Files
dragonpilot/common/timeout.py
Dragonpilot Team 32da3d10c7 dragonpilot v2022.08.14
version: dragonpilot v0.8.16 release
date: 2022-08-14T16:03:36
dp-dev(priv) master commit: 9a40536565e6da64122ef8c30d7e97523fde518e
2022-08-14 16:03:47 -07:00

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)