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Merge pull request #26 from jgarzik/txtool2

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Transaction: prefer to directly create buffers.  Add buf64() helper.
This commit is contained in:
Stephen Pair 2013-08-16 05:05:05 -07:00
commit 04e147e490
2 changed files with 28 additions and 22 deletions
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41
Transaction.js
View File

@ -38,14 +38,11 @@ function spec(b) {
}; };
TransactionIn.prototype.serialize = function serialize() { TransactionIn.prototype.serialize = function serialize() {
var bytes = Put(); var slen = util.varIntBuf(this.s.length);
var qbuf = new Buffer(4);
qbuf.writeUInt32LE(this.q, 0);
bytes.put(this.o); return Buffer.concat([this.o, slen, this.s, qbuf]);
bytes.varint(this.s.length);
bytes.put(this.s);
bytes.word32le(this.q);
return bytes.buffer();
}; };
TransactionIn.prototype.getOutpointHash = function getOutpointIndex() { TransactionIn.prototype.getOutpointHash = function getOutpointIndex() {
@ -88,13 +85,8 @@ function spec(b) {
}; };
TransactionOut.prototype.serialize = function serialize() { TransactionOut.prototype.serialize = function serialize() {
var bytes = Put(); var slen = util.varIntBuf(this.s.length);
return Buffer.concat([this.v, slen, this.s]);
bytes.put(this.v);
bytes.varint(this.s.length);
bytes.put(this.s);
return bytes.buffer();
}; };
function Transaction(data) { function Transaction(data) {
@ -143,22 +135,27 @@ function spec(b) {
}; };
Transaction.prototype.serialize = function serialize() { Transaction.prototype.serialize = function serialize() {
var bytes = Put(); var bufs = [];
bytes.word32le(this.version); var buf = new Buffer(4);
bytes.varint(this.ins.length); buf.writeUInt32LE(this.version, 0);
bufs.push(buf);
bufs.push(util.varIntBuf(this.ins.length));
this.ins.forEach(function (txin) { this.ins.forEach(function (txin) {
bytes.put(txin.serialize()); bufs.push(txin.serialize());
}); });
bytes.varint(this.outs.length); bufs.push(util.varIntBuf(this.outs.length));
this.outs.forEach(function (txout) { this.outs.forEach(function (txout) {
bytes.put(txout.serialize()); bufs.push(txout.serialize());
}); });
bytes.word32le(this.lock_time); var buf = new Buffer(4);
buf.writeUInt32LE(this.lock_time, 0);
bufs.push(buf);
return this._buffer = bytes.buffer(); return this._buffer = Buffer.concat(bufs);
}; };
Transaction.prototype.getBuffer = function getBuffer() { Transaction.prototype.getBuffer = function getBuffer() {

9
util/util.js
View File

@ -323,6 +323,15 @@ var varStrBuf = exports.varStrBuf = function varStrBuf(s) {
return Buffer.concat(varIntBuf(s.length), s); return Buffer.concat(varIntBuf(s.length), s);
}; };
var buf64 = exports.buf64 = function buf64(n) {
var lo = n & 0xffffffff;
var hi = (n >>> 32);
var buf = new Buffer(4 + 4);
buf.writeUInt32LE(lo, 0);
buf.writeUInt32LE(hi, 4);
return buf;
};
// Initializations // Initializations
exports.NULL_HASH = new Buffer(32).fill(0); exports.NULL_HASH = new Buffer(32).fill(0);
exports.EMPTY_BUFFER = new Buffer(0); exports.EMPTY_BUFFER = new Buffer(0);