| Index: third_party/libphonenumber/cpp/src/base/atomicops_internals_x86_msvc.h
|
| ===================================================================
|
| --- third_party/libphonenumber/cpp/src/base/atomicops_internals_x86_msvc.h (revision 0)
|
| +++ third_party/libphonenumber/cpp/src/base/atomicops_internals_x86_msvc.h (revision 0)
|
| @@ -0,0 +1,181 @@
|
| +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
|
| +// Use of this source code is governed by a BSD-style license that can be
|
| +// found in the LICENSE file.
|
| +
|
| +// This file is an internal atomic implementation, use base/atomicops.h instead.
|
| +
|
| +#ifndef BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
|
| +#define BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
|
| +#pragma once
|
| +
|
| +#include <windows.h>
|
| +
|
| +namespace base {
|
| +namespace subtle {
|
| +
|
| +inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
|
| + Atomic32 old_value,
|
| + Atomic32 new_value) {
|
| + LONG result = InterlockedCompareExchange(
|
| + reinterpret_cast<volatile LONG*>(ptr),
|
| + static_cast<LONG>(new_value),
|
| + static_cast<LONG>(old_value));
|
| + return static_cast<Atomic32>(result);
|
| +}
|
| +
|
| +inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
|
| + Atomic32 new_value) {
|
| + LONG result = InterlockedExchange(
|
| + reinterpret_cast<volatile LONG*>(ptr),
|
| + static_cast<LONG>(new_value));
|
| + return static_cast<Atomic32>(result);
|
| +}
|
| +
|
| +inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
|
| + Atomic32 increment) {
|
| + return InterlockedExchangeAdd(
|
| + reinterpret_cast<volatile LONG*>(ptr),
|
| + static_cast<LONG>(increment)) + increment;
|
| +}
|
| +
|
| +inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
|
| + Atomic32 increment) {
|
| + return Barrier_AtomicIncrement(ptr, increment);
|
| +}
|
| +
|
| +#if !(defined(_MSC_VER) && _MSC_VER >= 1400)
|
| +#error "We require at least vs2005 for MemoryBarrier"
|
| +#endif
|
| +inline void MemoryBarrier() {
|
| + // We use MemoryBarrier from WinNT.h
|
| + ::MemoryBarrier();
|
| +}
|
| +
|
| +inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
|
| + Atomic32 old_value,
|
| + Atomic32 new_value) {
|
| + return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
|
| +}
|
| +
|
| +inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
|
| + Atomic32 old_value,
|
| + Atomic32 new_value) {
|
| + return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
|
| +}
|
| +
|
| +inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
|
| + *ptr = value;
|
| +}
|
| +
|
| +inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) {
|
| + NoBarrier_AtomicExchange(ptr, value);
|
| + // acts as a barrier in this implementation
|
| +}
|
| +
|
| +inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
|
| + *ptr = value; // works w/o barrier for current Intel chips as of June 2005
|
| + // See comments in Atomic64 version of Release_Store() below.
|
| +}
|
| +
|
| +inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
|
| + return *ptr;
|
| +}
|
| +
|
| +inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
|
| + Atomic32 value = *ptr;
|
| + return value;
|
| +}
|
| +
|
| +inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
|
| + MemoryBarrier();
|
| + return *ptr;
|
| +}
|
| +
|
| +#if defined(_WIN64)
|
| +
|
| +// 64-bit low-level operations on 64-bit platform.
|
| +
|
| +COMPILE_ASSERT(sizeof(Atomic64) == sizeof(PVOID), atomic_word_is_atomic);
|
| +
|
| +inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
|
| + Atomic64 old_value,
|
| + Atomic64 new_value) {
|
| + PVOID result = InterlockedCompareExchangePointer(
|
| + reinterpret_cast<volatile PVOID*>(ptr),
|
| + reinterpret_cast<PVOID>(new_value), reinterpret_cast<PVOID>(old_value));
|
| + return reinterpret_cast<Atomic64>(result);
|
| +}
|
| +
|
| +inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
|
| + Atomic64 new_value) {
|
| + PVOID result = InterlockedExchangePointer(
|
| + reinterpret_cast<volatile PVOID*>(ptr),
|
| + reinterpret_cast<PVOID>(new_value));
|
| + return reinterpret_cast<Atomic64>(result);
|
| +}
|
| +
|
| +inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr,
|
| + Atomic64 increment) {
|
| + return InterlockedExchangeAdd64(
|
| + reinterpret_cast<volatile LONGLONG*>(ptr),
|
| + static_cast<LONGLONG>(increment)) + increment;
|
| +}
|
| +
|
| +inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr,
|
| + Atomic64 increment) {
|
| + return Barrier_AtomicIncrement(ptr, increment);
|
| +}
|
| +
|
| +inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
|
| + *ptr = value;
|
| +}
|
| +
|
| +inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) {
|
| + NoBarrier_AtomicExchange(ptr, value);
|
| + // acts as a barrier in this implementation
|
| +}
|
| +
|
| +inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
|
| + *ptr = value; // works w/o barrier for current Intel chips as of June 2005
|
| +
|
| + // When new chips come out, check:
|
| + // IA-32 Intel Architecture Software Developer's Manual, Volume 3:
|
| + // System Programming Guide, Chatper 7: Multiple-processor management,
|
| + // Section 7.2, Memory Ordering.
|
| + // Last seen at:
|
| + // http://developer.intel.com/design/pentium4/manuals/index_new.htm
|
| +}
|
| +
|
| +inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
|
| + return *ptr;
|
| +}
|
| +
|
| +inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
|
| + Atomic64 value = *ptr;
|
| + return value;
|
| +}
|
| +
|
| +inline Atomic64 Release_Load(volatile const Atomic64* ptr) {
|
| + MemoryBarrier();
|
| + return *ptr;
|
| +}
|
| +
|
| +inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
|
| + Atomic64 old_value,
|
| + Atomic64 new_value) {
|
| + return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
|
| +}
|
| +
|
| +inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
|
| + Atomic64 old_value,
|
| + Atomic64 new_value) {
|
| + return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
|
| +}
|
| +
|
| +
|
| +#endif // defined(_WIN64)
|
| +
|
| +} // namespace base::subtle
|
| +} // namespace base
|
| +
|
| +#endif // BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
|
|
|
| Property changes on: third_party\libphonenumber\cpp\src\base\atomicops_internals_x86_msvc.h
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
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|