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Diffstat (limited to 'src/mongo/db/s/scoped_shard_version_critical_section.h')
-rw-r--r-- | src/mongo/db/s/scoped_shard_version_critical_section.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/mongo/db/s/scoped_shard_version_critical_section.h b/src/mongo/db/s/scoped_shard_version_critical_section.h new file mode 100644 index 00000000000..d5ec579313e --- /dev/null +++ b/src/mongo/db/s/scoped_shard_version_critical_section.h @@ -0,0 +1,57 @@ +/** + * Copyright (C) 2018-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 + * <http://www.mongodb.com/licensing/server-side-public-license>. + * + * 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/s/collection_sharding_runtime.h" + +namespace mongo { + +/** + * RAII-style class that enters the migration critical section and refresh the filtering + * metadata for the specified collection. The critical section is released when this object + * goes out of scope. + */ +class ScopedShardVersionCriticalSection { + ScopedShardVersionCriticalSection(const ScopedShardVersionCriticalSection&) = delete; + ScopedShardVersionCriticalSection& operator=(const ScopedShardVersionCriticalSection&) = delete; + +public: + ScopedShardVersionCriticalSection(OperationContext* opCtx, NamespaceString nss); + ~ScopedShardVersionCriticalSection(); + + void enterCommitPhase(); + +private: + const NamespaceString _nss; + OperationContext* _opCtx; +}; + +} // namespace mongo |