Lines Matching refs:signal
4 import signal
189 # Dummy signal handler, doesn't do anything
194 signal.SIGCHLD: sigchld_handler,
196 signal.SIGINT: signal.SIG_IGN,
198 old_handlers = {sig: signal.signal(sig, val)
201 # calling os.write() in the Python signal handler is racy
202 signal.set_wakeup_fd(sig_w)
300 # close unnecessary stuff and reset signal handlers
301 signal.set_wakeup_fd(-1)
303 signal.signal(sig, val)