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