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1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NET_DISK_CACHE_ENTRY_IMPL_H_ | 5 #ifndef NET_DISK_CACHE_ENTRY_IMPL_H_ |
6 #define NET_DISK_CACHE_ENTRY_IMPL_H_ | 6 #define NET_DISK_CACHE_ENTRY_IMPL_H_ |
7 | 7 |
8 #include "base/scoped_ptr.h" | 8 #include "base/scoped_ptr.h" |
9 #include "net/disk_cache/disk_cache.h" | 9 #include "net/disk_cache/disk_cache.h" |
10 #include "net/disk_cache/storage_block.h" | 10 #include "net/disk_cache/storage_block.h" |
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40 virtual int32 GetDataSize(int index) const; | 40 virtual int32 GetDataSize(int index) const; |
41 virtual int ReadData(int index, int offset, net::IOBuffer* buf, int buf_len, | 41 virtual int ReadData(int index, int offset, net::IOBuffer* buf, int buf_len, |
42 net::CompletionCallback* completion_callback); | 42 net::CompletionCallback* completion_callback); |
43 virtual int WriteData(int index, int offset, net::IOBuffer* buf, int buf_len, | 43 virtual int WriteData(int index, int offset, net::IOBuffer* buf, int buf_len, |
44 net::CompletionCallback* completion_callback, | 44 net::CompletionCallback* completion_callback, |
45 bool truncate); | 45 bool truncate); |
46 virtual int ReadSparseData(int64 offset, net::IOBuffer* buf, int buf_len, | 46 virtual int ReadSparseData(int64 offset, net::IOBuffer* buf, int buf_len, |
47 net::CompletionCallback* completion_callback); | 47 net::CompletionCallback* completion_callback); |
48 virtual int WriteSparseData(int64 offset, net::IOBuffer* buf, int buf_len, | 48 virtual int WriteSparseData(int64 offset, net::IOBuffer* buf, int buf_len, |
49 net::CompletionCallback* completion_callback); | 49 net::CompletionCallback* completion_callback); |
50 virtual int GetAvailableRange(int64 offset, int len, int64* start); | |
51 virtual int GetAvailableRange(int64 offset, int len, int64* start, | 50 virtual int GetAvailableRange(int64 offset, int len, int64* start, |
52 CompletionCallback* callback); | 51 CompletionCallback* callback); |
53 virtual bool CouldBeSparse() const; | 52 virtual bool CouldBeSparse() const; |
54 virtual void CancelSparseIO(); | 53 virtual void CancelSparseIO(); |
55 virtual int ReadyForSparseIO(net::CompletionCallback* completion_callback); | 54 virtual int ReadyForSparseIO(net::CompletionCallback* completion_callback); |
56 | 55 |
57 inline CacheEntryBlock* entry() { | 56 inline CacheEntryBlock* entry() { |
58 return &entry_; | 57 return &entry_; |
59 } | 58 } |
60 | 59 |
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115 // Generates a histogram for the time spent working on this operation. | 114 // Generates a histogram for the time spent working on this operation. |
116 void ReportIOTime(Operation op, const base::TimeTicks& start); | 115 void ReportIOTime(Operation op, const base::TimeTicks& start); |
117 | 116 |
118 private: | 117 private: |
119 enum { | 118 enum { |
120 kNumStreams = 3 | 119 kNumStreams = 3 |
121 }; | 120 }; |
122 | 121 |
123 ~EntryImpl(); | 122 ~EntryImpl(); |
124 | 123 |
| 124 // Old Entry interface. |
| 125 int GetAvailableRange(int64 offset, int len, int64* start); |
| 126 |
125 // Initializes the storage for an internal or external data block. | 127 // Initializes the storage for an internal or external data block. |
126 bool CreateDataBlock(int index, int size); | 128 bool CreateDataBlock(int index, int size); |
127 | 129 |
128 // Initializes the storage for an internal or external generic block. | 130 // Initializes the storage for an internal or external generic block. |
129 bool CreateBlock(int size, Addr* address); | 131 bool CreateBlock(int size, Addr* address); |
130 | 132 |
131 // Deletes the data pointed by address, maybe backed by files_[index]. | 133 // Deletes the data pointed by address, maybe backed by files_[index]. |
132 void DeleteData(Addr address, int index); | 134 void DeleteData(Addr address, int index); |
133 | 135 |
134 // Updates ranking information. | 136 // Updates ranking information. |
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189 int unreported_size_[kNumStreams]; // Bytes not reported yet to the backend. | 191 int unreported_size_[kNumStreams]; // Bytes not reported yet to the backend. |
190 bool doomed_; // True if this entry was removed from the cache. | 192 bool doomed_; // True if this entry was removed from the cache. |
191 scoped_ptr<SparseControl> sparse_; // Support for sparse entries. | 193 scoped_ptr<SparseControl> sparse_; // Support for sparse entries. |
192 | 194 |
193 DISALLOW_COPY_AND_ASSIGN(EntryImpl); | 195 DISALLOW_COPY_AND_ASSIGN(EntryImpl); |
194 }; | 196 }; |
195 | 197 |
196 } // namespace disk_cache | 198 } // namespace disk_cache |
197 | 199 |
198 #endif // NET_DISK_CACHE_ENTRY_IMPL_H_ | 200 #endif // NET_DISK_CACHE_ENTRY_IMPL_H_ |
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