Program Listing for File lastvalue_aggregation.h
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <memory>
#include "opentelemetry/common/spin_lock_mutex.h"
#include "opentelemetry/sdk/metrics/aggregation/aggregation.h"
#include "opentelemetry/sdk/metrics/data/point_data.h"
#include "opentelemetry/version.h"
OPENTELEMETRY_BEGIN_NAMESPACE
namespace sdk
{
namespace metrics
{
class LongLastValueAggregation : public Aggregation
{
public:
LongLastValueAggregation();
LongLastValueAggregation(LastValuePointData &&);
LongLastValueAggregation(const LastValuePointData &);
void Aggregate(int64_t value, const PointAttributes &attributes = {}) noexcept override;
void Aggregate(double /* value */, const PointAttributes & /* attributes */) noexcept override {}
std::unique_ptr<Aggregation> Merge(const Aggregation &delta) const noexcept override;
std::unique_ptr<Aggregation> Diff(const Aggregation &next) const noexcept override;
PointType ToPoint() const noexcept override;
private:
mutable opentelemetry::common::SpinLockMutex lock_;
LastValuePointData point_data_;
};
class DoubleLastValueAggregation : public Aggregation
{
public:
DoubleLastValueAggregation();
DoubleLastValueAggregation(LastValuePointData &&);
DoubleLastValueAggregation(const LastValuePointData &);
void Aggregate(int64_t /* value */, const PointAttributes & /* attributes */) noexcept override {}
void Aggregate(double value, const PointAttributes &attributes = {}) noexcept override;
virtual std::unique_ptr<Aggregation> Merge(const Aggregation &delta) const noexcept override;
virtual std::unique_ptr<Aggregation> Diff(const Aggregation &next) const noexcept override;
PointType ToPoint() const noexcept override;
private:
mutable opentelemetry::common::SpinLockMutex lock_;
mutable LastValuePointData point_data_;
};
} // namespace metrics
} // namespace sdk
OPENTELEMETRY_END_NAMESPACE