trace/postprocess/trace-pagealloc-postprocess.pl [391:415]:
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sub signal_loop() {
	my $sigint_processed;
	do {
		$sigint_processed = 0;
		process_events();

		# Handle pending signals if any
		if ($sigint_pending) {
			my $current_time = time;

			if ($sigint_exit) {
				print "Received exit signal\n";
				$sigint_pending = 0;
			}
			if ($sigint_report) {
				if ($current_time >= $sigint_received + 2) {
					report();
					$sigint_report = 0;
					$sigint_pending = 0;
					$sigint_processed = 1;
				}
			}
		}
	} while ($sigint_pending || $sigint_processed);
}
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trace/postprocess/trace-vmscan-postprocess.pl [731:755]:
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sub signal_loop() {
	my $sigint_processed;
	do {
		$sigint_processed = 0;
		process_events();

		# Handle pending signals if any
		if ($sigint_pending) {
			my $current_time = time;

			if ($sigint_exit) {
				print "Received exit signal\n";
				$sigint_pending = 0;
			}
			if ($sigint_report) {
				if ($current_time >= $sigint_received + 2) {
					report();
					$sigint_report = 0;
					$sigint_pending = 0;
					$sigint_processed = 1;
				}
			}
		}
	} while ($sigint_pending || $sigint_processed);
}
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