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1 // Copyright 2013 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 NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_ | |
6 #define NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_ | |
7 | |
8 #include "base/metrics/histogram.h" | |
9 #include "base/metrics/sparse_histogram.h" | |
10 #include "net/base/cache_type.h" | |
11 | |
12 // This file contains macros used to report histograms. The main issue is that | |
13 // we want to have separate histograms for each type of cache (app, http, and | |
14 // media), while making it easy to report histograms and have all names | |
15 // precomputed. | |
16 | |
17 #define SIMPLE_CACHE_THUNK(uma_type, args) UMA_HISTOGRAM_##uma_type args | |
18 | |
19 // TODO(pasko): add histograms for shader cache as soon as it becomes possible | |
20 // for a user to get shader cache with the |SimpleBackendImpl| without altering | |
21 // any flags. | |
22 #define SIMPLE_CACHE_UMA(uma_type, uma_name, cache_type, ...) \ | |
23 do { \ | |
24 switch (cache_type) { \ | |
25 case net::DISK_CACHE: \ | |
26 SIMPLE_CACHE_THUNK( \ | |
27 uma_type, ("SimpleCache.Http." uma_name, ##__VA_ARGS__)); \ | |
28 break; \ | |
29 case net::APP_CACHE: \ | |
30 SIMPLE_CACHE_THUNK( \ | |
31 uma_type, ("SimpleCache.App." uma_name, ##__VA_ARGS__)); \ | |
32 break; \ | |
33 case net::MEDIA_CACHE: \ | |
34 SIMPLE_CACHE_THUNK( \ | |
35 uma_type, ("SimpleCache.Media." uma_name, ##__VA_ARGS__)); \ | |
36 break; \ | |
37 case net::SHADER_CACHE: \ | |
38 break; \ | |
39 default: \ | |
40 NOTREACHED(); \ | |
41 break; \ | |
42 } \ | |
43 } while (0) | |
44 | |
45 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_ | |
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