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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMECAST_BASE_METRICS_CAST_HISTOGRAMS_H_
#define CHROMECAST_BASE_METRICS_CAST_HISTOGRAMS_H_
#include "base/metrics/histogram.h"
// STATIC_HISTOGRAM_POINTER_BLOCK only calls histogram_factory_get_invocation
// at the first time and uses the cached histogram_pointer for subsequent calls
// through base::subtle::Release_Store() and base::subtle::Acquire_Load().
// If the histogram name changes between subsequent calls, use this non-cached
// version that always calls histogram_factory_get_invocation.
#define STATIC_HISTOGRAM_POINTER_BLOCK_NO_CACHE( \
constant_histogram_name, histogram_add_method_invocation, \
histogram_factory_get_invocation) \
do { \
base::HistogramBase* histogram_pointer = histogram_factory_get_invocation; \
if (DCHECK_IS_ON()) \
histogram_pointer->CheckName(constant_histogram_name); \
histogram_pointer->histogram_add_method_invocation; \
} while (0)
#define UMA_HISTOGRAM_CUSTOM_TIMES_NO_CACHE(name, sample, min, max, \
bucket_count) \
STATIC_HISTOGRAM_POINTER_BLOCK_NO_CACHE( \
name, AddTimeMillisecondsGranularity(sample), \
base::Histogram::FactoryTimeGet( \
name, min, max, bucket_count, \
base::Histogram::kUmaTargetedHistogramFlag))
#define UMA_HISTOGRAM_CUSTOM_COUNTS_NO_CACHE(name, sample, min, max, \
bucket_count, count) \
STATIC_HISTOGRAM_POINTER_BLOCK_NO_CACHE(name, AddCount(sample, count), \
base::Histogram::FactoryGet(name, min, max, bucket_count, \
base::HistogramBase::kUmaTargetedHistogramFlag))
#define UMA_HISTOGRAM_ENUMERATION_NO_CACHE(name, sample, boundary_value) \
STATIC_HISTOGRAM_POINTER_BLOCK_NO_CACHE(name, Add(sample), \
base::LinearHistogram::FactoryGet(name, 1, boundary_value, \
boundary_value + 1, base::Histogram::kUmaTargetedHistogramFlag))
#endif // CHROMECAST_BASE_METRICS_CAST_HISTOGRAMS_H_