private function daemonize()
{
$this->processManager->replaceParentProcess();
umask(0);
if (posix_setsid() === -1) {
$this->releaseLock();
throw new UnableToSetsidException();
}
$this->processManager->replaceParentProcess();
pcntl_signal(SIGHUP, function () {
$this->signalHandler(SIGHUP);
});
pcntl_signal(SIGTERM, function () {
$this->signalHandler(SIGTERM);
});
pcntl_signal(SIGINT, function () {
$this->signalHandler(SIGINT);
});
pcntl_signal(SIGCHLD, function () {
$this->signalHandler(SIGCHLD);
});
if (!chdir('/')) {
$this->releaseLock();
throw new UnableToChangeDirectoryException();
}
fclose(STDIN);
fclose(STDOUT);
fclose(STDERR);
$STDIN = fopen('/dev/null', 'r');
$STDOUT = fopen('/dev/null', 'wb');
$STDERR = fopen('/dev/null', 'wb');
}