/**
* 定时检查gateway通信端口，如果有新的gateway则去建立长连接
*/
public function checkGatewayConnections()
{
$key = 'GLOBAL_GATEWAY_ADDRESS';
$addresses_list = Store::instance('gateway')->get($key);
if (empty($addresses_list)) {
return;
}
// 循环遍历，查找未连接的gateway ip 端口
foreach ($addresses_list as $addr) {
if (!isset($this->gatewayConnections[$addr])) {
// 执行连接
$conn = @stream_socket_client("tcp://{$addr}", $errno, $errstr, 1);
if (!$conn) {
if (!isset($this->badGatewayAddress[$addr])) {
$this->badGatewayAddress[$addr] = 0;
}
// 删除连不上的端口
if ($this->badGatewayAddress[$addr]++ > self::MAX_RETRY_COUNT) {
\Man\Core\Lib\Mutex::get();
$addresses_list = Store::instance('gateway')->get($key);
unset($addresses_list[$addr]);
Store::instance('gateway')->set($key, $addresses_list);
$this->notice("tcp://{$addr} " . $errstr . " del {$addr} from store", false);
\Man\Core\Lib\Mutex::release();
}
continue;
}
unset($this->badGatewayAddress[$addr]);
$this->gatewayConnections[$addr] = $conn;
stream_set_blocking($this->gatewayConnections[$addr], 0);
// 初始化一些值
$fd = (int) $this->gatewayConnections[$addr];
$this->connections[$fd] = $this->gatewayConnections[$addr];
$this->recvBuffers[$fd] = array('buf' => '', 'remain_len' => $this->prereadLength);
// 添加数据可读事件
$this->event->add($this->connections[$fd], \Man\Core\Events\BaseEvent::EV_READ, array($this, 'dealInputBase'), $fd);
}
}
}
/**
* 删除全局的通信地址
* @param string $address
*/
protected function unregisterAddress($address)
{
// 这里使用了信号量只能实现单机互斥，分布式互斥需要借助于memcache incr 或者其他分布式存储
\Man\Core\Lib\Mutex::get();
$key = 'GLOBAL_GATEWAY_ADDRESS';
$addresses_list = Store::instance('gateway')->get($key);
if (empty($addresses_list)) {
$addresses_list = array();
}
unset($addresses_list[$address]);
Store::instance('gateway')->set($key, $addresses_list);
\Man\Core\Lib\Mutex::release();
}
/**
* 删除全局的通信地址
* @param string $address
*/
protected function unregisterAddress($address)
{
// 统计打点
StatisticClient::tick(__CLASS__, 'unregisterAddress');
// 这里使用了信号量只能实现单机互斥，分布式互斥需要借助于memcached incr cas或者其他分布式存储
\Man\Core\Lib\Mutex::get();
// key
$key = 'GLOBAL_GATEWAY_ADDRESS';
// 获取存储实例
try {
$store = Store::instance('gateway');
} catch (\Exception $msg) {
StatisticClient::report(__CLASS__, 'unregisterAddress', 0, 108, $msg);
\Man\Core\Lib\Mutex::release();
return false;
}
// 获取数据
$addresses_list = $store->get($key);
if (empty($addresses_list)) {
$addresses_list = array();
}
// 去掉要删除的数据
unset($addresses_list[$address]);
// 保存数据
if (!$store->set($key, $addresses_list)) {
\Man\Core\Lib\Mutex::release();
$msg = "删除gateway通信地址出错";
if (get_class($store) == 'Memcached') {
$msg .= " 原因:" . $store->getResultMessage();
}
$this->notice($msg);
StatisticClient::report(__CLASS__, 'unregisterAddress', 0, 108, new \Exception($msg));
return;
}
// 存储成功
\Man\Core\Lib\Mutex::release();
StatisticClient::report(__CLASS__, 'unregisterAddress', 1, 0, '');
}
/**
* 存储全局的通信地址
* @param string $address
* @todo 用锁机制等保证数据完整性
*/
protected function registerAddress($address)
{
\Man\Core\Lib\Mutex::get();
$key = 'GLOBAL_GATEWAY_ADDRESS';
$addresses_list = Store::get($key);
if (empty($addresses_list)) {
$addresses_list = array();
}
$addresses_list[$address] = $address;
Store::set($key, $addresses_list);
\Man\Core\Lib\Mutex::release();
}
