advanced-python-homework-2023/noblocking_turtle_shell.py
2023-11-16 23:56:44 +03:00

62 lines
1.7 KiB
Python

import cmd
import threading
from threading import Thread
from threading import Event
import time
from queue import Queue
from equipment.turtle_device import TurtleDevice
class TurtleDeviceThread(threading.Thread):
# TODO(Homework 4) \begin
def __message_processing__(self):
while True:
new_message = self.queue.get()
print("Name and args of action are {}".format(new_message))
#self.device.
#time.sleep(30)
self.queue.task_done()
if self.event.is_set():
break
def __message_thread__(self):
thread = Thread(target = self.__message_processing__, daemon=True)
thread.start()
# TODO(Homework 4) \end
def __init__(self):
super().__init__()
self.device = TurtleDevice()
self.queue = Queue()
self.event = Event()
class NoBlockingTurtleShell(cmd.Cmd):
intro = 'Welcome to the turtle shell. Type help or ? to list commands.\n'
prompt = '(turtle) '
file = None
def __init__(self, turtle_thread: TurtleDeviceThread):
# TODO(Homework 4) \begin
super(NoBlockingTurtleShell, self).__init__()
turtle_thread.__message_thread__()
# TODO(Homework 4) \end
def do_execute(self, arg):
# TODO(Homework 4) \begin
turtle_thread.queue.put(arg)
# TODO(Homework 4) \end
def do_exit(self, arg):
# TODO(Homework 4) \begin
turtle_thread.event.set()
# TODO(Homework 4) \end
if __name__ == '__main__':
turtle_thread = TurtleDeviceThread()
# TODO(Homework 4: Correct start thread)
NoBlockingTurtleShell(turtle_thread).cmdloop()