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#!/usr/bin/python2
import os
import sys
import termios
import atexit
from threading import Thread
from Queue import Queue, Empty
class ConsoleInput(Thread):
def __init__(self, queue, exit='\x14'):
Thread.__init__(self)
self.daemon = True
self.q = queue
self._exit = exit
self.fd = sys.stdin.fileno()
old = termios.tcgetattr(self.fd)
new = termios.tcgetattr(self.fd)
new[3] = new[3] & ~termios.ICANON & ~termios.ECHO & ~termios.ISIG
new[6][termios.VMIN] = 1
new[6][termios.VTIME] = 0
termios.tcsetattr(self.fd, termios.TCSANOW, new)
def cleanup():
termios.tcsetattr(self.fd, termios.TCSAFLUSH, old)
atexit.register(cleanup)
def run(self):
while True:
c = os.read(self.fd, 1)
if c == self._exit:
self.q.put((self, None))
return
else:
self.q.put((self, c))
if __name__ == "__main__":
q = Queue()
i = ConsoleInput(q)
i.start()
while True:
event = q.get(block=True)
src, c = event
if c == '\x04':
break
os.write(sys.stdout.fileno(), c.upper())
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