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Author Topic: Threads not running in parallel  (Read 7986 times)

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Ixrec

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Re: Threads not running in parallel
« Reply #15 on: May 03, 2014, 11:56:49 pm »
Put your objects in the correct scope so they live as long as you want them to.  This is an important principle for C++ code in general, not just for using resource objects like threads.  You need to understand when objects' constructors and destructors get called, and what they do.

Your Server object should be created in main(), before the main loop begins.

The Server's sf::Thread should be a member variable that gets initialized in the constructor and launched in a method, NOT a local variable that gets created, initialized, launched and destroyed all in the constrcutor.

Walta69

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Re: Threads not running in parallel
« Reply #16 on: May 04, 2014, 12:01:48 am »
I have done all of the above:

void Server::StartThread()
{
   serverThread = new std::thread(&Server::test, this);
   serverThread->join();
}

which gets called in the main as follows:

int main()
{
   Server * server;
   server = new Server(8080); // start server
...
...
...
            else if (e.key.code == sf::Keyboard::S)
            {
               if (!hasChosen)
               {
                  hasChosen = true;
                  std::cout << "Test";
                  server->StartThread();
               }
            }
...
...
...

Ixrec

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Re: Threads not running in parallel
« Reply #17 on: May 04, 2014, 12:07:39 am »
join() waits for the thread to finish.  I don't think you want to call that in StartThread().

Walta69

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Re: Threads not running in parallel
« Reply #18 on: May 04, 2014, 12:11:49 am »
I am a retard.

Walta69

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Re: Threads not running in parallel
« Reply #19 on: May 04, 2014, 12:12:17 am »
Thank you :O

Ixrec

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Re: Threads not running in parallel
« Reply #20 on: May 04, 2014, 12:14:18 am »
Phew, glad you finally got it to work.

 

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