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rust-bitcoin-unsafe-fast
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Remove the cursor overhead, write is implemented on vec these days

This commit is contained in:
Elichai Turkel 2020-04-12 19:00:55 +03:00
parent 25cb3d3539
commit af31017eb1
No known key found for this signature in database
GPG Key ID: 9383CDE9E8E66A7F
3 changed files with 5 additions and 7 deletions
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3
src/blockdata/transaction.rs
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@ -378,10 +378,9 @@ impl Transaction {
_ => unreachable!() _ => unreachable!()
}; };
// hash the result // hash the result
// TODO: Sanity assert that consensus_encode returned length matches the hashed length in the hasher.
let sighash_arr = endian::u32_to_array_le(sighash_u32);
let mut engine = SigHash::engine(); let mut engine = SigHash::engine();
tx.consensus_encode(&mut engine).unwrap(); tx.consensus_encode(&mut engine).unwrap();
let sighash_arr = endian::u32_to_array_le(sighash_u32);
sighash_arr.consensus_encode(&mut engine).unwrap(); sighash_arr.consensus_encode(&mut engine).unwrap();
SigHash::from_engine(engine) SigHash::from_engine(engine)
} }

6
src/consensus/encode.rs
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@ -149,10 +149,10 @@ impl From<psbt::Error> for Error {
/// Encode an object into a vector /// Encode an object into a vector
pub fn serialize<T: Encodable + ?Sized>(data: &T) -> Vec<u8> { pub fn serialize<T: Encodable + ?Sized>(data: &T) -> Vec<u8> {
let mut encoder = Cursor::new(vec![]); let mut encoder = Vec::new();
let len = data.consensus_encode(&mut encoder).unwrap(); let len = data.consensus_encode(&mut encoder).unwrap();
assert_eq!(len, encoder.get_ref().len()); assert_eq!(len, encoder.len());
encoder.into_inner() encoder
} }
/// Encode an object into a hex-encoded string /// Encode an object into a hex-encoded string

3
src/util/misc.rs
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@ -59,11 +59,10 @@ pub fn script_find_and_remove(haystack: &mut Vec<u8>, needle: &[u8]) -> usize {
/// Hash message for signature using Bitcoin's message signing format /// Hash message for signature using Bitcoin's message signing format
pub fn signed_msg_hash(msg: &str) -> sha256d::Hash { pub fn signed_msg_hash(msg: &str) -> sha256d::Hash {
let msg_len = encode::VarInt(msg.len() as u64);
// TODO: Sanity assert that consensus_encode returned length matches the hashed length in the hasher.
let mut engine = sha256d::Hash::engine(); let mut engine = sha256d::Hash::engine();
engine.input(MSG_SIGN_PREFIX); engine.input(MSG_SIGN_PREFIX);
let msg_len = encode::VarInt(msg.len() as u64);
msg_len.consensus_encode(&mut engine).unwrap(); msg_len.consensus_encode(&mut engine).unwrap();
engine.input(msg.as_bytes()); engine.input(msg.as_bytes());