import quincy beta 17.1.0

[ceph.git] / ceph / src / jaegertracing / jaeger-client-cpp / src / jaegertracing / samplers / GuaranteedThroughputProbabilisticSampler.h

diff --git a/ceph/src/jaegertracing/jaeger-client-cpp/src/jaegertracing/samplers/GuaranteedThroughputProbabilisticSampler.h b/ceph/src/jaegertracing/jaeger-client-cpp/src/jaegertracing/samplers/GuaranteedThroughputProbabilisticSampler.h
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-/*
- * Copyright (c) 2017 Uber Technologies, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef JAEGERTRACING_SAMPLERS_GUARANTEEDTHROUGHPUTPROBABILISTICSAMPLER_H
-#define JAEGERTRACING_SAMPLERS_GUARANTEEDTHROUGHPUTPROBABILISTICSAMPLER_H
-
-#include "jaegertracing/Compilers.h"
-#include "jaegertracing/Constants.h"
-#include "jaegertracing/Tag.h"
-#include "jaegertracing/samplers/ProbabilisticSampler.h"
-#include "jaegertracing/samplers/RateLimitingSampler.h"
-#include "jaegertracing/samplers/Sampler.h"
-#include "jaegertracing/samplers/SamplingStatus.h"
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace jaegertracing {
-class TraceID;
-}  // namespace jaegertracing
-
-namespace jaegertracing {
-namespace samplers {
-
-class GuaranteedThroughputProbabilisticSampler : public Sampler
-{
-  public:
-    GuaranteedThroughputProbabilisticSampler(double lowerBound,
-                                             double samplingRate)
-        : _probabilisticSampler(samplingRate)
-        , _samplingRate(_probabilisticSampler.samplingRate())
-        , _lowerBoundSampler(new RateLimitingSampler(lowerBound))
-        , _lowerBound(lowerBound)
-        , _tags({ { kSamplerTypeTagKey, kSamplerTypeLowerBound },
-                  { kSamplerParamTagKey, _samplingRate } })
-    {
-    }
-
-    SamplingStatus isSampled(const TraceID& id,
-                             const std::string& operation) override
-    {
-        const auto samplingStatus =
-            _probabilisticSampler.isSampled(id, operation);
-        if (samplingStatus.isSampled()) {
-            _lowerBoundSampler->isSampled(id, operation);
-            return samplingStatus;
-        }
-        const auto sampled =
-            _lowerBoundSampler->isSampled(id, operation).isSampled();
-        return SamplingStatus(sampled, _tags);
-    }
-
-    void close() override
-    {
-        _probabilisticSampler.close();
-        _lowerBoundSampler->close();
-    }
-
-    void update(double lowerBound, double samplingRate);
-
-    double lowerBound() const { return _lowerBound; }
-
-    double samplingRate() const { return _samplingRate; }
-
-    Type type() const override
-    {
-        return Type::kGuaranteedThroughputProbabilisticSampler;
-    }
-
-  private:
-    ProbabilisticSampler _probabilisticSampler;
-    double _samplingRate;
-    std::unique_ptr<RateLimitingSampler> _lowerBoundSampler;
-    double _lowerBound;
-    std::vector<Tag> _tags;
-};
-
-}  // namespace samplers
-}  // namespace jaegertracing
-
-#endif  // JAEGERTRACING_SAMPLERS_GUARANTEEDTHROUGHPUTPROBABILISTICSAMPLER_H