40 lines
939 B
Python
40 lines
939 B
Python
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from time import time as timeout_timer
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from .compat import XRANGE
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try:
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from __pypy__.time import clock_gettime
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from __pypy__.time import CLOCK_MONOTONIC
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def monotonic():
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return clock_gettime(CLOCK_MONOTONIC)
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except ImportError:
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from timeit import default_timer
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else:
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default_timer = monotonic
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def compute_timer_precision(timer):
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precision = None
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points = 0
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timeout = timeout_timer() + 1.0
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previous = timer()
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while timeout_timer() < timeout or points < 5:
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for _ in XRANGE(10):
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t1 = timer()
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t2 = timer()
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dt = t2 - t1
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if 0 < dt:
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break
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else:
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dt = t2 - previous
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if dt <= 0.0:
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continue
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if precision is not None:
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precision = min(precision, dt)
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else:
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precision = dt
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points += 1
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previous = timer()
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return precision
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