peer: some comments. do not kill on late pong.

lib/net/peer.js

@@ -159,21 +159,94 @@ function Peer(pool) {
 
 util.inherits(Peer, EventEmitter);
 
+/**
+ * Max output bytes buffered before
+ * invoking stall behavior for peer.
+ * @const {Number}
+ * @default
+ */
+
 Peer.DRAIN_MAX = 5 << 20;
+
+/**
+ * Timeout for peer to read from
+ * their end of the socket.
+ * @const {Number}
+ * @default
+ */
+
 Peer.DRAIN_TIMEOUT = 10000;
+
+/**
+ * Interval to check for drainage
+ * and required responses from peer.
+ * @const {Number}
+ * @default
+ */
+
 Peer.STALL_INTERVAL = 5000;
+
+/**
+ * Interval for pinging peers.
+ * @const {Number}
+ * @default
+ */
+
 Peer.PING_INTERVAL = 30000;
+
+/**
+ * Interval to flush invs.
+ * Higher means more invs (usually
+ * txs) will be accumulated before
+ * flushing.
+ * @const {Number}
+ * @default
+ */
+
 Peer.INV_INTERVAL = 5000;
+
+/**
+ * Required time for peers to
+ * respond to messages (i.e.
+ * getblocks/getdata).
+ * @const {Number}
+ * @default
+ */
+
 Peer.RESPONSE_TIMEOUT = 30000;
 
+/**
+ * Getter to retrieve host.
+ * @function
+ * @name host(get)
+ * @memberof Peer#
+ * @returns {String}
+ */
+
 Peer.prototype.__defineGetter__('host', function() {
   return this.address.host;
 });
 
+/**
+ * Getter to retrieve port.
+ * @function
+ * @name port(get)
+ * @memberof Peer#
+ * @returns {Number}
+ */
+
 Peer.prototype.__defineGetter__('port', function() {
   return this.address.port;
 });
 
+/**
+ * Getter to retrieve hostname.
+ * @function
+ * @name hostname(get)
+ * @memberof Peer#
+ * @returns {Number}
+ */
+
 Peer.prototype.__defineGetter__('hostname', function() {
   return this.address.hostname;
 });
@@ -862,7 +935,6 @@ Peer.prototype.sendPing = function sendPing() {
 
   if (this.challenge) {
     this.logger.debug('Peer has not responded to ping (%s).', this.hostname);
-    this.destroy();
     return;
   }