package diskquota

import "github.com/containerd/accelerated-container-image/pkg/snapshot/diskquota"

Index ¶

• Constants
• func CheckRegularFile(file string) (bool, error)
• func ExecSync(bin string, args ...string) (std, serr string, err error)
• func SetDiskQuotaBytes(dir string, limit int64, quotaID uint32) error
• type PrjQuotaDriver
• func (quota *PrjQuotaDriver) CheckMountpoint(dir string) (string, bool, error)
• func (quota *PrjQuotaDriver) GetNextQuotaID() (quotaID uint32, err error)
• func (quota *PrjQuotaDriver) GetQuotaIDInFileAttr(dir string) uint32
• func (quota *PrjQuotaDriver) SetDiskQuota(dir string, size string, quotaID uint32) error
• func (quota *PrjQuotaDriver) SetFileAttr(dir string, quotaID uint32) error

Constants ¶

const (
	// QuotaMinID represents the minimum quota id.
	// The value is unit32(2^24).
	QuotaMinID = uint32(16777216)

	// QuotaMaxID represents the maximum quota id.
	QuotaMaxID = uint32(200000000)
)

Functions ¶

func CheckRegularFile ¶

func CheckRegularFile(file string) (bool, error)

CheckRegularFile is used to check the file is regular file or directory.

func ExecSync ¶

func ExecSync(bin string, args ...string) (std, serr string, err error)

func SetDiskQuotaBytes ¶

func SetDiskQuotaBytes(dir string, limit int64, quotaID uint32) error

SetDiskQuotaBytes set dir project quota to the quotaId

Types ¶

type PrjQuotaDriver ¶

type PrjQuotaDriver struct {

	// quotaIDs saves all of quota ids.
	// key: quota ID which means this ID is used in the global scope.
	// value: stuct{}
	QuotaIDs map[uint32]struct{}

	// lastID is used to mark last used quota ID.
	// quota ID is allocated increasingly by sequence one by one.
	LastID uint32
	// contains filtered or unexported fields
}

PrjQuotaDriver represents project quota driver.

func (*PrjQuotaDriver) CheckMountpoint ¶

func (quota *PrjQuotaDriver) CheckMountpoint(dir string) (string, bool, error)

func (*PrjQuotaDriver) GetNextQuotaID ¶

func (quota *PrjQuotaDriver) GetNextQuotaID() (quotaID uint32, err error)

GetNextQuotaID returns the next available quota id.

func (*PrjQuotaDriver) GetQuotaIDInFileAttr ¶

func (quota *PrjQuotaDriver) GetQuotaIDInFileAttr(dir string) uint32

GetQuotaIDInFileAttr gets attributes of the file which is in the inode. The returned result is quota ID. return 0 if failure happens, since quota ID must be positive. execution command: `lsattr -p $dir`

func (*PrjQuotaDriver) SetDiskQuota ¶

func (quota *PrjQuotaDriver) SetDiskQuota(dir string, size string, quotaID uint32) error

SetDiskQuota uses the following two parameters to set disk quota for a directory. * quota size: a byte size of requested quota. * quota ID: an ID represent quota attr which is used in the global scope.

func (*PrjQuotaDriver) SetFileAttr ¶

func (quota *PrjQuotaDriver) SetFileAttr(dir string, quotaID uint32) error

SetFileAttr set the file attr. ext4: chattr -p quotaid +P $DIR

Source Files ¶

prjquota.go quota_utils.go