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/* 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, see
<http://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <semaphore.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#if HAVE___THREAD
static pthread_barrier_t* b = NULL;
#define TOTAL_SIGS 1000
static int* nsigs = NULL;
static sem_t* s = NULL;
static __thread void (*fp) (void);
#define THE_SIG SIGUSR1
void
handler (int sig)
{
if (sig != THE_SIG)
{
write (STDOUT_FILENO, "wrong signal\n", 13);
_exit (1);
}
fp ();
if (sem_post (s) != 0)
{
write (STDOUT_FILENO, "sem_post failed\n", 16);
_exit (1);
}
}
void
setup_tf (pthread_barrier_t* t_b, int* t_nsigs, sem_t* t_s)
{
b = t_b;
nsigs = t_nsigs;
s = t_s;
}
void *
tf (void *arg)
{
if (!b || !s || !nsigs)
{
puts ("need to call setup_tf first");
exit (1);
}
if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1))
{
puts ("thread's struct pthread not aligned enough");
exit (1);
}
if (fp != NULL)
{
printf("fp=%p\n", (void *)&fp);
puts ("fp not initially NULL");
exit (1);
}
fp = arg;
pthread_barrier_wait (b);
pthread_barrier_wait (b);
if (*nsigs != TOTAL_SIGS)
{
puts ("barrier_wait prematurely returns");
exit (1);
}
return NULL;
}
#endif
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