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Added an interrupt capability (CVS 153)

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FossilOrigin-Name: f7ea08b931b9b40831bfe73cd7afea17f92112cf
This commit is contained in:
drh
2000-10-16 22:06:40 +00:00
parent b2b415b97f
commit 4c5043910b
16 changed files with 146 additions and 59 deletions
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23
src/vdbe.c
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@@ -41,7 +41,7 @@
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.42 2000/10/11 19:28:53 drh Exp $
** $Id: vdbe.c,v 1.43 2000/10/16 22:06:43 drh Exp $
*/
#include "sqliteInt.h"
#include <unistd.h>
@@ -169,6 +169,7 @@ struct SetElem {
** An instance of the virtual machine
*/
struct Vdbe {
sqlite *db; /* The whole database */
Dbbe *pBe; /* Opaque context structure used by DB backend */
FILE *trace; /* Write an execution trace here, if not NULL */
int nOp; /* Number of instructions in the program */
@@ -204,11 +205,12 @@ struct Vdbe {
/*
** Create a new virtual database engine.
*/
Vdbe *sqliteVdbeCreate(Dbbe *pBe){
Vdbe *sqliteVdbeCreate(sqlite *db){
Vdbe *p;
p = sqliteMalloc( sizeof(Vdbe) );
p->pBe = pBe;
p->pBe = db->pBe;
p->db = db;
return p;
}
@@ -836,6 +838,12 @@ int sqliteVdbeList(
rc = SQLITE_OK;
/* if( pzErrMsg ){ *pzErrMsg = 0; } */
for(i=0; rc==SQLITE_OK && i<p->nOp; i++){
if( p->db->flags & SQLITE_Interrupt ){
p->db->flags &= ~SQLITE_Interrupt;
sqliteSetString(pzErrMsg, "interrupted", 0);
rc = SQLITE_INTERRUPT;
break;
}
sprintf(zAddr,"%d",i);
sprintf(zP1,"%d", p->aOp[i].p1);
sprintf(zP2,"%d", p->aOp[i].p2);
@@ -929,6 +937,15 @@ int sqliteVdbeExec(
for(pc=0; rc==SQLITE_OK && pc<p->nOp && pc>=0; pc++){
pOp = &p->aOp[pc];
/* Interrupt processing if requested.
*/
if( p->db->flags & SQLITE_Interrupt ){
p->db->flags &= ~SQLITE_Interrupt;
rc = SQLITE_INTERRUPT;
sqliteSetString(pzErrMsg, "interrupted", 0);
break;
}
/* Only allow tracing if NDEBUG is not defined.
*/
#ifndef NDEBUG