/*
* PortalCleanupHelper
*
* This could be called more than once. Each step should guard itself
* so that it will be executed only once even if called more than once.
* The *cleanupstate arg can be used to remember what has been done.
*/
static void
PortalCleanupHelper(Portal portal, volatile int *cleanupstate)
{
QueryDesc *queryDesc = PortalGetQueryDesc(portal);
/*
* Shut down executor, if still running. We skip this during error abort,
* since other mechanisms will take care of releasing executor resources,
* and we can't be sure that ExecutorEnd itself wouldn't fail.
*/
portal->queryDesc = NULL;
if (queryDesc)
{
if (queryDesc->estate)
{
/*
* If we still have an estate -- then we need to cancel any
* unfinished work.
*/
queryDesc->estate->cancelUnfinished = true;
/* we do not need AfterTriggerEndQuery() here */
ExecutorEnd(queryDesc);
}
}
/*
* Terminate unneeded QE processes.
*/
if (*cleanupstate < 1 && Gp_role == GP_ROLE_DISPATCH)
{
*cleanupstate = 1;
cleanupPortalGangs(portal);
}
/*
* If resource scheduling is enabled, release the resource lock.
*/
if (portal->releaseResLock)
{
portal->releaseResLock = false;
ResUnLockPortal(portal);
}
/**
* Clean up backend's backoff entry
*/
if (gp_enable_resqueue_priority
&& Gp_role == GP_ROLE_DISPATCH
&& gp_session_id > -1)
{
BackoffBackendEntryExit();
}
} /* PortalCleanupHelper */
/**
* Invalidate the statement id corresponding to this backend so that it may
* be eliminated from consideration by the sweeper early.
*/
static void
BackoffStateAtExit(int code, Datum arg)
{
BackoffBackendEntryExit();
}