public function stop($timeout = 10, $signal = null)
{
$timeoutMicro = microtime(true) + $timeout;
if ($this->isRunning()) {
// given `SIGTERM` may not be defined and that `proc_terminate` uses the constant value and not the constant itself, we use the same here
$this->doSignal(15, false);
do {
usleep(1000);
} while ($this->isRunning() && microtime(true) < $timeoutMicro);
if ($this->isRunning()) {
// Avoid exception here: process is supposed to be running, but it might have stopped just
// after this line. In any case, let's silently discard the error, we cannot do anything.
$this->doSignal($signal ?: 9, false);
}
}
if ($this->isRunning()) {
if (isset($this->fallbackStatus['pid'])) {
unset($this->fallbackStatus['pid']);
return $this->stop(0, $signal);
}
$this->close();
}
return $this->exitcode;
}