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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 #include "net/disk_cache/tracing/tracing_cache_backend.h" | 5 #include "net/disk_cache/tracing/tracing_cache_backend.h" |
6 | 6 |
7 #include "net/base/net_errors.h" | 7 #include "net/base/net_errors.h" |
8 | 8 |
9 namespace disk_cache { | 9 namespace disk_cache { |
10 | 10 |
11 // Proxies entry objects created by the real underlying backend. Backend users | 11 // Proxies entry objects created by the real underlying backend. Backend users |
12 // will only see the proxy entries. It is necessary for recording the backend | 12 // will only see the proxy entries. It is necessary for recording the backend |
13 // operations since often non-trivial work is invoked directly on entries. | 13 // operations since often non-trivial work is invoked directly on entries. |
14 class EntryProxy : public Entry, public base::RefCountedThreadSafe<EntryProxy> { | 14 class EntryProxy : public Entry, public base::RefCountedThreadSafe<EntryProxy> { |
15 public: | 15 public: |
16 EntryProxy(Entry *entry, TracingCacheBackend* backend); | 16 EntryProxy(Entry* entry, TracingCacheBackend* backend); |
17 virtual void Doom() OVERRIDE; | 17 virtual void Doom() OVERRIDE; |
18 virtual void Close() OVERRIDE; | 18 virtual void Close() OVERRIDE; |
19 virtual std::string GetKey() const OVERRIDE; | 19 virtual std::string GetKey() const OVERRIDE; |
20 virtual base::Time GetLastUsed() const OVERRIDE; | 20 virtual base::Time GetLastUsed() const OVERRIDE; |
21 virtual base::Time GetLastModified() const OVERRIDE; | 21 virtual base::Time GetLastModified() const OVERRIDE; |
22 virtual int32 GetDataSize(int index) const OVERRIDE; | 22 virtual int32 GetDataSize(int index) const OVERRIDE; |
23 virtual int ReadData(int index, int offset, IOBuffer* buf, int buf_len, | 23 virtual int ReadData(int index, |
| 24 int offset, |
| 25 IOBuffer* buf, |
| 26 int buf_len, |
24 const CompletionCallback& callback) OVERRIDE; | 27 const CompletionCallback& callback) OVERRIDE; |
25 virtual int WriteData(int index, int offset, IOBuffer* buf, int buf_len, | 28 virtual int WriteData(int index, |
| 29 int offset, |
| 30 IOBuffer* buf, |
| 31 int buf_len, |
26 const CompletionCallback& callback, | 32 const CompletionCallback& callback, |
27 bool truncate) OVERRIDE; | 33 bool truncate) OVERRIDE; |
28 virtual int ReadSparseData(int64 offset, IOBuffer* buf, int buf_len, | 34 virtual int ReadSparseData(int64 offset, |
| 35 IOBuffer* buf, |
| 36 int buf_len, |
29 const CompletionCallback& callback) OVERRIDE; | 37 const CompletionCallback& callback) OVERRIDE; |
30 virtual int WriteSparseData(int64 offset, IOBuffer* buf, int buf_len, | 38 virtual int WriteSparseData(int64 offset, |
| 39 IOBuffer* buf, |
| 40 int buf_len, |
31 const CompletionCallback& callback) OVERRIDE; | 41 const CompletionCallback& callback) OVERRIDE; |
32 virtual int GetAvailableRange(int64 offset, int len, int64* start, | 42 virtual int GetAvailableRange(int64 offset, |
| 43 int len, |
| 44 int64* start, |
33 const CompletionCallback& callback) OVERRIDE; | 45 const CompletionCallback& callback) OVERRIDE; |
34 virtual bool CouldBeSparse() const OVERRIDE; | 46 virtual bool CouldBeSparse() const OVERRIDE; |
35 virtual void CancelSparseIO() OVERRIDE; | 47 virtual void CancelSparseIO() OVERRIDE; |
36 virtual int ReadyForSparseIO(const CompletionCallback& callback) OVERRIDE; | 48 virtual int ReadyForSparseIO(const CompletionCallback& callback) OVERRIDE; |
37 | 49 |
38 private: | 50 private: |
39 friend class base::RefCountedThreadSafe<EntryProxy>; | 51 friend class base::RefCountedThreadSafe<EntryProxy>; |
40 typedef TracingCacheBackend::Operation Operation; | 52 typedef TracingCacheBackend::Operation Operation; |
41 virtual ~EntryProxy(); | 53 virtual ~EntryProxy(); |
42 | 54 |
43 struct RwOpExtra { | 55 struct RwOpExtra { |
44 int index; | 56 int index; |
45 int offset; | 57 int offset; |
46 int buf_len; | 58 int buf_len; |
47 bool truncate; | 59 bool truncate; |
48 }; | 60 }; |
49 | 61 |
50 void RecordEvent(base::TimeTicks start_time, Operation op, RwOpExtra extra, | 62 void RecordEvent(base::TimeTicks start_time, |
| 63 Operation op, |
| 64 RwOpExtra extra, |
51 int result_to_record); | 65 int result_to_record); |
52 void EntryOpComplete(base::TimeTicks start_time, Operation op, | 66 void EntryOpComplete(base::TimeTicks start_time, |
53 RwOpExtra extra, const CompletionCallback& cb, | 67 Operation op, |
| 68 RwOpExtra extra, |
| 69 const CompletionCallback& cb, |
54 int result); | 70 int result); |
55 Entry* entry_; | 71 Entry* entry_; |
56 base::WeakPtr<TracingCacheBackend> backend_; | 72 base::WeakPtr<TracingCacheBackend> backend_; |
57 | 73 |
58 DISALLOW_COPY_AND_ASSIGN(EntryProxy); | 74 DISALLOW_COPY_AND_ASSIGN(EntryProxy); |
59 }; | 75 }; |
60 | 76 |
61 EntryProxy::EntryProxy(Entry *entry, TracingCacheBackend* backend) | 77 EntryProxy::EntryProxy(Entry* entry, TracingCacheBackend* backend) |
62 : entry_(entry), | 78 : entry_(entry), backend_(backend->AsWeakPtr()) { |
63 backend_(backend->AsWeakPtr()) { | |
64 } | 79 } |
65 | 80 |
66 void EntryProxy::Doom() { | 81 void EntryProxy::Doom() { |
67 // TODO(pasko): Record the event. | 82 // TODO(pasko): Record the event. |
68 entry_->Doom(); | 83 entry_->Doom(); |
69 } | 84 } |
70 | 85 |
71 void EntryProxy::Close() { | 86 void EntryProxy::Close() { |
72 // TODO(pasko): Record the event. | 87 // TODO(pasko): Record the event. |
73 entry_->Close(); | 88 entry_->Close(); |
74 Release(); | 89 Release(); |
75 } | 90 } |
76 | 91 |
77 std::string EntryProxy::GetKey() const { | 92 std::string EntryProxy::GetKey() const { |
78 return entry_->GetKey(); | 93 return entry_->GetKey(); |
79 } | 94 } |
80 | 95 |
81 base::Time EntryProxy::GetLastUsed() const { | 96 base::Time EntryProxy::GetLastUsed() const { |
82 return entry_->GetLastUsed(); | 97 return entry_->GetLastUsed(); |
83 } | 98 } |
84 | 99 |
85 base::Time EntryProxy::GetLastModified() const { | 100 base::Time EntryProxy::GetLastModified() const { |
86 return entry_->GetLastModified(); | 101 return entry_->GetLastModified(); |
87 } | 102 } |
88 | 103 |
89 int32 EntryProxy::GetDataSize(int index) const { | 104 int32 EntryProxy::GetDataSize(int index) const { |
90 return entry_->GetDataSize(index); | 105 return entry_->GetDataSize(index); |
91 } | 106 } |
92 | 107 |
93 int EntryProxy::ReadData(int index, int offset, IOBuffer* buf, int buf_len, | 108 int EntryProxy::ReadData(int index, |
| 109 int offset, |
| 110 IOBuffer* buf, |
| 111 int buf_len, |
94 const CompletionCallback& callback) { | 112 const CompletionCallback& callback) { |
95 base::TimeTicks start_time = base::TimeTicks::Now(); | 113 base::TimeTicks start_time = base::TimeTicks::Now(); |
96 RwOpExtra extra; | 114 RwOpExtra extra; |
97 extra.index = index; | 115 extra.index = index; |
98 extra.offset = offset; | 116 extra.offset = offset; |
99 extra.buf_len = buf_len; | 117 extra.buf_len = buf_len; |
100 extra.truncate = false; | 118 extra.truncate = false; |
101 int rv = entry_->ReadData( | 119 int rv = entry_->ReadData(index, |
102 index, offset, buf, buf_len, | 120 offset, |
103 base::Bind(&EntryProxy::EntryOpComplete, this, start_time, | 121 buf, |
104 TracingCacheBackend::OP_READ, extra, callback)); | 122 buf_len, |
| 123 base::Bind(&EntryProxy::EntryOpComplete, |
| 124 this, |
| 125 start_time, |
| 126 TracingCacheBackend::OP_READ, |
| 127 extra, |
| 128 callback)); |
105 if (rv != net::ERR_IO_PENDING) { | 129 if (rv != net::ERR_IO_PENDING) { |
106 RecordEvent(start_time, TracingCacheBackend::OP_READ, extra, rv); | 130 RecordEvent(start_time, TracingCacheBackend::OP_READ, extra, rv); |
107 } | 131 } |
108 return rv; | 132 return rv; |
109 } | 133 } |
110 | 134 |
111 int EntryProxy::WriteData(int index, int offset, IOBuffer* buf, int buf_len, | 135 int EntryProxy::WriteData(int index, |
112 const CompletionCallback& callback, | 136 int offset, |
113 bool truncate) { | 137 IOBuffer* buf, |
| 138 int buf_len, |
| 139 const CompletionCallback& callback, |
| 140 bool truncate) { |
114 base::TimeTicks start_time = base::TimeTicks::Now(); | 141 base::TimeTicks start_time = base::TimeTicks::Now(); |
115 RwOpExtra extra; | 142 RwOpExtra extra; |
116 extra.index = index; | 143 extra.index = index; |
117 extra.offset = offset; | 144 extra.offset = offset; |
118 extra.buf_len = buf_len; | 145 extra.buf_len = buf_len; |
119 extra.truncate = truncate; | 146 extra.truncate = truncate; |
120 int rv = entry_->WriteData(index, offset, buf, buf_len, | 147 int rv = entry_->WriteData(index, |
121 base::Bind(&EntryProxy::EntryOpComplete, this, start_time, | 148 offset, |
122 TracingCacheBackend::OP_WRITE, extra, callback), | 149 buf, |
123 truncate); | 150 buf_len, |
| 151 base::Bind(&EntryProxy::EntryOpComplete, |
| 152 this, |
| 153 start_time, |
| 154 TracingCacheBackend::OP_WRITE, |
| 155 extra, |
| 156 callback), |
| 157 truncate); |
124 if (rv != net::ERR_IO_PENDING) { | 158 if (rv != net::ERR_IO_PENDING) { |
125 RecordEvent(start_time, TracingCacheBackend::OP_WRITE, extra, rv); | 159 RecordEvent(start_time, TracingCacheBackend::OP_WRITE, extra, rv); |
126 } | 160 } |
127 return rv; | 161 return rv; |
128 } | 162 } |
129 | 163 |
130 int EntryProxy::ReadSparseData(int64 offset, IOBuffer* buf, int buf_len, | 164 int EntryProxy::ReadSparseData(int64 offset, |
131 const CompletionCallback& callback) { | 165 IOBuffer* buf, |
| 166 int buf_len, |
| 167 const CompletionCallback& callback) { |
132 // TODO(pasko): Record the event. | 168 // TODO(pasko): Record the event. |
133 return entry_->ReadSparseData(offset, buf, buf_len, callback); | 169 return entry_->ReadSparseData(offset, buf, buf_len, callback); |
134 } | 170 } |
135 | 171 |
136 int EntryProxy::WriteSparseData(int64 offset, IOBuffer* buf, int buf_len, | 172 int EntryProxy::WriteSparseData(int64 offset, |
137 const CompletionCallback& callback) { | 173 IOBuffer* buf, |
| 174 int buf_len, |
| 175 const CompletionCallback& callback) { |
138 // TODO(pasko): Record the event. | 176 // TODO(pasko): Record the event. |
139 return entry_->WriteSparseData(offset, buf, buf_len, callback); | 177 return entry_->WriteSparseData(offset, buf, buf_len, callback); |
140 } | 178 } |
141 | 179 |
142 int EntryProxy::GetAvailableRange(int64 offset, int len, int64* start, | 180 int EntryProxy::GetAvailableRange(int64 offset, |
143 const CompletionCallback& callback) { | 181 int len, |
| 182 int64* start, |
| 183 const CompletionCallback& callback) { |
144 return entry_->GetAvailableRange(offset, len, start, callback); | 184 return entry_->GetAvailableRange(offset, len, start, callback); |
145 } | 185 } |
146 | 186 |
147 bool EntryProxy::CouldBeSparse() const { | 187 bool EntryProxy::CouldBeSparse() const { |
148 return entry_->CouldBeSparse(); | 188 return entry_->CouldBeSparse(); |
149 } | 189 } |
150 | 190 |
151 void EntryProxy::CancelSparseIO() { | 191 void EntryProxy::CancelSparseIO() { |
152 return entry_->CancelSparseIO(); | 192 return entry_->CancelSparseIO(); |
153 } | 193 } |
154 | 194 |
155 int EntryProxy::ReadyForSparseIO(const CompletionCallback& callback) { | 195 int EntryProxy::ReadyForSparseIO(const CompletionCallback& callback) { |
156 return entry_->ReadyForSparseIO(callback); | 196 return entry_->ReadyForSparseIO(callback); |
157 } | 197 } |
158 | 198 |
159 void EntryProxy::RecordEvent(base::TimeTicks start_time, Operation op, | 199 void EntryProxy::RecordEvent(base::TimeTicks start_time, |
160 RwOpExtra extra, int result_to_record) { | 200 Operation op, |
| 201 RwOpExtra extra, |
| 202 int result_to_record) { |
161 // TODO(pasko): Implement. | 203 // TODO(pasko): Implement. |
162 } | 204 } |
163 | 205 |
164 void EntryProxy::EntryOpComplete(base::TimeTicks start_time, Operation op, | 206 void EntryProxy::EntryOpComplete(base::TimeTicks start_time, |
165 RwOpExtra extra, const CompletionCallback& cb, | 207 Operation op, |
| 208 RwOpExtra extra, |
| 209 const CompletionCallback& cb, |
166 int result) { | 210 int result) { |
167 RecordEvent(start_time, op, extra, result); | 211 RecordEvent(start_time, op, extra, result); |
168 if (!cb.is_null()) { | 212 if (!cb.is_null()) { |
169 cb.Run(result); | 213 cb.Run(result); |
170 } | 214 } |
171 } | 215 } |
172 | 216 |
173 EntryProxy::~EntryProxy() { | 217 EntryProxy::~EntryProxy() { |
174 if (backend_.get()) { | 218 if (backend_.get()) { |
175 backend_->OnDeleteEntry(entry_); | 219 backend_->OnDeleteEntry(entry_); |
176 } | 220 } |
177 } | 221 } |
178 | 222 |
179 TracingCacheBackend::TracingCacheBackend(scoped_ptr<Backend> backend) | 223 TracingCacheBackend::TracingCacheBackend(scoped_ptr<Backend> backend) |
180 : backend_(backend.Pass()) { | 224 : backend_(backend.Pass()) { |
181 } | 225 } |
182 | 226 |
183 TracingCacheBackend::~TracingCacheBackend() { | 227 TracingCacheBackend::~TracingCacheBackend() { |
184 } | 228 } |
185 | 229 |
186 net::CacheType TracingCacheBackend::GetCacheType() const { | 230 net::CacheType TracingCacheBackend::GetCacheType() const { |
187 return backend_->GetCacheType(); | 231 return backend_->GetCacheType(); |
188 } | 232 } |
189 | 233 |
190 int32 TracingCacheBackend::GetEntryCount() const { | 234 int32 TracingCacheBackend::GetEntryCount() const { |
191 return backend_->GetEntryCount(); | 235 return backend_->GetEntryCount(); |
192 } | 236 } |
193 | 237 |
194 void TracingCacheBackend::RecordEvent(base::TimeTicks start_time, Operation op, | 238 void TracingCacheBackend::RecordEvent(base::TimeTicks start_time, |
195 std::string key, Entry* entry, int rv) { | 239 Operation op, |
| 240 std::string key, |
| 241 Entry* entry, |
| 242 int rv) { |
196 // TODO(pasko): Implement. | 243 // TODO(pasko): Implement. |
197 } | 244 } |
198 | 245 |
199 EntryProxy* TracingCacheBackend::FindOrCreateEntryProxy(Entry* entry) { | 246 EntryProxy* TracingCacheBackend::FindOrCreateEntryProxy(Entry* entry) { |
200 EntryProxy* entry_proxy; | 247 EntryProxy* entry_proxy; |
201 EntryToProxyMap::iterator it = open_entries_.find(entry); | 248 EntryToProxyMap::iterator it = open_entries_.find(entry); |
202 if (it != open_entries_.end()) { | 249 if (it != open_entries_.end()) { |
203 entry_proxy = it->second; | 250 entry_proxy = it->second; |
204 entry_proxy->AddRef(); | 251 entry_proxy->AddRef(); |
205 return entry_proxy; | 252 return entry_proxy; |
(...skipping 20 matching lines...) Expand all Loading... |
226 RecordEvent(start_time, op, key, *entry, result); | 273 RecordEvent(start_time, op, key, *entry, result); |
227 if (*entry) { | 274 if (*entry) { |
228 *entry = FindOrCreateEntryProxy(*entry); | 275 *entry = FindOrCreateEntryProxy(*entry); |
229 } | 276 } |
230 if (!callback.is_null()) { | 277 if (!callback.is_null()) { |
231 callback.Run(result); | 278 callback.Run(result); |
232 } | 279 } |
233 } | 280 } |
234 | 281 |
235 net::CompletionCallback TracingCacheBackend::BindCompletion( | 282 net::CompletionCallback TracingCacheBackend::BindCompletion( |
236 Operation op, base::TimeTicks start_time, const std::string& key, | 283 Operation op, |
237 Entry **entry, const net::CompletionCallback& cb) { | 284 base::TimeTicks start_time, |
| 285 const std::string& key, |
| 286 Entry** entry, |
| 287 const net::CompletionCallback& cb) { |
238 return base::Bind(&TracingCacheBackend::BackendOpComplete, | 288 return base::Bind(&TracingCacheBackend::BackendOpComplete, |
239 AsWeakPtr(), start_time, op, key, entry, cb); | 289 AsWeakPtr(), |
| 290 start_time, |
| 291 op, |
| 292 key, |
| 293 entry, |
| 294 cb); |
240 } | 295 } |
241 | 296 |
242 int TracingCacheBackend::OpenEntry(const std::string& key, Entry** entry, | 297 int TracingCacheBackend::OpenEntry(const std::string& key, |
| 298 Entry** entry, |
243 const CompletionCallback& callback) { | 299 const CompletionCallback& callback) { |
244 DCHECK(*entry == NULL); | 300 DCHECK(*entry == NULL); |
245 base::TimeTicks start_time = base::TimeTicks::Now(); | 301 base::TimeTicks start_time = base::TimeTicks::Now(); |
246 int rv = backend_->OpenEntry(key, entry, | 302 int rv = backend_->OpenEntry( |
247 BindCompletion(OP_OPEN, start_time, key, entry, | 303 key, entry, BindCompletion(OP_OPEN, start_time, key, entry, callback)); |
248 callback)); | |
249 if (rv != net::ERR_IO_PENDING) { | 304 if (rv != net::ERR_IO_PENDING) { |
250 RecordEvent(start_time, OP_OPEN, key, *entry, rv); | 305 RecordEvent(start_time, OP_OPEN, key, *entry, rv); |
251 if (*entry) { | 306 if (*entry) { |
252 *entry = FindOrCreateEntryProxy(*entry); | 307 *entry = FindOrCreateEntryProxy(*entry); |
253 } | 308 } |
254 } | 309 } |
255 return rv; | 310 return rv; |
256 } | 311 } |
257 | 312 |
258 int TracingCacheBackend::CreateEntry(const std::string& key, Entry** entry, | 313 int TracingCacheBackend::CreateEntry(const std::string& key, |
| 314 Entry** entry, |
259 const CompletionCallback& callback) { | 315 const CompletionCallback& callback) { |
260 base::TimeTicks start_time = base::TimeTicks::Now(); | 316 base::TimeTicks start_time = base::TimeTicks::Now(); |
261 int rv = backend_->CreateEntry(key, entry, | 317 int rv = backend_->CreateEntry( |
262 BindCompletion(OP_CREATE, start_time, key, | 318 key, entry, BindCompletion(OP_CREATE, start_time, key, entry, callback)); |
263 entry, callback)); | |
264 if (rv != net::ERR_IO_PENDING) { | 319 if (rv != net::ERR_IO_PENDING) { |
265 RecordEvent(start_time, OP_CREATE, key, *entry, rv); | 320 RecordEvent(start_time, OP_CREATE, key, *entry, rv); |
266 if (*entry) { | 321 if (*entry) { |
267 *entry = FindOrCreateEntryProxy(*entry); | 322 *entry = FindOrCreateEntryProxy(*entry); |
268 } | 323 } |
269 } | 324 } |
270 return rv; | 325 return rv; |
271 } | 326 } |
272 | 327 |
273 int TracingCacheBackend::DoomEntry(const std::string& key, | 328 int TracingCacheBackend::DoomEntry(const std::string& key, |
274 const CompletionCallback& callback) { | 329 const CompletionCallback& callback) { |
275 base::TimeTicks start_time = base::TimeTicks::Now(); | 330 base::TimeTicks start_time = base::TimeTicks::Now(); |
276 int rv = backend_->DoomEntry(key, BindCompletion(OP_DOOM_ENTRY, | 331 int rv = backend_->DoomEntry( |
277 start_time, key, NULL, | 332 key, BindCompletion(OP_DOOM_ENTRY, start_time, key, NULL, callback)); |
278 callback)); | |
279 if (rv != net::ERR_IO_PENDING) { | 333 if (rv != net::ERR_IO_PENDING) { |
280 RecordEvent(start_time, OP_DOOM_ENTRY, key, NULL, rv); | 334 RecordEvent(start_time, OP_DOOM_ENTRY, key, NULL, rv); |
281 } | 335 } |
282 return rv; | 336 return rv; |
283 } | 337 } |
284 | 338 |
285 int TracingCacheBackend::DoomAllEntries(const CompletionCallback& callback) { | 339 int TracingCacheBackend::DoomAllEntries(const CompletionCallback& callback) { |
286 return backend_->DoomAllEntries(callback); | 340 return backend_->DoomAllEntries(callback); |
287 } | 341 } |
288 | 342 |
289 int TracingCacheBackend::DoomEntriesBetween(base::Time initial_time, | 343 int TracingCacheBackend::DoomEntriesBetween(base::Time initial_time, |
290 base::Time end_time, | 344 base::Time end_time, |
291 const CompletionCallback& cb) { | 345 const CompletionCallback& cb) { |
292 return backend_->DoomEntriesBetween(initial_time, end_time, cb); | 346 return backend_->DoomEntriesBetween(initial_time, end_time, cb); |
293 } | 347 } |
294 | 348 |
295 int TracingCacheBackend::DoomEntriesSince(base::Time initial_time, | 349 int TracingCacheBackend::DoomEntriesSince(base::Time initial_time, |
296 const CompletionCallback& callback) { | 350 const CompletionCallback& callback) { |
297 return backend_->DoomEntriesSince(initial_time, callback); | 351 return backend_->DoomEntriesSince(initial_time, callback); |
298 } | 352 } |
299 | 353 |
300 int TracingCacheBackend::OpenNextEntry(void** iter, Entry** next_entry, | 354 int TracingCacheBackend::OpenNextEntry(void** iter, |
| 355 Entry** next_entry, |
301 const CompletionCallback& callback) { | 356 const CompletionCallback& callback) { |
302 return backend_->OpenNextEntry(iter, next_entry, callback); | 357 return backend_->OpenNextEntry(iter, next_entry, callback); |
303 } | 358 } |
304 | 359 |
305 void TracingCacheBackend::EndEnumeration(void** iter) { | 360 void TracingCacheBackend::EndEnumeration(void** iter) { |
306 return backend_->EndEnumeration(iter); | 361 return backend_->EndEnumeration(iter); |
307 } | 362 } |
308 | 363 |
309 void TracingCacheBackend::GetStats(StatsItems* stats) { | 364 void TracingCacheBackend::GetStats(StatsItems* stats) { |
310 return backend_->GetStats(stats); | 365 return backend_->GetStats(stats); |
311 } | 366 } |
312 | 367 |
313 void TracingCacheBackend::OnExternalCacheHit(const std::string& key) { | 368 void TracingCacheBackend::OnExternalCacheHit(const std::string& key) { |
314 return backend_->OnExternalCacheHit(key); | 369 return backend_->OnExternalCacheHit(key); |
315 } | 370 } |
316 | 371 |
317 } // namespace disk_cache | 372 } // namespace disk_cache |
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