P2Pool/moneroutil
P2Pool/moneroutil
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Update dependencies, reduce allocations in Base58 encoding

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This commit is contained in:
DataHoarder 2023-05-11 09:11:14 +02:00
parent a2daa2d5fc
commit 0fe13b57d1
Signed by: DataHoarder
SSH key fingerprint: SHA256:OLTRf6Fl87G52SiR7sWLGNzlJt4WOX+tfI2yxo0z7xk
3 changed files with 23 additions and 17 deletions
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22
base58.go
View file

@ -20,17 +20,22 @@ var base58Lookup = map[string]int{
var base128 = uint128.From64(58)
func encodeChunk(raw []byte, padding int) (result []byte) {
remainder := uint128.FromBytes(append(bytes.Repeat([]byte{0}, 16-len(raw)), raw...)).ReverseBytes()
func encodeChunk(raw []byte, padding int, buf []byte) []byte {
var data [16]byte
copy(data[16-len(raw):], raw)
remainder := uint128.FromBytesBE(data[:])
var current uint128.Uint128
for remainder.Cmp64(0) > 0 {
remainder, current = remainder.QuoRem(base128)
result = append([]byte{BASE58[current.Lo]}, result...)
buf = append(buf, BASE58[current.Lo])
}
if len(result) < padding {
result = append(bytes.Repeat([]byte{'1'}, padding-len(result)), result...)
if len(buf) < padding {
buf = append(buf, bytes.Repeat([]byte{'1'}, padding-len(buf))...)
}
return
for i, j := 0, len(buf)-1; i < j; i, j = i+1, j-1 {
buf[i], buf[j] = buf[j], buf[i]
}
return buf
}
func decodeChunk(encoded string) (result []byte) {
@ -73,13 +78,14 @@ func EncodeMoneroBase58(data ...[]byte) string {
}
result := make([]byte, 0, len(data)*2)
buf := make([]byte, 0, len(data)*2)
length := len(combined)
rounds := length / 8
for i := 0; i < rounds; i++ {
result = append(result, encodeChunk(combined[i*8:(i+1)*8], 11)...)
result = append(result, encodeChunk(combined[i*8:(i+1)*8], 11, buf[:0])...)
}
if length%8 > 0 {
result = append(result, encodeChunk(combined[rounds*8:], 7)...)
result = append(result, encodeChunk(combined[rounds*8:], 7, buf[:0])...)
}
return string(result)
}

6
go.mod
View file

@ -3,8 +3,8 @@ module git.gammaspectra.live/P2Pool/moneroutil
go 1.19
require (
golang.org/x/crypto v0.0.0-20221005025214-4161e89ecf1b
lukechampine.com/uint128 v1.2.0
golang.org/x/crypto v0.9.0
lukechampine.com/uint128 v1.3.0
)
require golang.org/x/sys v0.0.0-20221006211917-84dc82d7e875 // indirect
require golang.org/x/sys v0.8.0 // indirect

12
go.sum
View file

@ -1,6 +1,6 @@
golang.org/x/crypto v0.0.0-20221005025214-4161e89ecf1b h1:huxqepDufQpLLIRXiVkTvnxrzJlpwmIWAObmcCcUFr0=
golang.org/x/crypto v0.0.0-20221005025214-4161e89ecf1b/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/sys v0.0.0-20221006211917-84dc82d7e875 h1:AzgQNqF+FKwyQ5LbVrVqOcuuFB67N47F9+htZYH0wFM=
golang.org/x/sys v0.0.0-20221006211917-84dc82d7e875/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
lukechampine.com/uint128 v1.2.0 h1:mBi/5l91vocEN8otkC5bDLhi2KdCticRiwbdB0O+rjI=
lukechampine.com/uint128 v1.2.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
golang.org/x/crypto v0.9.0 h1:LF6fAI+IutBocDJ2OT0Q1g8plpYljMZ4+lty+dsqw3g=
golang.org/x/crypto v0.9.0/go.mod h1:yrmDGqONDYtNj3tH8X9dzUun2m2lzPa9ngI6/RUPGR0=
golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
lukechampine.com/uint128 v1.3.0 h1:cDdUVfRwDUDovz610ABgFD17nXD4/uDgVHl2sC3+sbo=
lukechampine.com/uint128 v1.3.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=