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Overview
| Comment: | Some elements of the new malloc() failure handling. Not all cases work properly yet. Also, library is not threadsafe if malloc() fails right now. (CVS 2800) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
e1606658f1b4530e3001db4779b5669c |
| User & Date: | danielk1977 2005-12-06 12:52:59 |
Context
|
2005-12-06
| ||
| 12:57 | Add test file for new malloc() failure handling. (CVS 2801) check-in: 0b82f962 user: danielk1977 tags: trunk | |
| 12:52 | Some elements of the new malloc() failure handling. Not all cases work properly yet. Also, library is not threadsafe if malloc() fails right now. (CVS 2800) check-in: e1606658 user: danielk1977 tags: trunk | |
|
2005-12-05
| ||
| 22:22 | Update mailing list hyperlink on the support page. (CVS 2799) check-in: 41a7aeee user: drh tags: trunk | |
Changes
Changes to src/alter.c.
8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains C code routines that used to generate VDBE code 13 13 ** that implements the ALTER TABLE command. 14 14 ** 15 -** $Id: alter.c,v 1.9 2005/10/20 07:28:18 drh Exp $ 15 +** $Id: alter.c,v 1.10 2005/12/06 12:52:59 danielk1977 Exp $ 16 16 */ 17 17 #include "sqliteInt.h" 18 18 #include <ctype.h> 19 19 20 20 /* 21 21 ** The code in this file only exists if we are not omitting the 22 22 ** ALTER TABLE logic from the build. ................................................................................ 254 254 char *zName = 0; /* NULL-terminated version of pName */ 255 255 sqlite3 *db = pParse->db; /* Database connection */ 256 256 Vdbe *v; 257 257 #ifndef SQLITE_OMIT_TRIGGER 258 258 char *zWhere = 0; /* Where clause to locate temp triggers */ 259 259 #endif 260 260 261 - if( sqlite3_malloc_failed ) goto exit_rename_table; 261 + if( sqlite3Tsd()->mallocFailed ) goto exit_rename_table; 262 262 assert( pSrc->nSrc==1 ); 263 263 264 264 pTab = sqlite3LocateTable(pParse, pSrc->a[0].zName, pSrc->a[0].zDatabase); 265 265 if( !pTab ) goto exit_rename_table; 266 266 iDb = pTab->iDb; 267 267 zDb = db->aDb[iDb].zName; 268 268 ................................................................................ 500 500 int iDb; 501 501 int i; 502 502 int nAlloc; 503 503 504 504 505 505 /* Look up the table being altered. */ 506 506 assert( pParse->pNewTable==0 ); 507 - if( sqlite3_malloc_failed ) goto exit_begin_add_column; 507 + if( sqlite3Tsd()->mallocFailed ) goto exit_begin_add_column; 508 508 pTab = sqlite3LocateTable(pParse, pSrc->a[0].zName, pSrc->a[0].zDatabase); 509 509 if( !pTab ) goto exit_begin_add_column; 510 510 511 511 /* Make sure this is not an attempt to ALTER a view. */ 512 512 if( pTab->pSelect ){ 513 513 sqlite3ErrorMsg(pParse, "Cannot add a column to a view"); 514 514 goto exit_begin_add_column;
Changes to src/attach.c.
7 7 ** May you do good and not evil. 8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains code used to implement the ATTACH and DETACH commands. 13 13 ** 14 -** $Id: attach.c,v 1.34 2005/08/20 03:03:04 drh Exp $ 14 +** $Id: attach.c,v 1.35 2005/12/06 12:52:59 danielk1977 Exp $ 15 15 */ 16 16 #include "sqliteInt.h" 17 17 18 18 /* 19 19 ** This routine is called by the parser to process an ATTACH statement: 20 20 ** 21 21 ** ATTACH DATABASE filename AS dbname ................................................................................ 146 146 db->aDb[i].pBt = 0; 147 147 } 148 148 sqlite3ResetInternalSchema(db, 0); 149 149 assert( pParse->nErr>0 ); /* Always set by sqlite3ReadSchema() */ 150 150 if( pParse->rc==SQLITE_OK ){ 151 151 pParse->rc = SQLITE_ERROR; 152 152 } 153 + db->nDb = i; 153 154 } 154 155 155 156 attach_end: 156 157 sqliteFree(zFile); 157 158 sqliteFree(zName); 158 159 } 159 160
Changes to src/build.c.
18 18 ** CREATE INDEX 19 19 ** DROP INDEX 20 20 ** creating ID lists 21 21 ** BEGIN TRANSACTION 22 22 ** COMMIT 23 23 ** ROLLBACK 24 24 ** 25 -** $Id: build.c,v 1.355 2005/11/14 22:29:05 drh Exp $ 25 +** $Id: build.c,v 1.356 2005/12/06 12:52:59 danielk1977 Exp $ 26 26 */ 27 27 #include "sqliteInt.h" 28 28 #include <ctype.h> 29 29 30 30 /* 31 31 ** This routine is called when a new SQL statement is beginning to 32 32 ** be parsed. Initialize the pParse structure as needed. ................................................................................ 46 46 ** Note that if an error occurred, it might be the case that 47 47 ** no VDBE code was generated. 48 48 */ 49 49 void sqlite3FinishCoding(Parse *pParse){ 50 50 sqlite3 *db; 51 51 Vdbe *v; 52 52 53 - if( sqlite3_malloc_failed ) return; 53 + if( sqlite3Tsd()->mallocFailed ) return; 54 54 if( pParse->nested ) return; 55 55 if( !pParse->pVdbe ){ 56 56 if( pParse->rc==SQLITE_OK && pParse->nErr ){ 57 57 pParse->rc = SQLITE_ERROR; 58 58 } 59 59 return; 60 60 } ................................................................................ 1292 1292 Token *pCons, /* The ',' token after the last column defn. */ 1293 1293 Token *pEnd, /* The final ')' token in the CREATE TABLE */ 1294 1294 Select *pSelect /* Select from a "CREATE ... AS SELECT" */ 1295 1295 ){ 1296 1296 Table *p; 1297 1297 sqlite3 *db = pParse->db; 1298 1298 1299 - if( (pEnd==0 && pSelect==0) || pParse->nErr || sqlite3_malloc_failed ) return; 1299 + if( (pEnd==0 && pSelect==0) || pParse->nErr || sqlite3Tsd()->mallocFailed ) { 1300 + return; 1301 + } 1300 1302 p = pParse->pNewTable; 1301 1303 if( p==0 ) return; 1302 1304 1303 1305 assert( !db->init.busy || !pSelect ); 1304 1306 1305 1307 #ifndef SQLITE_OMIT_CHECK 1306 1308 /* Resolve names in all CHECK constraint expressions. ................................................................................ 1518 1520 /* Make a copy of the entire SELECT statement that defines the view. 1519 1521 ** This will force all the Expr.token.z values to be dynamically 1520 1522 ** allocated rather than point to the input string - which means that 1521 1523 ** they will persist after the current sqlite3_exec() call returns. 1522 1524 */ 1523 1525 p->pSelect = sqlite3SelectDup(pSelect); 1524 1526 sqlite3SelectDelete(pSelect); 1527 + if( sqlite3Tsd()->mallocFailed ){ 1528 + return; 1529 + } 1525 1530 if( !pParse->db->init.busy ){ 1526 1531 sqlite3ViewGetColumnNames(pParse, p); 1527 1532 } 1528 1533 1529 1534 /* Locate the end of the CREATE VIEW statement. Make sEnd point to 1530 1535 ** the end. 1531 1536 */ ................................................................................ 1588 1593 ** "*" elements in the results set of the view and will assign cursors 1589 1594 ** to the elements of the FROM clause. But we do not want these changes 1590 1595 ** to be permanent. So the computation is done on a copy of the SELECT 1591 1596 ** statement that defines the view. 1592 1597 */ 1593 1598 assert( pTable->pSelect ); 1594 1599 pSel = sqlite3SelectDup(pTable->pSelect); 1595 - n = pParse->nTab; 1596 - sqlite3SrcListAssignCursors(pParse, pSel->pSrc); 1597 - pTable->nCol = -1; 1598 - pSelTab = sqlite3ResultSetOfSelect(pParse, 0, pSel); 1599 - pParse->nTab = n; 1600 - if( pSelTab ){ 1601 - assert( pTable->aCol==0 ); 1602 - pTable->nCol = pSelTab->nCol; 1603 - pTable->aCol = pSelTab->aCol; 1604 - pSelTab->nCol = 0; 1605 - pSelTab->aCol = 0; 1606 - sqlite3DeleteTable(0, pSelTab); 1607 - DbSetProperty(pParse->db, pTable->iDb, DB_UnresetViews); 1608 - }else{ 1609 - pTable->nCol = 0; 1600 + if( pSel ){ 1601 + n = pParse->nTab; 1602 + sqlite3SrcListAssignCursors(pParse, pSel->pSrc); 1603 + pTable->nCol = -1; 1604 + pSelTab = sqlite3ResultSetOfSelect(pParse, 0, pSel); 1605 + pParse->nTab = n; 1606 + if( pSelTab ){ 1607 + assert( pTable->aCol==0 ); 1608 + pTable->nCol = pSelTab->nCol; 1609 + pTable->aCol = pSelTab->aCol; 1610 + pSelTab->nCol = 0; 1611 + pSelTab->aCol = 0; 1612 + sqlite3DeleteTable(0, pSelTab); 1613 + DbSetProperty(pParse->db, pTable->iDb, DB_UnresetViews); 1614 + }else{ 1615 + pTable->nCol = 0; 1616 + nErr++; 1617 + } 1618 + sqlite3SelectDelete(pSel); 1619 + } else { 1610 1620 nErr++; 1611 1621 } 1612 - sqlite3SelectDelete(pSel); 1613 1622 return nErr; 1614 1623 } 1615 1624 #endif /* SQLITE_OMIT_VIEW */ 1616 1625 1617 1626 #ifndef SQLITE_OMIT_VIEW 1618 1627 /* 1619 1628 ** Clear the column names from every VIEW in database idx. ................................................................................ 1745 1754 */ 1746 1755 void sqlite3DropTable(Parse *pParse, SrcList *pName, int isView){ 1747 1756 Table *pTab; 1748 1757 Vdbe *v; 1749 1758 sqlite3 *db = pParse->db; 1750 1759 int iDb; 1751 1760 1752 - if( pParse->nErr || sqlite3_malloc_failed ) goto exit_drop_table; 1761 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) goto exit_drop_table; 1753 1762 assert( pName->nSrc==1 ); 1754 1763 pTab = sqlite3LocateTable(pParse, pName->a[0].zName, pName->a[0].zDatabase); 1755 1764 1756 1765 if( pTab==0 ) goto exit_drop_table; 1757 1766 iDb = pTab->iDb; 1758 1767 assert( iDb>=0 && iDb<db->nDb ); 1759 1768 #ifndef SQLITE_OMIT_AUTHORIZATION ................................................................................ 2094 2103 Token nullId; /* Fake token for an empty ID list */ 2095 2104 DbFixer sFix; /* For assigning database names to pTable */ 2096 2105 sqlite3 *db = pParse->db; 2097 2106 2098 2107 int iDb; /* Index of the database that is being written */ 2099 2108 Token *pName = 0; /* Unqualified name of the index to create */ 2100 2109 2101 - if( pParse->nErr || sqlite3_malloc_failed ) goto exit_create_index; 2110 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) goto exit_create_index; 2102 2111 2103 2112 /* 2104 2113 ** Find the table that is to be indexed. Return early if not found. 2105 2114 */ 2106 2115 if( pTblName!=0 ){ 2107 2116 2108 2117 /* Use the two-part index name to determine the database ................................................................................ 2222 2231 } 2223 2232 2224 2233 /* 2225 2234 ** Allocate the index structure. 2226 2235 */ 2227 2236 pIndex = sqliteMalloc( sizeof(Index) + strlen(zName) + 1 + sizeof(int) + 2228 2237 (sizeof(int)*2 + sizeof(CollSeq*))*pList->nExpr ); 2229 - if( sqlite3_malloc_failed ) goto exit_create_index; 2238 + if( sqlite3Tsd()->mallocFailed ) goto exit_create_index; 2230 2239 pIndex->aiColumn = (int*)&pIndex->keyInfo.aColl[pList->nExpr]; 2231 2240 pIndex->aiRowEst = (unsigned*)&pIndex->aiColumn[pList->nExpr]; 2232 2241 pIndex->zName = (char*)&pIndex->aiRowEst[pList->nExpr+1]; 2233 2242 strcpy(pIndex->zName, zName); 2234 2243 pIndex->pTable = pTab; 2235 2244 pIndex->nColumn = pList->nExpr; 2236 2245 pIndex->onError = onError; ................................................................................ 2468 2477 ** implements the DROP INDEX statement. 2469 2478 */ 2470 2479 void sqlite3DropIndex(Parse *pParse, SrcList *pName){ 2471 2480 Index *pIndex; 2472 2481 Vdbe *v; 2473 2482 sqlite3 *db = pParse->db; 2474 2483 2475 - if( pParse->nErr || sqlite3_malloc_failed ){ 2484 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ){ 2476 2485 goto exit_drop_index; 2477 2486 } 2478 2487 assert( pName->nSrc==1 ); 2479 2488 if( SQLITE_OK!=sqlite3ReadSchema(pParse) ){ 2480 2489 goto exit_drop_index; 2481 2490 } 2482 2491 pIndex = sqlite3FindIndex(db, pName->a[0].zName, pName->a[0].zDatabase); ................................................................................ 2675 2684 2676 2685 /* 2677 2686 ** Assign cursors to all tables in a SrcList 2678 2687 */ 2679 2688 void sqlite3SrcListAssignCursors(Parse *pParse, SrcList *pList){ 2680 2689 int i; 2681 2690 struct SrcList_item *pItem; 2682 - for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){ 2683 - if( pItem->iCursor>=0 ) break; 2684 - pItem->iCursor = pParse->nTab++; 2685 - if( pItem->pSelect ){ 2686 - sqlite3SrcListAssignCursors(pParse, pItem->pSelect->pSrc); 2691 + assert(pList || sqlite3Tsd()->mallocFailed); 2692 + if( pList ){ 2693 + for(i=0, pItem=pList->a; i<pList->nSrc; i++, pItem++){ 2694 + if( pItem->iCursor>=0 ) break; 2695 + pItem->iCursor = pParse->nTab++; 2696 + if( pItem->pSelect ){ 2697 + sqlite3SrcListAssignCursors(pParse, pItem->pSelect->pSrc); 2698 + } 2687 2699 } 2688 2700 } 2689 2701 } 2690 2702 2691 2703 /* 2692 2704 ** Add an alias to the last identifier on the given identifier list. 2693 2705 */ ................................................................................ 2721 2733 */ 2722 2734 void sqlite3BeginTransaction(Parse *pParse, int type){ 2723 2735 sqlite3 *db; 2724 2736 Vdbe *v; 2725 2737 int i; 2726 2738 2727 2739 if( pParse==0 || (db=pParse->db)==0 || db->aDb[0].pBt==0 ) return; 2728 - if( pParse->nErr || sqlite3_malloc_failed ) return; 2740 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) return; 2729 2741 if( sqlite3AuthCheck(pParse, SQLITE_TRANSACTION, "BEGIN", 0, 0) ) return; 2730 2742 2731 2743 v = sqlite3GetVdbe(pParse); 2732 2744 if( !v ) return; 2733 2745 if( type!=TK_DEFERRED ){ 2734 2746 for(i=0; i<db->nDb; i++){ 2735 2747 sqlite3VdbeAddOp(v, OP_Transaction, i, (type==TK_EXCLUSIVE)+1); ................................................................................ 2742 2754 ** Commit a transaction 2743 2755 */ 2744 2756 void sqlite3CommitTransaction(Parse *pParse){ 2745 2757 sqlite3 *db; 2746 2758 Vdbe *v; 2747 2759 2748 2760 if( pParse==0 || (db=pParse->db)==0 || db->aDb[0].pBt==0 ) return; 2749 - if( pParse->nErr || sqlite3_malloc_failed ) return; 2761 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) return; 2750 2762 if( sqlite3AuthCheck(pParse, SQLITE_TRANSACTION, "COMMIT", 0, 0) ) return; 2751 2763 2752 2764 v = sqlite3GetVdbe(pParse); 2753 2765 if( v ){ 2754 2766 sqlite3VdbeAddOp(v, OP_AutoCommit, 1, 0); 2755 2767 } 2756 2768 } ................................................................................ 2759 2771 ** Rollback a transaction 2760 2772 */ 2761 2773 void sqlite3RollbackTransaction(Parse *pParse){ 2762 2774 sqlite3 *db; 2763 2775 Vdbe *v; 2764 2776 2765 2777 if( pParse==0 || (db=pParse->db)==0 || db->aDb[0].pBt==0 ) return; 2766 - if( pParse->nErr || sqlite3_malloc_failed ) return; 2778 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) return; 2767 2779 if( sqlite3AuthCheck(pParse, SQLITE_TRANSACTION, "ROLLBACK", 0, 0) ) return; 2768 2780 2769 2781 v = sqlite3GetVdbe(pParse); 2770 2782 if( v ){ 2771 2783 sqlite3VdbeAddOp(v, OP_AutoCommit, 1, 1); 2772 2784 } 2773 2785 }
Changes to src/callback.c.
9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** 13 13 ** This file contains functions used to access the internal hash tables 14 14 ** of user defined functions and collation sequences. 15 15 ** 16 -** $Id: callback.c,v 1.4 2005/10/20 07:28:18 drh Exp $ 16 +** $Id: callback.c,v 1.5 2005/12/06 12:52:59 danielk1977 Exp $ 17 17 */ 18 18 19 19 #include "sqliteInt.h" 20 20 21 21 /* 22 22 ** Invoke the 'collation needed' callback to request a collation sequence 23 23 ** in the database text encoding of name zName, length nName. ................................................................................ 171 171 pColl[0].zName[nName] = 0; 172 172 pDel = sqlite3HashInsert(&db->aCollSeq, pColl[0].zName, nName, pColl); 173 173 174 174 /* If a malloc() failure occured in sqlite3HashInsert(), it will 175 175 ** return the pColl pointer to be deleted (because it wasn't added 176 176 ** to the hash table). 177 177 */ 178 - assert( !pDel || (sqlite3_malloc_failed && pDel==pColl) ); 178 + assert( !pDel || (sqlite3Tsd()->mallocFailed && pDel==pColl) ); 179 179 sqliteFree(pDel); 180 180 } 181 181 } 182 182 return pColl; 183 183 } 184 184 185 185 /*
Changes to src/delete.c.
8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains C code routines that are called by the parser 13 13 ** in order to generate code for DELETE FROM statements. 14 14 ** 15 -** $Id: delete.c,v 1.111 2005/09/20 17:42:23 drh Exp $ 15 +** $Id: delete.c,v 1.112 2005/12/06 12:52:59 danielk1977 Exp $ 16 16 */ 17 17 #include "sqliteInt.h" 18 18 19 19 /* 20 20 ** Look up every table that is named in pSrc. If any table is not found, 21 21 ** add an error message to pParse->zErrMsg and return NULL. If all tables 22 22 ** are found, return a pointer to the last table. ................................................................................ 98 98 99 99 #ifndef SQLITE_OMIT_TRIGGER 100 100 int isView; /* True if attempting to delete from a view */ 101 101 int triggers_exist = 0; /* True if any triggers exist */ 102 102 #endif 103 103 104 104 sContext.pParse = 0; 105 - if( pParse->nErr || sqlite3_malloc_failed ){ 105 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ){ 106 106 goto delete_from_cleanup; 107 107 } 108 108 db = pParse->db; 109 109 assert( pTabList->nSrc==1 ); 110 110 111 111 /* Locate the table which we want to delete. This table has to be 112 112 ** put in an SrcList structure because some of the subroutines we
Changes to src/expr.c.
8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains routines used for analyzing expressions and 13 13 ** for generating VDBE code that evaluates expressions in SQLite. 14 14 ** 15 -** $Id: expr.c,v 1.240 2005/11/29 03:13:22 drh Exp $ 15 +** $Id: expr.c,v 1.241 2005/12/06 12:52:59 danielk1977 Exp $ 16 16 */ 17 17 #include "sqliteInt.h" 18 18 #include <ctype.h> 19 19 20 20 /* 21 21 ** Return the 'affinity' of the expression pExpr if any. 22 22 ** ................................................................................ 259 259 /* 260 260 ** Set the Expr.span field of the given expression to span all 261 261 ** text between the two given tokens. 262 262 */ 263 263 void sqlite3ExprSpan(Expr *pExpr, Token *pLeft, Token *pRight){ 264 264 assert( pRight!=0 ); 265 265 assert( pLeft!=0 ); 266 - if( !sqlite3_malloc_failed && pRight->z && pLeft->z ){ 266 + if( !sqlite3Tsd()->mallocFailed && pRight->z && pLeft->z ){ 267 267 assert( pLeft->dyn==0 || pLeft->z[pLeft->n]==0 ); 268 268 if( pLeft->dyn==0 && pRight->dyn==0 ){ 269 269 pExpr->span.z = pLeft->z; 270 270 pExpr->span.n = pRight->n + (pRight->z - pLeft->z); 271 271 }else{ 272 272 pExpr->span.z = 0; 273 273 } ................................................................................ 354 354 if( i>=pParse->nVarExpr ){ 355 355 pExpr->iTable = ++pParse->nVar; 356 356 if( pParse->nVarExpr>=pParse->nVarExprAlloc-1 ){ 357 357 pParse->nVarExprAlloc += pParse->nVarExprAlloc + 10; 358 358 sqlite3ReallocOrFree((void**)&pParse->apVarExpr, 359 359 pParse->nVarExprAlloc*sizeof(pParse->apVarExpr[0]) ); 360 360 } 361 - if( !sqlite3_malloc_failed ){ 361 + if( !sqlite3Tsd()->mallocFailed ){ 362 362 assert( pParse->apVarExpr!=0 ); 363 363 pParse->apVarExpr[pParse->nVarExpr++] = pExpr; 364 364 } 365 365 } 366 366 } 367 367 } 368 368 ................................................................................ 458 458 if( pOldExpr->span.z!=0 && pNewExpr ){ 459 459 /* Always make a copy of the span for top-level expressions in the 460 460 ** expression list. The logic in SELECT processing that determines 461 461 ** the names of columns in the result set needs this information */ 462 462 sqlite3TokenCopy(&pNewExpr->span, &pOldExpr->span); 463 463 } 464 464 assert( pNewExpr==0 || pNewExpr->span.z!=0 465 - || pOldExpr->span.z==0 || sqlite3_malloc_failed ); 465 + || pOldExpr->span.z==0 || sqlite3Tsd()->mallocFailed ); 466 466 pItem->zName = sqliteStrDup(pOldItem->zName); 467 467 pItem->sortOrder = pOldItem->sortOrder; 468 468 pItem->isAgg = pOldItem->isAgg; 469 469 pItem->done = 0; 470 470 } 471 471 return pNew; 472 472 } ................................................................................ 827 827 struct SrcList_item *pMatch = 0; /* The matching pSrcList item */ 828 828 NameContext *pTopNC = pNC; /* First namecontext in the list */ 829 829 830 830 assert( pColumnToken && pColumnToken->z ); /* The Z in X.Y.Z cannot be NULL */ 831 831 zDb = sqlite3NameFromToken(pDbToken); 832 832 zTab = sqlite3NameFromToken(pTableToken); 833 833 zCol = sqlite3NameFromToken(pColumnToken); 834 - if( sqlite3_malloc_failed ){ 834 + if( sqlite3Tsd()->mallocFailed ){ 835 835 goto lookupname_end; 836 836 } 837 837 838 838 pExpr->iTable = -1; 839 839 while( pNC && cnt==0 ){ 840 840 ExprList *pEList; 841 841 SrcList *pSrcList = pNC->pSrcList; ................................................................................ 1301 1301 ** If all of the above are false, then we can run this code just once 1302 1302 ** save the results, and reuse the same result on subsequent invocations. 1303 1303 */ 1304 1304 if( !ExprHasAnyProperty(pExpr, EP_VarSelect) && !pParse->trigStack ){ 1305 1305 int mem = pParse->nMem++; 1306 1306 sqlite3VdbeAddOp(v, OP_MemLoad, mem, 0); 1307 1307 testAddr = sqlite3VdbeAddOp(v, OP_If, 0, 0); 1308 - assert( testAddr>0 || sqlite3_malloc_failed ); 1308 + assert( testAddr>0 || sqlite3Tsd()->mallocFailed ); 1309 1309 sqlite3VdbeAddOp(v, OP_MemInt, 1, mem); 1310 1310 } 1311 1311 1312 1312 switch( pExpr->op ){ 1313 1313 case TK_IN: { 1314 1314 char affinity; 1315 1315 KeyInfo keyInfo;
Changes to src/insert.c.
8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains C code routines that are called by the parser 13 13 ** to handle INSERT statements in SQLite. 14 14 ** 15 -** $Id: insert.c,v 1.149 2005/11/24 13:15:33 drh Exp $ 15 +** $Id: insert.c,v 1.150 2005/12/06 12:52:59 danielk1977 Exp $ 16 16 */ 17 17 #include "sqliteInt.h" 18 18 19 19 /* 20 20 ** Set P3 of the most recently inserted opcode to a column affinity 21 21 ** string for index pIdx. A column affinity string has one character 22 22 ** for each column in the table, according to the affinity of the column: ................................................................................ 220 220 int triggers_exist = 0; /* True if there are FOR EACH ROW triggers */ 221 221 #endif 222 222 223 223 #ifndef SQLITE_OMIT_AUTOINCREMENT 224 224 int counterRowid; /* Memory cell holding rowid of autoinc counter */ 225 225 #endif 226 226 227 - if( pParse->nErr || sqlite3_malloc_failed ) goto insert_cleanup; 227 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) goto insert_cleanup; 228 228 db = pParse->db; 229 229 230 230 /* Locate the table into which we will be inserting new information. 231 231 */ 232 232 assert( pTabList->nSrc==1 ); 233 233 zTab = pTabList->a[0].zName; 234 234 if( zTab==0 ) goto insert_cleanup; ................................................................................ 334 334 int rc, iInitCode; 335 335 iInitCode = sqlite3VdbeAddOp(v, OP_Goto, 0, 0); 336 336 iSelectLoop = sqlite3VdbeCurrentAddr(v); 337 337 iInsertBlock = sqlite3VdbeMakeLabel(v); 338 338 339 339 /* Resolve the expressions in the SELECT statement and execute it. */ 340 340 rc = sqlite3Select(pParse, pSelect, SRT_Subroutine, iInsertBlock,0,0,0,0); 341 - if( rc || pParse->nErr || sqlite3_malloc_failed ) goto insert_cleanup; 341 + if( rc || pParse->nErr || sqlite3Tsd()->mallocFailed ) goto insert_cleanup; 342 342 343 343 iCleanup = sqlite3VdbeMakeLabel(v); 344 344 sqlite3VdbeAddOp(v, OP_Goto, 0, iCleanup); 345 345 assert( pSelect->pEList ); 346 346 nColumn = pSelect->pEList->nExpr; 347 347 348 348 /* Set useTempTable to TRUE if the result of the SELECT statement
Changes to src/legacy.c.
10 10 ** 11 11 ************************************************************************* 12 12 ** Main file for the SQLite library. The routines in this file 13 13 ** implement the programmer interface to the library. Routines in 14 14 ** other files are for internal use by SQLite and should not be 15 15 ** accessed by users of the library. 16 16 ** 17 -** $Id: legacy.c,v 1.7 2004/09/06 17:34:13 drh Exp $ 17 +** $Id: legacy.c,v 1.8 2005/12/06 12:52:59 danielk1977 Exp $ 18 18 */ 19 19 20 20 #include "sqliteInt.h" 21 21 #include "os.h" 22 22 #include <ctype.h> 23 23 24 24 /* ................................................................................ 118 118 azCols = 0; 119 119 } 120 120 121 121 exec_out: 122 122 if( pStmt ) sqlite3_finalize(pStmt); 123 123 if( azCols ) sqliteFree(azCols); 124 124 125 - if( sqlite3_malloc_failed ){ 125 + if( sqlite3Tsd()->mallocFailed ){ 126 126 rc = SQLITE_NOMEM; 127 127 } 128 128 if( rc!=SQLITE_OK && rc==sqlite3_errcode(db) && pzErrMsg ){ 129 129 *pzErrMsg = malloc(1+strlen(sqlite3_errmsg(db))); 130 130 if( *pzErrMsg ){ 131 131 strcpy(*pzErrMsg, sqlite3_errmsg(db)); 132 132 } 133 133 }else if( pzErrMsg ){ 134 134 *pzErrMsg = 0; 135 135 } 136 136 137 137 return rc; 138 138 }
Changes to src/main.c.
10 10 ** 11 11 ************************************************************************* 12 12 ** Main file for the SQLite library. The routines in this file 13 13 ** implement the programmer interface to the library. Routines in 14 14 ** other files are for internal use by SQLite and should not be 15 15 ** accessed by users of the library. 16 16 ** 17 -** $Id: main.c,v 1.304 2005/11/30 03:20:31 drh Exp $ 17 +** $Id: main.c,v 1.305 2005/12/06 12:52:59 danielk1977 Exp $ 18 18 */ 19 19 #include "sqliteInt.h" 20 20 #include "os.h" 21 21 #include <ctype.h> 22 22 23 23 /* 24 24 ** The following constant value is used by the SQLITE_BIGENDIAN and ................................................................................ 631 631 632 632 /* 633 633 ** Return UTF-8 encoded English language explanation of the most recent 634 634 ** error. 635 635 */ 636 636 const char *sqlite3_errmsg(sqlite3 *db){ 637 637 const char *z; 638 - if( sqlite3_malloc_failed ){ 638 + if( sqlite3Tsd()->mallocFailed ){ 639 639 return sqlite3ErrStr(SQLITE_NOMEM); 640 640 } 641 641 if( sqlite3SafetyCheck(db) || db->errCode==SQLITE_MISUSE ){ 642 642 return sqlite3ErrStr(SQLITE_MISUSE); 643 643 } 644 644 z = sqlite3_value_text(db->pErr); 645 645 if( z==0 ){ ................................................................................ 670 670 0, 'c', 0, 'a', 0, 'l', 0, 'l', 0, 'e', 0, 'd', 0, ' ', 671 671 0, 'o', 0, 'u', 0, 't', 0, ' ', 672 672 0, 'o', 0, 'f', 0, ' ', 673 673 0, 's', 0, 'e', 0, 'q', 0, 'u', 0, 'e', 0, 'n', 0, 'c', 0, 'e', 0, 0, 0 674 674 }; 675 675 676 676 const void *z; 677 - if( sqlite3_malloc_failed ){ 677 + if( sqlite3Tsd()->mallocFailed ){ 678 678 return (void *)(&outOfMemBe[SQLITE_UTF16NATIVE==SQLITE_UTF16LE?1:0]); 679 679 } 680 680 if( sqlite3SafetyCheck(db) || db->errCode==SQLITE_MISUSE ){ 681 681 return (void *)(&misuseBe[SQLITE_UTF16NATIVE==SQLITE_UTF16LE?1:0]); 682 682 } 683 683 z = sqlite3_value_text16(db->pErr); 684 684 if( z==0 ){ ................................................................................ 690 690 } 691 691 #endif /* SQLITE_OMIT_UTF16 */ 692 692 693 693 /* 694 694 ** Return the most recent error code generated by an SQLite routine. 695 695 */ 696 696 int sqlite3_errcode(sqlite3 *db){ 697 - if( sqlite3_malloc_failed ){ 697 + if( sqlite3Tsd()->mallocFailed ){ 698 698 return SQLITE_NOMEM; 699 699 } 700 700 if( sqlite3SafetyCheck(db) ){ 701 701 return SQLITE_MISUSE; 702 702 } 703 703 return db->errCode; 704 704 } ................................................................................ 738 738 /* Add the default collation sequence BINARY. BINARY works for both UTF-8 739 739 ** and UTF-16, so add a version for each to avoid any unnecessary 740 740 ** conversions. The only error that can occur here is a malloc() failure. 741 741 */ 742 742 if( sqlite3_create_collation(db, "BINARY", SQLITE_UTF8, 0,binCollFunc) || 743 743 sqlite3_create_collation(db, "BINARY", SQLITE_UTF16, 0,binCollFunc) || 744 744 (db->pDfltColl = sqlite3FindCollSeq(db, db->enc, "BINARY", 6, 0))==0 ){ 745 - rc = db->errCode; 746 - assert( rc!=SQLITE_OK ); 745 + assert(rc!=SQLITE_OK || sqlite3Tsd()->mallocFailed); 747 746 db->magic = SQLITE_MAGIC_CLOSED; 748 747 goto opendb_out; 749 748 } 750 749 751 750 /* Also add a UTF-8 case-insensitive collation sequence. */ 752 751 sqlite3_create_collation(db, "NOCASE", SQLITE_UTF8, 0, nocaseCollatingFunc); 753 752 ................................................................................ 782 781 ** is accessed. 783 782 */ 784 783 sqlite3RegisterBuiltinFunctions(db); 785 784 sqlite3Error(db, SQLITE_OK, 0); 786 785 db->magic = SQLITE_MAGIC_OPEN; 787 786 788 787 opendb_out: 789 - if( sqlite3_errcode(db)==SQLITE_OK && sqlite3_malloc_failed ){ 788 + if( sqlite3_errcode(db)==SQLITE_OK && sqlite3Tsd()->mallocFailed ){ 790 789 sqlite3Error(db, SQLITE_NOMEM, 0); 791 790 } 792 791 *ppDb = db; 793 792 #ifndef SQLITE_OMIT_GLOBALRECOVER 794 793 if( db ){ 795 794 sqlite3Os.xEnterMutex(); 796 795 db->pNext = pDbList; ................................................................................ 1006 1005 ** within SQLite. 1007 1006 ** 1008 1007 ** This function is *not* threadsafe. Calling this from within a threaded 1009 1008 ** application when threads other than the caller have used SQLite is 1010 1009 ** dangerous and will almost certainly result in malfunctions. 1011 1010 */ 1012 1011 int sqlite3_global_recover(){ 1012 +#if 0 1013 1013 int rc = SQLITE_OK; 1014 1014 1015 - if( sqlite3_malloc_failed ){ 1015 + if( sqlite3Tsd()->mallocFailed ){ 1016 1016 sqlite3 *db; 1017 1017 int i; 1018 - sqlite3_malloc_failed = 0; 1018 + sqlite3Tsd()->mallocFailed = 0; 1019 1019 for(db=pDbList; db; db=db->pNext ){ 1020 1020 sqlite3ExpirePreparedStatements(db); 1021 1021 for(i=0; i<db->nDb; i++){ 1022 1022 Btree *pBt = db->aDb[i].pBt; 1023 1023 if( pBt && (rc=sqlite3BtreeReset(pBt))!=0 ){ 1024 1024 goto recover_out; 1025 1025 } ................................................................................ 1026 1026 } 1027 1027 db->autoCommit = 1; 1028 1028 } 1029 1029 } 1030 1030 1031 1031 recover_out: 1032 1032 if( rc!=SQLITE_OK ){ 1033 - sqlite3_malloc_failed = 1; 1033 + sqlite3Tsd()->mallocFailed = 1; 1034 1034 } 1035 1035 return rc; 1036 +#endif 1037 + return SQLITE_OK; 1036 1038 } 1037 1039 #endif 1038 1040 1039 1041 /* 1040 1042 ** Test to see whether or not the database connection is in autocommit 1041 1043 ** mode. Return TRUE if it is and FALSE if not. Autocommit mode is on 1042 1044 ** by default. Autocommit is disabled by a BEGIN statement and reenabled
Changes to src/os_unix.c.
685 685 sqlite3Os.xLeaveMutex(); 686 686 if( rc ){ 687 687 close(f.h); 688 688 return SQLITE_NOMEM; 689 689 } 690 690 f.locktype = 0; 691 691 TRACE3("OPEN-RO %-3d %s\n", f.h, zFilename); 692 + 692 693 return allocateUnixFile(&f, pId); 693 694 } 694 695 695 696 /* 696 697 ** Attempt to open a file descriptor for the directory that contains a 697 698 ** file. This file descriptor can be used to fsync() the directory 698 699 ** in order to make sure the creation of a new file is actually written
Changes to src/pager.c.
14 14 ** The pager is used to access a database disk file. It implements 15 15 ** atomic commit and rollback through the use of a journal file that 16 16 ** is separate from the database file. The pager also implements file 17 17 ** locking to prevent two processes from writing the same database 18 18 ** file simultaneously, or one process from reading the database while 19 19 ** another is writing. 20 20 ** 21 -** @(#) $Id: pager.c,v 1.222 2005/11/30 03:20:31 drh Exp $ 21 +** @(#) $Id: pager.c,v 1.223 2005/12/06 12:52:59 danielk1977 Exp $ 22 22 */ 23 23 #ifndef SQLITE_OMIT_DISKIO 24 24 #include "sqliteInt.h" 25 25 #include "os.h" 26 26 #include "pager.h" 27 27 #include <assert.h> 28 28 #include <string.h> ................................................................................ 1594 1594 int readOnly = 0; 1595 1595 int useJournal = (flags & PAGER_OMIT_JOURNAL)==0; 1596 1596 int noReadlock = (flags & PAGER_NO_READLOCK)!=0; 1597 1597 char zTemp[SQLITE_TEMPNAME_SIZE]; 1598 1598 1599 1599 *ppPager = 0; 1600 1600 memset(&fd, 0, sizeof(fd)); 1601 - if( sqlite3_malloc_failed ){ 1601 + if( sqlite3Tsd()->mallocFailed ){ 1602 1602 return SQLITE_NOMEM; 1603 1603 } 1604 1604 if( zFilename && zFilename[0] ){ 1605 1605 #ifndef SQLITE_OMIT_MEMORYDB 1606 1606 if( strcmp(zFilename,":memory:")==0 ){ 1607 1607 memDb = 1; 1608 1608 zFullPathname = sqliteStrDup(""); ................................................................................ 2409 2409 TEST_INCR(pPager->nMiss); 2410 2410 if( pPager->nPage<pPager->mxPage || pPager->pFirst==0 || MEMDB ){ 2411 2411 /* Create a new page */ 2412 2412 pPg = sqliteMallocRaw( sizeof(*pPg) + pPager->pageSize 2413 2413 + sizeof(u32) + pPager->nExtra 2414 2414 + MEMDB*sizeof(PgHistory) ); 2415 2415 if( pPg==0 ){ 2416 - pPager->errMask |= PAGER_ERR_MEM; 2416 + // pPager->errMask |= PAGER_ERR_MEM; 2417 2417 return SQLITE_NOMEM; 2418 2418 } 2419 2419 memset(pPg, 0, sizeof(*pPg)); 2420 2420 if( MEMDB ){ 2421 2421 memset(PGHDR_TO_HIST(pPg, pPager), 0, sizeof(PgHistory)); 2422 2422 } 2423 2423 pPg->pPager = pPager; ................................................................................ 2688 2688 pPager->origDbSize = pPager->dbSize; 2689 2689 2690 2690 rc = writeJournalHdr(pPager); 2691 2691 2692 2692 if( pPager->stmtAutoopen && rc==SQLITE_OK ){ 2693 2693 rc = sqlite3pager_stmt_begin(pPager); 2694 2694 } 2695 - if( rc!=SQLITE_OK ){ 2695 + if( rc!=SQLITE_OK && rc!=SQLITE_NOMEM ){ 2696 2696 rc = pager_unwritelock(pPager); 2697 2697 if( rc==SQLITE_OK ){ 2698 2698 rc = SQLITE_FULL; 2699 2699 } 2700 2700 } 2701 2701 return rc; 2702 2702 2703 2703 failed_to_open_journal: 2704 2704 sqliteFree(pPager->aInJournal); 2705 2705 pPager->aInJournal = 0; 2706 - sqlite3OsUnlock(pPager->fd, NO_LOCK); 2707 - pPager->state = PAGER_UNLOCK; 2706 + if( rc==SQLITE_NOMEM ){ 2707 + /* If this was a malloc() failure, then we will not be closing the pager 2708 + ** file. So delete any journal file we may have just created. Otherwise, 2709 + ** the system will get confused, we have a read-lock on the file and a 2710 + ** mysterious journal has appeared in the filesystem. 2711 + */ 2712 + sqlite3Os.xDelete(pPager->zJournal); 2713 + }else{ 2714 + sqlite3OsUnlock(pPager->fd, NO_LOCK); 2715 + pPager->state = PAGER_UNLOCK; 2716 + } 2708 2717 return rc; 2709 2718 } 2710 2719 2711 2720 /* 2712 2721 ** Acquire a write-lock on the database. The lock is removed when 2713 2722 ** the any of the following happen: 2714 2723 ** ................................................................................ 3266 3275 if( !pPager->journalOpen ){ 3267 3276 pPager->stmtAutoopen = 1; 3268 3277 return SQLITE_OK; 3269 3278 } 3270 3279 assert( pPager->journalOpen ); 3271 3280 pPager->aInStmt = sqliteMalloc( pPager->dbSize/8 + 1 ); 3272 3281 if( pPager->aInStmt==0 ){ 3273 - sqlite3OsLock(pPager->fd, SHARED_LOCK); 3282 + /* sqlite3OsLock(pPager->fd, SHARED_LOCK); */ 3274 3283 return SQLITE_NOMEM; 3275 3284 } 3276 3285 #ifndef NDEBUG 3277 3286 rc = sqlite3OsFileSize(pPager->jfd, &pPager->stmtJSize); 3278 3287 if( rc ) goto stmt_begin_failed; 3279 3288 assert( pPager->stmtJSize == pPager->journalOff ); 3280 3289 #endif
Changes to src/prepare.c.
9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains the implementation of the sqlite3_prepare() 13 13 ** interface, and routines that contribute to loading the database schema 14 14 ** from disk. 15 15 ** 16 -** $Id: prepare.c,v 1.4 2005/09/10 16:46:13 drh Exp $ 16 +** $Id: prepare.c,v 1.5 2005/12/06 12:52:59 danielk1977 Exp $ 17 17 */ 18 18 #include "sqliteInt.h" 19 19 #include "os.h" 20 20 #include <ctype.h> 21 21 22 22 /* 23 23 ** Fill the InitData structure with an error message that indicates 24 24 ** that the database is corrupt. 25 25 */ 26 26 static void corruptSchema(InitData *pData, const char *zExtra){ 27 - if( !sqlite3_malloc_failed ){ 27 + if( !sqlite3Tsd()->mallocFailed ){ 28 28 sqlite3SetString(pData->pzErrMsg, "malformed database schema", 29 29 zExtra!=0 && zExtra[0]!=0 ? " - " : (char*)0, zExtra, (char*)0); 30 30 } 31 31 } 32 32 33 33 /* 34 34 ** This is the callback routine for the code that initializes the ................................................................................ 67 67 int rc; 68 68 assert( db->init.busy ); 69 69 db->init.iDb = iDb; 70 70 db->init.newTnum = atoi(argv[1]); 71 71 rc = sqlite3_exec(db, argv[2], 0, 0, &zErr); 72 72 db->init.iDb = 0; 73 73 if( SQLITE_OK!=rc ){ 74 - corruptSchema(pData, zErr); 74 + if( rc==SQLITE_NOMEM ){ 75 + sqlite3Tsd()->mallocFailed = 1; 76 + }else{ 77 + corruptSchema(pData, zErr); 78 + } 75 79 sqlite3_free(zErr); 76 80 return rc; 77 81 } 78 82 }else{ 79 83 /* If the SQL column is blank it means this is an index that 80 84 ** was created to be the PRIMARY KEY or to fulfill a UNIQUE 81 85 ** constraint for a CREATE TABLE. The index should have already ................................................................................ 297 301 #ifndef SQLITE_OMIT_ANALYZE 298 302 if( rc==SQLITE_OK ){ 299 303 sqlite3AnalysisLoad(db, iDb); 300 304 } 301 305 #endif 302 306 sqlite3BtreeCloseCursor(curMain); 303 307 } 304 - if( sqlite3_malloc_failed ){ 308 + if( sqlite3Tsd()->mallocFailed ){ 305 309 sqlite3SetString(pzErrMsg, "out of memory", (char*)0); 306 310 rc = SQLITE_NOMEM; 307 311 sqlite3ResetInternalSchema(db, 0); 308 312 } 309 313 if( rc==SQLITE_OK ){ 310 314 DbSetProperty(db, iDb, DB_SchemaLoaded); 311 315 }else{ ................................................................................ 421 425 sqlite3_stmt **ppStmt, /* OUT: A pointer to the prepared statement */ 422 426 const char** pzTail /* OUT: End of parsed string */ 423 427 ){ 424 428 Parse sParse; 425 429 char *zErrMsg = 0; 426 430 int rc = SQLITE_OK; 427 431 428 - if( sqlite3_malloc_failed ){ 429 - return SQLITE_NOMEM; 430 - } 432 + assert(!sqlite3Tsd()->mallocFailed); 431 433 432 434 assert( ppStmt ); 433 435 *ppStmt = 0; 434 436 if( sqlite3SafetyOn(db) ){ 435 437 return SQLITE_MISUSE; 436 438 } 437 439 438 440 memset(&sParse, 0, sizeof(sParse)); 439 441 sParse.db = db; 440 442 sqlite3RunParser(&sParse, zSql, &zErrMsg); 441 443 442 - if( sqlite3_malloc_failed ){ 443 - rc = SQLITE_NOMEM; 444 + if( sqlite3Tsd()->mallocFailed ){ 445 + sParse.rc = SQLITE_NOMEM; 446 +#if 0 447 + sqlite3RollbackInternalChanges(db); 444 448 sqlite3RollbackAll(db); 445 - sqlite3ResetInternalSchema(db, 0); 446 449 db->flags &= ~SQLITE_InTrans; 447 - goto prepare_out; 450 + db->autoCommit = 1; 451 +#endif 448 452 } 449 453 if( sParse.rc==SQLITE_DONE ) sParse.rc = SQLITE_OK; 450 454 if( sParse.rc!=SQLITE_OK && sParse.checkSchema && !schemaIsValid(db) ){ 451 455 sParse.rc = SQLITE_SCHEMA; 452 456 } 453 457 if( sParse.rc==SQLITE_SCHEMA ){ 454 458 sqlite3ResetInternalSchema(db, 0); ................................................................................ 486 490 487 491 if( zErrMsg ){ 488 492 sqlite3Error(db, rc, "%s", zErrMsg); 489 493 sqliteFree(zErrMsg); 490 494 }else{ 491 495 sqlite3Error(db, rc, 0); 492 496 } 497 + 498 + /* We must check for malloc failure last of all, in case malloc() failed 499 + ** inside of the sqlite3Error() call above or something. 500 + */ 501 + if( sqlite3Tsd()->mallocFailed ){ 502 + rc = SQLITE_NOMEM; 503 + sqlite3Error(db, rc, 0); 504 + } 505 + 506 + sqlite3ClearMallocFailed(); 493 507 return rc; 494 508 } 495 509 496 510 #ifndef SQLITE_OMIT_UTF16 497 511 /* 498 512 ** Compile the UTF-16 encoded SQL statement zSql into a statement handle. 499 513 */
Changes to src/select.c.
8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains C code routines that are called by the parser 13 13 ** to handle SELECT statements in SQLite. 14 14 ** 15 -** $Id: select.c,v 1.280 2005/11/16 13:47:51 drh Exp $ 15 +** $Id: select.c,v 1.281 2005/12/06 12:52:59 danielk1977 Exp $ 16 16 */ 17 17 #include "sqliteInt.h" 18 18 19 19 20 20 /* 21 21 ** Allocate a new Select structure and return a pointer to that 22 22 ** structure. ................................................................................ 151 151 } 152 152 153 153 /* 154 154 ** Set the value of a token to a '\000'-terminated string. 155 155 */ 156 156 static void setToken(Token *p, const char *z){ 157 157 p->z = z; 158 - p->n = strlen(z); 158 + p->n = z ? strlen(z) : 0; 159 159 p->dyn = 0; 160 160 } 161 161 162 162 /* 163 163 ** Create an expression node for an identifier with the name of zName 164 164 */ 165 165 static Expr *createIdExpr(const char *zName){ ................................................................................ 852 852 /* If this is an EXPLAIN, skip this step */ 853 853 if( pParse->explain ){ 854 854 return; 855 855 } 856 856 #endif 857 857 858 858 assert( v!=0 ); 859 - if( pParse->colNamesSet || v==0 || sqlite3_malloc_failed ) return; 859 + if( pParse->colNamesSet || v==0 || sqlite3Tsd()->mallocFailed ) return; 860 860 pParse->colNamesSet = 1; 861 861 fullNames = (db->flags & SQLITE_FullColNames)!=0; 862 862 shortNames = (db->flags & SQLITE_ShortColNames)!=0; 863 863 sqlite3VdbeSetNumCols(v, pEList->nExpr); 864 864 for(i=0; i<pEList->nExpr; i++){ 865 865 Expr *p; 866 866 p = pEList->a[i].pExpr; ................................................................................ 980 980 /* Use the original text of the column expression as its name */ 981 981 zName = sqlite3MPrintf("%T", &p->span); 982 982 }else{ 983 983 /* If all else fails, make up a name */ 984 984 zName = sqlite3MPrintf("column%d", i+1); 985 985 } 986 986 sqlite3Dequote(zName); 987 - if( sqlite3_malloc_failed ){ 987 + if( sqlite3Tsd()->mallocFailed ){ 988 988 sqliteFree(zName); 989 989 sqlite3DeleteTable(0, pTab); 990 990 return 0; 991 991 } 992 992 993 993 /* Make sure the column name is unique. If the name is not unique, 994 994 ** append a integer to the name so that it becomes unique. ................................................................................ 1052 1052 static int prepSelectStmt(Parse *pParse, Select *p){ 1053 1053 int i, j, k, rc; 1054 1054 SrcList *pTabList; 1055 1055 ExprList *pEList; 1056 1056 Table *pTab; 1057 1057 struct SrcList_item *pFrom; 1058 1058 1059 - if( p==0 || p->pSrc==0 || sqlite3_malloc_failed ) return 1; 1059 + if( p==0 || p->pSrc==0 || sqlite3Tsd()->mallocFailed ) return 1; 1060 1060 pTabList = p->pSrc; 1061 1061 pEList = p->pEList; 1062 1062 1063 1063 /* Make sure cursor numbers have been assigned to all entries in 1064 1064 ** the FROM clause of the SELECT statement. 1065 1065 */ 1066 1066 sqlite3SrcListAssignCursors(pParse, p->pSrc); ................................................................................ 1160 1160 for(k=0; k<pEList->nExpr; k++){ 1161 1161 Expr *pE = a[k].pExpr; 1162 1162 if( pE->op!=TK_ALL && 1163 1163 (pE->op!=TK_DOT || pE->pRight==0 || pE->pRight->op!=TK_ALL) ){ 1164 1164 /* This particular expression does not need to be expanded. 1165 1165 */ 1166 1166 pNew = sqlite3ExprListAppend(pNew, a[k].pExpr, 0); 1167 - pNew->a[pNew->nExpr-1].zName = a[k].zName; 1167 + if( pNew ){ 1168 + pNew->a[pNew->nExpr-1].zName = a[k].zName; 1169 + }else{ 1170 + rc = 1; 1171 + } 1168 1172 a[k].pExpr = 0; 1169 1173 a[k].zName = 0; 1170 1174 }else{ 1171 1175 /* This expression is a "*" or a "TABLE.*" and needs to be 1172 1176 ** expanded. */ 1173 1177 int tableSeen = 0; /* Set to 1 when TABLE matches */ 1174 1178 char *zTName; /* text of name of TABLE */ ................................................................................ 2635 2639 int isDistinct; /* True if the DISTINCT keyword is present */ 2636 2640 int distinct; /* Table to use for the distinct set */ 2637 2641 int rc = 1; /* Value to return from this function */ 2638 2642 int addrSortIndex; /* Address of an OP_OpenVirtual instruction */ 2639 2643 AggInfo sAggInfo; /* Information used by aggregate queries */ 2640 2644 int iEnd; /* Address of the end of the query */ 2641 2645 2642 - if( sqlite3_malloc_failed || pParse->nErr || p==0 ) return 1; 2646 + if( sqlite3Tsd()->mallocFailed || pParse->nErr || p==0 ) return 1; 2643 2647 if( sqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0) ) return 1; 2644 2648 memset(&sAggInfo, 0, sizeof(sAggInfo)); 2645 2649 2646 2650 #ifndef SQLITE_OMIT_COMPOUND_SELECT 2647 2651 /* If there is are a sequence of queries, do the earlier ones first. 2648 2652 */ 2649 2653 if( p->pPrior ){ ................................................................................ 2889 2893 } 2890 2894 sAggInfo.nAccumulator = sAggInfo.nColumn; 2891 2895 for(i=0; i<sAggInfo.nFunc; i++){ 2892 2896 if( sqlite3ExprAnalyzeAggList(&sNC, sAggInfo.aFunc[i].pExpr->pList) ){ 2893 2897 goto select_end; 2894 2898 } 2895 2899 } 2896 - if( sqlite3_malloc_failed ) goto select_end; 2900 + if( sqlite3Tsd()->mallocFailed ) goto select_end; 2897 2901 2898 2902 /* Processing for aggregates with GROUP BY is very different and 2899 2903 ** much more complex tha aggregates without a GROUP BY. 2900 2904 */ 2901 2905 if( pGroupBy ){ 2902 2906 KeyInfo *pKeyInfo; /* Keying information for the group by clause */ 2903 2907
Changes to src/sqliteInt.h.
7 7 ** May you do good and not evil. 8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** Internal interface definitions for SQLite. 13 13 ** 14 -** @(#) $Id: sqliteInt.h,v 1.428 2005/11/14 22:29:05 drh Exp $ 14 +** @(#) $Id: sqliteInt.h,v 1.429 2005/12/06 12:52:59 danielk1977 Exp $ 15 15 */ 16 16 #ifndef _SQLITEINT_H_ 17 17 #define _SQLITEINT_H_ 18 18 19 19 /* 20 20 ** Many people are failing to set -DNDEBUG=1 when compiling SQLite. 21 21 ** Setting NDEBUG makes the code smaller and run faster. So the following ................................................................................ 259 259 # define sqliteMalloc sqlite3Malloc 260 260 # define sqliteMallocRaw sqlite3MallocRaw 261 261 # define sqliteRealloc sqlite3Realloc 262 262 # define sqliteStrDup sqlite3StrDup 263 263 # define sqliteStrNDup sqlite3StrNDup 264 264 #endif 265 265 266 -/* 267 -** This variable gets set if malloc() ever fails. After it gets set, 268 -** the SQLite library shuts down permanently. 269 -*/ 270 -extern int sqlite3_malloc_failed; 271 - 272 266 /* 273 267 ** The following global variables are used for testing and debugging 274 268 ** only. They only work if SQLITE_DEBUG is defined. 275 269 */ 276 270 #ifdef SQLITE_MEMDEBUG 277 271 extern int sqlite3_nMalloc; /* Number of sqliteMalloc() calls */ 278 272 extern int sqlite3_nFree; /* Number of sqliteFree() calls */ ................................................................................ 1381 1375 ** from sqlite3Init and OP_ParseSchema into the sqlite3InitCallback. 1382 1376 */ 1383 1377 typedef struct { 1384 1378 sqlite3 *db; /* The database being initialized */ 1385 1379 char **pzErrMsg; /* Error message stored here */ 1386 1380 } InitData; 1387 1381 1382 +/* 1383 +** An instance of this structure is allocated for each thread that uses SQLite. 1384 +*/ 1385 +typedef struct SqliteTsd SqliteTsd; 1386 +struct SqliteTsd { 1387 + int mallocFailed; /* True after a malloc() has failed */ 1388 +}; 1389 + 1388 1390 /* 1389 1391 * This global flag is set for performance testing of triggers. When it is set 1390 1392 * SQLite will perform the overhead of building new and old trigger references 1391 1393 * even when no triggers exist 1392 1394 */ 1393 1395 extern int sqlite3_always_code_trigger_setup; 1394 1396 ................................................................................ 1670 1672 void sqlite3Analyze(Parse*, Token*, Token*); 1671 1673 int sqlite3InvokeBusyHandler(BusyHandler*); 1672 1674 int sqlite3FindDb(sqlite3*, Token*); 1673 1675 void sqlite3AnalysisLoad(sqlite3*,int iDB); 1674 1676 void sqlite3DefaultRowEst(Index*); 1675 1677 void sqlite3RegisterLikeFunctions(sqlite3*, int); 1676 1678 int sqlite3IsLikeFunction(sqlite3*,Expr*,int*,char*); 1679 +SqliteTsd *sqlite3Tsd(); 1680 +void sqlite3ClearMallocFailed(); 1677 1681 1678 1682 #ifdef SQLITE_SSE 1679 1683 #include "sseInt.h" 1680 1684 #endif 1681 1685 1682 1686 #endif
Changes to src/test1.c.
9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** Code for testing the printf() interface to SQLite. This code 13 13 ** is not included in the SQLite library. It is used for automated 14 14 ** testing of the SQLite library. 15 15 ** 16 -** $Id: test1.c,v 1.170 2005/12/05 13:20:02 drh Exp $ 16 +** $Id: test1.c,v 1.171 2005/12/06 12:53:00 danielk1977 Exp $ 17 17 */ 18 18 #include "sqliteInt.h" 19 19 #include "tcl.h" 20 20 #include "os.h" 21 21 #include <stdlib.h> 22 22 #include <string.h> 23 23 ................................................................................ 783 783 ** 784 784 ** Rig sqliteMalloc() to fail on the N-th call and every REPEAT-INTERVAL call 785 785 ** after that. If REPEAT-INTERVAL is 0 or is omitted, then only a single 786 786 ** malloc will fail. If REPEAT-INTERVAL is 1 then all mallocs after the 787 787 ** first failure will continue to fail on every call. If REPEAT-INTERVAL is 788 788 ** 2 then every other malloc will fail. And so forth. 789 789 ** 790 -** Turn off this mechanism and reset the sqlite3_malloc_failed variable is N==0. 790 +** Turn off this mechanism and reset the sqlite3Tsd()->mallocFailed variable is N==0. 791 791 */ 792 792 #ifdef SQLITE_MEMDEBUG 793 793 static int sqlite_malloc_fail( 794 794 void *NotUsed, 795 795 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ 796 796 int argc, /* Number of arguments */ 797 797 char **argv /* Text of each argument */ ................................................................................ 806 806 if( argc==3 ){ 807 807 if( Tcl_GetInt(interp, argv[2], &rep) ) return TCL_ERROR; 808 808 }else{ 809 809 rep = 0; 810 810 } 811 811 sqlite3_iMallocFail = n; 812 812 sqlite3_iMallocReset = rep; 813 - sqlite3_malloc_failed = 0; 813 + sqlite3Tsd()->mallocFailed = 0; 814 814 return TCL_OK; 815 815 } 816 816 #endif 817 817 818 818 /* 819 819 ** Usage: sqlite_malloc_stat 820 820 ** ................................................................................ 948 948 if( db && sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR; 949 949 return TCL_OK; 950 950 } 951 951 952 952 /* 953 953 ** Usage: sqlite3_reset STMT 954 954 ** 955 -** Finalize a statement handle. 955 +** Reset a statement handle. 956 956 */ 957 957 static int test_reset( 958 958 void * clientData, 959 959 Tcl_Interp *interp, 960 960 int objc, 961 961 Tcl_Obj *CONST objv[] 962 962 ){ ................................................................................ 968 968 Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0); 969 969 return TCL_ERROR; 970 970 } 971 971 972 972 if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR; 973 973 974 974 rc = sqlite3_reset(pStmt); 975 - if( pStmt && 976 - sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR; 975 + if( pStmt && sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ){ 976 + return TCL_ERROR; 977 + } 977 978 Tcl_SetResult(interp, (char *)errorName(rc), TCL_STATIC); 979 +/* 978 980 if( rc ){ 979 981 return TCL_ERROR; 980 982 } 983 +*/ 981 984 return TCL_OK; 982 985 } 983 986 984 987 /* 985 988 ** Usage: sqlite3_expired STMT 986 989 ** 987 990 ** Return TRUE if a recompilation of the statement is recommended.
Changes to src/tokenize.c.
11 11 ************************************************************************* 12 12 ** An tokenizer for SQL 13 13 ** 14 14 ** This file contains C code that splits an SQL input string up into 15 15 ** individual tokens and sends those tokens one-by-one over to the 16 16 ** parser for analysis. 17 17 ** 18 -** $Id: tokenize.c,v 1.108 2005/10/23 11:29:40 drh Exp $ 18 +** $Id: tokenize.c,v 1.109 2005/12/06 12:53:00 danielk1977 Exp $ 19 19 */ 20 20 #include "sqliteInt.h" 21 21 #include "os.h" 22 22 #include <ctype.h> 23 23 #include <stdlib.h> 24 24 25 25 /* ................................................................................ 344 344 extern int sqlite3Parser(void*, int, Token, Parse*); 345 345 346 346 db->flags &= ~SQLITE_Interrupt; 347 347 pParse->rc = SQLITE_OK; 348 348 i = 0; 349 349 pEngine = sqlite3ParserAlloc((void*(*)(int))sqlite3MallocX); 350 350 if( pEngine==0 ){ 351 - sqlite3SetString(pzErrMsg, "out of memory", (char*)0); 352 351 return SQLITE_NOMEM; 353 352 } 354 353 assert( pParse->sLastToken.dyn==0 ); 355 354 assert( pParse->pNewTable==0 ); 356 355 assert( pParse->pNewTrigger==0 ); 357 356 assert( pParse->nVar==0 ); 358 357 assert( pParse->nVarExpr==0 ); 359 358 assert( pParse->nVarExprAlloc==0 ); 360 359 assert( pParse->apVarExpr==0 ); 361 360 pParse->zTail = pParse->zSql = zSql; 362 - while( sqlite3_malloc_failed==0 && zSql[i]!=0 ){ 361 + while( sqlite3Tsd()->mallocFailed==0 && zSql[i]!=0 ){ 363 362 assert( i>=0 ); 364 363 pParse->sLastToken.z = &zSql[i]; 365 364 assert( pParse->sLastToken.dyn==0 ); 366 365 pParse->sLastToken.n = getToken((unsigned char*)&zSql[i],&tokenType); 367 366 i += pParse->sLastToken.n; 368 367 switch( tokenType ){ 369 368 case TK_SPACE: ................................................................................ 403 402 if( lastTokenParsed!=TK_SEMI ){ 404 403 sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse); 405 404 pParse->zTail = &zSql[i]; 406 405 } 407 406 sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse); 408 407 } 409 408 sqlite3ParserFree(pEngine, sqlite3FreeX); 410 - if( sqlite3_malloc_failed ){ 409 + if( sqlite3Tsd()->mallocFailed ){ 411 410 pParse->rc = SQLITE_NOMEM; 412 411 } 413 412 if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){ 414 - sqlite3SetString(&pParse->zErrMsg, sqlite3ErrStr(pParse->rc), 415 - (char*)0); 413 + sqlite3SetString(&pParse->zErrMsg, sqlite3ErrStr(pParse->rc), (char*)0); 416 414 } 417 415 if( pParse->zErrMsg ){ 418 416 if( pzErrMsg && *pzErrMsg==0 ){ 419 417 *pzErrMsg = pParse->zErrMsg; 420 418 }else{ 421 419 sqliteFree(pParse->zErrMsg); 422 420 }
Changes to src/trigger.c.
76 76 } 77 77 78 78 /* If the trigger name was unqualified, and the table is a temp table, 79 79 ** then set iDb to 1 to create the trigger in the temporary database. 80 80 ** If sqlite3SrcListLookup() returns 0, indicating the table does not 81 81 ** exist, the error is caught by the block below. 82 82 */ 83 - if( !pTableName || sqlite3_malloc_failed ) goto trigger_cleanup; 83 + if( !pTableName || sqlite3Tsd()->mallocFailed ) goto trigger_cleanup; 84 84 pTab = sqlite3SrcListLookup(pParse, pTableName); 85 85 if( pName2->n==0 && pTab && pTab->iDb==1 ){ 86 86 iDb = 1; 87 87 } 88 88 89 89 /* Ensure the table name matches database name and that the table exists */ 90 - if( sqlite3_malloc_failed ) goto trigger_cleanup; 90 + if( sqlite3Tsd()->mallocFailed ) goto trigger_cleanup; 91 91 assert( pTableName->nSrc==1 ); 92 92 if( sqlite3FixInit(&sFix, pParse, iDb, "trigger", pName) && 93 93 sqlite3FixSrcList(&sFix, pTableName) ){ 94 94 goto trigger_cleanup; 95 95 } 96 96 pTab = sqlite3SrcListLookup(pParse, pTableName); 97 97 if( !pTab ){ ................................................................................ 246 246 247 247 if( db->init.busy ){ 248 248 Table *pTab; 249 249 Trigger *pDel; 250 250 pDel = sqlite3HashInsert(&db->aDb[pTrig->iDb].trigHash, 251 251 pTrig->name, strlen(pTrig->name)+1, pTrig); 252 252 if( pDel ){ 253 - assert( sqlite3_malloc_failed && pDel==pTrig ); 253 + assert( sqlite3Tsd()->mallocFailed && pDel==pTrig ); 254 254 goto triggerfinish_cleanup; 255 255 } 256 256 pTab = sqlite3LocateTable(pParse,pTrig->table,db->aDb[pTrig->iTabDb].zName); 257 257 assert( pTab!=0 ); 258 258 pTrig->pNext = pTab->pTrigger; 259 259 pTab->pTrigger = pTrig; 260 260 pTrig = 0; ................................................................................ 426 426 Trigger *pTrigger = 0; 427 427 int i; 428 428 const char *zDb; 429 429 const char *zName; 430 430 int nName; 431 431 sqlite3 *db = pParse->db; 432 432 433 - if( sqlite3_malloc_failed ) goto drop_trigger_cleanup; 433 + if( sqlite3Tsd()->mallocFailed ) goto drop_trigger_cleanup; 434 434 if( SQLITE_OK!=sqlite3ReadSchema(pParse) ){ 435 435 goto drop_trigger_cleanup; 436 436 } 437 437 438 438 assert( pName->nSrc==1 ); 439 439 zDb = pName->a[0].zDatabase; 440 440 zName = pName->a[0].zName;
Changes to src/update.c.
8 8 ** May you find forgiveness for yourself and forgive others. 9 9 ** May you share freely, never taking more than you give. 10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains C code routines that are called by the parser 13 13 ** to handle UPDATE statements. 14 14 ** 15 -** $Id: update.c,v 1.113 2005/11/14 22:29:05 drh Exp $ 15 +** $Id: update.c,v 1.114 2005/12/06 12:53:01 danielk1977 Exp $ 16 16 */ 17 17 #include "sqliteInt.h" 18 18 19 19 /* 20 20 ** The most recently coded instruction was an OP_Column to retrieve the 21 21 ** i-th column of table pTab. This routine sets the P3 parameter of the 22 22 ** OP_Column to the default value, if any. ................................................................................ 95 95 int triggers_exist = 0; /* True if any row triggers exist */ 96 96 #endif 97 97 98 98 int newIdx = -1; /* index of trigger "new" temp table */ 99 99 int oldIdx = -1; /* index of trigger "old" temp table */ 100 100 101 101 sContext.pParse = 0; 102 - if( pParse->nErr || sqlite3_malloc_failed ) goto update_cleanup; 102 + if( pParse->nErr || sqlite3Tsd()->mallocFailed ) goto update_cleanup; 103 103 db = pParse->db; 104 104 assert( pTabList->nSrc==1 ); 105 105 106 106 /* Locate the table which we want to update. 107 107 */ 108 108 pTab = sqlite3SrcListLookup(pParse, pTabList); 109 109 if( pTab==0 ) goto update_cleanup;
Changes to src/util.c.
10 10 ** 11 11 ************************************************************************* 12 12 ** Utility functions used throughout sqlite. 13 13 ** 14 14 ** This file contains functions for allocating memory, comparing 15 15 ** strings, and stuff like that. 16 16 ** 17 -** $Id: util.c,v 1.148 2005/10/20 07:28:19 drh Exp $ 17 +** $Id: util.c,v 1.149 2005/12/06 12:53:01 danielk1977 Exp $ 18 18 */ 19 19 #include "sqliteInt.h" 20 20 #include <stdarg.h> 21 21 #include <ctype.h> 22 22 23 23 #if SQLITE_MEMDEBUG>2 && defined(__GLIBC__) 24 24 #include <execinfo.h> ................................................................................ 33 33 } 34 34 fprintf(stderr, "\n"); 35 35 } 36 36 #else 37 37 #define print_stack_trace() 38 38 #endif 39 39 40 +#if 0 40 41 /* 41 42 ** If malloc() ever fails, this global variable gets set to 1. 42 43 ** This causes the library to abort and never again function. 43 44 */ 44 -int sqlite3_malloc_failed = 0; 45 +int sqlite3Tsd()->mallocFailed = 0; 46 +#endif 45 47 46 48 /* 47 49 ** If SQLITE_MEMDEBUG is defined, then use versions of malloc() and 48 50 ** free() that track memory usage and check for buffer overruns. 49 51 */ 50 52 #ifdef SQLITE_MEMDEBUG 51 53 ................................................................................ 77 79 ** Check for a simulated memory allocation failure. Return true if 78 80 ** the failure should be simulated. Return false to proceed as normal. 79 81 */ 80 82 static int simulatedMallocFailure(int n, char *zFile, int line){ 81 83 if( sqlite3_iMallocFail>=0 ){ 82 84 sqlite3_iMallocFail--; 83 85 if( sqlite3_iMallocFail==0 ){ 84 - sqlite3_malloc_failed++; 86 + sqlite3Tsd()->mallocFailed++; 85 87 #if SQLITE_MEMDEBUG>1 86 88 fprintf(stderr,"**** failed to allocate %d bytes at %s:%d\n", 87 89 n, zFile,line); 88 90 #endif 89 91 sqlite3_iMallocFail = sqlite3_iMallocReset; 90 92 return 1; 91 93 } ................................................................................ 97 99 ** Allocate new memory and set it to zero. Return NULL if 98 100 ** no memory is available. 99 101 */ 100 102 void *sqlite3Malloc_(int n, int bZero, char *zFile, int line){ 101 103 void *p; 102 104 int *pi; 103 105 int i, k; 106 + 107 + /* Any malloc() calls between a malloc() failure and clearing the 108 + ** mallocFailed flag (done before returning control to the user) 109 + ** automatically fail. Although this restriction may have to be relaxed in 110 + ** the future, for now it makes the system easier to test. 111 + ** 112 + ** TODO: This will eventually be done as part of the same wrapper that may 113 + ** call sqlite3_release_memory(). Above the sqlite3OsMalloc() level. 114 + */ 115 + if( sqlite3Tsd()->mallocFailed ){ 116 + return 0; 117 + } 118 + 104 119 if( n==0 ){ 105 120 return 0; 106 121 } 107 122 if( simulatedMallocFailure(n, zFile, line) ){ 108 123 return 0; 109 124 } 110 125 sqlite3_memUsed += n; 111 126 if( sqlite3_memMax<sqlite3_memUsed ) sqlite3_memMax = sqlite3_memUsed; 112 127 k = (n+sizeof(int)-1)/sizeof(int); 113 128 pi = malloc( (N_GUARD*2+1+k)*sizeof(int)); 114 129 if( pi==0 ){ 115 - if( n>0 ) sqlite3_malloc_failed++; 130 + if( n>0 ) sqlite3Tsd()->mallocFailed++; 116 131 return 0; 117 132 } 118 133 sqlite3_nMalloc++; 119 134 for(i=0; i<N_GUARD; i++) pi[i] = 0xdead1122; 120 135 pi[N_GUARD] = n; 121 136 for(i=0; i<N_GUARD; i++) pi[k+1+N_GUARD+i] = 0xdead3344; 122 137 p = &pi[N_GUARD+1]; ................................................................................ 224 239 (int)oldP); 225 240 return 0; 226 241 } 227 242 } 228 243 k = (n + sizeof(int) - 1)/sizeof(int); 229 244 pi = malloc( (k+N_GUARD*2+1)*sizeof(int) ); 230 245 if( pi==0 ){ 231 - if( n>0 ) sqlite3_malloc_failed++; 246 + if( n>0 ) sqlite3Tsd()->mallocFailed++; 232 247 return 0; 233 248 } 234 249 for(i=0; i<N_GUARD; i++) pi[i] = 0xdead1122; 235 250 pi[N_GUARD] = n; 236 251 sqlite3_memUsed += n; 237 252 if( sqlite3_memMax<sqlite3_memUsed ) sqlite3_memMax = sqlite3_memUsed; 238 253 for(i=0; i<N_GUARD; i++) pi[k+N_GUARD+1+i] = 0xdead3344; ................................................................................ 290 305 ** Allocate new memory and set it to zero. Return NULL if 291 306 ** no memory is available. See also sqliteMallocRaw(). 292 307 */ 293 308 void *sqlite3Malloc(int n){ 294 309 void *p; 295 310 if( n==0 ) return 0; 296 311 if( (p = malloc(n))==0 ){ 297 - if( n>0 ) sqlite3_malloc_failed++; 312 + if( n>0 ) sqlite3Tsd()->mallocFailed++; 298 313 }else{ 299 314 memset(p, 0, n); 300 315 } 301 316 return p; 302 317 } 303 318 304 319 /* ................................................................................ 305 320 ** Allocate new memory but do not set it to zero. Return NULL if 306 321 ** no memory is available. See also sqliteMalloc(). 307 322 */ 308 323 void *sqlite3MallocRaw(int n){ 309 324 void *p; 310 325 if( n==0 ) return 0; 311 326 if( (p = malloc(n))==0 ){ 312 - if( n>0 ) sqlite3_malloc_failed++; 327 + if( n>0 ) sqlite3Tsd()->mallocFailed++; 313 328 } 314 329 return p; 315 330 } 316 331 317 332 /* 318 333 ** Free memory previously obtained from sqliteMalloc() 319 334 */ ................................................................................ 335 350 } 336 351 if( n==0 ){ 337 352 sqliteFree(p); 338 353 return 0; 339 354 } 340 355 p2 = realloc(p, n); 341 356 if( p2==0 ){ 342 - if( n>0 ) sqlite3_malloc_failed++; 357 + if( n>0 ) sqlite3Tsd()->mallocFailed++; 343 358 } 344 359 return p2; 345 360 } 346 361 347 362 /* 348 363 ** Make a copy of a string in memory obtained from sqliteMalloc() 349 364 */ ................................................................................ 1003 1018 assert( sizeof(p)==sizeof(v2) ); 1004 1019 v2 = (u32)v; 1005 1020 p = *(void**)&v2; 1006 1021 } 1007 1022 return p; 1008 1023 } 1009 1024 #endif 1025 + 1026 +/* 1027 +** Return a pointer to the SqliteTsd associated with the calling thread. 1028 +*/ 1029 +static SqliteTsd tsd = { 0 }; 1030 +SqliteTsd *sqlite3Tsd(){ 1031 + return &tsd; 1032 +} 1033 + 1034 +void sqlite3ClearMallocFailed(){ 1035 + sqlite3Tsd()->mallocFailed = 0; 1036 +} 1037 + 1038 + 1039 +
Changes to src/vacuum.c.
10 10 ** 11 11 ************************************************************************* 12 12 ** This file contains code used to implement the VACUUM command. 13 13 ** 14 14 ** Most of the code in this file may be omitted by defining the 15 15 ** SQLITE_OMIT_VACUUM macro. 16 16 ** 17 -** $Id: vacuum.c,v 1.49 2005/11/30 03:20:32 drh Exp $ 17 +** $Id: vacuum.c,v 1.50 2005/12/06 12:53:01 danielk1977 Exp $ 18 18 */ 19 19 #include "sqliteInt.h" 20 20 #include "os.h" 21 21 22 22 #ifndef SQLITE_OMIT_VACUUM 23 23 /* 24 24 ** Generate a random name of 20 character in length. ................................................................................ 166 166 zSql = 0; 167 167 if( rc!=SQLITE_OK ) goto end_of_vacuum; 168 168 assert( strcmp(db->aDb[db->nDb-1].zName,"vacuum_db")==0 ); 169 169 pTemp = db->aDb[db->nDb-1].pBt; 170 170 sqlite3BtreeSetPageSize(pTemp, sqlite3BtreeGetPageSize(pMain), 171 171 sqlite3BtreeGetReserve(pMain)); 172 172 assert( sqlite3BtreeGetPageSize(pTemp)==sqlite3BtreeGetPageSize(pMain) ); 173 - execSql(db, "PRAGMA vacuum_db.synchronous=OFF"); 173 + rc = execSql(db, "PRAGMA vacuum_db.synchronous=OFF"); 174 + if( rc!=SQLITE_OK ){ 175 + goto end_of_vacuum; 176 + } 174 177 175 178 #ifndef SQLITE_OMIT_AUTOVACUUM 176 179 sqlite3BtreeSetAutoVacuum(pTemp, sqlite3BtreeGetAutoVacuum(pMain)); 177 180 #endif 178 181 179 182 /* Begin a transaction */ 180 183 rc = execSql(db, "BEGIN EXCLUSIVE;"); ................................................................................ 280 283 if( rc!=SQLITE_OK ) goto end_of_vacuum; 281 284 rc = sqlite3BtreeCommit(pTemp); 282 285 if( rc!=SQLITE_OK ) goto end_of_vacuum; 283 286 rc = sqlite3BtreeCommit(pMain); 284 287 } 285 288 286 289 end_of_vacuum: 290 + /* If one of the execSql() calls above returned SQLITE_NOMEM, then the 291 + ** mallocFailed flag will be clear (because execSql() calls sqlite3_exec()). 292 + ** Fix this so the flag and return code match. 293 + */ 294 + if( rc==SQLITE_NOMEM ){ 295 + sqlite3Tsd()->mallocFailed = 1; 296 + } 297 + 287 298 /* Restore the original value of db->flags */ 288 299 db->flags = saved_flags; 289 300 290 301 /* Currently there is an SQL level transaction open on the vacuum 291 302 ** database. No locks are held on any other files (since the main file 292 303 ** was committed at the btree level). So it safe to end the transaction 293 304 ** by manually setting the autoCommit flag to true and detaching the 294 305 ** vacuum database. The vacuum_db journal file is deleted when the pager 295 306 ** is closed by the DETACH. 296 307 */ 297 308 db->autoCommit = 1; 298 - rc2 = execSql(db, "DETACH vacuum_db;"); 299 - if( rc==SQLITE_OK ){ 300 - rc = rc2; 309 + 310 + /* TODO: We need to detach vacuum_db (if it is attached) even if malloc() 311 + ** failed. Right now trying to do so will cause an assert() to fail in ** 312 + **_prepare() (because it should be impossible to call _prepare() with the ** 313 + ** mallocFailed flag set). So really, we need to be able to detach a database 314 + ** without calling malloc(). Which seems plausible. 315 + */ 316 + if( !sqlite3Tsd()->mallocFailed ){ 317 + rc2 = execSql(db, "DETACH vacuum_db;"); 318 + if( rc==SQLITE_OK ){ 319 + rc = rc2; 320 + } 301 321 } 302 322 if( zTemp ){ 303 323 sqlite3Os.xDelete(zTemp); 304 324 sqliteFree(zTemp); 305 325 } 306 326 sqliteFree( zSql ); 307 327 sqlite3ResetInternalSchema(db, 0); 308 328 #endif 309 329 310 330 return rc; 311 331 }
Changes to src/vdbe.c.
39 39 ** 40 40 ** Various scripts scan this source file in order to generate HTML 41 41 ** documentation, headers files, or other derived files. The formatting 42 42 ** of the code in this file is, therefore, important. See other comments 43 43 ** in this file for details. If in doubt, do not deviate from existing 44 44 ** commenting and indentation practices when changing or adding code. 45 45 ** 46 -** $Id: vdbe.c,v 1.501 2005/11/30 03:20:32 drh Exp $ 46 +** $Id: vdbe.c,v 1.502 2005/12/06 12:53:01 danielk1977 Exp $ 47 47 */ 48 48 #include "sqliteInt.h" 49 49 #include "os.h" 50 50 #include <ctype.h> 51 51 #include "vdbeInt.h" 52 52 53 53 /* ................................................................................ 390 390 391 391 if( p->magic!=VDBE_MAGIC_RUN ) return SQLITE_MISUSE; 392 392 assert( db->magic==SQLITE_MAGIC_BUSY ); 393 393 assert( p->rc==SQLITE_OK || p->rc==SQLITE_BUSY ); 394 394 p->rc = SQLITE_OK; 395 395 assert( p->explain==0 ); 396 396 pTos = p->pTos; 397 - if( sqlite3_malloc_failed ) goto no_mem; 397 + if( sqlite3Tsd()->mallocFailed ) goto no_mem; 398 398 if( p->popStack ){ 399 399 popStack(&pTos, p->popStack); 400 400 p->popStack = 0; 401 401 } 402 402 p->resOnStack = 0; 403 403 db->busyHandler.nBusy = 0; 404 404 CHECK_FOR_INTERRUPT; 405 405 for(pc=p->pc; rc==SQLITE_OK; pc++){ 406 406 assert( pc>=0 && pc<p->nOp ); 407 407 assert( pTos<=&p->aStack[pc] ); 408 - if( sqlite3_malloc_failed ) goto no_mem; 408 + if( sqlite3Tsd()->mallocFailed ) goto no_mem; 409 409 #ifdef VDBE_PROFILE 410 410 origPc = pc; 411 411 start = hwtime(); 412 412 #endif 413 413 pOp = &p->aOp[pc]; 414 414 415 415 /* Only allow tracing if SQLITE_DEBUG is defined. ................................................................................ 1131 1131 assert( pOp[-1].p3type==P3_COLLSEQ ); 1132 1132 assert( pOp[-1].opcode==OP_CollSeq ); 1133 1133 ctx.pColl = (CollSeq *)pOp[-1].p3; 1134 1134 } 1135 1135 if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse; 1136 1136 (*ctx.pFunc->xFunc)(&ctx, n, apVal); 1137 1137 if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse; 1138 - if( sqlite3_malloc_failed ) goto no_mem; 1138 + if( sqlite3Tsd()->mallocFailed ) goto no_mem; 1139 1139 popStack(&pTos, n); 1140 1140 1141 1141 /* If any auxilary data functions have been called by this user function, 1142 1142 ** immediately call the destructor for any non-static values. 1143 1143 */ 1144 1144 if( ctx.pVdbeFunc ){ 1145 1145 sqlite3VdbeDeleteAuxData(ctx.pVdbeFunc, pOp->p1); ................................................................................ 3109 3109 # define MAX_ROWID ( (((u64)0x7fffffff)<<32) | (u64)0xffffffff ) 3110 3110 #endif 3111 3111 3112 3112 if( !pC->useRandomRowid ){ 3113 3113 if( pC->nextRowidValid ){ 3114 3114 v = pC->nextRowid; 3115 3115 }else{ 3116 - rx = sqlite3BtreeLast(pC->pCursor, &res); 3116 + rc = sqlite3BtreeLast(pC->pCursor, &res); 3117 + if( rc!=SQLITE_OK ){ 3118 + goto abort_due_to_error; 3119 + } 3117 3120 if( res ){ 3118 3121 v = 1; 3119 3122 }else{ 3120 3123 sqlite3BtreeKeySize(pC->pCursor, &v); 3121 3124 v = keyToInt(v); 3122 3125 if( v==MAX_ROWID ){ 3123 3126 pC->useRandomRowid = 1; ................................................................................ 3889 3892 zSql = sqlite3MPrintf( 3890 3893 "SELECT name, rootpage, sql, %d FROM '%q'.%s WHERE %s", 3891 3894 pOp->p1, db->aDb[iDb].zName, zMaster, pOp->p3); 3892 3895 if( zSql==0 ) goto no_mem; 3893 3896 sqlite3SafetyOff(db); 3894 3897 assert( db->init.busy==0 ); 3895 3898 db->init.busy = 1; 3899 + assert(0==sqlite3Tsd()->mallocFailed); 3896 3900 rc = sqlite3_exec(db, zSql, sqlite3InitCallback, &initData, 0); 3897 3901 db->init.busy = 0; 3898 3902 sqlite3SafetyOn(db); 3903 + if( rc==SQLITE_NOMEM ){ 3904 + sqlite3Tsd()->mallocFailed = 1; 3905 + goto no_mem; 3906 + } 3899 3907 sqliteFree(zSql); 3900 3908 break; 3901 3909 } 3902 3910 3903 3911 #ifndef SQLITE_OMIT_ANALYZE 3904 3912 /* Opcode: LoadAnalysis P1 * * 3905 3913 ** ................................................................................ 4429 4437 /* Fall thru into abort_due_to_error */ 4430 4438 4431 4439 /* Jump to here for any other kind of fatal error. The "rc" variable 4432 4440 ** should hold the error number. 4433 4441 */ 4434 4442 abort_due_to_error: 4435 4443 if( p->zErrMsg==0 ){ 4436 - if( sqlite3_malloc_failed ) rc = SQLITE_NOMEM; 4444 + if( sqlite3Tsd()->mallocFailed ) rc = SQLITE_NOMEM; 4437 4445 sqlite3SetString(&p->zErrMsg, sqlite3ErrStr(rc), (char*)0); 4438 4446 } 4439 4447 goto vdbe_halt; 4440 4448 4441 4449 /* Jump to here if the sqlite3_interrupt() API sets the interrupt 4442 4450 ** flag. 4443 4451 */
Changes to src/vdbeapi.c.
151 151 ** Execute the statement pStmt, either until a row of data is ready, the 152 152 ** statement is completely executed or an error occurs. 153 153 */ 154 154 int sqlite3_step(sqlite3_stmt *pStmt){ 155 155 Vdbe *p = (Vdbe*)pStmt; 156 156 sqlite3 *db; 157 157 int rc; 158 + 159 + assert(!sqlite3Tsd()->mallocFailed); 158 160 159 161 if( p==0 || p->magic!=VDBE_MAGIC_RUN ){ 160 162 return SQLITE_MISUSE; 161 163 } 162 164 if( p->aborted ){ 163 165 return SQLITE_ABORT; 164 166 } ................................................................................ 235 237 assert( p->aOp[p->nOp-1].p3!=0 ); 236 238 assert( p->aOp[p->nOp-1].p3type==P3_DYNAMIC ); 237 239 db->xProfile(db->pProfileArg, p->aOp[p->nOp-1].p3, elapseTime); 238 240 } 239 241 #endif 240 242 241 243 sqlite3Error(p->db, rc, p->zErrMsg ? "%s" : 0, p->zErrMsg); 244 + sqlite3ClearMallocFailed(); 242 245 return rc; 243 246 } 244 247 245 248 /* 246 249 ** Extract the user data from a sqlite3_context structure and return a 247 250 ** pointer to it. 248 251 */
Changes to src/vdbeaux.c.
98 98 int i; 99 99 VdbeOp *pOp; 100 100 101 101 i = p->nOp; 102 102 p->nOp++; 103 103 assert( p->magic==VDBE_MAGIC_INIT ); 104 104 resizeOpArray(p, i+1); 105 - if( sqlite3_malloc_failed ){ 105 + if( sqlite3Tsd()->mallocFailed ){ 106 106 return 0; 107 107 } 108 108 pOp = &p->aOp[i]; 109 109 pOp->opcode = op; 110 110 pOp->p1 = p1; 111 111 pOp->p2 = p2; 112 112 pOp->p3 = 0; ................................................................................ 297 297 ** Add a whole list of operations to the operation stack. Return the 298 298 ** address of the first operation added. 299 299 */ 300 300 int sqlite3VdbeAddOpList(Vdbe *p, int nOp, VdbeOpList const *aOp){ 301 301 int addr; 302 302 assert( p->magic==VDBE_MAGIC_INIT ); 303 303 resizeOpArray(p, p->nOp + nOp); 304 - if( sqlite3_malloc_failed ){ 304 + if( sqlite3Tsd()->mallocFailed ){ 305 305 return 0; 306 306 } 307 307 addr = p->nOp; 308 308 if( nOp>0 ){ 309 309 int i; 310 310 VdbeOpList const *pIn = aOp; 311 311 for(i=0; i<nOp; i++, pIn++){ ................................................................................ 412 412 ** 413 413 ** If addr<0 then change P3 on the most recently inserted instruction. 414 414 */ 415 415 void sqlite3VdbeChangeP3(Vdbe *p, int addr, const char *zP3, int n){ 416 416 Op *pOp; 417 417 assert( p->magic==VDBE_MAGIC_INIT ); 418 418 if( p==0 || p->aOp==0 ){ 419 - freeP3(n, (void*)*(char**)&zP3); 419 + if (n != P3_KEYINFO) { 420 + freeP3(n, (void*)*(char**)&zP3); 421 + } 420 422 return; 421 423 } 422 424 if( addr<0 || addr>=p->nOp ){ 423 425 addr = p->nOp - 1; 424 426 if( addr<0 ) return; 425 427 } 426 428 pOp = &p->aOp[addr]; ................................................................................ 730 732 nStack*sizeof(p->aStack[0]) /* aStack */ 731 733 + nArg*sizeof(Mem*) /* apArg */ 732 734 + nVar*sizeof(Mem) /* aVar */ 733 735 + nVar*sizeof(char*) /* azVar */ 734 736 + nMem*sizeof(Mem) /* aMem */ 735 737 + nCursor*sizeof(Cursor*) /* apCsr */ 736 738 ); 737 - if( !sqlite3_malloc_failed ){ 739 + if( !sqlite3Tsd()->mallocFailed ){ 738 740 p->aMem = &p->aStack[nStack]; 739 741 p->nMem = nMem; 740 742 p->aVar = &p->aMem[nMem]; 741 743 p->nVar = nVar; 742 744 p->okVar = 0; 743 745 p->apArg = (Mem**)&p->aVar[nVar]; 744 746 p->azVar = (char**)&p->apArg[nArg]; ................................................................................ 880 882 ** the string is freed using sqliteFree() when the vdbe is finished with 881 883 ** it. Otherwise, N bytes of zName are copied. 882 884 */ 883 885 int sqlite3VdbeSetColName(Vdbe *p, int idx, const char *zName, int N){ 884 886 int rc; 885 887 Mem *pColName; 886 888 assert( idx<(2*p->nResColumn) ); 887 - if( sqlite3_malloc_failed ) return SQLITE_NOMEM; 889 + if( sqlite3Tsd()->mallocFailed ) return SQLITE_NOMEM; 888 890 assert( p->aColName!=0 ); 889 891 pColName = &(p->aColName[idx]); 890 892 if( N==P3_DYNAMIC || N==P3_STATIC ){ 891 893 rc = sqlite3VdbeMemSetStr(pColName, zName, -1, SQLITE_UTF8, SQLITE_STATIC); 892 894 }else{ 893 895 rc = sqlite3VdbeMemSetStr(pColName, zName, N, SQLITE_UTF8,SQLITE_TRANSIENT); 894 896 } ................................................................................ 1143 1145 ** lock contention, return SQLITE_BUSY. If SQLITE_BUSY is returned, it 1144 1146 ** means the close did not happen and needs to be repeated. 1145 1147 */ 1146 1148 int sqlite3VdbeHalt(Vdbe *p){ 1147 1149 sqlite3 *db = p->db; 1148 1150 int i; 1149 1151 int (*xFunc)(Btree *pBt) = 0; /* Function to call on each btree backend */ 1152 + 1153 + if( sqlite3Tsd()->mallocFailed ){ 1154 + p->rc = SQLITE_NOMEM; 1155 + } 1150 1156 1151 1157 if( p->magic!=VDBE_MAGIC_RUN ){ 1152 1158 /* Already halted. Nothing to do. */ 1153 1159 assert( p->magic==VDBE_MAGIC_HALT ); 1154 1160 return SQLITE_OK; 1155 1161 } 1156 1162 closeAllCursors(p); 1157 1163 checkActiveVdbeCnt(db); 1158 1164 if( p->pc<0 ){ 1159 1165 /* No commit or rollback needed if the program never started */ 1160 1166 }else if( db->autoCommit && db->activeVdbeCnt==1 ){ 1161 - if( p->rc==SQLITE_OK || p->errorAction==OE_Fail ){ 1167 + 1168 + if( p->rc==SQLITE_OK || (p->errorAction==OE_Fail && p->rc!=SQLITE_NOMEM)){ 1162 1169 /* The auto-commit flag is true, there are no other active queries 1163 1170 ** using this handle and the vdbe program was successful or hit an 1164 1171 ** 'OR FAIL' constraint. This means a commit is required. 1165 1172 */ 1166 1173 int rc = vdbeCommit(db); 1167 1174 if( rc==SQLITE_BUSY ){ 1168 1175 return SQLITE_BUSY; 1169 1176 }else if( rc!=SQLITE_OK ){ 1170 1177 p->rc = rc; 1171 1178 xFunc = sqlite3BtreeRollback; 1179 + }else{ 1180 + sqlite3CommitInternalChanges(db); 1172 1181 } 1173 1182 }else{ 1174 1183 xFunc = sqlite3BtreeRollback; 1175 1184 } 1176 1185 }else{ 1186 + 1187 + if( p->rc==SQLITE_NOMEM ){ 1188 + /* This loop does static analysis of the query to see which of the 1189 + ** following three categories it falls into: 1190 + ** 1191 + ** Read-only 1192 + ** Query with statement journal -> rollback statement 1193 + ** Query without statement journal -> rollback transaction 1194 + ** 1195 + ** We could do something more elegant than this static analysis (i.e. 1196 + ** store the type of query as part of the compliation phase), but 1197 + ** handling malloc() failure is a fairly obscure edge case so this is 1198 + ** probably easier. 1199 + ** 1200 + ** Todo: This means we always override the p->errorAction value for a 1201 + ** malloc() failure. Is there any other choice here though? 1202 + */ 1203 + int isReadOnly = 1; 1204 + int isStatement = 0; 1205 + assert(p->aOp || p->nOp==0); 1206 + for(i=0; i<p->nOp; i++){ 1207 + switch( p->aOp[i].opcode ){ 1208 + case OP_Transaction: 1209 + isReadOnly = 0; 1210 + break; 1211 + case OP_Statement: 1212 + isStatement = 1; 1213 + break; 1214 + } 1215 + } 1216 + if( (isReadOnly||isStatement) && p->errorAction!=OE_Rollback ){ 1217 + p->errorAction = OE_Abort; 1218 + }else{ 1219 + p->errorAction = OE_Rollback; 1220 + } 1221 + } 1222 + 1177 1223 if( p->rc==SQLITE_OK || p->errorAction==OE_Fail ){ 1178 1224 xFunc = sqlite3BtreeCommitStmt; 1179 1225 }else if( p->errorAction==OE_Abort ){ 1180 1226 xFunc = sqlite3BtreeRollbackStmt; 1181 1227 }else{ 1182 1228 xFunc = sqlite3BtreeRollback; 1183 1229 db->autoCommit = 1; ................................................................................ 1206 1252 }else{ 1207 1253 sqlite3VdbeSetChanges(db, 0); 1208 1254 } 1209 1255 p->nChange = 0; 1210 1256 } 1211 1257 1212 1258 /* Rollback or commit any schema changes that occurred. */ 1213 - if( p->rc!=SQLITE_OK ){ 1214 - sqlite3RollbackInternalChanges(db); 1215 - }else if( db->flags & SQLITE_InternChanges ){ 1216 - sqlite3CommitInternalChanges(db); 1259 + if( p->rc!=SQLITE_OK && db->flags&SQLITE_InternChanges ){ 1260 + sqlite3ResetInternalSchema(db, 0); 1261 + if( xFunc!=sqlite3BtreeRollback ){ 1262 + db->flags = (db->flags | SQLITE_InternChanges); 1263 + } 1217 1264 } 1218 1265 1219 1266 /* We have successfully halted and closed the VM. Record this fact. */ 1220 1267 if( p->pc>=0 ){ 1221 1268 db->activeVdbeCnt--; 1222 1269 } 1223 1270 p->magic = VDBE_MAGIC_HALT; ................................................................................ 1274 1321 1275 1322 /* Reclaim all memory used by the VDBE 1276 1323 */ 1277 1324 Cleanup(p); 1278 1325 1279 1326 /* Save profiling information from this VDBE run. 1280 1327 */ 1281 - assert( p->pTos<&p->aStack[p->pc<0?0:p->pc] || sqlite3_malloc_failed==1 ); 1328 + assert( p->pTos<&p->aStack[p->pc<0?0:p->pc] || !p->aStack ); 1282 1329 #ifdef VDBE_PROFILE 1283 1330 { 1284 1331 FILE *out = fopen("vdbe_profile.out", "a"); 1285 1332 if( out ){ 1286 1333 int i; 1287 1334 fprintf(out, "---- "); 1288 1335 for(i=0; i<p->nOp; i++){
Changes to src/where.c.
12 12 ** This module contains C code that generates VDBE code used to process 13 13 ** the WHERE clause of SQL statements. This module is reponsible for 14 14 ** generating the code that loops through a table looking for applicable 15 15 ** rows. Indices are selected and used to speed the search when doing 16 16 ** so is applicable. Because this module is responsible for selecting 17 17 ** indices, you might also think of this module as the "query optimizer". 18 18 ** 19 -** $Id: where.c,v 1.185 2005/11/26 14:24:41 drh Exp $ 19 +** $Id: where.c,v 1.186 2005/12/06 12:53:01 danielk1977 Exp $ 20 20 */ 21 21 #include "sqliteInt.h" 22 22 23 23 /* 24 24 ** The number of bits in a Bitmask. "BMS" means "BitMask Size". 25 25 */ 26 26 #define BMS (sizeof(Bitmask)*8) ................................................................................ 563 563 WhereTerm *pTerm = &pWC->a[idxTerm]; 564 564 Expr *pExpr = pTerm->pExpr; 565 565 Bitmask prereqLeft; 566 566 Bitmask prereqAll; 567 567 int nPattern; 568 568 int isComplete; 569 569 570 - if( sqlite3_malloc_failed ) return; 570 + if( sqlite3Tsd()->mallocFailed ) return; 571 571 prereqLeft = exprTableUsage(pMaskSet, pExpr->pLeft); 572 572 if( pExpr->op==TK_IN ){ 573 573 assert( pExpr->pRight==0 ); 574 574 pTerm->prereqRight = exprListTableUsage(pMaskSet, pExpr->pList) 575 575 | exprSelectTableUsage(pMaskSet, pExpr->pSelect); 576 576 }else{ 577 577 pTerm->prereqRight = exprTableUsage(pMaskSet, pExpr->pRight); ................................................................................ 1428 1428 whereClauseInit(&wc, pParse); 1429 1429 whereSplit(&wc, pWhere, TK_AND); 1430 1430 1431 1431 /* Allocate and initialize the WhereInfo structure that will become the 1432 1432 ** return value. 1433 1433 */ 1434 1434 pWInfo = sqliteMalloc( sizeof(WhereInfo) + pTabList->nSrc*sizeof(WhereLevel)); 1435 - if( sqlite3_malloc_failed ){ 1435 + if( sqlite3Tsd()->mallocFailed ){ 1436 1436 goto whereBeginNoMem; 1437 1437 } 1438 1438 pWInfo->pParse = pParse; 1439 1439 pWInfo->pTabList = pTabList; 1440 1440 pWInfo->iBreak = sqlite3VdbeMakeLabel(v); 1441 1441 1442 1442 /* Special case: a WHERE clause that is constant. Evaluate the ................................................................................ 1452 1452 ** want to analyze these virtual terms, so start analyzing at the end 1453 1453 ** and work forward so that the added virtual terms are never processed. 1454 1454 */ 1455 1455 for(i=0; i<pTabList->nSrc; i++){ 1456 1456 createMask(&maskSet, pTabList->a[i].iCursor); 1457 1457 } 1458 1458 exprAnalyzeAll(pTabList, &maskSet, &wc); 1459 - if( sqlite3_malloc_failed ){ 1459 + if( sqlite3Tsd()->mallocFailed ){ 1460 1460 goto whereBeginNoMem; 1461 1461 } 1462 1462 1463 1463 /* Chose the best index to use for each table in the FROM clause. 1464 1464 ** 1465 1465 ** This loop fills in the following fields: 1466 1466 **
Changes to test/malloc.test.
10 10 #*********************************************************************** 11 11 # This file attempts to check the library in an out-of-memory situation. 12 12 # When compiled with -DSQLITE_DEBUG=1, the SQLite library accepts a special 13 13 # command (sqlite_malloc_fail N) which causes the N-th malloc to fail. This 14 14 # special feature is used to see what happens in the library if a malloc 15 15 # were to really fail due to an out-of-memory situation. 16 16 # 17 -# $Id: malloc.test,v 1.24 2005/09/08 00:13:28 drh Exp $ 17 +# $Id: malloc.test,v 1.25 2005/12/06 12:53:01 danielk1977 Exp $ 18 18 19 19 set testdir [file dirname $argv0] 20 20 source $testdir/tester.tcl 21 21 22 22 # Only run these tests if memory debugging is turned on. 23 23 # 24 24 if {[info command sqlite_malloc_stat]==""} { 25 - puts "Skipping malloc tests: not compiled with -DSQLITE_DEBUG..." 25 + puts "Skipping malloc tests: not compiled with -DSQLITE_MEMDEBUG..." 26 26 finish_test 27 27 return 28 28 } 29 29 30 30 # Usage: do_malloc_test <test number> <options...> 31 31 # 32 32 # The first argument, <test number>, is an integer used to name the ................................................................................ 48 48 # to the -tclbody switch, followed by the SQL commands in any argument 49 49 # passed to the -sqlbody switch are executed. Each iteration the 50 50 # Nth call to sqliteMalloc() is made to fail, where N is increased 51 51 # each time the loop runs starting from 1. When all commands execute 52 52 # successfully, the loop ends. 53 53 # 54 54 proc do_malloc_test {tn args} { 55 + array unset ::mallocopts 55 56 array set ::mallocopts $args 56 57 57 58 set ::go 1 58 - for {set ::n 1} {$::go} {incr ::n} { 59 + for {set ::n 1} {$::go && $::n < 50000} {incr ::n} { 59 60 do_test malloc-$tn.$::n { 60 61 62 + # Remove all traces of database files test.db and test2.db from the files 63 + # system. Then open (empty database) "test.db" with the handle [db]. 64 + # 61 65 sqlite_malloc_fail 0 62 66 catch {db close} 63 67 catch {file delete -force test.db} 64 68 catch {file delete -force test.db-journal} 65 69 catch {file delete -force test2.db} 66 70 catch {file delete -force test2.db-journal} 67 71 set ::DB [sqlite3 db test.db] 68 72 73 + # Execute any -tclprep and -sqlprep scripts. 74 + # 69 75 if {[info exists ::mallocopts(-tclprep)]} { 70 76 eval $::mallocopts(-tclprep) 71 77 } 72 78 if {[info exists ::mallocopts(-sqlprep)]} { 73 79 execsql $::mallocopts(-sqlprep) 74 80 } 75 81 82 + # Now set the ${::n}th malloc() to fail and execute the -tclbody and 83 + # -sqlbody scripts. 84 + # 76 85 sqlite_malloc_fail $::n 77 86 set ::mallocbody {} 78 87 if {[info exists ::mallocopts(-tclbody)]} { 79 88 append ::mallocbody "$::mallocopts(-tclbody)\n" 80 89 } 81 90 if {[info exists ::mallocopts(-sqlbody)]} { 82 91 append ::mallocbody "db eval {$::mallocopts(-sqlbody)}" 83 92 } 84 - 85 93 set v [catch $::mallocbody msg] 86 94 87 95 set leftover [lindex [sqlite_malloc_stat] 2] 88 96 if {$leftover>0} { 89 97 if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"} 90 98 set ::go 0 91 99 set v {1 1}
Changes to test/malloc2.test.
7 7 # May you find forgiveness for yourself and forgive others. 8 8 # May you share freely, never taking more than you give. 9 9 # 10 10 #*********************************************************************** 11 11 # This file attempts to check that the library can recover from a malloc() 12 12 # failure when sqlite3_global_recover() is invoked. 13 13 # 14 -# $Id: malloc2.test,v 1.3 2005/06/06 14:45:43 drh Exp $ 14 +# $Id: malloc2.test,v 1.4 2005/12/06 12:53:01 danielk1977 Exp $ 15 15 16 16 set testdir [file dirname $argv0] 17 17 source $testdir/tester.tcl 18 18 19 19 # Only run these tests if memory debugging is turned on. 20 20 # 21 21 if {[info command sqlite_malloc_stat]==""} { ................................................................................ 83 83 if {[lindex [sqlite_malloc_stat] 2]>0} { 84 84 sqlite_malloc_fail -1 85 85 break 86 86 } 87 87 88 88 # Nothing should work now, because the allocator should refuse to 89 89 # allocate any memory. 90 + # 91 + # Update: SQLite now automatically recovers from a malloc() failure. 92 + # So the statement in the test below would work. 93 +if 0 { 90 94 do_test malloc2-$tn.$::n.3 { 91 95 catchsql {SELECT 'nothing should work'} 92 96 } {1 {out of memory}} 97 +} 93 98 94 99 # Recover from the malloc failure. 100 + # 101 + # Update: The new malloc() failure handling means that a transaction may 102 + # still be active even if a malloc() has failed. But when these tests were 103 + # written this was not the case. So do a manual ROLLBACK here so that the 104 + # tests pass. 95 105 do_test malloc2-$tn.$::n.4 { 96 - if 0 { 97 - db close 98 - sqlite_malloc_fail -1 99 - set ::DB [sqlite3 db test.db] 100 - set dummy SQLITE_OK 101 - } else { 102 - sqlite3_global_recover 106 + sqlite3_global_recover 107 + catch { 108 + execsql { 109 + ROLLBACK; 110 + } 103 111 } 104 - } {SQLITE_OK} 112 + expr 0 113 + } {0} 105 114 106 115 # Checksum the database. 107 116 do_test malloc2-$tn.$::n.5 { 108 117 cksum db 109 118 } $sum 110 119 111 120 integrity_check malloc2-$tn.$::n.6 ................................................................................ 260 269 sqlite db1 test.db 261 270 db1 close 262 271 } {} 263 272 264 273 ######################################################################## 265 274 # Check that if a statement is active sqlite3_global_recover doesn't reset 266 275 # the sqlite3_malloc_failed variable. 267 -do_test malloc2-6.1 { 268 - set ::STMT [sqlite3_prepare $::DB {SELECT * FROM def} -1 DUMMY] 269 - sqlite3_step $::STMT 270 -} {SQLITE_ROW} 271 -do_test malloc2-6.2 { 272 - sqlite3 db1 test.db 273 - sqlite_malloc_fail 100 274 - catchsql { 275 - SELECT * FROM def; 276 - } db1 277 -} {1 {out of memory}} 278 -do_test malloc2-6.3 { 279 - sqlite3_global_recover 280 -} {SQLITE_BUSY} 281 -do_test malloc2-6.4 { 282 - catchsql { 283 - SELECT 'hello'; 284 - } 285 -} {1 {out of memory}} 286 -do_test malloc2-6.5 { 287 - sqlite3_reset $::STMT 288 -} {SQLITE_OK} 289 -do_test malloc2-6.6 { 290 - sqlite3_global_recover 291 -} {SQLITE_OK} 292 -do_test malloc2-6.7 { 293 - catchsql { 294 - SELECT 'hello'; 295 - } 296 -} {0 hello} 297 -do_test malloc2-6.8 { 298 - sqlite3_step $::STMT 299 -} {SQLITE_ERROR} 300 -do_test malloc2-6.9 { 301 - sqlite3_finalize $::STMT 302 -} {SQLITE_SCHEMA} 303 -do_test malloc2-6.10 { 304 - db1 close 305 -} {} 276 +# 277 +# Update: There is now no sqlite3_malloc_failed variable, so these tests 278 +# are not run. 279 +# 280 +# do_test malloc2-6.1 { 281 +# set ::STMT [sqlite3_prepare $::DB {SELECT * FROM def} -1 DUMMY] 282 +# sqlite3_step $::STMT 283 +# } {SQLITE_ROW} 284 +# do_test malloc2-6.2 { 285 +# sqlite3 db1 test.db 286 +# sqlite_malloc_fail 100 287 +# catchsql { 288 +# SELECT * FROM def; 289 +# } db1 290 +# } {1 {out of memory}} 291 +# do_test malloc2-6.3 { 292 +# sqlite3_global_recover 293 +# } {SQLITE_BUSY} 294 +# do_test malloc2-6.4 { 295 +# catchsql { 296 +# SELECT 'hello'; 297 +# } 298 +# } {1 {out of memory}} 299 +# do_test malloc2-6.5 { 300 +# sqlite3_reset $::STMT 301 +# } {SQLITE_OK} 302 +# do_test malloc2-6.6 { 303 +# sqlite3_global_recover 304 +# } {SQLITE_OK} 305 +# do_test malloc2-6.7 { 306 +# catchsql { 307 +# SELECT 'hello'; 308 +# } 309 +# } {0 hello} 310 +# do_test malloc2-6.8 { 311 +# sqlite3_step $::STMT 312 +# } {SQLITE_ERROR} 313 +# do_test malloc2-6.9 { 314 +# sqlite3_finalize $::STMT 315 +# } {SQLITE_SCHEMA} 316 +# do_test malloc2-6.10 { 317 +# db1 close 318 +# } {} 306 319 307 320 ######################################################################## 308 321 # Check that if an in-memory database is being used it is not possible 309 322 # to recover from a malloc() failure. 310 -ifcapable memorydb { 311 - do_test malloc2-7.1 { 312 - sqlite3 db1 :memory: 313 - list 314 - } {} 315 - do_test malloc2-7.2 { 316 - sqlite_malloc_fail 100 317 - catchsql { 318 - SELECT * FROM def; 319 - } 320 - } {1 {out of memory}} 321 - do_test malloc2-7.3 { 322 - sqlite3_global_recover 323 - } {SQLITE_ERROR} 324 - do_test malloc2-7.4 { 325 - catchsql { 326 - SELECT 'hello'; 327 - } 328 - } {1 {out of memory}} 329 - do_test malloc2-7.5 { 330 - db1 close 331 - } {} 332 - do_test malloc2-7.6 { 333 - sqlite3_global_recover 334 - } {SQLITE_OK} 335 - do_test malloc2-7.7 { 336 - catchsql { 337 - SELECT 'hello'; 338 - } 339 - } {0 hello} 340 -} 323 +# 324 +# Update: An in-memory database can now survive a malloc() failure, so these 325 +# tests are not run. 326 +# 327 +# ifcapable memorydb { 328 +# do_test malloc2-7.1 { 329 +# sqlite3 db1 :memory: 330 +# list 331 +# } {} 332 +# do_test malloc2-7.2 { 333 +# sqlite_malloc_fail 100 334 +# catchsql { 335 +# SELECT * FROM def; 336 +# } 337 +# } {1 {out of memory}} 338 +# do_test malloc2-7.3 { 339 +# sqlite3_global_recover 340 +# } {SQLITE_ERROR} 341 +# do_test malloc2-7.4 { 342 +# catchsql { 343 +# SELECT 'hello'; 344 +# } 345 +# } {1 {out of memory}} 346 +# do_test malloc2-7.5 { 347 +# db1 close 348 +# } {} 349 +# do_test malloc2-7.6 { 350 +# sqlite3_global_recover 351 +# } {SQLITE_OK} 352 +# do_test malloc2-7.7 { 353 +# catchsql { 354 +# SELECT 'hello'; 355 +# } 356 +# } {0 hello} 357 +# } 341 358 342 359 finish_test
Changes to test/schema.test.
9 9 # 10 10 #*********************************************************************** 11 11 # This file implements regression tests for SQLite library. 12 12 # 13 13 # This file tests the various conditions under which an SQLITE_SCHEMA 14 14 # error should be returned. 15 15 # 16 -# $Id: schema.test,v 1.4 2005/01/29 01:54:18 danielk1977 Exp $ 16 +# $Id: schema.test,v 1.5 2005/12/06 12:53:01 danielk1977 Exp $ 17 17 18 18 #--------------------------------------------------------------------- 19 19 # When any of the following types of SQL statements or actions are 20 20 # executed, all pre-compiled statements are invalidated. An attempt 21 21 # to execute an invalidated statement always returns SQLITE_SCHEMA. 22 22 # 23 23 # CREATE/DROP TABLE...................................schema-1.* ................................................................................ 25 25 # CREATE/DROP TRIGGER.................................schema-3.* 26 26 # CREATE/DROP INDEX...................................schema-4.* 27 27 # DETACH..............................................schema-5.* 28 28 # Deleting a user-function............................schema-6.* 29 29 # Deleting a collation sequence.......................schema-7.* 30 30 # Setting or changing the authorization function......schema-8.* 31 31 # 32 -# Note: Test cases schema-6.* are missing right now. 33 -# 34 32 # Test cases schema-9.* and schema-10.* test some specific bugs 35 33 # that came up during development. 36 34 # 37 35 # Test cases schema-11.* test that it is impossible to delete or 38 36 # change a collation sequence or user-function while SQL statements 39 37 # are executing. Adding new collations or functions is allowed. 40 38 # 41 -# Note: Test cases schema-11.* are also missing right now. 42 39 43 40 set testdir [file dirname $argv0] 44 41 source $testdir/tester.tcl 45 42 46 43 do_test schema-1.1 { 47 44 set ::STMT [sqlite3_prepare $::DB {SELECT * FROM sqlite_master} -1 TAIL] 48 45 execsql {
Changes to tool/memleak3.tcl.
194 194 195 195 foreach key [array names ::memmap] { 196 196 set stack [lindex $::memmap($key) 2] 197 197 set bytes [lindex $::memmap($key) 0] 198 198 lappend summarymap($stack) $bytes 199 199 } 200 200 201 + set sorted [list] 201 202 foreach stack [array names summarymap] { 202 203 set allocs $summarymap($stack) 203 204 set sum 0 204 205 foreach a $allocs { 205 206 incr sum $a 206 207 } 207 208 lappend sorted [list $sum $stack]