Program Listing for File meter_provider.h
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <memory>
#include <mutex>
#include <vector>
#include "opentelemetry/metrics/meter.h"
#include "opentelemetry/metrics/meter_provider.h"
#include "opentelemetry/nostd/shared_ptr.h"
#include "opentelemetry/sdk/metrics/meter.h"
#include "opentelemetry/sdk/metrics/meter_context.h"
#include "opentelemetry/sdk/resource/resource.h"
#include "opentelemetry/version.h"
OPENTELEMETRY_BEGIN_NAMESPACE
namespace sdk
{
namespace metrics
{
// forward declaration
class MetricCollector;
class MetricReader;
class MeterProvider final : public opentelemetry::metrics::MeterProvider
{
public:
MeterProvider(
std::unique_ptr<ViewRegistry> views = std::unique_ptr<ViewRegistry>(new ViewRegistry()),
sdk::resource::Resource resource = sdk::resource::Resource::Create({})) noexcept;
explicit MeterProvider(std::shared_ptr<sdk::metrics::MeterContext> context) noexcept;
nostd::shared_ptr<opentelemetry::metrics::Meter> GetMeter(
nostd::string_view name,
nostd::string_view version = "",
nostd::string_view schema_url = "") noexcept override;
const sdk::resource::Resource &GetResource() const noexcept;
void AddMetricReader(std::shared_ptr<MetricReader> reader) noexcept;
void AddView(std::unique_ptr<InstrumentSelector> instrument_selector,
std::unique_ptr<MeterSelector> meter_selector,
std::unique_ptr<View> view) noexcept;
bool Shutdown() noexcept;
bool ForceFlush(std::chrono::microseconds timeout = (std::chrono::microseconds::max)()) noexcept;
~MeterProvider() override;
private:
std::shared_ptr<sdk::metrics::MeterContext> context_;
std::mutex lock_;
};
} // namespace metrics
} // namespace sdk
OPENTELEMETRY_END_NAMESPACE