def __init__(self,
ffprocess,
process,
counters=None,
childProcess="plugin-container"):
self.ffprocess = ffprocess
self.childProcess = childProcess
self.registeredCounters = {}
self.registerCounters(counters)
# PDH might need to be "refreshed" if it has been queried while the browser
# is closed
win32pdh.EnumObjects(None, None, 0, 1)
# Add the counter path for the default process.
for counter in self.registeredCounters:
path = win32pdh.MakeCounterPath(
(None, 'process', process, None, -1, counter))
hq = win32pdh.OpenQuery()
try:
hc = win32pdh.AddCounter(hq, path)
except:
win32pdh.CloseQuery(hq)
#assume that this is a memory counter for the system, not a process counter
path = win32pdh.MakeCounterPath(
(None, 'Memory', None, None, -1, counter))
hq = win32pdh.OpenQuery()
try:
hc = win32pdh.AddCounter(hq, path)
except:
win32pdh.CloseQuery(hq)
self.registeredCounters[counter] = [hq, [(hc, path)]]
self.updateCounterPathsForChildProcesses(counter)
def __win32LogProfile(self, instance, inum, threads, interval, file):
# create the process performance counters
process_counters=[]
process_query=win32pdh.OpenQuery()
for counter in "Working Set", "Virtual Bytes", "Private Bytes", "Thread Count", "Handle Count":
path = win32pdh.MakeCounterPath( (None, "Process", instance, None, inum, counter) )
process_counters.append(win32pdh.AddCounter(process_query, path))
win32pdh.CollectQueryData(process_query)
# create the thread performance counter
thread_counters=[]
thread_query=win32pdh.OpenQuery()
for (instance, inum) in threads:
path=win32pdh.MakeCounterPath( (None, "Thread", instance, None, inum, "% Processor Time") )
thread_counters.append(win32pdh.AddCounter(thread_query, path))
win32pdh.CollectQueryData(thread_query)
# perform the continual data collection until the thread is no longer active
data = [0]*(len(process_counters)+1)
try:
while self.active:
win32pdh.CollectQueryData(process_query)
win32pdh.CollectQueryData(thread_query)
for i in range(len(process_counters)):
try:
data[i+1] = win32pdh.GetFormattedCounterValue(process_counters[i], win32pdh.PDH_FMT_LONG)[1]
except win32api.error:
data[i+1] = -1
data[0]=0
for i in range(0, len(thread_counters)):
try:
data[0]=data[0]+win32pdh.GetFormattedCounterValue(thread_counters[i], win32pdh.PDH_FMT_LONG)[1]
except Exception:
pass
currentTime = time.strftime("%d/%m/%y %H:%M:%S", time.gmtime(time.time()))
file.write( "%s\t%s\t%d\t%d\t%d\t%d\t%d\n" % (currentTime, data[0]//self.numProcessors, float(data[1])/1024,
float(data[2])/1024, float(data[3])/1024, float(data[4]), float(data[5])))
file.flush()
time.sleep(interval)
finally:
# clean up
for c in process_counters:
win32pdh.RemoveCounter(c)
win32pdh.CloseQuery(process_query)
for c in thread_counters:
win32pdh.RemoveCounter(c)
win32pdh.CloseQuery(thread_query)
if file != sys.stdout: file.close()
self.active = 0
def get_counter_val(counter_path, *args, **kwargs):
try:
sleep = float(kwargs['sleep'][0])
except (KeyError, TypeError, IndexError):
sleep = 0
query = win32pdh.OpenQuery()
try:
counter = win32pdh.AddCounter(query, counter_path)
try:
win32pdh.CollectQueryData(query)
if sleep != 0:
time.sleep(sleep)
win32pdh.CollectQueryData(query)
_, _, _, _, _, _, _, info, _ = win32pdh.GetCounterInfo(counter, False)
_, value = win32pdh.GetFormattedCounterValue(counter, win32pdh.PDH_FMT_DOUBLE)
finally:
win32pdh.RemoveCounter(counter)
finally:
win32pdh.CloseQuery(query)
unit = info[-1]
if not isinstance(value, (int, long)):
value = round(value, 2)
return [value, unit]
def process_list_nt():
# each instance is a process, you can have multiple processes w/same name
processLocalizedName = win32pdhutil.find_pdh_counter_localized_name(
"Process")
junk, instances = win32pdh.EnumObjectItems(None, None,
processLocalizedName,
win32pdh.PERF_DETAIL_WIZARD)
proc_ids = {}
proc_dict = {}
for instance in instances:
if instance in proc_dict:
proc_dict[instance] = proc_dict[instance] + 1
else:
proc_dict[instance] = 0
idProcessLocalizedName = win32pdhutil.find_pdh_counter_localized_name(
"ID Process")
for instance, max_instances in list(proc_dict.items()):
for inum in range(max_instances + 1):
hq = win32pdh.OpenQuery() # initializes the query handle
path = win32pdh.MakeCounterPath(
(None, processLocalizedName, instance, None, inum,
idProcessLocalizedName))
counter_handle = win32pdh.AddCounter(hq, path)
win32pdh.CollectQueryData(hq) # collects data for the counter
type, val = win32pdh.GetFormattedCounterValue(
counter_handle, win32pdh.PDH_FMT_LONG)
proc_ids[str(val)] = instance
win32pdh.CloseQuery(hq)
return proc_ids
def killbase(self, base=None):
'''
### This is not a public method
Mission critical function to kill the win32pdh objects held
by this object. User's should generally use the close method
instead of this method, in case a sub-class has overridden
close to provide some special functionality.
'''
# Kill Pythonic references to the objects in this object's namespace
self._base = None
counters = self.counters
self.counters = []
# we don't kill the curpaths for convenience, this allows the
# user to close a query and still access the last paths
self.active = 0
# Now call the delete functions on all of the objects
try:
map(win32pdh.RemoveCounter, counters)
except:
pass
try:
win32pdh.CloseQuery(base)
except:
pass
del (counters)
del (base)
def GetProcesses():
win32pdh.EnumObjects(None, None, win32pdh.PERF_DETAIL_WIZARD)
junk, instances = win32pdh.EnumObjectItems(None,None,'Process', win32pdh.PERF_DETAIL_WIZARD )
proc_dict = {}
for instance in instances:
if proc_dict.has_key(instance):
proc_dict[instance] = proc_dict[instance] + 1
else:
proc_dict[instance]=0
proc_ids = []
for instance, max_instances in proc_dict.items():
for inum in xrange(max_instances+1):
hq = win32pdh.OpenQuery() # initializes the query handle
try:
path = win32pdh.MakeCounterPath( (None, 'Process', instance, None, inum, 'ID Process') )
counter_handle=win32pdh.AddCounter(hq, path) #convert counter path to counter handle
try:
win32pdh.CollectQueryData(hq) #collects data for the counter
type, val = win32pdh.GetFormattedCounterValue(counter_handle, win32pdh.PDH_FMT_LONG)
proc_ids.append((instance, val))
except win32pdh.error, e:
print e
win32pdh.RemoveCounter(counter_handle)
except win32pdh.error, e:
print e
win32pdh.CloseQuery (hq)
def isProcessRunning(pid):
if sys.platform == "win32":
# First get a list of all processes. All we get is the process name
ignoreme, processNames = win32pdh.EnumObjectItems(
None, None, 'process', win32pdh.PERF_DETAIL_WIZARD)
processCounts = {}
for name in processNames:
if name in processCounts:
processCounts[name] = processCounts[name] + 1
else:
processCounts[name] = 0
# For each process, get the pid. Stop if we find our PID
found = False
for name, nprocs in processCounts.items():
if found:
break
for procNum in xrange(0, nprocs + 1):
hq = win32pdh.OpenQuery()
path = win32pdh.MakeCounterPath(
(None, 'process', name, None, procNum, 'ID Process'))
counter_handle = win32pdh.AddCounter(hq, path)
win32pdh.CollectQueryData(hq)
type, val = win32pdh.GetFormattedCounterValue(
counter_handle, win32pdh.PDH_FMT_LONG)
win32pdh.CloseQuery(hq)
if val == pid:
found = True
break
return found
else:
# unix
psoutput = runCommandCaptureOutput("ps -p %s" % pid, True)
return len(psoutput) >= 2
def fget(self):
import win32pdh
object = 'Process'
items, instances = win32pdh.EnumObjectItems(None, None, object, win32pdh.PERF_DETAIL_WIZARD)
instance_dict = {}
for instance in instances:
try:
instance_dict[instance] = instance_dict[instance] + 1
except KeyError:
instance_dict[instance] = 0
procs = []
for instance, max_instances in instance_dict.items():
t = []
for inum in xrange(max_instances+1):
hq = win32pdh.OpenQuery()
hcs = []
for item in ['ID Process', 'Creating Process ID']:
path = win32pdh.MakeCounterPath((None,object,instance,None,inum,item))
hcs.append(win32pdh.AddCounter(hq,path))
win32pdh.CollectQueryData(hq)
t.append(instance)
for hc in hcs:
type,val=win32pdh.GetFormattedCounterValue(hc,win32pdh.PDH_FMT_LONG)
t.append(val)
win32pdh.RemoveCounter(hc)
win32pdh.CloseQuery(hq)
procs.append(t)
return procs
def mem_used():
counter = r'\Memory\Committed Bytes'
machine, object, instance, parentInstance, index, counter = win32pdh.ParseCounterPath(
counter)
instance = None
inum = -1
format = win32pdh.PDH_FMT_DOUBLE
machine = None
path = win32pdh.MakeCounterPath(
(machine, object, instance, None, inum, counter))
hq = win32pdh.OpenQuery()
try:
hc = win32pdh.AddCounter(hq, path)
try:
win32pdh.CollectQueryData(hq)
type, val = win32pdh.GetFormattedCounterValue(hc, format)
return int(val / 1024)
except pywintypes.error:
return 0
finally:
win32pdh.RemoveCounter(hc)
finally:
win32pdh.CloseQuery(hq)
def procids():
#each instance is a process, you can have multiple processes w/same name
junk, instances = win32pdh.EnumObjectItems(None, None, 'process',
win32pdh.PERF_DETAIL_WIZARD)
proc_ids = []
proc_dict = {}
for instance in instances:
if instance in proc_dict:
proc_dict[instance] = proc_dict[instance] + 1
else:
proc_dict[instance] = 0
for instance, max_instances in proc_dict.items():
for inum in xrange(max_instances + 1):
hq = win32pdh.OpenQuery() # initializes the query handle
path = win32pdh.MakeCounterPath(
(None, 'process', instance, None, inum, 'ID Process'))
counter_handle = win32pdh.AddCounter(hq, path)
win32pdh.CollectQueryData(hq) #collects data for the counter
type, val = win32pdh.GetFormattedCounterValue(
counter_handle, win32pdh.PDH_FMT_LONG)
proc_ids.append((instance, str(val)))
win32pdh.CloseQuery(hq)
proc_ids.sort()
return proc_ids
def disconnect(self):
# https://docs.microsoft.com/en-us/windows/win32/api/pdh/nf-pdh-pdhclosequery
# https://mhammond.github.io/pywin32/win32pdh__CloseQuery_meth.html
win32pdh.CloseQuery(self.__query_handle)
if self.network_resource is not None:
self.network_resources.remove(self.network_resource)
def querysinglecounter(self, path, fmt):
h = win32pdh.OpenQuery()
c = win32pdh.AddCounter(h, path)
win32pdh.CollectQueryData(h)
discard, v = win32pdh.GetFormattedCounterValue(c, fmt)
win32pdh.CloseQuery(h)
return v
def _StopDebugger(self):
try:
if self.cpu_hq != None:
win32pdh.RemoveCounter(self.cpu_counter_handle)
win32pdh.CloseQuery(self.cpu_hq)
self.cpu_hq = None
self.cpu_counter_handle = None
except:
pass
if self.thread != None and self.thread.is_alive():
self.quit.set()
self.started.clear()
self.thread.join(5)
if self.thread.is_alive():
self.thread.terminate()
self.thread.join()
time.sleep(0.25) # Take a breath
elif self.thread != None:
# quit could be set by event handler now
self.thread.join()
self.thread = None
def GetPerformanceAttributes(object,
counter,
instance=None,
inum=-1,
format=None,
machine=None):
# NOTE: Many counters require 2 samples to give accurate results,
# including "% Processor Time" (as by definition, at any instant, a
# thread's CPU usage is either 0 or 100). To read counters like this,
# you should copy this function, but keep the counter open, and call
# CollectQueryData() each time you need to know.
# See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
# My older explanation for this was that the "AddCounter" process forced
# the CPU to 100%, but the above makes more sense :)
import win32pdh
if format is None: format = win32pdh.PDH_FMT_LONG
path = win32pdh.MakeCounterPath(
(machine, object, instance, None, inum, counter))
hq = win32pdh.OpenQuery()
try:
hc = win32pdh.AddCounter(hq, path)
try:
win32pdh.CollectQueryData(hq)
type, val = win32pdh.GetFormattedCounterValue(hc, format)
return val
finally:
win32pdh.RemoveCounter(hc)
finally:
win32pdh.CloseQuery(hq)
def count_processes():
object = 'Process'
items, instances = win32pdh.EnumObjectItems(None, None, object,
win32pdh.PERF_DETAIL_WIZARD)
instance_dict = {}
for instance in instances:
try:
instance_dict[instance] = instance_dict[instance] + 1
except KeyError:
instance_dict[instance] = 0
counters = {}
hcs = []
hq = win32pdh.OpenQuery()
for instance, max_instances in instance_dict.items():
for inum in range(max_instances + 1):
if instance == 'chrome':
path = win32pdh.MakeCounterPath((None, object, instance, None,
inum, 'Creating Process ID'))
hcs.append(win32pdh.AddCounter(hq, path))
win32pdh.CollectQueryData(hq)
for hc in hcs:
try:
type, val = win32pdh.GetFormattedCounterValue(
hc, win32pdh.PDH_FMT_LONG)
except win32pdh.counter_status_error:
pass
try:
counters[val] += 1
except KeyError:
counters[val] = 1
win32pdh.RemoveCounter(hc)
win32pdh.CloseQuery(hq)
return counters
def FindMyCounter():
pid_me = win32api.GetCurrentProcessId()
object = "Process"
items, instances = win32pdh.EnumObjectItems(None, None, object, -1)
for instance in instances:
# We use 2 counters - "ID Process" and "Working Set"
counter = "ID Process"
format = win32pdh.PDH_FMT_LONG
hq = win32pdh.OpenQuery()
path = win32pdh.MakeCounterPath(
(None, object, instance, None, -1, "ID Process"))
hc1 = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath(
(None, object, instance, None, -1, "Working Set"))
hc2 = win32pdh.AddCounter(hq, path)
win32pdh.CollectQueryData(hq)
type, pid = win32pdh.GetFormattedCounterValue(hc1, format)
if pid == pid_me:
win32pdh.RemoveCounter(hc1) # not needed any more
return hq, hc2
# Not mine - close the query and try again
win32pdh.RemoveCounter(hc1)
win32pdh.RemoveCounter(hc2)
win32pdh.CloseQuery(hq)
else:
raise RuntimeError, "Can't find myself!?"
def ShowAllProcesses():
object = find_pdh_counter_localized_name("Process")
items, instances = win32pdh.EnumObjectItems(None, None, object,
win32pdh.PERF_DETAIL_WIZARD)
# Need to track multiple instances of the same name.
instance_dict = {}
for instance in instances:
try:
instance_dict[instance] = instance_dict[instance] + 1
except KeyError:
instance_dict[instance] = 0
# Bit of a hack to get useful info.
items = [find_pdh_counter_localized_name("ID Process")] + items[:5]
print("Process Name", ",".join(items))
for instance, max_instances in instance_dict.items():
for inum in range(max_instances + 1):
hq = win32pdh.OpenQuery()
hcs = []
for item in items:
path = win32pdh.MakeCounterPath((None, object, instance,
None, inum, item))
hcs.append(win32pdh.AddCounter(hq, path))
win32pdh.CollectQueryData(hq)
# as per http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262938, some "%" based
# counters need two collections
time.sleep(0.01)
win32pdh.CollectQueryData(hq)
print("%-15s\t" % (instance[:15]), end=' ')
for hc in hcs:
type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
print("%5d" % (val), end=' ')
win32pdh.RemoveCounter(hc)
print()
win32pdh.CloseQuery(hq)
def getProcessPrefix(self, pid):
object = "Process"
items, instances = win32pdh.EnumObjectItems(
None, None, object, win32pdh.PERF_DETAIL_WIZARD)
# Need to track multiple instances of the same name.
instance_dict = {}
for instance in instances:
try:
instance_dict[instance] = instance_dict[instance] + 1
except KeyError:
instance_dict[instance] = 0
# Bit of a hack to get useful info.
item = "ID Process"
for instance, max_instances in instance_dict.items():
for inum in xrange(max_instances + 1):
hq = win32pdh.OpenQuery()
try:
hcs = []
path = win32pdh.MakeCounterPath(
(None, object, instance, None, inum, item))
hc = win32pdh.AddCounter(hq, path)
try:
win32pdh.CollectQueryData(hq)
type, val = win32pdh.GetFormattedCounterValue(
hc, win32pdh.PDH_FMT_LONG)
if val == pid:
return "\\".join(path.split("\\")[:-1]) + "\\"
finally:
win32pdh.RemoveCounter(hc)
finally:
win32pdh.CloseQuery(hq)
def GetProcessID ( name ) :
if os.name != 'nt' :
return None
else:
import win32pdh
import time
object = "Process"
items, instances = win32pdh.EnumObjectItems(None,None,object, win32pdh.PERF_DETAIL_WIZARD)
val = None
if name in instances :
hq = win32pdh.OpenQuery()
hcs = []
item = "ID Process"
path = win32pdh.MakeCounterPath( (None,object,name, None, 0, item) )
hcs.append(win32pdh.AddCounter(hq, path))
win32pdh.CollectQueryData(hq)
time.sleep(0.01)
win32pdh.CollectQueryData(hq)
for hc in hcs:
type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
win32pdh.RemoveCounter(hc)
win32pdh.CloseQuery(hq)
return val
def stopMonitor(self):
try:
for counter in self.registeredCounters:
for singleCounter in self.registeredCounters[counter][1]:
win32pdh.RemoveCounter(singleCounter[0])
win32pdh.CloseQuery(self.registeredCounters[counter][0])
self.registeredCounters.clear()
except:
print 'failed to stopMonitor'
def get_counters(counter_list):
"""
Get the values for the passes list of counters
Args:
counter_list (list):
A list of counters to lookup
Returns:
dict: A dictionary of counters and their values
"""
if not isinstance(counter_list, list):
raise CommandExecutionError("counter_list must be a list of tuples")
try:
# Start a Query instances
query = win32pdh.OpenQuery()
# Build the counters
counters = build_counter_list(counter_list)
# Add counters to the Query
for counter in counters:
counter.add_to_query(query)
# https://docs.microsoft.com/en-us/windows/desktop/perfctrs/collecting-performance-data
win32pdh.CollectQueryData(query)
# The sleep here is required for counters that require more than 1
# reading
time.sleep(1)
win32pdh.CollectQueryData(query)
ret = {}
for counter in counters:
try:
ret.update({counter.path: counter.value()})
except pywintypes.error as exc:
if exc.strerror == "No data to return.":
# Some counters are not active and will throw an error if
# there is no data to return
continue
else:
raise
except pywintypes.error as exc:
if exc.strerror == "No data to return.":
# Sometimess, win32pdh.CollectQueryData can err
# so just ignore it
return {}
else:
raise
finally:
win32pdh.CloseQuery(query)
return ret
def get_processes_dict(self):
"""
returns a dictionary that contains all the processes PIDs as keys and names as values.
:return: processes dictionary as described above.
"""
try:
# Getting all processes name
z, proc_name = win32pdh.EnumObjectItems(None, None, self.process_obj, win32pdh.PERF_DETAIL_WIZARD)# PERF_DETAIL_WIZARD = 400
instances = {}
for instance in proc_name:
if instance in instances:
instances[instance] += 1
else:
instances[instance] = 1
proc_pid_name = {}
for instance, max_instances in instances.items():
for inum in xrange(max_instances + 1):
try:
hq = win32pdh.OpenQuery() # initializes the query handle
path = win32pdh.MakeCounterPath((None, self.process_obj, instance, None, inum, self.item))
counter_handle = win32pdh.AddCounter(hq, path) # convert counter path to counter handle
win32pdh.CollectQueryData(hq) # collects data for the counter
type, val = win32pdh.GetFormattedCounterValue(counter_handle, win32pdh.PDH_FMT_LONG)
proc_pid_name[val] = [instance]
win32pdh.CloseQuery(hq)
except:
raise OSError("Problem getting process id")
return proc_pid_name
except:
try:
from win32com.client import GetObject
WMI = GetObject('winmgmts:') # COM object
proc_instances = WMI.InstancesOf('Win32_Process') # WMI instanse
proc_name = [process.Properties_('Name').Value for process in
proc_instances] # Get the processess names
proc_id = [process.Properties_('ProcessId').Value for process in
proc_instances] # Get the processess names
proc_pid_name = {}
proc_id_counter = 0
for instance in range(len(proc_name)):
proc_pid_name[proc_id[instance]] = [(proc_name[instance])]
proc_id_counter += 1
return proc_pid_name
except:
raise OSError('Counldnt get the process list')
def main(argv):
scheduler = BlockingScheduler()
global hq
hq = win32pdh.OpenQuery()
counters, instances = win32pdh.EnumObjectItems(None, None, 'Process', win32pdh.PERF_DETAIL_WIZARD)
proc_num = {}
for instance in instances:
if instance == '_Total' or instance == 'Idle' or instance == 'System':
continue
if instance in proc_num:
proc_num[instance] = proc_num[instance] + 1
else:
proc_num[instance] = 1
for instance in proc_num:
num = proc_num[instance]
for id in xrange(num):
instance_with_id = '%s#%d' % (instance, id)
counter_dict[instance_with_id] = {}
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'ID Process'))
counter_dict[instance_with_id]['proc_id'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, '% Processor Time'))
counter_dict[instance_with_id]['cpu_usert'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Elapsed Time'))
counter_dict[instance_with_id]['cpu_tm_ss'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Page Faults/sec'))
counter_dict[instance_with_id]['pf'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Priority Base'))
counter_dict[instance_with_id]['prit_rnk'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Thread Count'))
counter_dict[instance_with_id]['thd_cnt'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Private Bytes'))
counter_dict[instance_with_id]['vir_mem_byt_cnt'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Creating Process ID'))
counter_dict[instance_with_id]['parent_pid'] = win32pdh.AddCounter(hq, path)
path = win32pdh.MakeCounterPath((None, 'Process', instance, None, id, 'Handle Count'))
counter_dict[instance_with_id]['svc_tm'] = win32pdh.AddCounter(hq, path)
scheduler.add_job(query, 'cron', minute='*/1', second='0')
scheduler.start()
win32pdh.CloseQuery(hq)
def close(self):
if self.hc:
try:
win32pdh.RemoveCounter(self.hc)
except:
pass
self.hc = None
if self.hq:
try:
win32pdh.CloseQuery(self.hq)
except:
pass
self.hq = None
def CleanupCounter(hq, hc):
"""Cleans up a counter after it is no longer needed.
Args:
hq: handle to the query for the counter
hc: handle to the counter
"""
try:
win32pdh.RemoveCounter(hc)
win32pdh.CloseQuery(hq)
except:
# Sometimes we get unexpected win32 errors. Not much can be done.
pass
def get_counter_val(counter_path, *args, **kwargs):
try:
sleep = float(kwargs['sleep'][0])
except (KeyError, TypeError, IndexError):
sleep = 0
try:
factor = int(kwargs['factor'][0])
except (KeyError, TypeError, IndexError):
factor = 0
# Allow using PDH_FMT_LONG for certain counter types if it is required
fmt = win32pdh.PDH_FMT_DOUBLE
try:
fmt = int(kwargs['format'][0])
if fmt == 1:
fmt = win32pdh.PDH_FMT_LONG
except (KeyError, TypeError, IndexError):
pass
query = win32pdh.OpenQuery()
try:
counter = win32pdh.AddCounter(query, counter_path)
try:
if factor != 0:
# Multiply results by 10^(factor) to get around limitations on threshold types
win32pdh.SetCounterScaleFactor(counter, factor)
win32pdh.CollectQueryData(query)
if sleep != 0:
time.sleep(sleep)
win32pdh.CollectQueryData(query)
_, _, _, _, _, _, _, info, _ = win32pdh.GetCounterInfo(
counter, False)
_, value = win32pdh.GetFormattedCounterValue(counter, fmt)
finally:
win32pdh.RemoveCounter(counter)
finally:
win32pdh.CloseQuery(query)
unit = info[-1]
if not isinstance(value, (int, long)):
value = round(value, 2)
return [value, unit]
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 FindChildrenOf(self, parentid):
childPids = []
object = "Process"
items, instances = win32pdh.EnumObjectItems(
None, None, object, win32pdh.PERF_DETAIL_WIZARD)
instance_dict = {}
for instance in instances:
if instance in instance_dict:
instance_dict[instance] += 1
else:
instance_dict[instance] = 0
for instance, max_instances in instance_dict.items():
for inum in range(max_instances + 1):
hq = win32pdh.OpenQuery()
try:
hcs = []
path = win32pdh.MakeCounterPath(
(None, object, instance, None, inum, "ID Process"))
hcs.append(win32pdh.AddCounter(hq, path))
path = win32pdh.MakeCounterPath(
(None, object, instance, None, inum,
"Creating Process ID"))
hcs.append(win32pdh.AddCounter(hq, path))
try:
# If the process goes away unexpectedly this call will fail
win32pdh.CollectQueryData(hq)
type, pid = win32pdh.GetFormattedCounterValue(
hcs[0], win32pdh.PDH_FMT_LONG)
type, ppid = win32pdh.GetFormattedCounterValue(
hcs[1], win32pdh.PDH_FMT_LONG)
if int(ppid) == parentid:
childPids.append(int(pid))
except:
pass
finally:
win32pdh.CloseQuery(hq)
return childPids
def AddCounter(counter_name):
"""Adds a pdh query and counter of the given name to Firefox.
Args: counter_name: The name of the counter to add, i.e. "% Processor Time"
Returns:
(query handle, counter handle)
"""
path = win32pdh.MakeCounterPath(
(None, 'process', 'firefox', None, -1, counter_name))
hq = win32pdh.OpenQuery()
try:
hc = win32pdh.AddCounter(hq, path)
except:
win32pdh.CloseQuery(hq)
return hq, hc
def close(self):
for hc in self.hcs:
if not hc:
continue
try:
win32pdh.RemoveCounter(hc)
except:
pass
self.hcs = []
for hq in self.hqs:
if not hq:
continue
try:
win32pdh.CloseQuery(hq)
except:
pass
self.hqs = []
