// -*- C++ -*- header.
-// Copyright (C) 2008, 2009
-// Free Software Foundation, Inc.
+// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
-/** @file atomic
+/** @file include/atomic
* This is a Standard C++ Library header.
*/
#pragma GCC system_header
#ifndef __GXX_EXPERIMENTAL_CXX0X__
-# include <c++0x_warning.h>
+# include <bits/c++0x_warning.h>
#endif
#include <bits/atomic_base.h>
-#include <cstddef>
+#include <bits/atomic_0.h>
+#include <bits/atomic_2.h>
-_GLIBCXX_BEGIN_NAMESPACE(std)
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @addtogroup atomics
* @{
*/
- /// kill_dependency
- template<typename _Tp>
- inline _Tp
- kill_dependency(_Tp __y)
- {
- _Tp ret(__y);
- return ret;
- }
-
- inline memory_order
- __calculate_memory_order(memory_order __m)
+ /// atomic_bool
+ // NB: No operators or fetch-operations for this type.
+ struct atomic_bool
{
- const bool __cond1 = __m == memory_order_release;
- const bool __cond2 = __m == memory_order_acq_rel;
- memory_order __mo1(__cond1 ? memory_order_relaxed : __m);
- memory_order __mo2(__cond2 ? memory_order_acquire : __mo1);
- return __mo2;
- }
-
- //
- // Three nested namespaces for atomic implementation details.
- //
- // The nested namespace inlined into std:: is determined by the value
- // of the _GLIBCXX_ATOMIC_PROPERTY macro and the resulting
- // ATOMIC_*_LOCK_FREE macros. See file atomic_base.h.
- //
- // 0 == __atomic0 == Never lock-free
- // 1 == __atomic1 == Best available, sometimes lock-free
- // 2 == __atomic2 == Always lock-free
-#include <bits/atomic_0.h>
-#include <bits/atomic_2.h>
+ private:
+ __atomic_base<bool> _M_base;
+
+ public:
+ atomic_bool() = default;
+ ~atomic_bool() = default;
+ atomic_bool(const atomic_bool&) = delete;
+ atomic_bool& operator=(const atomic_bool&) = delete;
+ atomic_bool& operator=(const atomic_bool&) volatile = delete;
+
+ constexpr atomic_bool(bool __i) : _M_base(__i) { }
+
+ bool
+ operator=(bool __i)
+ { return _M_base.operator=(__i); }
+
+ operator bool() const
+ { return _M_base.load(); }
+
+ operator bool() const volatile
+ { return _M_base.load(); }
+
+ bool
+ is_lock_free() const { return _M_base.is_lock_free(); }
+
+ bool
+ is_lock_free() const volatile { return _M_base.is_lock_free(); }
+
+ void
+ store(bool __i, memory_order __m = memory_order_seq_cst)
+ { _M_base.store(__i, __m); }
+
+ void
+ store(bool __i, memory_order __m = memory_order_seq_cst) volatile
+ { _M_base.store(__i, __m); }
+
+ bool
+ load(memory_order __m = memory_order_seq_cst) const
+ { return _M_base.load(__m); }
+
+ bool
+ load(memory_order __m = memory_order_seq_cst) const volatile
+ { return _M_base.load(__m); }
+
+ bool
+ exchange(bool __i, memory_order __m = memory_order_seq_cst)
+ { return _M_base.exchange(__i, __m); }
+
+ bool
+ exchange(bool __i, memory_order __m = memory_order_seq_cst) volatile
+ { return _M_base.exchange(__i, __m); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2)
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) volatile
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst)
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) volatile
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2)
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) volatile
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst)
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) volatile
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
+ };
+
/// atomic
/// 29.4.3, Generic atomic type, primary class template.
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(_Tp __i) : _M_i(__i) { }
+ constexpr atomic(_Tp __i) : _M_i(__i) { }
operator _Tp() const;
+ operator _Tp() const volatile;
+
_Tp
operator=(_Tp __i) { store(__i); return __i; }
+ _Tp
+ operator=(_Tp __i) volatile { store(__i); return __i; }
+
+ bool
+ is_lock_free() const;
+
bool
is_lock_free() const volatile;
void
+ store(_Tp, memory_order = memory_order_seq_cst);
+
+ void
store(_Tp, memory_order = memory_order_seq_cst) volatile;
_Tp
+ load(memory_order = memory_order_seq_cst) const;
+
+ _Tp
load(memory_order = memory_order_seq_cst) const volatile;
_Tp
+ exchange(_Tp __i, memory_order = memory_order_seq_cst);
+
+ _Tp
exchange(_Tp __i, memory_order = memory_order_seq_cst) volatile;
bool
+ compare_exchange_weak(_Tp&, _Tp, memory_order, memory_order);
+
+ bool
compare_exchange_weak(_Tp&, _Tp, memory_order, memory_order) volatile;
bool
- compare_exchange_strong(_Tp&, _Tp, memory_order, memory_order) volatile;
+ compare_exchange_weak(_Tp&, _Tp, memory_order = memory_order_seq_cst);
bool
compare_exchange_weak(_Tp&, _Tp,
memory_order = memory_order_seq_cst) volatile;
bool
+ compare_exchange_strong(_Tp&, _Tp, memory_order, memory_order);
+
+ bool
+ compare_exchange_strong(_Tp&, _Tp, memory_order, memory_order) volatile;
+
+ bool
+ compare_exchange_strong(_Tp&, _Tp, memory_order = memory_order_seq_cst);
+
+ bool
compare_exchange_strong(_Tp&, _Tp,
memory_order = memory_order_seq_cst) volatile;
};
/// Partial specialization for pointer types.
template<typename _Tp>
- struct atomic<_Tp*> : atomic_address
+ struct atomic<_Tp*>
{
+ typedef _Tp* __pointer_type;
+ typedef __atomic_base<_Tp*> __base_type;
+ __base_type _M_b;
+
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(_Tp* __v) : atomic_address(__v) { }
+ constexpr atomic(__pointer_type __p) : _M_b(__p) { }
- void
- store(_Tp*, memory_order = memory_order_seq_cst);
+ operator __pointer_type() const
+ { return __pointer_type(_M_b); }
- _Tp*
- load(memory_order = memory_order_seq_cst) const;
+ operator __pointer_type() const volatile
+ { return __pointer_type(_M_b); }
- _Tp*
- exchange(_Tp*, memory_order = memory_order_seq_cst);
+ __pointer_type
+ operator=(__pointer_type __p)
+ { return _M_b.operator=(__p); }
- bool
- compare_exchange_weak(_Tp*&, _Tp*, memory_order, memory_order);
+ __pointer_type
+ operator=(__pointer_type __p) volatile
+ { return _M_b.operator=(__p); }
- bool
- compare_exchange_strong(_Tp*&, _Tp*, memory_order, memory_order);
+ __pointer_type
+ operator++(int)
+ { return _M_b++; }
+
+ __pointer_type
+ operator++(int) volatile
+ { return _M_b++; }
+
+ __pointer_type
+ operator--(int)
+ { return _M_b--; }
+
+ __pointer_type
+ operator--(int) volatile
+ { return _M_b--; }
+
+ __pointer_type
+ operator++()
+ { return ++_M_b; }
+
+ __pointer_type
+ operator++() volatile
+ { return ++_M_b; }
+
+ __pointer_type
+ operator--()
+ { return --_M_b; }
+
+ __pointer_type
+ operator--() volatile
+ { return --_M_b; }
+
+ __pointer_type
+ operator+=(ptrdiff_t __d)
+ { return _M_b.operator+=(__d); }
+
+ __pointer_type
+ operator+=(ptrdiff_t __d) volatile
+ { return _M_b.operator+=(__d); }
+
+ __pointer_type
+ operator-=(ptrdiff_t __d)
+ { return _M_b.operator-=(__d); }
+
+ __pointer_type
+ operator-=(ptrdiff_t __d) volatile
+ { return _M_b.operator-=(__d); }
bool
- compare_exchange_weak(_Tp*&, _Tp*, memory_order = memory_order_seq_cst);
+ is_lock_free() const
+ { return _M_b.is_lock_free(); }
bool
- compare_exchange_strong(_Tp*&, _Tp*, memory_order = memory_order_seq_cst);
+ is_lock_free() const volatile
+ { return _M_b.is_lock_free(); }
- _Tp*
- fetch_add(ptrdiff_t, memory_order = memory_order_seq_cst);
+ void
+ store(__pointer_type __p, memory_order __m = memory_order_seq_cst)
+ { return _M_b.store(__p, __m); }
- _Tp*
- fetch_sub(ptrdiff_t, memory_order = memory_order_seq_cst);
+ void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile
+ { return _M_b.store(__p, __m); }
- operator _Tp*() const
- { return load(); }
+ __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const
+ { return _M_b.load(__m); }
- _Tp*
- operator=(_Tp* __v)
- {
- store(__v);
- return __v;
- }
+ __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const volatile
+ { return _M_b.load(__m); }
- _Tp*
- operator++(int) { return fetch_add(1); }
+ __pointer_type
+ exchange(__pointer_type __p, memory_order __m = memory_order_seq_cst)
+ { return _M_b.exchange(__p, __m); }
- _Tp*
- operator--(int) { return fetch_sub(1); }
+ __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile
+ { return _M_b.exchange(__p, __m); }
- _Tp*
- operator++() { return fetch_add(1) + 1; }
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2)
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
- _Tp*
- operator--() { return fetch_sub(1) - 1; }
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2) volatile
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
- _Tp*
- operator+=(ptrdiff_t __d)
- { return fetch_add(__d) + __d; }
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst)
+ {
+ return compare_exchange_weak(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
- _Tp*
- operator-=(ptrdiff_t __d)
- { return fetch_sub(__d) - __d; }
- };
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) volatile
+ {
+ return compare_exchange_weak(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2)
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
- /// Explicit specialization for void*
- template<>
- struct atomic<void*> : public atomic_address
- {
- typedef void* __integral_type;
- typedef atomic_address __base_type;
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2) volatile
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
- atomic() = default;
- ~atomic() = default;
- atomic(const atomic&) = delete;
- atomic& operator=(const atomic&) volatile = delete;
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst)
+ {
+ return _M_b.compare_exchange_strong(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
- atomic(__integral_type __i) : __base_type(__i) { }
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) volatile
+ {
+ return _M_b.compare_exchange_strong(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
- using __base_type::operator __integral_type;
- using __base_type::operator=;
+ __pointer_type
+ fetch_add(ptrdiff_t __d, memory_order __m = memory_order_seq_cst)
+ { return _M_b.fetch_add(__d, __m); }
+
+ __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile
+ { return _M_b.fetch_add(__d, __m); }
+
+ __pointer_type
+ fetch_sub(ptrdiff_t __d, memory_order __m = memory_order_seq_cst)
+ { return _M_b.fetch_sub(__d, __m); }
+
+ __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile
+ { return _M_b.fetch_sub(__d, __m); }
};
+
/// Explicit specialization for bool.
template<>
struct atomic<bool> : public atomic_bool
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
atomic() = default;
~atomic() = default;
atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
atomic& operator=(const atomic&) volatile = delete;
- atomic(__integral_type __i) : __base_type(__i) { }
+ constexpr atomic(__integral_type __i) : __base_type(__i) { }
using __base_type::operator __integral_type;
using __base_type::operator=;
};
- template<typename _Tp>
- _Tp*
- atomic<_Tp*>::load(memory_order __m) const
- { return static_cast<_Tp*>(atomic_address::load(__m)); }
-
- template<typename _Tp>
- _Tp*
- atomic<_Tp*>::exchange(_Tp* __v, memory_order __m)
- { return static_cast<_Tp*>(atomic_address::exchange(__v, __m)); }
-
- template<typename _Tp>
- bool
- atomic<_Tp*>::compare_exchange_weak(_Tp*& __r, _Tp* __v, memory_order __m1,
- memory_order __m2)
- {
- void** __vr = reinterpret_cast<void**>(&__r);
- void* __vv = static_cast<void*>(__v);
- return atomic_address::compare_exchange_weak(*__vr, __vv, __m1, __m2);
- }
-
- template<typename _Tp>
- bool
- atomic<_Tp*>::compare_exchange_strong(_Tp*& __r, _Tp* __v,
- memory_order __m1,
- memory_order __m2)
- {
- void** __vr = reinterpret_cast<void**>(&__r);
- void* __vv = static_cast<void*>(__v);
- return atomic_address::compare_exchange_strong(*__vr, __vv, __m1, __m2);
- }
-
- template<typename _Tp>
- bool
- atomic<_Tp*>::compare_exchange_weak(_Tp*& __r, _Tp* __v,
- memory_order __m)
- {
- return compare_exchange_weak(__r, __v, __m,
- __calculate_memory_order(__m));
- }
-
- template<typename _Tp>
- bool
- atomic<_Tp*>::compare_exchange_strong(_Tp*& __r, _Tp* __v,
- memory_order __m)
- {
- return compare_exchange_strong(__r, __v, __m,
- __calculate_memory_order(__m));
- }
-
- template<typename _Tp>
- _Tp*
- atomic<_Tp*>::fetch_add(ptrdiff_t __d, memory_order __m)
- {
- void* __p = atomic_fetch_add_explicit(this, sizeof(_Tp) * __d, __m);
- return static_cast<_Tp*>(__p);
- }
-
- template<typename _Tp>
- _Tp*
- atomic<_Tp*>::fetch_sub(ptrdiff_t __d, memory_order __m)
- {
- void* __p = atomic_fetch_sub_explicit(this, sizeof(_Tp) * __d, __m);
- return static_cast<_Tp*>(__p);
- }
-
- // Convenience function definitions, atomic_flag.
+ // Function definitions, atomic_flag operations.
inline bool
atomic_flag_test_and_set_explicit(atomic_flag* __a, memory_order __m)
{ return __a->test_and_set(__m); }
- inline void
- atomic_flag_clear_explicit(atomic_flag* __a, memory_order __m)
- { return __a->clear(__m); }
-
-
- // Convenience function definitions, atomic_address.
inline bool
- atomic_is_lock_free(const atomic_address* __a)
- { return __a->is_lock_free(); }
+ atomic_flag_test_and_set_explicit(volatile atomic_flag* __a,
+ memory_order __m)
+ { return __a->test_and_set(__m); }
inline void
- atomic_store(atomic_address* __a, void* __v)
- { __a->store(__v); }
+ atomic_flag_clear_explicit(atomic_flag* __a, memory_order __m)
+ { __a->clear(__m); }
inline void
- atomic_store_explicit(atomic_address* __a, void* __v, memory_order __m)
- { __a->store(__v, __m); }
-
- inline void*
- atomic_load(const atomic_address* __a)
- { return __a->load(); }
-
- inline void*
- atomic_load_explicit(const atomic_address* __a, memory_order __m)
- { return __a->load(__m); }
-
- inline void*
- atomic_exchange(atomic_address* __a, void* __v)
- { return __a->exchange(__v); }
-
- inline void*
- atomic_exchange_explicit(atomic_address* __a, void* __v, memory_order __m)
- { return __a->exchange(__v, __m); }
-
- inline bool
- atomic_compare_exchange_weak(atomic_address* __a, void** __v1, void* __v2)
- {
- return __a->compare_exchange_weak(*__v1, __v2, memory_order_seq_cst,
- memory_order_seq_cst);
- }
-
- inline bool
- atomic_compare_exchange_strong(atomic_address* __a,
- void** __v1, void* __v2)
- {
- return __a->compare_exchange_strong(*__v1, __v2, memory_order_seq_cst,
- memory_order_seq_cst);
- }
+ atomic_flag_clear_explicit(volatile atomic_flag* __a, memory_order __m)
+ { __a->clear(__m); }
inline bool
- atomic_compare_exchange_weak_explicit(atomic_address* __a,
- void** __v1, void* __v2,
- memory_order __m1, memory_order __m2)
- { return __a->compare_exchange_weak(*__v1, __v2, __m1, __m2); }
+ atomic_flag_test_and_set(atomic_flag* __a)
+ { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }
inline bool
- atomic_compare_exchange_strong_explicit(atomic_address* __a,
- void** __v1, void* __v2,
- memory_order __m1, memory_order __m2)
- { return __a->compare_exchange_strong(*__v1, __v2, __m1, __m2); }
-
- inline void*
- atomic_fetch_add_explicit(atomic_address* __a, ptrdiff_t __d,
- memory_order __m)
- { return __a->fetch_add(__d, __m); }
-
- inline void*
- atomic_fetch_add(atomic_address* __a, ptrdiff_t __d)
- { return __a->fetch_add(__d); }
-
- inline void*
- atomic_fetch_sub_explicit(atomic_address* __a, ptrdiff_t __d,
- memory_order __m)
- { return __a->fetch_sub(__d, __m); }
-
- inline void*
- atomic_fetch_sub(atomic_address* __a, ptrdiff_t __d)
- { return __a->fetch_sub(__d); }
-
-
- // Convenience function definitions, atomic_bool.
- inline bool
- atomic_is_lock_free(const atomic_bool* __a)
- { return __a->is_lock_free(); }
+ atomic_flag_test_and_set(volatile atomic_flag* __a)
+ { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }
inline void
- atomic_store(atomic_bool* __a, bool __i)
- { __a->store(__i); }
+ atomic_flag_clear(atomic_flag* __a)
+ { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }
inline void
- atomic_store_explicit(atomic_bool* __a, bool __i, memory_order __m)
- { __a->store(__i, __m); }
-
- inline bool
- atomic_load(const atomic_bool* __a)
- { return __a->load(); }
-
- inline bool
- atomic_load_explicit(const atomic_bool* __a, memory_order __m)
- { return __a->load(__m); }
-
- inline bool
- atomic_exchange(atomic_bool* __a, bool __i)
- { return __a->exchange(__i); }
-
- inline bool
- atomic_exchange_explicit(atomic_bool* __a, bool __i, memory_order __m)
- { return __a->exchange(__i, __m); }
+ atomic_flag_clear(volatile atomic_flag* __a)
+ { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }
- inline bool
- atomic_compare_exchange_weak(atomic_bool* __a, bool* __i1, bool __i2)
- {
- return __a->compare_exchange_weak(*__i1, __i2, memory_order_seq_cst,
- memory_order_seq_cst);
- }
- inline bool
- atomic_compare_exchange_strong(atomic_bool* __a, bool* __i1, bool __i2)
- {
- return __a->compare_exchange_strong(*__i1, __i2, memory_order_seq_cst,
- memory_order_seq_cst);
- }
+ // Function templates generally applicable to atomic types.
+ template<typename _ITp>
+ inline bool
+ atomic_is_lock_free(const atomic<_ITp>* __a)
+ { return __a->is_lock_free(); }
- inline bool
- atomic_compare_exchange_weak_explicit(atomic_bool* __a, bool* __i1,
- bool __i2, memory_order __m1,
- memory_order __m2)
- { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
+ template<typename _ITp>
+ inline bool
+ atomic_is_lock_free(const volatile atomic<_ITp>* __a)
+ { return __a->is_lock_free(); }
- inline bool
- atomic_compare_exchange_strong_explicit(atomic_bool* __a,
- bool* __i1, bool __i2,
- memory_order __m1, memory_order __m2)
- { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }
+ template<typename _ITp>
+ inline void
+ atomic_init(atomic<_ITp>* __a, _ITp __i);
+ template<typename _ITp>
+ inline void
+ atomic_init(volatile atomic<_ITp>* __a, _ITp __i);
+ template<typename _ITp>
+ inline void
+ atomic_store_explicit(atomic<_ITp>* __a, _ITp __i, memory_order __m)
+ { __a->store(__i, __m); }
- // Free standing functions. Template argument should be constricted
- // to intergral types as specified in the standard.
template<typename _ITp>
inline void
- atomic_store_explicit(__atomic_base<_ITp>* __a, _ITp __i, memory_order __m)
+ atomic_store_explicit(volatile atomic<_ITp>* __a, _ITp __i,
+ memory_order __m)
{ __a->store(__i, __m); }
template<typename _ITp>
inline _ITp
- atomic_load_explicit(const __atomic_base<_ITp>* __a, memory_order __m)
+ atomic_load_explicit(const atomic<_ITp>* __a, memory_order __m)
+ { return __a->load(__m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_load_explicit(const volatile atomic<_ITp>* __a,
+ memory_order __m)
{ return __a->load(__m); }
template<typename _ITp>
inline _ITp
- atomic_exchange_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ atomic_exchange_explicit(atomic<_ITp>* __a, _ITp __i,
memory_order __m)
{ return __a->exchange(__i, __m); }
template<typename _ITp>
+ inline _ITp
+ atomic_exchange_explicit(volatile atomic<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->exchange(__i, __m); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_weak_explicit(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1, memory_order __m2)
+ { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
inline bool
- atomic_compare_exchange_weak_explicit(__atomic_base<_ITp>* __a,
+ atomic_compare_exchange_weak_explicit(volatile atomic<_ITp>* __a,
_ITp* __i1, _ITp __i2,
memory_order __m1, memory_order __m2)
{ return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
template<typename _ITp>
inline bool
- atomic_compare_exchange_strong_explicit(__atomic_base<_ITp>* __a,
+ atomic_compare_exchange_strong_explicit(atomic<_ITp>* __a,
_ITp* __i1, _ITp __i2,
memory_order __m1,
memory_order __m2)
{ return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }
template<typename _ITp>
- inline _ITp
- atomic_fetch_add_explicit(__atomic_base<_ITp>* __a, _ITp __i,
- memory_order __m)
- { return __a->fetch_add(__i, __m); }
+ inline bool
+ atomic_compare_exchange_strong_explicit(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+ memory_order __m2)
+ { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }
- template<typename _ITp>
- inline _ITp
- atomic_fetch_sub_explicit(__atomic_base<_ITp>* __a, _ITp __i,
- memory_order __m)
- { return __a->fetch_sub(__i, __m); }
template<typename _ITp>
- inline _ITp
- atomic_fetch_and_explicit(__atomic_base<_ITp>* __a, _ITp __i,
- memory_order __m)
- { return __a->fetch_and(__i, __m); }
+ inline void
+ atomic_store(atomic<_ITp>* __a, _ITp __i)
+ { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
- inline _ITp
- atomic_fetch_or_explicit(__atomic_base<_ITp>* __a, _ITp __i,
- memory_order __m)
- { return __a->fetch_or(__i, __m); }
+ inline void
+ atomic_store(volatile atomic<_ITp>* __a, _ITp __i)
+ { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
- atomic_fetch_xor_explicit(__atomic_base<_ITp>* __a, _ITp __i,
- memory_order __m)
- { return __a->fetch_xor(__i, __m); }
-
- template<typename _ITp>
- inline bool
- atomic_is_lock_free(const __atomic_base<_ITp>* __a)
- { return __a->is_lock_free(); }
+ atomic_load(const atomic<_ITp>* __a)
+ { return atomic_load_explicit(__a, memory_order_seq_cst); }
template<typename _ITp>
- inline void
- atomic_store(__atomic_base<_ITp>* __a, _ITp __i)
- { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
+ inline _ITp
+ atomic_load(const volatile atomic<_ITp>* __a)
+ { return atomic_load_explicit(__a, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
- atomic_load(const __atomic_base<_ITp>* __a)
- { return atomic_load_explicit(__a, memory_order_seq_cst); }
+ atomic_exchange(atomic<_ITp>* __a, _ITp __i)
+ { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
- atomic_exchange(__atomic_base<_ITp>* __a, _ITp __i)
+ atomic_exchange(volatile atomic<_ITp>* __a, _ITp __i)
{ return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline bool
- atomic_compare_exchange_weak(__atomic_base<_ITp>* __a,
+ atomic_compare_exchange_weak(atomic<_ITp>* __a,
_ITp* __i1, _ITp __i2)
{
return atomic_compare_exchange_weak_explicit(__a, __i1, __i2,
template<typename _ITp>
inline bool
- atomic_compare_exchange_strong(__atomic_base<_ITp>* __a,
+ atomic_compare_exchange_weak(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2)
+ {
+ return atomic_compare_exchange_weak_explicit(__a, __i1, __i2,
+ memory_order_seq_cst,
+ memory_order_seq_cst);
+ }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_strong(atomic<_ITp>* __a,
_ITp* __i1, _ITp __i2)
{
return atomic_compare_exchange_strong_explicit(__a, __i1, __i2,
}
template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_strong(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2)
+ {
+ return atomic_compare_exchange_strong_explicit(__a, __i1, __i2,
+ memory_order_seq_cst,
+ memory_order_seq_cst);
+ }
+
+ // Function templates for atomic_integral operations only, using
+ // __atomic_base. Template argument should be constricted to
+ // intergral types as specified in the standard, excluding address
+ // types.
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_add_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_add(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_add_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_add(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_sub_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_sub(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_sub_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_sub(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_and_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_and(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_and_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_and(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_or_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_or(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_or_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_or(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_xor(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m)
+ { return __a->fetch_xor(__i, __m); }
+
+ template<typename _ITp>
inline _ITp
atomic_fetch_add(__atomic_base<_ITp>* __a, _ITp __i)
{ return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
+ atomic_fetch_add(volatile __atomic_base<_ITp>* __a, _ITp __i)
+ { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
atomic_fetch_sub(__atomic_base<_ITp>* __a, _ITp __i)
{ return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
+ atomic_fetch_sub(volatile __atomic_base<_ITp>* __a, _ITp __i)
+ { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
atomic_fetch_and(__atomic_base<_ITp>* __a, _ITp __i)
{ return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
+ atomic_fetch_and(volatile __atomic_base<_ITp>* __a, _ITp __i)
+ { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
atomic_fetch_or(__atomic_base<_ITp>* __a, _ITp __i)
{ return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }
template<typename _ITp>
inline _ITp
+ atomic_fetch_or(volatile __atomic_base<_ITp>* __a, _ITp __i)
+ { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
atomic_fetch_xor(__atomic_base<_ITp>* __a, _ITp __i)
{ return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor(volatile __atomic_base<_ITp>* __a, _ITp __i)
+ { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
+
+
+ // Partial specializations for pointers.
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add_explicit(atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m)
+ { return __a->fetch_add(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add_explicit(volatile atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m)
+ { return __a->fetch_add(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add(volatile atomic<_ITp*>* __a, ptrdiff_t __d)
+ { return __a->fetch_add(__d); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add(atomic<_ITp*>* __a, ptrdiff_t __d)
+ { return __a->fetch_add(__d); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub_explicit(volatile atomic<_ITp*>* __a,
+ ptrdiff_t __d, memory_order __m)
+ { return __a->fetch_sub(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub_explicit(atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m)
+ { return __a->fetch_sub(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub(volatile atomic<_ITp*>* __a, ptrdiff_t __d)
+ { return __a->fetch_sub(__d); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub(atomic<_ITp*>* __a, ptrdiff_t __d)
+ { return __a->fetch_sub(__d); }
// @} group atomics
-_GLIBCXX_END_NAMESPACE
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
#endif
OSDN Git Service
