){
3313     assert( pStmt==0 );
3314     sprintf(zBuf, "(%d) ", rc);
3315     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
3316     return TCL_ERROR;
3317   }
3318 
3319   if( pStmt ){
3320     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3321     Tcl_AppendResult(interp, zBuf, 0);
3322   }
3323   return TCL_OK;
3324 }
3325 
3326 /*
3327 ** Usage: sqlite3_prepare_v2 DB sql bytes ?tailvar?
3328 **
3329 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3330 ** database handle <DB>. The parameter <tailval> is the name of a global
3331 ** variable that is set to the unused portion of <sql> (if any). A
3332 ** STMT handle is returned.
3333 */
3334 static int test_prepare_v2(
3335   void * clientData,
3336   Tcl_Interp *interp,
3337   int objc,
3338   Tcl_Obj *CONST objv[]
3339 ){
3340   sqlite3 *db;
3341   const char *zSql;
3342   int bytes;
3343   const char *zTail = 0;
3344   sqlite3_stmt *pStmt = 0;
3345   char zBuf[50];
3346   int rc;
3347 
3348   if( objc!=5 && objc!=4 ){
3349     Tcl_AppendResult(interp, "wrong # args: should be \"",
3350        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
3351     return TCL_ERROR;
3352   }
3353   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3354   zSql = Tcl_GetString(objv[2]);
3355   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3356 
3357   rc = sqlite3_prepare_v2(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3358   assert(rc==SQLITE_OK || pStmt==0);
3359   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3360   if( zTail && objc>=5 ){
3361     if( bytes>=0 ){
3362       bytes = bytes - (zTail-zSql);
3363     }
3364     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
3365   }
3366   if( rc!=SQLITE_OK ){
3367     assert( pStmt==0 );
3368     sprintf(zBuf, "(%d) ", rc);
3369     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
3370     return TCL_ERROR;
3371   }
3372 
3373   if( pStmt ){
3374     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3375     Tcl_AppendResult(interp, zBuf, 0);
3376   }
3377   return TCL_OK;
3378 }
3379 
3380 /*
3381 ** Usage: sqlite3_prepare_tkt3134 DB
3382 **
3383 ** Generate a prepared statement for a zero-byte string as a test
3384 ** for ticket #3134.  The string should be preceeded by a zero byte.
3385 */
3386 static int test_prepare_tkt3134(
3387   void * clientData,
3388   Tcl_Interp *interp,
3389   int objc,
3390   Tcl_Obj *CONST objv[]
3391 ){
3392   sqlite3 *db;
3393   static const char zSql[] = "\000SELECT 1";
3394   sqlite3_stmt *pStmt = 0;
3395   char zBuf[50];
3396   int rc;
3397 
3398   if( objc!=2 ){
3399     Tcl_AppendResult(interp, "wrong # args: should be \"",
3400        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
3401     return TCL_ERROR;
3402   }
3403   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3404   rc = sqlite3_prepare_v2(db, &zSql[1], 0, &pStmt, 0);
3405   assert(rc==SQLITE_OK || pStmt==0);
3406   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3407   if( rc!=SQLITE_OK ){
3408     assert( pStmt==0 );
3409     sprintf(zBuf, "(%d) ", rc);
3410     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
3411     return TCL_ERROR;
3412   }
3413 
3414   if( pStmt ){
3415     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3416     Tcl_AppendResult(interp, zBuf, 0);
3417   }
3418   return TCL_OK;
3419 }
3420 
3421 /*
3422 ** Usage: sqlite3_prepare16 DB sql bytes tailvar
3423 **
3424 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3425 ** database handle <DB>. The parameter <tailval> is the name of a global
3426 ** variable that is set to the unused portion of <sql> (if any). A
3427 ** STMT handle is returned.
3428 */
3429 static int test_prepare16(
3430   void * clientData,
3431   Tcl_Interp *interp,
3432   int objc,
3433   Tcl_Obj *CONST objv[]
3434 ){
3435 #ifndef SQLITE_OMIT_UTF16
3436   sqlite3 *db;
3437   const void *zSql;
3438   const void *zTail = 0;
3439   Tcl_Obj *pTail = 0;
3440   sqlite3_stmt *pStmt = 0;
3441   char zBuf[50];
3442   int rc;
3443   int bytes;                /* The integer specified as arg 3 */
3444   int objlen;               /* The byte-array length of arg 2 */
3445 
3446   if( objc!=5 && objc!=4 ){
3447     Tcl_AppendResult(interp, "wrong # args: should be \"",
3448        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
3449     return TCL_ERROR;
3450   }
3451   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3452   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
3453   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3454 
3455   rc = sqlite3_prepare16(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3456   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3457   if( rc ){
3458     return TCL_ERROR;
3459   }
3460 
3461   if( objc>=5 ){
3462     if( zTail ){
3463       objlen = objlen - ((u8 *)zTail-(u8 *)zSql);
3464     }else{
3465       objlen = 0;
3466     }
3467     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
3468     Tcl_IncrRefCount(pTail);
3469     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
3470     Tcl_DecrRefCount(pTail);
3471   }
3472 
3473   if( pStmt ){
3474     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3475   }
3476   Tcl_AppendResult(interp, zBuf, 0);
3477 #endif /* SQLITE_OMIT_UTF16 */
3478   return TCL_OK;
3479 }
3480 
3481 /*
3482 ** Usage: sqlite3_prepare16_v2 DB sql bytes ?tailvar?
3483 **
3484 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3485 ** database handle <DB>. The parameter <tailval> is the name of a global
3486 ** variable that is set to the unused portion of <sql> (if any). A
3487 ** STMT handle is returned.
3488 */
3489 static int test_prepare16_v2(
3490   void * clientData,
3491   Tcl_Interp *interp,
3492   int objc,
3493   Tcl_Obj *CONST objv[]
3494 ){
3495 #ifndef SQLITE_OMIT_UTF16
3496   sqlite3 *db;
3497   const void *zSql;
3498   const void *zTail = 0;
3499   Tcl_Obj *pTail = 0;
3500   sqlite3_stmt *pStmt = 0;
3501   char zBuf[50];
3502   int rc;
3503   int bytes;                /* The integer specified as arg 3 */
3504   int objlen;               /* The byte-array length of arg 2 */
3505 
3506   if( objc!=5 && objc!=4 ){
3507     Tcl_AppendResult(interp, "wrong # args: should be \"",
3508        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
3509     return TCL_ERROR;
3510   }
3511   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3512   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
3513   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3514 
3515   rc = sqlite3_prepare16_v2(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3516   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3517   if( rc ){
3518     return TCL_ERROR;
3519   }
3520 
3521   if( objc>=5 ){
3522     if( zTail ){
3523       objlen = objlen - ((u8 *)zTail-(u8 *)zSql);
3524     }else{
3525       objlen = 0;
3526     }
3527     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
3528     Tcl_IncrRefCount(pTail);
3529     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
3530     Tcl_DecrRefCount(pTail);
3531   }
3532 
3533   if( pStmt ){
3534     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3535   }
3536   Tcl_AppendResult(interp, zBuf, 0);
3537 #endif /* SQLITE_OMIT_UTF16 */
3538   return TCL_OK;
3539 }
3540 
3541 /*
3542 ** Usage: sqlite3_open filename ?options-list?
3543 */
3544 static int test_open(
3545   void * clientData,
3546   Tcl_Interp *interp,
3547   int objc,
3548   Tcl_Obj *CONST objv[]
3549 ){
3550   const char *zFilename;
3551   sqlite3 *db;
3552   int rc;
3553   char zBuf[100];
3554 
3555   if( objc!=3 && objc!=2 && objc!=1 ){
3556     Tcl_AppendResult(interp, "wrong # args: should be \"",
3557        Tcl_GetString(objv[0]), " filename options-list", 0);
3558     return TCL_ERROR;
3559   }
3560 
3561   zFilename = objc>1 ? Tcl_GetString(objv[1]) : 0;
3562   rc = sqlite3_open(zFilename, &db);
3563 
3564   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
3565   Tcl_AppendResult(interp, zBuf, 0);
3566   return TCL_OK;
3567 }
3568 
3569 /*
3570 ** Usage: sqlite3_open16 filename options
3571 */
3572 static int test_open16(
3573   void * clientData,
3574   Tcl_Interp *interp,
3575   int objc,
3576   Tcl_Obj *CONST objv[]
3577 ){
3578 #ifndef SQLITE_OMIT_UTF16
3579   const void *zFilename;
3580   sqlite3 *db;
3581   int rc;
3582   char zBuf[100];
3583 
3584   if( objc!=3 ){
3585     Tcl_AppendResult(interp, "wrong # args: should be \"",
3586        Tcl_GetString(objv[0]), " filename options-list", 0);
3587     return TCL_ERROR;
3588   }
3589 
3590   zFilename = Tcl_GetByteArrayFromObj(objv[1], 0);
3591   rc = sqlite3_open16(zFilename, &db);
3592 
3593   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
3594   Tcl_AppendResult(interp, zBuf, 0);
3595 #endif /* SQLITE_OMIT_UTF16 */
3596   return TCL_OK;
3597 }
3598 
3599 /*
3600 ** Usage: sqlite3_complete16 <UTF-16 string>
3601 **
3602 ** Return 1 if the supplied argument is a complete SQL statement, or zero
3603 ** otherwise.
3604 */
3605 static int test_complete16(
3606   void * clientData,
3607   Tcl_Interp *interp,
3608   int objc,
3609   Tcl_Obj *CONST objv[]
3610 ){
3611 #if !defined(SQLITE_OMIT_COMPLETE) && !defined(SQLITE_OMIT_UTF16)
3612   char *zBuf;
3613 
3614   if( objc!=2 ){
3615     Tcl_WrongNumArgs(interp, 1, objv, "<utf-16 sql>");
3616     return TCL_ERROR;
3617   }
3618 
3619   zBuf = (char*)Tcl_GetByteArrayFromObj(objv[1], 0);
3620   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_complete16(zBuf)));
3621 #endif /* SQLITE_OMIT_COMPLETE && SQLITE_OMIT_UTF16 */
3622   return TCL_OK;
3623 }
3624 
3625 /*
3626 ** Usage: sqlite3_step STMT
3627 **
3628 ** Advance the statement to the next row.
3629 */
3630 static int test_step(
3631   void * clientData,
3632   Tcl_Interp *interp,
3633   int objc,
3634   Tcl_Obj *CONST objv[]
3635 ){
3636   sqlite3_stmt *pStmt;
3637   int rc;
3638 
3639   if( objc!=2 ){
3640     Tcl_AppendResult(interp, "wrong # args: should be \"",
3641        Tcl_GetString(objv[0]), " STMT", 0);
3642     return TCL_ERROR;
3643   }
3644 
3645   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3646   rc = sqlite3_step(pStmt);
3647 
3648   /* if( rc!=SQLITE_DONE && rc!=SQLITE_ROW ) return TCL_ERROR; */
3649   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
3650   return TCL_OK;
3651 }
3652 
3653 static int test_sql(
3654   void * clientData,
3655   Tcl_Interp *interp,
3656   int objc,
3657   Tcl_Obj *CONST objv[]
3658 ){
3659   sqlite3_stmt *pStmt;
3660 
3661   if( objc!=2 ){
3662     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3663     return TCL_ERROR;
3664   }
3665 
3666   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3667   Tcl_SetResult(interp, (char *)sqlite3_sql(pStmt), TCL_VOLATILE);
3668   return TCL_OK;
3669 }
3670 
3671 /*
3672 ** Usage: sqlite3_column_count STMT
3673 **
3674 ** Return the number of columns returned by the sql statement STMT.
3675 */
3676 static int test_column_count(
3677   void * clientData,
3678   Tcl_Interp *interp,
3679   int objc,
3680   Tcl_Obj *CONST objv[]
3681 ){
3682   sqlite3_stmt *pStmt;
3683 
3684   if( objc!=2 ){
3685     Tcl_AppendResult(interp, "wrong # args: should be \"",
3686        Tcl_GetString(objv[0]), " STMT column", 0);
3687     return TCL_ERROR;
3688   }
3689 
3690   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3691 
3692   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_column_count(pStmt)));
3693   return TCL_OK;
3694 }
3695 
3696 /*
3697 ** Usage: sqlite3_column_type STMT column
3698 **
3699 ** Return the type of the data in column 'column' of the current row.
3700 */
3701 static int test_column_type(
3702   void * clientData,
3703   Tcl_Interp *interp,
3704   int objc,
3705   Tcl_Obj *CONST objv[]
3706 ){
3707   sqlite3_stmt *pStmt;
3708   int col;
3709   int tp;
3710 
3711   if( objc!=3 ){
3712     Tcl_AppendResult(interp, "wrong # args: should be \"",
3713        Tcl_GetString(objv[0]), " STMT column", 0);
3714     return TCL_ERROR;
3715   }
3716 
3717   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3718   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3719 
3720   tp = sqlite3_column_type(pStmt, col);
3721   switch( tp ){
3722     case SQLITE_INTEGER:
3723       Tcl_SetResult(interp, "INTEGER", TCL_STATIC);
3724       break;
3725     case SQLITE_NULL:
3726       Tcl_SetResult(interp, "NULL", TCL_STATIC);
3727       break;
3728     case SQLITE_FLOAT:
3729       Tcl_SetResult(interp, "FLOAT", TCL_STATIC);
3730       break;
3731     case SQLITE_TEXT:
3732       Tcl_SetResult(interp, "TEXT", TCL_STATIC);
3733       break;
3734     case SQLITE_BLOB:
3735       Tcl_SetResult(interp, "BLOB", TCL_STATIC);
3736       break;
3737     default:
3738       assert(0);
3739   }
3740 
3741   return TCL_OK;
3742 }
3743 
3744 /*
3745 ** Usage: sqlite3_column_int64 STMT column
3746 **
3747 ** Return the data in column 'column' of the current row cast as an
3748 ** wide (64-bit) integer.
3749 */
3750 static int test_column_int64(
3751   void * clientData,
3752   Tcl_Interp *interp,
3753   int objc,
3754   Tcl_Obj *CONST objv[]
3755 ){
3756   sqlite3_stmt *pStmt;
3757   int col;
3758   i64 iVal;
3759 
3760   if( objc!=3 ){
3761     Tcl_AppendResult(interp, "wrong # args: should be \"",
3762        Tcl_GetString(objv[0]), " STMT column", 0);
3763     return TCL_ERROR;
3764   }
3765 
3766   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3767   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3768 
3769   iVal = sqlite3_column_int64(pStmt, col);
3770   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(iVal));
3771   return TCL_OK;
3772 }
3773 
3774 /*
3775 ** Usage: sqlite3_column_blob STMT column
3776 */
3777 static int test_column_blob(
3778   void * clientData,
3779   Tcl_Interp *interp,
3780   int objc,
3781   Tcl_Obj *CONST objv[]
3782 ){
3783   sqlite3_stmt *pStmt;
3784   int col;
3785 
3786   int len;
3787   const void *pBlob;
3788 
3789   if( objc!=3 ){
3790     Tcl_AppendResult(interp, "wrong # args: should be \"",
3791        Tcl_GetString(objv[0]), " STMT column", 0);
3792     return TCL_ERROR;
3793   }
3794 
3795   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3796   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3797 
3798   len = sqlite3_column_bytes(pStmt, col);
3799   pBlob = sqlite3_column_blob(pStmt, col);
3800   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pBlob, len));
3801   return TCL_OK;
3802 }
3803 
3804 /*
3805 ** Usage: sqlite3_column_double STMT column
3806 **
3807 ** Return the data in column 'column' of the current row cast as a double.
3808 */
3809 static int test_column_double(
3810   void * clientData,
3811   Tcl_Interp *interp,
3812   int objc,
3813   Tcl_Obj *CONST objv[]
3814 ){
3815   sqlite3_stmt *pStmt;
3816   int col;
3817   double rVal;
3818 
3819   if( objc!=3 ){
3820     Tcl_AppendResult(interp, "wrong # args: should be \"",
3821        Tcl_GetString(objv[0]), " STMT column", 0);
3822     return TCL_ERROR;
3823   }
3824 
3825   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3826   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3827 
3828   rVal = sqlite3_column_double(pStmt, col);
3829   Tcl_SetObjResult(interp, Tcl_NewDoubleObj(rVal));
3830   return TCL_OK;
3831 }
3832 
3833 /*
3834 ** Usage: sqlite3_data_count STMT
3835 **
3836 ** Return the number of columns returned by the sql statement STMT.
3837 */
3838 static int test_data_count(
3839   void * clientData,
3840   Tcl_Interp *interp,
3841   int objc,
3842   Tcl_Obj *CONST objv[]
3843 ){
3844   sqlite3_stmt *pStmt;
3845 
3846   if( objc!=2 ){
3847     Tcl_AppendResult(interp, "wrong # args: should be \"",
3848        Tcl_GetString(objv[0]), " STMT column", 0);
3849     return TCL_ERROR;
3850   }
3851 
3852   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3853 
3854   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_data_count(pStmt)));
3855   return TCL_OK;
3856 }
3857 
3858 /*
3859 ** Usage: sqlite3_column_text STMT column
3860 **
3861 ** Usage: sqlite3_column_decltype STMT column
3862 **
3863 ** Usage: sqlite3_column_name STMT column
3864 */
3865 static int test_stmt_utf8(
3866   void * clientData,        /* Pointer to SQLite API function to be invoke */
3867   Tcl_Interp *interp,
3868   int objc,
3869   Tcl_Obj *CONST objv[]
3870 ){
3871   sqlite3_stmt *pStmt;
3872   int col;
3873   const char *(*xFunc)(sqlite3_stmt*, int);
3874   const char *zRet;
3875 
3876   xFunc = (const char *(*)(sqlite3_stmt*, int))clientData;
3877   if( objc!=3 ){
3878     Tcl_AppendResult(interp, "wrong # args: should be \"",
3879        Tcl_GetString(objv[0]), " STMT column", 0);
3880     return TCL_ERROR;
3881   }
3882 
3883   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3884   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3885   zRet = xFunc(pStmt, col);
3886   if( zRet ){
3887     Tcl_SetResult(interp, (char *)zRet, 0);
3888   }
3889   return TCL_OK;
3890 }
3891 
3892 static int test_global_recover(
3893   void * clientData,
3894   Tcl_Interp *interp,
3895   int objc,
3896   Tcl_Obj *CONST objv[]
3897 ){
3898 #ifndef SQLITE_OMIT_GLOBALRECOVER
3899 #ifndef SQLITE_OMIT_DEPRECATED
3900   int rc;
3901   if( objc!=1 ){
3902     Tcl_WrongNumArgs(interp, 1, objv, "");
3903     return TCL_ERROR;
3904   }
3905   rc = sqlite3_global_recover();
3906   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
3907 #endif
3908 #endif
3909   return TCL_OK;
3910 }
3911 
3912 /*
3913 ** Usage: sqlite3_column_text STMT column
3914 **
3915 ** Usage: sqlite3_column_decltype STMT column
3916 **
3917 ** Usage: sqlite3_column_name STMT column
3918 */
3919 static int test_stmt_utf16(
3920   void * clientData,     /* Pointer to SQLite API function to be invoked */
3921   Tcl_Interp *interp,
3922   int objc,
3923   Tcl_Obj *CONST objv[]
3924 ){
3925 #ifndef SQLITE_OMIT_UTF16
3926   sqlite3_stmt *pStmt;
3927   int col;
3928   Tcl_Obj *pRet;
3929   const void *zName16;
3930   const void *(*xFunc)(sqlite3_stmt*, int);
3931 
3932   xFunc = (const void *(*)(sqlite3_stmt*, int))clientData;
3933   if( objc!=3 ){
3934     Tcl_AppendResult(interp, "wrong # args: should be \"",
3935        Tcl_GetString(objv[0]), " STMT column", 0);
3936     return TCL_ERROR;
3937   }
3938 
3939   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3940   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3941 
3942   zName16 = xFunc(pStmt, col);
3943   if( zName16 ){
3944     int n;
3945     const char *z = zName16;
3946     for(n=0; z[n] || z[n+1]; n+=2){}
3947     pRet = Tcl_NewByteArrayObj(zName16, n+2);
3948     Tcl_SetObjResult(interp, pRet);
3949   }
3950 #endif /* SQLITE_OMIT_UTF16 */
3951 
3952   return TCL_OK;
3953 }
3954 
3955 /*
3956 ** Usage: sqlite3_column_int STMT column
3957 **
3958 ** Usage: sqlite3_column_bytes STMT column
3959 **
3960 ** Usage: sqlite3_column_bytes16 STMT column
3961 **
3962 */
3963 static int test_stmt_int(
3964   void * clientData,    /* Pointer to SQLite API function to be invoked */
3965   Tcl_Interp *interp,
3966   int objc,
3967   Tcl_Obj *CONST objv[]
3968 ){
3969   sqlite3_stmt *pStmt;
3970   int col;
3971   int (*xFunc)(sqlite3_stmt*, int);
3972 
3973   xFunc = (int (*)(sqlite3_stmt*, int))clientData;
3974   if( objc!=3 ){
3975     Tcl_AppendResult(interp, "wrong # args: should be \"",
3976        Tcl_GetString(objv[0]), " STMT column", 0);
3977     return TCL_ERROR;
3978   }
3979 
3980   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3981   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
3982 
3983   Tcl_SetObjResult(interp, Tcl_NewIntObj(xFunc(pStmt, col)));
3984   return TCL_OK;
3985 }
3986 
3987 /*
3988 ** Usage:  sqlite_set_magic  DB  MAGIC-NUMBER
3989 **
3990 ** Set the db->magic value.  This is used to test error recovery logic.
3991 */
3992 static int sqlite_set_magic(
3993   void * clientData,
3994   Tcl_Interp *interp,
3995   int argc,
3996   char **argv
3997 ){
3998   sqlite3 *db;
3999   if( argc!=3 ){
4000     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4001          " DB MAGIC", 0);
4002     return TCL_ERROR;
4003   }
4004   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4005   if( strcmp(argv[2], "SQLITE_MAGIC_OPEN")==0 ){
4006     db->magic = SQLITE_MAGIC_OPEN;
4007   }else if( strcmp(argv[2], "SQLITE_MAGIC_CLOSED")==0 ){
4008     db->magic = SQLITE_MAGIC_CLOSED;
4009   }else if( strcmp(argv[2], "SQLITE_MAGIC_BUSY")==0 ){
4010     db->magic = SQLITE_MAGIC_BUSY;
4011   }else if( strcmp(argv[2], "SQLITE_MAGIC_ERROR")==0 ){
4012     db->magic = SQLITE_MAGIC_ERROR;
4013   }else if( Tcl_GetInt(interp, argv[2], (int*)&db->magic) ){
4014     return TCL_ERROR;
4015   }
4016   return TCL_OK;
4017 }
4018 
4019 /*
4020 ** Usage:  sqlite3_interrupt  DB
4021 **
4022 ** Trigger an interrupt on DB
4023 */
4024 static int test_interrupt(
4025   void * clientData,
4026   Tcl_Interp *interp,
4027   int argc,
4028   char **argv
4029 ){
4030   sqlite3 *db;
4031   if( argc!=2 ){
4032     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB", 0);
4033     return TCL_ERROR;
4034   }
4035   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4036   sqlite3_interrupt(db);
4037   return TCL_OK;
4038 }
4039 
4040 static u8 *sqlite3_stack_baseline = 0;
4041 
4042 /*
4043 ** Fill the stack with a known bitpattern.
4044 */
4045 static void prepStack(void){
4046   int i;
4047   u32 bigBuf[65536];
4048   for(i=0; i<sizeof(bigBuf); i++) bigBuf[i] = 0xdeadbeef;
4049   sqlite3_stack_baseline = (u8*)&bigBuf[65536];
4050 }
4051 
4052 /*
4053 ** Get the current stack depth.  Used for debugging only.
4054 */
4055 u64 sqlite3StackDepth(void){
4056   u8 x;
4057   return (u64)(sqlite3_stack_baseline - &x);
4058 }
4059 
4060 /*
4061 ** Usage:  sqlite3_stack_used DB SQL
4062 **
4063 ** Try to measure the amount of stack space used by a call to sqlite3_exec
4064 */
4065 static int test_stack_used(
4066   void * clientData,
4067   Tcl_Interp *interp,
4068   int argc,
4069   char **argv
4070 ){
4071   sqlite3 *db;
4072   int i;
4073   if( argc!=3 ){
4074     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4075         " DB SQL", 0);
4076     return TCL_ERROR;
4077   }
4078   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4079   prepStack();
4080   (void)sqlite3_exec(db, argv[2], 0, 0, 0);
4081   for(i=65535; i>=0 && ((u32*)sqlite3_stack_baseline)[-i]==0xdeadbeef; i--){}
4082   Tcl_SetObjResult(interp, Tcl_NewIntObj(i*4));
4083   return TCL_OK;
4084 }
4085 
4086 /*
4087 ** Usage: sqlite_delete_function DB function-name
4088 **
4089 ** Delete the user function 'function-name' from database handle DB. It
4090 ** is assumed that the user function was created as UTF8, any number of
4091 ** arguments (the way the TCL interface does it).
4092 */
4093 static int delete_function(
4094   void * clientData,
4095   Tcl_Interp *interp,
4096   int argc,
4097   char **argv
4098 ){
4099   int rc;
4100   sqlite3 *db;
4101   if( argc!=3 ){
4102     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4103         " DB function-name", 0);
4104     return TCL_ERROR;
4105   }
4106   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4107   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0, 0, 0, 0);
4108   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4109   return TCL_OK;
4110 }
4111 
4112 /*
4113 ** Usage: sqlite_delete_collation DB collation-name
4114 **
4115 ** Delete the collation sequence 'collation-name' from database handle
4116 ** DB. It is assumed that the collation sequence was created as UTF8 (the
4117 ** way the TCL interface does it).
4118 */
4119 static int delete_collation(
4120   void * clientData,
4121   Tcl_Interp *interp,
4122   int argc,
4123   char **argv
4124 ){
4125   int rc;
4126   sqlite3 *db;
4127   if( argc!=3 ){
4128     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4129         " DB function-name", 0);
4130     return TCL_ERROR;
4131   }
4132   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4133   rc = sqlite3_create_collation(db, argv[2], SQLITE_UTF8, 0, 0);
4134   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4135   return TCL_OK;
4136 }
4137 
4138 /*
4139 ** Usage: sqlite3_get_autocommit DB
4140 **
4141 ** Return true if the database DB is currently in auto-commit mode.
4142 ** Return false if not.
4143 */
4144 static int get_autocommit(
4145   void * clientData,
4146   Tcl_Interp *interp,
4147   int argc,
4148   char **argv
4149 ){
4150   char zBuf[30];
4151   sqlite3 *db;
4152   if( argc!=2 ){
4153     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4154         " DB", 0);
4155     return TCL_ERROR;
4156   }
4157   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4158   sprintf(zBuf, "%d", sqlite3_get_autocommit(db));
4159   Tcl_AppendResult(interp, zBuf, 0);
4160   return TCL_OK;
4161 }
4162 
4163 /*
4164 ** Usage: sqlite3_busy_timeout DB MS
4165 **
4166 ** Set the busy timeout.  This is more easily done using the timeout
4167 ** method of the TCL interface.  But we need a way to test the case
4168 ** where it returns SQLITE_MISUSE.
4169 */
4170 static int test_busy_timeout(
4171   void * clientData,
4172   Tcl_Interp *interp,
4173   int argc,
4174   char **argv
4175 ){
4176   int rc, ms;
4177   sqlite3 *db;
4178   if( argc!=3 ){
4179     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4180         " DB", 0);
4181     return TCL_ERROR;
4182   }
4183   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4184   if( Tcl_GetInt(interp, argv[2], &ms) ) return TCL_ERROR;
4185   rc = sqlite3_busy_timeout(db, ms);
4186   Tcl_AppendResult(interp, sqlite3TestErrorName(rc), 0);
4187   return TCL_OK;
4188 }
4189 
4190 /*
4191 ** Usage:  tcl_variable_type VARIABLENAME
4192 **
4193 ** Return the name of the internal representation for the
4194 ** value of the given variable.
4195 */
4196 static int tcl_variable_type(
4197   void * clientData,
4198   Tcl_Interp *interp,
4199   int objc,
4200   Tcl_Obj *CONST objv[]
4201 ){
4202   Tcl_Obj *pVar;
4203   if( objc!=2 ){
4204     Tcl_WrongNumArgs(interp, 1, objv, "VARIABLE");
4205     return TCL_ERROR;
4206   }
4207   pVar = Tcl_GetVar2Ex(interp, Tcl_GetString(objv[1]), 0, TCL_LEAVE_ERR_MSG);
4208   if( pVar==0 ) return TCL_ERROR;
4209   if( pVar->typePtr ){
4210     Tcl_SetObjResult(interp, Tcl_NewStringObj(pVar->typePtr->name, -1));
4211   }
4212   return TCL_OK;
4213 }
4214 
4215 /*
4216 ** Usage:  sqlite3_release_memory ?N?
4217 **
4218 ** Attempt to release memory currently held but not actually required.
4219 ** The integer N is the number of bytes we are trying to release.  The
4220 ** return value is the amount of memory actually released.
4221 */
4222 static int test_release_memory(
4223   void * clientData,
4224   Tcl_Interp *interp,
4225   int objc,
4226   Tcl_Obj *CONST objv[]
4227 ){
4228 #if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) && !defined(SQLITE_OMIT_DISKIO)
4229   int N;
4230   int amt;
4231   if( objc!=1 && objc!=2 ){
4232     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
4233     return TCL_ERROR;
4234   }
4235   if( objc==2 ){
4236     if( Tcl_GetIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
4237   }else{
4238     N = -1;
4239   }
4240   amt = sqlite3_release_memory(N);
4241   Tcl_SetObjResult(interp, Tcl_NewIntObj(amt));
4242 #endif
4243   return TCL_OK;
4244 }
4245 
4246 /*
4247 ** Usage:  sqlite3_soft_heap_limit ?N?
4248 **
4249 ** Query or set the soft heap limit for the current thread.  The
4250 ** limit is only changed if the N is present.  The previous limit
4251 ** is returned.
4252 */
4253 static int test_soft_heap_limit(
4254   void * clientData,
4255   Tcl_Interp *interp,
4256   int objc,
4257   Tcl_Obj *CONST objv[]
4258 ){
4259   static int softHeapLimit = 0;
4260   int amt;
4261   if( objc!=1 && objc!=2 ){
4262     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
4263     return TCL_ERROR;
4264   }
4265   amt = softHeapLimit;
4266   if( objc==2 ){
4267     int N;
4268     if( Tcl_GetIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
4269     sqlite3_soft_heap_limit(N);
4270     softHeapLimit = N;
4271   }
4272   Tcl_SetObjResult(interp, Tcl_NewIntObj(amt));
4273   return TCL_OK;
4274 }
4275 
4276 /*
4277 ** Usage:   sqlite3_thread_cleanup
4278 **
4279 ** Call the sqlite3_thread_cleanup API.
4280 */
4281 static int test_thread_cleanup(
4282   void * clientData,
4283   Tcl_Interp *interp,
4284   int objc,
4285   Tcl_Obj *CONST objv[]
4286 ){
4287 #ifndef SQLITE_OMIT_DEPRECATED
4288   sqlite3_thread_cleanup();
4289 #endif
4290   return TCL_OK;
4291 }
4292 
4293 /*
4294 ** Usage:   sqlite3_pager_refcounts  DB
4295 **
4296 ** Return a list of numbers which are the PagerRefcount for all
4297 ** pagers on each database connection.
4298 */
4299 static int test_pager_refcounts(
4300   void * clientData,
4301   Tcl_Interp *interp,
4302   int objc,
4303   Tcl_Obj *CONST objv[]
4304 ){
4305   sqlite3 *db;
4306   int i;
4307   int v, *a;
4308   Tcl_Obj *pResult;
4309 
4310   if( objc!=2 ){
4311     Tcl_AppendResult(interp, "wrong # args: should be \"",
4312         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
4313     return TCL_ERROR;
4314   }
4315   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4316   pResult = Tcl_NewObj();
4317   for(i=0; i<db->nDb; i++){
4318     if( db->aDb[i].pBt==0 ){
4319       v = -1;
4320     }else{
4321       sqlite3_mutex_enter(db->mutex);
4322       a = sqlite3PagerStats(sqlite3BtreePager(db->aDb[i].pBt));
4323       v = a[0];
4324       sqlite3_mutex_leave(db->mutex);
4325     }
4326     Tcl_ListObjAppendElement(0, pResult, Tcl_NewIntObj(v));
4327   }
4328   Tcl_SetObjResult(interp, pResult);
4329   return TCL_OK;
4330 }
4331 
4332 
4333 /*
4334 ** tclcmd:   working_64bit_int
4335 **
4336 ** Some TCL builds (ex: cygwin) do not support 64-bit integers.  This
4337 ** leads to a number of test failures.  The present command checks the
4338 ** TCL build to see whether or not it supports 64-bit integers.  It
4339 ** returns TRUE if it does and FALSE if not.
4340 **
4341 ** This command is used to warn users that their TCL build is defective
4342 ** and that the errors they are seeing in the test scripts might be
4343 ** a result of their defective TCL rather than problems in SQLite.
4344 */
4345 static int working_64bit_int(
4346   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4347   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4348   int objc,              /* Number of arguments */
4349   Tcl_Obj *CONST objv[]  /* Command arguments */
4350 ){
4351   Tcl_Obj *pTestObj;
4352   int working = 0;
4353 
4354   pTestObj = Tcl_NewWideIntObj(1000000*(i64)1234567890);
4355   working = strcmp(Tcl_GetString(pTestObj), "1234567890000000")==0;
4356   Tcl_DecrRefCount(pTestObj);
4357   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(working));
4358   return TCL_OK;
4359 }
4360 
4361 
4362 /*
4363 ** tclcmd:   vfs_unlink_test
4364 **
4365 ** This TCL command unregisters the primary VFS and then registers
4366 ** it back again.  This is used to test the ability to register a
4367 ** VFS when none are previously registered, and the ability to
4368 ** unregister the only available VFS.  Ticket #2738
4369 */
4370 static int vfs_unlink_test(
4371   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4372   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4373   int objc,              /* Number of arguments */
4374   Tcl_Obj *CONST objv[]  /* Command arguments */
4375 ){
4376   int i;
4377   sqlite3_vfs *pMain;
4378   sqlite3_vfs *apVfs[20];
4379   sqlite3_vfs one, two;
4380 
4381   sqlite3_vfs_unregister(0);   /* Unregister of NULL is harmless */
4382   one.zName = "__one";
4383   two.zName = "__two";
4384 
4385   /* Calling sqlite3_vfs_register with 2nd argument of 0 does not
4386   ** change the default VFS
4387   */
4388   pMain = sqlite3_vfs_find(0);
4389   sqlite3_vfs_register(&one, 0);
4390   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
4391   sqlite3_vfs_register(&two, 0);
4392   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
4393 
4394   /* We can find a VFS by its name */
4395   assert( sqlite3_vfs_find("__one")==&one );
4396   assert( sqlite3_vfs_find("__two")==&two );
4397 
4398   /* Calling sqlite_vfs_register with non-zero second parameter changes the
4399   ** default VFS, even if the 1st parameter is an existig VFS that is
4400   ** previously registered as the non-default.
4401   */
4402   sqlite3_vfs_register(&one, 1);
4403   assert( sqlite3_vfs_find("__one")==&one );
4404   assert( sqlite3_vfs_find("__two")==&two );
4405   assert( sqlite3_vfs_find(0)==&one );
4406   sqlite3_vfs_register(&two, 1);
4407   assert( sqlite3_vfs_find("__one")==&one );
4408   assert( sqlite3_vfs_find("__two")==&two );
4409   assert( sqlite3_vfs_find(0)==&two );
4410   if( pMain ){
4411     sqlite3_vfs_register(pMain, 1);
4412     assert( sqlite3_vfs_find("__one")==&one );
4413     assert( sqlite3_vfs_find("__two")==&two );
4414     assert( sqlite3_vfs_find(0)==pMain );
4415   }
4416 
4417   /* Unlink the default VFS.  Repeat until there are no more VFSes
4418   ** registered.
4419   */
4420   for(i=0; i<sizeof(apVfs)/sizeof(apVfs[0]); i++){
4421     apVfs[i] = sqlite3_vfs_find(0);
4422     if( apVfs[i] ){
4423       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
4424       sqlite3_vfs_unregister(apVfs[i]);
4425       assert( 0==sqlite3_vfs_find(apVfs[i]->zName) );
4426     }
4427   }
4428   assert( 0==sqlite3_vfs_find(0) );
4429 
4430   /* Register the main VFS as non-default (will be made default, since
4431   ** it'll be the only one in existence).
4432   */
4433   sqlite3_vfs_register(pMain, 0);
4434   assert( sqlite3_vfs_find(0)==pMain );
4435 
4436   /* Un-register the main VFS again to restore an empty VFS list */
4437   sqlite3_vfs_unregister(pMain);
4438   assert( 0==sqlite3_vfs_find(0) );
4439 
4440   /* Relink all VFSes in reverse order. */
4441   for(i=sizeof(apVfs)/sizeof(apVfs[0])-1; i>=0; i--){
4442     if( apVfs[i] ){
4443       sqlite3_vfs_register(apVfs[i], 1);
4444       assert( apVfs[i]==sqlite3_vfs_find(0) );
4445       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
4446     }
4447   }
4448 
4449   /* Unregister out sample VFSes. */
4450   sqlite3_vfs_unregister(&one);
4451   sqlite3_vfs_unregister(&two);
4452 
4453   /* Unregistering a VFS that is not currently registered is harmless */
4454   sqlite3_vfs_unregister(&one);
4455   sqlite3_vfs_unregister(&two);
4456   assert( sqlite3_vfs_find("__one")==0 );
4457   assert( sqlite3_vfs_find("__two")==0 );
4458 
4459   /* We should be left with the original default VFS back as the
4460   ** original */
4461   assert( sqlite3_vfs_find(0)==pMain );
4462 
4463   return TCL_OK;
4464 }
4465 
4466 /*
4467 ** tclcmd:   vfs_initfail_test
4468 **
4469 ** This TCL command attempts to vfs_find and vfs_register when the
4470 ** sqlite3_initialize() interface is failing.  All calls should fail.
4471 */
4472 static int vfs_initfail_test(
4473   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4474   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4475   int objc,              /* Number of arguments */
4476   Tcl_Obj *CONST objv[]  /* Command arguments */
4477 ){
4478   sqlite3_vfs one;
4479   one.zName = "__one";
4480 
4481   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
4482   sqlite3_vfs_register(&one, 0);
4483   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
4484   sqlite3_vfs_register(&one, 1);
4485   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
4486   return TCL_OK;
4487 }
4488 
4489 /*
4490 ** Saved VFSes
4491 */
4492 static sqlite3_vfs *apVfs[20];
4493 static int nVfs = 0;
4494 
4495 /*
4496 ** tclcmd:   vfs_unregister_all
4497 **
4498 ** Unregister all VFSes.
4499 */
4500 static int vfs_unregister_all(
4501   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4502   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4503   int objc,              /* Number of arguments */
4504   Tcl_Obj *CONST objv[]  /* Command arguments */
4505 ){
4506   int i;
4507   for(i=0; i<ArraySize(apVfs); i++){
4508     apVfs[i] = sqlite3_vfs_find(0);
4509     if( apVfs[i]==0 ) break;
4510     sqlite3_vfs_unregister(apVfs[i]);
4511   }
4512   nVfs = i;
4513   return TCL_OK;
4514 }
4515 /*
4516 ** tclcmd:   vfs_reregister_all
4517 **
4518 ** Restore all VFSes that were removed using vfs_unregister_all
4519 */
4520 static int vfs_reregister_all(
4521   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4522   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4523   int objc,              /* Number of arguments */
4524   Tcl_Obj *CONST objv[]  /* Command arguments */
4525 ){
4526   int i;
4527   for(i=0; i<nVfs; i++){
4528     sqlite3_vfs_register(apVfs[i], i==0);
4529   }
4530   return TCL_OK;
4531 }
4532 
4533 
4534 /*
4535 ** tclcmd:   file_control_test DB
4536 **
4537 ** This TCL command runs the sqlite3_file_control interface and
4538 ** verifies correct operation of the same.
4539 */
4540 static int file_control_test(
4541   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4542   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4543   int objc,              /* Number of arguments */
4544   Tcl_Obj *CONST objv[]  /* Command arguments */
4545 ){
4546   int iArg = 0;
4547   sqlite3 *db;
4548   int rc;
4549 
4550   if( objc!=2 ){
4551     Tcl_AppendResult(interp, "wrong # args: should be \"",
4552         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
4553     return TCL_ERROR;
4554   }
4555   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4556   rc = sqlite3_file_control(db, 0, 0, &iArg);
4557   assert( rc==SQLITE_ERROR );
4558   rc = sqlite3_file_control(db, "notadatabase", SQLITE_FCNTL_LOCKSTATE, &iArg);
4559   assert( rc==SQLITE_ERROR );
4560   rc = sqlite3_file_control(db, "main", -1, &iArg);
4561   assert( rc==SQLITE_ERROR );
4562   rc = sqlite3_file_control(db, "temp", -1, &iArg);
4563   assert( rc==SQLITE_ERROR );
4564 
4565   return TCL_OK;
4566 }
4567 
4568 
4569 /*
4570 ** tclcmd:   file_control_lasterrno_test DB
4571 **
4572 ** This TCL command runs the sqlite3_file_control interface and
4573 ** verifies correct operation of the SQLITE_LAST_ERRNO verb.
4574 */
4575 static int file_control_lasterrno_test(
4576   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4577   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4578   int objc,              /* Number of arguments */
4579   Tcl_Obj *CONST objv[]  /* Command arguments */
4580 ){
4581   int iArg = 0;
4582   sqlite3 *db;
4583   int rc;
4584 
4585   if( objc!=2 ){
4586     Tcl_AppendResult(interp, "wrong # args: should be \"",
4587         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
4588     return TCL_ERROR;
4589   }
4590   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
4591     return TCL_ERROR;
4592   }
4593   rc = sqlite3_file_control(db, NULL, SQLITE_LAST_ERRNO, &iArg);
4594   if( rc ){
4595     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
4596     return TCL_ERROR;
4597   }
4598   if( iArg!=0 ) {
4599     Tcl_AppendResult(interp, "Unexpected non-zero errno: ",
4600                      Tcl_GetStringFromObj(Tcl_NewIntObj(iArg), 0), " ", 0);
4601     return TCL_ERROR;
4602   }
4603   return TCL_OK;
4604 }
4605 
4606 /*
4607 ** tclcmd:   file_control_lockproxy_test DB
4608 **
4609 ** This TCL command runs the sqlite3_file_control interface and
4610 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
4611 ** SQLITE_SET_LOCKPROXYFILE verbs.
4612 */
4613 static int file_control_lockproxy_test(
4614   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4615   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4616   int objc,              /* Number of arguments */
4617   Tcl_Obj *CONST objv[]  /* Command arguments */
4618 ){
4619   sqlite3 *db;
4620 
4621   if( objc!=2 ){
4622     Tcl_AppendResult(interp, "wrong # args: should be \"",
4623                      Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
4624     return TCL_ERROR;
4625   }
4626   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
4627    return TCL_ERROR;
4628   }
4629 
4630 #if !defined(SQLITE_ENABLE_LOCKING_STYLE)
4631 #  if defined(__APPLE__)
4632 #    define SQLITE_ENABLE_LOCKING_STYLE 1
4633 #  else
4634 #    define SQLITE_ENABLE_LOCKING_STYLE 0
4635 #  endif
4636 #endif
4637 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
4638   {
4639     char *proxyPath = "test.proxy";
4640     char *testPath;
4641     int rc;
4642     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
4643     if( rc ){
4644       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
4645       return TCL_ERROR;
4646     }
4647     rc = sqlite3_file_control(db, NULL, SQLITE_GET_LOCKPROXYFILE, &testPath);
4648     if( strncmp(proxyPath,testPath,11) ){
4649       Tcl_AppendResult(interp, "Lock proxy file did not match the "
4650                                "previously assigned value", 0);
4651       return TCL_ERROR;
4652     }
4653     if( rc ){
4654       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
4655       return TCL_ERROR;
4656     }
4657     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
4658     if( rc ){
4659       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
4660       return TCL_ERROR;
4661     }
4662   }
4663 #endif
4664   return TCL_OK;
4665 }
4666 
4667 
4668 /*
4669 ** tclcmd:   sqlite3_vfs_list
4670 **
4671 **   Return a tcl list containing the names of all registered vfs's.
4672 */
4673 static int vfs_list(
4674   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4675   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4676   int objc,              /* Number of arguments */
4677   Tcl_Obj *CONST objv[]  /* Command arguments */
4678 ){
4679   sqlite3_vfs *pVfs;
4680   Tcl_Obj *pRet = Tcl_NewObj();
4681   if( objc!=1 ){
4682     Tcl_WrongNumArgs(interp, 1, objv, "");
4683     return TCL_ERROR;
4684   }
4685   for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
4686     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(pVfs->zName, -1));
4687   }
4688   Tcl_SetObjResult(interp, pRet);
4689   return TCL_OK;
4690 }
4691 
4692 /*
4693 ** tclcmd:   sqlite3_limit DB ID VALUE
4694 **
4695 ** This TCL command runs the sqlite3_limit interface and
4696 ** verifies correct operation of the same.
4697 */
4698 static int test_limit(
4699   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4700   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4701   int objc,              /* Number of arguments */
4702   Tcl_Obj *CONST objv[]  /* Command arguments */
4703 ){
4704   sqlite3 *db;
4705   int rc;
4706   static const struct {
4707      char *zName;
4708      int id;
4709   } aId[] = {
4710     { "SQLITE_LIMIT_LENGTH",              SQLITE_LIMIT_LENGTH               },
4711     { "SQLITE_LIMIT_SQL_LENGTH",          SQLITE_LIMIT_SQL_LENGTH           },
4712     { "SQLITE_LIMIT_COLUMN",              SQLITE_LIMIT_COLUMN               },
4713     { "SQLITE_LIMIT_EXPR_DEPTH",          SQLITE_LIMIT_EXPR_DEPTH           },
4714     { "SQLITE_LIMIT_COMPOUND_SELECT",     SQLITE_LIMIT_COMPOUND_SELECT      },
4715     { "SQLITE_LIMIT_VDBE_OP",             SQLITE_LIMIT_VDBE_OP              },
4716     { "SQLITE_LIMIT_FUNCTION_ARG",        SQLITE_LIMIT_FUNCTION_ARG         },
4717     { "SQLITE_LIMIT_ATTACHED",            SQLITE_LIMIT_ATTACHED             },
4718     { "SQLITE_LIMIT_LIKE_PATTERN_LENGTH", SQLITE_LIMIT_LIKE_PATTERN_LENGTH  },
4719     { "SQLITE_LIMIT_VARIABLE_NUMBER",     SQLITE_LIMIT_VARIABLE_NUMBER      },
4720 
4721     /* Out of range test cases */
4722     { "SQLITE_LIMIT_TOOSMALL",            -1,                               },
4723     { "SQLITE_LIMIT_TOOBIG",              SQLITE_LIMIT_VARIABLE_NUMBER+1    },
4724   };
4725   int i, id;
4726   int val;
4727   const char *zId;
4728 
4729   if( objc!=4 ){
4730     Tcl_AppendResult(interp, "wrong # args: should be \"",
4731         Tcl_GetStringFromObj(objv[0], 0), " DB ID VALUE", 0);
4732     return TCL_ERROR;
4733   }
4734   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4735   zId = Tcl_GetString(objv[2]);
4736   for(i=0; i<sizeof(aId)/sizeof(aId[0]); i++){
4737     if( strcmp(zId, aId[i].zName)==0 ){
4738       id = aId[i].id;
4739       break;
4740     }
4741   }
4742   if( i>=sizeof(aId)/sizeof(aId[0]) ){
4743     Tcl_AppendResult(interp, "unknown limit type: ", zId, (char*)0);
4744     return TCL_ERROR;
4745   }
4746   if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
4747   rc = sqlite3_limit(db, id, val);
4748   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
4749   return TCL_OK;
4750 }
4751 
4752 /*
4753 ** tclcmd:  save_prng_state
4754 **
4755 ** Save the state of the pseudo-random number generator.
4756 ** At the same time, verify that sqlite3_test_control works even when
4757 ** called with an out-of-range opcode.
4758 */
4759 static int save_prng_state(
4760   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4761   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4762   int objc,              /* Number of arguments */
4763   Tcl_Obj *CONST objv[]  /* Command arguments */
4764 ){
4765   int rc = sqlite3_test_control(9999);
4766   assert( rc==0 );
4767   rc = sqlite3_test_control(-1);
4768   assert( rc==0 );
4769   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SAVE);
4770   return TCL_OK;
4771 }
4772 /*
4773 ** tclcmd:  restore_prng_state
4774 */
4775 static int restore_prng_state(
4776   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4777   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4778   int objc,              /* Number of arguments */
4779   Tcl_Obj *CONST objv[]  /* Command arguments */
4780 ){
4781   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESTORE);
4782   return TCL_OK;
4783 }
4784 /*
4785 ** tclcmd:  reset_prng_state
4786 */
4787 static int reset_prng_state(
4788   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4789   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4790   int objc,              /* Number of arguments */
4791   Tcl_Obj *CONST objv[]  /* Command arguments */
4792 ){
4793   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESET);
4794   return TCL_OK;
4795 }
4796 
4797 /*
4798 ** tclcmd:  pcache_stats
4799 */
4800 static int test_pcache_stats(
4801   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4802   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4803   int objc,              /* Number of arguments */
4804   Tcl_Obj *CONST objv[]  /* Command arguments */
4805 ){
4806   int nMin;
4807   int nMax;
4808   int nCurrent;
4809   int nRecyclable;
4810   Tcl_Obj *pRet;
4811 
4812   sqlite3PcacheStats(&nCurrent, &nMax, &nMin, &nRecyclable);
4813 
4814   pRet = Tcl_NewObj();
4815   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("current", -1));
4816   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCurrent));
4817   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("max", -1));
4818   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMax));
4819   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("min", -1));
4820   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMin));
4821   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("recyclable", -1));
4822   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nRecyclable));
4823 
4824   Tcl_SetObjResult(interp, pRet);
4825 
4826   return TCL_OK;
4827 }
4828 
4829 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
4830 static void test_unlock_notify_cb(void **aArg, int nArg){
4831   int ii;
4832   for(ii=0; ii<nArg; ii++){
4833     Tcl_EvalEx((Tcl_Interp *)aArg[ii], "unlock_notify", -1, TCL_EVAL_GLOBAL);
4834   }
4835 }
4836 #endif /* SQLITE_ENABLE_UNLOCK_NOTIFY */
4837 
4838 /*
4839 ** tclcmd:  sqlite3_unlock_notify db
4840 */
4841 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
4842 static int test_unlock_notify(
4843   ClientData clientData, /* Unused */
4844   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4845   int objc,              /* Number of arguments */
4846   Tcl_Obj *CONST objv[]  /* Command arguments */
4847 ){
4848   sqlite3 *db;
4849   int rc;
4850 
4851   if( objc!=2 ){
4852     Tcl_WrongNumArgs(interp, 1, objv, "DB");
4853     return TCL_ERROR;
4854   }
4855 
4856   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
4857     return TCL_ERROR;
4858   }
4859   rc = sqlite3_unlock_notify(db, test_unlock_notify_cb, (void *)interp);
4860   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4861   return TCL_OK;
4862 }
4863 #endif
4864 
4865 
4866 /*
4867 ** Register commands with the TCL interpreter.
4868 */
4869 int Sqlitetest1_Init(Tcl_Interp *interp){
4870   extern int sqlite3_search_count;
4871   extern int sqlite3_interrupt_count;
4872   extern int sqlite3_open_file_count;
4873   extern int sqlite3_sort_count;
4874   extern int sqlite3_current_time;
4875 #if SQLITE_OS_UNIX && defined(__APPLE__)
4876   extern int sqlite3_hostid_num;
4877 #endif
4878   extern int sqlite3_max_blobsize;
4879   extern int sqlite3BtreeSharedCacheReport(void*,
4880                                           Tcl_Interp*,int,Tcl_Obj*CONST*);
4881   static struct {
4882      char *zName;
4883      Tcl_CmdProc *xProc;
4884   } aCmd[] = {
4885      { "db_enter",                      (Tcl_CmdProc*)db_enter               },
4886      { "db_leave",                      (Tcl_CmdProc*)db_leave               },
4887      { "sqlite3_mprintf_int",           (Tcl_CmdProc*)sqlite3_mprintf_int    },
4888      { "sqlite3_mprintf_int64",         (Tcl_CmdProc*)sqlite3_mprintf_int64  },
4889      { "sqlite3_mprintf_long",          (Tcl_CmdProc*)sqlite3_mprintf_long   },
4890      { "sqlite3_mprintf_str",           (Tcl_CmdProc*)sqlite3_mprintf_str    },
4891      { "sqlite3_snprintf_str",          (Tcl_CmdProc*)sqlite3_snprintf_str   },
4892      { "sqlite3_mprintf_stronly",       (Tcl_CmdProc*)sqlite3_mprintf_stronly},
4893      { "sqlite3_mprintf_double",        (Tcl_CmdProc*)sqlite3_mprintf_double },
4894      { "sqlite3_mprintf_scaled",        (Tcl_CmdProc*)sqlite3_mprintf_scaled },
4895      { "sqlite3_mprintf_hexdouble",   (Tcl_CmdProc*)sqlite3_mprintf_hexdouble},
4896      { "sqlite3_mprintf_z_test",        (Tcl_CmdProc*)test_mprintf_z        },
4897      { "sqlite3_mprintf_n_test",        (Tcl_CmdProc*)test_mprintf_n        },
4898      { "sqlite3_snprintf_int",          (Tcl_CmdProc*)test_snprintf_int     },
4899      { "sqlite3_last_insert_rowid",     (Tcl_CmdProc*)test_last_rowid       },
4900      { "sqlite3_exec_printf",           (Tcl_CmdProc*)test_exec_printf      },
4901      { "sqlite3_exec_hex",              (Tcl_CmdProc*)test_exec_hex         },
4902      { "sqlite3_exec",                  (Tcl_CmdProc*)test_exec             },
4903      { "sqlite3_exec_nr",               (Tcl_CmdProc*)test_exec_nr          },
4904 #ifndef SQLITE_OMIT_GET_TABLE
4905      { "sqlite3_get_table_printf",      (Tcl_CmdProc*)test_get_table_printf },
4906 #endif
4907      { "sqlite3_close",                 (Tcl_CmdProc*)sqlite_test_close     },
4908      { "sqlite3_create_function",       (Tcl_CmdProc*)test_create_function  },
4909      { "sqlite3_create_aggregate",      (Tcl_CmdProc*)test_create_aggregate },
4910      { "sqlite_register_test_function", (Tcl_CmdProc*)test_register_func    },
4911      { "sqlite_abort",                  (Tcl_CmdProc*)sqlite_abort          },
4912      { "sqlite_bind",                   (Tcl_CmdProc*)test_bind             },
4913      { "breakpoint",                    (Tcl_CmdProc*)test_breakpoint       },
4914      { "sqlite3_key",                   (Tcl_CmdProc*)test_key              },
4915      { "sqlite3_rekey",                 (Tcl_CmdProc*)test_rekey            },
4916      { "sqlite_set_magic",              (Tcl_CmdProc*)sqlite_set_magic      },
4917      { "sqlite3_interrupt",             (Tcl_CmdProc*)test_interrupt        },
4918      { "sqlite_delete_function",        (Tcl_CmdProc*)delete_function       },
4919      { "sqlite_delete_collation",       (Tcl_CmdProc*)delete_collation      },
4920      { "sqlite3_get_autocommit",        (Tcl_CmdProc*)get_autocommit        },
4921      { "sqlite3_stack_used",            (Tcl_CmdProc*)test_stack_used       },
4922      { "sqlite3_busy_timeout",          (Tcl_CmdProc*)test_busy_timeout     },
4923      { "printf",                        (Tcl_CmdProc*)test_printf           },
4924      { "sqlite3IoTrace",              (Tcl_CmdProc*)test_io_trace         },
4925   };
4926   static struct {
4927      char *zName;
4928      Tcl_ObjCmdProc *xProc;
4929      void *clientData;
4930   } aObjCmd[] = {
4931      { "sqlite3_connection_pointer",    get_sqlite_pointer, 0 },
4932      { "sqlite3_bind_int",              test_bind_int,      0 },
4933      { "sqlite3_bind_zeroblob",         test_bind_zeroblob, 0 },
4934      { "sqlite3_bind_int64",            test_bind_int64,    0 },
4935      { "sqlite3_bind_double",           test_bind_double,   0 },
4936      { "sqlite3_bind_null",             test_bind_null     ,0 },
4937      { "sqlite3_bind_text",             test_bind_text     ,0 },
4938      { "sqlite3_bind_text16",           test_bind_text16   ,0 },
4939      { "sqlite3_bind_blob",             test_bind_blob     ,0 },
4940      { "sqlite3_bind_parameter_count",  test_bind_parameter_count, 0},
4941      { "sqlite3_bind_parameter_name",   test_bind_parameter_name,  0},
4942      { "sqlite3_bind_parameter_index",  test_bind_parameter_index, 0},
4943      { "sqlite3_clear_bindings",        test_clear_bindings, 0},
4944      { "sqlite3_sleep",                 test_sleep,          0},
4945      { "sqlite3_errcode",               test_errcode       ,0 },
4946      { "sqlite3_extended_errcode",      test_ex_errcode    ,0 },
4947      { "sqlite3_errmsg",                test_errmsg        ,0 },
4948      { "sqlite3_errmsg16",              test_errmsg16      ,0 },
4949      { "sqlite3_open",                  test_open          ,0 },
4950      { "sqlite3_open16",                test_open16        ,0 },
4951      { "sqlite3_complete16",            test_complete16    ,0 },
4952 
4953      { "sqlite3_prepare",               test_prepare       ,0 },
4954      { "sqlite3_prepare16",             test_prepare16     ,0 },
4955      { "sqlite3_prepare_v2",            test_prepare_v2    ,0 },
4956      { "sqlite3_prepare_tkt3134",       test_prepare_tkt3134, 0},
4957      { "sqlite3_prepare16_v2",          test_prepare16_v2  ,0 },
4958      { "sqlite3_finalize",              test_finalize      ,0 },
4959      { "sqlite3_stmt_status",           test_stmt_status   ,0 },
4960      { "sqlite3_reset",                 test_reset         ,0 },
4961      { "sqlite3_expired",               test_expired       ,0 },
4962      { "sqlite3_transfer_bindings",     test_transfer_bind ,0 },
4963      { "sqlite3_changes",               test_changes       ,0 },
4964      { "sqlite3_step",                  test_step          ,0 },
4965      { "sqlite3_sql",                   test_sql           ,0 },
4966      { "sqlite3_next_stmt",             test_next_stmt     ,0 },
4967 
4968      { "sqlite3_release_memory",        test_release_memory,     0},
4969      { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
4970      { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
4971      { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},
4972 
4973      { "sqlite3_load_extension",        test_load_extension,     0},
4974      { "sqlite3_enable_load_extension", test_enable_load,        0},
4975      { "sqlite3_extended_result_codes", test_extended_result_codes, 0},
4976      { "sqlite3_limit",                 test_limit,                 0},
4977 
4978      { "save_prng_state",               save_prng_state,    0 },
4979      { "restore_prng_state",            restore_prng_state, 0 },
4980      { "reset_prng_state",              reset_prng_state,   0 },
4981 
4982      /* sqlite3_column_*() API */
4983      { "sqlite3_column_count",          test_column_count  ,0 },
4984      { "sqlite3_data_count",            test_data_count    ,0 },
4985      { "sqlite3_column_type",           test_column_type   ,0 },
4986      { "sqlite3_column_blob",           test_column_blob   ,0 },
4987      { "sqlite3_column_double",         test_column_double ,0 },
4988      { "sqlite3_column_int64",          test_column_int64  ,0 },
4989      { "sqlite3_column_text",   test_stmt_utf8,  (void*)sqlite3_column_text },
4990      { "sqlite3_column_name",   test_stmt_utf8,  (void*)sqlite3_column_name },
4991      { "sqlite3_column_int",    test_stmt_int,   (void*)sqlite3_column_int  },
4992      { "sqlite3_column_bytes",  test_stmt_int,   (void*)sqlite3_column_bytes},
4993 #ifndef SQLITE_OMIT_DECLTYPE
4994      { "sqlite3_column_decltype",test_stmt_utf8,(void*)sqlite3_column_decltype},
4995 #endif
4996 #ifdef SQLITE_ENABLE_COLUMN_METADATA
4997 { "sqlite3_column_database_name",test_stmt_utf8,(void*)sqlite3_column_database_name},
4998 { "sqlite3_column_table_name",test_stmt_utf8,(void*)sqlite3_column_table_name},
4999 { "sqlite3_column_origin_name",test_stmt_utf8,(void*)sqlite3_column_origin_name},
5000 #endif
5001 
5002 #ifndef SQLITE_OMIT_UTF16
5003      { "sqlite3_column_bytes16", test_stmt_int, (void*)sqlite3_column_bytes16 },
5004      { "sqlite3_column_text16",  test_stmt_utf16, (void*)sqlite3_column_text16},
5005      { "sqlite3_column_name16",  test_stmt_utf16, (void*)sqlite3_column_name16},
5006      { "add_alignment_test_collations", add_alignment_test_collations, 0      },
5007 #ifndef SQLITE_OMIT_DECLTYPE
5008      { "sqlite3_column_decltype16",test_stmt_utf16,(void*)sqlite3_column_decltype16},
5009 #endif
5010 #ifdef SQLITE_ENABLE_COLUMN_METADATA
5011 {"sqlite3_column_database_name16",
5012   test_stmt_utf16, sqlite3_column_database_name16},
5013 {"sqlite3_column_table_name16", test_stmt_utf16, (void*)sqlite3_column_table_name16},
5014 {"sqlite3_column_origin_name16", test_stmt_utf16, (void*)sqlite3_column_origin_name16},
5015 #endif
5016 #endif
5017      { "sqlite3_create_collation_v2", test_create_collation_v2, 0 },
5018      { "sqlite3_global_recover",     test_global_recover, 0   },
5019      { "working_64bit_int",          working_64bit_int,   0   },
5020      { "vfs_unlink_test",            vfs_unlink_test,     0   },
5021      { "vfs_initfail_test",          vfs_initfail_test,   0   },
5022      { "vfs_unregister_all",         vfs_unregister_all,  0   },
5023      { "vfs_reregister_all",         vfs_reregister_all,  0   },
5024      { "file_control_test",          file_control_test,   0   },
5025      { "file_control_lasterrno_test", file_control_lasterrno_test,  0   },
5026      { "file_control_lockproxy_test", file_control_lockproxy_test,  0   },
5027      { "sqlite3_vfs_list",           vfs_list,     0   },
5028 
5029      /* Functions from os.h */
5030 #ifndef SQLITE_OMIT_UTF16
5031      { "add_test_collate",        test_collate, 0            },
5032      { "add_test_collate_needed", test_collate_needed, 0     },
5033      { "add_test_function",       test_function, 0           },
5034 #endif
5035      { "sqlite3_test_errstr",     test_errstr, 0             },
5036      { "tcl_variable_type",       tcl_variable_type, 0       },
5037 #ifndef SQLITE_OMIT_SHARED_CACHE
5038      { "sqlite3_enable_shared_cache", test_enable_shared, 0  },
5039      { "sqlite3_shared_cache_report", sqlite3BtreeSharedCacheReport, 0},
5040 #endif
5041      { "sqlite3_libversion_number", test_libversion_number, 0  },
5042 #ifdef SQLITE_ENABLE_COLUMN_METADATA
5043      { "sqlite3_table_column_metadata", test_table_column_metadata, 0  },
5044 #endif
5045 #ifndef SQLITE_OMIT_INCRBLOB
5046      { "sqlite3_blob_read",  test_blob_read, 0  },
5047      { "sqlite3_blob_write", test_blob_write, 0  },
5048 #endif
5049      { "pcache_stats",       test_pcache_stats, 0  },
5050 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
5051      { "sqlite3_unlock_notify", test_unlock_notify, 0  },
5052 #endif
5053   };
5054   static int bitmask_size = sizeof(Bitmask)*8;
5055   int i;
5056   extern int sqlite3_sync_count, sqlite3_fullsync_count;
5057   extern int sqlite3_opentemp_count;
5058   extern int sqlite3_like_count;
5059   extern int sqlite3_xferopt_count;
5060   extern int sqlite3_pager_readdb_count;
5061   extern int sqlite3_pager_writedb_count;
5062   extern int sqlite3_pager_writej_count;
5063 #if defined(__linux__) && defined(SQLITE_TEST) && SQLITE_THREADSAFE
5064   extern int threadsOverrideEachOthersLocks;
5065 #endif
5066 #if SQLITE_OS_WIN
5067   extern int sqlite3_os_type;
5068 #endif
5069 #ifdef SQLITE_DEBUG
5070   extern int sqlite3WhereTrace;
5071   extern int sqlite3OSTrace;
5072   extern int sqlite3VdbeAddopTrace;
5073 #endif
5074 #ifdef SQLITE_TEST
5075   extern char sqlite3_query_plan[];
5076   static char *query_plan = sqlite3_query_plan;
5077 #ifdef SQLITE_ENABLE_FTS3
5078   extern int sqlite3_fts3_enable_parentheses;
5079 #endif
5080 #endif
5081 
5082   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
5083     Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
5084   }
5085   for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
5086     Tcl_CreateObjCommand(interp, aObjCmd[i].zName,
5087         aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
5088   }
5089   Tcl_LinkVar(interp, "sqlite_search_count",
5090       (char*)&sqlite3_search_count, TCL_LINK_INT);
5091   Tcl_LinkVar(interp, "sqlite_sort_count",
5092       (char*)&sqlite3_sort_count, TCL_LINK_INT);
5093   Tcl_LinkVar(interp, "sqlite3_max_blobsize",
5094       (char*)&sqlite3_max_blobsize, TCL_LINK_INT);
5095   Tcl_LinkVar(interp, "sqlite_like_count",
5096       (char*)&sqlite3_like_count, TCL_LINK_INT);
5097   Tcl_LinkVar(interp, "sqlite_interrupt_count",
5098       (char*)&sqlite3_interrupt_count, TCL_LINK_INT);
5099   Tcl_LinkVar(interp, "sqlite_open_file_count",
5100       (char*)&sqlite3_open_file_count, TCL_LINK_INT);
5101   Tcl_LinkVar(interp, "sqlite_current_time",
5102       (char*)&sqlite3_current_time, TCL_LINK_INT);
5103 #if SQLITE_OS_UNIX && defined(__APPLE__)
5104   Tcl_LinkVar(interp, "sqlite_hostid_num",
5105       (char*)&sqlite3_hostid_num, TCL_LINK_INT);
5106 #endif
5107   Tcl_LinkVar(interp, "sqlite3_xferopt_count",
5108       (char*)&sqlite3_xferopt_count, TCL_LINK_INT);
5109   Tcl_LinkVar(interp, "sqlite3_pager_readdb_count",
5110       (char*)&sqlite3_pager_readdb_count, TCL_LINK_INT);
5111   Tcl_LinkVar(interp, "sqlite3_pager_writedb_count",
5112       (char*)&sqlite3_pager_writedb_count, TCL_LINK_INT);
5113   Tcl_LinkVar(interp, "sqlite3_pager_writej_count",
5114       (char*)&sqlite3_pager_writej_count, TCL_LINK_INT);
5115 #ifndef SQLITE_OMIT_UTF16
5116   Tcl_LinkVar(interp, "unaligned_string_counter",
5117       (char*)&unaligned_string_counter, TCL_LINK_INT);
5118 #endif
5119 #if defined(__linux__) && defined(SQLITE_TEST) && SQLITE_THREADSAFE
5120   Tcl_LinkVar(interp, "threadsOverrideEachOthersLocks",
5121       (char*)&threadsOverrideEachOthersLocks, TCL_LINK_INT);
5122 #endif
5123 #ifndef SQLITE_OMIT_UTF16
5124   Tcl_LinkVar(interp, "sqlite_last_needed_collation",
5125       (char*)&pzNeededCollation, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
5126 #endif
5127 #if SQLITE_OS_WIN
5128   Tcl_LinkVar(interp, "sqlite_os_type",
5129       (char*)&sqlite3_os_type, TCL_LINK_INT);
5130 #endif
5131 #ifdef SQLITE_TEST
5132   Tcl_LinkVar(interp, "sqlite_query_plan",
5133       (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
5134 #endif
5135 #ifdef SQLITE_DEBUG
5136   Tcl_LinkVar(interp, "sqlite_addop_trace",
5137       (char*)&sqlite3VdbeAddopTrace, TCL_LINK_INT);
5138   Tcl_LinkVar(interp, "sqlite_where_trace",
5139       (char*)&sqlite3WhereTrace, TCL_LINK_INT);
5140   Tcl_LinkVar(interp, "sqlite_os_trace",
5141       (char*)&sqlite3OSTrace, TCL_LINK_INT);
5142 #endif
5143 #ifndef SQLITE_OMIT_DISKIO
5144   Tcl_LinkVar(interp, "sqlite_opentemp_count",
5145       (char*)&sqlite3_opentemp_count, TCL_LINK_INT);
5146 #endif
5147   Tcl_LinkVar(interp, "sqlite_static_bind_value",
5148       (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
5149   Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
5150       (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);
5151   Tcl_LinkVar(interp, "sqlite_temp_directory",
5152       (char*)&sqlite3_temp_directory, TCL_LINK_STRING);
5153   Tcl_LinkVar(interp, "bitmask_size",
5154       (char*)&bitmask_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
5155   Tcl_LinkVar(interp, "sqlite_sync_count",
5156       (char*)&sqlite3_sync_count, TCL_LINK_INT);
5157   Tcl_LinkVar(interp, "sqlite_fullsync_count",
5158       (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
5159 #if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
5160   Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
5161       (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
5162 #endif
5163   return TCL_OK;
5164 }
5165