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Re: BUG: More shmget() problems
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Thu, 3 Jun 2004 21:53:09 +0200
- Subject: Re: BUG: More shmget() problems
- References: <380-2200464318591812@hedden.us>
- Reply-to: cygwin at cygwin dot com
On Jun 3 14:59, Jerry D. Hedden wrote:
> The following test program:
>
> #include <sys/shm.h>
> #include <errno.h>
>
> int
> main(int argc, char **argv)
> {
> int pid = fork();
> int id;
>
> if (pid == 0) {
> sleep(5);
> id = shmget(1, 100, IPC_CREAT | 0666);
> printf("child (%d): %d (%d)\n", getpid(), id, errno);
> } else {
> id = shmget(1, 100, IPC_CREAT | 0666);
> printf("parent (%d): %d (%d)\n", getpid(), id, errno);
> sleep(10);
> shmctl(id, IPC_RMID, 0);
> }
>
> return (0);
> }
>
> Produces:
>
> parent (6592): 720896 (0)
> child (28268): 1638401 (0)
>
> Showing that the child process created its own segment instead of
> begin given the parent's segment. This is a bug.
Definitely. I applied a fix in CVS.
Thanks for the testcases! They were most helpful.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Co-Project Leader mailto:cygwin@cygwin.com
Red Hat, Inc.
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