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69 lines
1.7 KiB
69 lines
1.7 KiB
from __future__ import unicode_literals
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from timeit import default_timer
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from .decorator import decorate
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class ExceptionCounter(object):
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def __init__(self, counter, exception):
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self._counter = counter
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self._exception = exception
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def __enter__(self):
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pass
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def __exit__(self, typ, value, traceback):
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if isinstance(value, self._exception):
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self._counter.inc()
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def __call__(self, f):
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def wrapped(func, *args, **kwargs):
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with self:
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return func(*args, **kwargs)
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return decorate(f, wrapped)
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class InprogressTracker(object):
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def __init__(self, gauge):
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self._gauge = gauge
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def __enter__(self):
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self._gauge.inc()
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def __exit__(self, typ, value, traceback):
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self._gauge.dec()
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def __call__(self, f):
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def wrapped(func, *args, **kwargs):
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with self:
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return func(*args, **kwargs)
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return decorate(f, wrapped)
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class Timer(object):
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def __init__(self, callback):
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self._callback = callback
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def _new_timer(self):
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return self.__class__(self._callback)
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def __enter__(self):
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self._start = default_timer()
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def __exit__(self, typ, value, traceback):
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# Time can go backwards.
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duration = max(default_timer() - self._start, 0)
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self._callback(duration)
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def __call__(self, f):
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def wrapped(func, *args, **kwargs):
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# Obtaining new instance of timer every time
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# ensures thread safety and reentrancy.
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with self._new_timer():
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return func(*args, **kwargs)
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return decorate(f, wrapped)
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