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utils.py
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utils.py
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import os
import signal
import _thread
import threading
def exit_after(seconds):
"""Exits if the function takes longer than `seconds` to execute.
Actually it simulates a SIGHINT so it is quite adapted to RPC calls.
Taken and adapted from this very clever gist by aaronchall:
https://gist.github.com/aaronchall/6331661fe0185c30a0b4
"""
def outer(fn):
def inner(*args, **kwargs):
timer = threading.Timer(seconds, lambda _: os.kill(os.getpid(), signal.SIGINT),
args=[fn.__name__])
timer.start()
try:
result = fn(*args, **kwargs)
finally:
timer.cancel()
return result
return inner
return outer
def timeout_bool(seconds, fn, *args, **kwargs):
"""Convenient function that return False if function timed out, True otherwise.
"""
try:
exit_after(seconds)(fn)(*args, **kwargs)
except KeyboardInterrupt:
return False
return True