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Merge branch 'MDL-64359-master' of git://github.com/andrewnicols/moodle

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Eloy Lafuente (stronk7) 2019-01-16 19:05:30 +01:00
commit 98b845bd59
1 changed files with 45 additions and 0 deletions
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45
lib/classes/shutdown_manager.php
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@ -48,6 +48,51 @@ class core_shutdown_manager {
}
self::$registered = true;
register_shutdown_function(array('core_shutdown_manager', 'shutdown_handler'));
// Signal handlers should only be used when dealing with a CLI script.
// In the case of PHP called in a web server the server is the owning process and should handle the signal chain
// properly itself.
// The 'pcntl' extension is optional and not available on Windows.
if (CLI_SCRIPT && extension_loaded('pcntl') && function_exists('pcntl_async_signals')) {
// We capture and handle SIGINT (Ctrl+C) and SIGTERM (termination requested).
pcntl_async_signals(true);
pcntl_signal(SIGINT, ['core_shutdown_manager', 'signal_handler']);
pcntl_signal(SIGTERM, ['core_shutdown_manager', 'signal_handler']);
}
}
/**
* Signal handler for SIGINT, and SIGTERM.
*
* @param int $signo The signal being handled
*/
public static function signal_handler($signo) {
// Note: There is no need to manually call the shutdown handler.
// The fact that we are calling exit() in this script means that the standard shutdown handling is performed
// anyway.
switch ($signo) {
case SIGTERM:
// Replicate native behaviour.
echo "Terminated: {$signo}\n";
// The standard exit code for SIGTERM is 143.
$exitcode = 143;
break;
case SIGINT:
// Replicate native behaviour.
echo "\n";
// The standard exit code for SIGINT (Ctrl+C) is 130.
$exitcode = 130;
break;
default:
// The signal handler was called with a signal it was not expecting.
// We should exit and complain.
echo "Warning: \core_shutdown_manager::signal_handler() was called with an unexpected signal ({$signo}).\n";
$exitcode = 1;
}
exit ($exitcode);
}
/**