# Copyright 2012 Google Inc. All Rights Reserved.
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#
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"""Tools for recording and reporting timeline of benchmark_run."""
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from __future__ import print_function
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__author__ = 'yunlian@google.com (Yunlian Jiang)'
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import time
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class Event(object):
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"""One event on the timeline."""
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def __init__(self, name='', cur_time=0):
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self.name = name
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self.timestamp = cur_time
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class Timeline(object):
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"""Use a dict to store the timeline."""
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def __init__(self):
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self.events = []
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def Record(self, event):
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for e in self.events:
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assert e.name != event, ('The event {0} is already recorded.'
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.format(event))
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cur_event = Event(name=event, cur_time=time.time())
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self.events.append(cur_event)
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def GetEvents(self):
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return ([e.name for e in self.events])
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def GetEventDict(self):
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tl = {}
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for e in self.events:
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tl[e.name] = e.timestamp
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return tl
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def GetEventTime(self, event):
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for e in self.events:
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if e.name == event:
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return e.timestamp
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raise IndexError, 'The event {0} is not recorded'.format(event)
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def GetLastEventTime(self):
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return self.events[-1].timestamp
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def GetLastEvent(self):
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return self.events[-1].name
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