Whitespace and comment fixes

src/xpub.cpp

@@ -74,9 +74,9 @@ void zmq::xpub_t::xread_activated (pipe_t *pipe_)
             if (options.type == ZMQ_XPUB && (unique || (*data && verbose)))
                 pending.push_back (blob_t (data, size));
         }
-	else /*process message unrelated to sub/unsub*/ {
+	else 
+            //  Process user message coming upstream from xsub socket
 	    pending.push_back (blob_t (data, size));
-	}
 
         sub.close ();
     }
@@ -177,7 +177,6 @@ void zmq::xpub_t::send_unsubscription (unsigned char *data_, size_t size_,
     xpub_t *self = (xpub_t*) arg_;
 
     if (self->options.type != ZMQ_PUB) {
-
         //  Place the unsubscription to the queue of pending (un)sunscriptions
         //  to be retrived by the user later on.
         blob_t unsub (size_ + 1, 0);

src/xsub.cpp

@@ -48,7 +48,7 @@ zmq::xsub_t::~xsub_t ()
 void zmq::xsub_t::xattach_pipe (pipe_t *pipe_, bool icanhasall_)
 {
     // icanhasall_ is unused
-    (void)icanhasall_;
+    (void) icanhasall_;
 
     zmq_assert (pipe_);
     fq.attach (pipe_);
@@ -87,22 +87,24 @@ int zmq::xsub_t::xsend (msg_t *msg_)
     size_t size = msg_->size ();
     unsigned char *data = (unsigned char*) msg_->data ();
 
-    // Process the subscription.
     if (*data == 1) {
-	// this used to filter out duplicate subscriptions,
+        //  Process subscribe message
+	//  This used to filter out duplicate subscriptions,
 	//  however this is alread done on the XPUB side and
 	//  doing it here as well breaks ZMQ_XPUB_VERBOSE
-	// when there are forwarding devices involved
+	//  when there are forwarding devices involved.
         subscriptions.add (data + 1, size - 1);
         return dist.send_to_all (msg_);
     }
-    else if (*data == 0) {
+    else 
+    if (*data == 0) {
+        //  Process unsubscribe message
         if (subscriptions.rm (data + 1, size - 1))
             return dist.send_to_all (msg_);
     }
-    else /*upstream message unrelated to sub/unsub*/ {
+    else 
+        //  User message sent upstream to XPUB socket
         return dist.send_to_all (msg_);
-    }
 
     int rc = msg_->close ();
     errno_assert (rc == 0);