gatt - enable service changed characteristic

examples/pizza/peripheral.js

@@ -24,6 +24,7 @@ var PizzaService = require('./pizza-service');
 //
 var name = 'PizzaSquat';
 var pizzaService = new PizzaService(new pizza.Pizza());
+var pizzaService2 = new PizzaService(new pizza.Pizza());
 
 //
 // Wait until the BLE radio powers on before attempting to advertise.
@@ -53,8 +54,16 @@ bleno.on('advertisingStart', function(err) {
     // Once we are advertising, it's time to set up our services,
     // along with our characteristics.
     //
-    bleno.setServices([
-      pizzaService
-    ]);
+    bleno.setServices([ pizzaService ], function (){
+        var flip = false;
+        setInterval(function (){
+            if(flip){
+              bleno.removeService(pizzaService2);
+            } else {
+              bleno.addService(pizzaService2);
+            }
+            flip = !flip;
+        }, 1500);
+    });
   }
 });

lib/bleno.js

@@ -199,10 +199,35 @@ Bleno.prototype.onAdvertisingStop = function() {
   this.emit('advertisingStop');
 };
 
+Bleno.prototype.addService = function(service, callback) {
+  if(callback){
+    this.once('servicesChanged', callback);
+  }
+
+   this._bindings.addService(service);
+};
+
+Bleno.prototype.removeAllServices = function(callback) {
+  if(callback){
+    this.once('removedAllServices', callback);
+  }
+
+  this._bindings.removeAllServices();
+}
+
+Bleno.prototype.removeService = function(service, callback) {
+  if(callback){
+    this.once('removedService', callback);
+  }
+
+  this._bindings.removeService(service);
+};
+
 Bleno.prototype.setServices = function(services, callback) {
   if (callback) {
     this.once('servicesSet', callback);
   }
+
   this._bindings.setServices(services);
 };
 

lib/hci-socket/bindings.js

@@ -48,7 +48,25 @@ BlenoBindings.prototype.stopAdvertising = function() {
   this._gap.stopAdvertising();
 };
 
-BlenoBindings.prototype.setServices = function(services) {
+BlenoBindings.prototype.addService = function(service) {
+  this._gatt.addService(service);
+
+  this.emit('servicesChanged');
+};
+
+BlenoBindings.prototype.removeAllServices = function() {
+  this._gatt.removeAllServices();
+
+  this.emit('removedAllServices');
+}
+
+BlenoBindings.prototype.removeService = function(service){
+  this._gatt.removeService(service);
+
+  this.emit('removedService');
+}
+
+BlenoBindings.prototype.setServices = function(services, deviceName) {
   this._gatt.setServices(services);
 
   this.emit('servicesSet');