From 5193e3533ac2b14d2ad0dd1b8882e36f6ea2737c Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Fri, 13 May 2016 05:53:51 -0700
Subject: [PATCH] halflife.

---
 lib/bcoin/mempool.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/bcoin/mempool.js b/lib/bcoin/mempool.js
index b3c78ea0..b10c0683 100644
--- a/lib/bcoin/mempool.js
+++ b/lib/bcoin/mempool.js
@@ -865,7 +865,7 @@ Mempool.prototype.removeUnchecked = function removeUnchecked(entry, limit, callb
  */
 
 Mempool.prototype.getMinRate = function getMinRate() {
-  var now, halflife, exp;
+  var now, halflife, size;
 
   if (!this.blockSinceBump || this.minFeeRate === 0)
     return this.minFeeRate;
@@ -874,10 +874,11 @@ Mempool.prototype.getMinRate = function getMinRate() {
 
   if (now > this.lastFeeUpdate + 10) {
     halflife = constants.mempool.FEE_HALFLIFE;
+    size = this.getSize();
 
-    if (this.size < this.maxSize / 4)
+    if (size < this.maxSize / 4)
       halflife >>>= 2;
-    else if (this.size < this.maxSize / 2)
+    else if (size < this.maxSize / 2)
       halflife >>>= 1;
 
     this.minFeeRate /= Math.pow(2.0, (now - this.lastFeeUpdate) / halflife | 0);