gecko/testing/performance/talos/cmanager_win32.py

99 lines
3.5 KiB
Python

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