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// in_memory_init.cpp
/**
* Copyright (C) 2014 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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.
*/
#include "mongo/base/init.h"
#include "mongo/db/service_context.h"
#include "mongo/db/storage/in_memory/in_memory_engine.h"
#include "mongo/db/storage/kv/kv_storage_engine.h"
#include "mongo/db/storage_options.h"
namespace mongo {
namespace {
class InMemoryFactory : public StorageEngine::Factory {
public:
virtual ~InMemoryFactory() { }
virtual StorageEngine* create(const StorageGlobalParams& params,
const StorageEngineLockFile& lockFile) const {
KVStorageEngineOptions options;
options.directoryPerDB = params.directoryperdb;
options.forRepair = params.repair;
return new KVStorageEngine(new InMemoryEngine(), options);
}
virtual StringData getCanonicalName() const {
return "inMemoryExperiment";
}
virtual Status validateMetadata(const StorageEngineMetadata& metadata,
const StorageGlobalParams& params) const {
return Status::OK();
}
virtual BSONObj createMetadataOptions(const StorageGlobalParams& params) const {
return BSONObj();
}
};
} // namespace
MONGO_INITIALIZER_WITH_PREREQUISITES(InMemoryEngineInit,
("SetGlobalEnvironment"))
(InitializerContext* context) {
getGlobalServiceContext()->registerStorageEngine("inMemoryExperiment", new InMemoryFactory());
return Status::OK();
}
} // namespace mongo
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