зеркало из https://github.com/mozilla/pjs.git
99 строки
3.5 KiB
Python
99 строки
3.5 KiB
Python
# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is standalone Firefox Windows performance test.
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#
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# The Initial Developer of the Original Code is Google Inc.
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# Portions created by the Initial Developer are Copyright (C) 2006
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Annie Sullivan <annie.sullivan@gmail.com> (original author)
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# Ben Hearsum <bhearsum@wittydomain.com> (OS independence)
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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import win32pdh
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import win32pdhutil
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class CounterManager:
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def __init__(self, process, counters=None):
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self.process = process
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self.registeredCounters = {}
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self.registerCounters(counters)
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# PDH might need to be "refreshed" if it has been queried while Firefox
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# is closed
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win32pdh.EnumObjects(None, None, 0, 1)
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def registerCounters(self, counters):
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for counter in counters:
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self.registeredCounters[counter] = []
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def unregisterCounters(self, counters):
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for counter in counters:
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if counter in self.registeredCounters:
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del self.registeredCounters[counter]
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def getRegisteredCounters(self):
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return keys(self.registeredCounters)
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def getCounterValue(self, counter):
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hq = self.registeredCounters[counter][0]
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hc = self.registeredCounters[counter][1]
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try:
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win32pdh.CollectQueryData(hq)
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type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
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return val
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except:
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return None
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def getProcess(self):
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return self.process
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def startMonitor(self):
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# PDH might need to be "refreshed" if it has been queried while Firefox
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# is closed
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win32pdh.EnumObjects(None, None, 0, 1)
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for counter in self.registeredCounters:
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path = win32pdh.MakeCounterPath((None, 'process', self.process,
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None, -1, counter))
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hq = win32pdh.OpenQuery()
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try:
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hc = win32pdh.AddCounter(hq, path)
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except:
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win32pdh.CloseQuery(hq)
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self.registeredCounters[counter] = [hq, hc]
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def stopMonitor(self):
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for counter in self.registeredCounters:
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win32pdh.RemoveCounter(self.registeredCounters[counter][1])
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win32pdh.CloseQuery(self.registeredCounters[counter][0])
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self.registeredCounters.clear()
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