glibc/nptl/tst-cancel26.c

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/* Check for failure paths handling for cancellation points.
Copyright (C) 2015-2017 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 <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/* Check that the cancel syscall points handles both the errno and return code
correctly for invalid arguments. */
static void *
tf (void *arg)
{
#ifdef SET_CANCEL_DISABLE
pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL);
#endif
/* This is a cancellation point, but we should not be cancelled. */
int r = write (-1, 0, 0);
if (r != -1 || errno != EBADF)
{
printf ("error: write returned %d, errno %d\n", r, errno);
exit (1);
}
return NULL;
}
static int
do_test (void)
{
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("error: pthread_create failed");
exit (1);
}
if (pthread_join (th, NULL) != 0)
{
puts ("error: pthread_join failed");
exit (1);
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"