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// Copyright (c) 2012 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 NET_DISK_CACHE_FLASH_LOG_ENTRY_H_
#define NET_DISK_CACHE_FLASH_LOG_ENTRY_H_
#include <vector>
#include "base/basictypes.h"
#include "base/gtest_prod_util.h"
#include "net/base/net_export.h"
#include "net/disk_cache/flash/format.h"
namespace net {
class IOBuffer;
};
namespace disk_cache {
class LogStructuredStore;
class NET_EXPORT_PRIVATE CacheEntry {
public:
explicit CacheEntry(LogStructuredStore* store);
CacheEntry(LogStructuredStore* store, int32 id);
~CacheEntry();
bool Init();
bool Close();
int32 id() const;
int32 GetDataSize(int index) const;
int ReadData(int index, int offset, net::IOBuffer* buf, int buf_len);
int WriteData(int index, int offset, net::IOBuffer* buf, int buf_len);
private:
struct Stream {
Stream();
~Stream();
int offset;
int size;
std::vector<char> write_buffer;
};
bool OnDisk() const;
bool InvalidStream(int stream_index) const;
int32 Size() const;
bool Save();
LogStructuredStore* store_;
int32 id_;
Stream streams_[kFlashCacheEntryNumStreams];
bool init_;
bool closed_;
DISALLOW_COPY_AND_ASSIGN(CacheEntry);
};
} // namespace disk_cache
#endif // NET_DISK_CACHE_FLASH_LOG_ENTRY_H_
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