blob: e50564851bea25c5d81831ca2920055b660bfffa [file] [log] [blame]
# Copyright 2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
__all__ = ['monotonic']
import time
import threading
except ImportError:
import dummy_threading as threading
monotonic = getattr(time, 'monotonic', None)
if monotonic is None:
def monotonic():
Emulate time.monotonic() which is available in Python 3.3 and later.
@return: A float expressed in seconds since an epoch.
with monotonic._lock:
current = time.time() + monotonic._offset
delta = current - monotonic._previous
if delta < 0:
monotonic._offset -= delta
current = monotonic._previous
monotonic._previous = current
return current
# offset is used to counteract any backward movements
monotonic._offset = 0
monotonic._previous = time.time()
monotonic._lock = threading.Lock()