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libostd/octa/atomic.h

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/* Atomics for OctaSTD. Supports GCC/Clang and possibly MSVC.
*
* This file is part of OctaSTD. See COPYING.md for futher information.
*/
#ifndef OCTA_ATOMIC_H
#define OCTA_ATOMIC_H
#include <stdint.h>
#include <stddef.h>
#include "octa/types.h"
#include "octa/type_traits.h"
namespace octa {
enum class MemoryOrder {
relaxed = 0,
consume,
acquire,
release,
acq_rel,
seq_cst
};
namespace detail {
template<typename _T>
struct AtomicBase {
AtomicBase() {}
explicit AtomicBase(_T v): p_value(v) {}
_T p_value;
};
template<typename _T> _T atomic_create();
template<typename _T, typename _U>
EnableIf<sizeof(_T()->value = atomic_create<_U>()), char>
test_atomic_assignable(int);
template<typename _T, typename _U>
int test_atomic_assignable(...);
template<typename _T, typename _U>
struct CanAtomicAssign {
static constexpr bool value
= (sizeof(test_atomic_assignable<_T, _U>(1)) == sizeof(char));
};
template<typename _T>
static inline EnableIf<
CanAtomicAssign<volatile AtomicBase<_T> *, _T>::value
> atomic_init(volatile AtomicBase<_T> *a, _T v) {
a->p_value = v;
}
template<typename _T>
static inline EnableIf<
!CanAtomicAssign<volatile AtomicBase<_T> *, _T>::value &&
CanAtomicAssign< AtomicBase<_T> *, _T>::value
> atomic_init(volatile AtomicBase<_T> *a, _T v) {
volatile char *to = (volatile char *)(&a->p_value);
volatile char *end = to + sizeof(_T);
char *from = (char *)(&v);
while (to != end) *to++ =*from++;
}
template<typename _T>
static inline void atomic_init(AtomicBase<_T> *a, _T v) {
a->p_value = v;
}
}
/* GCC, Clang support
*
* libc++ used for reference
*/
#ifdef __GNUC__
#define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
#define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
#define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
#define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
#define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
#define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
#define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
#define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
#define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
#define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
namespace detail {
static inline constexpr int to_gcc_order(MemoryOrder ord) {
return ((ord == MemoryOrder::relaxed) ? __ATOMIC_RELAXED :
((ord == MemoryOrder::acquire) ? __ATOMIC_ACQUIRE :
((ord == MemoryOrder::release) ? __ATOMIC_RELEASE :
((ord == MemoryOrder::seq_cst) ? __ATOMIC_SEQ_CST :
((ord == MemoryOrder::acq_rel) ? __ATOMIC_ACQ_REL :
__ATOMIC_CONSUME)))));
}
static inline constexpr int to_gcc_failure_order(MemoryOrder ord) {
return ((ord == MemoryOrder::relaxed) ? __ATOMIC_RELAXED :
((ord == MemoryOrder::acquire) ? __ATOMIC_ACQUIRE :
((ord == MemoryOrder::release) ? __ATOMIC_RELAXED :
((ord == MemoryOrder::seq_cst) ? __ATOMIC_SEQ_CST :
((ord == MemoryOrder::acq_rel) ? __ATOMIC_ACQUIRE :
__ATOMIC_CONSUME)))));
}
static inline void atomic_thread_fence(MemoryOrder ord) {
__atomic_thread_fence(to_gcc_order(ord));
}
static inline void atomic_signal_fence(MemoryOrder ord) {
__atomic_signal_fence(to_gcc_order(ord));
}
static inline bool atomic_is_lock_free(size_t size) {
/* return __atomic_is_lock_free(size, 0); cannot be used on some platforms */
return size <= sizeof(void *);
}
template<typename _T>
static inline void atomic_store(volatile AtomicBase<_T> *a,
_T v, MemoryOrder ord) {
__atomic_store(&a->p_value, &v, to_gcc_order(ord));
}
template<typename _T>
static inline void atomic_store(AtomicBase<_T> *a,
_T v, MemoryOrder ord) {
__atomic_store(&a->p_value, &v, to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_load(volatile AtomicBase<_T> *a,
MemoryOrder ord) {
_T r;
__atomic_load(&a->p_value, &r, to_gcc_order(ord));
return r;
}
template<typename _T>
static inline _T atomic_load(AtomicBase<_T> *a,
MemoryOrder ord) {
_T r;
__atomic_load(&a->p_value, &r, to_gcc_order(ord));
return r;
}
template<typename _T>
static inline _T atomic_exchange(volatile AtomicBase<_T> *a,
_T v, MemoryOrder ord) {
_T r;
__atomic_exchange(&a->p_value, &v, &r, to_gcc_order(ord));
return r;
}
template<typename _T>
static inline _T atomic_exchange(AtomicBase<_T> *a,
_T v, MemoryOrder ord) {
_T r;
__atomic_exchange(&a->p_value, &v, &r, to_gcc_order(ord));
return r;
}
template<typename _T>
static inline bool atomic_compare_exchange_strong(
volatile AtomicBase<_T> *a, _T *expected, _T v,
MemoryOrder success, MemoryOrder failure
) {
return __atomic_compare_exchange(&a->p_value, expected, &v, false,
to_gcc_order(success), to_gcc_failure_order(failure));
}
template<typename _T>
static inline bool atomic_compare_exchange_strong(
AtomicBase<_T> *a, _T *expected, _T v,
MemoryOrder success, MemoryOrder failure
) {
return __atomic_compare_exchange(&a->p_value, expected, &v, false,
to_gcc_order(success), to_gcc_failure_order(failure));
}
template<typename _T>
static inline bool atomic_compare_exchange_weak(
volatile AtomicBase<_T> *a, _T *expected, _T v,
MemoryOrder success, MemoryOrder failure
) {
return __atomic_compare_exchange(&a->p_value, expected, &v, true,
to_gcc_order(success), to_gcc_failure_order(failure));
}
template<typename _T>
static inline bool atomic_compare_exchange_weak(
AtomicBase<_T> *a, _T *expected, _T v,
MemoryOrder success, MemoryOrder failure
) {
return __atomic_compare_exchange(&a->p_value, expected, &v, true,
to_gcc_order(success), to_gcc_failure_order(failure));
}
template<typename _T>
struct SkipAmt { static constexpr size_t value = 1; };
template<typename _T>
struct SkipAmt<_T *> { static constexpr size_t value = sizeof(_T); };
template<typename _T> struct SkipAmt<_T[]> {};
template<typename _T, size_t _N> struct SkipAmt<_T[_N]> {};
template<typename _T, typename _U>
static inline _T atomic_fetch_add(volatile AtomicBase<_T> *a,
_U d, MemoryOrder ord) {
return __atomic_fetch_add(&a->p_value, d * SkipAmt<_T>::value,
to_gcc_order(ord));
}
template<typename _T, typename _U>
static inline _T atomic_fetch_add(AtomicBase<_T> *a,
_U d, MemoryOrder ord) {
return __atomic_fetch_add(&a->p_value, d * SkipAmt<_T>::value,
to_gcc_order(ord));
}
template<typename _T, typename _U>
static inline _T atomic_fetch_sub(volatile AtomicBase<_T> *a,
_U d, MemoryOrder ord) {
return __atomic_fetch_sub(&a->p_value, d * SkipAmt<_T>::value,
to_gcc_order(ord));
}
template<typename _T, typename _U>
static inline _T atomic_fetch_sub(AtomicBase<_T> *a,
_U d, MemoryOrder ord) {
return __atomic_fetch_sub(&a->p_value, d * SkipAmt<_T>::value,
to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_fetch_and(volatile AtomicBase<_T> *a,
_T pattern, MemoryOrder ord) {
return __atomic_fetch_and(&a->p_value, pattern,
to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_fetch_and(AtomicBase<_T> *a,
_T pattern, MemoryOrder ord) {
return __atomic_fetch_and(&a->p_value, pattern,
to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_fetch_or(volatile AtomicBase<_T> *a,
_T pattern, MemoryOrder ord) {
return __atomic_fetch_or(&a->p_value, pattern,
to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_fetch_or(AtomicBase<_T> *a,
_T pattern, MemoryOrder ord) {
return __atomic_fetch_or(&a->p_value, pattern,
to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_fetch_xor(volatile AtomicBase<_T> *a,
_T pattern, MemoryOrder ord) {
return __atomic_fetch_xor(&a->p_value, pattern,
to_gcc_order(ord));
}
template<typename _T>
static inline _T atomic_fetch_xor(AtomicBase<_T> *a,
_T pattern, MemoryOrder ord) {
return __atomic_fetch_xor(&a->p_value, pattern,
to_gcc_order(ord));
}
} /* namespace detail */
#else
# error Unsupported compiler
#endif
template <typename _T> inline _T kill_dependency(_T v) {
return v;
}
namespace detail {
template<typename _T, bool = octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value>
struct Atomic {
mutable AtomicBase<_T> p_a;
Atomic() = default;
constexpr Atomic(_T v): p_a(v) {}
Atomic(const Atomic &) = delete;
Atomic &operator=(const Atomic &) = delete;
Atomic &operator=(const Atomic &) volatile = delete;
bool is_lock_free() const volatile {
return atomic_is_lock_free(sizeof(_T));
}
bool is_lock_free() const {
return atomic_is_lock_free(sizeof(_T));
}
void store(_T v, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
atomic_store(&p_a, v, ord);
}
void store(_T v, MemoryOrder ord = MemoryOrder::seq_cst) {
atomic_store(&p_a, v, ord);
}
_T load(MemoryOrder ord = MemoryOrder::seq_cst) const volatile {
return atomic_load(&p_a, ord);
}
_T load(MemoryOrder ord = MemoryOrder::seq_cst) const {
return atomic_load(&p_a, ord);
}
operator _T() const volatile { return load(); }
operator _T() const { return load(); }
_T exchange(_T v, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return atomic_exchange(&p_a, v, ord);
}
_T exchange(_T v, MemoryOrder ord = MemoryOrder::seq_cst) {
return atomic_exchange(&p_a, v, ord);
}
bool compare_exchange_weak(_T &e, _T v, MemoryOrder s,
MemoryOrder f) volatile {
return atomic_compare_exchange_weak(&p_a, &e, v, s, f);
}
bool compare_exchange_weak(_T &e, _T v, MemoryOrder s,
MemoryOrder f) {
return atomic_compare_exchange_weak(&p_a, &e, v, s, f);
}
bool compare_exchange_strong(_T &e, _T v, MemoryOrder s,
MemoryOrder f) volatile {
return atomic_compare_exchange_strong(&p_a, &e, v, s, f);
}
bool compare_exchange_strong(_T &e, _T v, MemoryOrder s,
MemoryOrder f) {
return atomic_compare_exchange_strong(&p_a, &e, v, s, f);
}
bool compare_exchange_weak(_T &e, _T v, MemoryOrder ord
= MemoryOrder::seq_cst)
volatile {
return atomic_compare_exchange_weak(&p_a, &e, v, ord, ord);
}
bool compare_exchange_weak(_T &e, _T v, MemoryOrder ord
= MemoryOrder::seq_cst) {
return atomic_compare_exchange_weak(&p_a, &e, v, ord, ord);
}
bool compare_exchange_strong(_T &e, _T v, MemoryOrder ord
= MemoryOrder::seq_cst)
volatile {
return atomic_compare_exchange_strong(&p_a, &e, v, ord, ord);
}
bool compare_exchange_strong(_T &e, _T v, MemoryOrder ord
= MemoryOrder::seq_cst) {
return atomic_compare_exchange_strong(&p_a, &e, v, ord, ord);
}
};
template<typename _T>
struct Atomic<_T, true>: Atomic<_T, false> {
typedef Atomic<_T, false> _base_t;
Atomic() = default;
constexpr Atomic(_T v): _base_t(v) {}
_T fetch_add(_T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return atomic_fetch_add(&this->p_a, op, ord);
}
_T fetch_add(_T op, MemoryOrder ord = MemoryOrder::seq_cst) {
return atomic_fetch_add(&this->p_a, op, ord);
}
_T fetch_sub(_T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return atomic_fetch_sub(&this->p_a, op, ord);
}
_T fetch_sub(_T op, MemoryOrder ord = MemoryOrder::seq_cst) {
return atomic_fetch_sub(&this->p_a, op, ord);
}
_T fetch_and(_T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return atomic_fetch_and(&this->p_a, op, ord);
}
_T fetch_and(_T op, MemoryOrder ord = MemoryOrder::seq_cst) {
return atomic_fetch_and(&this->p_a, op, ord);
}
_T fetch_or(_T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return atomic_fetch_or(&this->p_a, op, ord);
}
_T fetch_or(_T op, MemoryOrder ord = MemoryOrder::seq_cst) {
return atomic_fetch_or(&this->p_a, op, ord);
}
_T fetch_xor(_T op, MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return atomic_fetch_xor(&this->p_a, op, ord);
}
_T fetch_xor(_T op, MemoryOrder ord = MemoryOrder::seq_cst) {
return atomic_fetch_xor(&this->p_a, op, ord);
}
_T operator++(int) volatile { return fetch_add(_T(1)); }
_T operator++(int) { return fetch_add(_T(1)); }
_T operator--(int) volatile { return fetch_sub(_T(1)); }
_T operator--(int) { return fetch_sub(_T(1)); }
_T operator++( ) volatile { return fetch_add(_T(1)) + _T(1); }
_T operator++( ) { return fetch_add(_T(1)) + _T(1); }
_T operator--( ) volatile { return fetch_sub(_T(1)) - _T(1); }
_T operator--( ) { return fetch_sub(_T(1)) - _T(1); }
_T operator+=(_T op) volatile { return fetch_add(op) + op; }
_T operator+=(_T op) { return fetch_add(op) + op; }
_T operator-=(_T op) volatile { return fetch_sub(op) - op; }
_T operator-=(_T op) { return fetch_sub(op) - op; }
_T operator&=(_T op) volatile { return fetch_and(op) & op; }
_T operator&=(_T op) { return fetch_and(op) & op; }
_T operator|=(_T op) volatile { return fetch_or (op) | op; }
_T operator|=(_T op) { return fetch_or (op) | op; }
_T operator^=(_T op) volatile { return fetch_xor(op) ^ op; }
_T operator^=(_T op) { return fetch_xor(op) ^ op; }
};
}
template<typename _T>
struct Atomic: octa::detail::Atomic<_T> {
typedef octa::detail::Atomic<_T> _base_t;
Atomic() = default;
constexpr Atomic(_T v): _base_t(v) {}
_T operator=(_T v) volatile {
_base_t::store(v); return v;
}
_T operator=(_T v) {
_base_t::store(v); return v;
}
};
template<typename _T>
struct Atomic<_T *>: octa::detail::Atomic<_T *> {
typedef octa::detail::Atomic<_T *> _base_t;
Atomic() = default;
constexpr Atomic(_T *v): _base_t(v) {}
_T *operator=(_T *v) volatile {
_base_t::store(v); return v;
}
_T *operator=(_T *v) {
_base_t::store(v); return v;
}
_T *fetch_add(ptrdiff_t op, MemoryOrder ord = MemoryOrder::seq_cst)
volatile {
return octa::detail::atomic_fetch_add(&this->p_a, op, ord);
}
_T *fetch_add(ptrdiff_t op, MemoryOrder ord = MemoryOrder::seq_cst) {
return octa::detail::atomic_fetch_add(&this->p_a, op, ord);
}
_T *fetch_sub(ptrdiff_t op, MemoryOrder ord = MemoryOrder::seq_cst)
volatile {
return octa::detail::atomic_fetch_sub(&this->p_a, op, ord);
}
_T *fetch_sub(ptrdiff_t op, MemoryOrder ord = MemoryOrder::seq_cst) {
return octa::detail::atomic_fetch_sub(&this->p_a, op, ord);
}
_T *operator++(int) volatile { return fetch_add(1); }
_T *operator++(int) { return fetch_add(1); }
_T *operator--(int) volatile { return fetch_sub(1); }
_T *operator--(int) { return fetch_sub(1); }
_T *operator++( ) volatile { return fetch_add(1) + 1; }
_T *operator++( ) { return fetch_add(1) + 1; }
_T *operator--( ) volatile { return fetch_sub(1) - 1; }
_T *operator--( ) { return fetch_sub(1) - 1; }
_T *operator+=(ptrdiff_t op) volatile { return fetch_add(op) + op; }
_T *operator+=(ptrdiff_t op) { return fetch_add(op) + op; }
_T *operator-=(ptrdiff_t op) volatile { return fetch_sub(op) - op; }
_T *operator-=(ptrdiff_t op) { return fetch_sub(op) - op; }
};
template<typename _T>
inline bool atomic_is_lock_free(const volatile Atomic<_T> *a) {
return a->is_lock_free();
}
template<typename _T>
inline bool atomic_is_lock_free(const Atomic<_T> *a) {
return a->is_lock_free();
}
template<typename _T>
inline void atomic_init(volatile Atomic<_T> *a, _T v) {
octa::detail::atomic_init(&a->p_a, v);
}
template<typename _T>
inline void atomic_init(Atomic<_T> *a, _T v) {
octa::detail::atomic_init(&a->p_a, v);
}
template <typename _T>
inline void atomic_store(volatile Atomic<_T> *a, _T v) {
a->store(v);
}
template <typename _T>
inline void atomic_store(Atomic<_T> *a, _T v) {
a->store(v);
}
template <typename _T>
inline void atomic_store_explicit(volatile Atomic<_T> *a, _T v,
MemoryOrder ord) {
a->store(v, ord);
}
template <typename _T>
inline void atomic_store_explicit(Atomic<_T> *a, _T v,
MemoryOrder ord) {
a->store(v, ord);
}
template <typename _T>
inline _T atomic_load(const volatile Atomic<_T> *a) {
return a->load();
}
template <typename _T>
inline _T atomic_load(const Atomic<_T> *a) {
return a->load();
}
template <typename _T>
inline _T atomic_load_explicit(const volatile Atomic<_T> *a,
MemoryOrder ord) {
return a->load(ord);
}
template <typename _T>
inline _T atomic_load_explicit(const Atomic<_T> *a, MemoryOrder ord) {
return a->load(ord);
}
template <typename _T>
inline _T atomic_exchange(volatile Atomic<_T> *a, _T v) {
return a->exchange(v);
}
template <typename _T>
inline _T atomic_exchange(Atomic<_T> *a, _T v) {
return a->exchange(v);
}
template <typename _T>
inline _T atomic_exchange_explicit(volatile Atomic<_T> *a, _T v,
MemoryOrder ord) {
return a->exchange(v, ord);
}
template <typename _T>
inline _T atomic_exchange_explicit(Atomic<_T> *a, _T v,
MemoryOrder ord) {
return a->exchange(v, ord);
}
template <typename _T>
inline bool atomic_compare_exchange_weak(volatile Atomic<_T> *a,
_T *e, _T v) {
return a->compare_exchange_weak(*e, v);
}
template <typename _T>
inline bool atomic_compare_exchange_weak(Atomic<_T> *a, _T *e, _T v) {
return a->compare_exchange_weak(*e, v);
}
template <typename _T>
inline bool atomic_compare_exchange_strong(volatile Atomic<_T> *a,
_T *e, _T v) {
return a->compare_exchange_strong(*e, v);
}
template <typename _T>
inline bool atomic_compare_exchange_strong(Atomic<_T> *a, _T *e, _T v) {
return a->compare_exchange_strong(*e, v);
}
template <typename _T>
inline bool atomic_compare_exchange_weak_explicit(volatile Atomic<_T> *a,
_T *e, _T v,
MemoryOrder s,
MemoryOrder f) {
return a->compare_exchange_weak(*e, v, s, f);
}
template <typename _T>
inline bool atomic_compare_exchange_weak_explicit(Atomic<_T> *a, _T *e,
_T v,
MemoryOrder s,
MemoryOrder f) {
return a->compare_exchange_weak(*e, v, s, f);
}
template <typename _T>
inline bool atomic_compare_exchange_strong_explicit(volatile Atomic<_T> *a,
_T *e, _T v,
MemoryOrder s,
MemoryOrder f) {
return a->compare_exchange_strong(*e, v, s, f);
}
template <typename _T>
inline bool atomic_compare_exchange_strong_explicit(Atomic<_T> *a, _T *e,
_T v,
MemoryOrder s,
MemoryOrder f) {
return a->compare_exchange_strong(*e, v, s, f);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_add(volatile Atomic<_T> *a, _T op) {
return a->fetch_add(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_add(Atomic<_T> *a, _T op) {
return a->fetch_add(op);
}
template <typename _T>
inline _T *atomic_fetch_add(volatile Atomic<_T *> *a, ptrdiff_t op) {
return a->fetch_add(op);
}
template <typename _T>
inline _T *atomic_fetch_add(Atomic<_T *> *a, ptrdiff_t op) {
return a->fetch_add(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_add_explicit(volatile Atomic<_T> *a, _T op,
MemoryOrder ord) {
return a->fetch_add(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_add_explicit(Atomic<_T> *a, _T op, MemoryOrder ord) {
return a->fetch_add(op, ord);
}
template <typename _T>
inline _T *atomic_fetch_add_explicit(volatile Atomic<_T *> *a,
ptrdiff_t op, MemoryOrder ord) {
return a->fetch_add(op, ord);
}
template <typename _T>
inline _T *atomic_fetch_add_explicit(Atomic<_T *> *a, ptrdiff_t op,
MemoryOrder ord) {
return a->fetch_add(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_sub(volatile Atomic<_T> *a, _T op) {
return a->fetch_sub(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_sub(Atomic<_T> *a, _T op) {
return a->fetch_sub(op);
}
template <typename _T>
inline _T *atomic_fetch_sub(volatile Atomic<_T *> *a, ptrdiff_t op) {
return a->fetch_sub(op);
}
template <typename _T>
inline _T *atomic_fetch_sub(Atomic<_T *> *a, ptrdiff_t op) {
return a->fetch_sub(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_sub_explicit(volatile Atomic<_T> *a, _T op,
MemoryOrder ord) {
return a->fetch_sub(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_sub_explicit(Atomic<_T> *a, _T op, MemoryOrder ord) {
return a->fetch_sub(op, ord);
}
template <typename _T>
inline _T *atomic_fetch_sub_explicit(volatile Atomic<_T *> *a,
ptrdiff_t op, MemoryOrder ord) {
return a->fetch_sub(op, ord);
}
template <typename _T>
inline _T *atomic_fetch_sub_explicit(Atomic<_T *> *a, ptrdiff_t op,
MemoryOrder ord) {
return a->fetch_sub(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_and(volatile Atomic<_T> *a, _T op) {
return a->fetch_and(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_and(Atomic<_T> *a, _T op) {
return a->fetch_and(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_and_explicit(volatile Atomic<_T> *a, _T op,
MemoryOrder ord) {
return a->fetch_and(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_and_explicit(Atomic<_T> *a, _T op, MemoryOrder ord) {
return a->fetch_and(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_or(volatile Atomic<_T> *a, _T op) {
return a->fetch_or(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_or(Atomic<_T> *a, _T op) {
return a->fetch_or(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_or_explicit(volatile Atomic<_T> *a, _T op,
MemoryOrder ord) {
return a->fetch_or(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_or_explicit(Atomic<_T> *a, _T op, MemoryOrder ord) {
return a->fetch_or(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_xor(volatile Atomic<_T> *a, _T op) {
return a->fetch_xor(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_xor(Atomic<_T> *a, _T op) {
return a->fetch_xor(op);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_xor_explicit(volatile Atomic<_T> *a, _T op,
MemoryOrder ord) {
return a->fetch_xor(op, ord);
}
template <typename _T>
inline octa::EnableIf<octa::IsIntegral<_T>::value &&
!octa::IsSame<_T, bool>::value, _T>
atomic_fetch_xor_explicit(Atomic<_T> *a, _T op, MemoryOrder ord) {
return a->fetch_xor(op, ord);
}
struct AtomicFlag {
octa::detail::AtomicBase<bool> p_a;
AtomicFlag() = default;
AtomicFlag(bool b): p_a(b) {}
AtomicFlag(const AtomicFlag &) = delete;
AtomicFlag &operator=(const AtomicFlag &) = delete;
AtomicFlag &operator=(const AtomicFlag &) volatile = delete;
bool test_and_set(MemoryOrder ord = MemoryOrder::seq_cst) volatile {
return octa::detail::atomic_exchange(&p_a, true, ord);
}
bool test_and_set(MemoryOrder ord = MemoryOrder::seq_cst) {
return octa::detail::atomic_exchange(&p_a, true, ord);
}
void clear(MemoryOrder ord = MemoryOrder::seq_cst) volatile {
octa::detail::atomic_store(&p_a, false, ord);
}
void clear(MemoryOrder ord = MemoryOrder::seq_cst) {
octa::detail::atomic_store(&p_a, false, ord);
}
};
inline bool atomic_flag_test_and_set(volatile AtomicFlag *a) {
return a->test_and_set();
}
inline bool atomic_flag_test_and_set(AtomicFlag *a) {
return a->test_and_set();
}
inline bool atomic_flag_test_and_set_explicit(volatile AtomicFlag *a,
MemoryOrder ord) {
return a->test_and_set(ord);
}
inline bool atomic_flag_test_and_set_explicit(AtomicFlag *a,
MemoryOrder ord) {
return a->test_and_set(ord);
}
inline void atomic_flag_clear(volatile AtomicFlag *a) {
a->clear();
}
inline void atomic_flag_clear(AtomicFlag *a) {
a->clear();
}
inline void atomic_flag_clear_explicit(volatile AtomicFlag *a,
MemoryOrder ord) {
a->clear(ord);
}
inline void atomic_flag_clear_explicit(AtomicFlag *a, MemoryOrder ord) {
a->clear(ord);
}
inline void atomic_thread_fence(MemoryOrder ord) {
octa::detail::atomic_thread_fence(ord);
}
inline void atomic_signal_fence(MemoryOrder ord) {
octa::detail::atomic_signal_fence(ord);
}
typedef Atomic<bool > AtomicBool;
typedef Atomic<char > AtomicChar;
typedef Atomic<schar > AtomicSchar;
typedef Atomic<uchar > AtomicUchar;
typedef Atomic<short > AtomicShort;
typedef Atomic<ushort> AtomicUshort;
typedef Atomic<int > AtomicInt;
typedef Atomic<uint > AtomicUint;
typedef Atomic<long > AtomicLong;
typedef Atomic<ulong > AtomicUlong;
typedef Atomic<llong > AtomicLlong;
typedef Atomic<ullong> AtomicUllong;
typedef Atomic<char16_t> AtomicChar16;
typedef Atomic<char32_t> AtomicChar32;
typedef Atomic< wchar_t> AtomicWchar;
typedef Atomic< intptr_t> AtomicIntptr;
typedef Atomic<uintptr_t> AtomicUintptr;
typedef Atomic< size_t> AtomicSize;
typedef Atomic<ptrdiff_t> AtomicPtrdiff;
#define ATOMIC_FLAG_INIT {false}
#define ATOMIC_VAR_INIT(v) {v}
}
#endif
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