aboutsummaryrefslogtreecommitdiff
path: root/nptl/tst-cancel12.c
blob: bf94aa482ab5b27748262ec1c624b81fcc390825 (plain)
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
/* Test sem_wait cancellation for uncontended case.
   Copyright (C) 2003-2019 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 <semaphore.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>


static pthread_barrier_t bar;
static sem_t sem;


static void
cleanup (void *arg)
{
  static int ncall;

  if (++ncall != 1)
    {
      puts ("second call to cleanup");
      exit (1);
    }
}


static void *
tf (void *arg)
{
  pthread_cleanup_push (cleanup, NULL);

  int e = pthread_barrier_wait (&bar);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("error: tf: 1st barrier_wait failed");
      exit (1);
    }

  /* This call should be cancelable.  */
  sem_wait (&sem);

  pthread_cleanup_pop (0);

  return NULL;
}


static int
do_test (void)
{
  pthread_t th;

  if (pthread_barrier_init (&bar, NULL, 2) != 0)
    {
      puts ("error: barrier_init failed");
      exit (1);
    }

  /* A value higher than 0 will check for uncontended pthread cancellation,
     where the sem_wait operation will return immediatelly.  */
  if (sem_init (&sem, 0, 1) != 0)
    {
      puts ("error: sem_init failed");
      exit (1);
    }

  if (pthread_create (&th, NULL, tf, NULL) != 0)
    {
      puts ("error: create failed");
      exit (1);
    }

  if (pthread_cancel (th) != 0)
    {
      puts ("error: pthread_cancel failed");
      exit (1);
    }

  int e = pthread_barrier_wait (&bar);
  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
    {
      puts ("error: 1st barrier_wait failed");
      exit (1);
    }

  void *r;
  if (pthread_join (th, &r) != 0)
    {
      puts ("error: pthread_join failed");
      exit (1);
    }

  if (r != PTHREAD_CANCELED)
    {
      puts ("error: thread not canceled");
      exit (1);
    }

  return 0;
}


#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"