| // 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 VM_ATOMIC_WIN_H_ |
| #define VM_ATOMIC_WIN_H_ |
| |
| #if !defined VM_ATOMIC_H_ |
| #error Do not include atomic_win.h directly. Use atomic.h instead. |
| #endif |
| |
| #if !defined(TARGET_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 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 |
| } |
| |
| |
| #if !defined(USING_SIMULATOR) |
| 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 |
| } |
| #endif // !defined(USING_SIMULATOR) |
| |
| } // namespace dart |
| |
| #endif // VM_ATOMIC_WIN_H_ |