添加了socket数据处理，处理粘包和分包的问题

LFtid1056/client2.h

@@ -51,9 +51,16 @@ public:
     void start_reconnect_timer(int delay);
     void stop_timers();
     void close_handles();
+    void append_and_process_data(const char* data, size_t len);
+    void put_packet_into_queue(const std::vector<unsigned char>& packet);
 
 private:
     int index_;
+
+private:
+    std::vector<unsigned char> recv_buffer_;   // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD><EFBFBD>
+    std::mutex buffer_mutex_;                  // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    void process_buffer();
 };
 
 class ClientManager {