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_ 46
