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Overview
| Comment: | Fix a segfault that can occur in the RowSet object following a malloc failure. (CVS 5978) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cb0f1658d3db7ccf80843d66fa85af8d |
| User & Date: | drh 2008-12-04 22:17:56 |
Context
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2008-12-05
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| 00:00 | Expand table.* properly on a USING or a NATURAL join. Ticket #3522. (CVS 5979) check-in: 06d206ef user: drh tags: trunk | |
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2008-12-04
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| 22:17 | Fix a segfault that can occur in the RowSet object following a malloc failure. (CVS 5978) check-in: cb0f1658 user: drh tags: trunk | |
| 20:40 | Replace the VDBE Fifo object with the new RowSet object. (CVS 5977) check-in: 39a0750b user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.790 2008/12/04 20:40:10 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** The following global variable is incremented every time a cursor ................................................................................ assert( pOp->p1>0 && pOp->p1<=p->nMem ); pIdx = &p->aMem[pOp->p1]; assert( pOp->p2>0 && pOp->p2<=p->nMem ); pVal = &p->aMem[pOp->p2]; assert( (pVal->flags & MEM_Int)!=0 ); if( (pIdx->flags & MEM_RowSet)==0 ){ sqlite3VdbeMemSetRowSet(pIdx); } sqlite3RowSetInsert(pIdx->u.pRowSet, pVal->u.i); break; } /* Opcode: RowSetRead P1 P2 P3 * * ** |
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.791 2008/12/04 22:17:56 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** The following global variable is incremented every time a cursor ................................................................................ assert( pOp->p1>0 && pOp->p1<=p->nMem ); pIdx = &p->aMem[pOp->p1]; assert( pOp->p2>0 && pOp->p2<=p->nMem ); pVal = &p->aMem[pOp->p2]; assert( (pVal->flags & MEM_Int)!=0 ); if( (pIdx->flags & MEM_RowSet)==0 ){ sqlite3VdbeMemSetRowSet(pIdx); if( (pIdx->flags & MEM_RowSet)==0 ) goto no_mem; } sqlite3RowSetInsert(pIdx->u.pRowSet, pVal->u.i); break; } /* Opcode: RowSetRead P1 P2 P3 * * ** |
Changes to src/vdbemem.c.
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************************************************************************* ** ** This file contains code use to manipulate "Mem" structure. A "Mem" ** stores a single value in the VDBE. Mem is an opaque structure visible ** only within the VDBE. Interface routines refer to a Mem using the ** name sqlite_value ** ** $Id: vdbemem.c,v 1.127 2008/12/04 20:40:10 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** Call sqlite3VdbeMemExpandBlob() on the supplied value (type Mem*) ................................................................................ assert( db!=0 ); if( pMem->flags & MEM_RowSet ){ sqlite3RowSetClear(pMem->u.pRowSet); }else{ sqlite3VdbeMemRelease(pMem); pMem->zMalloc = sqlite3DbMallocRaw(db, 32); } if( !db->mallocFailed ){ assert( pMem->zMalloc ); pMem->u.pRowSet = sqlite3RowSetInit(db, pMem->zMalloc, sqlite3DbMallocSize(db, pMem->zMalloc)); assert( pMem->u.pRowSet!=0 ); pMem->flags = MEM_RowSet|MEM_Dyn; } } /* ** Return true if the Mem object contains a TEXT or BLOB that is ** too large - whose size exceeds SQLITE_MAX_LENGTH. */ |
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************************************************************************* ** ** This file contains code use to manipulate "Mem" structure. A "Mem" ** stores a single value in the VDBE. Mem is an opaque structure visible ** only within the VDBE. Interface routines refer to a Mem using the ** name sqlite_value ** ** $Id: vdbemem.c,v 1.128 2008/12/04 22:17:56 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> #include "vdbeInt.h" /* ** Call sqlite3VdbeMemExpandBlob() on the supplied value (type Mem*) ................................................................................ assert( db!=0 ); if( pMem->flags & MEM_RowSet ){ sqlite3RowSetClear(pMem->u.pRowSet); }else{ sqlite3VdbeMemRelease(pMem); pMem->zMalloc = sqlite3DbMallocRaw(db, 32); } if( db->mallocFailed ){ pMem->flags = MEM_Null; }else{ assert( pMem->zMalloc ); pMem->u.pRowSet = sqlite3RowSetInit(db, pMem->zMalloc, sqlite3DbMallocSize(db, pMem->zMalloc)); assert( pMem->u.pRowSet!=0 ); pMem->flags = MEM_RowSet; } } /* ** Return true if the Mem object contains a TEXT or BLOB that is ** too large - whose size exceeds SQLITE_MAX_LENGTH. */ |