From af993dc66ba7d01b8bdf497c148cdeca437a9016 Mon Sep 17 00:00:00 2001
From: Fedor Indutny <fedor@indutny.com>
Date: Fri, 9 May 2014 15:13:20 +0400
Subject: [PATCH] tx-pool: emit updates only at end of .add()

---
 lib/bcoin/tx-pool.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/bcoin/tx-pool.js b/lib/bcoin/tx-pool.js
index 493ee3b8..f64d4883 100644
--- a/lib/bcoin/tx-pool.js
+++ b/lib/bcoin/tx-pool.js
@@ -60,6 +60,7 @@ TXPool.prototype.add = function add(tx, noWrite) {
   this._all[hash] = tx;
 
   var own = this._wallet.own(tx);
+  var update = false;
 
   // Consume unspent money or add orphans
   for (var i = 0; i < tx.inputs.length; i++) {
@@ -71,7 +72,7 @@ TXPool.prototype.add = function add(tx, noWrite) {
       // Add TX to inputs and spend money
       tx.input(unspent.tx, unspent.index);
       delete this._unspent[key];
-      this.emit('update');
+      updated = true;
       continue;
     }
 
@@ -83,10 +84,11 @@ TXPool.prototype.add = function add(tx, noWrite) {
     this._orphans[key] = { tx: tx, index: input.out.index };
   }
 
-  if (!own)
+  if (!own) {
+    if (updated)
+      this.emit('update', this._lastTs);
     return;
-
-  var updated = false;
+  }
 
   // Add unspent outputs or fullfill orphans
   for (var i = 0; i < tx.outputs.length; i++) {