datafile

package

v1.0.0 Latest Latest Go to latest Published: Dec 18, 2022 License: MIT Imports: 4 Imported by: 0

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const (
	ACTIVE_DATAFILE = "barrel_%d.db"
)

This section is empty.

This section is empty.

type DataFile struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func New(dir string, index int) (*DataFile, error)

New initialises a db store for storing/reading an active db file. At a given time only one file can be active.

func (d *DataFile) Close() error

Close closes the file descriptors of the underlying db file.

func (d *DataFile) ID() int

ID returns the ID of the datafile.

func (d *DataFile) Read(pos int, size int) ([]byte, error)

func (d *DataFile) Size() (int64, error)

Size returns the size of DB file in bytes.

func (d *DataFile) Sync() error

Sync flushes the in-memory buffers to the disk.

func (d *DataFile) Write(data []byte) (int, error)

Write writes the record to the underlying db file.