山に住む一家は千個の巣から蜂蜜を収穫し、幼い子供たちは新しい畑で5エーカーの野菜を栽培している。
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Google\Site_Kit_Dependencies\Monolog;
use Google\Site_Kit_Dependencies\Psr\Log\LoggerInterface;
use Google\Site_Kit_Dependencies\Psr\Log\LogLevel;
use ReflectionExtension;
/**
* Monolog POSIX signal handler
*
* @author Robert Gust-Bardon
*/
class SignalHandler
{
private $logger;
private $previousSignalHandler = array();
private $signalLevelMap = array();
private $signalRestartSyscalls = array();
public function __construct(\Google\Site_Kit_Dependencies\Psr\Log\LoggerInterface $logger)
{
$this->logger = $logger;
}
public function registerSignalHandler($signo, $level = \Google\Site_Kit_Dependencies\Psr\Log\LogLevel::CRITICAL, $callPrevious = \true, $restartSyscalls = \true, $async = \true)
{
if (!\extension_loaded('pcntl') || !\function_exists('pcntl_signal')) {
return $this;
}
if ($callPrevious) {
if (\function_exists('pcntl_signal_get_handler')) {
$handler = \pcntl_signal_get_handler($signo);
if ($handler === \false) {
return $this;
}
$this->previousSignalHandler[$signo] = $handler;
} else {
$this->previousSignalHandler[$signo] = \true;
}
} else {
unset($this->previousSignalHandler[$signo]);
}
$this->signalLevelMap[$signo] = $level;
$this->signalRestartSyscalls[$signo] = $restartSyscalls;
if (\function_exists('pcntl_async_signals') && $async !== null) {
\pcntl_async_signals($async);
}
\pcntl_signal($signo, array($this, 'handleSignal'), $restartSyscalls);
return $this;
}
public function handleSignal($signo, array $siginfo = null)
{
static $signals = array();
if (!$signals && \extension_loaded('pcntl')) {
$pcntl = new \ReflectionExtension('pcntl');
$constants = $pcntl->getConstants();
if (!$constants) {
// HHVM 3.24.2 returns an empty array.
$constants = \get_defined_constants(\true);
$constants = $constants['Core'];
}
foreach ($constants as $name => $value) {
if (\substr($name, 0, 3) === 'SIG' && $name[3] !== '_' && \is_int($value)) {
$signals[$value] = $name;
}
}
unset($constants);
}
$level = isset($this->signalLevelMap[$signo]) ? $this->signalLevelMap[$signo] : \Google\Site_Kit_Dependencies\Psr\Log\LogLevel::CRITICAL;
$signal = isset($signals[$signo]) ? $signals[$signo] : $signo;
$context = isset($siginfo) ? $siginfo : array();
$this->logger->log($level, \sprintf('Program received signal %s', $signal), $context);
if (!isset($this->previousSignalHandler[$signo])) {
return;
}
if ($this->previousSignalHandler[$signo] === \true || $this->previousSignalHandler[$signo] === \SIG_DFL) {
if (\extension_loaded('pcntl') && \function_exists('pcntl_signal') && \function_exists('pcntl_sigprocmask') && \function_exists('pcntl_signal_dispatch') && \extension_loaded('posix') && \function_exists('posix_getpid') && \function_exists('posix_kill')) {
$restartSyscalls = isset($this->signalRestartSyscalls[$signo]) ? $this->signalRestartSyscalls[$signo] : \true;
\pcntl_signal($signo, \SIG_DFL, $restartSyscalls);
\pcntl_sigprocmask(\SIG_UNBLOCK, array($signo), $oldset);
\posi