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// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_PLATFORM_ATOMIC_WIN_H_
#define RUNTIME_PLATFORM_ATOMIC_WIN_H_
#if !defined RUNTIME_PLATFORM_ATOMIC_H_
#error Do not include atomic_win.h directly. Use atomic.h instead.
#endif
#if !defined(HOST_OS_WINDOWS)
#error This file should only be included on Windows builds.
#endif
namespace dart {
inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
#if defined(HOST_ARCH_X64)
return static_cast<uintptr_t>(
InterlockedIncrement64(reinterpret_cast<LONGLONG*>(p))) -
1;
#elif defined(HOST_ARCH_IA32)
return static_cast<uintptr_t>(
InterlockedIncrement(reinterpret_cast<LONG*>(p))) -
1;
#else
#error Unsupported host architecture.
#endif
}
inline intptr_t AtomicOperations::FetchAndIncrement(intptr_t* p) {
#if defined(HOST_ARCH_X64)
return static_cast<intptr_t>(
InterlockedIncrement64(reinterpret_cast<LONGLONG*>(p))) -
1;
#elif defined(HOST_ARCH_IA32)
return static_cast<intptr_t>(
InterlockedIncrement(reinterpret_cast<LONG*>(p))) -
1;
#else
#error Unsupported host architecture.
#endif
}
inline void AtomicOperations::IncrementBy(intptr_t* p, intptr_t value) {
#if defined(HOST_ARCH_X64)
InterlockedExchangeAdd64(reinterpret_cast<LONGLONG*>(p),
static_cast<LONGLONG>(value));
#elif defined(HOST_ARCH_IA32)
InterlockedExchangeAdd(reinterpret_cast<LONG*>(p), static_cast<LONG>(value));
#else
#error Unsupported host architecture.
#endif
}
inline void AtomicOperations::IncrementInt64By(int64_t* p, int64_t value) {
#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
InterlockedExchangeAdd64(reinterpret_cast<LONGLONG*>(p),
static_cast<LONGLONG>(value));
#else
#error Unsupported host architecture.
#endif
}
inline uintptr_t AtomicOperations::FetchAndDecrement(uintptr_t* p) {
#if defined(HOST_ARCH_X64)
return static_cast<uintptr_t>(
InterlockedDecrement64(reinterpret_cast<LONGLONG*>(p))) +
1;
#elif defined(HOST_ARCH_IA32)
return static_cast<uintptr_t>(
InterlockedDecrement(reinterpret_cast<LONG*>(p))) +
1;
#else
#error Unsupported host architecture.
#endif
}
inline intptr_t AtomicOperations::FetchAndDecrement(intptr_t* p) {
#if defined(HOST_ARCH_X64)
return static_cast<intptr_t>(
InterlockedDecrement64(reinterpret_cast<LONGLONG*>(p))) +
1;
#elif defined(HOST_ARCH_IA32)
return static_cast<intptr_t>(
InterlockedDecrement(reinterpret_cast<LONG*>(p))) +
1;
#else
#error Unsupported host architecture.
#endif
}
inline void AtomicOperations::DecrementBy(intptr_t* p, intptr_t value) {
#if defined(HOST_ARCH_X64)
InterlockedExchangeAdd64(reinterpret_cast<LONGLONG*>(p),
static_cast<LONGLONG>(-value));
#elif defined(HOST_ARCH_IA32)
InterlockedExchangeAdd(reinterpret_cast<LONG*>(p), static_cast<LONG>(-value));
#else
#error Unsupported host architecture.
#endif
}
inline uint32_t AtomicOperations::FetchOrRelaxedUint32(uint32_t* ptr,
uint32_t value) {
return static_cast<uint32_t>(InterlockedOrNoFence(
reinterpret_cast<LONG*>(ptr), static_cast<LONG>(value)));
}
inline uint32_t AtomicOperations::FetchAndRelaxedUint32(uint32_t* ptr,
uint32_t value) {
return static_cast<uint32_t>(InterlockedAndNoFence(
reinterpret_cast<LONG*>(ptr), static_cast<LONG>(value)));
}
inline uword AtomicOperations::CompareAndSwapWord(uword* ptr,
uword old_value,
uword new_value) {
#if defined(HOST_ARCH_X64)
return static_cast<uword>(InterlockedCompareExchange64(
reinterpret_cast<LONGLONG*>(ptr), static_cast<LONGLONG>(new_value),
static_cast<LONGLONG>(old_value)));
#elif defined(HOST_ARCH_IA32)
return static_cast<uword>(InterlockedCompareExchange(
reinterpret_cast<LONG*>(ptr), static_cast<LONG>(new_value),
static_cast<LONG>(old_value)));
#else
#error Unsupported host architecture.
#endif
}
inline uint32_t AtomicOperations::CompareAndSwapUint32(uint32_t* ptr,
uint32_t old_value,
uint32_t new_value) {
#if (defined(HOST_ARCH_X64) || defined(HOST_ARCH_IA32))
return static_cast<uint32_t>(InterlockedCompareExchange(
reinterpret_cast<LONG*>(ptr), static_cast<LONG>(new_value),
static_cast<LONG>(old_value)));
#else
#error Unsupported host architecture.
#endif
}
template <typename T>
inline T AtomicOperations::LoadAcquire(T* ptr) {
#if (defined(HOST_ARCH_X64) || defined(HOST_ARCH_IA32))
return *ptr;
#else
#error Unsupported host architecture.
#endif
}
template <typename T>
inline void AtomicOperations::StoreRelease(T* ptr, T value) {
#if (defined(HOST_ARCH_X64) || defined(HOST_ARCH_IA32))
*ptr = value;
#else
#error Unsupported host architecture.
#endif
}
} // namespace dart
#endif // RUNTIME_PLATFORM_ATOMIC_WIN_H_