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Overview
| Comment: | Simplify the implementation of the columnName() function in vdbeapi.c. This is a code cleanup only - no behavior changes. (CVS 6474) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 0628f5864f8cc035b41bbe644bd8ec8f |
| User & Date: | drh 2009-04-08 23:05:29 |
Context
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2009-04-09
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| 01:23 | Enhance sqlite3_shutdown() so that it automatically invokes sqlite3_reset_auto_extension(). This is a harmless no-op if applications are already calling sqlite3_reset_auto_extension() prior to sqlite3_shutdown(). And it prevents possible memory corruption if they do not. So it works either way. Most of the changes are to the test cases. (CVS 6475) check-in: 0c41f7cf user: drh tags: trunk | |
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2009-04-08
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| 23:05 | Simplify the implementation of the columnName() function in vdbeapi.c. This is a code cleanup only - no behavior changes. (CVS 6474) check-in: 0628f586 user: drh tags: trunk | |
| 23:04 | Add an assert() to the implementation of count(*) that checks the correct operation of the sqlite3_aggregate_count() function. (CVS 6473) check-in: f322be38 user: drh tags: trunk | |
Changes
Changes to src/vdbeapi.c.
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** May you share freely, never taking more than you give. ** ************************************************************************* ** ** This file contains code use to implement APIs that are part of the ** VDBE. ** ** $Id: vdbeapi.c,v 1.157 2009/04/08 15:45:32 drh Exp $ */ #include "sqliteInt.h" #include "vdbeInt.h" #if 0 && defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) /* ** The following structure contains pointers to the end points of a ................................................................................ int N, const void *(*xFunc)(Mem*), int useType ){ const void *ret = 0; Vdbe *p = (Vdbe *)pStmt; int n; if( p!=0 ){ n = sqlite3_column_count(pStmt); if( N<n && N>=0 ){ N += useType*n; sqlite3_mutex_enter(p->db->mutex); ret = xFunc(&p->aColName[N]); /* A malloc may have failed inside of the xFunc() call. If this ** is the case, clear the mallocFailed flag and return NULL. */ if( p->db && p->db->mallocFailed ){ p->db->mallocFailed = 0; ret = 0; } sqlite3_mutex_leave(p->db->mutex); } } return ret; } /* ** Return the name of the Nth column of the result set returned by SQL |
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** May you share freely, never taking more than you give. ** ************************************************************************* ** ** This file contains code use to implement APIs that are part of the ** VDBE. ** ** $Id: vdbeapi.c,v 1.158 2009/04/08 23:05:29 drh Exp $ */ #include "sqliteInt.h" #include "vdbeInt.h" #if 0 && defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) /* ** The following structure contains pointers to the end points of a ................................................................................ int N, const void *(*xFunc)(Mem*), int useType ){ const void *ret = 0; Vdbe *p = (Vdbe *)pStmt; int n; sqlite3 *db = p->db; if( p!=0 ){ assert( db!=0 ); n = sqlite3_column_count(pStmt); if( N<n && N>=0 ){ N += useType*n; sqlite3_mutex_enter(db->mutex); assert( db->mallocFailed==0 ); ret = xFunc(&p->aColName[N]); /* A malloc may have failed inside of the xFunc() call. If this ** is the case, clear the mallocFailed flag and return NULL. */ if( db->mallocFailed ){ db->mallocFailed = 0; ret = 0; } sqlite3_mutex_leave(db->mutex); } } return ret; } /* ** Return the name of the Nth column of the result set returned by SQL |