mirror of https://gitee.com/bigwinds/arangodb
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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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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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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/// @author Achim Brandt
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////////////////////////////////////////////////////////////////////////////////
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#include "TimerTask.h"
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#include "Logger/Logger.h"
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#include "Scheduler/Scheduler.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb::basics;
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using namespace arangodb::rest;
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// -----------------------------------------------------------------------------
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// constructors and destructors
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// -----------------------------------------------------------------------------
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TimerTask::TimerTask(std::string const& id, double seconds)
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: Task(id, "TimerTask"), _watcher(nullptr), _seconds(seconds) {}
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TimerTask::~TimerTask() { cleanup(); }
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// -----------------------------------------------------------------------------
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// Task methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get a task specific description in VelocyPack format
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////////////////////////////////////////////////////////////////////////////////
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void TimerTask::getDescription(VPackBuilder& builder) const {
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builder.add("type", VPackValue("timed"));
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builder.add("offset", VPackValue(_seconds));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set up task
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////////////////////////////////////////////////////////////////////////////////
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bool TimerTask::setup(Scheduler* scheduler, EventLoop loop) {
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_scheduler = scheduler;
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_loop = loop;
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if (0.0 < _seconds) {
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_watcher = _scheduler->installTimerEvent(loop, this, _seconds);
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LOG(TRACE) << "armed TimerTask with " << _seconds << " seconds";
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} else {
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_watcher = nullptr;
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}
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return true;
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}
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void TimerTask::cleanup() {
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if (_scheduler != nullptr) {
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_scheduler->uninstallEvent(_watcher);
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}
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_watcher = nullptr;
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}
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bool TimerTask::handleEvent(EventToken token, EventType revents) {
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bool result = true;
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if (token == _watcher) {
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if (revents & EVENT_TIMER) {
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cleanup();
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result = handleTimeout();
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}
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}
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return result;
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}
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