summaryrefslogtreecommitdiff
path: root/nptl/tst-cancel15.c
blob: b507390b43a27d2d73e66ead98ad7a0cfb92a4b5 (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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/* Test sem_timedwait cancellation for contended case.
   Copyright (C) 2003-2017 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>
#include <sys/time.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)
{
  int e;

  pthread_cleanup_push (cleanup, NULL);

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

  struct timeval tv;
  (void) gettimeofday (&tv, NULL);

  struct timespec ts;
  TIMEVAL_TO_TIMESPEC (&tv, &ts);

  /* Timeout in 5 seconds.  */
  ts.tv_sec += 5;

  /* This call should block and be cancelable.  */
  errno = 0;
  e = sem_timedwait (&sem, &ts);

  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);
    }

  if (sem_init (&sem, 0, 0) != 0)
    {
      puts ("error: sem_init failed");
      exit (1);
    }

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

  /* Give the child a chance to go to sleep in sem_wait.  */
  sleep (1);

  /* Check whether cancellation is honored when waiting in sem_timedwait.  */
  if (pthread_cancel (th) != 0)
    {
      puts ("error: 1st cancel failed");
      exit (1);
    }

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