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glibc/nptl/tst-cancel16.c
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/* Copyright (C) 2003-2016 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 <errno.h> | |
#include <pthread.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
#include <sys/mman.h> | |
#include <sys/wait.h> | |
static pthread_barrier_t b2; | |
static int fd; | |
static int called; | |
static void | |
cl (void *arg) | |
{ | |
called = 1; | |
} | |
static void * | |
tf (void *arg) | |
{ | |
int r = pthread_barrier_wait (&b2); | |
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("child thread: barrier_wait failed"); | |
exit (1); | |
} | |
pthread_cleanup_push (cl, NULL); | |
/* This call should never return. */ | |
(void) lockf (fd, F_LOCK, 0); | |
pthread_cleanup_pop (0); | |
return NULL; | |
} | |
static int | |
do_test (void) | |
{ | |
char fname[] = "/tmp/cancel16XXXXXX"; | |
fd = mkstemp (fname); | |
if (fd == -1) | |
{ | |
puts ("mkstemp failed"); | |
return 1; | |
} | |
unlink (fname); | |
char mem[sizeof (pthread_barrier_t)]; | |
memset (mem, '\0', sizeof (mem)); | |
if (TEMP_FAILURE_RETRY (pwrite (fd, mem, sizeof (mem), 0)) != sizeof (mem)) | |
{ | |
puts ("pwrite failed"); | |
return 1; | |
} | |
void *p = mmap (NULL, sizeof (mem), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); | |
if (p == MAP_FAILED) | |
{ | |
puts ("mmap failed"); | |
return 1; | |
} | |
pthread_barrier_t *b = (pthread_barrier_t *) p; | |
pthread_barrierattr_t ba; | |
if (pthread_barrierattr_init (&ba) != 0) | |
{ | |
puts ("barrierattr_init failed"); | |
return 1; | |
} | |
if (pthread_barrierattr_setpshared (&ba, 1) != 0) | |
{ | |
puts ("barrierattr_setshared failed"); | |
return 1; | |
} | |
if (pthread_barrier_init (b, &ba, 2) != 0) | |
{ | |
puts ("1st barrier_init failed"); | |
return 1; | |
} | |
if (pthread_barrierattr_destroy (&ba) != 0) | |
{ | |
puts ("barrier_destroy failed"); | |
return 1; | |
} | |
pid_t pid = fork (); | |
if (pid == 0) | |
{ | |
/* Child. Lock the file and wait. */ | |
if (lockf (fd, F_LOCK, 0) != 0) | |
{ | |
puts ("child process: lockf failed"); | |
_exit (1); | |
} | |
int r = pthread_barrier_wait (b); | |
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("child process: 1st barrier_wait failed"); | |
_exit (1); | |
} | |
/* Make sure the process dies. */ | |
alarm (5); | |
r = pthread_barrier_wait (b); | |
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("child process: 2nd barrier_wait failed"); | |
_exit (1); | |
} | |
_exit (0); | |
} | |
if (pid == -1) | |
{ | |
puts ("fork failed"); | |
return 1; | |
} | |
int r = pthread_barrier_wait (b); | |
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("main: 1st barrier_wait failed"); | |
_exit (1); | |
} | |
if (pthread_barrier_init (&b2, NULL, 2) != 0) | |
{ | |
puts ("2nd barrier_init failed"); | |
return 1; | |
} | |
pthread_t th; | |
if (pthread_create (&th, NULL, tf, NULL) != 0) | |
{ | |
puts ("create failed"); | |
return 1; | |
} | |
r = pthread_barrier_wait (&b2); | |
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("main: 2nd barrier_wait failed"); | |
return 1; | |
} | |
/* Delay. */ | |
sleep (1); | |
if (pthread_cancel (th) != 0) | |
{ | |
puts ("cancel failed"); | |
return 1; | |
} | |
void *result; | |
if (pthread_join (th, &result) != 0) | |
{ | |
puts ("join failed"); | |
return 1; | |
} | |
if (result != PTHREAD_CANCELED) | |
{ | |
puts ("thread not canceled"); | |
return 1; | |
} | |
if (called == 0) | |
{ | |
puts ("cleanup handler not called"); | |
return 1; | |
} | |
r = pthread_barrier_wait (b); | |
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("main: 3rd barrier_wait failed"); | |
return 1; | |
} | |
int status; | |
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) | |
{ | |
puts ("waitpid failed"); | |
return 1; | |
} | |
if (WEXITSTATUS (status) != 0) | |
{ | |
printf ("child process exits with %d\n", WEXITSTATUS (status)); | |
return 1; | |
} | |
if (lockf (fd, F_LOCK, 0) != 0) | |
{ | |
puts ("main: lockf failed"); | |
return 1; | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |