SQLite: Check-in [cec4eba1]

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Overview

Comment:	Fix a memory leak that can occur following a malloc failure. (CVS 5339)
Downloads:	Tarball \| ZIP archive \| SQL archive
Timelines:	family \| ancestors \| descendants \| both \| trunk
Files:	files \| file ages \| folders
SHA1:	cec4eba1a105396c5fd5d2b664456f6d6be3f215
User & Date:	danielk1977 2008-07-02 16:10:46

Context

2008-07-03
19:53		fts3 functions for testing scripts. These are a first step towards being able to write test script which verify that fts3 is internally building indices in the expected way. Both new functions are only defined if fts3.c is compiled with SQLITE_TEST defined, as when building testfixture. These functions are not intended to be part of the exposed fts3 API. dump_terms() generates a TEXT result of all the terms in the index (or a specified segment), sorted and joined with spaces. dump_doclist() generates a TEXT representation of the doclist associated with a given term in the index (or a specified segment). (CVS 5340) (check-in: a48e3d95 user: shess tags: trunk)
2008-07-02
16:10		Fix a memory leak that can occur following a malloc failure. (CVS 5339) (check-in: cec4eba1 user: danielk1977 tags: trunk)
13:13		Call the authorizer callback the same number of times whether or not the query flattening occurs. (CVS 5338) (check-in: 8b88b64b user: danielk1977 tags: trunk)

Changes

Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/select.c.

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.446 2008/07/02 13:13:52 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.
................................................................................
  KeyInfo *pKeyInfo,      /* For comparing with previous entry */
  int p4type,             /* The p4 type for pKeyInfo */
  int iBreak              /* Jump here if we hit the LIMIT */
){
  Vdbe *v = pParse->pVdbe;
  int iContinue;
  int addr;
  if( pParse->db->mallocFailed ) return 0;

  addr = sqlite3VdbeCurrentAddr(v);
  iContinue = sqlite3VdbeMakeLabel(v);

  /* Suppress duplicates for UNION, EXCEPT, and INTERSECT 
  */
  if( regPrev ){
................................................................................
    j2 = sqlite3VdbeAddOp4(v, OP_Compare, pIn->iMem, regPrev+1, pIn->nMem,
                              (char*)pKeyInfo, p4type);
    sqlite3VdbeAddOp3(v, OP_Jump, j2+2, iContinue, j2+2);
    sqlite3VdbeJumpHere(v, j1);
    sqlite3ExprCodeCopy(pParse, pIn->iMem, regPrev+1, pIn->nMem);
    sqlite3VdbeAddOp2(v, OP_Integer, 1, regPrev);
  }


  /* Suppress the the first OFFSET entries if there is an OFFSET clause
  */
  codeOffset(v, p, iContinue);

  switch( pDest->eDest ){
    /* Store the result as data using a unique key.

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.447 2008/07/02 16:10:46 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.
................................................................................
  KeyInfo *pKeyInfo,      /* For comparing with previous entry */
  int p4type,             /* The p4 type for pKeyInfo */
  int iBreak              /* Jump here if we hit the LIMIT */
){
  Vdbe *v = pParse->pVdbe;
  int iContinue;
  int addr;


  addr = sqlite3VdbeCurrentAddr(v);
  iContinue = sqlite3VdbeMakeLabel(v);

  /* Suppress duplicates for UNION, EXCEPT, and INTERSECT 
  */
  if( regPrev ){
................................................................................
    j2 = sqlite3VdbeAddOp4(v, OP_Compare, pIn->iMem, regPrev+1, pIn->nMem,
                              (char*)pKeyInfo, p4type);
    sqlite3VdbeAddOp3(v, OP_Jump, j2+2, iContinue, j2+2);
    sqlite3VdbeJumpHere(v, j1);
    sqlite3ExprCodeCopy(pParse, pIn->iMem, regPrev+1, pIn->nMem);
    sqlite3VdbeAddOp2(v, OP_Integer, 1, regPrev);
  }
  if( pParse->db->mallocFailed ) return 0;

  /* Suppress the the first OFFSET entries if there is an OFFSET clause
  */
  codeOffset(v, p, iContinue);

  switch( pDest->eDest ){
    /* Store the result as data using a unique key.