最新libimobiledevice库崩溃运行几个小时候，会导致整个调用的应用崩溃。

解决方案：

//每隔一小时，重新注册Idevice_event_subscribe回调函数，如下面代码startTimerIdevice_event_subscribe()。
因最新开源的libimobiledevice库运行3小时左右，会崩溃。出现：Received packet is too small, got 0 bytes!

void MyMobileDevice::startTimerIdevice_event_subscribe()

{

    idevice_event_unsubscribe();

    idevice_error_t error = idevice_event_subscribe(myDeviceEvent, this);

    qDebug() << "HUI DEBUG: idevice_event_subscribe return:" << error << __func__ << __LINE__ ;

}

int MyMobileDevice::myIdevice_event_unsubscribe()

{

    idevice_error_t error = idevice_event_unsubscribe();

    qDebug() << "HUI DEBUG: idevice_event_unsubscribe return:" << error << __func__ << __LINE__ ;

    return error;

}