Class to represent a qgroup of a btrfs filesystem. More...

#include <BtrfsQgroup.h>

Inheritance diagram for storage::BtrfsQgroup:

Collaboration diagram for storage::BtrfsQgroup:

Public Types
using	id_t = std::pair< unsigned int, unsigned long long >
	Type for a btrfs qgroup id. More...

Public Member Functions
Btrfs *	get_btrfs ()
	Get the btrfs filesystem this qgroup belongs to.

const Btrfs *	get_btrfs () const
	Get the btrfs filesystem this qgroup belongs to. More...

id_t	get_id () const
	Get the id of the qgroup.

unsigned long long	get_referenced () const
	Get the referenced size of the qgroup.

unsigned long long	get_exclusive () const
	Get the exclusive size of the qgroup.

bool	has_referenced_limit () const
	Return whether the qgroup has a limit for the referenced size.

unsigned long long	get_referenced_limit () const
	Return the limit for the referenced size of the qgroup. More...

void	set_referenced_limit (unsigned long long referenced_limit)
	Set the limit for the referenced size of the qgroup.

void	clear_referenced_limit ()
	Clear the limit for the referenced size of the qgroup.

bool	has_exclusive_limit () const
	Return whether the qgroup has a limit for the exclusive size.

unsigned long long	get_exclusive_limit () const
	Return the limit for the exclusive size of the qgroup. More...

void	set_exclusive_limit (unsigned long long exclusive_limit)
	Set the limit for the exclusive size of the qgroup.

void	clear_exclusive_limit ()
	Clear the limit for the exclusive size of the qgroup.

bool	is_assigned (const BtrfsQgroup *btrfs_qgroup) const
	Return whether the btrfs_qgroup is assigned to the qgroup.

void	assign (BtrfsQgroup *btrfs_qgroup)
	Assign btrfs_qgroup to the qgroup. More...

void	unassign (BtrfsQgroup *btrfs_qgroup)
	Unassign btrfs_qgroup from the qgroup. More...

std::vector< BtrfsQgroup * >	get_assigned_btrfs_qgroups ()
	Get all qgroups assigned to the qgroup.

std::vector< const BtrfsQgroup * >	get_assigned_btrfs_qgroups () const
	Get all qgroups assigned to the qgroup. More...

Impl &	get_impl ()

const Impl &	get_impl () const

virtual BtrfsQgroup *	clone () const override

Public Member Functions inherited from storage::Device
sid_t	get_sid () const
	Return the storage id (sid) of the device. More...

bool	operator== (const Device &rhs) const

bool	operator!= (const Device &rhs) const

Device *	copy_to_devicegraph (Devicegraph *devicegraph) const
	Copies the device to the devicegraph. More...

bool	exists_in_devicegraph (const Devicegraph *devicegraph) const
	Checks if the device exists in the devicegraph.

bool	exists_in_probed () const
	Checks if the device exists in the probed devicegraph.

bool	exists_in_staging () const
	Checks if the device exists in the staging devicegraph.

bool	exists_in_system () const
	Checks if the device exists in the system devicegraph.

std::string	get_displayname () const

ResizeInfo	detect_resize_info () const
	Detect the resize info of the device. More...

bool	has_children () const

size_t	num_children () const

bool	has_parents () const

size_t	num_parents () const

std::vector< Device * >	get_children ()

std::vector< const Device * >	get_children () const

std::vector< Device * >	get_children (View view)
	Get all children of the device.

std::vector< const Device * >	get_children (View view) const
	Get all children of the device. More...

std::vector< Device * >	get_parents ()

std::vector< const Device * >	get_parents () const

std::vector< Device * >	get_parents (View view)
	Get all parents of the device.

std::vector< const Device * >	get_parents (View view) const
	Get all parents of the device. More...

std::vector< Device * >	get_siblings (bool itself)

std::vector< const Device * >	get_siblings (bool itself) const

std::vector< Device * >	get_descendants (bool itself)

std::vector< const Device * >	get_descendants (bool itself) const

std::vector< Device * >	get_descendants (bool itself, View view)

std::vector< const Device * >	get_descendants (bool itself, View view) const

std::vector< Device * >	get_ancestors (bool itself)

std::vector< const Device * >	get_ancestors (bool itself) const

std::vector< Device * >	get_leaves (bool itself)

std::vector< const Device * >	get_leaves (bool itself) const

std::vector< Device * >	get_roots (bool itself)

std::vector< const Device * >	get_roots (bool itself) const

std::vector< Holder * >	get_in_holders ()

std::vector< const Holder * >	get_in_holders () const

std::vector< Holder * >	get_out_holders ()

std::vector< const Holder * >	get_out_holders () const

void	remove_descendants () ST_DEPRECATED

void	remove_descendants (View view)
	Remove all descendants of the device. More...

const std::map< std::string, std::string > &	get_userdata () const
	Return the userdata of the device.

void	set_userdata (const std::map< std::string, std::string > &userdata)
	Set the userdata of the device.

std::string	get_name_sort_key () const
	Get a sort-key based on the device name. More...

Devicegraph *	get_devicegraph ()
	Return the devicegraph the device belongs to.

const Devicegraph *	get_devicegraph () const
	Return the devicegraph the device belongs to. More...

Impl &	get_impl ()

const Impl &	get_impl () const

void	save (xmlNode *node) const ST_DEPRECATED

Static Public Member Functions
static BtrfsQgroup *	create (Devicegraph *devicegraph, const id_t &id)

static BtrfsQgroup *	load (Devicegraph devicegraph, const xmlNode node)

Static Public Member Functions inherited from storage::Device
static std::vector< Device * >	get_all (Devicegraph *devicegraph)
	Get all Devices.

static std::vector< const Device * >	get_all (const Devicegraph *devicegraph)
	Get all Devices. More...

static bool	compare_by_sid (const Device lhs, const Device rhs)
	Compare (less than) two Devices by sid. More...

static bool	compare_by_name (const Device lhs, const Device rhs)
	Compare (less than) two Devices by name. More...

Protected Member Functions
	BtrfsQgroup (Impl *impl)

Protected Member Functions inherited from storage::Device
	Device (Impl *impl)

void	create (Devicegraph *devicegraph)
	Create a device in the devicegraph. More...

void	load (Devicegraph *devicegraph)

Detailed Description

Class to represent a qgroup of a btrfs filesystem.

Not included in the classic view.

See also: Btrfs

Member Typedef Documentation

◆ id_t

using storage::BtrfsQgroup::id_t = std::pair<unsigned int, unsigned long long>

Type for a btrfs qgroup id.

The first value is the level, the second one the id.

btrfs will only use 16 bits of the level and 48 bits of the id.

Member Function Documentation

◆ assign()

void storage::BtrfsQgroup::assign ( BtrfsQgroup * btrfs_qgroup )

Assign btrfs_qgroup to the qgroup.

Exceptions

Exception

◆ create()

static BtrfsQgroup* storage::BtrfsQgroup::create	(	Devicegraph *	devicegraph,
		const id_t &	id
	)

static

See also: Device::create(Devicegraph*)

◆ get_assigned_btrfs_qgroups()

std::vector<const BtrfsQgroup*> storage::BtrfsQgroup::get_assigned_btrfs_qgroups ( ) const

Get all qgroups assigned to the qgroup.

◆ get_btrfs()

const Btrfs* storage::BtrfsQgroup::get_btrfs ( ) const

Get the btrfs filesystem this qgroup belongs to.

◆ get_exclusive_limit()

unsigned long long storage::BtrfsQgroup::get_exclusive_limit ( ) const

Return the limit for the exclusive size of the qgroup.

Exceptions

Exception

◆ get_referenced_limit()

unsigned long long storage::BtrfsQgroup::get_referenced_limit ( ) const

Return the limit for the referenced size of the qgroup.

Exceptions

Exception

◆ unassign()

void storage::BtrfsQgroup::unassign ( BtrfsQgroup * btrfs_qgroup )

Unassign btrfs_qgroup from the qgroup.

Exceptions

Exception

The documentation for this class was generated from the following file:

/home/abuild/rpmbuild/BUILD/libstorage-ng-4.4.94/storage/Filesystems/BtrfsQgroup.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Typedef Documentation

◆ id_t

Member Function Documentation

◆ assign()

◆ create()

◆ get_assigned_btrfs_qgroups()

◆ get_btrfs()

◆ get_exclusive_limit()

◆ get_referenced_limit()

◆ unassign()