In Visual C++ , Call A Function And Execute Rest Of The Program, Simultaneously

Question

Parallel programming or threading, it should be for Visual C++.

A function takes a large amount of time To complete, as a result the rest of the code will not be executed for ex

main()
{  
    timeconsumingcode();
    nextstep();
}

nextstep() Will not Take Place Until timeconsumingcode() gets over;

hence i want timeconsumingcode() and nextstep() to run simultaneously

I would like to know how we do it for Visual C++

While the linked question is quite similar, it predates C++11. — MSalters, Feb 05 '14 at 09:49
http://stackoverflow.com/questions/266168/simple-example-of-threading-in-c might be relevant — Donal Fellows, Feb 06 '14 at 08:08

bobah · Answer 1 · 2014-02-05T09:58:52.483

4

In C++11 you should be able to use std::async or, as @MSalters proposed in the comment, std::thread(&timeconsumingcode).detach();. On C++03 you should be able to model the same with the boost::thread.

edited Feb 05 '14 at 09:58

answered Feb 05 '14 at 08:00

bobah

1

Or just `std::thread(&timeconsumingcode).detach();` – MSalters Feb 05 '14 at 09:50

score 2 · Answer 2 · answered Feb 05 '14 at 08:03

You can use C Runtime Function _beginthreadex. You should change the signature of your timeconsumingcode a bit.

unsigned int __stdcall timeconsumingcode(void* pdata);
main()
{  
  _beginthreadex(NULL, 0, timeconsumingcode, NULL, 0, NULL);
  nextstep()
}

2 Answers2