xref: /sqlite-3.40.0/src/test2.c (revision 89bc4bc6)
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 the pager.c module in SQLite.  This code
13 ** is not included in the SQLite library.  It is used for automated
14 ** testing of the SQLite library.
15 **
16 ** $Id: test2.c,v 1.73 2009/07/21 19:25:24 danielk1977 Exp $
17 */
18 #include "sqliteInt.h"
19 #include "tcl.h"
20 #include <stdlib.h>
21 #include <string.h>
22 #include <ctype.h>
23 
24 /*
25 ** Interpret an SQLite error number
26 */
27 static char *errorName(int rc){
28   char *zName;
29   switch( rc ){
30     case SQLITE_OK:         zName = "SQLITE_OK";          break;
31     case SQLITE_ERROR:      zName = "SQLITE_ERROR";       break;
32     case SQLITE_PERM:       zName = "SQLITE_PERM";        break;
33     case SQLITE_ABORT:      zName = "SQLITE_ABORT";       break;
34     case SQLITE_BUSY:       zName = "SQLITE_BUSY";        break;
35     case SQLITE_NOMEM:      zName = "SQLITE_NOMEM";       break;
36     case SQLITE_READONLY:   zName = "SQLITE_READONLY";    break;
37     case SQLITE_INTERRUPT:  zName = "SQLITE_INTERRUPT";   break;
38     case SQLITE_IOERR:      zName = "SQLITE_IOERR";       break;
39     case SQLITE_CORRUPT:    zName = "SQLITE_CORRUPT";     break;
40     case SQLITE_FULL:       zName = "SQLITE_FULL";        break;
41     case SQLITE_CANTOPEN:   zName = "SQLITE_CANTOPEN";    break;
42     case SQLITE_PROTOCOL:   zName = "SQLITE_PROTOCOL";    break;
43     case SQLITE_EMPTY:      zName = "SQLITE_EMPTY";       break;
44     case SQLITE_SCHEMA:     zName = "SQLITE_SCHEMA";      break;
45     case SQLITE_CONSTRAINT: zName = "SQLITE_CONSTRAINT";  break;
46     case SQLITE_MISMATCH:   zName = "SQLITE_MISMATCH";    break;
47     case SQLITE_MISUSE:     zName = "SQLITE_MISUSE";      break;
48     case SQLITE_NOLFS:      zName = "SQLITE_NOLFS";       break;
49     default:                zName = "SQLITE_Unknown";     break;
50   }
51   return zName;
52 }
53 
54 /*
55 ** Page size and reserved size used for testing.
56 */
57 static int test_pagesize = 1024;
58 
59 /*
60 ** Usage:   pager_open FILENAME N-PAGE
61 **
62 ** Open a new pager
63 */
64 static int pager_open(
65   void *NotUsed,
66   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
67   int argc,              /* Number of arguments */
68   const char **argv      /* Text of each argument */
69 ){
70   u16 pageSize;
71   Pager *pPager;
72   int nPage;
73   int rc;
74   char zBuf[100];
75   if( argc!=3 ){
76     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
77        " FILENAME N-PAGE\"", 0);
78     return TCL_ERROR;
79   }
80   if( Tcl_GetInt(interp, argv[2], &nPage) ) return TCL_ERROR;
81   rc = sqlite3PagerOpen(sqlite3_vfs_find(0), &pPager, argv[1], 0, 0,
82       SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_MAIN_DB);
83   if( rc!=SQLITE_OK ){
84     Tcl_AppendResult(interp, errorName(rc), 0);
85     return TCL_ERROR;
86   }
87   sqlite3PagerSetCachesize(pPager, nPage);
88   pageSize = test_pagesize;
89   sqlite3PagerSetPagesize(pPager, &pageSize, -1);
90   sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",pPager);
91   Tcl_AppendResult(interp, zBuf, 0);
92   return TCL_OK;
93 }
94 
95 /*
96 ** Usage:   pager_close ID
97 **
98 ** Close the given pager.
99 */
100 static int pager_close(
101   void *NotUsed,
102   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
103   int argc,              /* Number of arguments */
104   const char **argv      /* Text of each argument */
105 ){
106   Pager *pPager;
107   int rc;
108   if( argc!=2 ){
109     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
110        " ID\"", 0);
111     return TCL_ERROR;
112   }
113   pPager = sqlite3TestTextToPtr(argv[1]);
114   rc = sqlite3PagerClose(pPager);
115   if( rc!=SQLITE_OK ){
116     Tcl_AppendResult(interp, errorName(rc), 0);
117     return TCL_ERROR;
118   }
119   return TCL_OK;
120 }
121 
122 /*
123 ** Usage:   pager_rollback ID
124 **
125 ** Rollback changes
126 */
127 static int pager_rollback(
128   void *NotUsed,
129   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
130   int argc,              /* Number of arguments */
131   const char **argv      /* Text of each argument */
132 ){
133   Pager *pPager;
134   int rc;
135   if( argc!=2 ){
136     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
137        " ID\"", 0);
138     return TCL_ERROR;
139   }
140   pPager = sqlite3TestTextToPtr(argv[1]);
141   rc = sqlite3PagerRollback(pPager);
142   if( rc!=SQLITE_OK ){
143     Tcl_AppendResult(interp, errorName(rc), 0);
144     return TCL_ERROR;
145   }
146   return TCL_OK;
147 }
148 
149 /*
150 ** Usage:   pager_commit ID
151 **
152 ** Commit all changes
153 */
154 static int pager_commit(
155   void *NotUsed,
156   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
157   int argc,              /* Number of arguments */
158   const char **argv      /* Text of each argument */
159 ){
160   Pager *pPager;
161   int rc;
162   if( argc!=2 ){
163     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
164        " ID\"", 0);
165     return TCL_ERROR;
166   }
167   pPager = sqlite3TestTextToPtr(argv[1]);
168   rc = sqlite3PagerCommitPhaseOne(pPager, 0, 0);
169   if( rc!=SQLITE_OK ){
170     Tcl_AppendResult(interp, errorName(rc), 0);
171     return TCL_ERROR;
172   }
173   rc = sqlite3PagerCommitPhaseTwo(pPager);
174   if( rc!=SQLITE_OK ){
175     Tcl_AppendResult(interp, errorName(rc), 0);
176     return TCL_ERROR;
177   }
178   return TCL_OK;
179 }
180 
181 /*
182 ** Usage:   pager_stmt_begin ID
183 **
184 ** Start a new checkpoint.
185 */
186 static int pager_stmt_begin(
187   void *NotUsed,
188   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
189   int argc,              /* Number of arguments */
190   const char **argv      /* Text of each argument */
191 ){
192   Pager *pPager;
193   int rc;
194   if( argc!=2 ){
195     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
196        " ID\"", 0);
197     return TCL_ERROR;
198   }
199   pPager = sqlite3TestTextToPtr(argv[1]);
200   rc = sqlite3PagerOpenSavepoint(pPager, 1);
201   if( rc!=SQLITE_OK ){
202     Tcl_AppendResult(interp, errorName(rc), 0);
203     return TCL_ERROR;
204   }
205   return TCL_OK;
206 }
207 
208 /*
209 ** Usage:   pager_stmt_rollback ID
210 **
211 ** Rollback changes to a checkpoint
212 */
213 static int pager_stmt_rollback(
214   void *NotUsed,
215   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
216   int argc,              /* Number of arguments */
217   const char **argv      /* Text of each argument */
218 ){
219   Pager *pPager;
220   int rc;
221   if( argc!=2 ){
222     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
223        " ID\"", 0);
224     return TCL_ERROR;
225   }
226   pPager = sqlite3TestTextToPtr(argv[1]);
227   rc = sqlite3PagerSavepoint(pPager, SAVEPOINT_ROLLBACK, 0);
228   sqlite3PagerSavepoint(pPager, SAVEPOINT_RELEASE, 0);
229   if( rc!=SQLITE_OK ){
230     Tcl_AppendResult(interp, errorName(rc), 0);
231     return TCL_ERROR;
232   }
233   return TCL_OK;
234 }
235 
236 /*
237 ** Usage:   pager_stmt_commit ID
238 **
239 ** Commit changes to a checkpoint
240 */
241 static int pager_stmt_commit(
242   void *NotUsed,
243   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
244   int argc,              /* Number of arguments */
245   const char **argv      /* Text of each argument */
246 ){
247   Pager *pPager;
248   int rc;
249   if( argc!=2 ){
250     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
251        " ID\"", 0);
252     return TCL_ERROR;
253   }
254   pPager = sqlite3TestTextToPtr(argv[1]);
255   rc = sqlite3PagerSavepoint(pPager, SAVEPOINT_RELEASE, 0);
256   if( rc!=SQLITE_OK ){
257     Tcl_AppendResult(interp, errorName(rc), 0);
258     return TCL_ERROR;
259   }
260   return TCL_OK;
261 }
262 
263 /*
264 ** Usage:   pager_stats ID
265 **
266 ** Return pager statistics.
267 */
268 static int pager_stats(
269   void *NotUsed,
270   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
271   int argc,              /* Number of arguments */
272   const char **argv      /* Text of each argument */
273 ){
274   Pager *pPager;
275   int i, *a;
276   if( argc!=2 ){
277     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
278        " ID\"", 0);
279     return TCL_ERROR;
280   }
281   pPager = sqlite3TestTextToPtr(argv[1]);
282   a = sqlite3PagerStats(pPager);
283   for(i=0; i<9; i++){
284     static char *zName[] = {
285       "ref", "page", "max", "size", "state", "err",
286       "hit", "miss", "ovfl",
287     };
288     char zBuf[100];
289     Tcl_AppendElement(interp, zName[i]);
290     sqlite3_snprintf(sizeof(zBuf),zBuf,"%d",a[i]);
291     Tcl_AppendElement(interp, zBuf);
292   }
293   return TCL_OK;
294 }
295 
296 /*
297 ** Usage:   pager_pagecount ID
298 **
299 ** Return the size of the database file.
300 */
301 static int pager_pagecount(
302   void *NotUsed,
303   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
304   int argc,              /* Number of arguments */
305   const char **argv      /* Text of each argument */
306 ){
307   Pager *pPager;
308   char zBuf[100];
309   int nPage;
310   if( argc!=2 ){
311     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
312        " ID\"", 0);
313     return TCL_ERROR;
314   }
315   pPager = sqlite3TestTextToPtr(argv[1]);
316   sqlite3PagerPagecount(pPager, &nPage);
317   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", nPage);
318   Tcl_AppendResult(interp, zBuf, 0);
319   return TCL_OK;
320 }
321 
322 /*
323 ** Usage:   page_get ID PGNO
324 **
325 ** Return a pointer to a page from the database.
326 */
327 static int page_get(
328   void *NotUsed,
329   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
330   int argc,              /* Number of arguments */
331   const char **argv      /* Text of each argument */
332 ){
333   Pager *pPager;
334   char zBuf[100];
335   DbPage *pPage;
336   int pgno;
337   int rc;
338   if( argc!=3 ){
339     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
340        " ID PGNO\"", 0);
341     return TCL_ERROR;
342   }
343   pPager = sqlite3TestTextToPtr(argv[1]);
344   if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
345   rc = sqlite3PagerSharedLock(pPager);
346   if( rc==SQLITE_OK ){
347     rc = sqlite3PagerGet(pPager, pgno, &pPage);
348   }
349   if( rc!=SQLITE_OK ){
350     Tcl_AppendResult(interp, errorName(rc), 0);
351     return TCL_ERROR;
352   }
353   sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",pPage);
354   Tcl_AppendResult(interp, zBuf, 0);
355   return TCL_OK;
356 }
357 
358 /*
359 ** Usage:   page_lookup ID PGNO
360 **
361 ** Return a pointer to a page if the page is already in cache.
362 ** If not in cache, return an empty string.
363 */
364 static int page_lookup(
365   void *NotUsed,
366   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
367   int argc,              /* Number of arguments */
368   const char **argv      /* Text of each argument */
369 ){
370   Pager *pPager;
371   char zBuf[100];
372   DbPage *pPage;
373   int pgno;
374   if( argc!=3 ){
375     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
376        " ID PGNO\"", 0);
377     return TCL_ERROR;
378   }
379   pPager = sqlite3TestTextToPtr(argv[1]);
380   if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
381   pPage = sqlite3PagerLookup(pPager, pgno);
382   if( pPage ){
383     sqlite3_snprintf(sizeof(zBuf),zBuf,"%p",pPage);
384     Tcl_AppendResult(interp, zBuf, 0);
385   }
386   return TCL_OK;
387 }
388 
389 /*
390 ** Usage:   pager_truncate ID PGNO
391 */
392 static int pager_truncate(
393   void *NotUsed,
394   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
395   int argc,              /* Number of arguments */
396   const char **argv      /* Text of each argument */
397 ){
398   Pager *pPager;
399   int pgno;
400   if( argc!=3 ){
401     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
402        " ID PGNO\"", 0);
403     return TCL_ERROR;
404   }
405   pPager = sqlite3TestTextToPtr(argv[1]);
406   if( Tcl_GetInt(interp, argv[2], &pgno) ) return TCL_ERROR;
407   sqlite3PagerTruncateImage(pPager, pgno);
408   return TCL_OK;
409 }
410 
411 
412 /*
413 ** Usage:   page_unref PAGE
414 **
415 ** Drop a pointer to a page.
416 */
417 static int page_unref(
418   void *NotUsed,
419   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
420   int argc,              /* Number of arguments */
421   const char **argv      /* Text of each argument */
422 ){
423   DbPage *pPage;
424   if( argc!=2 ){
425     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
426        " PAGE\"", 0);
427     return TCL_ERROR;
428   }
429   pPage = (DbPage *)sqlite3TestTextToPtr(argv[1]);
430   sqlite3PagerUnref(pPage);
431   return TCL_OK;
432 }
433 
434 /*
435 ** Usage:   page_read PAGE
436 **
437 ** Return the content of a page
438 */
439 static int page_read(
440   void *NotUsed,
441   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
442   int argc,              /* Number of arguments */
443   const char **argv      /* Text of each argument */
444 ){
445   char zBuf[100];
446   DbPage *pPage;
447   if( argc!=2 ){
448     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
449        " PAGE\"", 0);
450     return TCL_ERROR;
451   }
452   pPage = sqlite3TestTextToPtr(argv[1]);
453   memcpy(zBuf, sqlite3PagerGetData(pPage), sizeof(zBuf));
454   Tcl_AppendResult(interp, zBuf, 0);
455   return TCL_OK;
456 }
457 
458 /*
459 ** Usage:   page_number PAGE
460 **
461 ** Return the page number for a page.
462 */
463 static int page_number(
464   void *NotUsed,
465   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
466   int argc,              /* Number of arguments */
467   const char **argv      /* Text of each argument */
468 ){
469   char zBuf[100];
470   DbPage *pPage;
471   if( argc!=2 ){
472     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
473        " PAGE\"", 0);
474     return TCL_ERROR;
475   }
476   pPage = (DbPage *)sqlite3TestTextToPtr(argv[1]);
477   sqlite3_snprintf(sizeof(zBuf), zBuf, "%d", sqlite3PagerPagenumber(pPage));
478   Tcl_AppendResult(interp, zBuf, 0);
479   return TCL_OK;
480 }
481 
482 /*
483 ** Usage:   page_write PAGE DATA
484 **
485 ** Write something into a page.
486 */
487 static int page_write(
488   void *NotUsed,
489   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
490   int argc,              /* Number of arguments */
491   const char **argv      /* Text of each argument */
492 ){
493   DbPage *pPage;
494   char *pData;
495   int rc;
496   if( argc!=3 ){
497     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
498        " PAGE DATA\"", 0);
499     return TCL_ERROR;
500   }
501   pPage = (DbPage *)sqlite3TestTextToPtr(argv[1]);
502   rc = sqlite3PagerWrite(pPage);
503   if( rc!=SQLITE_OK ){
504     Tcl_AppendResult(interp, errorName(rc), 0);
505     return TCL_ERROR;
506   }
507   pData = sqlite3PagerGetData(pPage);
508   strncpy(pData, argv[2], test_pagesize-1);
509   pData[test_pagesize-1] = 0;
510   return TCL_OK;
511 }
512 
513 #ifndef SQLITE_OMIT_DISKIO
514 /*
515 ** Usage:   fake_big_file  N  FILENAME
516 **
517 ** Write a few bytes at the N megabyte point of FILENAME.  This will
518 ** create a large file.  If the file was a valid SQLite database, then
519 ** the next time the database is opened, SQLite will begin allocating
520 ** new pages after N.  If N is 2096 or bigger, this will test the
521 ** ability of SQLite to write to large files.
522 */
523 static int fake_big_file(
524   void *NotUsed,
525   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
526   int argc,              /* Number of arguments */
527   const char **argv      /* Text of each argument */
528 ){
529   sqlite3_vfs *pVfs;
530   sqlite3_file *fd = 0;
531   int rc;
532   int n;
533   i64 offset;
534   if( argc!=3 ){
535     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
536        " N-MEGABYTES FILE\"", 0);
537     return TCL_ERROR;
538   }
539   if( Tcl_GetInt(interp, argv[1], &n) ) return TCL_ERROR;
540 
541   pVfs = sqlite3_vfs_find(0);
542   rc = sqlite3OsOpenMalloc(pVfs, argv[2], &fd,
543       (SQLITE_OPEN_CREATE|SQLITE_OPEN_READWRITE|SQLITE_OPEN_MAIN_DB), 0
544   );
545   if( rc ){
546     Tcl_AppendResult(interp, "open failed: ", errorName(rc), 0);
547     return TCL_ERROR;
548   }
549   offset = n;
550   offset *= 1024*1024;
551   rc = sqlite3OsWrite(fd, "Hello, World!", 14, offset);
552   sqlite3OsCloseFree(fd);
553   if( rc ){
554     Tcl_AppendResult(interp, "write failed: ", errorName(rc), 0);
555     return TCL_ERROR;
556   }
557   return TCL_OK;
558 }
559 #endif
560 
561 
562 /*
563 ** test_control_pending_byte  PENDING_BYTE
564 **
565 ** Set the PENDING_BYTE using the sqlite3_test_control() interface.
566 */
567 static int testPendingByte(
568   void *NotUsed,
569   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
570   int argc,              /* Number of arguments */
571   const char **argv      /* Text of each argument */
572 ){
573   int pbyte;
574   int rc;
575   if( argc!=2 ){
576     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
577                      " PENDING-BYTE\"", (void*)0);
578   }
579   if( Tcl_GetInt(interp, argv[1], &pbyte) ) return TCL_ERROR;
580   rc = sqlite3_test_control(SQLITE_TESTCTRL_PENDING_BYTE, pbyte);
581   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
582   return TCL_OK;
583 }
584 
585 /*
586 ** sqlite3BitvecBuiltinTest SIZE PROGRAM
587 **
588 ** Invoke the SQLITE_TESTCTRL_BITVEC_TEST operator on test_control.
589 ** See comments on sqlite3BitvecBuiltinTest() for additional information.
590 */
591 static int testBitvecBuiltinTest(
592   void *NotUsed,
593   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
594   int argc,              /* Number of arguments */
595   const char **argv      /* Text of each argument */
596 ){
597   int sz, rc;
598   int nProg = 0;
599   int aProg[100];
600   const char *z;
601   if( argc!=3 ){
602     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
603                      " SIZE PROGRAM\"", (void*)0);
604   }
605   if( Tcl_GetInt(interp, argv[1], &sz) ) return TCL_ERROR;
606   z = argv[2];
607   while( nProg<99 && *z ){
608     while( *z && !sqlite3Isdigit(*z) ){ z++; }
609     if( *z==0 ) break;
610     aProg[nProg++] = atoi(z);
611     while( sqlite3Isdigit(*z) ){ z++; }
612   }
613   aProg[nProg] = 0;
614   rc = sqlite3_test_control(SQLITE_TESTCTRL_BITVEC_TEST, sz, aProg);
615   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
616   return TCL_OK;
617 }
618 
619 /*
620 ** Register commands with the TCL interpreter.
621 */
622 int Sqlitetest2_Init(Tcl_Interp *interp){
623   extern int sqlite3_io_error_persist;
624   extern int sqlite3_io_error_pending;
625   extern int sqlite3_io_error_hit;
626   extern int sqlite3_io_error_hardhit;
627   extern int sqlite3_diskfull_pending;
628   extern int sqlite3_diskfull;
629   static struct {
630     char *zName;
631     Tcl_CmdProc *xProc;
632   } aCmd[] = {
633     { "pager_open",              (Tcl_CmdProc*)pager_open          },
634     { "pager_close",             (Tcl_CmdProc*)pager_close         },
635     { "pager_commit",            (Tcl_CmdProc*)pager_commit        },
636     { "pager_rollback",          (Tcl_CmdProc*)pager_rollback      },
637     { "pager_stmt_begin",        (Tcl_CmdProc*)pager_stmt_begin    },
638     { "pager_stmt_commit",       (Tcl_CmdProc*)pager_stmt_commit   },
639     { "pager_stmt_rollback",     (Tcl_CmdProc*)pager_stmt_rollback },
640     { "pager_stats",             (Tcl_CmdProc*)pager_stats         },
641     { "pager_pagecount",         (Tcl_CmdProc*)pager_pagecount     },
642     { "page_get",                (Tcl_CmdProc*)page_get            },
643     { "page_lookup",             (Tcl_CmdProc*)page_lookup         },
644     { "page_unref",              (Tcl_CmdProc*)page_unref          },
645     { "page_read",               (Tcl_CmdProc*)page_read           },
646     { "page_write",              (Tcl_CmdProc*)page_write          },
647     { "page_number",             (Tcl_CmdProc*)page_number         },
648     { "pager_truncate",          (Tcl_CmdProc*)pager_truncate      },
649 #ifndef SQLITE_OMIT_DISKIO
650     { "fake_big_file",           (Tcl_CmdProc*)fake_big_file       },
651 #endif
652     { "sqlite3BitvecBuiltinTest",(Tcl_CmdProc*)testBitvecBuiltinTest     },
653     { "sqlite3_test_control_pending_byte", (Tcl_CmdProc*)testPendingByte },
654   };
655   int i;
656   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
657     Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
658   }
659   Tcl_LinkVar(interp, "sqlite_io_error_pending",
660      (char*)&sqlite3_io_error_pending, TCL_LINK_INT);
661   Tcl_LinkVar(interp, "sqlite_io_error_persist",
662      (char*)&sqlite3_io_error_persist, TCL_LINK_INT);
663   Tcl_LinkVar(interp, "sqlite_io_error_hit",
664      (char*)&sqlite3_io_error_hit, TCL_LINK_INT);
665   Tcl_LinkVar(interp, "sqlite_io_error_hardhit",
666      (char*)&sqlite3_io_error_hardhit, TCL_LINK_INT);
667   Tcl_LinkVar(interp, "sqlite_diskfull_pending",
668      (char*)&sqlite3_diskfull_pending, TCL_LINK_INT);
669   Tcl_LinkVar(interp, "sqlite_diskfull",
670      (char*)&sqlite3_diskfull, TCL_LINK_INT);
671   Tcl_LinkVar(interp, "sqlite_pending_byte",
672      (char*)&sqlite3PendingByte, TCL_LINK_INT | TCL_LINK_READ_ONLY);
673   return TCL_OK;
674 }
675