libstorage-ng
LvmVg.h
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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 
32 namespace 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);
53  };
54 
55 
59  class LvmVg : public Device
60  {
61  public:
62 
63  static LvmVg* create(Devicegraph* devicegraph, const std::string& vg_name);
64  static LvmVg* load(Devicegraph* devicegraph, const xmlNode* node);
65 
69  const std::string& get_vg_name() const;
70  void set_vg_name(const std::string& vg_name);
71 
72  const Region& get_region() const;
73 
74  unsigned long long get_size() const;
75 
76  std::string get_size_string() const;
77 
83  unsigned long long get_extent_size() const;
84 
96  void set_extent_size(unsigned long long extent_size);
97 
101  unsigned long long number_of_extents() const;
102 
107  unsigned long long number_of_used_extents() const;
108 
112  unsigned long long number_of_free_extents() const;
113 
118  bool is_overcommitted() const;
119 
125  LvmPv* add_lvm_pv(BlkDevice* blk_device);
126 
131  void remove_lvm_pv(BlkDevice* blk_device);
132 
139  unsigned long long max_size_for_lvm_lv(LvType lv_type) const;
140 
145  LvmLv* create_lvm_lv(const std::string& lv_name, LvType lv_type,
146  unsigned long long size);
147 
148  LvmLv* create_lvm_lv(const std::string& lv_name, unsigned long long size) ST_DEPRECATED;
149 
154  void delete_lvm_lv(LvmLv* lvm_lv);
155 
159  static std::vector<LvmVg*> get_all(Devicegraph* devicegraph);
160 
164  static std::vector<const LvmVg*> get_all(const Devicegraph* devicegraph);
165 
171  static LvmVg* find_by_vg_name(Devicegraph* devicegraph, const std::string& vg_name);
172 
176  static const LvmVg* find_by_vg_name(const Devicegraph* devicegraph, const std::string& vg_name);
177 
178  std::vector<LvmPv*> get_lvm_pvs();
179  std::vector<const LvmPv*> get_lvm_pvs() const;
180 
184  LvmLv* get_lvm_lv(const std::string& lv_name);
185 
186  std::vector<LvmLv*> get_lvm_lvs();
187  std::vector<const LvmLv*> get_lvm_lvs() const;
188 
192  static bool compare_by_vg_name(const LvmVg* lhs, const LvmVg* rhs);
193 
194  public:
195 
196  class Impl;
197 
198  Impl& get_impl();
199  const Impl& get_impl() const;
200 
201  virtual LvmVg* clone() const override;
202 
203  protected:
204 
205  LvmVg(Impl* impl);
206 
207  };
208 
209 
210  bool is_lvm_vg(const Device* device);
211 
218  LvmVg* to_lvm_vg(Device* device);
219 
223  const LvmVg* to_lvm_vg(const Device* device);
224 
225 }
226 
227 #endif
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.
A Logical Volume of the Logical Volume Manager (LVM).
Definition: LvmLv.h:57
unsigned long long number_of_used_extents() const
Calculates the number of used extents in the volume group.
A Volume Group of the Logical Volume Manager (LVM).
Definition: LvmVg.h:59
static bool compare_by_vg_name(const LvmVg *lhs, const LvmVg *rhs)
Compare (less than) two LvmVgs by vg-name.
Definition: LvmPv.h:36
A start/length pair with a block size.
Definition: Region.h:73
const std::string & get_vg_name() const
Get volume group name.
void set_extent_size(unsigned long long extent_size)
Set the extent size of the volume group.
The master container of the libstorage.
Definition: Devicegraph.h:153
An abstract Block Device.
Definition: BlkDevice.h:41
Definition: LvmVg.h:40
Definition: LvmVg.h:48
unsigned long long get_extent_size() const
Returns the extent size of the volume group.
LvmPv * add_lvm_pv(BlkDevice *blk_device)
Adds a block device as a physical volume to the volume group.
An abstract base class of storage devices, and a vertex in the Devicegraph.
Definition: Device.h:75
unsigned long long number_of_extents() const
Calculates the number of extents in the volume group.
Definition: Devicegraph.h:48
bool is_overcommitted() const
Check whether the volume group is overcommitted.
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.
void delete_lvm_lv(LvmLv *lvm_lv)
Delete a logical volume in the volume group.
void remove_lvm_pv(BlkDevice *blk_device)
Removes a block device from the volume group.
unsigned long long number_of_free_extents() const
Calculates the number of free extents in the volume group.
Base class for storage exceptions.
Definition: Exception.h:113
LvmLv * get_lvm_lv(const std::string &lv_name)
static LvmVg * find_by_vg_name(Devicegraph *devicegraph, const std::string &vg_name)
Find a volume group by vg-name.
The storage namespace.
Definition: Actiongraph.h:37
LvmVg * to_lvm_vg(Device *device)
Converts pointer to Device to pointer to LvmVg.
LvType
LVM logical volume types, see lvs(8).
Definition: LvmLv.h:40