Adam Cozzette
7 years ago
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GitHub
commit
a711e3d5b4
56 changed files with 291 additions and 252 deletions
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// Protocol Buffers - Google's data interchange format
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// Copyright 2012 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file is an internal atomic implementation, use atomicops.h instead.
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#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ |
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#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_ |
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// AtomicWord is a synonym for intptr_t, and Atomic32 is a synonym for int32,
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// which in turn means int. On some LP32 platforms, intptr_t is an int, but
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// on others, it's a long. When AtomicWord and Atomic32 are based on different
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// fundamental types, their pointers are incompatible.
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//
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// This file defines function overloads to allow both AtomicWord and Atomic32
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// data to be used with this interface.
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//
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// On LP64 platforms, AtomicWord and Atomic64 are both always long,
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// so this problem doesn't occur.
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#if !defined(GOOGLE_PROTOBUF_ARCH_64_BIT) |
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namespace google { |
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namespace protobuf { |
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namespace internal { |
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inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr, |
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AtomicWord old_value, |
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AtomicWord new_value) { |
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return NoBarrier_CompareAndSwap( |
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reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); |
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} |
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inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr, |
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AtomicWord new_value) { |
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return NoBarrier_AtomicExchange( |
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reinterpret_cast<volatile Atomic32*>(ptr), new_value); |
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} |
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inline AtomicWord NoBarrier_AtomicIncrement(volatile AtomicWord* ptr, |
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AtomicWord increment) { |
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return NoBarrier_AtomicIncrement( |
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reinterpret_cast<volatile Atomic32*>(ptr), increment); |
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} |
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inline AtomicWord Barrier_AtomicIncrement(volatile AtomicWord* ptr, |
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AtomicWord increment) { |
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return Barrier_AtomicIncrement( |
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reinterpret_cast<volatile Atomic32*>(ptr), increment); |
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} |
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inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr, |
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AtomicWord old_value, |
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AtomicWord new_value) { |
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return Acquire_CompareAndSwap( |
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reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); |
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} |
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inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, |
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AtomicWord old_value, |
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AtomicWord new_value) { |
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return Release_CompareAndSwap( |
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reinterpret_cast<volatile Atomic32*>(ptr), old_value, new_value); |
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} |
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inline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) { |
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NoBarrier_Store(reinterpret_cast<volatile Atomic32*>(ptr), value); |
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} |
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inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { |
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return Acquire_Store(reinterpret_cast<volatile Atomic32*>(ptr), value); |
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} |
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inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { |
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return Release_Store(reinterpret_cast<volatile Atomic32*>(ptr), value); |
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} |
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inline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) { |
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return NoBarrier_Load(reinterpret_cast<volatile const Atomic32*>(ptr)); |
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} |
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inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { |
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return Acquire_Load(reinterpret_cast<volatile const Atomic32*>(ptr)); |
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} |
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inline AtomicWord Release_Load(volatile const AtomicWord* ptr) { |
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return Release_Load(reinterpret_cast<volatile const Atomic32*>(ptr)); |
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} |
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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#endif // !defined(GOOGLE_PROTOBUF_ARCH_64_BIT)
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#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ATOMICWORD_COMPAT_H_
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