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Overview
Comment:Use sqliteOsFileExists() in the debugging hook in vdbe.c, instead of access(). Ticket #341. (CVS 1014)
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SHA1: 7d3405b95bae74e0c476a7bdf708ca518723eaf7
User & Date: drh 2003-06-07 11:33:45.000
Context
2003-06-08
08:36
Documented SQL fns IFNULL() and NULLIF(). (CVS 1015) (check-in: 190252fee0 user: jplyon tags: trunk)
2003-06-07
11:33
Use sqliteOsFileExists() in the debugging hook in vdbe.c, instead of access(). Ticket #341. (CVS 1014) (check-in: 7d3405b95b user: drh tags: trunk)
11:29
Do not assume that a pointer can fit in a long inside the printf() code. Ticket #342. (CVS 1013) (check-in: 5dad7c05e9 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
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 1.226 2003/06/04 16:24:40 drh Exp $
*/
#include "sqliteInt.h"

#include <ctype.h>

/*
** The makefile scans this source file and creates the following
** array of string constants which are the names of all VDBE opcodes.
** This array is defined in a separate source code file named opcode.c
** which is automatically generated by the makefile.








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>








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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 1.227 2003/06/07 11:33:45 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** The makefile scans this source file and creates the following
** array of string constants which are the names of all VDBE opcodes.
** This array is defined in a separate source code file named opcode.c
** which is automatically generated by the makefile.
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void sqliteVdbeMakeReady(
  Vdbe *p,                       /* The VDBE */
  sqlite_callback xCallback,     /* Result callback */
  void *pCallbackArg,            /* 1st argument to xCallback() */
  int isExplain                  /* True if the EXPLAIN keywords is present */
){
  int n;
#ifdef MEMORY_DEBUG
  extern int access(const char*,int);
#endif

  assert( p!=0 );
  assert( p->aStack==0 );
  assert( p->magic==VDBE_MAGIC_INIT );

  /* Add a HALT instruction to the very end of the program.
  */








<
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<








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void sqliteVdbeMakeReady(
  Vdbe *p,                       /* The VDBE */
  sqlite_callback xCallback,     /* Result callback */
  void *pCallbackArg,            /* 1st argument to xCallback() */
  int isExplain                  /* True if the EXPLAIN keywords is present */
){
  int n;




  assert( p!=0 );
  assert( p->aStack==0 );
  assert( p->magic==VDBE_MAGIC_INIT );

  /* Add a HALT instruction to the very end of the program.
  */
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  p->aStack = sqliteMalloc( n*(sizeof(p->aStack[0]) + 2*sizeof(char*)) );
  p->zStack = (char**)&p->aStack[n];
  p->azColName = (char**)&p->zStack[n];

  sqliteHashInit(&p->agg.hash, SQLITE_HASH_BINARY, 0);
  p->agg.pSearch = 0;
#ifdef MEMORY_DEBUG
  if( access("vdbe_trace",0)==0 ){
    p->trace = stdout;
  }
#endif
  p->tos = -1;
  p->pc = 0;
  p->rc = SQLITE_OK;
  p->uniqueCnt = 0;








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  p->aStack = sqliteMalloc( n*(sizeof(p->aStack[0]) + 2*sizeof(char*)) );
  p->zStack = (char**)&p->aStack[n];
  p->azColName = (char**)&p->zStack[n];

  sqliteHashInit(&p->agg.hash, SQLITE_HASH_BINARY, 0);
  p->agg.pSearch = 0;
#ifdef MEMORY_DEBUG
  if( sqliteOsFileExists("vdbe_trace") ){
    p->trace = stdout;
  }
#endif
  p->tos = -1;
  p->pc = 0;
  p->rc = SQLITE_OK;
  p->uniqueCnt = 0;
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