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Alex Sharov 2021-10-10 19:37:10 +07:00 committed by GitHub
parent 7d8355a99a
commit bbcf1f0cff
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 67 additions and 10 deletions
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75
rlp/encodel.go
View File

@ -62,19 +62,76 @@ func U64Len(i uint64) int {
}
func EncodeU64(i uint64, to []byte) int {
if i > 128 {
beLen := (bits.Len64(i) + 7) / 8
to[0] = 128 + byte(beLen)
binary.BigEndian.PutUint64(to[1:], i)
copy(to[1:], to[1+8-beLen:1+8])
return 1 + beLen
}
if i == 0 {
to[0] = 128
return 1
}
to[0] = byte(i)
return 1
if i < 128 {
to[0] = byte(i) // fits single byte
return 1
}
b := to[1:]
l := 0
// writes i to b in big endian byte order, using the least number of bytes needed to represent i.
switch {
case i < (1 << 8):
b[0] = byte(i)
l = 1
case i < (1 << 16):
b[0] = byte(i >> 8)
b[1] = byte(i)
l = 2
case i < (1 << 24):
b[0] = byte(i >> 16)
b[1] = byte(i >> 8)
b[2] = byte(i)
l = 3
case i < (1 << 32):
b[0] = byte(i >> 24)
b[1] = byte(i >> 16)
b[2] = byte(i >> 8)
b[3] = byte(i)
l = 4
case i < (1 << 40):
b[0] = byte(i >> 32)
b[1] = byte(i >> 24)
b[2] = byte(i >> 16)
b[3] = byte(i >> 8)
b[4] = byte(i)
l = 5
case i < (1 << 48):
b[0] = byte(i >> 40)
b[1] = byte(i >> 32)
b[2] = byte(i >> 24)
b[3] = byte(i >> 16)
b[4] = byte(i >> 8)
b[5] = byte(i)
l = 6
case i < (1 << 56):
b[0] = byte(i >> 48)
b[1] = byte(i >> 40)
b[2] = byte(i >> 32)
b[3] = byte(i >> 24)
b[4] = byte(i >> 16)
b[5] = byte(i >> 8)
b[6] = byte(i)
l = 7
default:
b[0] = byte(i >> 56)
b[1] = byte(i >> 48)
b[2] = byte(i >> 40)
b[3] = byte(i >> 32)
b[4] = byte(i >> 24)
b[5] = byte(i >> 16)
b[6] = byte(i >> 8)
b[7] = byte(i)
l = 8
}
to[0] = 128 + byte(l)
return 1 + l
}
func StringLen(sLen int) int {

2
txpool/pool_fuzz_test.go
View File

@ -255,7 +255,7 @@ func fakeRlpTx(slot *TxSlot, data []byte) []byte {
buf[0] = byte(DynamicFeeTxType)
p := 1
p += rlp.EncodeListPrefix(dataLen, buf[p:])
p += rlp.EncodeU64(1, buf[p:])
p += rlp.EncodeU64(1, buf[p:]) //chainID
p += rlp.EncodeU64(slot.nonce, buf[p:])
p += rlp.EncodeU64(slot.tip, buf[p:])
p += rlp.EncodeU64(slot.feeCap, buf[p:])