93 lines
2.9 KiB
Python
93 lines
2.9 KiB
Python
import bge # Bibliothèque Blender Game Engine (UPBGE)
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import threading # Multithreading
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import trace
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import sys
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###############################################################################
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# twin_threading.py
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# @title: Gestion des tâches (threads)
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# @project: Blender-EduTech
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# @lang: fr
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# @authors: Philippe Roy <philippe.roy@ac-grenoble.fr>
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# @copyright: Copyright (C) 2020-2023 Philippe Roy
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# @license: GNU GPL
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###############################################################################
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scene = bge.logic.getCurrentScene()
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debug_thread = scene.objects['System']['debug_thread']
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###############################################################################
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# Méthode kill pour les tâches (threads)
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###############################################################################
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class thread_with_trace(threading.Thread):
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def __init__(self, *args, **keywords):
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threading.Thread.__init__(self, *args, **keywords)
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self.killed = False
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def start(self):
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self.__run_backup = self.run
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self.run = self.__run
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threading.Thread.start(self)
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def __run(self):
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sys.settrace(self.globaltrace)
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self.__run_backup()
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self.run = self.__run_backup
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def globaltrace(self, frame, event, arg):
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if event == 'call':
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return self.localtrace
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else:
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return None
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def localtrace(self, frame, event, arg):
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if self.killed:
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if event == 'line':
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raise SystemExit()
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return self.localtrace
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def kill(self):
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self.killed = True
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###############################################################################
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# Start et stop des tâches (threads)
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###############################################################################
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def start(threads, type_txt, fct):
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threads.append(thread_with_trace(target = fct))
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threads[len(threads)-1].start()
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if (debug_thread):
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print ("Thread",type_txt, "#", len(threads)-1, "open.")
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# Stop des threads
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def stop(threads, type_txt):
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i=0
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zombie_flag=False
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for t in threads:
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if not t.is_alive():
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if (debug_thread):
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print ("Thread",type_txt, "#",i,"closed.")
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else:
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if (debug_thread):
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print ("Thread",type_txt, "#",i,"still open ...")
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t.kill()
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t.join()
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if not t.is_alive():
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if (debug_thread):
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print ("Thread",type_txt, "#",i,"killed.")
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else:
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if (debug_thread):
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print ("Thread",type_txt, "#",i,"zombie...")
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zombie_flag=True
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i +=1
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if zombie_flag==False:
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if (debug_thread):
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print ("All threads",type_txt, "are closed.")
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scene.objects['System']['thread_cmd']=False
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return True
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else:
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if (debug_thread):
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print ("There are zombies threads",type_txt, ".")
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return False
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