libstorage-ng
LvmVg.h
1/*
2 * Copyright (c) [2016-2021] 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_LVM_VG_H
24#define STORAGE_LVM_VG_H
25
26
27#include "storage/Devices/Device.h"
28#include "storage/Devices/LvmLv.h"
29#include "storage/Devicegraph.h"
30
31
32namespace storage
33{
34 class Region;
35 class BlkDevice;
36 class LvmPv;
37 class LvmLv;
38
39
41 {
42 public:
43
44 LvmVgNotFoundByVgName(const std::string& vg_name);
45 };
46
47
49 {
50 public:
51
52 InvalidExtentSize(unsigned long long extent_size) ST_DEPRECATED;
53 InvalidExtentSize(const std::string& msg);
54 };
55
56
60 class LvmVg : public Device
61 {
62 public:
63
69 static LvmVg* create(Devicegraph* devicegraph, const std::string& vg_name);
70
71 static LvmVg* load(Devicegraph* devicegraph, const xmlNode* node);
72
76 const std::string& get_vg_name() const;
77
84 void set_vg_name(const std::string& vg_name);
85
90 static bool is_valid_vg_name(const std::string& vg_name);
91
96 const Region& get_region() const;
97
101 unsigned long long get_size() const;
102
109 std::string get_size_string() const;
110
116 unsigned long long get_extent_size() const;
117
129 void set_extent_size(unsigned long long extent_size);
130
134 unsigned long long number_of_extents() const;
135
140 unsigned long long number_of_used_extents() const;
141
145 unsigned long long number_of_free_extents() const;
146
151 bool is_overcommitted() const;
152
159
164 void remove_lvm_pv(BlkDevice* blk_device);
165
172 unsigned long long max_size_for_lvm_lv(LvType lv_type) const;
173
180 LvmLv* create_lvm_lv(const std::string& lv_name, LvType lv_type,
181 unsigned long long size);
182
183 LvmLv* create_lvm_lv(const std::string& lv_name, unsigned long long size) ST_DEPRECATED;
184
189 void delete_lvm_lv(LvmLv* lvm_lv);
190
194 static std::vector<LvmVg*> get_all(Devicegraph* devicegraph);
195
199 static std::vector<const LvmVg*> get_all(const Devicegraph* devicegraph);
200
206 static LvmVg* find_by_vg_name(Devicegraph* devicegraph, const std::string& vg_name);
207
211 static const LvmVg* find_by_vg_name(const Devicegraph* devicegraph, const std::string& vg_name);
212
216 std::vector<LvmPv*> get_lvm_pvs();
217
221 std::vector<const LvmPv*> get_lvm_pvs() const;
222
226 LvmLv* get_lvm_lv(const std::string& lv_name);
227
234 std::vector<LvmLv*> get_lvm_lvs();
235
239 std::vector<const LvmLv*> get_lvm_lvs() const;
240
248 static bool compare_by_vg_name(const LvmVg* lhs, const LvmVg* rhs);
249
250 public:
251
252 class Impl;
253
254 Impl& get_impl();
255 const Impl& get_impl() const;
256
257 virtual LvmVg* clone() const override;
258
259 protected:
260
261 LvmVg(Impl* impl);
262
263 };
264
265
271 bool is_lvm_vg(const Device* device);
272
280
284 const LvmVg* to_lvm_vg(const Device* device);
285
286}
287
288#endif
An abstract Block Device.
Definition: BlkDevice.h:49
Definition: Devicegraph.h:50
An abstract base class for storage devices.
Definition: Device.h:82
The main container of the libstorage-ng.
Definition: Devicegraph.h:170
Base class for storage exceptions.
Definition: Exception.h:114
const std::string & msg() const
Return the message string provided to the constructor.
Definition: Exception.h:150
Definition: LvmVg.h:49
A Logical Volume of the Logical Volume Manager (LVM).
Definition: LvmLv.h:147
Definition: LvmPv.h:37
Definition: LvmVg.h:41
A Volume Group of the Logical Volume Manager (LVM).
Definition: LvmVg.h:61
unsigned long long number_of_extents() const
Returns the number of extents in the volume group.
static const LvmVg * find_by_vg_name(const Devicegraph *devicegraph, const std::string &vg_name)
Find a volume group by vg-name.
std::string get_size_string() const
Returns the size of the volume group as a localised string.
void remove_lvm_pv(BlkDevice *blk_device)
Removes a block device from the volume group.
const std::string & get_vg_name() const
Get volume group name.
static std::vector< LvmVg * > get_all(Devicegraph *devicegraph)
Get all LvmVgs.
LvmLv * create_lvm_lv(const std::string &lv_name, LvType lv_type, unsigned long long size)
Create a logical volume with name lv_name and type lv_type in the volume group.
std::vector< const LvmPv * > get_lvm_pvs() const
Get all physical volumes of the volume group.
bool is_overcommitted() const
Check whether the volume group is overcommitted.
unsigned long long get_extent_size() const
Returns the extent size of the volume group.
std::vector< LvmPv * > get_lvm_pvs()
Get all physical volumes of the volume group.
static bool compare_by_vg_name(const LvmVg *lhs, const LvmVg *rhs)
Compare (less than) two LvmVgs by vg-name.
unsigned long long number_of_used_extents() const
Calculates the number of used extents in the volume group.
std::vector< const LvmLv * > get_lvm_lvs() const
Get all logical volumes of the volume group that are direct children of the volume group.
LvmPv * add_lvm_pv(BlkDevice *blk_device)
Adds a block device as a physical volume to the volume group.
void set_extent_size(unsigned long long extent_size)
Set the extent size of the volume group.
static bool is_valid_vg_name(const std::string &vg_name)
Check whether a volume group name is valid.
static std::vector< const LvmVg * > get_all(const Devicegraph *devicegraph)
Get all LvmVgs.
std::vector< LvmLv * > get_lvm_lvs()
Get all logical volumes of the volume group that are direct children of the volume group.
unsigned long long max_size_for_lvm_lv(LvType lv_type) const
Return the max size in bytes for a new logical volume of type lv_type.
void delete_lvm_lv(LvmLv *lvm_lv)
Delete a logical volume in the volume group.
static LvmVg * find_by_vg_name(Devicegraph *devicegraph, const std::string &vg_name)
Find a volume group by vg-name.
unsigned long long get_size() const
Returns the size of the volume group in bytes.
void set_vg_name(const std::string &vg_name)
Set the volume group name.
static LvmVg * create(Devicegraph *devicegraph, const std::string &vg_name)
Create a device of type LvmVg.
LvmLv * get_lvm_lv(const std::string &lv_name)
const Region & get_region() const
Get the region of the volume group.
unsigned long long number_of_free_extents() const
Calculates the number of free extents in the volume group.
A start/length pair with a block size.
Definition: Region.h:85
The storage namespace.
Definition: Actiongraph.h:39
bool is_lvm_vg(const Device *device)
Checks whether device points to a LvmVg.
LvType
LVM logical volume types, see lvs(8).
Definition: LvmLv.h:41
LvmVg * to_lvm_vg(Device *device)
Converts pointer to Device to pointer to LvmVg.