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/**
* Copyright (C) 2015 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.
*/
#pragma once
#include "mongo/base/disallow_copying.h"
#include "mongo/base/status.h"
#include "mongo/base/status_with.h"
#include "mongo/base/string_data.h"
#include "mongo/bson/bsonobj.h"
#include "mongo/db/catalog/index_create.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/namespace_string.h"
#include "mongo/db/repl/storage_interface.h"
#include "mongo/db/repl/task_runner.h"
#include "mongo/util/concurrency/old_thread_pool.h"
namespace mongo {
namespace repl {
class StorageInterfaceImpl : public StorageInterface {
MONGO_DISALLOW_COPYING(StorageInterfaceImpl);
public:
static const char kDefaultMinValidNamespace[];
static const char kInitialSyncFlagFieldName[];
static const char kBeginFieldName[];
StorageInterfaceImpl();
explicit StorageInterfaceImpl(const NamespaceString& minValidNss);
virtual ~StorageInterfaceImpl();
void startup() override;
void shutdown() override;
/**
* Returns namespace of collection containing the minvalid boundaries and initial sync flag.
*/
NamespaceString getMinValidNss() const;
bool getInitialSyncFlag(OperationContext* txn) const override;
void setInitialSyncFlag(OperationContext* txn) override;
void clearInitialSyncFlag(OperationContext* txn) override;
BatchBoundaries getMinValid(OperationContext* txn) const override;
void setMinValid(OperationContext* ctx,
const OpTime& endOpTime,
const DurableRequirement durReq) override;
void setMinValid(OperationContext* ctx, const BatchBoundaries& boundaries) override;
/**
* Allocates a new TaskRunner for use by the passed in collection.
*/
StatusWith<std::unique_ptr<CollectionBulkLoader>> createCollectionForBulkLoading(
const NamespaceString& nss,
const CollectionOptions& options,
const BSONObj idIndexSpec,
const std::vector<BSONObj>& secondaryIndexSpecs) override;
Status insertDocument(OperationContext* txn,
const NamespaceString& nss,
const BSONObj& doc) override;
Status insertDocuments(OperationContext* txn,
const NamespaceString& nss,
const std::vector<BSONObj>& docs) override;
Status dropReplicatedDatabases(OperationContext* txn) override;
Status createOplog(OperationContext* txn, const NamespaceString& nss) override;
Status createCollection(OperationContext* txn,
const NamespaceString& nss,
const CollectionOptions& options) override;
Status dropCollection(OperationContext* txn, const NamespaceString& nss) override;
StatusWith<BSONObj> findOne(OperationContext* txn,
const NamespaceString& nss,
boost::optional<StringData> indexName,
ScanDirection scanDirection) override;
StatusWith<BSONObj> deleteOne(OperationContext* txn,
const NamespaceString& nss,
boost::optional<StringData> indexName,
ScanDirection scanDirection) override;
Status isAdminDbValid(OperationContext* txn) override;
private:
// One thread per collection/TaskRunner
std::unique_ptr<OldThreadPool> _bulkLoaderThreads;
const NamespaceString _minValidNss;
};
} // namespace repl
} // namespace mongo
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