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监控子进程，挂了之后再重启, 怎么启动了就退出

下面是代码片段。
{{{
/**
     * 启动
     */
    public function runAction(){
        
        for($i = 0; $i < $this->maxprocesses; $i++){
            $this->createProcess();
        }
        
        
        foreach($this->workers as $process){
            //子进程也会包含此事件
            swoole_event_add($process->pipe, function ($pipe) use($process){
                $data = $process->read();
                Logs::init(LOGFILE)->addDebug("RECV:{$this->redispid}".$data);
                if(strpos($data, 'done')!==false){
                    $this->child--;
                    //$this->createProcess();
                    Logs::init(LOGFILE)->addDebug("任务执行完成,当前并发{$this->child},当前限制{$this->ctask}");
                }else{
                    Logs::init(LOGFILE)->addDebug("noop");
                }
            });
        }
        
        
        
        swoole_timer_tick(500, function(){
            Logs::init(LOGFILE)->addDebug("当前并发：{$this->child}");
            
            while ($this->child < $this->ctask){
                
                $data_pop = $this->rser->rPop($this->queuename);
                if (!$data_pop){
                    Logs::init(LOGFILE)->addDebug('没有获取到数据');
                    break;
                }
                $this->child ++;
                $index = array_rand($this->workers,1);
                
                $this->workers[$index]->write($data_pop);
            
                Logs::init(LOGFILE)->addDebug("当前并发:{$this->child},work进程:{$index} ,write content: {$data_pop}");
            }
            
        });
        
        
        swoole_process::signal(SIGCHLD, function($sig) {
            //必须为false，非阻塞模式
            echo "PID={$sig}\n";
            //此方式无法创建进程，创建就退出
            while($ret =  swoole_process::wait(false)) {
                echo "PID={$ret['pid']}\n";
                unset($this->workers[$ret['pid']]);
                $this->createProcess();
            }
            
        });
            
        
        
    }

/**
     * 创建
     */
    protected function createProcess(){
        $process = new swoole_process([$this, 'onTask']);
        $pid = $process->start();
        $this->workers[$pid] = $process;
        
        Logs::init(LOGFILE)->addDebug("创建进程:{$pid}");
        return $this;
    }

}}}

发布于8年前 · 2 次浏览 · 来自提问

Jaws

}}}

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2018-03-31

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2018-04-06

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