1a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org/* 2a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 3a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * 4a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * Use of this source code is governed by a BSD-style license 5a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * that can be found in the LICENSE file in the root of the source 6a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * tree. An additional intellectual property rights grant can be found 7a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * in the file PATENTS. All contributing project authors may 8a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org * be found in the AUTHORS file in the root of the source tree. 9a0975ed35e395b79d4c617e57c8c4ed6337087bfandrew@webrtc.org */ 10b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 11b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// Various inline functions and macros to fix compilation of 32 bit target 12b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// on MSVC with /Wp64 flag enabled. 13b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 14b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// The original code can be found here: 15b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// http://src.chromium.org/svn/trunk/src/base/fix_wp64.h 16b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 17b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ 18b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ 19b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 20b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#include <windows.h> 21b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 22b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// Platform SDK fixes when building with /Wp64 for a 32 bits target. 23b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#if !defined(_WIN64) && defined(_Wp64) 24b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 25b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#ifdef InterlockedExchangePointer 26b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#undef InterlockedExchangePointer 27b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// The problem is that the macro provided for InterlockedExchangePointer() is 28b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// doing a (LONG) C-style cast that triggers invariably the warning C4312 when 29b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org// building on 32 bits. 30b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.orginline void* InterlockedExchangePointer(void* volatile* target, void* value) { 31b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org return reinterpret_cast<void*>(static_cast<LONG_PTR>(InterlockedExchange( 32b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org reinterpret_cast<volatile LONG*>(target), 33b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org static_cast<LONG>(reinterpret_cast<LONG_PTR>(value))))); 34b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org} 35b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif // #ifdef InterlockedExchangePointer 36b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 37b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif // #if !defined(_WIN64) && defined(_Wp64) 38b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org 39b015cbede88899f67a53fbbe581b02ce8e32794andrew@webrtc.org#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_FIX_INTERLOCKED_EXCHANGE_POINTER_WINDOWS_H_ 40