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Add a new sqlite3_is_interrupted() interface that can be used by long-running

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app-defined functions and similar to see if they need to exit early due to
an sqlite3_interrupt() call.

FossilOrigin-Name: d030f341369b7f32789cbcf3d0ad9a2ac5cad99a56dac7dfe68b7f06dc339b17
This commit is contained in:
drh
2023-01-11 00:27:06 +00:00
parent 706631de32
commit 3b7a19b033
8 changed files with 81 additions and 17 deletions
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19
src/main.c
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@@ -1796,7 +1796,9 @@ int sqlite3_busy_timeout(sqlite3 *db, int ms){
*/
void sqlite3_interrupt(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !sqlite3SafetyCheckOk(db) && (db==0 || db->eOpenState!=SQLITE_STATE_ZOMBIE) ){
if( !sqlite3SafetyCheckOk(db)
&& (db==0 || db->eOpenState!=SQLITE_STATE_ZOMBIE)
){
(void)SQLITE_MISUSE_BKPT;
return;
}
@@ -1804,6 +1806,21 @@ void sqlite3_interrupt(sqlite3 *db){
AtomicStore(&db->u1.isInterrupted, 1);
}
/*
** Return true or false depending on whether or not an interrupt is
** pending on connection db.
*/
int sqlite3_is_interrupted(sqlite3 *db){
#ifdef SQLITE_ENABLE_API_ARMOR
if( !sqlite3SafetyCheckOk(db)
&& (db==0 || db->eOpenState!=SQLITE_STATE_ZOMBIE)
){
(void)SQLITE_MISUSE_BKPT;
return 0;
}
#endif
return AtomicLoad(&db->u1.isInterrupted)!=0;
}
/*
** This function is exactly the same as sqlite3_create_function(), except