1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
|
/* Copyright (C) 2003-2014 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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static pthread_barrier_t bar;
static int global;
static void
cleanup (void *arg)
{
global = 1;
}
static void *
tf (void *arg)
{
/* Enable cancellation, but defer it. */
if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL) != 0)
{
puts ("setcancelstate failed");
exit (1);
}
if (pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, NULL) != 0)
{
puts ("setcanceltype failed");
exit (1);
}
/* Add cleanup handler. */
pthread_cleanup_push (cleanup, NULL);
/* Synchronize with the main thread. */
int r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("tf: first barrier_wait failed");
exit (1);
}
/* And again. Once this is done the main thread should have canceled
this thread. */
r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("tf: second barrier_wait failed");
exit (1);
}
/* Remove the cleanup handler without executing it. */
pthread_cleanup_pop (0);
/* Now react on the cancellation. */
pthread_testcancel ();
/* This call should never return. */
return NULL;
}
static int
do_test (void)
{
if (pthread_barrier_init (&bar, NULL, 2) != 0)
{
puts ("barrier_init failed");
exit (1);
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("pthread_create failed");
return 1;
}
int r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("first barrier_wait failed");
exit (1);
}
if (pthread_cancel (th) != 0)
{
puts ("pthread_cancel failed");
return 1;
}
r = pthread_barrier_wait (&bar);
if (r != 0 && r!= PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("second barrier_wait failed");
exit (1);
}
void *result;
if (pthread_join (th, &result) != 0)
{
puts ("pthread_join failed");
return 1;
}
if (result != PTHREAD_CANCELED)
{
puts ("thread was not canceled");
exit (1);
}
if (global != 0)
{
puts ("cancellation handler has been called");
exit (1);
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|