further doxygen comments.

src/pnp2/include/pnp2/NetworkProfile.hpp

@@ -1,6 +1,7 @@
 /** \file NetworkProfile.hpp 
  * 
- * This file declares the ResourceEntry and NetworkProfile classes.
+ * This file declares the Network::ResourceEntry and
+ * Network::NetworkProfile classes.
  */
 
 #ifndef NETWORK_PROFILE_HPP

src/pnp2/include/pnp2/receiver.hpp

@@ -1,3 +1,8 @@
+/** \file receiver.hpp 
+ * 
+ * This file declares the Network::receiver class
+ */
+
 #ifndef NETWORK_RECEIVER_HPP
 #define NETWORK_RECEIVER_HPP
 
@@ -13,6 +18,14 @@
 
 namespace Network
 {
+  /**
+     Allows for the reception of data through a (possibly fixed-size)
+     buffer at a configurable rate that can vary as a function of
+     time.  Optionally enables out-of-band (oob) communication to
+     senders to shut them off if the buffer is filling up too fast.
+     The receiver also records the reception of data (size, time) into
+     memory for later dump to disk.
+   */
   class receiver
   {
   public:

src/pnp2/include/pnp2/sender.hpp

@@ -1,3 +1,8 @@
+/** \file sender.hpp 
+ * 
+ * This file declares the Network::sender class.
+ */
+
 #ifndef NETWORK_SENDER_HPP
 #define NETWORK_SENDER_HPP
 
@@ -16,8 +21,21 @@
 
 namespace Network
 {
+  /**
+     Exception class thrown when application exceeds allowed data
+     production.
+   */
   class Exceeded_Production_profile {}; // sender-side exception
 
+  /**
+     Allows for the sending of data (possibly through a buffer) at a
+     configurable rate and with configurable push-back to inform if
+     the rate has been exceeded.  Can also optionally receive
+     out-of-band (oob) push-backs from its associated receiver classes
+     to disable sending while they empty their receive buffers.  The
+     sender also records the sending of data (size, time) into memory
+     for later dump to disk.
+   */
   class sender
   {
   public: