data

package

v2.0.3 Latest Latest Go to latest Published: Nov 12, 2023 License: MIT Imports: 11 Imported by: 0

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Repository

git.mills.io/prologic/bitcask

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Documentation ¶

Overview ¶

Package data implements on disk and in memory storage for data files

Index ¶

func CheckAndRecover(path string, cfg *config.Config) error
type Datafile
- func NewInMemoryDatafile(id int, maxKeySize uint32, maxValueSize uint64) Datafile
- func NewOnDiskDatafile(path string, id int, readonly bool, maxKeySize uint32, maxValueSize uint64, ...) (Datafile, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func CheckAndRecover ¶

func CheckAndRecover(path string, cfg *config.Config) error

CheckAndRecover checks and recovers the last datafile. If the datafile isn't corrupted, this is a noop. If it is, the longest non-corrupted prefix will be kept and the rest will be *deleted*. Also, the index file is also *deleted* which will be automatically recreated on next startup.

Types ¶

type Datafile ¶

type Datafile interface {
	FileID() int
	Name() string
	Close() error
	Sync() error
	Size() int64
	Read() (internal.Entry, int64, error)
	ReadAt(index, size int64) (internal.Entry, error)
	Write(internal.Entry) (int64, int64, error)
	Readonly() Datafile
}

Datafile is an interface that represents a readable and writeable datafile

func NewInMemoryDatafile ¶

func NewInMemoryDatafile(id int, maxKeySize uint32, maxValueSize uint64) Datafile

NewInMemoryDatafile creates a new in-memory datafile

func NewOnDiskDatafile ¶

func NewOnDiskDatafile(path string, id int, readonly bool, maxKeySize uint32, maxValueSize uint64, fileMode os.FileMode) (Datafile, error)

NewOnDiskDatafile opens an existing on disk datafile

Source Files ¶

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