on('connection', function($socket){
// 当客户端发来登录事件时触发
$socket->on('login', function ($uid)use($socket){
global $uidConnectionMap, $last_online_count, $last_online_page_count;
// 已经登录过了
if(isset($socket->uid)){
return;
}
// 更新对应uid的在线数据
$uid = (string)$uid;
if(!isset($uidConnectionMap[$uid]))
{
$uidConnectionMap[$uid] = 0;
}
// 这个uid有++$uidConnectionMap[$uid]个socket连接
++$uidConnectionMap[$uid];
// 将这个连接加入到uid分组，方便针对uid推送数据
$socket->join($uid);
$socket->uid = $uid;
// 更新这个socket对应页面的在线数据
//$socket->emit('update_online_count', "当前{$last_online_count}人在线，共打开{$last_online_page_count}个页面");
});
// 当客户端断开连接是触发（一般是关闭网页或者跳转刷新导致）
$socket->on('disconnect', function () use($socket) {
if(!isset($socket->uid))
{
return;
}
//$url = 'http://47.104.128.143/cron/offline/index?uid='.$socket->uid;
//file_get_contents($url);
$param = '/cron/offline/index?uid='.$socket->uid;
$fp = fsockopen("47.104.128.143", 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)
\n";
} else {
$out = "GET $param HTTP/1.1\r\n";
$out .= "Host: 47.104.128.143\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
#while (!feof($fp)) {
#echo fgets($fp, 128);
#}
fclose($fp);
}
global $uidConnectionMap, $sender_io;
// 将uid的在线socket数减一
if(--$uidConnectionMap[$socket->uid] <= 0)
{
unset($uidConnectionMap[$socket->uid]);
}
});
});
// 当$sender_io启动后监听一个http端口，通过这个端口可以给任意uid或者所有uid推送数据
$sender_io->on('workerStart', function(){
// 监听一个http端口
$inner_http_worker = new Worker('http://0.0.0.0:2121');
// 当http客户端发来数据时触发
$inner_http_worker->onMessage = function($http_connection, $data){
global $uidConnectionMap;
$_POST = $_POST ? $_POST : $_GET;
// 推送数据的url格式 type=publish&to=uid&content=xxxx
switch(@$_POST['type']){
case 'publish':
global $sender_io;
$to = @$_POST['to'];
//$_POST['content'] = htmlspecialchars(@$_POST['content']);
// 有指定uid则向uid所在socket组发送数据
if($to){
$sender_io->to($to)->emit('new_msg', $_POST['content']);
// 否则向所有uid推送数据
}else{
$sender_io->emit('new_msg', @$_POST['content']);
}
// http接口返回，如果用户离线socket返回fail
if($to && !isset($uidConnectionMap[$to])){
return $http_connection->send('offline');
}else{
return $http_connection->send('ok');
}
break;
case 'online':
return $http_connection->send(json_encode($uidConnectionMap));
break;
}
return $http_connection->send('fail');
};
// 执行监听
$inner_http_worker->listen();
// 一个定时器，定时向所有uid推送当前uid在线数及在线页面数
Timer::add(1, function(){
global $uidConnectionMap, $sender_io, $last_online_count, $last_online_page_count;
$online_count_now = count($uidConnectionMap);
$online_page_count_now = array_sum($uidConnectionMap);
// 只有在客户端在线数变化了才广播，减少不必要的客户端通讯
if($last_online_count != $online_count_now || $last_online_page_count != $online_page_count_now)
{
//$sender_io->emit('update_online_count', "当前{$online_count_now}人在线，共打开{$online_page_count_now}个页面");
$last_online_count = $online_count_now;
$last_online_page_count = $online_page_count_now;
}
});
});
if(!defined('GLOBAL_START'))
{
Worker::runAll();
}