Make pubsub example more interesting

examples/PubSub.js

@@ -13,22 +13,40 @@ const app = uWS./*SSL*/App({
   maxPayloadLength: 16 * 1024 * 1024,
   idleTimeout: 10,
   // would be nice to have maxBackpressure to automatically close slow receivers
+
+  /* Setting 1: merge messages in one, or keep them as separate WebSocket frames - mergePublishedMessages */
+  /* Setting 2: compression on/off - cannot have dedicated compressor for pubsub yet */
+  /* Setting 3: maxBackpressure - when we want to automatically terminate a slow receiver */
+  /* Setting 4: send to all including us, or not? That's not a setting really just use ws.publish or global uWS.publish */
+
   /* Handlers */
   open: (ws, req) => {
-    /* Let all new sockets subscribe to chat topic */
-    ws.subscribe('chat');
+    /* Let this client listen to all sensor topics */
+    ws.subscribe('home/sensors/#');
   },
   message: (ws, message, isBinary) => {
-    console.log('Got WebSocket message!');
-    /* If we get a message from any socket, we publish it to the chat topic */
-    ws.publish('chat', message);
+    /* Parse this message according to some application
+     * protocol such as JSON [action, topic, message] */
+
+    /* Let's pretend this was a temperature message
+     * [pub, home/sensors/temperature, message] */
+    ws.publish('home/sensors/temperature', message);
+
+    /* Let's also pretend this was a light message
+     * [pub, home/sensors/light, message] */
+    ws.publish('home/sensors/light', message);
+
+    /* If you have good imagination you can also
+     * pretend some message was a subscription
+     * like so: [sub, /home/sensors/humidity].
+     * I hope you get how any application protocol
+     * can be implemented with these helpers. */
   },
   drain: (ws) => {
 
   },
   close: (ws, code, message) => {
-    // here we need to properly unsubscribe
-    // ws.unsubscribe('*');
+    /* The library guarantees proper unsubscription at close */
   }
 }).any('/*', (res, req) => {
   res.end('Nothing to see here!');

uWebSockets

@@ -1 +1 @@
-Subproject commit 5528e6f5fec2ffbd8e684e5d7d966eb0ae2bd5d5
+Subproject commit 6fe717f46a0f4188e1fc929776d1b86791ec7cb0