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https://github.com/ceph/ceph
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36 lines
918 B
C++
36 lines
918 B
C++
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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// vim: ts=8 sw=2 smarttab
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#ifndef __CEPH_OSD_OBJECTVERSIONER_H
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#define __CEPH_OSD_OBJECTVERSIONER_H
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class ObjectVersioner {
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public:
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pobject_t oid;
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void get_versions(list<version_t>& ls);
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version_t head(); // newest
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version_t committed(); // last committed
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version_t tail(); // oldest
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/*
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* prepare a new version, starting wit "raw" transaction t.
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*/
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void prepare(ObjectStore::Transaction& t, version_t v);
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void rollback_to(version_t v);
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void commit_to(version_t v);
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};
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#endif
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