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PHP swoole process的使用

发布时间:2023-09-06 01:06责任编辑:赖小花关键词:PHP

引入背景:假如我们每天有10000个订单生成,需要同步到仓储系统中去,以前做法是开启一个crontab去跑这些任务,但是发现总有感觉同步效率低,间隔时间都是分钟级别的。

解决方案测试:我们将同步订单的任务表添加一个hash作为key,作为分发条件,因为mysql中select如果做mod函数是用不到索引的,所以我们自己做随机hash,但是务必不需要范围太大,以免服务器资源不够,方法是根据hashkey投放到不同的进程中进行同步,测试代码如下

<?php/** * Created by PhpStorm. * User: xujun * Date: 2017/8/26 * Time: 9:37 *///假定需要处理的数据如下class Process{ ???public $mpid=0; ???public $max_precess=5; ???//代替从数据库中读取的内容 ???public $task = [ ???????[‘uid‘=>1,‘uname‘=>‘bot‘,‘hash‘=>1,‘handle‘=>‘test‘], ???????[‘uid‘=>2,‘uname‘=>‘bot1‘,‘hash‘=>2,‘handle‘=>‘test‘], ???????[‘uid‘=>3,‘uname‘=>‘bot2‘,‘hash‘=>3,‘handle‘=>‘test‘], ???????[‘uid‘=>4,‘uname‘=>‘bot3‘,‘hash‘=>4,‘handle‘=>‘test‘], ???????[‘uid‘=>2,‘uname‘=>‘bot4‘,‘hash‘=>2,‘handle‘=>‘test‘], ???????[‘uid‘=>3,‘uname‘=>‘bot5‘,‘hash‘=>3,‘handle‘=>‘test‘], ???????[‘uid‘=>4,‘uname‘=>‘bot6‘,‘hash‘=>1,‘handle‘=>‘test‘], ???]; ???public $works = []; ???public ?$swoole_table = NULL; ???//public $new_index=0; ???function test($index,$task){ ???????print_r("[".date(‘Y-m-d H:i:s‘)."]".‘work-index:‘.$index.‘处理‘.$task[‘uname‘].‘完成‘.PHP_EOL); ???} ???public function __construct(){ ???????try { ???????????$this->swoole_table = new swoole_table(1024); ???????????$this->swoole_table->column(‘index‘, swoole_table::TYPE_INT);//用于父子进程间数据交换 ???????????$this->swoole_table->create(); ???????????swoole_set_process_name(sprintf(‘php-ps:%s‘, ‘master‘)); ???????????$this->mpid = posix_getpid(); ???????????$this->run(); ???????????$this->processWait(); ???????}catch (\Exception $e){ ???????????die(‘ALL ERROR: ‘.$e->getMessage()); ???????} ???} ???public function run(){ ???????for ($i=0; $i < $this->max_precess; $i++) { ???????????$this->CreateProcess(); ???????} ???} ???private function getTask($index){ ???????$_return = []; ???????foreach ($this->task as $v){ ???????????if($v[‘hash‘]==$index){ ???????????????$_return[] = $v; ???????????} ???????} ???????return $_return; ???} ???public function CreateProcess($index=null){ ???????if(is_null($index)){//如果没有指定了索引,新建的子进程,开启计数 ???????????$index=$this->swoole_table->get(‘index‘); ???????????if($index === false){ ???????????????$index = 0; ???????????}else{ ???????????????$index = $index[‘index‘]+1; ???????????} ???????????print_r($index); ???????} ???????$this->swoole_table->set(‘index‘,array(‘index‘=>$index)); ???????$process = new swoole_process(function(swoole_process $worker)use($index){ ???????????swoole_set_process_name(sprintf(‘php-ps:%s‘,$index)); ???????????$task = $this->getTask($index); ???????????foreach ($task as $v){ ???????????????call_user_func_array(array($this,$v[‘handle‘]),array($index,$v)); ???????????} ???????????sleep(20); ???????}, false, false); ???????$pid=$process->start(); ???????$this->works[$index]=$pid; ???????return $pid; ???} ???public function rebootProcess($ret){ ???????$pid=$ret[‘pid‘]; ???????$index=array_search($pid, $this->works); ???????if($index!==false){ ???????????$index=intval($index); ???????????$new_pid=$this->CreateProcess($index); ???????????echo "rebootProcess: {$index}={$new_pid} Done\n"; ???????????return; ???????} ???????throw new \Exception(‘rebootProcess Error: no pid‘); ???} ???public function processWait(){ ???????while(1) { ???????????if(count($this->works)){ ???????????????$ret = swoole_process::wait(); ???????????????if ($ret) { ???????????????????$this->rebootProcess($ret); ???????????????} ???????????}else{ ???????????????break; ???????????} ???????} ???}}$process = new Process();

这里代码中,使用了swoole_table作为进程间共享的内存,为了分配index。以及当进程退出后,父进程通过wait重新拉起该进程任务。

测试截图

进程ps

结果 休眠20s后退出后会被自动拉起

PHP swoole process的使用

原文地址:http://www.cnblogs.com/gavinjunftd/p/7434846.html

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