Documentation
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Overview ¶
Package rollsum implements rolling checksums similar to apenwarr's bup, which is similar to librsync.
The bup project is at https://github.com/apenwarr/bup and its splitting in particular is at https://github.com/apenwarr/bup/blob/master/lib/bup/bupsplit.c
Index ¶
Constants ¶
const (
RollsumBits = 16
)
Variables ¶
This section is empty.
Functions ¶
func NoCompression ¶ added in v1.59.0
NoCompression writes directly to the output file without any compression
Such an output does not follow the zstd:chunked spec and cannot be generally consumed; this function only exists for internal purposes and should not be called from outside c/storage.
func ZstdCompressor ¶
ZstdCompressor is a CompressorFunc for the zstd compression algorithm.
Types ¶
type RollSum ¶
type RollSum struct {
// contains filtered or unexported fields
}
func NewRollSum ¶
func NewRollSum() *RollSum
func (*RollSum) OnSplit ¶
OnSplit reports whether at least 13 consecutive trailing bits of the current checksum are set the same way.
func (*RollSum) OnSplitWithBits ¶
OnSplitWithBits reports whether at least n consecutive trailing bits of the current checksum are set the same way.
Source Files