diff options
Diffstat (limited to 'src/backend/storage/lmgr/proc.c')
| -rw-r--r-- | src/backend/storage/lmgr/proc.c | 52 |
1 files changed, 1 insertions, 51 deletions
diff --git a/src/backend/storage/lmgr/proc.c b/src/backend/storage/lmgr/proc.c index 77388f86ae0..4ee651e3069 100644 --- a/src/backend/storage/lmgr/proc.c +++ b/src/backend/storage/lmgr/proc.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.203 2008/12/09 14:28:20 heikki Exp $ + * $PostgreSQL: pgsql/src/backend/storage/lmgr/proc.c,v 1.204 2008/12/09 15:59:39 heikki Exp $ * *------------------------------------------------------------------------- */ @@ -289,7 +289,6 @@ InitProcess(void) MyProc->databaseId = InvalidOid; MyProc->roleId = InvalidOid; MyProc->inCommit = false; - MemSet(MyProc->signalFlags, 0, NUM_PROCSIGNALS * sizeof(sig_atomic_t)); MyProc->vacuumFlags = 0; if (IsAutoVacuumWorkerProcess()) MyProc->vacuumFlags |= PROC_IS_AUTOVACUUM; @@ -429,7 +428,6 @@ InitAuxiliaryProcess(void) MyProc->databaseId = InvalidOid; MyProc->roleId = InvalidOid; MyProc->inCommit = false; - MemSet(MyProc->signalFlags, 0, NUM_PROCSIGNALS * sizeof(sig_atomic_t)); /* we don't set the "is autovacuum" flag in the launcher */ MyProc->vacuumFlags = 0; MyProc->lwWaiting = false; @@ -1279,54 +1277,6 @@ ProcSendSignal(int pid) PGSemaphoreUnlock(&proc->sem); } -/* - * SendProcSignal - send the signal with the reason to a process. - * - * The process can be a backend or an auxiliary process that has a PGPROC - * entry, like an autovacuum worker. - */ -void -SendProcSignal(PGPROC *proc, ProcSignalReason reason) -{ - pid_t pid; - - /* - * If the process is gone, do nothing. - * - * Since there's no locking, it's possible that the process detaches - * from shared memory and exits right after this test, before we set - * the flag and send signal. And the PGPROC entry might even be recycled - * by a new process, so it's remotely possible that we signal a wrong - * process. That's OK, all the signals are such that no harm is done. - */ - pid = proc->pid; - if (pid == 0) - return; - - /* Atomically set the proper flag */ - proc->signalFlags[reason] = true; - /* Send SIGUSR1 to the process */ - kill(pid, SIGUSR1); -} - -/* - * CheckProcSignal - check to see if the particular reason has been - * signaled, and clear the signal flag. Should be called after - * receiving SIGUSR1. - */ -bool -CheckProcSignal(ProcSignalReason reason) -{ - /* Careful here --- don't clear flag if we haven't seen it set */ - if (MyProc->signalFlags[reason]) - { - MyProc->signalFlags[reason] = false; - return true; - } - - return false; -} - /***************************************************************************** * SIGALRM interrupt support |