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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 HttpCache::Transaction, a private class of HttpCache so | 5 // This file declares HttpCache::Transaction, a private class of HttpCache so |
6 // it should only be included by http_cache.cc | 6 // it should only be included by http_cache.cc |
7 | 7 |
8 #ifndef NET_HTTP_HTTP_CACHE_TRANSACTION_H_ | 8 #ifndef NET_HTTP_HTTP_CACHE_TRANSACTION_H_ |
9 #define NET_HTTP_HTTP_CACHE_TRANSACTION_H_ | 9 #define NET_HTTP_HTTP_CACHE_TRANSACTION_H_ |
10 | 10 |
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165 const BeforeNetworkStartCallback& callback) override; | 165 const BeforeNetworkStartCallback& callback) override; |
166 void SetBeforeHeadersSentCallback( | 166 void SetBeforeHeadersSentCallback( |
167 const BeforeHeadersSentCallback& callback) override; | 167 const BeforeHeadersSentCallback& callback) override; |
168 int ResumeNetworkStart() override; | 168 int ResumeNetworkStart() override; |
169 void GetConnectionAttempts(ConnectionAttempts* out) const override; | 169 void GetConnectionAttempts(ConnectionAttempts* out) const override; |
170 | 170 |
171 // Invoked when parallel validation cannot proceed due to response failure | 171 // Invoked when parallel validation cannot proceed due to response failure |
172 // and this transaction needs to be restarted. | 172 // and this transaction needs to be restarted. |
173 void SetValidatingCannotProceed(); | 173 void SetValidatingCannotProceed(); |
174 | 174 |
175 // Invoked to removes the association between a transaction waiting to be | |
176 // added to an entry and the entry. | |
177 void ResetCachePendingState() { cache_pending_ = false; } | |
178 | |
175 // Returns the estimate of dynamically allocated memory in bytes. | 179 // Returns the estimate of dynamically allocated memory in bytes. |
176 size_t EstimateMemoryUsage() const; | 180 size_t EstimateMemoryUsage() const; |
177 | 181 |
178 private: | 182 private: |
179 static const size_t kNumValidationHeaders = 2; | 183 static const size_t kNumValidationHeaders = 2; |
180 // Helper struct to pair a header name with its value, for | 184 // Helper struct to pair a header name with its value, for |
181 // headers used to validate cache entries. | 185 // headers used to validate cache entries. |
182 struct ValidationHeaders { | 186 struct ValidationHeaders { |
183 ValidationHeaders() : initialized(false) {} | 187 ValidationHeaders() : initialized(false) {} |
184 | 188 |
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203 STATE_GET_BACKEND_COMPLETE, | 207 STATE_GET_BACKEND_COMPLETE, |
204 STATE_INIT_ENTRY, | 208 STATE_INIT_ENTRY, |
205 STATE_OPEN_ENTRY, | 209 STATE_OPEN_ENTRY, |
206 STATE_OPEN_ENTRY_COMPLETE, | 210 STATE_OPEN_ENTRY_COMPLETE, |
207 STATE_DOOM_ENTRY, | 211 STATE_DOOM_ENTRY, |
208 STATE_DOOM_ENTRY_COMPLETE, | 212 STATE_DOOM_ENTRY_COMPLETE, |
209 STATE_CREATE_ENTRY, | 213 STATE_CREATE_ENTRY, |
210 STATE_CREATE_ENTRY_COMPLETE, | 214 STATE_CREATE_ENTRY_COMPLETE, |
211 STATE_ADD_TO_ENTRY, | 215 STATE_ADD_TO_ENTRY, |
212 STATE_ADD_TO_ENTRY_COMPLETE, | 216 STATE_ADD_TO_ENTRY_COMPLETE, |
217 STATE_DONE_HEADERS_ADD_TO_ENTRY_COMPLETE, | |
213 STATE_CACHE_READ_RESPONSE, | 218 STATE_CACHE_READ_RESPONSE, |
214 STATE_CACHE_READ_RESPONSE_COMPLETE, | 219 STATE_CACHE_READ_RESPONSE_COMPLETE, |
215 STATE_TOGGLE_UNUSED_SINCE_PREFETCH, | 220 STATE_TOGGLE_UNUSED_SINCE_PREFETCH, |
216 STATE_TOGGLE_UNUSED_SINCE_PREFETCH_COMPLETE, | 221 STATE_TOGGLE_UNUSED_SINCE_PREFETCH_COMPLETE, |
217 STATE_CACHE_DISPATCH_VALIDATION, | 222 STATE_CACHE_DISPATCH_VALIDATION, |
218 STATE_CACHE_QUERY_DATA, | 223 STATE_CACHE_QUERY_DATA, |
219 STATE_CACHE_QUERY_DATA_COMPLETE, | 224 STATE_CACHE_QUERY_DATA_COMPLETE, |
220 STATE_START_PARTIAL_CACHE_VALIDATION, | 225 STATE_START_PARTIAL_CACHE_VALIDATION, |
221 STATE_COMPLETE_PARTIAL_CACHE_VALIDATION, | 226 STATE_COMPLETE_PARTIAL_CACHE_VALIDATION, |
222 STATE_SEND_REQUEST, | 227 STATE_SEND_REQUEST, |
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274 int DoGetBackendComplete(int result); | 279 int DoGetBackendComplete(int result); |
275 int DoInitEntry(); | 280 int DoInitEntry(); |
276 int DoOpenEntry(); | 281 int DoOpenEntry(); |
277 int DoOpenEntryComplete(int result); | 282 int DoOpenEntryComplete(int result); |
278 int DoDoomEntry(); | 283 int DoDoomEntry(); |
279 int DoDoomEntryComplete(int result); | 284 int DoDoomEntryComplete(int result); |
280 int DoCreateEntry(); | 285 int DoCreateEntry(); |
281 int DoCreateEntryComplete(int result); | 286 int DoCreateEntryComplete(int result); |
282 int DoAddToEntry(); | 287 int DoAddToEntry(); |
283 int DoAddToEntryComplete(int result); | 288 int DoAddToEntryComplete(int result); |
289 int DoDoneHeadersAddToEntryComplete(int result); | |
284 int DoCacheReadResponse(); | 290 int DoCacheReadResponse(); |
285 int DoCacheReadResponseComplete(int result); | 291 int DoCacheReadResponseComplete(int result); |
286 int DoCacheToggleUnusedSincePrefetch(); | 292 int DoCacheToggleUnusedSincePrefetch(); |
287 int DoCacheToggleUnusedSincePrefetchComplete(int result); | 293 int DoCacheToggleUnusedSincePrefetchComplete(int result); |
288 int DoCacheDispatchValidation(); | 294 int DoCacheDispatchValidation(); |
289 int DoCacheQueryData(); | 295 int DoCacheQueryData(); |
290 int DoCacheQueryDataComplete(int result); | 296 int DoCacheQueryDataComplete(int result); |
291 int DoStartPartialCacheValidation(); | 297 int DoStartPartialCacheValidation(); |
292 int DoCompletePartialCacheValidation(int result); | 298 int DoCompletePartialCacheValidation(int result); |
293 int DoSendRequest(); | 299 int DoSendRequest(); |
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485 std::string cache_key_; | 491 std::string cache_key_; |
486 Mode mode_; | 492 Mode mode_; |
487 bool reading_; // We are already reading. Never reverts to false once set. | 493 bool reading_; // We are already reading. Never reverts to false once set. |
488 bool invalid_range_; // We may bypass the cache for this request. | 494 bool invalid_range_; // We may bypass the cache for this request. |
489 bool truncated_; // We don't have all the response data. | 495 bool truncated_; // We don't have all the response data. |
490 bool is_sparse_; // The data is stored in sparse byte ranges. | 496 bool is_sparse_; // The data is stored in sparse byte ranges. |
491 bool range_requested_; // The user requested a byte range. | 497 bool range_requested_; // The user requested a byte range. |
492 bool handling_206_; // We must deal with this 206 response. | 498 bool handling_206_; // We must deal with this 206 response. |
493 bool cache_pending_; // We are waiting for the HttpCache. | 499 bool cache_pending_; // We are waiting for the HttpCache. |
494 bool done_reading_; // All available data was read. | 500 bool done_reading_; // All available data was read. |
501 // Headers have been received from the network and it's not a match with the | |
jkarlin
2017/06/09 17:04:50
newline above this comment
shivanisha
2017/06/12 18:01:23
done
| |
502 // existing entry. | |
503 bool done_headers_create_new_entry_; | |
jkarlin
2017/06/09 17:04:49
newline below the member
shivanisha
2017/06/12 18:01:23
done
| |
495 bool vary_mismatch_; // The request doesn't match the stored vary data. | 504 bool vary_mismatch_; // The request doesn't match the stored vary data. |
496 bool couldnt_conditionalize_request_; | 505 bool couldnt_conditionalize_request_; |
497 bool bypass_lock_for_test_; // A test is exercising the cache lock. | 506 bool bypass_lock_for_test_; // A test is exercising the cache lock. |
498 bool fail_conditionalization_for_test_; // Fail ConditionalizeRequest. | 507 bool fail_conditionalization_for_test_; // Fail ConditionalizeRequest. |
499 scoped_refptr<IOBuffer> read_buf_; | 508 scoped_refptr<IOBuffer> read_buf_; |
500 int io_buf_len_; | 509 int io_buf_len_; |
501 int read_offset_; | 510 int read_offset_; |
502 int effective_load_flags_; | 511 int effective_load_flags_; |
503 int write_len_; | 512 int write_len_; |
504 std::unique_ptr<PartialData> partial_; // We are dealing with range requests. | 513 std::unique_ptr<PartialData> partial_; // We are dealing with range requests. |
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549 RestartInfo restart_info_; | 558 RestartInfo restart_info_; |
550 | 559 |
551 base::WeakPtrFactory<Transaction> weak_factory_; | 560 base::WeakPtrFactory<Transaction> weak_factory_; |
552 | 561 |
553 DISALLOW_COPY_AND_ASSIGN(Transaction); | 562 DISALLOW_COPY_AND_ASSIGN(Transaction); |
554 }; | 563 }; |
555 | 564 |
556 } // namespace net | 565 } // namespace net |
557 | 566 |
558 #endif // NET_HTTP_HTTP_CACHE_TRANSACTION_H_ | 567 #endif // NET_HTTP_HTTP_CACHE_TRANSACTION_H_ |
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