From 610ecde4017c73c8ce9f323f95925d52a90fb67c Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Thu, 9 Jun 2016 05:43:23 -0700
Subject: [PATCH] mempool: tx deps.

---
 lib/bcoin/mempool.js | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/lib/bcoin/mempool.js b/lib/bcoin/mempool.js
index 8d7c247a..c1d47e8a 100644
--- a/lib/bcoin/mempool.js
+++ b/lib/bcoin/mempool.js
@@ -1795,6 +1795,7 @@ function MempoolEntry(options) {
   this.count = options.count;
   this.size = options.size;
   this.fees = options.fees;
+  this.dependencies = options.dependencies;
 }
 
 /**
@@ -1806,6 +1807,15 @@ function MempoolEntry(options) {
 
 MempoolEntry.fromTX = function fromTX(tx, height) {
   var data = tx.getPriority(height);
+  var dependencies = false;
+  var i;
+
+  for (i = 0; i < tx.inputs.length; i++) {
+    if (tx.inputs[i].coin.height === -1) {
+      dependencies = true;
+      break;
+    }
+  }
 
   return new MempoolEntry({
     tx: tx,
@@ -1815,7 +1825,8 @@ MempoolEntry.fromTX = function fromTX(tx, height) {
     ts: utils.now(),
     count: 1,
     size: tx.getVirtualSize(),
-    fees: tx.getFee()
+    fees: tx.getFee(),
+    dependencies: dependencies
   });
 };
 
@@ -1839,6 +1850,7 @@ MempoolEntry.prototype.toRaw = function toRaw(writer) {
   p.writeU32(this.count);
   p.writeU32(this.size);
   p.writeVarint(this.fees);
+  p.writeU8(this.dependencies ? 1 : 0);
 
   if (!writer)
     p = p.render();
@@ -1862,7 +1874,8 @@ MempoolEntry.fromRaw = function fromRaw(data) {
     ts: p.readU32(),
     count: p.readU32(),
     size: p.readU32(),
-    fees: p.readVarint()
+    fees: p.readVarint(),
+    dependencies: p.readU8() === 1
   });
 };