| /* |
| * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| // Various inline functions and macros to fix compilation of 32 bit target |
| // on MSVC with /Wp64 flag enabled. |
| |
| // The original code can be found here: |
| // http://src.chromium.org/svn/trunk/src/base/fix_wp64.h |
| |
| #ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ |
| #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ |
| |
| #include <windows.h> |
| |
| // Platform SDK fixes when building with /Wp64 for a 32 bits target. |
| #if !defined(_WIN64) && defined(_Wp64) |
| |
| #ifdef InterlockedExchangePointer |
| #undef InterlockedExchangePointer |
| // The problem is that the macro provided for InterlockedExchangePointer() is |
| // doing a (LONG) C-style cast that triggers invariably the warning C4312 when |
| // building on 32 bits. |
| inline void* InterlockedExchangePointer(void* volatile* target, void* value) { |
| return reinterpret_cast<void*>(static_cast<LONG_PTR>(InterlockedExchange( |
| reinterpret_cast<volatile LONG*>(target), |
| static_cast<LONG>(reinterpret_cast<LONG_PTR>(value))))); |
| } |
| #endif // #ifdef InterlockedExchangePointer |
| |
| #endif // #if !defined(_WIN64) && defined(_Wp64) |
| |
| #endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ |
