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 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// met: 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 92a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// * Redistributions of source code must retain the above copyright 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// * Redistributions in binary form must reproduce the above 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (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 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (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 17c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)// this software without specific prior written permission. 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (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 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (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, 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// This file is an internal atomic implementation, use atomicops.h instead. 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// AtomicWord is a synonym for intptr_t, and Atomic32 is a synonym for int32, 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// which in turn means int. On some LP32 platforms, intptr_t is an int, but 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// on others, it's a long. When AtomicWord and Atomic32 are based on different 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// fundamental types, their pointers are incompatible. 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This file defines function overloads to allow both AtomicWord and Atomic32 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// data to be used with this interface. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// On LP64 platforms, AtomicWord and Atomic64 are both always long, 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// so this problem doesn't occur. 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if !defined(GOOGLE_PROTOBUF_ARCH_64_BIT) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace google { 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace protobuf { 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace internal { 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr, 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AtomicWord old_value, 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AtomicWord new_value) { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NoBarrier_CompareAndSwap( 572a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr, 612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AtomicWord new_value) { 622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NoBarrier_AtomicExchange( 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<volatile Atomic32*>(ptr), new_value); 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord NoBarrier_AtomicIncrement(volatile AtomicWord* ptr, 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AtomicWord increment) { 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NoBarrier_AtomicIncrement( 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<volatile Atomic32*>(ptr), increment); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord Barrier_AtomicIncrement(volatile AtomicWord* ptr, 732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AtomicWord increment) { 74c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return Barrier_AtomicIncrement( 75c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) reinterpret_cast<volatile Atomic32*>(ptr), increment); 76c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 77c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 78c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr, 79c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) AtomicWord old_value, 80c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) AtomicWord new_value) { 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return Acquire_CompareAndSwap( 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AtomicWord old_value, 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) AtomicWord new_value) { 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return Release_CompareAndSwap( 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) { 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) NoBarrier_Store(reinterpret_cast<volatile Atomic32*>(ptr), value); 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return Acquire_Store(reinterpret_cast<volatile Atomic32*>(ptr), value); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { 101c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return Release_Store(reinterpret_cast<volatile Atomic32*>(ptr), value); 102c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) { 1052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return NoBarrier_Load(reinterpret_cast<volatile const Atomic32*>(ptr)); 1062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return Acquire_Load(reinterpret_cast<volatile const Atomic32*>(ptr)); 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)inline AtomicWord Release_Load(volatile const AtomicWord* ptr) { 113c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return Release_Load(reinterpret_cast<volatile const Atomic32*>(ptr)); 1142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 116c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)} // namespace internal 1172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace protobuf 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} // namespace google 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // !defined(GOOGLE_PROTOBUF_ARCH_64_BIT) 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)