From 5f06484704079c88b81d7ec6ba9a223c651b1a2e Mon Sep 17 00:00:00 2001 From: Tommaso Tocci Date: Mon, 15 Feb 2021 13:17:06 +0100 Subject: SERVER-53905 Implement PrimaryOnlyService for DDL coordinators --- src/mongo/db/s/sharding_ddl_coordinator_service.h | 65 +++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 src/mongo/db/s/sharding_ddl_coordinator_service.h (limited to 'src/mongo/db/s/sharding_ddl_coordinator_service.h') diff --git a/src/mongo/db/s/sharding_ddl_coordinator_service.h b/src/mongo/db/s/sharding_ddl_coordinator_service.h new file mode 100644 index 00000000000..c514ca659c9 --- /dev/null +++ b/src/mongo/db/s/sharding_ddl_coordinator_service.h @@ -0,0 +1,65 @@ +/** + * Copyright (C) 2021-present MongoDB, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the Server Side Public License, version 1, + * as published by MongoDB, Inc. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * Server Side Public License for more details. + * + * You should have received a copy of the Server Side Public License + * along with this program. If not, see + * . + * + * As a special exception, the copyright holders give permission to link the + * code of portions of this program with the OpenSSL library under certain + * conditions as described in each individual source file and distribute + * linked combinations including the program with the OpenSSL library. You + * must comply with the Server Side Public License in all respects for + * all of the code used other than as permitted herein. If you modify file(s) + * with this exception, you may extend this exception to your version of the + * file(s), but you are not obligated to do so. If you do not wish to do so, + * delete this exception statement from your version. If you delete this + * exception statement from all source files in the program, then also delete + * it in the license file. + */ + +#pragma once + +#include "mongo/db/namespace_string.h" +#include "mongo/db/repl/primary_only_service.h" + +namespace mongo { + +class ShardingDDLCoordinatorService final : public repl::PrimaryOnlyService { +public: + static constexpr StringData kServiceName = "ShardingDDLCoordinator"_sd; + + explicit ShardingDDLCoordinatorService(ServiceContext* serviceContext) + : PrimaryOnlyService(serviceContext) {} + + ~ShardingDDLCoordinatorService() = default; + + static ShardingDDLCoordinatorService* getService(OperationContext* opCtx); + + StringData getServiceName() const override { + return kServiceName; + } + + NamespaceString getStateDocumentsNS() const override { + return NamespaceString::kShardingDDLCoordinatorsNamespace; + } + + ThreadPool::Limits getThreadPoolLimits() const override { + return ThreadPool::Limits(); + } + + std::shared_ptr constructInstance(BSONObj initialState) const override; + + std::shared_ptr getOrCreateInstance(OperationContext* opCtx, BSONObj initialState); +}; + +} // namespace mongo -- cgit v1.2.1