1ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// Copyright 2014 the V8 project authors. All rights reserved. 23484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org// Use of this source code is governed by a BSD-style license that can be 33484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org// found in the LICENSE file. 4ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 5ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// This file is an internal atomic implementation, use atomicops.h instead. 6ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 71e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org#ifndef V8_BASE_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ 81e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org#define V8_BASE_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ 9ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 10ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// AtomicWord is a synonym for intptr_t, and Atomic32 is a synonym for int32, 11ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// which in turn means int. On some LP32 platforms, intptr_t is an int, but 12ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// on others, it's a long. When AtomicWord and Atomic32 are based on different 13ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// fundamental types, their pointers are incompatible. 14ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// 15ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// This file defines function overloads to allow both AtomicWord and Atomic32 16ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// data to be used with this interface. 17ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// 18ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// On LP64 platforms, AtomicWord and Atomic64 are both always long, 19ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org// so this problem doesn't occur. 20ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 21ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org#if !defined(V8_HOST_ARCH_64_BIT) 22ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 23ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orgnamespace v8 { 241e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.orgnamespace base { 25ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 26ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr, 27ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord old_value, 28ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord new_value) { 29ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org return NoBarrier_CompareAndSwap( 30ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); 31ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 32ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 33ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr, 34ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord new_value) { 35ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org return NoBarrier_AtomicExchange( 36ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), new_value); 37ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 38ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 39ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord NoBarrier_AtomicIncrement(volatile AtomicWord* ptr, 40ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord increment) { 41ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org return NoBarrier_AtomicIncrement( 42ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), increment); 43ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 44ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 45ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord Barrier_AtomicIncrement(volatile AtomicWord* ptr, 46ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord increment) { 47ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org return Barrier_AtomicIncrement( 48ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), increment); 49ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 50ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 51ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr, 52ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord old_value, 53ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord new_value) { 541e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org return v8::base::Acquire_CompareAndSwap( 55ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); 56ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 57ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 58ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, 59ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord old_value, 60ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org AtomicWord new_value) { 611e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org return v8::base::Release_CompareAndSwap( 62ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); 63ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 64ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 65ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) { 66ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org NoBarrier_Store( 67ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), value); 68ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 69ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 70ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { 711e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org return v8::base::Acquire_Store( 72ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), value); 73ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 74ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 75ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { 761e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org return v8::base::Release_Store( 77ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile Atomic32*>(ptr), value); 78ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 79ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 80ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) { 81ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org return NoBarrier_Load( 82ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile const Atomic32*>(ptr)); 83ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 84ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 85ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { 861e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org return v8::base::Acquire_Load( 87ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile const Atomic32*>(ptr)); 88ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 89ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 90ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.orginline AtomicWord Release_Load(volatile const AtomicWord* ptr) { 911e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org return v8::base::Release_Load( 92ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org reinterpret_cast<volatile const Atomic32*>(ptr)); 93ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org} 94ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 951e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org} } // namespace v8::base 96ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 97ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org#endif // !defined(V8_HOST_ARCH_64_BIT) 98ca2f2040e0e1a10df95bec18e69499f85f4c1316machenbach@chromium.org 991e2d50cf3d94ff48285da107b7a9da1ad0fc873dmachenbach@chromium.org#endif // V8_BASE_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ 100