23 lines
721 B
Go
23 lines
721 B
Go
|
package fs
|
||
|
|
|
||
|
|
// A BlockDevice is the raw device that is meant to store a filesystem.
|
||
|
|
type BlockDevice interface {
|
||
|
|
// Closes this block device. No more methods may be called on a
|
||
|
|
// closed device.
|
||
|
|
Close() error
|
||
|
|
|
||
|
|
// Len returns the number of bytes in this block device.
|
||
|
|
Len() int64
|
||
|
|
|
||
|
|
// SectorSize returns the size of a single sector on this device.
|
||
|
|
SectorSize() int
|
||
|
|
|
||
|
|
// ReadAt reads data from the block device from the given
|
||
|
|
// offset. See io.ReaderAt for more information on this function.
|
||
|
|
ReadAt(p []byte, off int64) (n int, err error)
|
||
|
|
|
||
|
|
// WriteAt writes data to the block device at the given offset.
|
||
|
|
// See io.WriterAt for more information on this function.
|
||
|
|
WriteAt(p []byte, off int64) (n int, err error)
|
||
|
|
}
|