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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // This file declares a HttpTransactionFactory implementation that can be | 5 // This file declares a HttpTransactionFactory implementation that can be |
6 // layered on top of another HttpTransactionFactory to add HTTP caching. The | 6 // layered on top of another HttpTransactionFactory to add HTTP caching. The |
7 // caching logic follows RFC 7234 (any exceptions are called out in the code). | 7 // caching logic follows RFC 7234 (any exceptions are called out in the code). |
8 // | 8 // |
9 // The HttpCache takes a disk_cache::Backend as a parameter, and uses that for | 9 // The HttpCache takes a disk_cache::Backend as a parameter, and uses that for |
10 // the cache storage. | 10 // the cache storage. |
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31 #include "net/base/load_states.h" | 31 #include "net/base/load_states.h" |
32 #include "net/base/net_export.h" | 32 #include "net/base/net_export.h" |
33 #include "net/base/request_priority.h" | 33 #include "net/base/request_priority.h" |
34 #include "net/http/http_network_session.h" | 34 #include "net/http/http_network_session.h" |
35 #include "net/http/http_transaction_factory.h" | 35 #include "net/http/http_transaction_factory.h" |
36 | 36 |
37 class GURL; | 37 class GURL; |
38 | 38 |
39 namespace base { | 39 namespace base { |
40 class SingleThreadTaskRunner; | 40 class SingleThreadTaskRunner; |
| 41 namespace trace_event { |
| 42 class ProcessMemoryDump; |
| 43 } |
41 } // namespace base | 44 } // namespace base |
42 | 45 |
43 namespace disk_cache { | 46 namespace disk_cache { |
44 class Backend; | 47 class Backend; |
45 class Entry; | 48 class Entry; |
46 } // namespace disk_cache | 49 } // namespace disk_cache |
47 | 50 |
48 namespace net { | 51 namespace net { |
49 | 52 |
50 class HttpNetworkSession; | 53 class HttpNetworkSession; |
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209 base::WeakPtr<HttpCache> GetWeakPtr() { return weak_factory_.GetWeakPtr(); } | 212 base::WeakPtr<HttpCache> GetWeakPtr() { return weak_factory_.GetWeakPtr(); } |
210 | 213 |
211 // Resets the network layer to allow for tests that probe | 214 // Resets the network layer to allow for tests that probe |
212 // network changes (e.g. host unreachable). The old network layer is | 215 // network changes (e.g. host unreachable). The old network layer is |
213 // returned to allow for filter patterns that only intercept | 216 // returned to allow for filter patterns that only intercept |
214 // some creation requests. Note ownership exchange. | 217 // some creation requests. Note ownership exchange. |
215 std::unique_ptr<HttpTransactionFactory> | 218 std::unique_ptr<HttpTransactionFactory> |
216 SetHttpNetworkTransactionFactoryForTesting( | 219 SetHttpNetworkTransactionFactoryForTesting( |
217 std::unique_ptr<HttpTransactionFactory> new_network_layer); | 220 std::unique_ptr<HttpTransactionFactory> new_network_layer); |
218 | 221 |
| 222 // Dumps memory allocation stats. |parent_dump_absolute_name| is the name |
| 223 // used by the parent MemoryAllocatorDump in the memory dump hierarchy. |
| 224 void DumpMemoryStats(base::trace_event::ProcessMemoryDump* pmd, |
| 225 const std::string& parent_absolute_name) const; |
| 226 |
219 private: | 227 private: |
220 // Types -------------------------------------------------------------------- | 228 // Types -------------------------------------------------------------------- |
221 | 229 |
222 // Disk cache entry data indices. | 230 // Disk cache entry data indices. |
223 enum { | 231 enum { |
224 kResponseInfoIndex = 0, | 232 kResponseInfoIndex = 0, |
225 kResponseContentIndex, | 233 kResponseContentIndex, |
226 kMetadataIndex, | 234 kMetadataIndex, |
227 | 235 |
228 // Must remain at the end of the enum. | 236 // Must remain at the end of the enum. |
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423 std::unique_ptr<base::Clock> clock_; | 431 std::unique_ptr<base::Clock> clock_; |
424 | 432 |
425 base::WeakPtrFactory<HttpCache> weak_factory_; | 433 base::WeakPtrFactory<HttpCache> weak_factory_; |
426 | 434 |
427 DISALLOW_COPY_AND_ASSIGN(HttpCache); | 435 DISALLOW_COPY_AND_ASSIGN(HttpCache); |
428 }; | 436 }; |
429 | 437 |
430 } // namespace net | 438 } // namespace net |
431 | 439 |
432 #endif // NET_HTTP_HTTP_CACHE_H_ | 440 #endif // NET_HTTP_HTTP_CACHE_H_ |
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