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 |