net/disk_cache/stats.h - Issue 6780035: Use lock-free lazy initialization for static histogram references

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Side by Side Diff: net/disk_cache/stats.h

Issue 6780035: Use lock-free lazy initialization for static histogram references (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/

Patch Set: '' Created 9 years, 8 months ago

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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.	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	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_STATS_H_	5 #ifndef NET_DISK_CACHE_STATS_H_

6 #define NET_DISK_CACHE_STATS_H_	6 #define NET_DISK_CACHE_STATS_H_

7 #pragma once	7 #pragma once

8	8

9 #include <string>	9 #include <string>

10 #include <vector>	10 #include <vector>

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79 void Snapshot(StatsHistogram::StatsSamples* samples) const;	79 void Snapshot(StatsHistogram::StatsSamples* samples) const;

80	80

81 private:	81 private:

82 int GetStatsBucket(int32 size);	82 int GetStatsBucket(int32 size);

83 int GetRatio(Counters hit, Counters miss) const;	83 int GetRatio(Counters hit, Counters miss) const;

84	84

85 BackendImpl* backend_;	85 BackendImpl* backend_;

86 uint32 storage_addr_;	86 uint32 storage_addr_;

87 int data_sizes_[kDataSizesLength];	87 int data_sizes_[kDataSizesLength];

88 int64 counters_[MAX_COUNTER];	88 int64 counters_[MAX_COUNTER];

89 scoped_refptr<StatsHistogram> size_histogram_;	89 StatsHistogram* size_histogram_;

90	90

91 DISALLOW_COPY_AND_ASSIGN(Stats);	91 DISALLOW_COPY_AND_ASSIGN(Stats);

92 };	92 };

93	93

94 } // namespace disk_cache	94 } // namespace disk_cache

95	95

96 #endif // NET_DISK_CACHE_STATS_H_	96 #endif // NET_DISK_CACHE_STATS_H_

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