Function InitializeTimeouts

src/backend/utils/misc/timeout.c:447–471

* Initialize timeout module. * * This must be called in every process that wants to use timeouts. * * If the process was forked from another one that was also using this * module, be sure to call this before re-enabling signals; else handlers * meant to run in the parent process might get invoked in this one. */

 * meant to run in the parent process might get invoked in this one.
 */
void
InitializeTimeouts(void)
{
	int			i;

	/* Initialize, or re-initialize, all local state */
	disable_alarm();

	num_active_timeouts = 0;

	for (i = 0; i < MAX_TIMEOUTS; i++)
	{
		all_timeouts[i].index = i;
		all_timeouts[i].active = false;
		all_timeouts[i].indicator = false;
		all_timeouts[i].timeout_handler = NULL;
		all_timeouts[i].start_time = 0;
		all_timeouts[i].fin_time = 0;
	}

	all_timeouts_initialized = true;

	/* Now establish the signal handler */
	pqsignal(SIGALRM, handle_sig_alarm);
}

/*
 * Register a timeout reason