/** * Closes the stream resource provided, the open process handle, and stdin. * * @param resource $resource */ private function close($resource) { if (is_resource($resource)) { fclose($resource); } if (is_resource($this->process)) { proc_close($this->process); $this->process = null; } $this->stdin->close(); }
/** * {@inheritdoc} * * @param float|int $timeout Timeout for poll and await if a read or write was pending. */ public function rebind(float $timeout = 0) { $this->readable->rebind($timeout); $this->writable->rebind($timeout); }
/** * @throws \Icicle\Concurrent\Exception\StatusError If the process is already running. */ public function start() { if (null !== $this->promise) { throw new StatusError('The process has already been started.'); } $fd = [ ['pipe', 'r'], // stdin ['pipe', 'w'], // stdout ['pipe', 'a'], // stderr ['pipe', 'w'], // exit code pipe ]; $nd = 0 === strncasecmp(PHP_OS, 'WIN', 3) ? 'NUL' : '/dev/null'; $command = sprintf('(%s) 3>%s; code=$?; echo $code >&3; exit $code', $this->command, $nd); $this->process = proc_open($command, $fd, $pipes, $this->cwd ?: null, $this->env ?: null, $this->options); if (!is_resource($this->process)) { throw new ProcessException('Could not start process.'); } $this->oid = getmypid(); $status = proc_get_status($this->process); if (!$status) { proc_close($this->process); $this->process = null; throw new ProcessException('Could not get process status.'); } $this->pid = $status['pid']; $this->stdin = new WritablePipe($pipes[0]); $this->stdout = new ReadablePipe($pipes[1]); $this->stderr = new ReadablePipe($pipes[2]); $stream = $pipes[3]; stream_set_blocking($stream, 0); $this->promise = new Promise(function (callable $resolve, callable $reject) use ($stream) { $this->poll = Loop\poll($stream, function ($resource) use ($resolve, $reject) { if (feof($resource)) { $reject(new ProcessException('Process ended unexpectedly.')); } else { $code = fread($resource, 1); if (!strlen($code) || !is_numeric($code)) { $reject(new ProcessException('Process ended without providing a status code.')); } else { $resolve((int) $code); } } fclose($resource); if (is_resource($this->process)) { proc_close($this->process); $this->process = null; } $this->stdin->close(); $this->poll->free(); }); $this->poll->unreference(); $this->poll->listen(); }); }