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1 | // Compatibility symbols for previous versions, C++0x bits -*- C++ -*- |
2 | ||
a5544970 | 3 | // Copyright (C) 2009-2019 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 | ||
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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(); } | |
79a88477 | 112 | void _M_join() { std::call_once(_M_once, &thread::join, &_M_thread); } |
f2f08be7 JW |
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 | ||
79a88477 JW |
120 | // Explicit instantiation due to -fno-implicit-templates. |
121 | template void call_once(once_flag&, void (thread::*&&)(), thread*&&); | |
f2f08be7 | 122 | #endif // _GLIBCXX_HAVE_TLS |
3dd808fe JW |
123 | _GLIBCXX_END_NAMESPACE_VERSION |
124 | } // namespace std | |
f2f08be7 | 125 | #endif // _GLIBCXX_SHARED |
3dd808fe | 126 | #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1 |