SWOOLE之广播消息实现

背景：

使用swoole_server swoole_table实现

//创建swoole_table
$table = new swoole_table(1024);
$table->column('fd', swoole_table::TYPE_INT);
$table->column('from_id', swoole_table::TYPE_INT);
$table->column('data', swoole_table::TYPE_STRING, 64);
$table->create();

//创建$sev对象，监听9501端口
$serv = new swoole_server('0.0.0.0', 9501, SWOOLE_PROCESS, SWOOLE_SOCK_TCP);

//设置相关属性
$serv->set(array(
    'ractor_num'    =>    1,    //主进程中线程数量
    'worker_num'    =>    2,    //工作进程数量
    'daemonize'        =>    0,  //是否守护进程
    'log_file'        =>    '/data/wwwroot/swoole.log',    //日志存储路径
    'dispatch_mode' =>     2,     //1平均分配，2按FD取摸固定分配，3抢占式分配，默认为取模(dispatch=2)'
    'task_worker_num'=> 2,
));

//连接
$serv->on('connect', function($serv, $fd){
    global $table;
    $fdinfo = $serv->connection_info($fd);
    if (!$table->exist($fd)) {
        $table->set($fd,array('fd'=>$fd,'from_id'=>$fdinfo['from_id'],'data'=>$fdinfo['socket_type']));
    }
});

//接收数据
$serv->on('receive', function($serv, $fd, $from_id, $data){
    if (trim($data)=="sendBroadcast") {
        $task_id = $serv->task('broadcast');
    } else {
        $serv->send($fd, "hello " . $fd . "i am main process " . $serv->master_pid . " and manger id " . $serv->manager_pid);
    }
});

//关闭
$serv->on('close', function($serv, $fd){
    echo $fd . " bye bye!!!";
});

//workstart事件
$serv->on('workerstart', function($serv, $work_id){
    global $argv;
    if($work_id  >= $serv->setting['worker_num']){
        swoole_set_process_name("php {$argv[0]} task worker");
    }else{
        swoole_set_process_name("php {$argv[0]} work worker");
    }
});

//server task
$serv->on('task',function($serv, $taskid, $from_id, $data){
    global $table;
    foreach($table as $row){
        $serv->send($row['fd'],"{$row['fd']} i am broadcast");
    }
    
    $serv->finish("$data -> OK");
});

//处理异步任务的结果
$serv->on('finish', function ($serv, $task_id, $data) {
    echo "AsyncTask[$task_id] Finish: $data".PHP_EOL;
});
//启动
$serv->start();