738 lines
21 KiB
C++
738 lines
21 KiB
C++
// -*- C++ -*- header.
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// Copyright (C) 2008, 2009, 2010
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// 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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/** @file bits/atomic_0.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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#ifndef _GLIBCXX_ATOMIC_0_H
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#define _GLIBCXX_ATOMIC_0_H 1
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#pragma GCC system_header
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_GLIBCXX_BEGIN_NAMESPACE(std)
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// 0 == __atomic0 == Never lock-free
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namespace __atomic0
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{
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_GLIBCXX_BEGIN_EXTERN_C
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void
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atomic_flag_clear_explicit(__atomic_flag_base*, memory_order)
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_GLIBCXX_NOTHROW;
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void
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__atomic_flag_wait_explicit(__atomic_flag_base*, memory_order)
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_GLIBCXX_NOTHROW;
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_GLIBCXX_CONST __atomic_flag_base*
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__atomic_flag_for_address(const volatile void* __z) _GLIBCXX_NOTHROW;
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_GLIBCXX_END_EXTERN_C
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// Implementation specific defines.
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#define _ATOMIC_MEMBER_ _M_i
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// Implementation specific defines.
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#define _ATOMIC_LOAD_(__a, __x) \
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({typedef __typeof__(_ATOMIC_MEMBER_) __i_type; \
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__i_type* __p = &_ATOMIC_MEMBER_; \
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__atomic_flag_base* __g = __atomic_flag_for_address(__p); \
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__atomic_flag_wait_explicit(__g, __x); \
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__i_type __r = *__p; \
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atomic_flag_clear_explicit(__g, __x); \
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__r; })
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#define _ATOMIC_STORE_(__a, __m, __x) \
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({typedef __typeof__(_ATOMIC_MEMBER_) __i_type; \
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__i_type* __p = &_ATOMIC_MEMBER_; \
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__typeof__(__m) __v = (__m); \
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__atomic_flag_base* __g = __atomic_flag_for_address(__p); \
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__atomic_flag_wait_explicit(__g, __x); \
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*__p = __v; \
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atomic_flag_clear_explicit(__g, __x); \
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__v; })
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#define _ATOMIC_MODIFY_(__a, __o, __m, __x) \
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({typedef __typeof__(_ATOMIC_MEMBER_) __i_type; \
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__i_type* __p = &_ATOMIC_MEMBER_; \
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__typeof__(__m) __v = (__m); \
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__atomic_flag_base* __g = __atomic_flag_for_address(__p); \
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__atomic_flag_wait_explicit(__g, __x); \
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__i_type __r = *__p; \
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*__p __o __v; \
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atomic_flag_clear_explicit(__g, __x); \
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__r; })
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#define _ATOMIC_CMPEXCHNG_(__a, __e, __m, __x) \
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({typedef __typeof__(_ATOMIC_MEMBER_) __i_type; \
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__i_type* __p = &_ATOMIC_MEMBER_; \
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__typeof__(__e) __q = (__e); \
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__typeof__(__m) __v = (__m); \
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bool __r; \
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__atomic_flag_base* __g = __atomic_flag_for_address(__p); \
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__atomic_flag_wait_explicit(__g, __x); \
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__i_type __t = *__p; \
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if (*__q == __t) \
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{ \
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*__p = (__i_type)__v; \
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__r = true; \
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} \
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else { *__q = __t; __r = false; } \
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atomic_flag_clear_explicit(__g, __x); \
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__r; })
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/// atomic_flag
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struct atomic_flag : public __atomic_flag_base
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{
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atomic_flag() = default;
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~atomic_flag() = default;
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atomic_flag(const atomic_flag&) = delete;
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atomic_flag& operator=(const atomic_flag&) = delete;
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atomic_flag& operator=(const atomic_flag&) volatile = delete;
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// Conversion to ATOMIC_FLAG_INIT.
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atomic_flag(bool __i): __atomic_flag_base({ __i }) { }
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bool
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test_and_set(memory_order __m = memory_order_seq_cst);
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bool
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test_and_set(memory_order __m = memory_order_seq_cst) volatile;
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void
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clear(memory_order __m = memory_order_seq_cst);
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void
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clear(memory_order __m = memory_order_seq_cst) volatile;
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};
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/// atomic_address
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struct atomic_address
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{
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private:
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void* _M_i;
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public:
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atomic_address() = default;
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~atomic_address() = default;
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atomic_address(const atomic_address&) = delete;
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atomic_address& operator=(const atomic_address&) = delete;
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atomic_address& operator=(const atomic_address&) volatile = delete;
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constexpr atomic_address(void* __v): _M_i (__v) { }
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bool
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is_lock_free() const { return false; }
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bool
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is_lock_free() const volatile { return false; }
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void
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store(void* __v, memory_order __m = memory_order_seq_cst)
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{
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__glibcxx_assert(__m != memory_order_acquire);
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__glibcxx_assert(__m != memory_order_acq_rel);
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__glibcxx_assert(__m != memory_order_consume);
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_ATOMIC_STORE_(this, __v, __m);
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}
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void
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store(void* __v, memory_order __m = memory_order_seq_cst) volatile
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{
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__glibcxx_assert(__m != memory_order_acquire);
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__glibcxx_assert(__m != memory_order_acq_rel);
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__glibcxx_assert(__m != memory_order_consume);
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_ATOMIC_STORE_(this, __v, __m);
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}
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void*
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load(memory_order __m = memory_order_seq_cst) const
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{
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__glibcxx_assert(__m != memory_order_release);
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__glibcxx_assert(__m != memory_order_acq_rel);
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return _ATOMIC_LOAD_(this, __m);
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}
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void*
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load(memory_order __m = memory_order_seq_cst) const volatile
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{
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__glibcxx_assert(__m != memory_order_release);
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__glibcxx_assert(__m != memory_order_acq_rel);
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return _ATOMIC_LOAD_(this, __m);
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}
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void*
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exchange(void* __v, memory_order __m = memory_order_seq_cst)
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{ return _ATOMIC_MODIFY_(this, =, __v, __m); }
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void*
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exchange(void* __v, memory_order __m = memory_order_seq_cst) volatile
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{ return _ATOMIC_MODIFY_(this, =, __v, __m); }
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bool
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compare_exchange_weak(void*& __v1, void* __v2, memory_order __m1,
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memory_order __m2)
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_weak(void*& __v1, void* __v2, memory_order __m1,
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memory_order __m2) volatile
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_weak(void*& __v1, void* __v2,
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memory_order __m = memory_order_seq_cst)
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{
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return compare_exchange_weak(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_weak(void*& __v1, void* __v2,
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memory_order __m = memory_order_seq_cst) volatile
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{
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return compare_exchange_weak(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_weak(const void*& __v1, const void* __v2,
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memory_order __m1, memory_order __m2)
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_weak(const void*& __v1, const void* __v2,
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memory_order __m1, memory_order __m2) volatile
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_weak(const void*& __v1, const void* __v2,
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memory_order __m = memory_order_seq_cst)
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{
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return compare_exchange_weak(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_weak(const void*& __v1, const void* __v2,
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memory_order __m = memory_order_seq_cst) volatile
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{
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return compare_exchange_weak(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_strong(void*& __v1, void* __v2, memory_order __m1,
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memory_order __m2)
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_strong(void*& __v1, void* __v2, memory_order __m1,
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memory_order __m2) volatile
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_strong(void*& __v1, void* __v2,
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memory_order __m = memory_order_seq_cst)
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{
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return compare_exchange_strong(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_strong(void*& __v1, void* __v2,
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memory_order __m = memory_order_seq_cst) volatile
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{
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return compare_exchange_strong(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_strong(const void*& __v1, const void* __v2,
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memory_order __m1, memory_order __m2)
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_strong(const void*& __v1, const void* __v2,
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memory_order __m1, memory_order __m2) volatile
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{
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__glibcxx_assert(__m2 != memory_order_release);
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__glibcxx_assert(__m2 != memory_order_acq_rel);
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__glibcxx_assert(__m2 <= __m1);
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return _ATOMIC_CMPEXCHNG_(this, &__v1, __v2, __m1);
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}
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bool
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compare_exchange_strong(const void*& __v1, const void* __v2,
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memory_order __m = memory_order_seq_cst)
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{
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return compare_exchange_strong(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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bool
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compare_exchange_strong(const void*& __v1, const void* __v2,
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memory_order __m = memory_order_seq_cst) volatile
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{
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return compare_exchange_strong(__v1, __v2, __m,
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__calculate_memory_order(__m));
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}
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void*
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fetch_add(ptrdiff_t __d, memory_order __m = memory_order_seq_cst)
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{
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void** __p = &(_M_i);
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__atomic_flag_base* __g = __atomic_flag_for_address(__p);
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__atomic_flag_wait_explicit(__g, __m);
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void* __r = *__p;
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*__p = (void*)((char*)(*__p) + __d);
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atomic_flag_clear_explicit(__g, __m);
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return __r;
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}
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void*
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fetch_add(ptrdiff_t __d, memory_order __m = memory_order_seq_cst) volatile
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{
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void* volatile* __p = &(_M_i);
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__atomic_flag_base* __g = __atomic_flag_for_address(__p);
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__atomic_flag_wait_explicit(__g, __m);
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void* __r = *__p;
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*__p = (void*)((char*)(*__p) + __d);
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atomic_flag_clear_explicit(__g, __m);
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return __r;
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}
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void*
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fetch_sub(ptrdiff_t __d, memory_order __m = memory_order_seq_cst)
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{
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void** __p = &(_M_i);
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__atomic_flag_base* __g = __atomic_flag_for_address(__p);
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__atomic_flag_wait_explicit(__g, __m);
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void* __r = *__p;
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*__p = (void*)((char*)(*__p) - __d);
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atomic_flag_clear_explicit(__g, __m);
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return __r;
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}
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void*
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fetch_sub(ptrdiff_t __d, memory_order __m = memory_order_seq_cst) volatile
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{
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void* volatile* __p = &(_M_i);
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__atomic_flag_base* __g = __atomic_flag_for_address(__p);
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__atomic_flag_wait_explicit(__g, __m);
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void* __r = *__p;
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*__p = (void*)((char*)(*__p) - __d);
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atomic_flag_clear_explicit(__g, __m);
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return __r;
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}
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operator void*() const
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{ return load(); }
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operator void*() const volatile
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{ return load(); }
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// XXX
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void*
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operator=(void* __v)
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{
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store(__v);
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return __v;
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}
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void*
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operator=(void* __v) volatile
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{
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store(__v);
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return __v;
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}
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void*
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operator+=(ptrdiff_t __d)
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{ return fetch_add(__d) + __d; }
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void*
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operator+=(ptrdiff_t __d) volatile
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{ return fetch_add(__d) + __d; }
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void*
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operator-=(ptrdiff_t __d)
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{ return fetch_sub(__d) - __d; }
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void*
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operator-=(ptrdiff_t __d) volatile
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{ return fetch_sub(__d) - __d; }
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};
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/// Base class for atomic integrals.
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//
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// For each of the integral types, define atomic_[integral type] struct
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//
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// atomic_bool bool
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// atomic_char char
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// atomic_schar signed char
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// atomic_uchar unsigned char
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// atomic_short short
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// atomic_ushort unsigned short
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// atomic_int int
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// atomic_uint unsigned int
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// atomic_long long
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// atomic_ulong unsigned long
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// atomic_llong long long
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// atomic_ullong unsigned long long
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// atomic_char16_t char16_t
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// atomic_char32_t char32_t
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// atomic_wchar_t wchar_t
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// Base type.
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// NB: Assuming _ITp is an integral scalar type that is 1, 2, 4, or 8 bytes,
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// since that is what GCC built-in functions for atomic memory access work on.
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template<typename _ITp>
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struct __atomic_base
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{
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private:
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typedef _ITp __int_type;
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__int_type _M_i;
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public:
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__atomic_base() = default;
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~__atomic_base() = default;
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__atomic_base(const __atomic_base&) = delete;
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__atomic_base& operator=(const __atomic_base&) = delete;
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__atomic_base& operator=(const __atomic_base&) volatile = delete;
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// Requires __int_type convertible to _M_base._M_i.
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constexpr __atomic_base(__int_type __i): _M_i (__i) { }
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operator __int_type() const
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{ return load(); }
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operator __int_type() const volatile
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{ return load(); }
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__int_type
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operator=(__int_type __i)
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{
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store(__i);
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return __i;
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}
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__int_type
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operator=(__int_type __i) volatile
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{
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store(__i);
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return __i;
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}
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__int_type
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operator++(int)
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{ return fetch_add(1); }
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|
|
__int_type
|
|
operator++(int) volatile
|
|
{ return fetch_add(1); }
|
|
|
|
__int_type
|
|
operator--(int)
|
|
{ return fetch_sub(1); }
|
|
|
|
__int_type
|
|
operator--(int) volatile
|
|
{ return fetch_sub(1); }
|
|
|
|
__int_type
|
|
operator++()
|
|
{ return fetch_add(1) + 1; }
|
|
|
|
__int_type
|
|
operator++() volatile
|
|
{ return fetch_add(1) + 1; }
|
|
|
|
__int_type
|
|
operator--()
|
|
{ return fetch_sub(1) - 1; }
|
|
|
|
__int_type
|
|
operator--() volatile
|
|
{ return fetch_sub(1) - 1; }
|
|
|
|
__int_type
|
|
operator+=(__int_type __i)
|
|
{ return fetch_add(__i) + __i; }
|
|
|
|
__int_type
|
|
operator+=(__int_type __i) volatile
|
|
{ return fetch_add(__i) + __i; }
|
|
|
|
__int_type
|
|
operator-=(__int_type __i)
|
|
{ return fetch_sub(__i) - __i; }
|
|
|
|
__int_type
|
|
operator-=(__int_type __i) volatile
|
|
{ return fetch_sub(__i) - __i; }
|
|
|
|
__int_type
|
|
operator&=(__int_type __i)
|
|
{ return fetch_and(__i) & __i; }
|
|
|
|
__int_type
|
|
operator&=(__int_type __i) volatile
|
|
{ return fetch_and(__i) & __i; }
|
|
|
|
__int_type
|
|
operator|=(__int_type __i)
|
|
{ return fetch_or(__i) | __i; }
|
|
|
|
__int_type
|
|
operator|=(__int_type __i) volatile
|
|
{ return fetch_or(__i) | __i; }
|
|
|
|
__int_type
|
|
operator^=(__int_type __i)
|
|
{ return fetch_xor(__i) ^ __i; }
|
|
|
|
__int_type
|
|
operator^=(__int_type __i) volatile
|
|
{ return fetch_xor(__i) ^ __i; }
|
|
|
|
bool
|
|
is_lock_free() const
|
|
{ return false; }
|
|
|
|
bool
|
|
is_lock_free() const volatile
|
|
{ return false; }
|
|
|
|
void
|
|
store(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{
|
|
__glibcxx_assert(__m != memory_order_acquire);
|
|
__glibcxx_assert(__m != memory_order_acq_rel);
|
|
__glibcxx_assert(__m != memory_order_consume);
|
|
_ATOMIC_STORE_(this, __i, __m);
|
|
}
|
|
|
|
void
|
|
store(__int_type __i, memory_order __m = memory_order_seq_cst) volatile
|
|
{
|
|
__glibcxx_assert(__m != memory_order_acquire);
|
|
__glibcxx_assert(__m != memory_order_acq_rel);
|
|
__glibcxx_assert(__m != memory_order_consume);
|
|
_ATOMIC_STORE_(this, __i, __m);
|
|
}
|
|
|
|
__int_type
|
|
load(memory_order __m = memory_order_seq_cst) const
|
|
{
|
|
__glibcxx_assert(__m != memory_order_release);
|
|
__glibcxx_assert(__m != memory_order_acq_rel);
|
|
return _ATOMIC_LOAD_(this, __m);
|
|
}
|
|
|
|
__int_type
|
|
load(memory_order __m = memory_order_seq_cst) const volatile
|
|
{
|
|
__glibcxx_assert(__m != memory_order_release);
|
|
__glibcxx_assert(__m != memory_order_acq_rel);
|
|
return _ATOMIC_LOAD_(this, __m);
|
|
}
|
|
|
|
__int_type
|
|
exchange(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{ return _ATOMIC_MODIFY_(this, =, __i, __m); }
|
|
|
|
__int_type
|
|
exchange(__int_type __i, memory_order __m = memory_order_seq_cst) volatile
|
|
{ return _ATOMIC_MODIFY_(this, =, __i, __m); }
|
|
|
|
bool
|
|
compare_exchange_weak(__int_type& __i1, __int_type __i2,
|
|
memory_order __m1, memory_order __m2)
|
|
{
|
|
__glibcxx_assert(__m2 != memory_order_release);
|
|
__glibcxx_assert(__m2 != memory_order_acq_rel);
|
|
__glibcxx_assert(__m2 <= __m1);
|
|
return _ATOMIC_CMPEXCHNG_(this, &__i1, __i2, __m1);
|
|
}
|
|
|
|
bool
|
|
compare_exchange_weak(__int_type& __i1, __int_type __i2,
|
|
memory_order __m1, memory_order __m2) volatile
|
|
{
|
|
__glibcxx_assert(__m2 != memory_order_release);
|
|
__glibcxx_assert(__m2 != memory_order_acq_rel);
|
|
__glibcxx_assert(__m2 <= __m1);
|
|
return _ATOMIC_CMPEXCHNG_(this, &__i1, __i2, __m1);
|
|
}
|
|
|
|
bool
|
|
compare_exchange_weak(__int_type& __i1, __int_type __i2,
|
|
memory_order __m = memory_order_seq_cst)
|
|
{
|
|
return compare_exchange_weak(__i1, __i2, __m,
|
|
__calculate_memory_order(__m));
|
|
}
|
|
|
|
bool
|
|
compare_exchange_weak(__int_type& __i1, __int_type __i2,
|
|
memory_order __m = memory_order_seq_cst) volatile
|
|
{
|
|
return compare_exchange_weak(__i1, __i2, __m,
|
|
__calculate_memory_order(__m));
|
|
}
|
|
|
|
bool
|
|
compare_exchange_strong(__int_type& __i1, __int_type __i2,
|
|
memory_order __m1, memory_order __m2)
|
|
{
|
|
__glibcxx_assert(__m2 != memory_order_release);
|
|
__glibcxx_assert(__m2 != memory_order_acq_rel);
|
|
__glibcxx_assert(__m2 <= __m1);
|
|
return _ATOMIC_CMPEXCHNG_(this, &__i1, __i2, __m1);
|
|
}
|
|
|
|
bool
|
|
compare_exchange_strong(__int_type& __i1, __int_type __i2,
|
|
memory_order __m1, memory_order __m2) volatile
|
|
{
|
|
__glibcxx_assert(__m2 != memory_order_release);
|
|
__glibcxx_assert(__m2 != memory_order_acq_rel);
|
|
__glibcxx_assert(__m2 <= __m1);
|
|
return _ATOMIC_CMPEXCHNG_(this, &__i1, __i2, __m1);
|
|
}
|
|
|
|
bool
|
|
compare_exchange_strong(__int_type& __i1, __int_type __i2,
|
|
memory_order __m = memory_order_seq_cst)
|
|
{
|
|
return compare_exchange_strong(__i1, __i2, __m,
|
|
__calculate_memory_order(__m));
|
|
}
|
|
|
|
bool
|
|
compare_exchange_strong(__int_type& __i1, __int_type __i2,
|
|
memory_order __m = memory_order_seq_cst) volatile
|
|
{
|
|
return compare_exchange_strong(__i1, __i2, __m,
|
|
__calculate_memory_order(__m));
|
|
}
|
|
|
|
__int_type
|
|
fetch_add(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{ return _ATOMIC_MODIFY_(this, +=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_add(__int_type __i,
|
|
memory_order __m = memory_order_seq_cst) volatile
|
|
{ return _ATOMIC_MODIFY_(this, +=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_sub(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{ return _ATOMIC_MODIFY_(this, -=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_sub(__int_type __i,
|
|
memory_order __m = memory_order_seq_cst) volatile
|
|
{ return _ATOMIC_MODIFY_(this, -=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_and(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{ return _ATOMIC_MODIFY_(this, &=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_and(__int_type __i,
|
|
memory_order __m = memory_order_seq_cst) volatile
|
|
{ return _ATOMIC_MODIFY_(this, &=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_or(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{ return _ATOMIC_MODIFY_(this, |=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_or(__int_type __i, memory_order __m = memory_order_seq_cst) volatile
|
|
{ return _ATOMIC_MODIFY_(this, |=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_xor(__int_type __i, memory_order __m = memory_order_seq_cst)
|
|
{ return _ATOMIC_MODIFY_(this, ^=, __i, __m); }
|
|
|
|
__int_type
|
|
fetch_xor(__int_type __i,
|
|
memory_order __m = memory_order_seq_cst) volatile
|
|
{ return _ATOMIC_MODIFY_(this, ^=, __i, __m); }
|
|
};
|
|
|
|
#undef _ATOMIC_LOAD_
|
|
#undef _ATOMIC_STORE_
|
|
#undef _ATOMIC_MODIFY_
|
|
#undef _ATOMIC_CMPEXCHNG_
|
|
} // namespace __atomic0
|
|
|
|
_GLIBCXX_END_NAMESPACE
|
|
|
|
#endif
|