From ab24d03d3fe4db499d1f87531fb6e34b9b84b01a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A1s=20Wiesner?= <wabe@mit.bme.hu>
Date: Fri, 27 Feb 2026 21:42:12 +0100
Subject: [PATCH] - threading/queueing implemented

---
 sync_client.py | 35 ++++++++++++++++++++++-------------
 1 file changed, 22 insertions(+), 13 deletions(-)

diff --git a/sync_client.py b/sync_client.py
index 2a62cf7..80a3736 100644
--- a/sync_client.py
+++ b/sync_client.py
@@ -3,7 +3,7 @@ import tkinter as tk
 from tkinter import ttk
 from tkinter import filedialog, messagebox
 from watchdog.observers import Observer
-from watchdog.events import FileSystemEventHandler
+from watchdog.events import FileSystemEvent, FileSystemEventHandler
 import os
 import requests
 import json
@@ -21,13 +21,18 @@ class SyncClient:
     def start(self) -> None:
         _sself = self
         
-        self.__event_queue = queue.Queue()
+        self._event_queue = queue.Queue()
         
-        def comm_thread_routine():
-            while True:
-                event = self.__event_queue.get()
+        def comm_thread_routine(queue: queue.Queue):
+            run = True
+            while run:
+                event: FileSystemEvent = queue.get()
                 
-                rel_path = str(event.src_path).removeprefix(_sself.dir())                         
+                if event.src_path == "**CLOSE**" and event.is_synthetic == True:
+                    run = False
+                    continue
+                
+                rel_path = str(event.src_path).removeprefix(_sself.dir()).removeprefix(os.sep)                     
                 if event.event_type == "created" or event.event_type == "modified":
                     _sself.upload(rel_path)
                 elif event.event_type == "moved":
@@ -46,9 +51,10 @@ class SyncClient:
             def on_any_event(self, event):
                 if event.event_type in FileChangeHandler.EVENTS_WATCHED:
                     if event.src_path != _sself.dir():
-                        _sself.__event_queue.put(event)
+                        _sself._event_queue.put(event)
                         
-        self.__comm_thread = threading.Thread()
+        self.__comm_thread = threading.Thread(target=comm_thread_routine, args=(self._event_queue,))
+        self.__comm_thread.start()
                         
         observer = Observer()
         event_handler = FileChangeHandler()
@@ -65,10 +71,8 @@ class SyncClient:
         self.__key = key
         
         self.__comm_thread: threading.Thread
-        self.__event_queue: queue.Queue
-        
-        self.start()
-    
+        self._event_queue: queue.Queue
+            
     
     def dir(self) -> str:
         return self.__dir
@@ -159,6 +163,9 @@ class SyncClient:
     
     def close(self) -> None:
         self.__observer.stop()
+        self._event_queue.put(FileSystemEvent("**CLOSE**", is_synthetic=True))
+        self.__comm_thread.join()
+        return
 
 
     def upload_all(self) -> None:
@@ -327,8 +334,9 @@ class SyncClientGui:
         
         def on_close():
             self.__save_settings()
-            self.__win.destroy()
             self.stop_sync()
+            self.__win.destroy()
+
             
         self.__win.protocol("WM_DELETE_WINDOW", on_close)
         
@@ -352,6 +360,7 @@ class SyncClientGui:
     
     def mainloop(self) -> None:
         self.__win.mainloop()
+        return
         
 # ------------------