public function onClose($server, $fd, $fromId)
{
$host = Host::getHostByFd($fd);
if ($host) {
# 已经有连接上的服务器
Server::$instance->info("host#{$host->group}.{$host->id}({$host->ip}:{$host->port}) close connection.");
$host->remove();
# 移除服务
foreach (Host::$table as $item) {
if ($item['group'] === $host->group && $item['id'] === $host->id || $item['removed']) {
continue;
}
# 通知所有客户端移除
RPC::factory($item['fd'], $item['from_id'])->trigger('server.remove', $host->group, $host->id);
}
}
}
public function start($ip, $port)
{
if (!Host::$table) {
# Host还没初始化, 需要初始化
Host::init(false);
}
# 初始化任务服务器
$server = new \Swoole\Server($ip, $port, SWOOLE_BASE, SWOOLE_SOCK_TCP);
Server::$server = $server;
$this->server = $server;
$config = ['dispatch_mode' => 5, 'worker_num' => Server::$config['swoole']['task_worker_num'], 'max_request' => Server::$config['swoole']['task_max_request'], 'task_worker_num' => 0, 'package_max_length' => 1024 * 1024 * 50, 'task_tmpdir' => Server::$config['swoole']['task_tmpdir'], 'buffer_output_size' => Server::$config['swoole']['buffer_output_size'], 'open_eof_check' => true, 'open_eof_split' => true, 'package_eof' => \MyQEE\Server\RPC\Server::$EOF];
$server->set($config);
$server->on('WorkerStart', [$this, 'onStart']);
$server->on('Receive', [$this, 'onReceive']);
$server->on('Start', function () use($ip, $port) {
Server::$instance->info("task sever tcp://{$ip}:{$port} start success.");
});
$server->start();
}
/**
* 注册一个新服务器
*
* @param Host $host
* @return bool|\stdClass
*/
public function reg(Host $host)
{
if (!$host->port) {
$this->closeClient('host miss port');
return false;
}
if (!$host->group) {
$host->group = 'default';
}
# 获取连接信息
$connection = $this->connectionInfo();
# 没有获取到连接信息
if (!$connection) {
return false;
}
if (!$host->ip) {
# 没设置则根据连接时的IP来设置
$host->ip = $connection['remote_ip'];
}
if (is_numeric($host->id) && $host->id >= 0) {
$hostId = (int) $host->id;
if (($old = Host::get($hostId, $host->group)) && !$old->removed) {
# 指定的服务器ID已经存在, 则不让注册
$this->closeClient('already exists');
Server::$instance->debug("register server error, server {$hostId} already exists.");
return false;
}
} else {
# 自动分配ID
$hostId = false;
# 在移除的服务器列表中找
foreach (Host::$table as $k => $v) {
if ($v['removed']) {
if ($v['ip'] === $host->ip && $v['port'] == $host->port) {
$hostId = $v['id'];
break;
}
}
}
if (false === $hostId && false === ($hostId = Host::getNewHostId($host->group))) {
$this->closeClient('can not assignment id');
return false;
}
}
# 更新服务器ID
$host->id = $hostId;
$host->key = $host->encrypt ? self::random(32) : '';
$host->fd = $connection['fd'];
$host->fromId = $connection['from_id'];
# 返回参数
$rs = new \stdClass();
$rs->id = $hostId;
// 唯一ID
$rs->key = $host->key;
// 通讯密钥
$rs->ip = $host->ip;
// IP
$rs->hosts = Host::getAll();
// 已经连上的服务器列表
# 保存数据
$host->save();
Host::$fdToIdTable->set($host->fd, ['id' => $host->id, 'group' => $host->group]);
# 返回一个高级对象
$rpcRs = new Result();
$rpcRs->data = $rs;
$rpcRs->on('success', function () use($host) {
Server::$instance->info("register a new host#{$host->id}: {$host->ip}:{$host->port}");
$class = get_class($this);
# 通知所有 RPC 客户端增加服务器
foreach (Host::$table as $item) {
# 已被标志为移除的
if ($item['removed'] > 0) {
continue;
}
# 刚刚添加的不需要通知
if ($item['group'] === $host->group && $item['id'] === $host->id) {
continue;
}
$rpc = new $class($item['fd'], $item['from_id']);
/**
* @var RPC $rpc
*/
$rpc->trigger('server.add', $host);
}
});
return $rpcRs;
}
/**
* 添加一个HOST
*
* @param Host $host
*/
public static function onServerAdd($host)
{
Host::$lastChangeTime->set(time());
$host->save();
}
/**
* 获取对象
*
* @param $serverId
* @param $workerId
* @return Client|false
*/
public static function getClient($serverGroup, $serverId, $workerId, $isTask = false)
{
if (!$serverGroup) {
# 服务器分组
$serverGroup = Server::$config['clusters']['group'] ?: 'default';
}
if ($isTask) {
$serverGroup .= '.task';
}
if (-1 === $serverId) {
# 随机服务器ID
$host = Host::getRandHostData($serverGroup);
if ($host) {
$serverId = $host['id'];
}
} else {
# 随机ID
$host = Host::$table->get("{$serverGroup}_{$serverId}");
}
if (!$host) {
return false;
}
if (-1 === $workerId) {
$workerId = mt_rand(0, $host['worker_num'] - 1);
}
# 生成一个KEY
$key = "{$serverGroup}_{$serverId}_{$workerId}";
if (!isset(self::$instances[$key])) {
if (!isset($host)) {
$host = Host::$table->get($serverId);
if (!$host) {
return false;
}
}
# 检查任务ID是否超出序号返回
if ($workerId - $host['worker_num'] > 1) {
return false;
}
/**
* @var Client $client
*/
$class = static::class;
$client = new $class();
$client->serverId = $serverId;
$client->workerId = $workerId;
$client->key = $host['key'];
$client->ip = $host['ip'];
$client->port = $host['port'];
$rs = $client->connect();
if (!$rs) {
# 没有连接上去
return false;
}
self::$instances[$key] = $client;
}
return self::$instances[$key];
}