protected function Process::buildCallback in Zircon Profile 8

Same name and namespace in other branches

8.0 vendor/symfony/process/Process.php \Symfony\Component\Process\Process::buildCallback()

Builds up the callback used by wait().

The callbacks adds all occurred output to the specific buffer and calls the user callback (if present) with the received output.

Parameters

callable|null $callback The user defined PHP callback:

Return value

\Closure A PHP closure

2 calls to Process::buildCallback()

Process::start in vendor/symfony/process/Process.php: Starts the process and returns after writing the input to STDIN.
Process::wait in vendor/symfony/process/Process.php: Waits for the process to terminate.

File

vendor/symfony/process/Process.php, line 1275

Class

Process: Process is a thin wrapper around proc_* functions to easily start independent PHP processes.

Namespace

Symfony\Component\Process

Code

protected function buildCallback($callback) {
  $that = $this;
  $out = self::OUT;
  $callback = function ($type, $data) use ($that, $callback, $out) {
    if ($out == $type) {
      $that
        ->addOutput($data);
    }
    else {
      $that
        ->addErrorOutput($data);
    }
    if (null !== $callback) {
      call_user_func($callback, $type, $data);
    }
  };
  return $callback;
}

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