1/* Copyright (C) 2002-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <shlib-compat.h>
19#include "pthreadP.h"
20#include <stap-probe.h>
21#include <string.h>
22
23
24/* See __pthread_cond_wait for details. */
25int
26__pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t *cond_attr)
27{
28 ASSERT_TYPE_SIZE (pthread_cond_t, __SIZEOF_PTHREAD_COND_T);
29
30 struct pthread_condattr *icond_attr = (struct pthread_condattr *) cond_attr;
31
32 memset (cond, 0, sizeof (pthread_cond_t));
33
34 /* Update the pretty printers if the internal representation of icond_attr
35 is changed. */
36
37 /* Iff not equal to ~0l, this is a PTHREAD_PROCESS_PRIVATE condvar. */
38 if (icond_attr != NULL && (icond_attr->value & 1) != 0)
39 cond->__data.__wrefs |= __PTHREAD_COND_SHARED_MASK;
40 int clockid = (icond_attr != NULL
41 ? ((icond_attr->value >> 1) & ((1 << COND_CLOCK_BITS) - 1))
42 : CLOCK_REALTIME);
43 /* If 0, CLOCK_REALTIME is used; CLOCK_MONOTONIC otherwise. */
44 if (clockid != CLOCK_REALTIME)
45 cond->__data.__wrefs |= __PTHREAD_COND_CLOCK_MONOTONIC_MASK;
46
47 LIBC_PROBE (cond_init, 2, cond, cond_attr);
48
49 return 0;
50}
51libc_hidden_def (__pthread_cond_init)
52versioned_symbol (libc, __pthread_cond_init,
53 pthread_cond_init, GLIBC_2_3_2);
54