libstdc++-v3/src/c++11/compatibility-thread-c++0x.cc

   1 // Compatibility symbols for previous versions, C++0x bits -*- C++ -*-
   2
   3 // Copyright (C) 2009-2013 Free Software Foundation, Inc.
   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
  25 #include <bits/c++config.h>
  26 #if defined(_GLIBCXX_HAVE_TLS) && defined(_GLIBCXX_SHARED)
  27 #define _GLIBCXX_ASYNC_ABI_COMPAT
  28 #endif
  29
  30 #include <future>
  31 #include <mutex>
  32
  33 #if __cplusplus < 201103L
  34 # error "compatibility-thread-c++0x.cc must be compiled with -std=gnu++0x"
  35 #endif
  36
  37 #define _GLIBCXX_ASM_SYMVER(cur, old, version) \
  38    asm (".symver " #cur "," #old "@@@" #version);
  39
  40 // XXX GLIBCXX_ABI Deprecated
  41 // gcc-4.6.0
  42 // <future> export changes
  43 #if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \
  44     && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
  45     && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
  46
  47 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
  48 {
  49   const std::error_category* future_category = &std::future_category();
  50 }
  51
  52 _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx15future_categoryE, _ZSt15future_category, GLIBCXX_3.4.14)
  53
  54 #endif
  55
  56 // XXX GLIBCXX_ABI Deprecated
  57 // gcc-4.6.0
  58 // <mutex> export changes
  59 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
  60 #if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \
  61     && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
  62     && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
  63
  64 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
  65 {
  66   std::defer_lock_t defer_lock;
  67   std::try_to_lock_t try_to_lock;
  68   std::adopt_lock_t adopt_lock;
  69 }
  70
  71 _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx10adopt_lockE, _ZSt10adopt_lock, GLIBCXX_3.4.11)
  72 _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx10defer_lockE, _ZSt10defer_lock, GLIBCXX_3.4.11)
  73 _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx11try_to_lockE, _ZSt11try_to_lock, GLIBCXX_3.4.11)
  74
  75
  76 #endif
  77 #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1
  78
  79
  80 // XXX GLIBCXX_ABI Deprecated
  81 // gcc-4.7.0
  82 // <future> export changes
  83 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1) \
  84   && (ATOMIC_INT_LOCK_FREE > 1)
  85 #if defined(_GLIBCXX_HAVE_TLS) && defined(_GLIBCXX_SHARED)
  86 namespace std _GLIBCXX_VISIBILITY(default)
  87 {
  88 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  89   __future_base::_Async_state_common::~_Async_state_common() { _M_join(); }
  90
  91   // Explicit instantiation due to -fno-implicit-instantiation.
  92   template void call_once(once_flag&, void (thread::*&&)(), reference_wrapper<thread>&&);
  93   template _Bind_simple_helper<void (thread::*)(), reference_wrapper<thread>>::__type __bind_simple(void (thread::*&&)(), reference_wrapper<thread>&&);
  94 _GLIBCXX_END_NAMESPACE_VERSION
  95 } // namespace std
  96 #endif
  97 #endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1