minor improvements

example.js

@@ -0,0 +1,28 @@
+
+var bonjour = require('./index')()
+
+// advertise an HTTP server on port 3000
+var service = { name: 'My Web Server', type: 'http', port: 3000 }
+bonjour.publish(service)
+
+// browse for all http services
+var httpservice = bonjour.find({ type: 'http' }, function (service) {
+  console.log('Found an HTTP server:', service)
+})
+
+setTimeout(function () {
+  bonjour.unpublishAll(function bye () {
+    console.log('unpublished service:', service)
+  })
+  // wait for down of http service
+  httpservice.on('down', function () {
+    // try lookup again with a timeout
+    bonjour.findOne({ type: service.type, timeout: 1500 }, function (service) {
+      service && console.log('Found a service!', service)
+      !service && console.log('There is no such service!')
+      // then quit properly
+      console.log('byebye')
+      bonjour.destroy()
+    })
+  })
+}, 1500)

index.js

@@ -26,7 +26,13 @@ Bonjour.prototype.find = function (opts, onup) {
 
 Bonjour.prototype.findOne = function (opts, cb) {
   var browser = new Browser(this._server.mdns, opts)
+  var tout = opts.timeout && setTimeout(function () {
+    browser.emit('notfound')
+    browser.stop()
+    if (cb) cb(false)
+  }, opts.timeout)
   browser.once('up', function (service) {
+    clearTimeout(tout)
     browser.stop()
     if (cb) cb(service)
   })