glibc/nptl/tst-sem8.c
Ulrich Drepper dcfc822431 Update.
* Makefile (tests): Add tst-sem8 and tst-sem9.
	* tst-sem8.c: New file.
	* tst-sem9.c: New file.
	* sem_open.c: Fix creation of in_use record if the file exists but
	no internal record.
2003-05-31 19:58:46 +00:00

77 lines
1.8 KiB
C

/* Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <fcntl.h>
#include <semaphore.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static void
remove_sem (int status, void *arg)
{
sem_unlink (arg);
}
int
main (void)
{
sem_t *s;
sem_t *s2;
sem_t *s3;
int i;
on_exit (remove_sem, (void *) "/glibc-tst-sem8");
for (i = 0; i < 3; ++i)
{
s = sem_open ("/glibc-tst-sem8", O_CREAT, 0600, 1);
if (s == SEM_FAILED)
{
if (errno == ENOSYS)
{
puts ("sem_open not supported. Oh well.");
return 0;
}
/* Maybe the shm filesystem has strict permissions. */
if (errno == EACCES)
{
puts ("sem_open not allowed. Oh well.");
return 0;
}
printf ("sem_open: %m\n");
return 1;
}
/* Now close the handle. */
if (sem_close (s) != 0)
{
puts ("sem_close failed");
return 1;
}
}
return 0;
}