Try to fix crash "QThread: Destroyed while thread is still running", call QThread.wait before reset QThread object to None

Author: manateelazycat

core/buffer.py

@@ -294,7 +294,12 @@ def start_marker_input_monitor_thread(self, callback_tag):
 
     def stop_marker_input_monitor_thread(self):
         if self.fetch_marker_input_thread is not None and self.fetch_marker_input_thread.isRunning():
-            self.fetch_marker_input_thread.running_flag = False
+            self.fetch_marker_input_thread.stop()
+            # NOTE:
+            # We need call QThread.wait() function before reset QThread object to None.
+            # Set to None will trigger Python GC release QThread object, if QThread is still running,
+            # Segment falut "QThread: Destroyed while thread is still running" will throw, it will crash EAF.
+            self.fetch_marker_input_thread.wait()
             self.fetch_marker_input_thread = None
 
     def start_search_input_monitor_thread(self, callback_tag):
@@ -306,6 +311,11 @@ def start_search_input_monitor_thread(self, callback_tag):
     def stop_search_input_monitor_thread(self):
         if self.fetch_search_input_thread is not None and self.fetch_search_input_thread.isRunning():
             self.fetch_search_input_thread.stop()
+            # NOTE:
+            # We need call QThread.wait() function before reset QThread object to None.
+            # Set to None will trigger Python GC release QThread object, if QThread is still running,
+            # Segment falut "QThread: Destroyed while thread is still running" will throw, it will crash EAF.
+            self.fetch_search_input_thread.wait()
             self.fetch_search_input_thread = None
 
     @abstract
@@ -491,6 +501,9 @@ def run(self):
 
             time.sleep(0.1)
 
+    def stop(self):
+        self.running_flag = False
+
 class FetchSearchInputThread(QThread):
 
     search_changed = pyqtSignal(str, str)