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#pragma once
#include "deimos/core/base.h"
namespace deimos
{
enum class MemoryOrder : int // NOLINT(*-enum-size)
{
kRelaxed = __ATOMIC_RELAXED,
kAcquire = __ATOMIC_ACQUIRE,
kRelease = __ATOMIC_RELEASE,
kAcqRel = __ATOMIC_ACQ_REL,
kSeqCst = __ATOMIC_SEQ_CST,
};
template<typename T> struct Atomic { T value{}; };
inline void AtomicFence(MemoryOrder order)
{
__atomic_thread_fence((int)order);
}
template<typename T>
inline void AtomicStore(Atomic<T>* a, T value, MemoryOrder order = MemoryOrder::kRelaxed)
{
__atomic_store(&a->value, &value, (int)order);
}
template<typename T>
inline T AtomicLoad(Atomic<T>* a, MemoryOrder order = MemoryOrder::kRelaxed)
{
T value;
__atomic_load(&a->value, &value, (int)order);
return value;
}
template<typename T>
inline T AtomicFetchIncrement(Atomic<T>* a, MemoryOrder order = MemoryOrder::kRelaxed)
{
return __atomic_fetch_add(&a->value, 1, (int)order);
}
template<typename T>
inline T AtomicFetchDecrement(Atomic<T>* a, MemoryOrder order = MemoryOrder::kRelaxed)
{
return __atomic_fetch_sub(&a->value, 1, (int)order);
}
} // namespace deimos
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