定时器覆盖问题

netslang 更新于2020-08-27

public function onMessage($connection, $data)
{
global $worker;
$connection->lastMessageTime = time();
$data = json_decode($data, true);
$_SESSION['hotel_price'] = '';
switch($data['type']){
case 'login':
$where['id'] = $data['id'];
$where['token'] = $data['token'];
$id = Db::name('business')->where($where)->value('id');
if($id){
$connection->uid = $id;//设置当前客户端id
$worker->uidConnections[$connection->uid] = $connection;//保存到服务器里
$connection->send('{"type":"login","msg":"登录成功"}');
$timer = new Timer();
$connection->timer_id = $timer->add('10',function()use($connection,$data){
$connection->send('{"type":"ping"}');
});
}else{
$connection->timer_id = '';
$connection->uid = $data['id'].$data['token'];
$worker->uidConnections[$connection->uid] = $connection;//保存到服务器里
$connection->send('{"type":"login","msg":"登录失败"}');
$connection->close();
}
break;
}
}

如果用户多点了一次login的话定时器就会形成两个ping到客户端了各位大神怎么解决？

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1个回答

taozywu 2020-08-27

首先你需要多看下文档，定时器不建议写在onMessage回调。

从你代码中大致得出定时器主要做一件事：那就是心跳检测。

如下为大概示例：

<?php
 
require_once __DIR__ . '/Workerman/Autoloader.php';
 
 
use Workerman\Worker;
use Workerman\Lib\Timer;

$worker = new Worker('tcp://0.0.0.0:1234');

$worker->onWorkerStart = function($worker) {
    // 防止开多进程
    if ($worker->id === 0) {
        Timer::add(10, function()use($worker) {
            foreach($worker->connections as $connection) {
                $connection->send('{"type":"ping"}');
            }
        });
    }
};
 
$worker->onConnect = function($connection) {
};

$worker->onMessage = function($connection, $data) {
    global $worker;
    $connection->lastMessageTime = time();
    $data = json_decode($data, true);
    $_SESSION['hotel_price'] = '';
    switch ($data['type']) {
        case 'login':
            $where['id'] = $data['id'];
            $where['token'] = $data['token'];
            $id = Db::name('business')->where($where)->value('id');
            if ($id) {
                $connection->uid = $id; //设置当前客户端id
                $worker->uidConnections[$connection->uid] = $connection; //保存到服务器里
                $connection->send('{"type":"login","msg":"登录成功"}');
            } else {
                $connection->timer_id = '';
                $connection->uid = $data['id'] . $data['token'];
                $worker->uidConnections[$connection->uid] = $connection; //保存到服务器里
                $connection->send('{"type":"login","msg":"登录失败"}');
                $connection->close();
            }
            break;
    }
};

// 如果不是在根目录启动，则运行runAll方法
if(!defined('GLOBAL_START')) {
    Worker::runAll();
}

netslang 2020-08-27

如果不放到onMessage里，那用户send验证账户密码怎么做，验证登录密码后我们要实时返回数据给用户呢，我现在的情况是可能用户多点了一次login 我们的服务器会返回两次数据，重复了怎么样避免这样的问题呢？
taozywu 2020-08-27

if($success) {
$connection->send(json);
}
类似这样就行了。
netslang 2020-08-27

@753: 我们会定时返回数据给用户呢？比如有消息回来我们要推给用户撒推给用户的同时必须要这个用户是登录成功的
taozywu 2020-08-31

@7358:onMessage 绑定好用户bindUid。然后在定时器通过判断获取到然后sendToUid
taozywu 2020-08-31

@7358:可以把数据保存在redis中，在定时器中读取一下。