blob: 54862627ec51da731ff4d0a107ad71dde22e1dc2 (
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
|
// Compatibility symbols for previous versions, C++0x bits -*- C++ -*-
// Copyright (C) 2013-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This 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 General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
#include <bits/c++config.h>
#if __cplusplus < 201103L
# error "compatibility-condvar-c++0x.cc must be compiled with -std=gnu++11"
#endif
#if _GLIBCXX_INLINE_VERSION
# error "compatibility-thread-c++0x.cc is not needed for gnu-versioned-namespace"
#endif
#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
#define condition_variable_any condition_variable_anyXX
#include <condition_variable>
#undef condition_variable_any
// XXX GLIBCXX_ABI Deprecated
// gcc-4.9.0
// std::condition_variable_any replaced with std::_V2::condition_variable_any
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
class condition_variable_any
{
condition_variable _M_cond;
mutex _M_mutex;
public:
condition_variable_any() noexcept;
~condition_variable_any() noexcept;
};
condition_variable_any::condition_variable_any() noexcept = default;
condition_variable_any::~condition_variable_any() noexcept = default;
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#if ! _GLIBCXX_INLINE_VERSION
// XXX GLIBCXX_ABI Deprecated
// gcc-12.1
// std::condition_variable::wait changed to noexcept(false)
#if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \
&& defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
&& defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
namespace
{
// Pointer-to-member for private std::condition_variable::_M_cond member.
std::__condvar std::condition_variable::* __base_member;
template<std::__condvar std::condition_variable::*X>
struct cracker
{ static std::__condvar std::condition_variable::* value; };
// Initializer for this static member also initializes __base_member.
template<std::__condvar std::condition_variable::*X>
std::__condvar std::condition_variable::*
cracker<X>::value = __base_member = X;
// Explicit instantiation is allowed to access the private member.
template class cracker<&std::condition_variable::_M_cond>;
}
struct __nothrow_wait_cv : std::condition_variable
{
void wait(std::unique_lock<std::mutex>&) noexcept;
};
__attribute__((used))
void
__nothrow_wait_cv::wait(std::unique_lock<std::mutex>& lock) noexcept
{
// In theory this could be simply this->std::condition_variable::wait(lock)
// but with uclibc that binds to the @GLIBCXX_3.4.11 symbol, see PR 105730.
(this->*__base_member).wait(*lock.mutex());
}
} // namespace __gnu_cxx
// Export a noexcept wrapper around std::condition_variable::wait
// with the original @GLIBCXX_3.4.11 symbol version.
asm(
".symver _ZN9__gnu_cxx17__nothrow_wait_cv4waitERSt11unique_lockISt5mutexE,"
"_ZNSt18condition_variable4waitERSt11unique_lockISt5mutexE@GLIBCXX_3.4.11"
);
#endif
#endif
#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1
|
