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 #define SIMPLE_CACHE_UMA(uma_type, uma_name, cache_type, ...) \ 20 do { \ 21 switch (cache_type) { \ 22 case net::DISK_CACHE: \ 23 SIMPLE_CACHE_THUNK( \ 24 uma_type, ("SimpleCache.Http." uma_name, ##__VA_ARGS__)); \ 25 break; \ 26 case net::APP_CACHE: \ 27 SIMPLE_CACHE_THUNK( \ 28 uma_type, ("SimpleCache.App." uma_name, ##__VA_ARGS__)); \ 29 break; \ 30 case net::MEDIA_CACHE: \ 31 SIMPLE_CACHE_THUNK( \ 32 uma_type, ("SimpleCache.Media." uma_name, ##__VA_ARGS__)); \ 33 break; \ 34 default: \ 35 NOTREACHED(); \ 36 break; \ 37 } \ 38 } while (0) 39 40 #endif // NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_ 41