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63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
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// future -*- C++ -*-
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// Copyright (C) 2009-2018 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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#include <future>
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#include <bits/functexcept.h>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
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__future_base::_Result_base::_Result_base() = default;
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__future_base::_Result_base::~_Result_base() = default;
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void
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__future_base::_State_baseV2::_Make_ready::_S_run(void* p)
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{
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unique_ptr<_Make_ready> mr{static_cast<_Make_ready*>(p)};
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if (auto state = mr->_M_shared_state.lock())
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{
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// Use release MO to synchronize with observers of the ready state.
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state->_M_status._M_store_notify_all(_Status::__ready,
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memory_order_release);
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}
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}
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// defined in src/c++11/condition_variable.cc
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extern void
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__at_thread_exit(__at_thread_exit_elt* elt);
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void
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__future_base::_State_baseV2::_Make_ready::_M_set()
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{
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_M_cb = &_Make_ready::_S_run;
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__at_thread_exit(this);
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}
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#endif
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace std
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