]>
Commit | Line | Data |
---|---|---|
0b284728 BK |
1 | // Compatibility symbols for previous versions, C++0x bits -*- C++ -*- |
2 | ||
818ab71a | 3 | // Copyright (C) 2009-2016 Free Software Foundation, Inc. |
0b284728 BK |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This 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 | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // Under Section 7 of GPL version 3, you are granted additional | |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
24 | ||
3dd808fe | 25 | #include <bits/c++config.h> |
f2f08be7 | 26 | #if defined(_GLIBCXX_SHARED) |
3dd808fe JW |
27 | #define _GLIBCXX_ASYNC_ABI_COMPAT |
28 | #endif | |
29 | ||
0b284728 BK |
30 | #include <future> |
31 | #include <mutex> | |
c05986b9 | 32 | #include <functional> |
0b284728 | 33 | |
734f5023 | 34 | #if __cplusplus < 201103L |
3dd808fe | 35 | # error "compatibility-thread-c++0x.cc must be compiled with -std=gnu++0x" |
0b284728 BK |
36 | #endif |
37 | ||
38 | #define _GLIBCXX_ASM_SYMVER(cur, old, version) \ | |
39 | asm (".symver " #cur "," #old "@@@" #version); | |
40 | ||
41 | // XXX GLIBCXX_ABI Deprecated | |
42 | // gcc-4.6.0 | |
43 | // <future> export changes | |
ac6d1200 | 44 | #if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \ |
0b284728 BK |
45 | && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \ |
46 | && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT) | |
47 | ||
48 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) | |
49 | { | |
50 | const std::error_category* future_category = &std::future_category(); | |
51 | } | |
52 | ||
53 | _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx15future_categoryE, _ZSt15future_category, GLIBCXX_3.4.14) | |
54 | ||
55 | #endif | |
56 | ||
57 | // XXX GLIBCXX_ABI Deprecated | |
58 | // gcc-4.6.0 | |
59 | // <mutex> export changes | |
60 | #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) | |
ac6d1200 | 61 | #if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \ |
0b284728 BK |
62 | && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \ |
63 | && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT) | |
64 | ||
65 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) | |
66 | { | |
67 | std::defer_lock_t defer_lock; | |
68 | std::try_to_lock_t try_to_lock; | |
69 | std::adopt_lock_t adopt_lock; | |
70 | } | |
71 | ||
72 | _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx10adopt_lockE, _ZSt10adopt_lock, GLIBCXX_3.4.11) | |
73 | _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx10defer_lockE, _ZSt10defer_lock, GLIBCXX_3.4.11) | |
74 | _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx11try_to_lockE, _ZSt11try_to_lock, GLIBCXX_3.4.11) | |
75 | ||
76 | ||
77 | #endif | |
78 | #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1 | |
3dd808fe JW |
79 | |
80 | ||
81 | // XXX GLIBCXX_ABI Deprecated | |
f2f08be7 | 82 | // gcc-4.7.0, gcc-4.9.0 |
3dd808fe JW |
83 | // <future> export changes |
84 | #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) \ | |
85 | && (ATOMIC_INT_LOCK_FREE > 1) | |
f2f08be7 | 86 | #if defined(_GLIBCXX_SHARED) |
3dd808fe JW |
87 | namespace std _GLIBCXX_VISIBILITY(default) |
88 | { | |
89 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
f2f08be7 JW |
90 | // Replaced by _State_baseV2 in gcc-4.9.0 |
91 | class __future_base::_State_base | |
92 | { | |
93 | typedef _Ptr<_Result_base> _Ptr_type; | |
94 | ||
95 | _Ptr_type _M_result; | |
96 | mutex _M_mutex; | |
97 | condition_variable _M_cond; | |
98 | atomic_flag _M_retrieved; | |
99 | once_flag _M_once; | |
100 | public: | |
101 | virtual ~_State_base(); | |
102 | virtual void _M_run_deferred() { } | |
103 | }; | |
104 | __future_base::_State_base::~_State_base() { } | |
105 | ||
106 | // Replaced by _Async_state_commonV2 in gcc-4.9.0 | |
107 | class __future_base::_Async_state_common : public __future_base::_State_base | |
108 | { | |
109 | protected: | |
110 | ~_Async_state_common(); | |
111 | virtual void _M_run_deferred() { _M_join(); } | |
112 | void _M_join() { std::call_once(_M_once, &thread::join, ref(_M_thread)); } | |
113 | thread _M_thread; | |
114 | once_flag _M_once; | |
115 | }; | |
116 | #if defined(_GLIBCXX_HAVE_TLS) | |
117 | // Replaced with inline definition in gcc-4.8.0 | |
3dd808fe JW |
118 | __future_base::_Async_state_common::~_Async_state_common() { _M_join(); } |
119 | ||
de1d0794 JW |
120 | template<typename _Tp> |
121 | struct _Maybe_wrap_member_pointer; | |
122 | ||
123 | template<typename _Tp, typename _Class> | |
124 | struct _Maybe_wrap_member_pointer<_Tp _Class::*> | |
125 | { | |
126 | typedef _Mem_fn<_Tp _Class::*> type; | |
127 | ||
128 | static constexpr type | |
129 | __do_wrap(_Tp _Class::* __pm) | |
130 | { return type(__pm); } | |
131 | }; | |
132 | ||
3396fcc0 JW |
133 | template<typename _Signature> |
134 | struct _Bind_simple; | |
135 | ||
136 | template<typename _Callable, typename... _Args> | |
137 | struct _Bind_simple<_Callable(_Args...)> | |
138 | { | |
139 | typedef typename result_of<_Callable(_Args...)>::type result_type; | |
140 | ||
141 | template<typename _Tp, typename... _Up> | |
142 | explicit | |
143 | _Bind_simple(_Tp&& __f, _Up&&... __args) | |
144 | : _M_bound(std::forward<_Tp>(__f), std::forward<_Up>(__args)...) | |
145 | { } | |
146 | ||
147 | _Bind_simple(const _Bind_simple&) = default; | |
148 | _Bind_simple(_Bind_simple&&) = default; | |
149 | ||
150 | result_type | |
151 | operator()() | |
152 | { | |
153 | typedef typename _Build_index_tuple<sizeof...(_Args)>::__type _Indices; | |
154 | return _M_invoke(_Indices()); | |
155 | } | |
156 | ||
157 | private: | |
158 | template<std::size_t... _Indices> | |
159 | typename result_of<_Callable(_Args...)>::type | |
160 | _M_invoke(_Index_tuple<_Indices...>) | |
161 | { | |
162 | // std::bind always forwards bound arguments as lvalues, | |
163 | // but this type can call functions which only accept rvalues. | |
164 | return std::forward<_Callable>(std::get<0>(_M_bound))( | |
165 | std::forward<_Args>(std::get<_Indices+1>(_M_bound))...); | |
166 | } | |
167 | ||
168 | std::tuple<_Callable, _Args...> _M_bound; | |
169 | }; | |
170 | ||
171 | template<typename _Func, typename... _BoundArgs> | |
172 | struct _Bind_simple_helper | |
173 | { | |
174 | typedef _Maybe_wrap_member_pointer<typename decay<_Func>::type> | |
175 | __maybe_type; | |
176 | typedef typename __maybe_type::type __func_type; | |
177 | typedef _Bind_simple<__func_type(typename decay<_BoundArgs>::type...)> | |
178 | __type; | |
179 | }; | |
180 | ||
181 | // Simplified version of std::bind for internal use, without support for | |
182 | // unbound arguments, placeholders or nested bind expressions. | |
183 | template<typename _Callable, typename... _Args> | |
184 | typename _Bind_simple_helper<_Callable, _Args...>::__type | |
185 | __bind_simple(_Callable&& __callable, _Args&&... __args) | |
186 | { | |
187 | typedef _Bind_simple_helper<_Callable, _Args...> __helper_type; | |
188 | typedef typename __helper_type::__maybe_type __maybe_type; | |
189 | typedef typename __helper_type::__type __result_type; | |
190 | return __result_type( | |
191 | __maybe_type::__do_wrap( std::forward<_Callable>(__callable)), | |
192 | std::forward<_Args>(__args)...); | |
193 | } | |
194 | ||
3dd808fe JW |
195 | // Explicit instantiation due to -fno-implicit-instantiation. |
196 | template void call_once(once_flag&, void (thread::*&&)(), reference_wrapper<thread>&&); | |
197 | template _Bind_simple_helper<void (thread::*)(), reference_wrapper<thread>>::__type __bind_simple(void (thread::*&&)(), reference_wrapper<thread>&&); | |
f2f08be7 | 198 | #endif // _GLIBCXX_HAVE_TLS |
3dd808fe JW |
199 | _GLIBCXX_END_NAMESPACE_VERSION |
200 | } // namespace std | |
f2f08be7 | 201 | #endif // _GLIBCXX_SHARED |
3dd808fe | 202 | #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1 |