36 lines
646 B
Go
36 lines
646 B
Go
package storage
|
|
|
|
import "encoding/binary"
|
|
|
|
type revision struct {
|
|
main int64
|
|
sub int64
|
|
}
|
|
|
|
func (a revision) GreaterThan(b revision) bool {
|
|
if a.main > b.main {
|
|
return true
|
|
}
|
|
if a.main < b.main {
|
|
return false
|
|
}
|
|
return a.sub > b.sub
|
|
}
|
|
|
|
func newRevBytes() []byte {
|
|
return make([]byte, 8+1+8)
|
|
}
|
|
|
|
func revToBytes(rev revision, bytes []byte) {
|
|
binary.BigEndian.PutUint64(bytes, uint64(rev.main))
|
|
bytes[8] = '_'
|
|
binary.BigEndian.PutUint64(bytes[9:], uint64(rev.sub))
|
|
}
|
|
|
|
func bytesToRev(bytes []byte) revision {
|
|
return revision{
|
|
main: int64(binary.BigEndian.Uint64(bytes[0:8])),
|
|
sub: int64(binary.BigEndian.Uint64(bytes[9:])),
|
|
}
|
|
}
|