1/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <shlib-compat.h>
20#include "pthreadP.h"
21#include <stap-probe.h>
22#include <string.h>
23
24
25/* See __pthread_cond_wait for details. */
26int
27__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t *cond_attr)
28{
29 ASSERT_TYPE_SIZE (pthread_cond_t, __SIZEOF_PTHREAD_COND_T);
30
31 struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr;
32
33 memset (cond, 0, sizeof (pthread_cond_t));
34
35 /* Update the pretty printers if the internal representation of icond_attr
36 is changed. */
37
38 /* Iff not equal to ~0l, this is a PTHREAD_PROCESS_PRIVATE condvar. */
39 if (icond_attr != NULL && (icond_attr->value & 1) != 0)
40 cond->__data.__wrefs |= __PTHREAD_COND_SHARED_MASK;
41 int clockid = (icond_attr != NULL
42 ? ((icond_attr->value >> 1) & ((1 << COND_CLOCK_BITS) - 1))
43 : CLOCK_REALTIME);
44 /* If 0, CLOCK_REALTIME is used; CLOCK_MONOTONIC otherwise. */
45 if (clockid != CLOCK_REALTIME)
46 cond->__data.__wrefs |= __PTHREAD_COND_CLOCK_MONOTONIC_MASK;
47
48 LIBC_PROBE (cond_init, 2, cond, cond_attr);
49
50 return 0;
51}
52libc_hidden_def (__pthread_cond_init)
53versioned_symbol (libc, __pthread_cond_init,
54 pthread_cond_init, GLIBC_2_3_2);
55