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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_
#define NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_
#include "base/metrics/histogram.h"
#include "base/metrics/sparse_histogram.h"
#include "net/base/cache_type.h"
// This file contains macros used to report histograms. The main issue is that
// we want to have separate histograms for each type of cache (app, http, and
// media), while making it easy to report histograms and have all names
// precomputed.
#define SIMPLE_CACHE_THUNK(uma_type, args) UMA_HISTOGRAM_##uma_type args
#define SIMPLE_CACHE_UMA(uma_type, uma_name, cache_type, ...) \
do { \
switch (cache_type) { \
case net::DISK_CACHE: \
SIMPLE_CACHE_THUNK( \
uma_type, ("SimpleCache.Http." uma_name, ##__VA_ARGS__)); \
break; \
case net::APP_CACHE: \
SIMPLE_CACHE_THUNK( \
uma_type, ("SimpleCache.App." uma_name, ##__VA_ARGS__)); \
break; \
case net::MEDIA_CACHE: \
SIMPLE_CACHE_THUNK( \
uma_type, ("SimpleCache.Media." uma_name, ##__VA_ARGS__)); \
break; \
default: \
NOTREACHED(); \
break; \
} \
} while (0)
#endif // NET_DISK_CACHE_SIMPLE_SIMPLE_HISTOGRAM_MACROS_H_
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