improve getutxos.

lib/bcoin/peer.js

@@ -877,21 +877,21 @@ Peer.prototype._handleFeeFilter = function _handleFeeFilter(payload) {
 
 /**
  * Request UTXOs from peer.
- * @param {Array[]} - Array in the form `[[hash, index], ...]`.
+ * @param {Outpoint[]} outpoints
  * @param {Function} callback - Returns [Error, {@link Coin}[]].
  */
 
-Peer.prototype.getUTXOs = function getUTXOs(utxos, callback) {
+Peer.prototype.getUTXOs = function getUTXOs(outpoints, callback) {
   var self = this;
   var reqs = [];
   var coins = [];
   var i;
 
-  for (i = 0; i < utxos.length; i += 15)
-    reqs.push(utxos.slice(i, i + 15));
+  for (i = 0; i < outpoints.length; i += 15)
+    reqs.push(outpoints.slice(i, i + 15));
 
-  utils.forEachSerial(reqs, function(utxos, next) {
-    self._getUTXOs(utxos, function(err, coin) {
+  utils.forEachSerial(reqs, function(outpoints, next) {
+    self._getUTXOs(outpoints, function(err, coin) {
       if (err)
         return next(err);
 
@@ -910,11 +910,11 @@ Peer.prototype.getUTXOs = function getUTXOs(utxos, callback) {
 /**
  * Send non-chunked getuxos to peer.
  * @private
- * @param {Array[]} utxos
+ * @param {Outpoint[]} outpoints
  * @param {Function} callback
  */
 
-Peer.prototype._getUTXOs = function _getUTXOs(utxos, callback) {
+Peer.prototype._getUTXOs = function _getUTXOs(outpoints, callback) {
   var index = 0;
   var i, prevout, coin;
 
@@ -924,7 +924,7 @@ Peer.prototype._getUTXOs = function _getUTXOs(utxos, callback) {
 
     for (i = 0; i < payload.hits.length; i++) {
       if (payload.hits[i]) {
-        prevout = utxos[i];
+        prevout = outpoints[i];
         coin = payload.coins[index++];
 
         if (!prevout || !coin)
@@ -940,9 +940,7 @@ Peer.prototype._getUTXOs = function _getUTXOs(utxos, callback) {
 
   this.write(this.framer.getUTXOs({
     mempool: true,
-    prevout: utxos.map(function(item) {
-      return { hash: item[0], index: item[1] };
-    })
+    prevout: outpoints
   }));
 };
 

lib/bcoin/pool.js

@@ -1704,32 +1704,27 @@ Pool.prototype.getPeer = function getPeer(host) {
 
 /**
  * Request UTXOs from peer.
- * @param {Array[]} - Array in the form `[[hash, index], ...]`.
+ * @param {Outpoint[]} outpoints
  * @param {Function} callback - Returns [Error, {@link Coin}[]].
  */
 
-Pool.prototype.getUTXOs = function getUTXOs(utxos, callback) {
+Pool.prototype.getUTXOs = function getUTXOs(outpoints, callback) {
   var i, peer;
 
-  if (this.peers.load && this.peers.load.version) {
-    if (this.peers.load.version.services & constants.services.GETUXO)
-      peer = this.peers.load;
+  for (i = 0; i < this.peers.all.length; i++) {
+    peer = this.peers.all[i];
+
+    if (!peer.version)
+      continue;
+
+    if (peer.version.services & constants.services.GETUXO)
+      break;
   }
 
-  if (!peer) {
-    for (i = 0; i < this.peers.regular.length; i++) {
-      peer = this.peers.regular[i];
-      if (peer.version.services & constants.services.GETUXO)
-        break;
-    }
-    if (i === this.peers.regular.length)
-      peer = null;
-  }
-
-  if (!peer)
+  if (i === this.peers.regular.length)
     return utils.asyncify(callback)(new Error('No peer available.'));
 
-  peer.getUTXOs(utxos, callback);
+  peer.getUTXOs(outpoints, callback);
 };
 
 /**
@@ -1739,19 +1734,19 @@ Pool.prototype.getUTXOs = function getUTXOs(utxos, callback) {
  */
 
 Pool.prototype.fillCoins = function fillCoins(tx, callback) {
-  var utxos = [];
+  var outpoints = [];
   var i, input;
 
   for (i = 0; i < tx.inputs.length; i++) {
     input = tx.inputs[i];
     if (!input.coin)
-      utxos.push([input.prevout.hash, input.prevout.index]);
+      outpoints.push(input.prevout);
   }
 
-  if (utxos.length === 0)
+  if (outpoints.length === 0)
     return utils.asyncify(callback)(null, tx);
 
-  this.getUTXOs(utxos, function(err, coins) {
+  this.getUTXOs(outpoints, function(err, coins) {
     if (err)
       return callback(err);
 

lib/bcoin/protocol/framer.js

@@ -884,11 +884,8 @@ Framer.getUTXOs = function getUTXOs(data, writer) {
   p.writeU8(data.mempool ? 1 : 0);
   p.writeVarint(data.prevout.length);
 
-  for (i = 0; i < data.prevout.length; i++) {
-    prevout = data.prevout[i];
-    p.writeHash(prevout.hash);
-    p.writeU32(prevout.index);
-  }
+  for (i = 0; i < data.prevout.length; i++)
+    data.prevout[i].toRaw(p);
 
   if (!writer)
     p = p.render();