LBRYCommunity/bitcoinjs-lib
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Transaction: extract Script size calculations

Browse source
This commit is contained in:
Daniel Cousens 2015-02-19 12:11:37 +11:00
parent 49345748bb
commit dc253bb77c
1 changed files with 7 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
src/transaction.js
View file

@ -68,7 +68,7 @@ Transaction.fromBuffer = function(buffer, __disableAssert) {
for (i = 0; i < voutLen; ++i) { for (i = 0; i < voutLen; ++i) {
tx.outs.push({ tx.outs.push({
value: readUInt64(), value: readUInt64(),
script: readScript(), script: readScript()
}) })
} }
@ -252,20 +252,18 @@ Transaction.prototype.getId = function () {
} }
Transaction.prototype.toBuffer = function () { Transaction.prototype.toBuffer = function () {
var txInSize = this.ins.reduce(function(a, x) { function scriptSize(script) {
return a + (40 + bufferutils.varIntSize(x.script.buffer.length) + x.script.buffer.length) var length = script.buffer.length
}, 0)
var txOutSize = this.outs.reduce(function(a, x) { return bufferutils.varIntSize(length) + length
return a + (8 + bufferutils.varIntSize(x.script.buffer.length) + x.script.buffer.length) }
}, 0)
var buffer = new Buffer( var buffer = new Buffer(
8 + 8 +
bufferutils.varIntSize(this.ins.length) + bufferutils.varIntSize(this.ins.length) +
bufferutils.varIntSize(this.outs.length) + bufferutils.varIntSize(this.outs.length) +
txInSize + this.ins.reduce(function(sum, input) { return sum + 40 + scriptSize(input.script) }, 0) +
txOutSize this.outs.reduce(function(sum, output) { return sum + 8 + scriptSize(output.script) }, 0)
) )
var offset = 0 var offset = 0