src/MQK/Process/MasterProcess.php
protected function kill($pid, $signal)
    {
        $this->logger->debug("{$signal} process {$pid}");
        if (!posix_kill($pid, $signal)) {
             $this->logger->error("{$signal} process failure {$pid}");
        }
    }
protected function kill($pid, $signal)
    {
        $this->logger->debug("{$signal} process {$pid}");
        if (!posix_kill($pid, $signal)) {
             $this->logger->error("{$signal} process failure {$pid}");
        }
    }
杀掉单一进程

@param int $pid
@param int $signal
@return void