1//===---------------- condition_variable_destructor.cpp ------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// Define ~condition_variable.
10//
11// On some platforms ~condition_variable has been made trivial and the
12// definition is only provided for ABI compatibility.
13
14#include "__config"
15#include "__threading_support"
16
17#if !defined(_LIBCPP_HAS_NO_THREADS)
18# if _LIBCPP_ABI_VERSION == 1 || !defined(_LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION)
19#   define NEEDS_CONDVAR_DESTRUCTOR
20# endif
21#endif
22
23_LIBCPP_BEGIN_NAMESPACE_STD
24
25#ifdef NEEDS_CONDVAR_DESTRUCTOR
26
27class _LIBCPP_TYPE_VIS condition_variable
28{
29    __libcpp_condvar_t __cv_ = _LIBCPP_CONDVAR_INITIALIZER;
30public:
31    _LIBCPP_INLINE_VISIBILITY
32    constexpr condition_variable() noexcept = default;
33
34    ~condition_variable();
35
36    condition_variable(const condition_variable&) = delete;
37    condition_variable& operator=(const condition_variable&)  = delete;
38};
39
40condition_variable::~condition_variable()
41{
42    __libcpp_condvar_destroy(&__cv_);
43}
44#endif
45
46_LIBCPP_END_NAMESPACE_STD
47