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add tx.setLockTime and tx.increaseFee (rbf).

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This commit is contained in:
Christopher Jeffrey 2016-01-18 12:40:41 -08:00
parent 911f9534e4
commit 1d5e3ca27e
1 changed files with 43 additions and 14 deletions
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57
lib/bcoin/tx.js
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@ -69,11 +69,8 @@ function TX(data, block) {
this.ps = this.ts === 0 ? utils.now() : 0;
// Discourage fee snipping a la bitcoind
// if (data.lock == null && this.chain) {
// this.lock = this.chain.height();
// if ((Math.random() * 10 | 0) === 0)
// this.lock = Math.max(0, this.lock - (Math.random() * 100 | 0));
// }
// if (data.lock == null)
// this._avoidFeeSnipping();
}
TX.prototype.clone = function clone() {
@ -136,14 +133,6 @@ TX.prototype._input = function _input(obj, index) {
seq: options.seq
});
// Locktime won't work without a seq < uint32max
// if (this.lock !== 0)
// input.seq = 0;
// Replace by fee opt-in
// if (this.rbf)
// input.seq = 0xffffffff - 1;
// Try modifying existing input first
i = this._inputIndex(input.out.hash, input.out.index);
if (i !== -1) {
@ -958,6 +947,9 @@ TX.prototype.getUnspent = function getUnspent(unspent, address, fee) {
TX.prototype.fillUnspent = function fillUnspent(unspent, address, fee) {
var result;
if (unspent)
this.unspent = unspent;
if (address)
this.changeAddress = address;
@ -966,7 +958,7 @@ TX.prototype.fillUnspent = function fillUnspent(unspent, address, fee) {
assert(this.changeAddress);
result = this.getUnspent(unspent, this.changeAddress, this.hardFee);
result = this.getUnspent(this.unspent, this.changeAddress, this.hardFee);
if (!result.inputs)
return result;
@ -1013,6 +1005,9 @@ TX.prototype._recalculateFee = function recalculateFee() {
real = Math.ceil(size / 1024) * constants.tx.fee;
fee = this.getFee().toNumber();
// if (this.hardFee)
// real = this.hardFee;
if (real === fee) {
if (this.changeIndex === -1)
this.outputs.pop();
@ -1076,6 +1071,40 @@ TX.prototype.funds = function funds(side) {
return acc;
};
TX.prototype._avoidFeeSnipping = function _avoidFeeSnipping() {
if (!this.chain)
return;
this.lock = this.chain.height();
if ((Math.random() * 10 | 0) === 0)
this.lock = Math.max(0, this.lock - (Math.random() * 100 | 0));
};
TX.prototype.setLockTime = function setLockTime(lock) {
var i, input;
this.lock = lock;
for (i = 0; i < this.inputs.length; i++) {
input = this.inputs[i];
if (input.seq === 0xffffffff)
input.seq = 0;
}
};
TX.prototype.increaseFee = function increaseFee(fee) {
var i, input;
this.hardFee = fee || this.getFee().add(new bn(10000));
this.fillUnspent();
for (i = 0; i < this.inputs.length; i++) {
input = this.inputs[i];
input.seq = 0xffffffff - 1;
}
};
TX.prototype.full = function full() {
if (this.inputs.length === 0)
return false;