mirror of https://gitee.com/bigwinds/arangodb
125 lines
3.3 KiB
C++
125 lines
3.3 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 Kaveh Vahedipour
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////////////////////////////////////////////////////////////////////////////////
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#ifdef _WIN32
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#include "Basics/win-utils.h"
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#endif
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#include "Basics/Logger.h"
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#include "Scheduler/PeriodicTask.h"
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#include "ApplicationAgency.h"
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using namespace std;
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using namespace arangodb::basics;
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using namespace arangodb::rest;
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ApplicationAgency::ApplicationAgency()
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: ApplicationFeature("agency"), _size(5), _min_election_timeout(.15),
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_max_election_timeout(.3) {
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}
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ApplicationAgency::~ApplicationAgency() {}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief sets the processor affinity
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////////////////////////////////////////////////////////////////////////////////
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void ApplicationAgency::setupOptions(
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std::map<std::string, ProgramOptionsDescription>& options) {
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options["Agency Options:help-agency"]("agency.size", &_size, "Agency size")
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("agency.id", &_agent_id, "This agent's id")
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("agency.election-timeout-min", &_min_election_timeout, "Minimum "
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"timeout before an agent calls for new election [s]")
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("agency.election-timeout-max", &_max_election_timeout, "Minimum "
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"timeout before an agent calls for new election [s]")
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("agency.endpoint", &_agency_endpoints, "Agency endpoints");
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}
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bool ApplicationAgency::prepare() {
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if (_disabled) {
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return true;
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}
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if (_min_election_timeout <= 0.) {
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LOG(FATAL) << "agency.election-timeout-min must not be negative!";
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} else if (_min_election_timeout < .15) {
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LOG(WARN) << "very short agency.election-timeout-min!";
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}
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if (_max_election_timeout <= _min_election_timeout) {
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LOG(FATAL) << "agency.election-timeout-max must not be shorter than or"
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<< "equal to agency.election-timeout-min.";
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}
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if (_max_election_timeout <= 2*_min_election_timeout) {
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LOG(WARN) << "agency.election-timeout-max should probably be chosen longer!";
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}
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_agent = std::unique_ptr<consensus::Agent>(new consensus::Agent(
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consensus::Config<double>(_agent_id, _min_election_timeout,
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_max_election_timeout, _agency_endpoints)));
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return true;
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}
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bool ApplicationAgency::start() {
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if (_disabled) {
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return true;
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}
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_agent->start();
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return true;
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}
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bool ApplicationAgency::open() { return true; }
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void ApplicationAgency::close() {
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if (_disabled) {
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return;
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}
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}
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void ApplicationAgency::stop() {
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if (_disabled) {
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return;
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}
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}
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arangodb::consensus::Agent* ApplicationAgency::agent () const {
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return _agent.get();
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}
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