activemq server closed,and my client porgram reconnectd fail

     my C++ program with activemq-cpp 3.2 runs as clinet to connect with the activemq server 5.1.

It connects the remote mq server and sends some mesage;      but when the server closed or the net failed , my program detcted this to close the old connction and retry  connecting, the clinet program is hunged.