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comparison upreckon/unix.py @ 218:65b5c9390010

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With _unix, Escape presses now cancel test data unarchiving
author Oleg Oshmyan <chortos@inbox.lv>
date Mon, 22 Aug 2011 22:34:09 +0300
parents d5b6708c1955
children d9eb7d958b6d
comparison
equal deleted inserted replaced
217:ce1285728952 218:65b5c9390010
306 termios.tcsetattr(sys.stdin.fileno(), termios.TCSAFLUSH, old) 306 termios.tcsetattr(sys.stdin.fileno(), termios.TCSAFLUSH, old)
307 atexit.register(cleanup) 307 atexit.register(cleanup)
308 tty.setcbreak(sys.stdin.fileno()) 308 tty.setcbreak(sys.stdin.fileno())
309 def pause(): 309 def pause():
310 sys.stdin.read(1) 310 sys.stdin.read(1)
311 else:
312 try:
313 from signal import signal, SIGIO, SIG_DFL
314 from select import select
315 except ImportError:
316 pass
317 else:
318 def sigio_handler(signum, frame):
319 if select((sys.stdin,), (), (), 0)[0]:
320 if os.read(sys.stdin.fileno(), 1) == '\33'.encode('ascii'):
321 remove_escape_handler()
322 raise CanceledByUser
323 def install_escape_handler():
324 signal(SIGIO, sigio_handler)
325 sigio_handler(SIGIO, None)
326 def remove_escape_handler():
327 signal(SIGIO, SIG_DFL)
328 __all__ += 'install_escape_handler', 'remove_escape_handler'