1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// 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_INTERNAL_ENTRY_H_
#define NET_DISK_CACHE_FLASH_INTERNAL_ENTRY_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "net/base/completion_callback.h"
#include "net/base/net_export.h"
#include "net/disk_cache/flash/format.h"
namespace net {
class IOBuffer;
} // namespace net
namespace disk_cache {
struct KeyAndStreamSizes {
KeyAndStreamSizes();
std::string key;
int stream_sizes[kFlashLogStoreEntryNumStreams];
};
class LogStore;
class LogStoreEntry;
// Actual entry implementation that does all the work of reading, writing and
// storing data.
class NET_EXPORT_PRIVATE InternalEntry
: public base::RefCountedThreadSafe<InternalEntry> {
friend class base::RefCountedThreadSafe<InternalEntry>;
public:
InternalEntry(const std::string& key, LogStore* store);
InternalEntry(int32 id, LogStore* store);
scoped_ptr<KeyAndStreamSizes> Init();
int32 GetDataSize(int index) const;
int ReadData(int index, int offset, net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback);
int WriteData(int index, int offset, net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback);
void Close();
private:
bool WriteKey(LogStoreEntry* entry, const std::string& key);
bool ReadKey(LogStoreEntry* entry, std::string* key);
~InternalEntry();
LogStore* store_;
scoped_ptr<LogStoreEntry> entry_;
DISALLOW_COPY_AND_ASSIGN(InternalEntry);
};
} // namespace disk_cache
#endif // NET_DISK_CACHE_FLASH_INTERNAL_ENTRY_H_
|
