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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** A TCL Interface to SQLite. Append this file to sqlite3.c and
13** compile the whole thing to build a TCL-enabled version of SQLite.
14**
15** $Id: tclsqlite.c,v 1.203 2007/09/14 16:20:01 danielk1977 Exp $
16*/
17#include "tcl.h"
18#include <errno.h>
19
20/*
21** Some additional include files are needed if this file is not
22** appended to the amalgamation.
23*/
24#ifndef SQLITE_AMALGAMATION
25# include "sqliteInt.h"
26# include <stdlib.h>
27# include <string.h>
28# include <assert.h>
29# include <ctype.h>
30#endif
31
32/*
33 * Windows needs to know which symbols to export. Unix does not.
34 * BUILD_sqlite should be undefined for Unix.
35 */
36#ifdef BUILD_sqlite
37#undef TCL_STORAGE_CLASS
38#define TCL_STORAGE_CLASS DLLEXPORT
39#endif /* BUILD_sqlite */
40
41#define NUM_PREPARED_STMTS 10
42#define MAX_PREPARED_STMTS 100
43
44/*
45** If TCL uses UTF-8 and SQLite is configured to use iso8859, then we
46** have to do a translation when going between the two. Set the
47** UTF_TRANSLATION_NEEDED macro to indicate that we need to do
48** this translation.
49*/
50#if defined(TCL_UTF_MAX) && !defined(SQLITE_UTF8)
51# define UTF_TRANSLATION_NEEDED 1
52#endif
53
54/*
55** New SQL functions can be created as TCL scripts. Each such function
56** is described by an instance of the following structure.
57*/
58typedef struct SqlFunc SqlFunc;
59struct SqlFunc {
60 Tcl_Interp *interp; /* The TCL interpret to execute the function */
61 Tcl_Obj *pScript; /* The Tcl_Obj representation of the script */
62 int useEvalObjv; /* True if it is safe to use Tcl_EvalObjv */
63 char *zName; /* Name of this function */
64 SqlFunc *pNext; /* Next function on the list of them all */
65};
66
67/*
68** New collation sequences function can be created as TCL scripts. Each such
69** function is described by an instance of the following structure.
70*/
71typedef struct SqlCollate SqlCollate;
72struct SqlCollate {
73 Tcl_Interp *interp; /* The TCL interpret to execute the function */
74 char *zScript; /* The script to be run */
75 SqlCollate *pNext; /* Next function on the list of them all */
76};
77
78/*
79** Prepared statements are cached for faster execution. Each prepared
80** statement is described by an instance of the following structure.
81*/
82typedef struct SqlPreparedStmt SqlPreparedStmt;
83struct SqlPreparedStmt {
84 SqlPreparedStmt *pNext; /* Next in linked list */
85 SqlPreparedStmt *pPrev; /* Previous on the list */
86 sqlite3_stmt *pStmt; /* The prepared statement */
87 int nSql; /* chars in zSql[] */
88 char zSql[1]; /* Text of the SQL statement */
89};
90
91typedef struct IncrblobChannel IncrblobChannel;
92
93/*
94** There is one instance of this structure for each SQLite database
95** that has been opened by the SQLite TCL interface.
96*/
97typedef struct SqliteDb SqliteDb;
98struct SqliteDb {
99 sqlite3 *db; /* The "real" database structure. MUST BE FIRST */
100 Tcl_Interp *interp; /* The interpreter used for this database */
101 char *zBusy; /* The busy callback routine */
102 char *zCommit; /* The commit hook callback routine */
103 char *zTrace; /* The trace callback routine */
104 char *zProfile; /* The profile callback routine */
105 char *zProgress; /* The progress callback routine */
106 char *zAuth; /* The authorization callback routine */
107 char *zNull; /* Text to substitute for an SQL NULL value */
108 SqlFunc *pFunc; /* List of SQL functions */
109 Tcl_Obj *pUpdateHook; /* Update hook script (if any) */
110 Tcl_Obj *pRollbackHook; /* Rollback hook script (if any) */
111 SqlCollate *pCollate; /* List of SQL collation functions */
112 int rc; /* Return code of most recent sqlite3_exec() */
113 Tcl_Obj *pCollateNeeded; /* Collation needed script */
114 SqlPreparedStmt *stmtList; /* List of prepared statements*/
115 SqlPreparedStmt *stmtLast; /* Last statement in the list */
116 int maxStmt; /* The next maximum number of stmtList */
117 int nStmt; /* Number of statements in stmtList */
118 IncrblobChannel *pIncrblob;/* Linked list of open incrblob channels */
119};
120
121struct IncrblobChannel {
122 sqlite3_blob *pBlob; /* sqlite3 blob handle */
123 SqliteDb *pDb; /* Associated database connection */
124 int iSeek; /* Current seek offset */
125 Tcl_Channel channel; /* Channel identifier */
126 IncrblobChannel *pNext; /* Linked list of all open incrblob channels */
127 IncrblobChannel *pPrev; /* Linked list of all open incrblob channels */
128};
129
130#ifndef SQLITE_OMIT_INCRBLOB
131/*
132** Close all incrblob channels opened using database connection pDb.
133** This is called when shutting down the database connection.
134*/
135static void closeIncrblobChannels(SqliteDb *pDb){
136 IncrblobChannel *p;
137 IncrblobChannel *pNext;
138
139 for(p=pDb->pIncrblob; p; p=pNext){
140 pNext = p->pNext;
141
142 /* Note: Calling unregister here call Tcl_Close on the incrblob channel,
143 ** which deletes the IncrblobChannel structure at *p. So do not
144 ** call Tcl_Free() here.
145 */
146 Tcl_UnregisterChannel(pDb->interp, p->channel);
147 }
148}
149
150/*
151** Close an incremental blob channel.
152*/
153static int incrblobClose(ClientData instanceData, Tcl_Interp *interp){
154 IncrblobChannel *p = (IncrblobChannel *)instanceData;
155 int rc = sqlite3_blob_close(p->pBlob);
156 sqlite3 *db = p->pDb->db;
157
158 /* Remove the channel from the SqliteDb.pIncrblob list. */
159 if( p->pNext ){
160 p->pNext->pPrev = p->pPrev;
161 }
162 if( p->pPrev ){
163 p->pPrev->pNext = p->pNext;
164 }
165 if( p->pDb->pIncrblob==p ){
166 p->pDb->pIncrblob = p->pNext;
167 }
168
169 /* Free the IncrblobChannel structure */
170 Tcl_Free((char *)p);
171
172 if( rc!=SQLITE_OK ){
173 Tcl_SetResult(interp, (char *)sqlite3_errmsg(db), TCL_VOLATILE);
174 return TCL_ERROR;
175 }
176 return TCL_OK;
177}
178
179/*
180** Read data from an incremental blob channel.
181*/
182static int incrblobInput(
183 ClientData instanceData,
184 char *buf,
185 int bufSize,
186 int *errorCodePtr
187){
188 IncrblobChannel *p = (IncrblobChannel *)instanceData;
189 int nRead = bufSize; /* Number of bytes to read */
190 int nBlob; /* Total size of the blob */
191 int rc; /* sqlite error code */
192
193 nBlob = sqlite3_blob_bytes(p->pBlob);
194 if( (p->iSeek+nRead)>nBlob ){
195 nRead = nBlob-p->iSeek;
196 }
197 if( nRead<=0 ){
198 return 0;
199 }
200
201 rc = sqlite3_blob_read(p->pBlob, (void *)buf, nRead, p->iSeek);
202 if( rc!=SQLITE_OK ){
203 *errorCodePtr = rc;
204 return -1;
205 }
206
207 p->iSeek += nRead;
208 return nRead;
209}
210
211/*
212** Write data to an incremental blob channel.
213*/
214static int incrblobOutput(
215 ClientData instanceData,
216 CONST char *buf,
217 int toWrite,
218 int *errorCodePtr
219){
220 IncrblobChannel *p = (IncrblobChannel *)instanceData;
221 int nWrite = toWrite; /* Number of bytes to write */
222 int nBlob; /* Total size of the blob */
223 int rc; /* sqlite error code */
224
225 nBlob = sqlite3_blob_bytes(p->pBlob);
226 if( (p->iSeek+nWrite)>nBlob ){
227 *errorCodePtr = EINVAL;
228 return -1;
229 }
230 if( nWrite<=0 ){
231 return 0;
232 }
233
234 rc = sqlite3_blob_write(p->pBlob, (void *)buf, nWrite, p->iSeek);
235 if( rc!=SQLITE_OK ){
236 *errorCodePtr = EIO;
237 return -1;
238 }
239
240 p->iSeek += nWrite;
241 return nWrite;
242}
243
244/*
245** Seek an incremental blob channel.
246*/
247static int incrblobSeek(
248 ClientData instanceData,
249 long offset,
250 int seekMode,
251 int *errorCodePtr
252){
253 IncrblobChannel *p = (IncrblobChannel *)instanceData;
254
255 switch( seekMode ){
256 case SEEK_SET:
257 p->iSeek = offset;
258 break;
259 case SEEK_CUR:
260 p->iSeek += offset;
261 break;
262 case SEEK_END:
263 p->iSeek = sqlite3_blob_bytes(p->pBlob) + offset;
264 break;
265
266 default: assert(!"Bad seekMode");
267 }
268
269 return p->iSeek;
270}
271
272
273static void incrblobWatch(ClientData instanceData, int mode){
274 /* NO-OP */
275}
276static int incrblobHandle(ClientData instanceData, int dir, ClientData *hPtr){
277 return TCL_ERROR;
278}
279
280static Tcl_ChannelType IncrblobChannelType = {
281 "incrblob", /* typeName */
282 TCL_CHANNEL_VERSION_2, /* version */
283 incrblobClose, /* closeProc */
284 incrblobInput, /* inputProc */
285 incrblobOutput, /* outputProc */
286 incrblobSeek, /* seekProc */
287 0, /* setOptionProc */
288 0, /* getOptionProc */
289 incrblobWatch, /* watchProc (this is a no-op) */
290 incrblobHandle, /* getHandleProc (always returns error) */
291 0, /* close2Proc */
292 0, /* blockModeProc */
293 0, /* flushProc */
294 0, /* handlerProc */
295 0, /* wideSeekProc */
296};
297
298/*
299** Create a new incrblob channel.
300*/
301static int createIncrblobChannel(
302 Tcl_Interp *interp,
303 SqliteDb *pDb,
304 const char *zDb,
305 const char *zTable,
306 const char *zColumn,
307 sqlite_int64 iRow,
308 int isReadonly
309){
310 IncrblobChannel *p;
311 sqlite3 *db = pDb->db;
312 sqlite3_blob *pBlob;
313 int rc;
314 int flags = TCL_READABLE|(isReadonly ? 0 : TCL_WRITABLE);
315
316 /* This variable is used to name the channels: "incrblob_[incr count]" */
317 static int count = 0;
318 char zChannel[64];
319
320 rc = sqlite3_blob_open(db, zDb, zTable, zColumn, iRow, !isReadonly, &pBlob);
321 if( rc!=SQLITE_OK ){
322 Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
323 return TCL_ERROR;
324 }
325
326 p = (IncrblobChannel *)Tcl_Alloc(sizeof(IncrblobChannel));
327 p->iSeek = 0;
328 p->pBlob = pBlob;
329
330 sqlite3_snprintf(sizeof(zChannel), zChannel, "incrblob_%d", ++count);
331 p->channel = Tcl_CreateChannel(&IncrblobChannelType, zChannel, p, flags);
332 Tcl_RegisterChannel(interp, p->channel);
333
334 /* Link the new channel into the SqliteDb.pIncrblob list. */
335 p->pNext = pDb->pIncrblob;
336 p->pPrev = 0;
337 if( p->pNext ){
338 p->pNext->pPrev = p;
339 }
340 pDb->pIncrblob = p;
341 p->pDb = pDb;
342
343 Tcl_SetResult(interp, (char *)Tcl_GetChannelName(p->channel), TCL_VOLATILE);
344 return TCL_OK;
345}
346#else /* else clause for "#ifndef SQLITE_OMIT_INCRBLOB" */
347 #define closeIncrblobChannels(pDb)
348#endif
349
350/*
351** Look at the script prefix in pCmd. We will be executing this script
352** after first appending one or more arguments. This routine analyzes
353** the script to see if it is safe to use Tcl_EvalObjv() on the script
354** rather than the more general Tcl_EvalEx(). Tcl_EvalObjv() is much
355** faster.
356**
357** Scripts that are safe to use with Tcl_EvalObjv() consists of a
358** command name followed by zero or more arguments with no [...] or $
359** or {...} or ; to be seen anywhere. Most callback scripts consist
360** of just a single procedure name and they meet this requirement.
361*/
362static int safeToUseEvalObjv(Tcl_Interp *interp, Tcl_Obj *pCmd){
363 /* We could try to do something with Tcl_Parse(). But we will instead
364 ** just do a search for forbidden characters. If any of the forbidden
365 ** characters appear in pCmd, we will report the string as unsafe.
366 */
367 const char *z;
368 int n;
369 z = Tcl_GetStringFromObj(pCmd, &n);
370 while( n-- > 0 ){
371 int c = *(z++);
372 if( c=='$' || c=='[' || c==';' ) return 0;
373 }
374 return 1;
375}
376
377/*
378** Find an SqlFunc structure with the given name. Or create a new
379** one if an existing one cannot be found. Return a pointer to the
380** structure.
381*/
382static SqlFunc *findSqlFunc(SqliteDb *pDb, const char *zName){
383 SqlFunc *p, *pNew;
384 int i;
385 pNew = (SqlFunc*)Tcl_Alloc( sizeof(*pNew) + strlen(zName) + 1 );
386 pNew->zName = (char*)&pNew[1];
387 for(i=0; zName[i]; i++){ pNew->zName[i] = tolower(zName[i]); }
388 pNew->zName[i] = 0;
389 for(p=pDb->pFunc; p; p=p->pNext){
390 if( strcmp(p->zName, pNew->zName)==0 ){
391 Tcl_Free((char*)pNew);
392 return p;
393 }
394 }
395 pNew->interp = pDb->interp;
396 pNew->pScript = 0;
397 pNew->pNext = pDb->pFunc;
398 pDb->pFunc = pNew;
399 return pNew;
400}
401
402/*
403** Finalize and free a list of prepared statements
404*/
405static void flushStmtCache( SqliteDb *pDb ){
406 SqlPreparedStmt *pPreStmt;
407
408 while( pDb->stmtList ){
409 sqlite3_finalize( pDb->stmtList->pStmt );
410 pPreStmt = pDb->stmtList;
411 pDb->stmtList = pDb->stmtList->pNext;
412 Tcl_Free( (char*)pPreStmt );
413 }
414 pDb->nStmt = 0;
415 pDb->stmtLast = 0;
416}
417
418/*
419** TCL calls this procedure when an sqlite3 database command is
420** deleted.
421*/
422static void DbDeleteCmd(void *db){
423 SqliteDb *pDb = (SqliteDb*)db;
424 flushStmtCache(pDb);
425 closeIncrblobChannels(pDb);
426 sqlite3_close(pDb->db);
427 while( pDb->pFunc ){
428 SqlFunc *pFunc = pDb->pFunc;
429 pDb->pFunc = pFunc->pNext;
430 Tcl_DecrRefCount(pFunc->pScript);
431 Tcl_Free((char*)pFunc);
432 }
433 while( pDb->pCollate ){
434 SqlCollate *pCollate = pDb->pCollate;
435 pDb->pCollate = pCollate->pNext;
436 Tcl_Free((char*)pCollate);
437 }
438 if( pDb->zBusy ){
439 Tcl_Free(pDb->zBusy);
440 }
441 if( pDb->zTrace ){
442 Tcl_Free(pDb->zTrace);
443 }
444 if( pDb->zProfile ){
445 Tcl_Free(pDb->zProfile);
446 }
447 if( pDb->zAuth ){
448 Tcl_Free(pDb->zAuth);
449 }
450 if( pDb->zNull ){
451 Tcl_Free(pDb->zNull);
452 }
453 if( pDb->pUpdateHook ){
454 Tcl_DecrRefCount(pDb->pUpdateHook);
455 }
456 if( pDb->pRollbackHook ){
457 Tcl_DecrRefCount(pDb->pRollbackHook);
458 }
459 if( pDb->pCollateNeeded ){
460 Tcl_DecrRefCount(pDb->pCollateNeeded);
461 }
462 Tcl_Free((char*)pDb);
463}
464
465/*
466** This routine is called when a database file is locked while trying
467** to execute SQL.
468*/
469static int DbBusyHandler(void *cd, int nTries){
470 SqliteDb *pDb = (SqliteDb*)cd;
471 int rc;
472 char zVal[30];
473
474 sqlite3_snprintf(sizeof(zVal), zVal, "%d", nTries);
475 rc = Tcl_VarEval(pDb->interp, pDb->zBusy, " ", zVal, (char*)0);
476 if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
477 return 0;
478 }
479 return 1;
480}
481
482/*
483** This routine is invoked as the 'progress callback' for the database.
484*/
485static int DbProgressHandler(void *cd){
486 SqliteDb *pDb = (SqliteDb*)cd;
487 int rc;
488
489 assert( pDb->zProgress );
490 rc = Tcl_Eval(pDb->interp, pDb->zProgress);
491 if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
492 return 1;
493 }
494 return 0;
495}
496
497#ifndef SQLITE_OMIT_TRACE
498/*
499** This routine is called by the SQLite trace handler whenever a new
500** block of SQL is executed. The TCL script in pDb->zTrace is executed.
501*/
502static void DbTraceHandler(void *cd, const char *zSql){
503 SqliteDb *pDb = (SqliteDb*)cd;
504 Tcl_DString str;
505
506 Tcl_DStringInit(&str);
507 Tcl_DStringAppend(&str, pDb->zTrace, -1);
508 Tcl_DStringAppendElement(&str, zSql);
509 Tcl_Eval(pDb->interp, Tcl_DStringValue(&str));
510 Tcl_DStringFree(&str);
511 Tcl_ResetResult(pDb->interp);
512}
513#endif
514
515#ifndef SQLITE_OMIT_TRACE
516/*
517** This routine is called by the SQLite profile handler after a statement
518** SQL has executed. The TCL script in pDb->zProfile is evaluated.
519*/
520static void DbProfileHandler(void *cd, const char *zSql, sqlite_uint64 tm){
521 SqliteDb *pDb = (SqliteDb*)cd;
522 Tcl_DString str;
523 char zTm[100];
524
525 sqlite3_snprintf(sizeof(zTm)-1, zTm, "%lld", tm);
526 Tcl_DStringInit(&str);
527 Tcl_DStringAppend(&str, pDb->zProfile, -1);
528 Tcl_DStringAppendElement(&str, zSql);
529 Tcl_DStringAppendElement(&str, zTm);
530 Tcl_Eval(pDb->interp, Tcl_DStringValue(&str));
531 Tcl_DStringFree(&str);
532 Tcl_ResetResult(pDb->interp);
533}
534#endif
535
536/*
537** This routine is called when a transaction is committed. The
538** TCL script in pDb->zCommit is executed. If it returns non-zero or
539** if it throws an exception, the transaction is rolled back instead
540** of being committed.
541*/
542static int DbCommitHandler(void *cd){
543 SqliteDb *pDb = (SqliteDb*)cd;
544 int rc;
545
546 rc = Tcl_Eval(pDb->interp, pDb->zCommit);
547 if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
548 return 1;
549 }
550 return 0;
551}
552
553static void DbRollbackHandler(void *clientData){
554 SqliteDb *pDb = (SqliteDb*)clientData;
555 assert(pDb->pRollbackHook);
556 if( TCL_OK!=Tcl_EvalObjEx(pDb->interp, pDb->pRollbackHook, 0) ){
557 Tcl_BackgroundError(pDb->interp);
558 }
559}
560
561static void DbUpdateHandler(
562 void *p,
563 int op,
564 const char *zDb,
565 const char *zTbl,
566 sqlite_int64 rowid
567){
568 SqliteDb *pDb = (SqliteDb *)p;
569 Tcl_Obj *pCmd;
570
571 assert( pDb->pUpdateHook );
572 assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE );
573
574 pCmd = Tcl_DuplicateObj(pDb->pUpdateHook);
575 Tcl_IncrRefCount(pCmd);
576 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(
577 ( (op==SQLITE_INSERT)?"INSERT":(op==SQLITE_UPDATE)?"UPDATE":"DELETE"), -1));
578 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zDb, -1));
579 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zTbl, -1));
580 Tcl_ListObjAppendElement(0, pCmd, Tcl_NewWideIntObj(rowid));
581 Tcl_EvalObjEx(pDb->interp, pCmd, TCL_EVAL_DIRECT);
582}
583
584static void tclCollateNeeded(
585 void *pCtx,
586 sqlite3 *db,
587 int enc,
588 const char *zName
589){
590 SqliteDb *pDb = (SqliteDb *)pCtx;
591 Tcl_Obj *pScript = Tcl_DuplicateObj(pDb->pCollateNeeded);
592 Tcl_IncrRefCount(pScript);
593 Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj(zName, -1));
594 Tcl_EvalObjEx(pDb->interp, pScript, 0);
595 Tcl_DecrRefCount(pScript);
596}
597
598/*
599** This routine is called to evaluate an SQL collation function implemented
600** using TCL script.
601*/
602static int tclSqlCollate(
603 void *pCtx,
604 int nA,
605 const void *zA,
606 int nB,
607 const void *zB
608){
609 SqlCollate *p = (SqlCollate *)pCtx;
610 Tcl_Obj *pCmd;
611
612 pCmd = Tcl_NewStringObj(p->zScript, -1);
613 Tcl_IncrRefCount(pCmd);
614 Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zA, nA));
615 Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zB, nB));
616 Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT);
617 Tcl_DecrRefCount(pCmd);
618 return (atoi(Tcl_GetStringResult(p->interp)));
619}
620
621/*
622** This routine is called to evaluate an SQL function implemented
623** using TCL script.
624*/
625static void tclSqlFunc(sqlite3_context *context, int argc, sqlite3_value**argv){
626 SqlFunc *p = sqlite3_user_data(context);
627 Tcl_Obj *pCmd;
628 int i;
629 int rc;
630
631 if( argc==0 ){
632 /* If there are no arguments to the function, call Tcl_EvalObjEx on the
633 ** script object directly. This allows the TCL compiler to generate
634 ** bytecode for the command on the first invocation and thus make
635 ** subsequent invocations much faster. */
636 pCmd = p->pScript;
637 Tcl_IncrRefCount(pCmd);
638 rc = Tcl_EvalObjEx(p->interp, pCmd, 0);
639 Tcl_DecrRefCount(pCmd);
640 }else{
641 /* If there are arguments to the function, make a shallow copy of the
642 ** script object, lappend the arguments, then evaluate the copy.
643 **
644 ** By "shallow" copy, we mean a only the outer list Tcl_Obj is duplicated.
645 ** The new Tcl_Obj contains pointers to the original list elements.
646 ** That way, when Tcl_EvalObjv() is run and shimmers the first element
647 ** of the list to tclCmdNameType, that alternate representation will
648 ** be preserved and reused on the next invocation.
649 */
650 Tcl_Obj **aArg;
651 int nArg;
652 if( Tcl_ListObjGetElements(p->interp, p->pScript, &nArg, &aArg) ){
653 sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
654 return;
655 }
656 pCmd = Tcl_NewListObj(nArg, aArg);
657 Tcl_IncrRefCount(pCmd);
658 for(i=0; i<argc; i++){
659 sqlite3_value *pIn = argv[i];
660 Tcl_Obj *pVal;
661
662 /* Set pVal to contain the i'th column of this row. */
663 switch( sqlite3_value_type(pIn) ){
664 case SQLITE_BLOB: {
665 int bytes = sqlite3_value_bytes(pIn);
666 pVal = Tcl_NewByteArrayObj(sqlite3_value_blob(pIn), bytes);
667 break;
668 }
669 case SQLITE_INTEGER: {
670 sqlite_int64 v = sqlite3_value_int64(pIn);
671 if( v>=-2147483647 && v<=2147483647 ){
672 pVal = Tcl_NewIntObj(v);
673 }else{
674 pVal = Tcl_NewWideIntObj(v);
675 }
676 break;
677 }
678 case SQLITE_FLOAT: {
679 double r = sqlite3_value_double(pIn);
680 pVal = Tcl_NewDoubleObj(r);
681 break;
682 }
683 case SQLITE_NULL: {
684 pVal = Tcl_NewStringObj("", 0);
685 break;
686 }
687 default: {
688 int bytes = sqlite3_value_bytes(pIn);
689 pVal = Tcl_NewStringObj((char *)sqlite3_value_text(pIn), bytes);
690 break;
691 }
692 }
693 rc = Tcl_ListObjAppendElement(p->interp, pCmd, pVal);
694 if( rc ){
695 Tcl_DecrRefCount(pCmd);
696 sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
697 return;
698 }
699 }
700 if( !p->useEvalObjv ){
701 /* Tcl_EvalObjEx() will automatically call Tcl_EvalObjv() if pCmd
702 ** is a list without a string representation. To prevent this from
703 ** happening, make sure pCmd has a valid string representation */
704 Tcl_GetString(pCmd);
705 }
706 rc = Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT);
707 Tcl_DecrRefCount(pCmd);
708 }
709
710 if( rc && rc!=TCL_RETURN ){
711 sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
712 }else{
713 Tcl_Obj *pVar = Tcl_GetObjResult(p->interp);
714 int n;
715 u8 *data;
716 char *zType = pVar->typePtr ? pVar->typePtr->name : "";
717 char c = zType[0];
718 if( c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0 ){
719 /* Only return a BLOB type if the Tcl variable is a bytearray and
720 ** has no string representation. */
721 data = Tcl_GetByteArrayFromObj(pVar, &n);
722 sqlite3_result_blob(context, data, n, SQLITE_TRANSIENT);
723 }else if( c=='b' && strcmp(zType,"boolean")==0 ){
724 Tcl_GetIntFromObj(0, pVar, &n);
725 sqlite3_result_int(context, n);
726 }else if( c=='d' && strcmp(zType,"double")==0 ){
727 double r;
728 Tcl_GetDoubleFromObj(0, pVar, &r);
729 sqlite3_result_double(context, r);
730 }else if( (c=='w' && strcmp(zType,"wideInt")==0) ||
731 (c=='i' && strcmp(zType,"int")==0) ){
732 Tcl_WideInt v;
733 Tcl_GetWideIntFromObj(0, pVar, &v);
734 sqlite3_result_int64(context, v);
735 }else{
736 data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n);
737 sqlite3_result_text(context, (char *)data, n, SQLITE_TRANSIENT);
738 }
739 }
740}
741
742#ifndef SQLITE_OMIT_AUTHORIZATION
743/*
744** This is the authentication function. It appends the authentication
745** type code and the two arguments to zCmd[] then invokes the result
746** on the interpreter. The reply is examined to determine if the
747** authentication fails or succeeds.
748*/
749static int auth_callback(
750 void *pArg,
751 int code,
752 const char *zArg1,
753 const char *zArg2,
754 const char *zArg3,
755 const char *zArg4
756){
757 char *zCode;
758 Tcl_DString str;
759 int rc;
760 const char *zReply;
761 SqliteDb *pDb = (SqliteDb*)pArg;
762
763 switch( code ){
764 case SQLITE_COPY : zCode="SQLITE_COPY"; break;
765 case SQLITE_CREATE_INDEX : zCode="SQLITE_CREATE_INDEX"; break;
766 case SQLITE_CREATE_TABLE : zCode="SQLITE_CREATE_TABLE"; break;
767 case SQLITE_CREATE_TEMP_INDEX : zCode="SQLITE_CREATE_TEMP_INDEX"; break;
768 case SQLITE_CREATE_TEMP_TABLE : zCode="SQLITE_CREATE_TEMP_TABLE"; break;
769 case SQLITE_CREATE_TEMP_TRIGGER: zCode="SQLITE_CREATE_TEMP_TRIGGER"; break;
770 case SQLITE_CREATE_TEMP_VIEW : zCode="SQLITE_CREATE_TEMP_VIEW"; break;
771 case SQLITE_CREATE_TRIGGER : zCode="SQLITE_CREATE_TRIGGER"; break;
772 case SQLITE_CREATE_VIEW : zCode="SQLITE_CREATE_VIEW"; break;
773 case SQLITE_DELETE : zCode="SQLITE_DELETE"; break;
774 case SQLITE_DROP_INDEX : zCode="SQLITE_DROP_INDEX"; break;
775 case SQLITE_DROP_TABLE : zCode="SQLITE_DROP_TABLE"; break;
776 case SQLITE_DROP_TEMP_INDEX : zCode="SQLITE_DROP_TEMP_INDEX"; break;
777 case SQLITE_DROP_TEMP_TABLE : zCode="SQLITE_DROP_TEMP_TABLE"; break;
778 case SQLITE_DROP_TEMP_TRIGGER : zCode="SQLITE_DROP_TEMP_TRIGGER"; break;
779 case SQLITE_DROP_TEMP_VIEW : zCode="SQLITE_DROP_TEMP_VIEW"; break;
780 case SQLITE_DROP_TRIGGER : zCode="SQLITE_DROP_TRIGGER"; break;
781 case SQLITE_DROP_VIEW : zCode="SQLITE_DROP_VIEW"; break;
782 case SQLITE_INSERT : zCode="SQLITE_INSERT"; break;
783 case SQLITE_PRAGMA : zCode="SQLITE_PRAGMA"; break;
784 case SQLITE_READ : zCode="SQLITE_READ"; break;
785 case SQLITE_SELECT : zCode="SQLITE_SELECT"; break;
786 case SQLITE_TRANSACTION : zCode="SQLITE_TRANSACTION"; break;
787 case SQLITE_UPDATE : zCode="SQLITE_UPDATE"; break;
788 case SQLITE_ATTACH : zCode="SQLITE_ATTACH"; break;
789 case SQLITE_DETACH : zCode="SQLITE_DETACH"; break;
790 case SQLITE_ALTER_TABLE : zCode="SQLITE_ALTER_TABLE"; break;
791 case SQLITE_REINDEX : zCode="SQLITE_REINDEX"; break;
792 case SQLITE_ANALYZE : zCode="SQLITE_ANALYZE"; break;
793 case SQLITE_CREATE_VTABLE : zCode="SQLITE_CREATE_VTABLE"; break;
794 case SQLITE_DROP_VTABLE : zCode="SQLITE_DROP_VTABLE"; break;
795 case SQLITE_FUNCTION : zCode="SQLITE_FUNCTION"; break;
796 default : zCode="????"; break;
797 }
798 Tcl_DStringInit(&str);
799 Tcl_DStringAppend(&str, pDb->zAuth, -1);
800 Tcl_DStringAppendElement(&str, zCode);
801 Tcl_DStringAppendElement(&str, zArg1 ? zArg1 : "");
802 Tcl_DStringAppendElement(&str, zArg2 ? zArg2 : "");
803 Tcl_DStringAppendElement(&str, zArg3 ? zArg3 : "");
804 Tcl_DStringAppendElement(&str, zArg4 ? zArg4 : "");
805 rc = Tcl_GlobalEval(pDb->interp, Tcl_DStringValue(&str));
806 Tcl_DStringFree(&str);
807 zReply = Tcl_GetStringResult(pDb->interp);
808 if( strcmp(zReply,"SQLITE_OK")==0 ){
809 rc = SQLITE_OK;
810 }else if( strcmp(zReply,"SQLITE_DENY")==0 ){
811 rc = SQLITE_DENY;
812 }else if( strcmp(zReply,"SQLITE_IGNORE")==0 ){
813 rc = SQLITE_IGNORE;
814 }else{
815 rc = 999;
816 }
817 return rc;
818}
819#endif /* SQLITE_OMIT_AUTHORIZATION */
820
821/*
822** zText is a pointer to text obtained via an sqlite3_result_text()
823** or similar interface. This routine returns a Tcl string object,
824** reference count set to 0, containing the text. If a translation
825** between iso8859 and UTF-8 is required, it is preformed.
826*/
827static Tcl_Obj *dbTextToObj(char const *zText){
828 Tcl_Obj *pVal;
829#ifdef UTF_TRANSLATION_NEEDED
830 Tcl_DString dCol;
831 Tcl_DStringInit(&dCol);
832 Tcl_ExternalToUtfDString(NULL, zText, -1, &dCol);
833 pVal = Tcl_NewStringObj(Tcl_DStringValue(&dCol), -1);
834 Tcl_DStringFree(&dCol);
835#else
836 pVal = Tcl_NewStringObj(zText, -1);
837#endif
838 return pVal;
839}
840
841/*
842** This routine reads a line of text from FILE in, stores
843** the text in memory obtained from malloc() and returns a pointer
844** to the text. NULL is returned at end of file, or if malloc()
845** fails.
846**
847** The interface is like "readline" but no command-line editing
848** is done.
849**
850** copied from shell.c from '.import' command
851*/
852static char *local_getline(char *zPrompt, FILE *in){
853 char *zLine;
854 int nLine;
855 int n;
856 int eol;
857
858 nLine = 100;
859 zLine = malloc( nLine );
860 if( zLine==0 ) return 0;
861 n = 0;
862 eol = 0;
863 while( !eol ){
864 if( n+100>nLine ){
865 nLine = nLine*2 + 100;
866 zLine = realloc(zLine, nLine);
867 if( zLine==0 ) return 0;
868 }
869 if( fgets(&zLine[n], nLine - n, in)==0 ){
870 if( n==0 ){
871 free(zLine);
872 return 0;
873 }
874 zLine[n] = 0;
875 eol = 1;
876 break;
877 }
878 while( zLine[n] ){ n++; }
879 if( n>0 && zLine[n-1]=='\n' ){
880 n--;
881 zLine[n] = 0;
882 eol = 1;
883 }
884 }
885 zLine = realloc( zLine, n+1 );
886 return zLine;
887}
888
889/*
890** The "sqlite" command below creates a new Tcl command for each
891** connection it opens to an SQLite database. This routine is invoked
892** whenever one of those connection-specific commands is executed
893** in Tcl. For example, if you run Tcl code like this:
894**
895** sqlite3 db1 "my_database"
896** db1 close
897**
898** The first command opens a connection to the "my_database" database
899** and calls that connection "db1". The second command causes this
900** subroutine to be invoked.
901*/
902static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
903 SqliteDb *pDb = (SqliteDb*)cd;
904 int choice;
905 int rc = TCL_OK;
906 static const char *DB_strs[] = {
907 "authorizer", "busy", "cache",
908 "changes", "close", "collate",
909 "collation_needed", "commit_hook", "complete",
910 "copy", "enable_load_extension","errorcode",
911 "eval", "exists", "function",
912 "incrblob", "interrupt", "last_insert_rowid",
913 "nullvalue", "onecolumn", "profile",
914 "progress", "rekey", "rollback_hook",
915 "timeout", "total_changes", "trace",
916 "transaction", "update_hook", "version",
917 0
918 };
919 enum DB_enum {
920 DB_AUTHORIZER, DB_BUSY, DB_CACHE,
921 DB_CHANGES, DB_CLOSE, DB_COLLATE,
922 DB_COLLATION_NEEDED, DB_COMMIT_HOOK, DB_COMPLETE,
923 DB_COPY, DB_ENABLE_LOAD_EXTENSION,DB_ERRORCODE,
924 DB_EVAL, DB_EXISTS, DB_FUNCTION,
925 DB_INCRBLOB, DB_INTERRUPT, DB_LAST_INSERT_ROWID,
926 DB_NULLVALUE, DB_ONECOLUMN, DB_PROFILE,
927 DB_PROGRESS, DB_REKEY, DB_ROLLBACK_HOOK,
928 DB_TIMEOUT, DB_TOTAL_CHANGES, DB_TRACE,
929 DB_TRANSACTION, DB_UPDATE_HOOK, DB_VERSION
930 };
931 /* don't leave trailing commas on DB_enum, it confuses the AIX xlc compiler */
932
933 if( objc<2 ){
934 Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
935 return TCL_ERROR;
936 }
937 if( Tcl_GetIndexFromObj(interp, objv[1], DB_strs, "option", 0, &choice) ){
938 return TCL_ERROR;
939 }
940
941 switch( (enum DB_enum)choice ){
942
943 /* $db authorizer ?CALLBACK?
944 **
945 ** Invoke the given callback to authorize each SQL operation as it is
946 ** compiled. 5 arguments are appended to the callback before it is
947 ** invoked:
948 **
949 ** (1) The authorization type (ex: SQLITE_CREATE_TABLE, SQLITE_INSERT, ...)
950 ** (2) First descriptive name (depends on authorization type)
951 ** (3) Second descriptive name
952 ** (4) Name of the database (ex: "main", "temp")
953 ** (5) Name of trigger that is doing the access
954 **
955 ** The callback should return on of the following strings: SQLITE_OK,
956 ** SQLITE_IGNORE, or SQLITE_DENY. Any other return value is an error.
957 **
958 ** If this method is invoked with no arguments, the current authorization
959 ** callback string is returned.
960 */
961 case DB_AUTHORIZER: {
962#ifdef SQLITE_OMIT_AUTHORIZATION
963 Tcl_AppendResult(interp, "authorization not available in this build", 0);
964 return TCL_ERROR;
965#else
966 if( objc>3 ){
967 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
968 return TCL_ERROR;
969 }else if( objc==2 ){
970 if( pDb->zAuth ){
971 Tcl_AppendResult(interp, pDb->zAuth, 0);
972 }
973 }else{
974 char *zAuth;
975 int len;
976 if( pDb->zAuth ){
977 Tcl_Free(pDb->zAuth);
978 }
979 zAuth = Tcl_GetStringFromObj(objv[2], &len);
980 if( zAuth && len>0 ){
981 pDb->zAuth = Tcl_Alloc( len + 1 );
982 memcpy(pDb->zAuth, zAuth, len+1);
983 }else{
984 pDb->zAuth = 0;
985 }
986 if( pDb->zAuth ){
987 pDb->interp = interp;
988 sqlite3_set_authorizer(pDb->db, auth_callback, pDb);
989 }else{
990 sqlite3_set_authorizer(pDb->db, 0, 0);
991 }
992 }
993#endif
994 break;
995 }
996
997 /* $db busy ?CALLBACK?
998 **
999 ** Invoke the given callback if an SQL statement attempts to open
1000 ** a locked database file.
1001 */
1002 case DB_BUSY: {
1003 if( objc>3 ){
1004 Tcl_WrongNumArgs(interp, 2, objv, "CALLBACK");
1005 return TCL_ERROR;
1006 }else if( objc==2 ){
1007 if( pDb->zBusy ){
1008 Tcl_AppendResult(interp, pDb->zBusy, 0);
1009 }
1010 }else{
1011 char *zBusy;
1012 int len;
1013 if( pDb->zBusy ){
1014 Tcl_Free(pDb->zBusy);
1015 }
1016 zBusy = Tcl_GetStringFromObj(objv[2], &len);
1017 if( zBusy && len>0 ){
1018 pDb->zBusy = Tcl_Alloc( len + 1 );
1019 memcpy(pDb->zBusy, zBusy, len+1);
1020 }else{
1021 pDb->zBusy = 0;
1022 }
1023 if( pDb->zBusy ){
1024 pDb->interp = interp;
1025 sqlite3_busy_handler(pDb->db, DbBusyHandler, pDb);
1026 }else{
1027 sqlite3_busy_handler(pDb->db, 0, 0);
1028 }
1029 }
1030 break;
1031 }
1032
1033 /* $db cache flush
1034 ** $db cache size n
1035 **
1036 ** Flush the prepared statement cache, or set the maximum number of
1037 ** cached statements.
1038 */
1039 case DB_CACHE: {
1040 char *subCmd;
1041 int n;
1042
1043 if( objc<=2 ){
1044 Tcl_WrongNumArgs(interp, 1, objv, "cache option ?arg?");
1045 return TCL_ERROR;
1046 }
1047 subCmd = Tcl_GetStringFromObj( objv[2], 0 );
1048 if( *subCmd=='f' && strcmp(subCmd,"flush")==0 ){
1049 if( objc!=3 ){
1050 Tcl_WrongNumArgs(interp, 2, objv, "flush");
1051 return TCL_ERROR;
1052 }else{
1053 flushStmtCache( pDb );
1054 }
1055 }else if( *subCmd=='s' && strcmp(subCmd,"size")==0 ){
1056 if( objc!=4 ){
1057 Tcl_WrongNumArgs(interp, 2, objv, "size n");
1058 return TCL_ERROR;
1059 }else{
1060 if( TCL_ERROR==Tcl_GetIntFromObj(interp, objv[3], &n) ){
1061 Tcl_AppendResult( interp, "cannot convert \"",
1062 Tcl_GetStringFromObj(objv[3],0), "\" to integer", 0);
1063 return TCL_ERROR;
1064 }else{
1065 if( n<0 ){
1066 flushStmtCache( pDb );
1067 n = 0;
1068 }else if( n>MAX_PREPARED_STMTS ){
1069 n = MAX_PREPARED_STMTS;
1070 }
1071 pDb->maxStmt = n;
1072 }
1073 }
1074 }else{
1075 Tcl_AppendResult( interp, "bad option \"",
1076 Tcl_GetStringFromObj(objv[0],0), "\": must be flush or size", 0);
1077 return TCL_ERROR;
1078 }
1079 break;
1080 }
1081
1082 /* $db changes
1083 **
1084 ** Return the number of rows that were modified, inserted, or deleted by
1085 ** the most recent INSERT, UPDATE or DELETE statement, not including
1086 ** any changes made by trigger programs.
1087 */
1088 case DB_CHANGES: {
1089 Tcl_Obj *pResult;
1090 if( objc!=2 ){
1091 Tcl_WrongNumArgs(interp, 2, objv, "");
1092 return TCL_ERROR;
1093 }
1094 pResult = Tcl_GetObjResult(interp);
1095 Tcl_SetIntObj(pResult, sqlite3_changes(pDb->db));
1096 break;
1097 }
1098
1099 /* $db close
1100 **
1101 ** Shutdown the database
1102 */
1103 case DB_CLOSE: {
1104 Tcl_DeleteCommand(interp, Tcl_GetStringFromObj(objv[0], 0));
1105 break;
1106 }
1107
1108 /*
1109 ** $db collate NAME SCRIPT
1110 **
1111 ** Create a new SQL collation function called NAME. Whenever
1112 ** that function is called, invoke SCRIPT to evaluate the function.
1113 */
1114 case DB_COLLATE: {
1115 SqlCollate *pCollate;
1116 char *zName;
1117 char *zScript;
1118 int nScript;
1119 if( objc!=4 ){
1120 Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT");
1121 return TCL_ERROR;
1122 }
1123 zName = Tcl_GetStringFromObj(objv[2], 0);
1124 zScript = Tcl_GetStringFromObj(objv[3], &nScript);
1125 pCollate = (SqlCollate*)Tcl_Alloc( sizeof(*pCollate) + nScript + 1 );
1126 if( pCollate==0 ) return TCL_ERROR;
1127 pCollate->interp = interp;
1128 pCollate->pNext = pDb->pCollate;
1129 pCollate->zScript = (char*)&pCollate[1];
1130 pDb->pCollate = pCollate;
1131 memcpy(pCollate->zScript, zScript, nScript+1);
1132 if( sqlite3_create_collation(pDb->db, zName, SQLITE_UTF8,
1133 pCollate, tclSqlCollate) ){
1134 Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
1135 return TCL_ERROR;
1136 }
1137 break;
1138 }
1139
1140 /*
1141 ** $db collation_needed SCRIPT
1142 **
1143 ** Create a new SQL collation function called NAME. Whenever
1144 ** that function is called, invoke SCRIPT to evaluate the function.
1145 */
1146 case DB_COLLATION_NEEDED: {
1147 if( objc!=3 ){
1148 Tcl_WrongNumArgs(interp, 2, objv, "SCRIPT");
1149 return TCL_ERROR;
1150 }
1151 if( pDb->pCollateNeeded ){
1152 Tcl_DecrRefCount(pDb->pCollateNeeded);
1153 }
1154 pDb->pCollateNeeded = Tcl_DuplicateObj(objv[2]);
1155 Tcl_IncrRefCount(pDb->pCollateNeeded);
1156 sqlite3_collation_needed(pDb->db, pDb, tclCollateNeeded);
1157 break;
1158 }
1159
1160 /* $db commit_hook ?CALLBACK?
1161 **
1162 ** Invoke the given callback just before committing every SQL transaction.
1163 ** If the callback throws an exception or returns non-zero, then the
1164 ** transaction is aborted. If CALLBACK is an empty string, the callback
1165 ** is disabled.
1166 */
1167 case DB_COMMIT_HOOK: {
1168 if( objc>3 ){
1169 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
1170 return TCL_ERROR;
1171 }else if( objc==2 ){
1172 if( pDb->zCommit ){
1173 Tcl_AppendResult(interp, pDb->zCommit, 0);
1174 }
1175 }else{
1176 char *zCommit;
1177 int len;
1178 if( pDb->zCommit ){
1179 Tcl_Free(pDb->zCommit);
1180 }
1181 zCommit = Tcl_GetStringFromObj(objv[2], &len);
1182 if( zCommit && len>0 ){
1183 pDb->zCommit = Tcl_Alloc( len + 1 );
1184 memcpy(pDb->zCommit, zCommit, len+1);
1185 }else{
1186 pDb->zCommit = 0;
1187 }
1188 if( pDb->zCommit ){
1189 pDb->interp = interp;
1190 sqlite3_commit_hook(pDb->db, DbCommitHandler, pDb);
1191 }else{
1192 sqlite3_commit_hook(pDb->db, 0, 0);
1193 }
1194 }
1195 break;
1196 }
1197
1198 /* $db complete SQL
1199 **
1200 ** Return TRUE if SQL is a complete SQL statement. Return FALSE if
1201 ** additional lines of input are needed. This is similar to the
1202 ** built-in "info complete" command of Tcl.
1203 */
1204 case DB_COMPLETE: {
1205#ifndef SQLITE_OMIT_COMPLETE
1206 Tcl_Obj *pResult;
1207 int isComplete;
1208 if( objc!=3 ){
1209 Tcl_WrongNumArgs(interp, 2, objv, "SQL");
1210 return TCL_ERROR;
1211 }
1212 isComplete = sqlite3_complete( Tcl_GetStringFromObj(objv[2], 0) );
1213 pResult = Tcl_GetObjResult(interp);
1214 Tcl_SetBooleanObj(pResult, isComplete);
1215#endif
1216 break;
1217 }
1218
1219 /* $db copy conflict-algorithm table filename ?SEPARATOR? ?NULLINDICATOR?
1220 **
1221 ** Copy data into table from filename, optionally using SEPARATOR
1222 ** as column separators. If a column contains a null string, or the
1223 ** value of NULLINDICATOR, a NULL is inserted for the column.
1224 ** conflict-algorithm is one of the sqlite conflict algorithms:
1225 ** rollback, abort, fail, ignore, replace
1226 ** On success, return the number of lines processed, not necessarily same
1227 ** as 'db changes' due to conflict-algorithm selected.
1228 **
1229 ** This code is basically an implementation/enhancement of
1230 ** the sqlite3 shell.c ".import" command.
1231 **
1232 ** This command usage is equivalent to the sqlite2.x COPY statement,
1233 ** which imports file data into a table using the PostgreSQL COPY file format:
1234 ** $db copy $conflit_algo $table_name $filename \t \\N
1235 */
1236 case DB_COPY: {
1237 char *zTable; /* Insert data into this table */
1238 char *zFile; /* The file from which to extract data */
1239 char *zConflict; /* The conflict algorithm to use */
1240 sqlite3_stmt *pStmt; /* A statement */
1241 int rc; /* Result code */
1242 int nCol; /* Number of columns in the table */
1243 int nByte; /* Number of bytes in an SQL string */
1244 int i, j; /* Loop counters */
1245 int nSep; /* Number of bytes in zSep[] */
1246 int nNull; /* Number of bytes in zNull[] */
1247 char *zSql; /* An SQL statement */
1248 char *zLine; /* A single line of input from the file */
1249 char **azCol; /* zLine[] broken up into columns */
1250 char *zCommit; /* How to commit changes */
1251 FILE *in; /* The input file */
1252 int lineno = 0; /* Line number of input file */
1253 char zLineNum[80]; /* Line number print buffer */
1254 Tcl_Obj *pResult; /* interp result */
1255
1256 char *zSep;
1257 char *zNull;
1258 if( objc<5 || objc>7 ){
1259 Tcl_WrongNumArgs(interp, 2, objv,
1260 "CONFLICT-ALGORITHM TABLE FILENAME ?SEPARATOR? ?NULLINDICATOR?");
1261 return TCL_ERROR;
1262 }
1263 if( objc>=6 ){
1264 zSep = Tcl_GetStringFromObj(objv[5], 0);
1265 }else{
1266 zSep = "\t";
1267 }
1268 if( objc>=7 ){
1269 zNull = Tcl_GetStringFromObj(objv[6], 0);
1270 }else{
1271 zNull = "";
1272 }
1273 zConflict = Tcl_GetStringFromObj(objv[2], 0);
1274 zTable = Tcl_GetStringFromObj(objv[3], 0);
1275 zFile = Tcl_GetStringFromObj(objv[4], 0);
1276 nSep = strlen(zSep);
1277 nNull = strlen(zNull);
1278 if( nSep==0 ){
1279 Tcl_AppendResult(interp,"Error: non-null separator required for copy",0);
1280 return TCL_ERROR;
1281 }
1282 if(sqlite3StrICmp(zConflict, "rollback") != 0 &&
1283 sqlite3StrICmp(zConflict, "abort" ) != 0 &&
1284 sqlite3StrICmp(zConflict, "fail" ) != 0 &&
1285 sqlite3StrICmp(zConflict, "ignore" ) != 0 &&
1286 sqlite3StrICmp(zConflict, "replace" ) != 0 ) {
1287 Tcl_AppendResult(interp, "Error: \"", zConflict,
1288 "\", conflict-algorithm must be one of: rollback, "
1289 "abort, fail, ignore, or replace", 0);
1290 return TCL_ERROR;
1291 }
1292 zSql = sqlite3_mprintf("SELECT * FROM '%q'", zTable);
1293 if( zSql==0 ){
1294 Tcl_AppendResult(interp, "Error: no such table: ", zTable, 0);
1295 return TCL_ERROR;
1296 }
1297 nByte = strlen(zSql);
1298 rc = sqlite3_prepare(pDb->db, zSql, -1, &pStmt, 0);
1299 sqlite3_free(zSql);
1300 if( rc ){
1301 Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), 0);
1302 nCol = 0;
1303 }else{
1304 nCol = sqlite3_column_count(pStmt);
1305 }
1306 sqlite3_finalize(pStmt);
1307 if( nCol==0 ) {
1308 return TCL_ERROR;
1309 }
1310 zSql = malloc( nByte + 50 + nCol*2 );
1311 if( zSql==0 ) {
1312 Tcl_AppendResult(interp, "Error: can't malloc()", 0);
1313 return TCL_ERROR;
1314 }
1315 sqlite3_snprintf(nByte+50, zSql, "INSERT OR %q INTO '%q' VALUES(?",
1316 zConflict, zTable);
1317 j = strlen(zSql);
1318 for(i=1; i<nCol; i++){
1319 zSql[j++] = ',';
1320 zSql[j++] = '?';
1321 }
1322 zSql[j++] = ')';
1323 zSql[j] = 0;
1324 rc = sqlite3_prepare(pDb->db, zSql, -1, &pStmt, 0);
1325 free(zSql);
1326 if( rc ){
1327 Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), 0);
1328 sqlite3_finalize(pStmt);
1329 return TCL_ERROR;
1330 }
1331 in = fopen(zFile, "rb");
1332 if( in==0 ){
1333 Tcl_AppendResult(interp, "Error: cannot open file: ", zFile, NULL);
1334 sqlite3_finalize(pStmt);
1335 return TCL_ERROR;
1336 }
1337 azCol = malloc( sizeof(azCol[0])*(nCol+1) );
1338 if( azCol==0 ) {
1339 Tcl_AppendResult(interp, "Error: can't malloc()", 0);
1340 fclose(in);
1341 return TCL_ERROR;
1342 }
1343 (void)sqlite3_exec(pDb->db, "BEGIN", 0, 0, 0);
1344 zCommit = "COMMIT";
1345 while( (zLine = local_getline(0, in))!=0 ){
1346 char *z;
1347 i = 0;
1348 lineno++;
1349 azCol[0] = zLine;
1350 for(i=0, z=zLine; *z; z++){
1351 if( *z==zSep[0] && strncmp(z, zSep, nSep)==0 ){
1352 *z = 0;
1353 i++;
1354 if( i<nCol ){
1355 azCol[i] = &z[nSep];
1356 z += nSep-1;
1357 }
1358 }
1359 }
1360 if( i+1!=nCol ){
1361 char *zErr;
1362 int nErr = strlen(zFile) + 200;
1363 zErr = malloc(nErr);
1364 if( zErr ){
1365 sqlite3_snprintf(nErr, zErr,
1366 "Error: %s line %d: expected %d columns of data but found %d",
1367 zFile, lineno, nCol, i+1);
1368 Tcl_AppendResult(interp, zErr, 0);
1369 free(zErr);
1370 }
1371 zCommit = "ROLLBACK";
1372 break;
1373 }
1374 for(i=0; i<nCol; i++){
1375 /* check for null data, if so, bind as null */
1376 if ((nNull>0 && strcmp(azCol[i], zNull)==0) || strlen(azCol[i])==0) {
1377 sqlite3_bind_null(pStmt, i+1);
1378 }else{
1379 sqlite3_bind_text(pStmt, i+1, azCol[i], -1, SQLITE_STATIC);
1380 }
1381 }
1382 sqlite3_step(pStmt);
1383 rc = sqlite3_reset(pStmt);
1384 free(zLine);
1385 if( rc!=SQLITE_OK ){
1386 Tcl_AppendResult(interp,"Error: ", sqlite3_errmsg(pDb->db), 0);
1387 zCommit = "ROLLBACK";
1388 break;
1389 }
1390 }
1391 free(azCol);
1392 fclose(in);
1393 sqlite3_finalize(pStmt);
1394 (void)sqlite3_exec(pDb->db, zCommit, 0, 0, 0);
1395
1396 if( zCommit[0] == 'C' ){
1397 /* success, set result as number of lines processed */
1398 pResult = Tcl_GetObjResult(interp);
1399 Tcl_SetIntObj(pResult, lineno);
1400 rc = TCL_OK;
1401 }else{
1402 /* failure, append lineno where failed */
1403 sqlite3_snprintf(sizeof(zLineNum), zLineNum,"%d",lineno);
1404 Tcl_AppendResult(interp,", failed while processing line: ",zLineNum,0);
1405 rc = TCL_ERROR;
1406 }
1407 break;
1408 }
1409
1410 /*
1411 ** $db enable_load_extension BOOLEAN
1412 **
1413 ** Turn the extension loading feature on or off. It if off by
1414 ** default.
1415 */
1416 case DB_ENABLE_LOAD_EXTENSION: {
1417#ifndef SQLITE_OMIT_LOAD_EXTENSION
1418 int onoff;
1419 if( objc!=3 ){
1420 Tcl_WrongNumArgs(interp, 2, objv, "BOOLEAN");
1421 return TCL_ERROR;
1422 }
1423 if( Tcl_GetBooleanFromObj(interp, objv[2], &onoff) ){
1424 return TCL_ERROR;
1425 }
1426 sqlite3_enable_load_extension(pDb->db, onoff);
1427 break;
1428#else
1429 Tcl_AppendResult(interp, "extension loading is turned off at compile-time",
1430 0);
1431 return TCL_ERROR;
1432#endif
1433 }
1434
1435 /*
1436 ** $db errorcode
1437 **
1438 ** Return the numeric error code that was returned by the most recent
1439 ** call to sqlite3_exec().
1440 */
1441 case DB_ERRORCODE: {
1442 Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_errcode(pDb->db)));
1443 break;
1444 }
1445
1446 /*
1447 ** $db eval $sql ?array? ?{ ...code... }?
1448 ** $db onecolumn $sql
1449 **
1450 ** The SQL statement in $sql is evaluated. For each row, the values are
1451 ** placed in elements of the array named "array" and ...code... is executed.
1452 ** If "array" and "code" are omitted, then no callback is every invoked.
1453 ** If "array" is an empty string, then the values are placed in variables
1454 ** that have the same name as the fields extracted by the query.
1455 **
1456 ** The onecolumn method is the equivalent of:
1457 ** lindex [$db eval $sql] 0
1458 */
1459 case DB_ONECOLUMN:
1460 case DB_EVAL:
1461 case DB_EXISTS: {
1462 char const *zSql; /* Next SQL statement to execute */
1463 char const *zLeft; /* What is left after first stmt in zSql */
1464 sqlite3_stmt *pStmt; /* Compiled SQL statment */
1465 Tcl_Obj *pArray; /* Name of array into which results are written */
1466 Tcl_Obj *pScript; /* Script to run for each result set */
1467 Tcl_Obj **apParm; /* Parameters that need a Tcl_DecrRefCount() */
1468 int nParm; /* Number of entries used in apParm[] */
1469 Tcl_Obj *aParm[10]; /* Static space for apParm[] in the common case */
1470 Tcl_Obj *pRet; /* Value to be returned */
1471 SqlPreparedStmt *pPreStmt; /* Pointer to a prepared statement */
1472 int rc2;
1473
1474 if( choice==DB_EVAL ){
1475 if( objc<3 || objc>5 ){
1476 Tcl_WrongNumArgs(interp, 2, objv, "SQL ?ARRAY-NAME? ?SCRIPT?");
1477 return TCL_ERROR;
1478 }
1479 pRet = Tcl_NewObj();
1480 Tcl_IncrRefCount(pRet);
1481 }else{
1482 if( objc!=3 ){
1483 Tcl_WrongNumArgs(interp, 2, objv, "SQL");
1484 return TCL_ERROR;
1485 }
1486 if( choice==DB_EXISTS ){
1487 pRet = Tcl_NewBooleanObj(0);
1488 Tcl_IncrRefCount(pRet);
1489 }else{
1490 pRet = 0;
1491 }
1492 }
1493 if( objc==3 ){
1494 pArray = pScript = 0;
1495 }else if( objc==4 ){
1496 pArray = 0;
1497 pScript = objv[3];
1498 }else{
1499 pArray = objv[3];
1500 if( Tcl_GetString(pArray)[0]==0 ) pArray = 0;
1501 pScript = objv[4];
1502 }
1503
1504 Tcl_IncrRefCount(objv[2]);
1505 zSql = Tcl_GetStringFromObj(objv[2], 0);
1506 while( rc==TCL_OK && zSql[0] ){
1507 int i; /* Loop counter */
1508 int nVar; /* Number of bind parameters in the pStmt */
1509 int nCol; /* Number of columns in the result set */
1510 Tcl_Obj **apColName = 0; /* Array of column names */
1511 int len; /* String length of zSql */
1512
1513 /* Try to find a SQL statement that has already been compiled and
1514 ** which matches the next sequence of SQL.
1515 */
1516 pStmt = 0;
1517 pPreStmt = pDb->stmtList;
1518 len = strlen(zSql);
1519 if( pPreStmt && sqlite3_expired(pPreStmt->pStmt) ){
1520 flushStmtCache(pDb);
1521 pPreStmt = 0;
1522 }
1523 for(; pPreStmt; pPreStmt=pPreStmt->pNext){
1524 int n = pPreStmt->nSql;
1525 if( len>=n
1526 && memcmp(pPreStmt->zSql, zSql, n)==0
1527 && (zSql[n]==0 || zSql[n-1]==';')
1528 ){
1529 pStmt = pPreStmt->pStmt;
1530 zLeft = &zSql[pPreStmt->nSql];
1531
1532 /* When a prepared statement is found, unlink it from the
1533 ** cache list. It will later be added back to the beginning
1534 ** of the cache list in order to implement LRU replacement.
1535 */
1536 if( pPreStmt->pPrev ){
1537 pPreStmt->pPrev->pNext = pPreStmt->pNext;
1538 }else{
1539 pDb->stmtList = pPreStmt->pNext;
1540 }
1541 if( pPreStmt->pNext ){
1542 pPreStmt->pNext->pPrev = pPreStmt->pPrev;
1543 }else{
1544 pDb->stmtLast = pPreStmt->pPrev;
1545 }
1546 pDb->nStmt--;
1547 break;
1548 }
1549 }
1550
1551 /* If no prepared statement was found. Compile the SQL text
1552 */
1553 if( pStmt==0 ){
1554 if( SQLITE_OK!=sqlite3_prepare(pDb->db, zSql, -1, &pStmt, &zLeft) ){
1555 Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
1556 rc = TCL_ERROR;
1557 break;
1558 }
1559 if( pStmt==0 ){
1560 if( SQLITE_OK!=sqlite3_errcode(pDb->db) ){
1561 /* A compile-time error in the statement
1562 */
1563 Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
1564 rc = TCL_ERROR;
1565 break;
1566 }else{
1567 /* The statement was a no-op. Continue to the next statement
1568 ** in the SQL string.
1569 */
1570 zSql = zLeft;
1571 continue;
1572 }
1573 }
1574 assert( pPreStmt==0 );
1575 }
1576
1577 /* Bind values to parameters that begin with $ or :
1578 */
1579 nVar = sqlite3_bind_parameter_count(pStmt);
1580 nParm = 0;
1581 if( nVar>sizeof(aParm)/sizeof(aParm[0]) ){
1582 apParm = (Tcl_Obj**)Tcl_Alloc(nVar*sizeof(apParm[0]));
1583 }else{
1584 apParm = aParm;
1585 }
1586 for(i=1; i<=nVar; i++){
1587 const char *zVar = sqlite3_bind_parameter_name(pStmt, i);
1588 if( zVar!=0 && (zVar[0]=='$' || zVar[0]==':' || zVar[0]=='@') ){
1589 Tcl_Obj *pVar = Tcl_GetVar2Ex(interp, &zVar[1], 0, 0);
1590 if( pVar ){
1591 int n;
1592 u8 *data;
1593 char *zType = pVar->typePtr ? pVar->typePtr->name : "";
1594 char c = zType[0];
1595 if( zVar[0]=='@' ||
1596 (c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0) ){
1597 /* Load a BLOB type if the Tcl variable is a bytearray and
1598 ** it has no string representation or the host
1599 ** parameter name begins with "@". */
1600 data = Tcl_GetByteArrayFromObj(pVar, &n);
1601 sqlite3_bind_blob(pStmt, i, data, n, SQLITE_STATIC);
1602 Tcl_IncrRefCount(pVar);
1603 apParm[nParm++] = pVar;
1604 }else if( c=='b' && strcmp(zType,"boolean")==0 ){
1605 Tcl_GetIntFromObj(interp, pVar, &n);
1606 sqlite3_bind_int(pStmt, i, n);
1607 }else if( c=='d' && strcmp(zType,"double")==0 ){
1608 double r;
1609 Tcl_GetDoubleFromObj(interp, pVar, &r);
1610 sqlite3_bind_double(pStmt, i, r);
1611 }else if( (c=='w' && strcmp(zType,"wideInt")==0) ||
1612 (c=='i' && strcmp(zType,"int")==0) ){
1613 Tcl_WideInt v;
1614 Tcl_GetWideIntFromObj(interp, pVar, &v);
1615 sqlite3_bind_int64(pStmt, i, v);
1616 }else{
1617 data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n);
1618 sqlite3_bind_text(pStmt, i, (char *)data, n, SQLITE_STATIC);
1619 Tcl_IncrRefCount(pVar);
1620 apParm[nParm++] = pVar;
1621 }
1622 }else{
1623 sqlite3_bind_null( pStmt, i );
1624 }
1625 }
1626 }
1627
1628 /* Compute column names */
1629 nCol = sqlite3_column_count(pStmt);
1630 if( pScript ){
1631 apColName = (Tcl_Obj**)Tcl_Alloc( sizeof(Tcl_Obj*)*nCol );
1632 if( apColName==0 ) break;
1633 for(i=0; i<nCol; i++){
1634 apColName[i] = dbTextToObj(sqlite3_column_name(pStmt,i));
1635 Tcl_IncrRefCount(apColName[i]);
1636 }
1637 }
1638
1639 /* If results are being stored in an array variable, then create
1640 ** the array(*) entry for that array
1641 */
1642 if( pArray ){
1643 Tcl_Obj *pColList = Tcl_NewObj();
1644 Tcl_Obj *pStar = Tcl_NewStringObj("*", -1);
1645 Tcl_IncrRefCount(pColList);
1646 for(i=0; i<nCol; i++){
1647 Tcl_ListObjAppendElement(interp, pColList, apColName[i]);
1648 }
1649 Tcl_ObjSetVar2(interp, pArray, pStar, pColList,0);
1650 Tcl_DecrRefCount(pColList);
1651 }
1652
1653 /* Execute the SQL
1654 */
1655 while( rc==TCL_OK && pStmt && SQLITE_ROW==sqlite3_step(pStmt) ){
1656 for(i=0; i<nCol; i++){
1657 Tcl_Obj *pVal;
1658
1659 /* Set pVal to contain the i'th column of this row. */
1660 switch( sqlite3_column_type(pStmt, i) ){
1661 case SQLITE_BLOB: {
1662 int bytes = sqlite3_column_bytes(pStmt, i);
1663 pVal = Tcl_NewByteArrayObj(sqlite3_column_blob(pStmt, i), bytes);
1664 break;
1665 }
1666 case SQLITE_INTEGER: {
1667 sqlite_int64 v = sqlite3_column_int64(pStmt, i);
1668 if( v>=-2147483647 && v<=2147483647 ){
1669 pVal = Tcl_NewIntObj(v);
1670 }else{
1671 pVal = Tcl_NewWideIntObj(v);
1672 }
1673 break;
1674 }
1675 case SQLITE_FLOAT: {
1676 double r = sqlite3_column_double(pStmt, i);
1677 pVal = Tcl_NewDoubleObj(r);
1678 break;
1679 }
1680 case SQLITE_NULL: {
1681 pVal = dbTextToObj(pDb->zNull);
1682 break;
1683 }
1684 default: {
1685 pVal = dbTextToObj((char *)sqlite3_column_text(pStmt, i));
1686 break;
1687 }
1688 }
1689
1690 if( pScript ){
1691 if( pArray==0 ){
1692 Tcl_ObjSetVar2(interp, apColName[i], 0, pVal, 0);
1693 }else{
1694 Tcl_ObjSetVar2(interp, pArray, apColName[i], pVal, 0);
1695 }
1696 }else if( choice==DB_ONECOLUMN ){
1697 assert( pRet==0 );
1698 if( pRet==0 ){
1699 pRet = pVal;
1700 Tcl_IncrRefCount(pRet);
1701 }
1702 rc = TCL_BREAK;
1703 i = nCol;
1704 }else if( choice==DB_EXISTS ){
1705 Tcl_DecrRefCount(pRet);
1706 pRet = Tcl_NewBooleanObj(1);
1707 Tcl_IncrRefCount(pRet);
1708 rc = TCL_BREAK;
1709 i = nCol;
1710 }else{
1711 Tcl_ListObjAppendElement(interp, pRet, pVal);
1712 }
1713 }
1714
1715 if( pScript ){
1716 rc = Tcl_EvalObjEx(interp, pScript, 0);
1717 if( rc==TCL_CONTINUE ){
1718 rc = TCL_OK;
1719 }
1720 }
1721 }
1722 if( rc==TCL_BREAK ){
1723 rc = TCL_OK;
1724 }
1725
1726 /* Free the column name objects */
1727 if( pScript ){
1728 for(i=0; i<nCol; i++){
1729 Tcl_DecrRefCount(apColName[i]);
1730 }
1731 Tcl_Free((char*)apColName);
1732 }
1733
1734 /* Free the bound string and blob parameters */
1735 for(i=0; i<nParm; i++){
1736 Tcl_DecrRefCount(apParm[i]);
1737 }
1738 if( apParm!=aParm ){
1739 Tcl_Free((char*)apParm);
1740 }
1741
1742 /* Reset the statement. If the result code is SQLITE_SCHEMA, then
1743 ** flush the statement cache and try the statement again.
1744 */
1745 rc2 = sqlite3_reset(pStmt);
1746 if( SQLITE_SCHEMA==rc2 ){
1747 /* After a schema change, flush the cache and try to run the
1748 ** statement again
1749 */
1750 flushStmtCache( pDb );
1751 sqlite3_finalize(pStmt);
1752 if( pPreStmt ) Tcl_Free((char*)pPreStmt);
1753 continue;
1754 }else if( SQLITE_OK!=rc2 ){
1755 /* If a run-time error occurs, report the error and stop reading
1756 ** the SQL
1757 */
1758 Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
1759 sqlite3_finalize(pStmt);
1760 rc = TCL_ERROR;
1761 if( pPreStmt ) Tcl_Free((char*)pPreStmt);
1762 break;
1763 }else if( pDb->maxStmt<=0 ){
1764 /* If the cache is turned off, deallocated the statement */
1765 if( pPreStmt ) Tcl_Free((char*)pPreStmt);
1766 sqlite3_finalize(pStmt);
1767 }else{
1768 /* Everything worked and the cache is operational.
1769 ** Create a new SqlPreparedStmt structure if we need one.
1770 ** (If we already have one we can just reuse it.)
1771 */
1772 if( pPreStmt==0 ){
1773 len = zLeft - zSql;
1774 pPreStmt = (SqlPreparedStmt*)Tcl_Alloc( sizeof(*pPreStmt) + len );
1775 if( pPreStmt==0 ) return TCL_ERROR;
1776 pPreStmt->pStmt = pStmt;
1777 pPreStmt->nSql = len;
1778 memcpy(pPreStmt->zSql, zSql, len);
1779 pPreStmt->zSql[len] = 0;
1780 }
1781
1782 /* Add the prepared statement to the beginning of the cache list
1783 */
1784 pPreStmt->pNext = pDb->stmtList;
1785 pPreStmt->pPrev = 0;
1786 if( pDb->stmtList ){
1787 pDb->stmtList->pPrev = pPreStmt;
1788 }
1789 pDb->stmtList = pPreStmt;
1790 if( pDb->stmtLast==0 ){
1791 assert( pDb->nStmt==0 );
1792 pDb->stmtLast = pPreStmt;
1793 }else{
1794 assert( pDb->nStmt>0 );
1795 }
1796 pDb->nStmt++;
1797
1798 /* If we have too many statement in cache, remove the surplus from the
1799 ** end of the cache list.
1800 */
1801 while( pDb->nStmt>pDb->maxStmt ){
1802 sqlite3_finalize(pDb->stmtLast->pStmt);
1803 pDb->stmtLast = pDb->stmtLast->pPrev;
1804 Tcl_Free((char*)pDb->stmtLast->pNext);
1805 pDb->stmtLast->pNext = 0;
1806 pDb->nStmt--;
1807 }
1808 }
1809
1810 /* Proceed to the next statement */
1811 zSql = zLeft;
1812 }
1813 Tcl_DecrRefCount(objv[2]);
1814
1815 if( pRet ){
1816 if( rc==TCL_OK ){
1817 Tcl_SetObjResult(interp, pRet);
1818 }
1819 Tcl_DecrRefCount(pRet);
1820 }else if( rc==TCL_OK ){
1821 Tcl_ResetResult(interp);
1822 }
1823 break;
1824 }
1825
1826 /*
1827 ** $db function NAME SCRIPT
1828 **
1829 ** Create a new SQL function called NAME. Whenever that function is
1830 ** called, invoke SCRIPT to evaluate the function.
1831 */
1832 case DB_FUNCTION: {
1833 SqlFunc *pFunc;
1834 Tcl_Obj *pScript;
1835 char *zName;
1836 if( objc!=4 ){
1837 Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT");
1838 return TCL_ERROR;
1839 }
1840 zName = Tcl_GetStringFromObj(objv[2], 0);
1841 pScript = objv[3];
1842 pFunc = findSqlFunc(pDb, zName);
1843 if( pFunc==0 ) return TCL_ERROR;
1844 if( pFunc->pScript ){
1845 Tcl_DecrRefCount(pFunc->pScript);
1846 }
1847 pFunc->pScript = pScript;
1848 Tcl_IncrRefCount(pScript);
1849 pFunc->useEvalObjv = safeToUseEvalObjv(interp, pScript);
1850 rc = sqlite3_create_function(pDb->db, zName, -1, SQLITE_UTF8,
1851 pFunc, tclSqlFunc, 0, 0);
1852 if( rc!=SQLITE_OK ){
1853 rc = TCL_ERROR;
1854 Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
1855 }else{
1856 /* Must flush any cached statements */
1857 flushStmtCache( pDb );
1858 }
1859 break;
1860 }
1861
1862 /*
1863 ** $db incrblob ?-readonly? ?DB? TABLE COLUMN ROWID
1864 */
1865 case DB_INCRBLOB: {
1866#ifdef SQLITE_OMIT_INCRBLOB
1867 Tcl_AppendResult(interp, "incrblob not available in this build", 0);
1868 return TCL_ERROR;
1869#else
1870 int isReadonly = 0;
1871 const char *zDb = "main";
1872 const char *zTable;
1873 const char *zColumn;
1874 sqlite_int64 iRow;
1875
1876 /* Check for the -readonly option */
1877 if( objc>3 && strcmp(Tcl_GetString(objv[2]), "-readonly")==0 ){
1878 isReadonly = 1;
1879 }
1880
1881 if( objc!=(5+isReadonly) && objc!=(6+isReadonly) ){
1882 Tcl_WrongNumArgs(interp, 2, objv, "?-readonly? ?DB? TABLE COLUMN ROWID");
1883 return TCL_ERROR;
1884 }
1885
1886 if( objc==(6+isReadonly) ){
1887 zDb = Tcl_GetString(objv[2]);
1888 }
1889 zTable = Tcl_GetString(objv[objc-3]);
1890 zColumn = Tcl_GetString(objv[objc-2]);
1891 rc = Tcl_GetWideIntFromObj(interp, objv[objc-1], &iRow);
1892
1893 if( rc==TCL_OK ){
1894 rc = createIncrblobChannel(
1895 interp, pDb, zDb, zTable, zColumn, iRow, isReadonly
1896 );
1897 }
1898#endif
1899 break;
1900 }
1901
1902 /*
1903 ** $db interrupt
1904 **
1905 ** Interrupt the execution of the inner-most SQL interpreter. This
1906 ** causes the SQL statement to return an error of SQLITE_INTERRUPT.
1907 */
1908 case DB_INTERRUPT: {
1909 sqlite3_interrupt(pDb->db);
1910 break;
1911 }
1912
1913 /*
1914 ** $db nullvalue ?STRING?
1915 **
1916 ** Change text used when a NULL comes back from the database. If ?STRING?
1917 ** is not present, then the current string used for NULL is returned.
1918 ** If STRING is present, then STRING is returned.
1919 **
1920 */
1921 case DB_NULLVALUE: {
1922 if( objc!=2 && objc!=3 ){
1923 Tcl_WrongNumArgs(interp, 2, objv, "NULLVALUE");
1924 return TCL_ERROR;
1925 }
1926 if( objc==3 ){
1927 int len;
1928 char *zNull = Tcl_GetStringFromObj(objv[2], &len);
1929 if( pDb->zNull ){
1930 Tcl_Free(pDb->zNull);
1931 }
1932 if( zNull && len>0 ){
1933 pDb->zNull = Tcl_Alloc( len + 1 );
1934 strncpy(pDb->zNull, zNull, len);
1935 pDb->zNull[len] = '\0';
1936 }else{
1937 pDb->zNull = 0;
1938 }
1939 }
1940 Tcl_SetObjResult(interp, dbTextToObj(pDb->zNull));
1941 break;
1942 }
1943
1944 /*
1945 ** $db last_insert_rowid
1946 **
1947 ** Return an integer which is the ROWID for the most recent insert.
1948 */
1949 case DB_LAST_INSERT_ROWID: {
1950 Tcl_Obj *pResult;
1951 Tcl_WideInt rowid;
1952 if( objc!=2 ){
1953 Tcl_WrongNumArgs(interp, 2, objv, "");
1954 return TCL_ERROR;
1955 }
1956 rowid = sqlite3_last_insert_rowid(pDb->db);
1957 pResult = Tcl_GetObjResult(interp);
1958 Tcl_SetWideIntObj(pResult, rowid);
1959 break;
1960 }
1961
1962 /*
1963 ** The DB_ONECOLUMN method is implemented together with DB_EVAL.
1964 */
1965
1966 /* $db progress ?N CALLBACK?
1967 **
1968 ** Invoke the given callback every N virtual machine opcodes while executing
1969 ** queries.
1970 */
1971 case DB_PROGRESS: {
1972 if( objc==2 ){
1973 if( pDb->zProgress ){
1974 Tcl_AppendResult(interp, pDb->zProgress, 0);
1975 }
1976 }else if( objc==4 ){
1977 char *zProgress;
1978 int len;
1979 int N;
1980 if( TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &N) ){
1981 return TCL_ERROR;
1982 };
1983 if( pDb->zProgress ){
1984 Tcl_Free(pDb->zProgress);
1985 }
1986 zProgress = Tcl_GetStringFromObj(objv[3], &len);
1987 if( zProgress && len>0 ){
1988 pDb->zProgress = Tcl_Alloc( len + 1 );
1989 memcpy(pDb->zProgress, zProgress, len+1);
1990 }else{
1991 pDb->zProgress = 0;
1992 }
1993#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
1994 if( pDb->zProgress ){
1995 pDb->interp = interp;
1996 sqlite3_progress_handler(pDb->db, N, DbProgressHandler, pDb);
1997 }else{
1998 sqlite3_progress_handler(pDb->db, 0, 0, 0);
1999 }
2000#endif
2001 }else{
2002 Tcl_WrongNumArgs(interp, 2, objv, "N CALLBACK");
2003 return TCL_ERROR;
2004 }
2005 break;
2006 }
2007
2008 /* $db profile ?CALLBACK?
2009 **
2010 ** Make arrangements to invoke the CALLBACK routine after each SQL statement
2011 ** that has run. The text of the SQL and the amount of elapse time are
2012 ** appended to CALLBACK before the script is run.
2013 */
2014 case DB_PROFILE: {
2015 if( objc>3 ){
2016 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
2017 return TCL_ERROR;
2018 }else if( objc==2 ){
2019 if( pDb->zProfile ){
2020 Tcl_AppendResult(interp, pDb->zProfile, 0);
2021 }
2022 }else{
2023 char *zProfile;
2024 int len;
2025 if( pDb->zProfile ){
2026 Tcl_Free(pDb->zProfile);
2027 }
2028 zProfile = Tcl_GetStringFromObj(objv[2], &len);
2029 if( zProfile && len>0 ){
2030 pDb->zProfile = Tcl_Alloc( len + 1 );
2031 memcpy(pDb->zProfile, zProfile, len+1);
2032 }else{
2033 pDb->zProfile = 0;
2034 }
2035#ifndef SQLITE_OMIT_TRACE
2036 if( pDb->zProfile ){
2037 pDb->interp = interp;
2038 sqlite3_profile(pDb->db, DbProfileHandler, pDb);
2039 }else{
2040 sqlite3_profile(pDb->db, 0, 0);
2041 }
2042#endif
2043 }
2044 break;
2045 }
2046
2047 /*
2048 ** $db rekey KEY
2049 **
2050 ** Change the encryption key on the currently open database.
2051 */
2052 case DB_REKEY: {
2053 int nKey;
2054 void *pKey;
2055 if( objc!=3 ){
2056 Tcl_WrongNumArgs(interp, 2, objv, "KEY");
2057 return TCL_ERROR;
2058 }
2059 pKey = Tcl_GetByteArrayFromObj(objv[2], &nKey);
2060#ifdef SQLITE_HAS_CODEC
2061 rc = sqlite3_rekey(pDb->db, pKey, nKey);
2062 if( rc ){
2063 Tcl_AppendResult(interp, sqlite3ErrStr(rc), 0);
2064 rc = TCL_ERROR;
2065 }
2066#endif
2067 break;
2068 }
2069
2070 /*
2071 ** $db timeout MILLESECONDS
2072 **
2073 ** Delay for the number of milliseconds specified when a file is locked.
2074 */
2075 case DB_TIMEOUT: {
2076 int ms;
2077 if( objc!=3 ){
2078 Tcl_WrongNumArgs(interp, 2, objv, "MILLISECONDS");
2079 return TCL_ERROR;
2080 }
2081 if( Tcl_GetIntFromObj(interp, objv[2], &ms) ) return TCL_ERROR;
2082 sqlite3_busy_timeout(pDb->db, ms);
2083 break;
2084 }
2085
2086 /*
2087 ** $db total_changes
2088 **
2089 ** Return the number of rows that were modified, inserted, or deleted
2090 ** since the database handle was created.
2091 */
2092 case DB_TOTAL_CHANGES: {
2093 Tcl_Obj *pResult;
2094 if( objc!=2 ){
2095 Tcl_WrongNumArgs(interp, 2, objv, "");
2096 return TCL_ERROR;
2097 }
2098 pResult = Tcl_GetObjResult(interp);
2099 Tcl_SetIntObj(pResult, sqlite3_total_changes(pDb->db));
2100 break;
2101 }
2102
2103 /* $db trace ?CALLBACK?
2104 **
2105 ** Make arrangements to invoke the CALLBACK routine for each SQL statement
2106 ** that is executed. The text of the SQL is appended to CALLBACK before
2107 ** it is executed.
2108 */
2109 case DB_TRACE: {
2110 if( objc>3 ){
2111 Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
2112 return TCL_ERROR;
2113 }else if( objc==2 ){
2114 if( pDb->zTrace ){
2115 Tcl_AppendResult(interp, pDb->zTrace, 0);
2116 }
2117 }else{
2118 char *zTrace;
2119 int len;
2120 if( pDb->zTrace ){
2121 Tcl_Free(pDb->zTrace);
2122 }
2123 zTrace = Tcl_GetStringFromObj(objv[2], &len);
2124 if( zTrace && len>0 ){
2125 pDb->zTrace = Tcl_Alloc( len + 1 );
2126 memcpy(pDb->zTrace, zTrace, len+1);
2127 }else{
2128 pDb->zTrace = 0;
2129 }
2130#ifndef SQLITE_OMIT_TRACE
2131 if( pDb->zTrace ){
2132 pDb->interp = interp;
2133 sqlite3_trace(pDb->db, DbTraceHandler, pDb);
2134 }else{
2135 sqlite3_trace(pDb->db, 0, 0);
2136 }
2137#endif
2138 }
2139 break;
2140 }
2141
2142 /* $db transaction [-deferred|-immediate|-exclusive] SCRIPT
2143 **
2144 ** Start a new transaction (if we are not already in the midst of a
2145 ** transaction) and execute the TCL script SCRIPT. After SCRIPT
2146 ** completes, either commit the transaction or roll it back if SCRIPT
2147 ** throws an exception. Or if no new transation was started, do nothing.
2148 ** pass the exception on up the stack.
2149 **
2150 ** This command was inspired by Dave Thomas's talk on Ruby at the
2151 ** 2005 O'Reilly Open Source Convention (OSCON).
2152 */
2153 case DB_TRANSACTION: {
2154 int inTrans;
2155 Tcl_Obj *pScript;
2156 const char *zBegin = "BEGIN";
2157 if( objc!=3 && objc!=4 ){
2158 Tcl_WrongNumArgs(interp, 2, objv, "[TYPE] SCRIPT");
2159 return TCL_ERROR;
2160 }
2161 if( objc==3 ){
2162 pScript = objv[2];
2163 } else {
2164 static const char *TTYPE_strs[] = {
2165 "deferred", "exclusive", "immediate", 0
2166 };
2167 enum TTYPE_enum {
2168 TTYPE_DEFERRED, TTYPE_EXCLUSIVE, TTYPE_IMMEDIATE
2169 };
2170 int ttype;
2171 if( Tcl_GetIndexFromObj(interp, objv[2], TTYPE_strs, "transaction type",
2172 0, &ttype) ){
2173 return TCL_ERROR;
2174 }
2175 switch( (enum TTYPE_enum)ttype ){
2176 case TTYPE_DEFERRED: /* no-op */; break;
2177 case TTYPE_EXCLUSIVE: zBegin = "BEGIN EXCLUSIVE"; break;
2178 case TTYPE_IMMEDIATE: zBegin = "BEGIN IMMEDIATE"; break;
2179 }
2180 pScript = objv[3];
2181 }
2182 inTrans = !sqlite3_get_autocommit(pDb->db);
2183 if( !inTrans ){
2184 (void)sqlite3_exec(pDb->db, zBegin, 0, 0, 0);
2185 }
2186 rc = Tcl_EvalObjEx(interp, pScript, 0);
2187 if( !inTrans ){
2188 const char *zEnd;
2189 if( rc==TCL_ERROR ){
2190 zEnd = "ROLLBACK";
2191 } else {
2192 zEnd = "COMMIT";
2193 }
2194 if( sqlite3_exec(pDb->db, zEnd, 0, 0, 0) ){
2195 sqlite3_exec(pDb->db, "ROLLBACK", 0, 0, 0);
2196 }
2197 }
2198 break;
2199 }
2200
2201 /*
2202 ** $db update_hook ?script?
2203 ** $db rollback_hook ?script?
2204 */
2205 case DB_UPDATE_HOOK:
2206 case DB_ROLLBACK_HOOK: {
2207
2208 /* set ppHook to point at pUpdateHook or pRollbackHook, depending on
2209 ** whether [$db update_hook] or [$db rollback_hook] was invoked.
2210 */
2211 Tcl_Obj **ppHook;
2212 if( choice==DB_UPDATE_HOOK ){
2213 ppHook = &pDb->pUpdateHook;
2214 }else{
2215 ppHook = &pDb->pRollbackHook;
2216 }
2217
2218 if( objc!=2 && objc!=3 ){
2219 Tcl_WrongNumArgs(interp, 2, objv, "?SCRIPT?");
2220 return TCL_ERROR;
2221 }
2222 if( *ppHook ){
2223 Tcl_SetObjResult(interp, *ppHook);
2224 if( objc==3 ){
2225 Tcl_DecrRefCount(*ppHook);
2226 *ppHook = 0;
2227 }
2228 }
2229 if( objc==3 ){
2230 assert( !(*ppHook) );
2231 if( Tcl_GetCharLength(objv[2])>0 ){
2232 *ppHook = objv[2];
2233 Tcl_IncrRefCount(*ppHook);
2234 }
2235 }
2236
2237 sqlite3_update_hook(pDb->db, (pDb->pUpdateHook?DbUpdateHandler:0), pDb);
2238 sqlite3_rollback_hook(pDb->db,(pDb->pRollbackHook?DbRollbackHandler:0),pDb);
2239
2240 break;
2241 }
2242
2243 /* $db version
2244 **
2245 ** Return the version string for this database.
2246 */
2247 case DB_VERSION: {
2248 Tcl_SetResult(interp, (char *)sqlite3_libversion(), TCL_STATIC);
2249 break;
2250 }
2251
2252
2253 } /* End of the SWITCH statement */
2254 return rc;
2255}
2256
2257/*
2258** sqlite3 DBNAME FILENAME ?-vfs VFSNAME? ?-key KEY? ?-readonly BOOLEAN?
2259** ?-create BOOLEAN?
2260**
2261** This is the main Tcl command. When the "sqlite" Tcl command is
2262** invoked, this routine runs to process that command.
2263**
2264** The first argument, DBNAME, is an arbitrary name for a new
2265** database connection. This command creates a new command named
2266** DBNAME that is used to control that connection. The database
2267** connection is deleted when the DBNAME command is deleted.
2268**
2269** The second argument is the name of the database file.
2270**
2271*/
2272static int DbMain(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
2273 SqliteDb *p;
2274 void *pKey = 0;
2275 int nKey = 0;
2276 const char *zArg;
2277 char *zErrMsg;
2278 int i;
2279 const char *zFile;
2280 const char *zVfs = 0;
2281 int flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
2282 Tcl_DString translatedFilename;
2283 if( objc==2 ){
2284 zArg = Tcl_GetStringFromObj(objv[1], 0);
2285 if( strcmp(zArg,"-version")==0 ){
2286 Tcl_AppendResult(interp,sqlite3_version,0);
2287 return TCL_OK;
2288 }
2289 if( strcmp(zArg,"-has-codec")==0 ){
2290#ifdef SQLITE_HAS_CODEC
2291 Tcl_AppendResult(interp,"1",0);
2292#else
2293 Tcl_AppendResult(interp,"0",0);
2294#endif
2295 return TCL_OK;
2296 }
2297 }
2298 for(i=3; i+1<objc; i+=2){
2299 zArg = Tcl_GetString(objv[i]);
2300 if( strcmp(zArg,"-key")==0 ){
2301 pKey = Tcl_GetByteArrayFromObj(objv[i+1], &nKey);
2302 }else if( strcmp(zArg, "-vfs")==0 ){
2303 i++;
2304 zVfs = Tcl_GetString(objv[i]);
2305 }else if( strcmp(zArg, "-readonly")==0 ){
2306 int b;
2307 if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR;
2308 if( b ){
2309 flags &= ~(SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE);
2310 flags |= SQLITE_OPEN_READONLY;
2311 }else{
2312 flags &= ~SQLITE_OPEN_READONLY;
2313 flags |= SQLITE_OPEN_READWRITE;
2314 }
2315 }else if( strcmp(zArg, "-create")==0 ){
2316 int b;
2317 if( Tcl_GetBooleanFromObj(interp, objv[i+1], &b) ) return TCL_ERROR;
2318 if( b && (flags & SQLITE_OPEN_READONLY)==0 ){
2319 flags |= SQLITE_OPEN_CREATE;
2320 }else{
2321 flags &= ~SQLITE_OPEN_CREATE;
2322 }
2323 }else{
2324 Tcl_AppendResult(interp, "unknown option: ", zArg, (char*)0);
2325 return TCL_ERROR;
2326 }
2327 }
2328 if( objc<3 || (objc&1)!=1 ){
2329 Tcl_WrongNumArgs(interp, 1, objv,
2330 "HANDLE FILENAME ?-vfs VFSNAME? ?-readonly BOOLEAN? ?-create BOOLEAN?"
2331#ifdef SQLITE_HAS_CODEC
2332 " ?-key CODECKEY?"
2333#endif
2334 );
2335 return TCL_ERROR;
2336 }
2337 zErrMsg = 0;
2338 p = (SqliteDb*)Tcl_Alloc( sizeof(*p) );
2339 if( p==0 ){
2340 Tcl_SetResult(interp, "malloc failed", TCL_STATIC);
2341 return TCL_ERROR;
2342 }
2343 memset(p, 0, sizeof(*p));
2344 zFile = Tcl_GetStringFromObj(objv[2], 0);
2345 zFile = Tcl_TranslateFileName(interp, zFile, &translatedFilename);
2346 sqlite3_open_v2(zFile, &p->db, flags, zVfs);
2347 Tcl_DStringFree(&translatedFilename);
2348 if( SQLITE_OK!=sqlite3_errcode(p->db) ){
2349 zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(p->db));
2350 sqlite3_close(p->db);
2351 p->db = 0;
2352 }
2353#ifdef SQLITE_TEST
2354 if( p->db ){
2355 extern int Md5_Register(sqlite3*);
2356 if( Md5_Register(p->db)==SQLITE_NOMEM ){
2357 zErrMsg = sqlite3_mprintf("%s", sqlite3_errmsg(p->db));
2358 sqlite3_close(p->db);
2359 p->db = 0;
2360 }
2361 }
2362#endif
2363#ifdef SQLITE_HAS_CODEC
2364 if( p->db ){
2365 sqlite3_key(p->db, pKey, nKey);
2366 }
2367#endif
2368 if( p->db==0 ){
2369 Tcl_SetResult(interp, zErrMsg, TCL_VOLATILE);
2370 Tcl_Free((char*)p);
2371 sqlite3_free(zErrMsg);
2372 return TCL_ERROR;
2373 }
2374 p->maxStmt = NUM_PREPARED_STMTS;
2375 p->interp = interp;
2376 zArg = Tcl_GetStringFromObj(objv[1], 0);
2377 Tcl_CreateObjCommand(interp, zArg, DbObjCmd, (char*)p, DbDeleteCmd);
2378 return TCL_OK;
2379}
2380
2381/*
2382** Provide a dummy Tcl_InitStubs if we are using this as a static
2383** library.
2384*/
2385#ifndef USE_TCL_STUBS
2386# undef Tcl_InitStubs
2387# define Tcl_InitStubs(a,b,c)
2388#endif
2389
2390/*
2391** Make sure we have a PACKAGE_VERSION macro defined. This will be
2392** defined automatically by the TEA makefile. But other makefiles
2393** do not define it.
2394*/
2395#ifndef PACKAGE_VERSION
2396# define PACKAGE_VERSION SQLITE_VERSION
2397#endif
2398
2399/*
2400** Initialize this module.
2401**
2402** This Tcl module contains only a single new Tcl command named "sqlite".
2403** (Hence there is no namespace. There is no point in using a namespace
2404** if the extension only supplies one new name!) The "sqlite" command is
2405** used to open a new SQLite database. See the DbMain() routine above
2406** for additional information.
2407*/
2408EXTERN int Sqlite3_Init(Tcl_Interp *interp){
2409 Tcl_InitStubs(interp, "8.4", 0);
2410 Tcl_CreateObjCommand(interp, "sqlite3", (Tcl_ObjCmdProc*)DbMain, 0, 0);
2411 Tcl_PkgProvide(interp, "sqlite3", PACKAGE_VERSION);
2412 Tcl_CreateObjCommand(interp, "sqlite", (Tcl_ObjCmdProc*)DbMain, 0, 0);
2413 Tcl_PkgProvide(interp, "sqlite", PACKAGE_VERSION);
2414 return TCL_OK;
2415}
2416EXTERN int Tclsqlite3_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
2417EXTERN int Sqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
2418EXTERN int Tclsqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
2419
2420#ifndef SQLITE_3_SUFFIX_ONLY
2421EXTERN int Sqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
2422EXTERN int Tclsqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
2423EXTERN int Sqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
2424EXTERN int Tclsqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
2425#endif
2426
2427#ifdef TCLSH
2428/*****************************************************************************
2429** The code that follows is used to build standalone TCL interpreters
2430** that are statically linked with SQLite.
2431*/
2432
2433/*
2434** If the macro TCLSH is one, then put in code this for the
2435** "main" routine that will initialize Tcl and take input from
2436** standard input, or if a file is named on the command line
2437** the TCL interpreter reads and evaluates that file.
2438*/
2439#if TCLSH==1
2440static char zMainloop[] =
2441 "set line {}\n"
2442 "while {![eof stdin]} {\n"
2443 "if {$line!=\"\"} {\n"
2444 "puts -nonewline \"> \"\n"
2445 "} else {\n"
2446 "puts -nonewline \"% \"\n"
2447 "}\n"
2448 "flush stdout\n"
2449 "append line [gets stdin]\n"
2450 "if {[info complete $line]} {\n"
2451 "if {[catch {uplevel #0 $line} result]} {\n"
2452 "puts stderr \"Error: $result\"\n"
2453 "} elseif {$result!=\"\"} {\n"
2454 "puts $result\n"
2455 "}\n"
2456 "set line {}\n"
2457 "} else {\n"
2458 "append line \\n\n"
2459 "}\n"
2460 "}\n"
2461;
2462#endif
2463
2464/*
2465** If the macro TCLSH is two, then get the main loop code out of
2466** the separate file "spaceanal_tcl.h".
2467*/
2468#if TCLSH==2
2469static char zMainloop[] =
2470#include "spaceanal_tcl.h"
2471;
2472#endif
2473
2474#define TCLSH_MAIN main /* Needed to fake out mktclapp */
2475int TCLSH_MAIN(int argc, char **argv){
2476 Tcl_Interp *interp;
2477 Tcl_FindExecutable(argv[0]);
2478 interp = Tcl_CreateInterp();
2479 Sqlite3_Init(interp);
2480#ifdef SQLITE_TEST
2481 {
2482 extern int Md5_Init(Tcl_Interp*);
2483 extern int Sqliteconfig_Init(Tcl_Interp*);
2484 extern int Sqlitetest1_Init(Tcl_Interp*);
2485 extern int Sqlitetest2_Init(Tcl_Interp*);
2486 extern int Sqlitetest3_Init(Tcl_Interp*);
2487 extern int Sqlitetest4_Init(Tcl_Interp*);
2488 extern int Sqlitetest5_Init(Tcl_Interp*);
2489 extern int Sqlitetest6_Init(Tcl_Interp*);
2490 extern int Sqlitetest7_Init(Tcl_Interp*);
2491 extern int Sqlitetest8_Init(Tcl_Interp*);
2492 extern int Sqlitetest9_Init(Tcl_Interp*);
2493 extern int Sqlitetestasync_Init(Tcl_Interp*);
2494 extern int Sqlitetest_autoext_Init(Tcl_Interp*);
2495 extern int Sqlitetest_hexio_Init(Tcl_Interp*);
2496 extern int Sqlitetest_malloc_Init(Tcl_Interp*);
2497 extern int Sqlitetestschema_Init(Tcl_Interp*);
2498 extern int Sqlitetestsse_Init(Tcl_Interp*);
2499 extern int Sqlitetesttclvar_Init(Tcl_Interp*);
2500 extern int SqlitetestThread_Init(Tcl_Interp*);
2501 extern int SqlitetestOnefile_Init();
2502
2503 Md5_Init(interp);
2504 Sqliteconfig_Init(interp);
2505 Sqlitetest1_Init(interp);
2506 Sqlitetest2_Init(interp);
2507 Sqlitetest3_Init(interp);
2508 Sqlitetest4_Init(interp);
2509 Sqlitetest5_Init(interp);
2510 Sqlitetest6_Init(interp);
2511 Sqlitetest7_Init(interp);
2512 Sqlitetest8_Init(interp);
2513 Sqlitetest9_Init(interp);
2514 Sqlitetestasync_Init(interp);
2515 Sqlitetest_autoext_Init(interp);
2516 Sqlitetest_hexio_Init(interp);
2517 Sqlitetest_malloc_Init(interp);
2518 Sqlitetestschema_Init(interp);
2519 Sqlitetesttclvar_Init(interp);
2520 SqlitetestThread_Init(interp);
2521 SqlitetestOnefile_Init(interp);
2522
2523#ifdef SQLITE_SSE
2524 Sqlitetestsse_Init(interp);
2525#endif
2526 }
2527#endif
2528 if( argc>=2 || TCLSH==2 ){
2529 int i;
2530 char zArgc[32];
2531 sqlite3_snprintf(sizeof(zArgc), zArgc, "%d", argc-(3-TCLSH));
2532 Tcl_SetVar(interp,"argc", zArgc, TCL_GLOBAL_ONLY);
2533 Tcl_SetVar(interp,"argv0",argv[1],TCL_GLOBAL_ONLY);
2534 Tcl_SetVar(interp,"argv", "", TCL_GLOBAL_ONLY);
2535 for(i=3-TCLSH; i<argc; i++){
2536 Tcl_SetVar(interp, "argv", argv[i],
2537 TCL_GLOBAL_ONLY | TCL_LIST_ELEMENT | TCL_APPEND_VALUE);
2538 }
2539 if( TCLSH==1 && Tcl_EvalFile(interp, argv[1])!=TCL_OK ){
2540 const char *zInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
2541 if( zInfo==0 ) zInfo = interp->result;
2542 fprintf(stderr,"%s: %s\n", *argv, zInfo);
2543 return 1;
2544 }
2545 }
2546 if( argc<=1 || TCLSH==2 ){
2547 Tcl_GlobalEval(interp, zMainloop);
2548 }
2549 return 0;
2550}
2551#endif /* TCLSH */
generated by cgit v1.1 at 2024-07-05 00:33:13 +0000