mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
439bf404b8
There is nothing in the POSIX specification to disallow a single-threaded program from cancelling itself, so we forcibly enable multiple_threads to allow the next available cancellation point in the thread to run. Also added additional tests to cover various cancellation scenarios.
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
/* Copyright (C) 2012 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "tst-cancel-self-cleanup.c"
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int ret = 0;
|
|
volatile int should_fail = 1;
|
|
|
|
pthread_cleanup_push (cleanup, &should_fail);
|
|
|
|
if ((ret = pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL)) != 0)
|
|
{
|
|
printf ("setcancelstate(disable) failed: %s\n", strerror (ret));
|
|
exit (1);
|
|
}
|
|
|
|
if ((ret = pthread_cancel (pthread_self ())) != 0)
|
|
{
|
|
printf ("cancel failed: %s\n", strerror (ret));
|
|
exit (1);
|
|
}
|
|
|
|
usleep (100);
|
|
should_fail = 0;
|
|
|
|
if ((ret = pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL)) != 0)
|
|
{
|
|
printf ("setcancelstate(enable) failed: %s\n", strerror (ret));
|
|
exit (1);
|
|
}
|
|
|
|
/* The write syscall within this printf should give us our cancellation
|
|
point. */
|
|
printf ("Could not cancel self.\n");
|
|
pthread_cleanup_pop (0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|