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Comment:Read the sqlite3_vtab.zErrMsg after each call to a virtual table method and transfer any error into the database connection. Fix the fts2.test and fts3.test scripts to that they return silently rather than failing the test sequence if the appropriate FTS implementation is unavailable. (CVS 5463)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: e2c6771d44f1b4fee16ef90e91c3498be2a7d2b1
User & Date: drh 2008-07-23 18:17:32
Context
2008-07-23
18:25
Clarify in the documentation that the database connection pointer to sqlite3_next_stmt() must not be NULL. Ticket #3244. (CVS 5464) (check-in: a7d64e86 user: drh tags: trunk)
18:17
Read the sqlite3_vtab.zErrMsg after each call to a virtual table method and transfer any error into the database connection. Fix the fts2.test and fts3.test scripts to that they return silently rather than failing the test sequence if the appropriate FTS implementation is unavailable. (CVS 5463) (check-in: e2c6771d user: drh tags: trunk)
15:40
Update requirements derivation information in sqlite.h.in. (CVS 5462) (check-in: d6202907 user: drh tags: trunk)
Changes
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Changes to src/sqliteInt.h. 

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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.742 2008/07/12 14:52:20 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if we're using the
** autoconf-based build
................................................................................
#endif

#ifdef SQLITE_OMIT_VIRTUALTABLE
#  define sqlite3VtabClear(X)
#  define sqlite3VtabSync(X,Y) (Y)
#  define sqlite3VtabRollback(X)
#  define sqlite3VtabCommit(X)

#else
   void sqlite3VtabClear(Table*);
   int sqlite3VtabSync(sqlite3 *db, int rc);
   int sqlite3VtabRollback(sqlite3 *db);
   int sqlite3VtabCommit(sqlite3 *db);

#endif
void sqlite3VtabMakeWritable(Parse*,Table*);
void sqlite3VtabLock(sqlite3_vtab*);
void sqlite3VtabUnlock(sqlite3*, sqlite3_vtab*);
void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*);
void sqlite3VtabFinishParse(Parse*, Token*);
void sqlite3VtabArgInit(Parse*);








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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.743 2008/07/23 18:17:32 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_

/*
** Include the configuration header output by 'configure' if we're using the
** autoconf-based build
................................................................................
#endif

#ifdef SQLITE_OMIT_VIRTUALTABLE
#  define sqlite3VtabClear(X)
#  define sqlite3VtabSync(X,Y) (Y)
#  define sqlite3VtabRollback(X)
#  define sqlite3VtabCommit(X)
#  define sqlite3VtabTransferError(A,B,C)
#else
   void sqlite3VtabClear(Table*);
   int sqlite3VtabSync(sqlite3 *db, int rc);
   int sqlite3VtabRollback(sqlite3 *db);
   int sqlite3VtabCommit(sqlite3 *db);
   void sqlite3VtabTransferError(sqlite3 *db, int, sqlite3_vtab*);
#endif
void sqlite3VtabMakeWritable(Parse*,Table*);
void sqlite3VtabLock(sqlite3_vtab*);
void sqlite3VtabUnlock(sqlite3*, sqlite3_vtab*);
void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*);
void sqlite3VtabFinishParse(Parse*, Token*);
void sqlite3VtabArgInit(Parse*);

Changes to src/test8.c. 

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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the virtual table interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test8.c,v 1.67 2008/07/07 14:50:14 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>

#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
      sqlite3_finalize(pStmt);
    }
  }

  if( pRowid && rc==SQLITE_OK ){
    *pRowid = sqlite3_last_insert_rowid(db);
  }




  return rc;
}

/*
** xBegin, xSync, xCommit and xRollback callbacks for echo module
** virtual tables. Do nothing other than add the name of the callback








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**    May you share freely, never taking more than you give.
**
*************************************************************************
** Code for testing the virtual table interfaces.  This code
** is not included in the SQLite library.  It is used for automated
** testing of the SQLite library.
**
** $Id: test8.c,v 1.68 2008/07/23 18:17:32 drh Exp $
*/
#include "sqliteInt.h"
#include "tcl.h"
#include <stdlib.h>
#include <string.h>

#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
      sqlite3_finalize(pStmt);
    }
  }

  if( pRowid && rc==SQLITE_OK ){
    *pRowid = sqlite3_last_insert_rowid(db);
  }
  if( rc!=SQLITE_OK ){
    tab->zErrMsg = sqlite3_mprintf("echo-vtab-error: %s", sqlite3_errmsg(db));
  }

  return rc;
}

/*
** xBegin, xSync, xCommit and xRollback callbacks for echo module
** virtual tables. Do nothing other than add the name of the callback

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 1.761 2008/07/11 21:02:54 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
** The following global variable is incremented every time a cursor
................................................................................

  sqlite3_vtab *pVtab = pOp->p4.pVtab;
  sqlite3_module *pModule = (sqlite3_module *)pVtab->pModule;

  assert(pVtab && pModule);
  if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
  rc = pModule->xOpen(pVtab, &pVtabCursor);

  if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;
  if( SQLITE_OK==rc ){
    /* Initialize sqlite3_vtab_cursor base class */
    pVtabCursor->pVtab = pVtab;

    /* Initialise vdbe cursor object */
    pCur = allocateCursor(p, pOp->p1, &pOp[-1], -1, 0);
................................................................................
*/
case OP_VFilter: {   /* jump */
  int nArg;
  int iQuery;
  const sqlite3_module *pModule;
  Mem *pQuery = &p->aMem[pOp->p3];
  Mem *pArgc = &pQuery[1];



  Cursor *pCur = p->apCsr[pOp->p1];

  REGISTER_TRACE(pOp->p3, pQuery);
  assert( pCur->pVtabCursor );
  pModule = pCur->pVtabCursor->pVtab->pModule;



  /* Grab the index number and argc parameters */
  assert( (pQuery->flags&MEM_Int)!=0 && pArgc->flags==MEM_Int );
  nArg = pArgc->u.i;
  iQuery = pQuery->u.i;

  /* Invoke the xFilter method */
................................................................................
    for(i = 0; i<nArg; i++){
      apArg[i] = &pArgc[i+1];
      storeTypeInfo(apArg[i], 0);
    }

    if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
    p->inVtabMethod = 1;
    rc = pModule->xFilter(pCur->pVtabCursor, iQuery, pOp->p4.z, nArg, apArg);
    p->inVtabMethod = 0;
    if( rc==SQLITE_OK ){
      res = pModule->xEof(pCur->pVtabCursor);
    }
    if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;

    if( res ){
      pc = pOp->p2 - 1;
    }
  }
................................................................................

  Stringify(pName, encoding);

  if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
  sqlite3VtabLock(pVtab);
  rc = pVtab->pModule->xRename(pVtab, pName->z);
  sqlite3VtabUnlock(db, pVtab);

  if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;

  break;
}
#endif

#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
      apArg[i] = pX;
      pX++;
    }
    if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
    sqlite3VtabLock(pVtab);
    rc = pModule->xUpdate(pVtab, nArg, apArg, &rowid);
    sqlite3VtabUnlock(db, pVtab);

    if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;
    if( pOp->p1 && rc==SQLITE_OK ){
      assert( nArg>1 && apArg[0] && (apArg[0]->flags&MEM_Null) );
      db->lastRowid = rowid;
    }
    p->nChange++;
  }








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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 1.762 2008/07/23 18:17:32 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
** The following global variable is incremented every time a cursor
................................................................................

  sqlite3_vtab *pVtab = pOp->p4.pVtab;
  sqlite3_module *pModule = (sqlite3_module *)pVtab->pModule;

  assert(pVtab && pModule);
  if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
  rc = pModule->xOpen(pVtab, &pVtabCursor);
  sqlite3VtabTransferError(db, rc, pVtab);
  if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;
  if( SQLITE_OK==rc ){
    /* Initialize sqlite3_vtab_cursor base class */
    pVtabCursor->pVtab = pVtab;

    /* Initialise vdbe cursor object */
    pCur = allocateCursor(p, pOp->p1, &pOp[-1], -1, 0);
................................................................................
*/
case OP_VFilter: {   /* jump */
  int nArg;
  int iQuery;
  const sqlite3_module *pModule;
  Mem *pQuery = &p->aMem[pOp->p3];
  Mem *pArgc = &pQuery[1];
  sqlite3_vtab_cursor *pVtabCursor;
  sqlite3_vtab *pVtab;

  Cursor *pCur = p->apCsr[pOp->p1];

  REGISTER_TRACE(pOp->p3, pQuery);
  assert( pCur->pVtabCursor );
  pVtabCursor = pCur->pVtabCursor;
  pVtab = pVtabCursor->pVtab;
  pModule = pVtab->pModule;

  /* Grab the index number and argc parameters */
  assert( (pQuery->flags&MEM_Int)!=0 && pArgc->flags==MEM_Int );
  nArg = pArgc->u.i;
  iQuery = pQuery->u.i;

  /* Invoke the xFilter method */
................................................................................
    for(i = 0; i<nArg; i++){
      apArg[i] = &pArgc[i+1];
      storeTypeInfo(apArg[i], 0);
    }

    if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
    p->inVtabMethod = 1;
    rc = pModule->xFilter(pVtabCursor, iQuery, pOp->p4.z, nArg, apArg);
    p->inVtabMethod = 0;
    if( rc==SQLITE_OK ){
      res = pModule->xEof(pVtabCursor);
    }
    if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;

    if( res ){
      pc = pOp->p2 - 1;
    }
  }
................................................................................

  Stringify(pName, encoding);

  if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
  sqlite3VtabLock(pVtab);
  rc = pVtab->pModule->xRename(pVtab, pName->z);
  sqlite3VtabUnlock(db, pVtab);
  sqlite3VtabTransferError(db, rc, pVtab);
  if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;

  break;
}
#endif

#ifndef SQLITE_OMIT_VIRTUALTABLE
................................................................................
      apArg[i] = pX;
      pX++;
    }
    if( sqlite3SafetyOff(db) ) goto abort_due_to_misuse;
    sqlite3VtabLock(pVtab);
    rc = pModule->xUpdate(pVtab, nArg, apArg, &rowid);
    sqlite3VtabUnlock(db, pVtab);
    sqlite3VtabTransferError(db, rc, pVtab);
    if( sqlite3SafetyOn(db) ) goto abort_due_to_misuse;
    if( pOp->p1 && rc==SQLITE_OK ){
      assert( nArg>1 && apArg[0] && (apArg[0]->flags&MEM_Null) );
      db->lastRowid = rowid;
    }
    p->nChange++;
  }

Changes to src/vtab.c. 

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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to help implement virtual tables.
**
** $Id: vtab.c,v 1.70 2008/06/23 17:44:19 danielk1977 Exp $
*/
#ifndef SQLITE_OMIT_VIRTUALTABLE
#include "sqliteInt.h"

static int createModule(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
................................................................................
      if( db->aVTrans[i]==pVtab ){
        return SQLITE_OK;
      }
    }

    /* Invoke the xBegin method */
    rc = pModule->xBegin(pVtab);

    if( rc!=SQLITE_OK ){
      return rc;
    }

    rc = addToVTrans(db, pVtab);
  }
  return rc;
................................................................................
  zLowerName = sqlite3DbStrDup(db, pDef->zName);
  if( zLowerName ){
    for(z=(unsigned char*)zLowerName; *z; z++){
      *z = sqlite3UpperToLower[*z];
    }
    rc = pMod->xFindFunction(pVtab, nArg, zLowerName, &xFunc, &pArg);
    sqlite3_free(zLowerName);

  }
  if( rc==0 ){
    return pDef;
  }

  /* Create a new ephemeral function definition for the overloaded
  ** function */
................................................................................
  pParse->apVtabLock = sqlite3_realloc(pParse->apVtabLock, n);
  if( pParse->apVtabLock ){
    pParse->apVtabLock[pParse->nVtabLock++] = pTab;
  }else{
    pParse->db->mallocFailed = 1;
  }
}












#endif /* SQLITE_OMIT_VIRTUALTABLE */








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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to help implement virtual tables.
**
** $Id: vtab.c,v 1.71 2008/07/23 18:17:32 drh Exp $
*/
#ifndef SQLITE_OMIT_VIRTUALTABLE
#include "sqliteInt.h"

static int createModule(
  sqlite3 *db,                    /* Database in which module is registered */
  const char *zName,              /* Name assigned to this module */
................................................................................
      if( db->aVTrans[i]==pVtab ){
        return SQLITE_OK;
      }
    }

    /* Invoke the xBegin method */
    rc = pModule->xBegin(pVtab);
    sqlite3VtabTransferError(db, rc, pVtab);
    if( rc!=SQLITE_OK ){
      return rc;
    }

    rc = addToVTrans(db, pVtab);
  }
  return rc;
................................................................................
  zLowerName = sqlite3DbStrDup(db, pDef->zName);
  if( zLowerName ){
    for(z=(unsigned char*)zLowerName; *z; z++){
      *z = sqlite3UpperToLower[*z];
    }
    rc = pMod->xFindFunction(pVtab, nArg, zLowerName, &xFunc, &pArg);
    sqlite3_free(zLowerName);
    sqlite3VtabTransferError(db, rc, pVtab);
  }
  if( rc==0 ){
    return pDef;
  }

  /* Create a new ephemeral function definition for the overloaded
  ** function */
................................................................................
  pParse->apVtabLock = sqlite3_realloc(pParse->apVtabLock, n);
  if( pParse->apVtabLock ){
    pParse->apVtabLock[pParse->nVtabLock++] = pTab;
  }else{
    pParse->db->mallocFailed = 1;
  }
}

/*
** Transfer a virtual table error into the database connection.
*/
void sqlite3VtabTransferError(sqlite3 *db, int rc, sqlite3_vtab *pVtab){
  if( pVtab->zErrMsg ){
    sqlite3Error(db, rc, "%s", pVtab->zErrMsg);
    sqlite3_free(pVtab->zErrMsg);
    pVtab->zErrMsg = 0;
  }
}

#endif /* SQLITE_OMIT_VIRTUALTABLE */

Changes to test/fts2.test. 


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#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file runs all tests.
#
# $Id: fts2.test,v 1.1 2008/07/22 22:57:54 shess Exp $

proc lshift {lvar} {
  upvar $lvar l
  set ret [lindex $l 0]
  set l [lrange $l 1 end]
  return $ret
}
................................................................................
  }
}

set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS2 is defined, omit this file.
ifcapable !fts2 {
  puts stderr "this build does not include FTS2 capability"
  exit 1
}
rename finish_test really_finish_test
proc finish_test {} {}
set ISQUICK 1

set EXCLUDE {
  fts2.test

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# 2008 July 22
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file runs all tests.
#
# $Id: fts2.test,v 1.2 2008/07/23 18:17:32 drh Exp $

proc lshift {lvar} {
  upvar $lvar l
  set ret [lindex $l 0]
  set l [lrange $l 1 end]
  return $ret
}
................................................................................
  }
}

set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS2 is defined, omit this file.
ifcapable !fts2 {
  return

}
rename finish_test really_finish_test
proc finish_test {} {}
set ISQUICK 1

set EXCLUDE {
  fts2.test

Changes to test/fts3.test. 


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#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file runs all tests.
#
# $Id: fts3.test,v 1.1 2007/11/23 17:31:19 drh Exp $

proc lshift {lvar} {
  upvar $lvar l
  set ret [lindex $l 0]
  set l [lrange $l 1 end]
  return $ret
}
................................................................................
  }
}

set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS3 is defined, omit this file.
ifcapable !fts3 {
  puts stderr "this build does not include FTS3 capability"
  exit 1
}
rename finish_test really_finish_test
proc finish_test {} {}
set ISQUICK 1

set EXCLUDE {
  fts3.test

>








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# 2007 November 23
#
#    May you do good and not evil.
#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file runs all tests.
#
# $Id: fts3.test,v 1.2 2008/07/23 18:17:32 drh Exp $

proc lshift {lvar} {
  upvar $lvar l
  set ret [lindex $l 0]
  set l [lrange $l 1 end]
  return $ret
}
................................................................................
  }
}

set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS3 is defined, omit this file.
ifcapable !fts3 {
  return

}
rename finish_test really_finish_test
proc finish_test {} {}
set ISQUICK 1

set EXCLUDE {
  fts3.test

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