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arangodb/arangod/Scheduler/SchedulerFeature.h

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2.8 KiB
C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Dr. Frank Celler
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGOD_SCHEDULER_SCHEDULER_FEATURE_H
#define ARANGOD_SCHEDULER_SCHEDULER_FEATURE_H 1
#include "ApplicationFeatures/ApplicationFeature.h"
#include "GeneralServer/Socket.h" // This is required for asio_ns::signal_set
#include "Scheduler/Scheduler.h"
#include "Scheduler/SupervisedScheduler.h"
namespace arangodb {
class SchedulerFeature final : public application_features::ApplicationFeature {
public:
static SupervisedScheduler* SCHEDULER;
explicit SchedulerFeature(application_features::ApplicationServer& server);
~SchedulerFeature();
void collectOptions(std::shared_ptr<options::ProgramOptions>) override final;
void validateOptions(std::shared_ptr<options::ProgramOptions>) override final;
void prepare() override final;
void start() override final;
void stop() override final;
void unprepare() override final;
private:
uint64_t _nrMinimalThreads = 2;
uint64_t _nrMaximalThreads = 0;
uint64_t _queueSize = 4096;
uint64_t _fifo1Size = 4096;
uint64_t _fifo2Size = 4096;
std::unique_ptr<Scheduler> _scheduler;
// -------------------------------------------------------------------------
// UNRELATED SECTION STARS HERE: Singals and other things creeped into Sched
// -------------------------------------------------------------------------
public:
/*size_t concurrency() const { return static_cast<size_t>(_nrMaximalThreads); }*/
void buildControlCHandler();
void buildHangupHandler();
private:
void initV8Stuff();
void deinitV8Stuff();
void signalStuffInit();
void signalStuffDeinit();
std::function<void(const asio_ns::error_code&, int)> _signalHandler;
std::function<void(const asio_ns::error_code&, int)> _exitHandler;
std::shared_ptr<asio_ns::signal_set> _exitSignals;
std::function<void(const asio_ns::error_code&, int)> _hangupHandler;
std::shared_ptr<asio_ns::signal_set> _hangupSignals;
};
} // namespace arangodb
#endif