From 9976208d0d445c81fea5300dcc7a7890daf8dd7f Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sat, 2 Jan 2016 00:16:36 -0800
Subject: [PATCH] comments. misc.

---
 lib/bcoin/pool.js | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/lib/bcoin/pool.js b/lib/bcoin/pool.js
index 53bb4826..e235978a 100644
--- a/lib/bcoin/pool.js
+++ b/lib/bcoin/pool.js
@@ -263,10 +263,11 @@ Pool.prototype._addLoader = function _addLoader() {
 
     if (!self.options.fullNode) {
       // Request each block
-      hashes.forEach(function(hash) {
-        self._request('filtered', hash);
-      });
+      for (i = 0; i < hashes.length; i++) {
+        self._request('filtered', hashes[i]);
+      }
 
+      // Push our getblocks packet
       self._scheduleRequests();
 
       // The part of the response is in chain, no need to escalate requests
@@ -295,25 +296,42 @@ Pool.prototype._addLoader = function _addLoader() {
 
     for (i = 0; i < hashes.length; i++) {
       hash = hashes[i];
+
+      // Resolve orphan chain
       if (self.chain.hasOrphan(hash)) {
-        peer.loadBlocks(self.chain.locatorHashes(), self.chain.getOrphanRoot(hash));
+        peer.loadBlocks(
+          self.chain.locatorHashes(),
+          self.chain.getOrphanRoot(hash)
+        );
         continue;
       }
 
+      // Restart the entire getblocks process
       if (i === hashes.length - 1)
         peer.loadBlocks(self.chain.locatorHashes(), 0);
 
+      // Request block if we don't have it
       if (!self.chain.hasBlock(hash))
         self._request('block', hash);
     }
 
+    self.emit('debug',
+      'Requesting %s block packets from %s with getdata',
+      self.request.active,
+      peer.address
+    );
+
+    // Push our getblocks packet
     self._scheduleRequests();
 
+    // Store last hash because we can
     self.block.lastHash = hashes[hashes.length - 1];
 
+    // Reset interval to avoid calling getblocks unnecessarily
     clearInterval(interval);
     interval = setInterval(load, self.load.interval);
 
+    // Reset timeout to avoid killing the loader
     clearTimeout(timer);
     timer = setTimeout(destroy, self.load.timeout);
   });
@@ -417,7 +435,7 @@ Pool.prototype._load = function _load() {
 
   this.load.hiReached = false;
 
-  console.log(
+  this.emit('debug',
     'Requesting inv packet from %s with getblocks',
     this.peers.load.address);