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// reci.h
/*
* Copyright (C) 2010 10gen 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/>.
*/
#pragma once
#include "diskloc.h"
namespace mongo {
/* Subclass this and implement your real storage interface.
*/
class RecStoreInterface {
public:
virtual ~RecStoreInterface() {}
/* Get a pointer to the data at diskloc d. Pointer guaranteed to stay in
scope through the current database operation's life.
*/
virtual char* get(DiskLoc d, unsigned len) = 0;
/* indicate that the diskloc specified has been updated. note that as-is today, the modification may come AFTER this
call -- we handle that currently -- until the dblock finishes.
*/
virtual void modified(DiskLoc d) = 0;
/* insert specified data as a record */
virtual DiskLoc insert(const char *ns, const void *obuf, int len, bool god) = 0;
virtual void deleteRecord(const char *ns, DiskLoc d) { massert( 10379 , "not implemented RecStoreInterface::deleteRecord", false); }
/* drop the collection */
virtual void drop(const char *ns) = 0;
/* rename collection */
virtual void rename(const char *fromNs, const char *toNs) = 0;
/* close datafiles associated with the db specified. */
virtual void closeFiles(string dbname, string path) = 0;
/* todo add:
closeFiles(dbname)
eraseFiles(dbname)
*/
};
}
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