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89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
/* Copyright (C) 2003-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <semaphore.h>
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#include <signal.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <pthreaddef.h>
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extern pthread_barrier_t b;
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#define TOTAL_SIGS 1000
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extern int nsigs;
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extern sem_t s;
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static __thread void (*fp) (void);
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#define THE_SIG SIGUSR1
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void
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handler (int sig)
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{
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if (sig != THE_SIG)
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{
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write (STDOUT_FILENO, "wrong signal\n", 13);
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_exit (1);
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}
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fp ();
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if (sem_post (&s) != 0)
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{
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write (STDOUT_FILENO, "sem_post failed\n", 16);
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_exit (1);
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}
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}
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void *
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tf (void *arg)
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{
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if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))
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{
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puts ("thread's struct pthread not aligned enough");
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exit (1);
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}
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if (fp != NULL)
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{
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puts ("fp not initially NULL");
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exit (1);
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}
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fp = arg;
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pthread_barrier_wait (&b);
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pthread_barrier_wait (&b);
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if (nsigs != TOTAL_SIGS)
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{
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puts ("barrier_wait prematurely returns");
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exit (1);
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}
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return NULL;
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}
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