mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/* Test for sem_open cancellation handling: BZ #15765.
|
|
Copyright (C) 2016-2025 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthread.h>
|
|
#include <sys/mman.h>
|
|
#include <semaphore.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
|
|
static sem_t sem; /* Use to sync with thread start. */
|
|
static const char pipe_name[] = "/glibc-tst-sem16";
|
|
|
|
static void
|
|
remove_sem (int status, void *arg)
|
|
{
|
|
sem_unlink (arg);
|
|
}
|
|
|
|
static void *
|
|
tf (void *arg)
|
|
{
|
|
pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, 0);
|
|
|
|
if (sem_wait (&sem) != 0)
|
|
{
|
|
printf ("error: sem_wait failed: %m");
|
|
exit (1);
|
|
}
|
|
|
|
if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, 0) != 0)
|
|
{
|
|
printf ("error: pthread_setcancelstate failed: %m");
|
|
exit (1);
|
|
}
|
|
|
|
/* Neither sem_unlink or sem_open should act on thread cancellation. */
|
|
sem_unlink (pipe_name);
|
|
on_exit (remove_sem, (void *) pipe_name);
|
|
|
|
sem_t *s = sem_open (pipe_name, O_CREAT, 0600, 1);
|
|
if (s == SEM_FAILED)
|
|
{
|
|
int exit_code;
|
|
if (errno == ENOSYS || errno == EACCES)
|
|
exit_code = 77;
|
|
else
|
|
exit_code = 1;
|
|
exit (exit_code);
|
|
}
|
|
|
|
if (pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, 0) != 0)
|
|
{
|
|
printf ("error: pthread_setcancelstate failed: %m");
|
|
exit (1);
|
|
}
|
|
|
|
if (sem_close (s) != 0)
|
|
{
|
|
printf ("error: sem_close failed: %m");
|
|
exit (1);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
pthread_t td;
|
|
|
|
if (sem_init (&sem, 0, 0))
|
|
{
|
|
printf ("error: sem_init failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (pthread_create (&td, NULL, tf, NULL) != 0)
|
|
{
|
|
printf ("error: pthread_create failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (pthread_cancel (td) != 0)
|
|
{
|
|
printf ("error: pthread_cancel failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (sem_post (&sem) != 0)
|
|
{
|
|
printf ("error: sem_post failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
void *r;
|
|
if (pthread_join (td, &r) != 0)
|
|
{
|
|
printf ("error: pthread_join failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (r == PTHREAD_CANCELED)
|
|
{
|
|
puts ("error: pthread_join returned PTHREAD_CANCELED");
|
|
exit (1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include <test-skeleton.c>
|