Re: 2.6.x Fork Problem?

[Frank van Maarseveen]

On Thu, Aug 12, 2004 at 09:26:27AM -0500, Jesse Pollard wrote:
> On Wednesday 11 August 2004 19:01, Torin Ford wrote:
> >
> > pid = fork();
> > switch (pid)
> > {
> >    case -1:
> >       blah; /* big trouble */
> >       break;
> >    case 0: /* Child */
> >       exit(1);
> >       break;
> >    default: /* Parent */
> >       pid2 = waitpid(pid, &status, 0);
> >       if (pid2 == -1)
> >       {
> >          blah;  /* check out errno */
> >       }
> > }
> 
> Yup - the parent process executed waitpid before the child process finished 
> the setup. This can happen in a multi-cpu environment or even a single, if
> the scheduler puts the parent process higher than the child in the queue.

ugh! I can follow the rationale for SMP.

But wouldn't this kind of behavior actually break most real world programs?

-- 
Frank
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