initial code repo

[stor4nfv.git] / src / ceph / src / osd / ObjectVersioner.h

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