93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
|
// 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.h"
|
||
|
|
|
||
|
|
#include <memory>
|
||
|
|
#include <utility>
|
||
|
|
|
||
|
|
#include "base/metrics/single_sample_metrics.h"
|
||
|
|
#include "base/threading/thread_checker.h"
|
||
|
|
#include "components/metrics/single_sample_metrics_factory_impl.h"
|
||
|
|
#include "mojo/public/cpp/bindings/pending_receiver.h"
|
||
|
|
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
|
||
|
|
|
||
|
|
namespace metrics {
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
class MojoSingleSampleMetric : public mojom::SingleSampleMetric {
|
||
|
|
public:
|
||
|
|
MojoSingleSampleMetric(const std::string& histogram_name,
|
||
|
|
base::HistogramBase::Sample min,
|
||
|
|
base::HistogramBase::Sample max,
|
||
|
|
uint32_t bucket_count,
|
||
|
|
int32_t flags)
|
||
|
|
: metric_(histogram_name, min, max, bucket_count, flags) {}
|
||
|
|
|
||
|
|
MojoSingleSampleMetric(const MojoSingleSampleMetric&) = delete;
|
||
|
|
MojoSingleSampleMetric& operator=(const MojoSingleSampleMetric&) = delete;
|
||
|
|
|
||
|
|
~MojoSingleSampleMetric() override {}
|
||
|
|
|
||
|
|
private:
|
||
|
|
// mojom::SingleSampleMetric:
|
||
|
|
void SetSample(base::HistogramBase::Sample sample) override {
|
||
|
|
metric_.SetSample(sample);
|
||
|
|
}
|
||
|
|
|
||
|
|
base::DefaultSingleSampleMetric metric_;
|
||
|
|
};
|
||
|
|
|
||
|
|
class MojoSingleSampleMetricsProvider
|
||
|
|
: public mojom::SingleSampleMetricsProvider {
|
||
|
|
public:
|
||
|
|
MojoSingleSampleMetricsProvider() {}
|
||
|
|
|
||
|
|
MojoSingleSampleMetricsProvider(const MojoSingleSampleMetricsProvider&) =
|
||
|
|
delete;
|
||
|
|
MojoSingleSampleMetricsProvider& operator=(
|
||
|
|
const MojoSingleSampleMetricsProvider&) = delete;
|
||
|
|
|
||
|
|
~MojoSingleSampleMetricsProvider() override {
|
||
|
|
DCHECK(thread_checker_.CalledOnValidThread());
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
// mojom::SingleSampleMetricsProvider:
|
||
|
|
void AcquireSingleSampleMetric(
|
||
|
|
const std::string& histogram_name,
|
||
|
|
base::HistogramBase::Sample min,
|
||
|
|
base::HistogramBase::Sample max,
|
||
|
|
uint32_t bucket_count,
|
||
|
|
int32_t flags,
|
||
|
|
mojo::PendingReceiver<mojom::SingleSampleMetric> receiver) override {
|
||
|
|
DCHECK(thread_checker_.CalledOnValidThread());
|
||
|
|
mojo::MakeSelfOwnedReceiver(
|
||
|
|
std::make_unique<MojoSingleSampleMetric>(histogram_name, min, max,
|
||
|
|
bucket_count, flags),
|
||
|
|
std::move(receiver));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Providers must be created, used on, and destroyed on the same thread.
|
||
|
|
base::ThreadChecker thread_checker_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
// static
|
||
|
|
void InitializeSingleSampleMetricsFactory(CreateProviderCB create_provider_cb) {
|
||
|
|
base::SingleSampleMetricsFactory::SetFactory(
|
||
|
|
std::make_unique<SingleSampleMetricsFactoryImpl>(
|
||
|
|
std::move(create_provider_cb)));
|
||
|
|
}
|
||
|
|
|
||
|
|
// static
|
||
|
|
void CreateSingleSampleMetricsProvider(
|
||
|
|
mojo::PendingReceiver<mojom::SingleSampleMetricsProvider> receiver) {
|
||
|
|
mojo::MakeSelfOwnedReceiver(
|
||
|
|
std::make_unique<MojoSingleSampleMetricsProvider>(), std::move(receiver));
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace metrics
|