net/disk_cache/eviction.h - Issue 6292011: Disk cache: Prevent obscure file corruption and deal...

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Issue 6292011: Disk cache: Prevent obscure file corruption and deal... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/

Patch Set: Created 9 years, 11 months ago

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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.	1 // Copyright (c) 2006-2008 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_EVICTION_H_	5 #ifndef NET_DISK_CACHE_EVICTION_H_

6 #define NET_DISK_CACHE_EVICTION_H_	6 #define NET_DISK_CACHE_EVICTION_H_

7 #pragma once	7 #pragma once

8	8

9 #include "base/basictypes.h"	9 #include "base/basictypes.h"

10 #include "base/task.h"	10 #include "base/task.h"

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33	33

34 // Updates the ranking information for an entry.	34 // Updates the ranking information for an entry.

35 void UpdateRank(EntryImpl* entry, bool modified);	35 void UpdateRank(EntryImpl* entry, bool modified);

36	36

37 // Notifications of interesting events for a given entry.	37 // Notifications of interesting events for a given entry.

38 void OnOpenEntry(EntryImpl* entry);	38 void OnOpenEntry(EntryImpl* entry);

39 void OnCreateEntry(EntryImpl* entry);	39 void OnCreateEntry(EntryImpl* entry);

40 void OnDoomEntry(EntryImpl* entry);	40 void OnDoomEntry(EntryImpl* entry);

41 void OnDestroyEntry(EntryImpl* entry);	41 void OnDestroyEntry(EntryImpl* entry);

42	42

	43 // Testing interface.

	44 void SetTestMode();

	45 void TrimDeletedList(bool empty);

	46

43 private:	47 private:

44 void PostDelayedTrim();	48 void PostDelayedTrim();

45 void DelayedTrim();	49 void DelayedTrim();

46 bool ShouldTrim();	50 bool ShouldTrim();

47 void ReportTrimTimes(EntryImpl* entry);	51 void ReportTrimTimes(EntryImpl* entry);

48 Rankings::List GetListForEntry(EntryImpl* entry);	52 Rankings::List GetListForEntry(EntryImpl* entry);

49 bool EvictEntry(CacheRankingsBlock* node, bool empty);	53 bool EvictEntry(CacheRankingsBlock* node, bool empty);

50	54

51 // We'll just keep for a while a separate set of methods that implement the	55 // We'll just keep for a while a separate set of methods that implement the

52 // new eviction algorithm. This code will replace the original methods when	56 // new eviction algorithm. This code will replace the original methods when

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68 BackendImpl* backend_;	72 BackendImpl* backend_;

69 Rankings* rankings_;	73 Rankings* rankings_;

70 IndexHeader* header_;	74 IndexHeader* header_;

71 int max_size_;	75 int max_size_;

72 int trim_delays_;	76 int trim_delays_;

73 bool new_eviction_;	77 bool new_eviction_;

74 bool first_trim_;	78 bool first_trim_;

75 bool trimming_;	79 bool trimming_;

76 bool delay_trim_;	80 bool delay_trim_;

77 bool init_;	81 bool init_;

	82 bool test_mode_;

78 bool in_experiment_;	83 bool in_experiment_;

79 ScopedRunnableMethodFactory<Eviction> factory_;	84 ScopedRunnableMethodFactory<Eviction> factory_;

80	85

81 DISALLOW_COPY_AND_ASSIGN(Eviction);	86 DISALLOW_COPY_AND_ASSIGN(Eviction);

82 };	87 };

83	88

84 } // namespace disk_cache	89 } // namespace disk_cache

85	90

86 #endif // NET_DISK_CACHE_EVICTION_H_	91 #endif // NET_DISK_CACHE_EVICTION_H_

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