//挂断通行使用    
if (voip_status == WX_VOIP_SESSION_TALKING) {
        wx_voip_session_hangup(session, WX_VOIP_HANGUP_REASON_MANUAL);
   }
    wx_voip_session_destroy(session);   
    wx_stop();

[17:01:05.393][E][WMPF][base/memory/memory_leak_detection.cc:64][CheckMemoryLeak]: Detected memory leak: wx_operation, leak objects: 1

[17:09:49.381][E][WMPF][base/memory/memory_leak_detection.cc:64][CheckMemoryLeak]: Detected memory leak: wx_operation, leak objects: 2

[17:10:09.666][E][WMPF][base/memory/memory_leak_detection.cc:64][CheckMemoryLeak]: Detected memory leak: wx_operation, leak objects: 3

如果开启数据发送，第二次启动会话会直接崩溃，不发送数据，每次建立连接和挂断链接会出现如上log。