/**
* {@inheritdoc}
*/
protected function dispatch(bool $blocking)
{
$flags = EventBase::LOOP_ONCE;
if (!$blocking) {
$flags |= EventBase::LOOP_NONBLOCK;
}
$this->base->loop($flags);
// Dispatch I/O, timer, and signal callbacks.
}
/**
* {@inheritdoc}
*/
protected function dispatch(int $level)
{
if ($this->deferred || $this->enable || $this->running <= $level) {
$this->loop->loop(\EventBase::LOOP_NONBLOCK);
} else {
$this->loop->loop(\EventBase::LOOP_ONCE);
}
}
/**
* Shutdown this worker
* @param boolean Hard? If hard, we shouldn't wait for graceful shutdown of the running applications.
* @return boolean|null Ready?
*/
protected function shutdown($hard = false)
{
$error = error_get_last();
if ($error) {
if ($error['type'] === E_ERROR) {
Daemon::log('W#' . $this->pid . ' crashed by error \'' . $error['message'] . '\' at ' . $error['file'] . ':' . $error['line']);
}
}
if (Daemon::$config->logevents->value) {
$this->log('event shutdown(' . ($hard ? 'HARD' : '') . ') invoked.');
}
if (Daemon::$config->throwexceptiononshutdown->value) {
throw new \Exception('event shutdown');
}
@ob_flush();
if ($this->terminated === true) {
if ($hard) {
exit(0);
}
return;
}
$this->terminated = true;
if ($hard) {
$this->setState(Daemon::WSTATE_SHUTDOWN);
exit(0);
}
$this->reloadReady = $this->appInstancesReloadReady();
if ($this->reload && $this->graceful) {
$this->reloadReady = $this->reloadReady && microtime(TRUE) > $this->reloadTime;
}
if (Daemon::$config->logevents->value) {
$this->log('reloadReady = ' . Debug::dump($this->reloadReady));
}
Timer::remove('breakMainLoopCheck');
Timer::add(function ($event) {
$self = Daemon::$process;
$self->reloadReady = $self->appInstancesReloadReady();
if ($self->reload === TRUE) {
$self->reloadReady = $self->reloadReady && microtime(TRUE) > $self->reloadTime;
}
if (!$self->reloadReady) {
$event->timeout();
} else {
$self->eventBase->exit();
}
}, 1000000.0, 'checkReloadReady');
while (!$this->reloadReady) {
$this->eventBase->loop();
}
FileSystem::waitAllEvents();
// ensure that all I/O events completed before suicide
exit(0);
// R.I.P.
}
In another terminal window find out the pid and send SIGTERM, e.g.:
$ ps aux | grep examp
ruslan 3976 0.2 0.0 139896 11256 pts/1 S+ 10:25 0:00 php examples/signal.php
ruslan 3978 0.0 0.0 9572 864 pts/2 S+ 10:26 0:00 grep --color=auto examp
$ kill -TERM 3976
At the first terminal window you should catch the following:
Caught signal 15
*/
class MyEventSignal
{
private $base, $ev;
public function __construct($base)
{
$this->base = $base;
$this->ev = Event::signal($base, SIGTERM, array($this, 'eventSighandler'), 'libo');
$this->ev->add();
}
public function eventSighandler($no, $c)
{
echo "Caught signal {$no}\n";
//print_r($c);
$this->base->exit();
}
}
$base = new EventBase();
$c = new MyEventSignal($base);
$base->loop();
