1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file under third_party_mods/chromium directory of 4 // source tree or at 5 // http://src.chromium.org/viewvc/chrome/trunk/src/LICENSE 6 7 // Various inline functions and macros to fix compilation of 32 bit target 8 // on MSVC with /Wp64 flag enabled. 9 10 // The original code can be found here: 11 // http://src.chromium.org/svn/trunk/src/base/fix_wp64.h 12 13 #ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ 14 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ 15 16 #include <windows.h> 17 18 // Platform SDK fixes when building with /Wp64 for a 32 bits target. 19 #if !defined(_WIN64) && defined(_Wp64) 20 21 #ifdef InterlockedExchangePointer 22 #undef InterlockedExchangePointer 23 // The problem is that the macro provided for InterlockedExchangePointer() is 24 // doing a (LONG) C-style cast that triggers invariably the warning C4312 when 25 // building on 32 bits. 26 inline void* InterlockedExchangePointer(void* volatile* target, void* value) { 27 return reinterpret_cast<void*>(static_cast<LONG_PTR>(InterlockedExchange( 28 reinterpret_cast<volatile LONG*>(target), 29 static_cast<LONG>(reinterpret_cast<LONG_PTR>(value))))); 30 } 31 #endif // #ifdef InterlockedExchangePointer 32 33 #endif // #if !defined(_WIN64) && defined(_Wp64) 34 35 #endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ 36
