1 /* Test sem_wait cancellation for contended case.
2 Copyright (C) 2003-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
22 #include <semaphore.h>
29 static pthread_barrier_t bar
;
40 puts ("second call to cleanup");
49 pthread_cleanup_push (cleanup
, NULL
);
51 int e
= pthread_barrier_wait (&bar
);
52 if (e
!= 0 && e
!= PTHREAD_BARRIER_SERIAL_THREAD
)
54 puts ("error: tf: 1st barrier_wait failed");
58 /* This call should block and be cancelable. */
61 pthread_cleanup_pop (0);
72 if (pthread_barrier_init (&bar
, NULL
, 2) != 0)
74 puts ("error: barrier_init failed");
78 /* A value equal to 0 will check for contended pthread cancellation,
79 where the sem_wait operation will block. */
80 if (sem_init (&sem
, 0, 0) != 0)
82 puts ("error: sem_init failed");
86 if (pthread_create (&th
, NULL
, tf
, NULL
) != 0)
88 puts ("error: create failed");
92 int e
= pthread_barrier_wait (&bar
);
93 if (e
!= 0 && e
!= PTHREAD_BARRIER_SERIAL_THREAD
)
95 puts ("error: 1st barrier_wait failed");
99 /* Give the child a chance to go to sleep in sem_wait. */
102 /* Check whether cancellation is honored when waiting in sem_wait. */
103 if (pthread_cancel (th
) != 0)
105 puts ("error: 1st cancel failed");
110 if (pthread_join (th
, &r
) != 0)
112 puts ("error: join failed");
116 if (r
!= PTHREAD_CANCELED
)
118 puts ("thread not canceled");
126 #define TEST_FUNCTION do_test ()
127 #include "../test-skeleton.c"