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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef WEBKIT_QUOTA_QUOTA_TEMPORARY_STORAGE_EVICTOR_H_ | |
| 6 #define WEBKIT_QUOTA_QUOTA_TEMPORARY_STORAGE_EVICTOR_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <string> | |
| 10 | |
| 11 #include "base/memory/weak_ptr.h" | |
| 12 #include "base/threading/non_thread_safe.h" | |
| 13 #include "base/timer.h" | |
| 14 #include "webkit/quota/quota_types.h" | |
| 15 #include "webkit/storage/webkit_storage_export.h" | |
| 16 | |
| 17 class GURL; | |
| 18 | |
| 19 namespace quota { | |
| 20 | |
| 21 class QuotaEvictionHandler; | |
| 22 struct UsageAndQuota; | |
| 23 | |
| 24 class WEBKIT_STORAGE_EXPORT_PRIVATE QuotaTemporaryStorageEvictor | |
| 25 : public base::NonThreadSafe { | |
| 26 public: | |
| 27 struct Statistics { | |
| 28 Statistics() | |
| 29 : num_errors_on_evicting_origin(0), | |
| 30 num_errors_on_getting_usage_and_quota(0), | |
| 31 num_evicted_origins(0), | |
| 32 num_eviction_rounds(0), | |
| 33 num_skipped_eviction_rounds(0) {} | |
| 34 int64 num_errors_on_evicting_origin; | |
| 35 int64 num_errors_on_getting_usage_and_quota; | |
| 36 int64 num_evicted_origins; | |
| 37 int64 num_eviction_rounds; | |
| 38 int64 num_skipped_eviction_rounds; | |
| 39 | |
| 40 void subtract_assign(const Statistics& rhs) { | |
| 41 num_errors_on_evicting_origin -= rhs.num_errors_on_evicting_origin; | |
| 42 num_errors_on_getting_usage_and_quota -= | |
| 43 rhs.num_errors_on_getting_usage_and_quota; | |
| 44 num_evicted_origins -= rhs.num_evicted_origins; | |
| 45 num_eviction_rounds -= rhs.num_eviction_rounds; | |
| 46 num_skipped_eviction_rounds -= rhs.num_skipped_eviction_rounds; | |
| 47 } | |
| 48 }; | |
| 49 | |
| 50 struct EvictionRoundStatistics { | |
| 51 EvictionRoundStatistics(); | |
| 52 | |
| 53 bool in_round; | |
| 54 bool is_initialized; | |
| 55 | |
| 56 base::Time start_time; | |
| 57 int64 usage_overage_at_round; | |
| 58 int64 diskspace_shortage_at_round; | |
| 59 | |
| 60 int64 usage_on_beginning_of_round; | |
| 61 int64 usage_on_end_of_round; | |
| 62 int64 num_evicted_origins_in_round; | |
| 63 }; | |
| 64 | |
| 65 QuotaTemporaryStorageEvictor( | |
| 66 QuotaEvictionHandler* quota_eviction_handler, | |
| 67 int64 interval_ms); | |
| 68 virtual ~QuotaTemporaryStorageEvictor(); | |
| 69 | |
| 70 void GetStatistics(std::map<std::string, int64>* statistics); | |
| 71 void ReportPerRoundHistogram(); | |
| 72 void ReportPerHourHistogram(); | |
| 73 void Start(); | |
| 74 | |
| 75 int64 min_available_disk_space_to_start_eviction() { | |
| 76 return min_available_disk_space_to_start_eviction_; | |
| 77 } | |
| 78 void reset_min_available_disk_space_to_start_eviction() { | |
| 79 min_available_disk_space_to_start_eviction_ = | |
| 80 kMinAvailableDiskSpaceToStartEvictionNotSpecified; | |
| 81 } | |
| 82 void set_min_available_disk_space_to_start_eviction(int64 value) { | |
| 83 min_available_disk_space_to_start_eviction_ = value; | |
| 84 } | |
| 85 | |
| 86 private: | |
| 87 friend class QuotaTemporaryStorageEvictorTest; | |
| 88 | |
| 89 void StartEvictionTimerWithDelay(int delay_ms); | |
| 90 void ConsiderEviction(); | |
| 91 void OnGotUsageAndQuotaForEviction( | |
| 92 QuotaStatusCode status, | |
| 93 const UsageAndQuota& quota_and_usage); | |
| 94 void OnGotLRUOrigin(const GURL& origin); | |
| 95 void OnEvictionComplete(QuotaStatusCode status); | |
| 96 | |
| 97 void OnEvictionRoundStarted(); | |
| 98 void OnEvictionRoundFinished(); | |
| 99 | |
| 100 // This is only used for tests. | |
| 101 void set_repeated_eviction(bool repeated_eviction) { | |
| 102 repeated_eviction_ = repeated_eviction; | |
| 103 } | |
| 104 | |
| 105 static const int kMinAvailableDiskSpaceToStartEvictionNotSpecified; | |
| 106 | |
| 107 int64 min_available_disk_space_to_start_eviction_; | |
| 108 | |
| 109 // Not owned; quota_eviction_handler owns us. | |
| 110 QuotaEvictionHandler* quota_eviction_handler_; | |
| 111 | |
| 112 Statistics statistics_; | |
| 113 Statistics previous_statistics_; | |
| 114 EvictionRoundStatistics round_statistics_; | |
| 115 base::Time time_of_end_of_last_nonskipped_round_; | |
| 116 base::Time time_of_end_of_last_round_; | |
| 117 | |
| 118 int64 interval_ms_; | |
| 119 bool repeated_eviction_; | |
| 120 | |
| 121 base::OneShotTimer<QuotaTemporaryStorageEvictor> eviction_timer_; | |
| 122 base::RepeatingTimer<QuotaTemporaryStorageEvictor> histogram_timer_; | |
| 123 base::WeakPtrFactory<QuotaTemporaryStorageEvictor> weak_factory_; | |
| 124 | |
| 125 DISALLOW_COPY_AND_ASSIGN(QuotaTemporaryStorageEvictor); | |
| 126 }; | |
| 127 | |
| 128 } // namespace quota | |
| 129 | |
| 130 #endif // WEBKIT_QUOTA_QUOTA_TEMPORARY_STORAGE_EVICTOR_H_ | |
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Chromium Code Reviews
Issue 16010007:
Move webkit/quota files to webkit/browser/quota or webkit/common/quota (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src