| /* 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" |