github-mirrors/VictoriaMetrics
1
0
Fork 0
mirror of https://github.com/VictoriaMetrics/VictoriaMetrics.git synced 2024-12-31 15:06:26 +00:00
Code Issues Projects Releases Packages Wiki Activity

wip

Browse source
This commit is contained in:
Aliaksandr Valialkin 2024-05-13 23:56:49 +02:00
parent 435506b223
commit e6570f22d0
No known key found for this signature in database
GPG key ID: 52C003EE2BCDB9EB
1 changed files with 19 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
lib/encoding/int.go
View file

@ -360,8 +360,26 @@ func marshalVarUint64sSlow(dst []byte, us []uint64) []byte {
return dst
}
// UnmarshalVarUint64 returns unmarshaled uint64 from src and its size in bytes
// UnmarshalVarUint64 returns unmarshaled uint64 from src and its size in bytes.
//
// It returns 0 or negative value if it cannot unmarshal uint64 from src.
func UnmarshalVarUint64(src []byte) (uint64, int) {
if len(src) == 0 {
return 0, 0
}
if src[0] < 0x80 {
// Fast path for a single byte
return uint64(src[0]), 1
}
if len(src) == 1 {
return 0, 0
}
if src[1] < 0x80 {
// Fast path for two bytes
return uint64(src[0]&0x7f) | uint64(src[1])<<7, 2
}
// Slow path for other number of bytes
return binary.Uvarint(src)
}