/*
* Backend-shutdown callback. Do cleanup that we want to be sure happens
* before all the supporting modules begin to nail their doors shut via
* their own callbacks.
*
* User-level cleanup, such as temp-relation removal and UNLISTEN, happens
* via separate callbacks that execute before this one. We don't combine the
* callbacks because we still want this one to happen if the user-level
* cleanup fails.
*/
static void
ShutdownPostgres(int code, Datum arg)
{
/* Make sure we've killed any active transaction */
AbortOutOfAnyTransaction();
/*
* If there was a segment OOM for which we haven't already reported
* our usage, report now.
*/
ReportOOMConsumption();
#ifdef USE_ORCA
TerminateGPOPT();
#endif
/* Disable memory protection */
GPMemoryProtect_Shutdown();
/* Release SessionState entry */
SessionState_Shutdown();
/*
* User locks are not released by transaction end, so be sure to release
* them explicitly.
*/
LockReleaseAll(USER_LOCKMETHOD, true);
}
/*
* Backend-shutdown callback. Do cleanup that we want to be sure happens
* before all the supporting modules begin to nail their doors shut via
* their own callbacks.
*
* User-level cleanup, such as temp-relation removal and UNLISTEN, happens
* via separate callbacks that execute before this one. We don't combine the
* callbacks because we still want this one to happen if the user-level
* cleanup fails.
*/
static void
ShutdownPostgres(int code, Datum arg)
{
/* Make sure we've killed any active transaction */
AbortOutOfAnyTransaction();
/*
* User locks are not released by transaction end, so be sure to release
* them explicitly.
*/
LockReleaseAll(USER_LOCKMETHOD, true);
}
/*
*--------------------------------------------------------------
* Async_UnlistenOnExit
*
* Clean up the pg_listener table at backend exit.
*
* This is executed if we have done any LISTENs in this backend.
* It might not be necessary anymore, if the user UNLISTENed everything,
* but we don't try to detect that case.
*
* Results:
* XXX
*
* Side effects:
* pg_listener is updated if necessary.
*
*--------------------------------------------------------------
*/
static void
Async_UnlistenOnExit(int code, Datum arg)
{
/*
* We need to start/commit a transaction for the unlisten, but if there is
* already an active transaction we had better abort that one first.
* Otherwise we'd end up committing changes that probably ought to be
* discarded.
*/
AbortOutOfAnyTransaction();
/* Now we can do the unlisten */
StartTransactionCommand();
Async_UnlistenAll();
CommitTransactionCommand();
}
