77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
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// Copyright (c) Facebook, Inc. and its affiliates.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "rsocket/internal/WarmResumeManager.h"
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namespace folly {
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class IOBuf;
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}
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namespace rsocket {
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class RSocketStateMachine;
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class FrameTransport;
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// In-memory ResumeManager for cold-resumption (for prototyping and
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// testing purposes)
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class ColdResumeManager : public WarmResumeManager {
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public:
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// If inputFile is provided, the ColdResumeManager will read state from the
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// file, else it will start with a clean state.
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// The constructor will throw if there is an error reading from the inputFile.
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ColdResumeManager(
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std::shared_ptr<RSocketStats> stats,
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std::string inputFile = "");
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void trackReceivedFrame(
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size_t frameLength,
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FrameType frameType,
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StreamId streamId,
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size_t consumerAllowance) override;
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void trackSentFrame(
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const folly::IOBuf& serializedFrame,
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FrameType frameType,
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StreamId streamIdPtr,
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size_t consumerAllowance) override;
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void onStreamOpen(
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StreamId,
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RequestOriginator,
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std::string streamToken,
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StreamType) override;
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void onStreamClosed(StreamId streamId) override;
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const StreamResumeInfos& getStreamResumeInfos() const override {
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return streamResumeInfos_;
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}
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StreamId getLargestUsedStreamId() const override {
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return largestUsedStreamId_;
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}
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// Persist resumption state to outputFile. Will throw if write fails.
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void persistState(std::string outputFile);
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private:
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StreamResumeInfos streamResumeInfos_;
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// Largest used StreamId so far.
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StreamId largestUsedStreamId_{0};
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};
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} // namespace rsocket
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