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glibc/nptl/tst-join5.c
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/* Copyright (C) 2003, 2006 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, write to the Free | |
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
02111-1307 USA. */ | |
#include <errno.h> | |
#include <pthread.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <time.h> | |
#include <unistd.h> | |
#include <sys/syscall.h> | |
#define wait_code() \ | |
do { \ | |
struct timespec ts = { .tv_sec = 0, .tv_nsec = 200000000 }; \ | |
while (syscall (__NR_nanosleep, &ts, &ts) < 0) \ | |
/* nothing */; \ | |
} while (0) | |
#ifdef WAIT_IN_CHILD | |
static pthread_barrier_t b; | |
#endif | |
static void * | |
tf1 (void *arg) | |
{ | |
#ifdef WAIT_IN_CHILD | |
int e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
printf ("%s: barrier_wait failed\n", __func__); | |
exit (1); | |
} | |
wait_code (); | |
#endif | |
pthread_join ((pthread_t) arg, NULL); | |
exit (42); | |
} | |
static void * | |
tf2 (void *arg) | |
{ | |
#ifdef WAIT_IN_CHILD | |
int e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
printf ("%s: barrier_wait failed\n", __func__); | |
exit (1); | |
} | |
wait_code (); | |
#endif | |
pthread_join ((pthread_t) arg, NULL); | |
exit (43); | |
} | |
static int | |
do_test (void) | |
{ | |
#ifdef WAIT_IN_CHILD | |
if (pthread_barrier_init (&b, NULL, 2) != 0) | |
{ | |
puts ("barrier_init failed"); | |
return 1; | |
} | |
#endif | |
pthread_t th; | |
int err = pthread_join (pthread_self (), NULL); | |
if (err == 0) | |
{ | |
puts ("1st circular join succeeded"); | |
return 1; | |
} | |
if (err != EDEADLK) | |
{ | |
printf ("1st circular join %d, not EDEADLK\n", err); | |
return 1; | |
} | |
if (pthread_create (&th, NULL, tf1, (void *) pthread_self ()) != 0) | |
{ | |
puts ("1st create failed"); | |
return 1; | |
} | |
#ifndef WAIT_IN_CHILD | |
wait_code (); | |
#endif | |
if (pthread_cancel (th) != 0) | |
{ | |
puts ("cannot cancel 1st thread"); | |
return 1; | |
} | |
#ifdef WAIT_IN_CHILD | |
int e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
printf ("%s: barrier_wait failed\n", __func__); | |
return 1; | |
} | |
#endif | |
void *r; | |
err = pthread_join (th, &r); | |
if (err != 0) | |
{ | |
printf ("cannot join 1st thread: %d\n", err); | |
return 1; | |
} | |
if (r != PTHREAD_CANCELED) | |
{ | |
puts ("1st thread not canceled"); | |
return 1; | |
} | |
err = pthread_join (pthread_self (), NULL); | |
if (err == 0) | |
{ | |
puts ("2nd circular join succeeded"); | |
return 1; | |
} | |
if (err != EDEADLK) | |
{ | |
printf ("2nd circular join %d, not EDEADLK\n", err); | |
return 1; | |
} | |
if (pthread_create (&th, NULL, tf2, (void *) pthread_self ()) != 0) | |
{ | |
puts ("2nd create failed"); | |
return 1; | |
} | |
#ifndef WAIT_IN_CHILD | |
wait_code (); | |
#endif | |
if (pthread_cancel (th) != 0) | |
{ | |
puts ("cannot cancel 2nd thread"); | |
return 1; | |
} | |
#ifdef WAIT_IN_CHILD | |
e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
printf ("%s: barrier_wait failed\n", __func__); | |
return 1; | |
} | |
#endif | |
if (pthread_join (th, &r) != 0) | |
{ | |
puts ("cannot join 2nd thread"); | |
return 1; | |
} | |
if (r != PTHREAD_CANCELED) | |
{ | |
puts ("2nd thread not canceled"); | |
return 1; | |
} | |
err = pthread_join (pthread_self (), NULL); | |
if (err == 0) | |
{ | |
puts ("3rd circular join succeeded"); | |
return 1; | |
} | |
if (err != EDEADLK) | |
{ | |
printf ("3rd circular join %d, not EDEADLK\n", err); | |
return 1; | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |