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1 // Copyright (c) 2010 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 #include "chrome/common/chrome_counters.h" | |
6 | |
7 #include "base/metrics/stats_counters.h" | |
8 | |
9 namespace chrome { | |
10 | |
11 using base::StatsCounterTimer; | |
12 using base::StatsRate; | |
13 | |
14 // Note: We use the construct-on-first-use pattern here, because we don't | |
15 // want to fight with any static initializer ordering problems later. | |
16 // The downside of this is that the objects don't ever get cleaned up. | |
17 // But they are small and this is okay. | |
18 | |
19 // Note: Because these are constructed on-first-use, there is a slight | |
20 // race condition - two threads could initialize the same counter. | |
21 // If this happened, the stats table would still work just fine; | |
22 // we'd leak the extraneous StatsCounter object once, and that | |
23 // would be it. But these are small objects, so this is ok. | |
24 | |
25 StatsCounterTimer& Counters::chrome_main() { | |
26 static StatsCounterTimer* ctr = new StatsCounterTimer("Chrome.Init"); | |
27 return *ctr; | |
28 } | |
29 | |
30 StatsCounterTimer& Counters::renderer_main() { | |
31 static StatsCounterTimer* ctr = new StatsCounterTimer("Chrome.RendererInit"); | |
32 return *ctr; | |
33 } | |
34 | |
35 StatsCounterTimer& Counters::spellcheck_init() { | |
36 static StatsCounterTimer* ctr = new StatsCounterTimer("SpellCheck.Init"); | |
37 return *ctr; | |
38 } | |
39 | |
40 StatsRate& Counters::spellcheck_lookup() { | |
41 static StatsRate* ctr = new StatsRate("SpellCheck.Lookup"); | |
42 return *ctr; | |
43 } | |
44 | |
45 } // namespace chrome | |
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