use AsyncTask for last_stop handling instead of shared

modules/async_worker.py

@@ -6,6 +6,7 @@ class AsyncTask:
         self.args = args
         self.yields = []
         self.results = []
+        self.last_stop = False
 
 
 async_tasks = []
@@ -722,7 +723,7 @@ def worker():
 
                 yield_result(async_task, imgs, do_not_show_finished_images=len(tasks) == 1)
             except fcbh.model_management.InterruptProcessingException as e:
-                if shared.last_stop == 'skip':
+                if async_task.last_stop == 'skip':
                     print('User skipped')
                     continue
                 else:

shared.py

@@ -1,2 +1 @@
-gradio_root = None
-last_stop = None
+gradio_root = None

webui.py

@@ -20,12 +20,13 @@ from modules.private_logger import get_current_html_path
 from modules.ui_gradio_extensions import reload_javascript
 from modules.auth import auth_enabled, check_auth
 
+currentTask = gr.State()
 
 def generate_clicked(*args):
     # outputs=[progress_html, progress_window, progress_gallery, gallery]
 
     execution_start_time = time.perf_counter()
-    task = worker.AsyncTask(args=list(args))
+    currentTask.value = task = worker.AsyncTask(args=list(args))
     finished = False
 
     yield gr.update(visible=True, value=modules.html.make_progress_html(1, 'Waiting for task to start ...')), \
@@ -117,13 +118,13 @@ with shared.gradio_root:
 
                     def stop_clicked():
                         import fcbh.model_management as model_management
-                        shared.last_stop = 'stop'
+                        currentTask.value.last_stop = 'stop'
                         model_management.interrupt_current_processing()
                         return [gr.update(interactive=False)] * 2
 
                     def skip_clicked():
                         import fcbh.model_management as model_management
-                        shared.last_stop = 'skip'
+                        currentTask.value.last_stop = 'skip'
                         model_management.interrupt_current_processing()
                         return