| Index: content/renderer/shared_memory_seqlock_reader.h
|
| diff --git a/content/renderer/shared_memory_seqlock_reader.h b/content/renderer/shared_memory_seqlock_reader.h
|
| deleted file mode 100644
|
| index a849e3470bce5da851a4898a24426cbed4b9545e..0000000000000000000000000000000000000000
|
| --- a/content/renderer/shared_memory_seqlock_reader.h
|
| +++ /dev/null
|
| @@ -1,78 +0,0 @@
|
| -// Copyright 2013 The Chromium Authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#ifndef CONTENT_RENDERER_SHARED_MEMORY_SEQLOCK_READER_H_
|
| -#define CONTENT_RENDERER_SHARED_MEMORY_SEQLOCK_READER_H_
|
| -
|
| -#include <stddef.h>
|
| -
|
| -#include <memory>
|
| -
|
| -#include "base/logging.h"
|
| -#include "base/macros.h"
|
| -#include "base/memory/shared_memory.h"
|
| -#include "device/base/synchronization/shared_memory_seqlock_buffer.h"
|
| -
|
| -namespace content {
|
| -namespace internal {
|
| -
|
| -class SharedMemorySeqLockReaderBase {
|
| - protected:
|
| - SharedMemorySeqLockReaderBase();
|
| - virtual ~SharedMemorySeqLockReaderBase();
|
| -
|
| - void* InitializeSharedMemory(
|
| - base::SharedMemoryHandle shared_memory_handle,
|
| - size_t buffer_size);
|
| -
|
| - bool FetchFromBuffer(device::OneWriterSeqLock* seqlock,
|
| - void* final,
|
| - void* temp,
|
| - void* from,
|
| - size_t size);
|
| -
|
| - static const int kMaximumContentionCount = 10;
|
| - base::SharedMemoryHandle renderer_shared_memory_handle_;
|
| - std::unique_ptr<base::SharedMemory> renderer_shared_memory_;
|
| -};
|
| -
|
| -} // namespace internal
|
| -
|
| -// Template argument Data should be a pod-like structure only containing
|
| -// data fields, such that it is copyable by memcpy method.
|
| -template<typename Data>
|
| -class SharedMemorySeqLockReader
|
| - : private internal::SharedMemorySeqLockReaderBase {
|
| - public:
|
| - SharedMemorySeqLockReader() : buffer_(0) { }
|
| - virtual ~SharedMemorySeqLockReader() { }
|
| -
|
| - bool GetLatestData(Data* data) {
|
| - DCHECK(buffer_);
|
| - DCHECK(sizeof(*data) == sizeof(*temp_buffer_));
|
| - return FetchFromBuffer(&buffer_->seqlock, data, temp_buffer_.get(),
|
| - &buffer_->data, sizeof(*temp_buffer_));
|
| - }
|
| -
|
| - bool Initialize(base::SharedMemoryHandle shared_memory_handle) {
|
| - if (void* memory = InitializeSharedMemory(
|
| - shared_memory_handle,
|
| - sizeof(device::SharedMemorySeqLockBuffer<Data>))) {
|
| - buffer_ = static_cast<device::SharedMemorySeqLockBuffer<Data>*>(memory);
|
| - temp_buffer_.reset(new Data);
|
| - return true;
|
| - }
|
| - return false;
|
| - }
|
| -
|
| - private:
|
| - device::SharedMemorySeqLockBuffer<Data>* buffer_;
|
| - std::unique_ptr<Data> temp_buffer_;
|
| -
|
| - DISALLOW_COPY_AND_ASSIGN(SharedMemorySeqLockReader);
|
| -};
|
| -
|
| -} // namespace content
|
| -
|
| -#endif // CONTENT_RENDERER_SHARED_MEMORY_SEQLOCK_READER_H_
|
|
|