Files
dragonpilot/common/timeout.py
Dragonpilot Team 46a47f2580 dragonpilot v2022.09.07 for EON/C2
version: dragonpilot v2022.09.07 release for EON/C2
date: 2022-09-07T07:01:54
dp-dev(priv2) beta2 commit: 30a852791f
2022-09-07 07:01:54 +00:00

28 lines
699 B
Python

import signal
class TimeoutException(Exception):
pass
class Timeout:
"""
Timeout context manager.
For example this code will raise a TimeoutException:
with Timeout(seconds=5, error_msg="Sleep was too long"):
time.sleep(10)
"""
def __init__(self, seconds, error_msg=None):
if error_msg is None:
error_msg = f'Timed out after {seconds} seconds'
self.seconds = seconds
self.error_msg = error_msg
def handle_timeout(self, signume, frame):
raise TimeoutException(self.error_msg)
def __enter__(self):
signal.signal(signal.SIGALRM, self.handle_timeout)
signal.alarm(self.seconds)
def __exit__(self, exc_type, exc_val, exc_tb):
signal.alarm(0)