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# -*- coding: iso-8859-1 -*-
"""
MoinMoin - Clock
@copyright: 2001-2003 Juergen Hermann <jh@web.de>,
2003-2006 MoinMoin:ThomasWaldmann
@license: GNU GPL, see COPYING for details.
"""
import time
class Clock:
""" Helper class for code profiling
we do not use time.clock() as this does not work across threads
This is not thread-safe when it comes to multiple starts for one timer.
It is possible to recursively call the start and stop methods, you
should just ensure that you call them often enough :)
"""
def __init__(self):
self.timings = {}
self.states = {}
def _get_name(timer, generation):
if generation == 0:
return timer
else:
return "%s|%i" % (timer, generation)
_get_name = staticmethod(_get_name)
def start(self, timer):
state = self.states.setdefault(timer, -1)
new_level = state + 1
name = Clock._get_name(timer, new_level)
self.timings[name] = time.time() - self.timings.get(name, 0)
self.states[timer] = new_level
def stop(self, timer):
state = self.states.setdefault(timer, -1)
if state >= 0: # timer is active
name = Clock._get_name(timer, state)
self.timings[name] = time.time() - self.timings[name]
self.states[timer] = state - 1
def value(self, timer):
base_timer = timer.split("|")[0]
state = self.states.get(base_timer, None)
if state == -1:
result = "%.3fs" % self.timings[timer]
elif state is None:
result = "- (%s)" % state
else:
#print "Got state %r" % state
result = "%.3fs (still running)" % (time.time() - self.timings[timer])
return result
def dump(self):
outlist = []
for timer in self.timings:
value = self.value(timer)
outlist.append("%s = %s" % (timer, value))
outlist.sort()
return outlist
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