74 lines
2.1 KiB
C++
74 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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*/
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#pragma once
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#include <folly/experimental/TimerFD.h>
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#include <folly/io/async/TimeoutManager.h>
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namespace folly {
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// single timeout timerfd based TimeoutManager
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class STTimerFDTimeoutManager : public TimeoutManager, TimerFD {
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public:
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explicit STTimerFDTimeoutManager(folly::EventBase* eventBase);
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~STTimerFDTimeoutManager() override;
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/**
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* Attaches/detaches TimeoutManager to AsyncTimeout
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*/
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void attachTimeoutManager(AsyncTimeout* obj, InternalEnum internal) final;
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void detachTimeoutManager(AsyncTimeout* obj) final;
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/**
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* Schedules AsyncTimeout to fire after `timeout` milliseconds
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*/
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bool scheduleTimeout(AsyncTimeout* obj, timeout_type timeout) final;
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/**
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* Schedules AsyncTimeout to fire after `timeout` microseconds
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*/
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bool scheduleTimeoutHighRes(AsyncTimeout* obj, timeout_type_high_res timeout)
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final;
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/**
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* Cancels the AsyncTimeout, if scheduled
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*/
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void cancelTimeout(AsyncTimeout* obj) final;
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/**
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* This is used to mark the beginning of a new loop cycle by the
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* first handler fired within that cycle.
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*/
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void bumpHandlingTime() final;
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/**
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* Helper method to know whether we are running in the timeout manager
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* thread
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*/
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bool isInTimeoutManagerThread() final {
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return eventBase_->isInEventBaseThread();
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}
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// from TimerFD
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void onTimeout() noexcept final;
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private:
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static void setActive(AsyncTimeout* obj, bool active);
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folly::EventBase* eventBase_{nullptr};
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AsyncTimeout* obj_{nullptr};
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};
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} // namespace folly
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