修复 resource temporarily unavailable

Author: kamlyli

CHANGELOG.md

@@ -1,4 +1,11 @@
+### 2021-1-26 v0.8
 
+修复 大量调用 导致 socket_recvfrom resource temporarily unavailable
+
+处理方案 增加重试机制
+### 2019-10-28 v0.7
+
+修复提的建议
 ### 2019-10-28 v0.6
 
 修复 receive 没有限制次数导致无限循环 （感谢 杨昕 发现的 bug ）

src/Manager.php

@@ -2,10 +2,13 @@
 
 namespace Kamly\DomainParser;
 
+use Kamly\DomainParser\Exceptions\Exception;
+use Kamly\DomainParser\Exceptions\HttpException;
 
 class Manager
 {
     protected $socket = '';
+    protected $RETRY_TIME = 5;
 
     public function __construct()
     {
@@ -16,16 +19,30 @@ public function __construct()
      * @param string $domain
      * @param array $options
      * @return array
-     * @throws Exceptions\HttpException
+     * @throws HttpException
      */
-    public function resolve(string $domain, array $options = [])
+    public function resolve(string $domain, array $options = [], int $retry_time = 0)
     {
+        // 重试次数超过规定次则跳出
+        if ($retry_time > $this->RETRY_TIME) {
+            throw new HttpException('resolve retry over 5 times');
+        }
+
         $this->socket->setOptions($options)->getSocket(); // 获取 socket
 
         $parser = new DomainTcpParser($domain); // 初始化 DomainTcpParser 类
 
         $this->socket->send($parser->encode());  // 编码发送的内容 + 发送
 
-        return $parser->decode($this->socket->receive()); // 接受 + 解码接收到的内容
+        try {
+            $msg = $this->socket->receive();
+        } catch (Exception $e) {
+            if ($e->getMessage() == "Resource temporarily unavailable") {
+                return $this->resolve($domain, $options, ++$retry_time);
+            }
+            throw new HttpException($e->getMessage());
+        }
+
+        return $parser->decode($msg); // 接受 + 解码接收到的内容
     }
 }