15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Protocol Buffers - Google's data interchange format 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright 2012 Google Inc. All rights reserved. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// http://code.google.com/p/protobuf/ 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Redistribution and use in source and binary forms, with or without 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// modification, are permitted provided that the following conditions are 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// met: 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions of source code must retain the above copyright 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions in binary form must reproduce the above 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// copyright notice, this list of conditions and the following disclaimer 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// in the documentation and/or other materials provided with the 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// distribution. 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Neither the name of Google Inc. nor the names of its 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// contributors may be used to endorse or promote products derived from 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// this software without specific prior written permission. 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The compilation of extension_set.cc fails when windows.h is included. 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Therefore we move the code depending on windows.h to this separate cc file. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Don't compile this file for people not concerned about thread safety. 353551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#ifndef GOOGLE_PROTOBUF_NO_THREAD_SAFETY 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <google/protobuf/stubs/atomicops.h> 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_X86_MSVC_H_ 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace google { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace protobuf { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace internal { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline void MemoryBarrier() { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We use MemoryBarrier from WinNT.h 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::MemoryBarrier(); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic32 old_value, 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic32 new_value) { 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LONG result = InterlockedCompareExchange( 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<volatile LONG*>(ptr), 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<LONG>(new_value), 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<LONG>(old_value)); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return static_cast<Atomic32>(result); 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic32 new_value) { 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LONG result = InterlockedExchange( 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<volatile LONG*>(ptr), 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<LONG>(new_value)); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return static_cast<Atomic32>(result); 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr, 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic32 increment) { 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return InterlockedExchangeAdd( 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<volatile LONG*>(ptr), 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<LONG>(increment)) + increment; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(_WIN64) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 64-bit low-level operations on 64-bit platform. 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic64 old_value, 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic64 new_value) { 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PVOID result = InterlockedCompareExchangePointer( 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<volatile PVOID*>(ptr), 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<PVOID>(new_value), reinterpret_cast<PVOID>(old_value)); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return reinterpret_cast<Atomic64>(result); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic64 new_value) { 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PVOID result = InterlockedExchangePointer( 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<volatile PVOID*>(ptr), 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<PVOID>(new_value)); 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return reinterpret_cast<Atomic64>(result); 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr, 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Atomic64 increment) { 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return InterlockedExchangeAdd64( 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) reinterpret_cast<volatile LONGLONG*>(ptr), 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static_cast<LONGLONG>(increment)) + increment; 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // defined(_WIN64) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace internal 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace protobuf 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace google 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_X86_MSVC_H_ 1123551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#endif // GOOGLE_PROTOBUF_NO_THREAD_SAFETY 113