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34 lines
966 B
C++
34 lines
966 B
C++
// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// See net/disk_cache/disk_cache.h for the public interface of the cache.
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#ifndef NET_DISK_CACHE_BLOCKFILE_FILE_BLOCK_H_
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#define NET_DISK_CACHE_BLOCKFILE_FILE_BLOCK_H_
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#include <stddef.h>
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namespace disk_cache {
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// This interface exposes common functionality for a single block of data
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// stored on a file-block, regardless of the real type or size of the block.
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// Used to simplify loading / storing the block from disk.
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class FileBlock {
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public:
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virtual ~FileBlock() {}
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// Returns a pointer to the actual data.
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virtual void* buffer() const = 0;
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// Returns the size of the block;
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virtual size_t size() const = 0;
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// Returns the file offset of this block.
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virtual int offset() const = 0;
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};
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} // namespace disk_cache
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#endif // NET_DISK_CACHE_BLOCKFILE_FILE_BLOCK_H_
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