Comos\Qpm\Process\ProcessTest::tearDown PHP Method

    protected function tearDown()
    {
        $st = 0;
        while (true) {
            $r = \pcntl_wait($st, WNOHANG);
            if ($r == 0 || $r == -1) {
                break;
            }
        }
        @unlink($this->_logFile);
    }