Rename async event processing methods in EventEmitter

Refactored method names in EventEmitter for clarity: Start, Stop, and IsRunning are now StartAsyncProcessing, StopAsyncProcessing, and IsAsyncProcessing. Updated documentation and usage to match new names.

Author: lijy91

src/foundation/event_emitter.cpp

@@ -9,7 +9,7 @@ EventEmitter::EventEmitter()
     : running_(false), stop_requested_(false), next_listener_id_(1) {}
 
 EventEmitter::~EventEmitter() {
-  Stop();
+  StopAsyncProcessing();
 }
 
 size_t EventEmitter::AddListener(std::type_index event_type,
@@ -89,7 +89,7 @@ void EventEmitter::EmitAsync(std::unique_ptr<Event> event) {
 
   // Start the worker thread if not already running
   if (!running_.load()) {
-    Start();
+    StartAsyncProcessing();
   }
 
   {
@@ -100,7 +100,7 @@ void EventEmitter::EmitAsync(std::unique_ptr<Event> event) {
   queue_condition_.notify_one();
 }
 
-void EventEmitter::Start() {
+void EventEmitter::StartAsyncProcessing() {
   if (running_.load()) {
     return;  // Already running
   }
@@ -111,7 +111,7 @@ void EventEmitter::Start() {
   worker_thread_ = std::thread(&EventEmitter::ProcessAsyncEvents, this);
 }
 
-void EventEmitter::Stop() {
+void EventEmitter::StopAsyncProcessing() {
   if (!running_.load()) {
     return;  // Not running
   }
@@ -132,7 +132,7 @@ void EventEmitter::Stop() {
   }
 }
 
-bool EventEmitter::IsRunning() const {
+bool EventEmitter::IsAsyncProcessing() const {
   return running_.load();
 }
 

src/foundation/event_emitter.h

@@ -141,17 +141,17 @@ class EventEmitter {
    * Start the background thread for asynchronous event processing.
    * This is called automatically when needed, but can be called explicitly.
    */
-  void Start();
+  void StartAsyncProcessing();
 
   /**
    * Stop the background thread and clear the event queue.
    */
-  void Stop();
+  void StopAsyncProcessing();
 
   /**
    * Check if the background thread is running.
    */
-  bool IsRunning() const;
+  bool IsAsyncProcessing() const;
 
   /**
    * Emit an event synchronously to all registered listeners.
@@ -176,7 +176,7 @@ class EventEmitter {
    * Emit an event asynchronously.
    * The event will be dispatched on a background thread.
    *
-   * @param event The event to emit (will be copied)
+   * @param event The event to emit (will be moved)
    */
   void EmitAsync(std::unique_ptr<Event> event);