chromium/components/metrics/single_sample_metrics_factory_impl.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/metrics/single_sample_metrics_factory_impl.h"

#include <memory>

#include "base/threading/thread_checker.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/abseil-cpp/absl/base/attributes.h"

namespace metrics {

namespace {

class SingleSampleMetricImpl : public base::SingleSampleMetric { … };

ABSL_CONST_INIT thread_local mojo::Remote<mojom::SingleSampleMetricsProvider>*
    provider = …;

}  // namespace

SingleSampleMetricsFactoryImpl::SingleSampleMetricsFactoryImpl(
    CreateProviderCB create_provider_cb)
    : … { … }

SingleSampleMetricsFactoryImpl::~SingleSampleMetricsFactoryImpl() { … }

std::unique_ptr<base::SingleSampleMetric>
SingleSampleMetricsFactoryImpl::CreateCustomCountsMetric(
    const std::string& histogram_name,
    base::HistogramBase::Sample min,
    base::HistogramBase::Sample max,
    uint32_t bucket_count) { … }

void SingleSampleMetricsFactoryImpl::DestroyProviderForTesting() { … }

std::unique_ptr<base::SingleSampleMetric>
SingleSampleMetricsFactoryImpl::CreateMetric(const std::string& histogram_name,
                                             base::HistogramBase::Sample min,
                                             base::HistogramBase::Sample max,
                                             uint32_t bucket_count,
                                             int32_t flags) { … }

mojom::SingleSampleMetricsProvider*
SingleSampleMetricsFactoryImpl::GetProvider() { … }

}  // namespace metrics