fstree

Documentation

Index

• Constants
• type FSTree
  • func New(opts ...Option) *FSTree
  • func (*FSTree) Close() error
  • func (t *FSTree) Delete(prm common.DeletePrm) (common.DeleteRes, error)
  • func (t *FSTree) Exists(prm common.ExistsPrm) (common.ExistsRes, error)
  • func (t *FSTree) Get(prm common.GetPrm) (common.GetRes, error)
  • func (t *FSTree) GetRange(prm common.GetRangePrm) (common.GetRangeRes, error)
  • func (t *FSTree) Init() error
  • func (t *FSTree) Iterate(prm common.IteratePrm) (common.IterateRes, error)
  • func (t *FSTree) NumberOfObjects() (uint64, error)
  • func (t *FSTree) Open(ro bool) error
  • func (t *FSTree) Path() string
  • func (t *FSTree) Put(prm common.PutPrm) (common.PutRes, error)
  • func (t *FSTree) PutStream(addr oid.Address, handler func(*os.File) error) error
  • func (t *FSTree) SetCompressor(cc *compression.Config)
  • func (*FSTree) Type() string
• type Info
• type Option
  • func WithDepth(d uint64) Option
  • func WithDirNameLen(l int) Option
  • func WithPath(p string) Option
  • func WithPerm(p fs.FileMode) Option

Constants

const (
	// DirNameLen is how many bytes is used to group keys into directories.
	DirNameLen = 1 // in bytes
	// MaxDepth is maximum depth of nested directories.
	MaxDepth = (sha256.Size - 1) / DirNameLen
)

const Type = "fstree"

Type is fstree storage type used in logs and configuration.

Types

type FSTree

type FSTree struct {
	Info

	*compression.Config
	Depth      uint64
	DirNameLen int
	// contains filtered or unexported fields
}

FSTree represents an object storage as a filesystem tree.

func New

func New(opts ...Option) *FSTree

func (*FSTree) Close

func (*FSTree) Close() error

Close implements common.Storage.

func (*FSTree) Delete

func (t *FSTree) Delete(prm common.DeletePrm) (common.DeleteRes, error)

Delete removes the object with the specified address from the storage.

func (*FSTree) Exists

func (t *FSTree) Exists(prm common.ExistsPrm) (common.ExistsRes, error)

Exists returns the path to the file with object contents if it exists in the storage and an error otherwise.

func (*FSTree) Get

func (t *FSTree) Get(prm common.GetPrm) (common.GetRes, error)

Get returns an object from the storage by address.

func (*FSTree) GetRange

func (t *FSTree) GetRange(prm common.GetRangePrm) (common.GetRangeRes, error)

GetRange implements common.Storage.

func (*FSTree) Init

func (t *FSTree) Init() error

Init implements common.Storage.

func (*FSTree) Iterate

func (t *FSTree) Iterate(prm common.IteratePrm) (common.IterateRes, error)

Iterate iterates over all stored objects.

func (*FSTree) NumberOfObjects

func (t *FSTree) NumberOfObjects() (uint64, error)

NumberOfObjects walks the file tree rooted at FSTree's root and returns number of stored objects.

func (*FSTree) Open

func (t *FSTree) Open(ro bool) error

Open implements common.Storage.

func (*FSTree) Path

func (t *FSTree) Path() string

Path implements common.Storage.

func (*FSTree) Put

func (t *FSTree) Put(prm common.PutPrm) (common.PutRes, error)

Put puts an object in the storage.

func (*FSTree) PutStream

func (t *FSTree) PutStream(addr oid.Address, handler func(*os.File) error) error

PutStream puts executes handler on a file opened for write.

func (*FSTree) SetCompressor

func (t *FSTree) SetCompressor(cc *compression.Config)

SetCompressor implements common.Storage.

func (*FSTree) Type

func (*FSTree) Type() string

Type implements common.Storage.

type Info

type Info struct {
	// Permission bits of the root directory.
	Permissions fs.FileMode

	// Full path to the root directory.
	RootPath string
}

Info groups the information about file storage.

type Option

type Option func(*FSTree)

func WithDepth

func WithDepth(d uint64) Option

func WithDirNameLen

func WithDirNameLen(l int) Option

func WithPath

func WithPath(p string) Option

func WithPerm

func WithPerm(p fs.FileMode) Option