mirror of https://gitee.com/bigwinds/arangodb
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2018 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 Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_CLUSTER_DB_SERVER_AGENCY_SYNC_H
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#define ARANGOD_CLUSTER_DB_SERVER_AGENCY_SYNC_H 1
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#include "Basics/Common.h"
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#include "Basics/Result.h"
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#include "Basics/VelocyPackHelper.h"
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namespace arangodb {
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namespace application_features {
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class ApplicationServer;
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}
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class HeartbeatThread;
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struct DBServerAgencySyncResult {
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bool success;
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std::string errorMessage;
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uint64_t planVersion;
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uint64_t currentVersion;
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DBServerAgencySyncResult()
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: success(false), planVersion(0), currentVersion(0) {}
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DBServerAgencySyncResult(bool s, uint64_t p, uint64_t c)
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: success(s), planVersion(p), currentVersion(c) {}
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DBServerAgencySyncResult(bool s, std::string const& e, uint64_t p, uint64_t c)
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: success(s), errorMessage(e), planVersion(p), currentVersion(c) {}
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};
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class DBServerAgencySync {
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DBServerAgencySync(DBServerAgencySync const&) = delete;
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DBServerAgencySync& operator=(DBServerAgencySync const&) = delete;
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public:
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explicit DBServerAgencySync(application_features::ApplicationServer& server,
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HeartbeatThread* heartbeat);
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public:
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void work();
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/**
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* @brief Get copy of current local state
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* @param collections Builder to fill to
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*/
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arangodb::Result getLocalCollections(VPackBuilder& collections);
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private:
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DBServerAgencySyncResult execute();
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private:
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application_features::ApplicationServer& _server;
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HeartbeatThread* _heartbeat;
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};
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} // namespace arangodb
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#endif
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