Python win32pdh.MakeCounterPath方法代碼示例

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
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 (dead link)
        # 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) 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
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) 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
def getinstpaths(self,object,counter,machine=None,objtype='Process',format = win32pdh.PDH_FMT_LONG):
		'''
		### Not an end-user function
		Calculate the paths for an instance object. Should alter
		to allow processing for lists of object-counter pairs.
		'''
		items, instances = win32pdh.EnumObjectItems(None,None,objtype, -1)
		# find out how many instances of this element we have...
		instances.sort()
		try:
			cur = instances.index(object)
		except ValueError:
			return [] # no instances of this object
		temp = [object]
		try:
			while instances[cur+1] == object:
				temp.append(object)
				cur = cur+1
		except IndexError: # if we went over the end
			pass
		paths = []
		for ind in range(len(temp)):
			# can this raise an error?
			paths.append(win32pdh.MakeCounterPath( (machine,'Process',object,None,ind,counter) ) )
		return paths # should also return the number of elements for naming purposes 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
def GetPerformanceAttributes(object, counter, instance = None, inum=-1,
                             format = win32pdh.PDH_FMT_LONG, 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://support.microsoft.com/default.aspx?scid=kb;EN-US;q262938
    # and 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 :)
    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) 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
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) 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
def _setup_query(self, which):
        inum = -1
        instance = None
        machine = None
        object = "Processor(%s)" % which
        counter = "% Processor Time"
        path = win32pdh.MakeCounterPath( (machine, object, instance,
                                          None, inum, counter) )
        hq = win32pdh.OpenQuery()
        self.hqs.append(hq)
        try:
            hc = win32pdh.AddCounter(hq, path)
            self.hcs.append(hc)
        except:
            self.close()
            raise 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
def rawaddcounter(self,object, counter, instance = None, inum=-1, machine=None):
		'''
		Adds a single counter path, without catching any exceptions.
		
		See addcounter for details.
		'''
		path = win32pdh.MakeCounterPath( (machine,object,instance, None, inum,counter) )
		self.paths.append(path) 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
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.iteritems():
        for inum in xrange(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]),
            for hc in hcs:
                type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
                print "%5d" % (val),
                win32pdh.RemoveCounter(hc)
            print
            win32pdh.CloseQuery(hq)

# NOTE: This BrowseCallback doesn't seem to work on Vista for markh.
# XXX - look at why!? 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
def getcpuload():
        cpupath = win32pdh.MakeCounterPath((None, 'Processor', '_Total', None, -1, '% Processor Time'))
        query = win32pdh.OpenQuery(None, 0)
        counter = win32pdh.AddCounter(query, cpupath, 0)
        win32pdh.CollectQueryData(query)
        time.sleep(0.1)
        win32pdh.CollectQueryData(query)
        status, value = win32pdh.GetFormattedCounterValue(counter, win32pdh.PDH_FMT_LONG)
        return float(value) / 100.0 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
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 

# 需要導入模塊: import win32pdh [as 別名]
# 或者: from win32pdh import MakeCounterPath [as 別名]
def _make_counter_path(self, machine_name, counter_name, instance_name, counters):
        """
        When handling non english versions, the counters don't work quite as documented.
        This is because strings like "Bytes Sent/sec" might appear multiple times in the
        english master, and might not have mappings for each index.

        Search each index, and make sure the requested counter name actually appears in
        the list of available counters; that's the counter we'll use.
        """
        path = ""
        if WinPDHCounter._use_en_counter_names:
            '''
            In this case, we don't have any translations.  Just attempt to make the
            counter path
            '''
            try:
                path = win32pdh.MakeCounterPath((machine_name, self._class_name, instance_name, None, 0, counter_name))
                self.logger.debug("Successfully created English-only path")
            except Exception as e:  # noqa: E722
                self.logger.warning("Unable to create English-only path %s", e)
                raise
            return path

        counter_name_index_list = WinPDHCounter.pdh_counter_dict[counter_name]

        for index in counter_name_index_list:
            c = win32pdh.LookupPerfNameByIndex(None, int(index))
            if c is None or len(c) == 0:
                self.logger.debug("Index %s not found, skipping", index)
                continue

            # check to see if this counter is in the list of counters for this class
            if c not in counters:
                try:
                    self.logger.debug("Index %s counter %s not in counter list", index, text_type(c))
                except:  # noqa: E722
                    # some unicode characters are not translatable here.  Don't fail just
                    # because we couldn't log
                    self.logger.debug("Index %s not in counter list", index)

                continue

            # see if we can create a counter
            try:
                path = win32pdh.MakeCounterPath((machine_name, self._class_name, instance_name, None, 0, c))
                break
            except:  # noqa: E722
                try:
                    self.logger.info("Unable to make path with counter %s, trying next available", text_type(c))
                except:  # noqa: E722
                    self.logger.info("Unable to make path with counter index %s, trying next available", index)
        return path