Message Queue under Qt5: zmq + nzmqt + qt

Using nzmqt, you can use message queue under QT5

The synchronised message deliver method:

For example:

I ask a question and wait till the peer answered.

Solution:

http://blog.sina.com.cn/s/blog_413978670100m9y3.html

int loginSync(const QString& username, const QString& password)
{


  QEventLoop q;



  connect(this, SIGNAL(OnLoginStatusChanged()), &q, SLOT(quit()));  //异步调用完成退出

  Login(username, password);   //调用异步函数
 

  q.exec();

   

  //以下可以根据异步函数的返回结果进行进一步操作并返回函数结果。
 // now i_am_test == 1
  assert(i_am_test == 1);

 }

void <pre name="code" class="cpp">OnLoginStatusChanged()
{
      i_am_test = 1;
}

ZMQ Requester-Replier 's synchronization method

int loginSync(const QString& username, const QString& password)
{


  QEventLoop q;

  nzmqt::Requester req;
  req.sendReq("Requesting something");
  connect(&req, SIGNAL(reply()), *q, SLOT(quit()); // wait till the reply reached.
 connect(this, SIGNAL(OnLoginStatusChanged()), &q, SLOT(quit()));  //异步调用完成退出

  Login(username, password);   //调用异步函数
 
  q.exec();

  assert("I_am_the_answer" == req.getAnswer());  

  //以下可以根据异步函数的返回结果进行进一步操作并返回函数结果。
 // now i_am_test == 1
  assert(i_am_test == 1);

 }

void <pre name="code" class="cpp">OnLoginStatusChanged()
{
      i_am_test = 1;
}