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Add the SQLITE_ENABLE_PREUPDATE_HOOK compile-time option.

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FossilOrigin-Name: 6634521461e6acff7cc778590e62d57831f9230d
This commit is contained in:
drh
2011-03-30 21:04:43 +00:00
parent 67c495ac20
commit 9b1c62d416
20 changed files with 95 additions and 39 deletions
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18
src/vdbe.c
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@@ -107,6 +107,16 @@ static void updateMaxBlobsize(Mem *p){
}
#endif
/*
** This macro evaluates to true if either the update hook or the preupdate
** hook are enabled for database connect DB.
*/
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
# define HAS_UPDATE_HOOK(DB) ((DB)->xPreUpdateCallback||(DB)->xUpdateCallback)
#else
# define HAS_UPDATE_HOOK(DB) ((DB)->xUpdateCallback)
#endif
/*
** The next global variable is incremented each type the OP_Found opcode
** is executed. This is used to test whether or not the foreign key
@@ -3890,7 +3900,7 @@ case OP_InsertInt: {
iKey = pOp->p3;
}
if( pOp->p4type==P4_TABLE && (db->xPreUpdateCallback||db->xUpdateCallback) ){
if( pOp->p4type==P4_TABLE && HAS_UPDATE_HOOK(db) ){
assert( pC->isTable );
assert( pC->iDb>=0 );
zDb = db->aDb[pC->iDb].zName;
@@ -3898,6 +3908,7 @@ case OP_InsertInt: {
op = ((pOp->p5 & OPFLAG_ISUPDATE) ? SQLITE_UPDATE : SQLITE_INSERT);
}
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/* Invoke the pre-update hook, if any */
if( db->xPreUpdateCallback
&& pOp->p4type==P4_TABLE
@@ -3905,6 +3916,7 @@ case OP_InsertInt: {
){
sqlite3VdbePreUpdateHook(p, pC, SQLITE_INSERT, zDb, pTab, iKey, pOp->p2);
}
#endif
if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
if( pOp->p5 & OPFLAG_LASTROWID ) db->lastRowid = iKey;
@@ -3991,7 +4003,7 @@ case OP_Delete: {
/* If the update-hook or pre-update-hook will be invoked, set iKey to
** the rowid of the row being deleted. Set zDb and zTab as well.
*/
if( pOp->p4.z && (db->xPreUpdateCallback || db->xUpdateCallback) ){
if( pOp->p4.z && HAS_UPDATE_HOOK(db) ){
assert( pC->iDb>=0 );
assert( pC->isTable );
assert( pC->rowidIsValid ); /* lastRowid set by previous OP_NotFound */
@@ -4000,6 +4012,7 @@ case OP_Delete: {
pTab = pOp->p4.pTab;
}
#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
/* Invoke the pre-update-hook if required. */
if( db->xPreUpdateCallback && pOp->p4.z ){
assert( !(opflags & OPFLAG_ISUPDATE) || (aMem[pOp->p3].flags & MEM_Int) );
@@ -4009,6 +4022,7 @@ case OP_Delete: {
pOp->p3
);
}
#endif
if( opflags & OPFLAG_ISNOOP ) break;