mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-12-27 02:40:58 +01:00
78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
// Copyright 2020 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <cstring>
|
|
#include <memory>
|
|
|
|
#include "common/common_types.h"
|
|
|
|
#if _MSC_VER
|
|
#include <intrin.h>
|
|
#endif
|
|
|
|
namespace Common {
|
|
|
|
#if _MSC_VER
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected) {
|
|
const u8 result =
|
|
_InterlockedCompareExchange8(reinterpret_cast<volatile char*>(pointer), value, expected);
|
|
return result == expected;
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected) {
|
|
const u16 result =
|
|
_InterlockedCompareExchange16(reinterpret_cast<volatile short*>(pointer), value, expected);
|
|
return result == expected;
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected) {
|
|
const u32 result =
|
|
_InterlockedCompareExchange(reinterpret_cast<volatile long*>(pointer), value, expected);
|
|
return result == expected;
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected) {
|
|
const u64 result = _InterlockedCompareExchange64(reinterpret_cast<volatile __int64*>(pointer),
|
|
value, expected);
|
|
return result == expected;
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected) {
|
|
return _InterlockedCompareExchange128(reinterpret_cast<volatile __int64*>(pointer), value[1],
|
|
value[0],
|
|
reinterpret_cast<__int64*>(expected.data())) != 0;
|
|
}
|
|
|
|
#else
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected) {
|
|
return __sync_bool_compare_and_swap(pointer, expected, value);
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected) {
|
|
return __sync_bool_compare_and_swap(pointer, expected, value);
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected) {
|
|
return __sync_bool_compare_and_swap(pointer, expected, value);
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected) {
|
|
return __sync_bool_compare_and_swap(pointer, expected, value);
|
|
}
|
|
|
|
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected) {
|
|
unsigned __int128 value_a;
|
|
unsigned __int128 expected_a;
|
|
std::memcpy(&value_a, value.data(), sizeof(u128));
|
|
std::memcpy(&expected_a, expected.data(), sizeof(u128));
|
|
return __sync_bool_compare_and_swap((unsigned __int128*)pointer, expected_a, value_a);
|
|
}
|
|
|
|
#endif
|
|
|
|
} // namespace Common
|