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Add experimental sqlite_reset() API (allows pre-compiled queries) (CVS 1060)

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FossilOrigin-Name: 1d2fcb017811db90e85d63f2ca76867c00ab8f1b
This commit is contained in:
danielk1977
2003-07-22 09:24:43 +00:00
parent 4d87325d61
commit 999af643a0
6 changed files with 72 additions and 15 deletions
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28
src/vdbe.c
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@@ -36,7 +36,7 @@
** 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 1.233 2003/07/09 00:28:15 drh Exp $
** $Id: vdbe.c,v 1.234 2003/07/22 09:24:45 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -5901,3 +5901,29 @@ int sqliteVdbeFinalize(Vdbe *p, char **pzErrMsg){
}
return rc;
}
/*
** Create a new Vdbe in *pOut and populate it with the program from p. Then
** pass p to sqliteVdbeFinalize().
*/
int sqliteVdbeReset(Vdbe *p, char ** pErrMsg, Vdbe** pOut)
{
if( pOut && p->rc != SQLITE_SCHEMA ){
/* Create a new VDBE and populate it with the program used by the old
** VDBE. Don't copy the last instruction of the program, as this is an
** OP_Halt coded by sqliteVdbeMakeReady().
*/
*pOut = sqliteVdbeCreate( p->db );
(*pOut)->aOp = p->aOp;
(*pOut)->nOp = p->nOp-1;
(*pOut)->nOpAlloc = p->nOpAlloc;
sqliteVdbeMakeReady( *pOut, p->xCallback, p->pCbArg, (int)p->explain );
p->aOp = 0;
p->nOp = 0;
p->nOpAlloc = 0;
}else if( pOut ){
*pOut = NULL;
}
return sqliteVdbeFinalize(p, pErrMsg);
}