mirror of https://gitee.com/bigwinds/arangodb
66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB 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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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_REST_SERVER_SERVER_ID_FEATURE_H
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#define ARANGODB_REST_SERVER_SERVER_ID_FEATURE_H 1
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#include "ApplicationFeatures/ApplicationFeature.h"
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#include "ProgramOptions/ProgramOptions.h"
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#include "VocBase/voc-types.h"
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namespace arangodb {
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class ServerIdFeature final : public application_features::ApplicationFeature {
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public:
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explicit ServerIdFeature(application_features::ApplicationServer& server);
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void start() override final;
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static TRI_server_id_t getId() {
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TRI_ASSERT(SERVERID != 0);
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return SERVERID;
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}
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// fake the server id from the outside. used for testing only
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static void setId(TRI_server_id_t serverId) { SERVERID = serverId; }
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private:
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/// @brief generates a new server id
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void generateId();
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/// @brief reads server id from file
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int readId();
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/// @brief writes server id to file
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int writeId();
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/// @brief read / create the server id on startup
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int determineId(bool checkVersion);
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std::string _idFilename;
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static TRI_server_id_t SERVERID;
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};
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} // namespace arangodb
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#endif |