void SignalHandlerForCrashExit(SIGNAL_ARGS)
void SignalHandlerForShutdownRequest(SIGNAL_ARGS)
void HandleMainLoopInterrupts(void)
void SignalHandlerForConfigReload(SIGNAL_ARGS)
PGDLLIMPORT volatile sig_atomic_t ConfigReloadPending
PGDLLIMPORT volatile sig_atomic_t ShutdownRequestPending