public function processOutput($childName)
    {
        $output = $this->outputBuffer . $this->process->getIncrementalOutput();
        $errorOutput = $this->errorOutputBuffer . $this->process->getIncrementalErrorOutput();
        $outputLines = explode("\n", $output);
        $errorOutputLines = explode("\n", $errorOutput);
        if (count($outputLines) > 0) {
            $lastItem = array_pop($outputLines);
            $this->outputBuffer = $lastItem;
            $this->bufferLength += implode("\n", $outputLines);
            foreach ($outputLines as $line) {
                if (strstr($line, "[[CHILD::BUSY]]")) {
                    $this->parent->verboseOutput('<info>' . $childName . ' BUSY</info>');
                    $this->status = ChildProcessContainer::STATUS_BUSY;
                } elseif (strstr($line, "[[CHILD::READY]]")) {
                    $this->parent->verboseOutput('<info>' . $childName . ' READY</info>');
                    if ($this->status != ChildProcessContainer::STATUS_BUSY_BUT_SLEEPY) {
                        $this->status = ChildProcessContainer::STATUS_READY;
                    } else {
                        $this->status = ChildProcessContainer::STATUS_SLEEPY;
                    }
                } elseif (strlen($line) > 0) {
                    $this->parent->verboseOutput('<info>OUTPUT ' . $childName . ':</info>' . $line);
                }
            }
        }
        if (count($errorOutputLines) > 0) {
            $lastItemError = array_pop($errorOutputLines);
            $this->errorOutputBuffer = $lastItemError;
            $knownErrorOutput = implode("\n", $errorOutputLines);
            $this->bufferLength += strlen($knownErrorOutput);
        }
    }