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62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// reci.h
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/*
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* Copyright (C) 2010 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "diskloc.h"
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namespace mongo {
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/* Subclass this and implement your real storage interface.
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*/
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class RecStoreInterface {
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public:
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virtual ~RecStoreInterface() {}
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/* Get a pointer to the data at diskloc d. Pointer guaranteed to stay in
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scope through the current database operation's life.
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*/
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virtual char* get(DiskLoc d, unsigned len) = 0;
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/* indicate that the diskloc specified has been updated. note that as-is today, the modification may come AFTER this
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call -- we handle that currently -- until the dblock finishes.
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*/
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virtual void modified(DiskLoc d) = 0;
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/* insert specified data as a record */
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virtual DiskLoc insert(const char *ns, const void *obuf, int len, bool god) = 0;
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virtual void deleteRecord(const char *ns, DiskLoc d) { massert( 10379 , "not implemented RecStoreInterface::deleteRecord", false); }
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/* drop the collection */
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virtual void drop(const char *ns) = 0;
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/* rename collection */
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virtual void rename(const char *fromNs, const char *toNs) = 0;
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/* close datafiles associated with the db specified. */
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virtual void closeFiles(string dbname, string path) = 0;
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/* todo add:
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closeFiles(dbname)
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eraseFiles(dbname)
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*/
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};
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}
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