libstorage-ng
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Snapshot.h
1/*
2 * Copyright (c) 2020 SUSE LLC
3 *
4 * All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of version 2 of the GNU General Public License as published
8 * by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, contact Novell, Inc.
17 *
18 * To contact Novell about this file by physical or electronic mail, you may
19 * find current contact information at www.novell.com.
20 */
21
22
23#ifndef STORAGE_SNAPSHOT_H
24#define STORAGE_SNAPSHOT_H
25
26
27#include "storage/Holders/Holder.h"
28
29
30namespace storage
31{
32
41 class Snapshot : public Holder
42 {
43 public:
44
53 static Snapshot* create(Devicegraph* devicegraph, const Device* source, const Device* target);
54
55 static Snapshot* load(Devicegraph* devicegraph, const xmlNode* node);
56
57 virtual Snapshot* clone() const override;
58
59 public:
60
61 class Impl;
62
63 Impl& get_impl();
64 const Impl& get_impl() const;
65
66 protected:
67
68 Snapshot(Impl* impl);
69
70 };
71
72
78 bool is_snapshot(const Holder* holder);
79
87
91 const Snapshot* to_snapshot(const Holder* holder);
92
93}
94
95#endif
An abstract base class for storage devices.
Definition: Device.h:82
The main container of the libstorage-ng.
Definition: Devicegraph.h:170
An abstract base class for storage holders.
Definition: Holder.h:57
Relationship between origin and snapshot.
Definition: Snapshot.h:42
static Snapshot * create(Devicegraph *devicegraph, const Device *source, const Device *target)
Create a holder of type Snapshot.
The storage namespace.
Definition: Actiongraph.h:40
bool is_snapshot(const Holder *holder)
Checks whether holder points to a Snapshot.
Snapshot * to_snapshot(Holder *holder)
Converts pointer to Holder to pointer to Snapshot.