Rainer Feike techblog

While in C++ there was no build-in threading support, D comes with a JAVA-like class “Thread”. So while in C/C++ you had to mingle around with threading libs like pthread or solaris-threads, in D you can leave that problem to phobos.

A simple example shows all the simplicity:

import std.c.time;
import std.stdio;
import std.thread;

int runThread(void *ptr)
{
  printf("Thread %d startedn", cast(int)ptr);
  sleep(10);
  printf("Thread %d endedn", cast(int)ptr);
  return 0;
}

int main()
{
  Thread t1 = new Thread(&runThread, cast(void *)1);
  t1.start();
  sleep(2);
  Thread t2 = new Thread(&runThread, cast(void *)2);
  t2.start();

  while ((t1.getState() == std.thread.Thread.TS.RUNNING)
            || (t2.getState() == std.thread.Thread.TS.RUNNING))
    Thread.yield ();   

  printf("program readyn");
  return 0;
}

That’s it. Save the code as ThreadTest.d, than compile with “gdc ThreadTest.d” and run a.out (or a.exe). What you get as output should be very similar to:

rainer@ThinkTop ~
$ ./a.exe
Thread 1 started
Thread 2 started
Thread 1 ended
Thread 2 ended
program ready

This entry was posted on Friday, June 8th, 2007 at 11:39 am and is filed under D. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.