Changes between Version 31 and Version 32 of Documentation/Tutorial/PingPong

Timestamp:

Apr 28, 2009, 4:49:09 PM (16 years ago)

Author:

huebsch

Comment:

--

Documentation/Tutorial/PingPong

@@ -169 +169 @@
 To shut a service down after its usage, every service provides a method ''shutdown'' which is automatically called upon finishing. In here, we stop the timer, leave the instance, unbind all bindings and finally stop the node and ''Ariba''. Don't forget to delete yopur objects to prevent from memory leaks.
 
-{{{
-80 void PingPong::onNodeJoin( const NodeID& nodeid, const SpoVNetID& spovnetid ){
-81
-82      if( !startping ){
-83              
-84              logging_info( "establishing link to node " << nodeid.toString() );
-85              const LinkID link = overlay->establishLink( nodeid, PingPong::PINGPONG_ID );
-86
-87              logging_info( "adding node to registered nodes in pingpong: " << nodeid.toString() );
-88              remoteNodes.insert( make_pair(nodeid,link) );
-89              
-90              Timer::setInterval( 2000 );
-91              Timer::start();
-92      }
-93 }
-}}}
-
 So far, the node is up and running, created or joined a SpoVNet instance. As very node starts a timer as soon as it has joined, we now inspect what happens when the timer is triggered.
 
@@ -221 +204 @@
 }}}
 
-Everytime the timer 'fires', ''eventFunction'' is called on a node. In this example, every node sends a message to every node that is part of the network at this point in time. To accomplish this, it iterates through all established links (line 20-23), builts a message for every link and finally sends the message using the Base Overlay in ''Ariba'' (line 123). Sending messages is done by passing the message object to ''Ariba'', together with the target link to use. . We will now take a short look at how such a message is composed in the ping pong example.
+Everytime the timer 'fires', ''eventFunction'' is called on a node. In this example, every node sends a message to every node that is part of the network at this point in time. To accomplish this, it builds a message (line 15) and iterates through all neighboring nodes (line 20-23). To each of this nodes, it sends the message. Sending messages is simply done by passing the message object to ''Ariba'', together with the target node ID. . We will now take a short look at how such a message is composed in the ping pong example.
 
 {{{
@@ -277 +260 @@
 
 Node leaves in our case only lead to deletion of links we had stored before, for we don't need them anymore (line 102).
+
+{{{
+80 void PingPong::onNodeJoin( const NodeID& nodeid, const SpoVNetID& spovnetid ){
+81
+82      if( !startping ){
+83              
+84              logging_info( "establishing link to node " << nodeid.toString() );
+85              const LinkID link = overlay->establishLink( nodeid, PingPong::PINGPONG_ID );
+86
+87              logging_info( "adding node to registered nodes in pingpong: " << nodeid.toString() );
+88              remoteNodes.insert( make_pair(nodeid,link) );
+89              
+90              Timer::setInterval( 2000 );
+91              Timer::start();
+92      }
+93 }
+}}}