1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
package protocol
import (
"math/bits"
)
func sizeOfVarString(s string) int {
return sizeOfVarInt(int64(len(s))) + len(s)
}
func sizeOfVarNullBytes(b []byte) int {
if b == nil {
return sizeOfVarInt(-1)
}
n := len(b)
return sizeOfVarInt(int64(n)) + n
}
func sizeOfVarNullBytesIface(b Bytes) int {
if b == nil {
return sizeOfVarInt(-1)
}
n := b.Len()
return sizeOfVarInt(int64(n)) + n
}
func sizeOfVarInt(i int64) int {
return sizeOfUnsignedVarInt(uint64((i << 1) ^ (i >> 63))) // zig-zag encoding
}
func sizeOfUnsignedVarInt(i uint64) int {
return (bits.Len64(i|1) + 6) / 7
}
|
