#pragma once

#include <stdint.h>

namespace il2cpp
{
namespace vm
{

class Atomic
{
public:
	static int32_t Add(volatile int32_t* location1, int32_t value);
	static int64_t Add64(volatile int64_t* location1, int64_t value);
	static int32_t Increment(volatile int32_t* value);
	static int64_t Increment64(volatile int64_t* value);
	static int32_t Decrement(volatile int32_t* value);
	static int64_t Decrement64(volatile int64_t* value);
	static int32_t CompareExchange(volatile int32_t* dest, int32_t exchange, int32_t comparand);
	static int64_t CompareExchange64(volatile int64_t* dest, int64_t exchange, int64_t comparand);
	static void* CompareExchangePointer(void* volatile* dest, void* exchange, void* comparand);
	static int32_t Exchange(volatile int32_t* dest, int32_t exchange);
	static int64_t Exchange64(volatile int64_t* dest, int64_t exchange);
	static void* ExchangePointer(void* volatile* dest, void* exchange);
	static int64_t Read64(volatile int64_t* addr);
	static void MemoryBarrier();

	static inline uint32_t Add(volatile uint32_t* location1, uint32_t value)
	{
		return static_cast<uint32_t> (Add((volatile int32_t*)location1, (int32_t)value));
	}

	template<typename T>
	static inline T* CompareExchangePointer(T* volatile* dest, T* newValue, T* oldValue)
	{
		return static_cast<T*> (CompareExchangePointer((void* volatile*)dest, newValue, oldValue));
	}

	template<typename T>
	static inline T* ExchangePointer(T* volatile* dest, T* newValue)
	{
		return static_cast<T*> (ExchangePointer((void* volatile*)dest, newValue));
	}

	static inline uint64_t Read64(volatile uint64_t* addr)
	{
		return static_cast<uint64_t> (Read64((volatile int64_t*)addr));
	}

	template<typename T>
	static inline T* ReadPointer(T* volatile* pointer)
	{
#if IL2CPP_SIZEOF_VOID_P == 4
		return reinterpret_cast<T*> (Add(reinterpret_cast<volatile int32_t*> (pointer), 0));
#else
		return reinterpret_cast<T*> (Add64(reinterpret_cast<volatile int64_t*> (pointer), 0));
#endif
	}

	static inline uint32_t Increment(volatile uint32_t* value)
	{
		return static_cast<uint32_t> (Increment(reinterpret_cast<volatile int32_t*> (value)));
	}
	static inline uint64_t Increment64(volatile uint64_t* value)
	{
		return static_cast<uint64_t> (Increment64(reinterpret_cast<volatile int64_t*> (value)));
	}
	static inline uint32_t Decrement(volatile uint32_t* value)
	{
		return static_cast<uint32_t> (Decrement(reinterpret_cast<volatile int32_t*> (value)));
	}
	static inline uint64_t Decrement64(volatile uint64_t* value)
	{
		return static_cast<uint64_t> (Decrement64(reinterpret_cast<volatile int64_t*> (value)));
	}
	static inline uint32_t CompareExchange(volatile uint32_t* value, uint32_t newValue, uint32_t oldValue)
	{
		return static_cast<uint32_t> (CompareExchange(reinterpret_cast<volatile int32_t*> (value), newValue, oldValue));
	}
	static inline uint64_t CompareExchange64(volatile uint64_t* value, uint64_t newValue, uint64_t oldValue)
	{
		return static_cast<uint64_t> (CompareExchange64(reinterpret_cast<volatile int64_t*> (value), newValue, oldValue));
	}
	static inline uint32_t Exchange(volatile uint32_t* value, uint32_t newValue)
	{
		return static_cast<uint32_t> (Exchange(reinterpret_cast<volatile int32_t*> (value), newValue));
	}
	static inline uint64_t Exchange64(volatile uint64_t* value, uint64_t newValue)
	{
		return static_cast<uint64_t> (Exchange64(reinterpret_cast<volatile int64_t*> (value), newValue));
	}
};

} /* namesapce vm */
} /* namespace il2cpp */
