expose Agent.stop() to JS to complete execution

assignment-client/src/Agent.cpp

@@ -24,6 +24,10 @@ Agent::Agent(const unsigned char* dataBuffer, int numBytes) :
     
 }
 
+void Agent::stop() {
+    _shouldStop = true;
+}
+
 static size_t writeScriptDataToString(void *contents, size_t size, size_t nmemb, void *userdata) {
     size_t realSize = size * nmemb;
     

assignment-client/src/Agent.h

@@ -19,11 +19,13 @@ class Agent : public Assignment {
 public:
     Agent(const unsigned char* dataBuffer, int numBytes);
     
-    bool volatile _shouldStop;
-    
     void run();
+public slots:
+    void stop();
 signals:
     void willSendVisualDataCallback();
+private:
+    bool volatile _shouldStop;
 };
 
 #endif /* defined(__hifi__Operative__) */