#

# Copyright (c) 2008 Google, Inc.

# Contributed by Arun Sharma <arun.sharma@google.com>

#

# Permission is hereby granted, free of charge, to any person obtaining a

# copy of this software and associated documentation files (the "Software"),

# to deal in the Software without restriction, including without limitation

# the rights to use, copy, modify, merge, publish, distribute, sublicense,

# and/or sell copies of the Software, and to permit persons to whom the

# Software is furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included

# in all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

# OTHER DEALINGS IN THE SOFTWARE.

#

import os

from perfmon import *

def public_members(self):

    s = "{ "

    for k, v in self.__dict__.iteritems():

      if not k[0] == '_':

        s += "%s : %s, " % (k, v)

    s += " }"

    return s

class System:

  # Use the os that gives us everything

  os = PFM_OS_PERF_EVENT_EXT

  def __init__(self):

    self.ncpus = os.sysconf('SC_NPROCESSORS_ONLN')

    self.pmus = []

    for i in range(0, PFM_PMU_MAX):

      try:

        pmu = PMU(i)

      except:

        pass

      else:

        self.pmus.append(pmu)

  def __repr__(self):

    return public_members(self)

class Event:

  def __init__(self, info):

    self.info = info

    self.__attrs = []

  def __repr__(self):

    return '\n' + public_members(self)

  def __parse_attrs(self):

    info = self.info

    for index in range(0, info.nattrs):

      self.__attrs.append(pfm_get_event_attr_info(info.idx, index,

                                                  System.os)[1])

  def attrs(self):

    if not self.__attrs:

      self.__parse_attrs()

    return self.__attrs

class PMU:

  def __init__(self, i):

    self.info = pfm_get_pmu_info(i)[1]

    self.__events = []

  def __parse_events(self):

    index = self.info.first_event

    while index != -1:

      self.__events.append(Event(pfm_get_event_info(index, System.os)[1]))

      index = pfm_get_event_next(index)

  def events(self):

    if not self.__events:

      self.__parse_events()

    return self.__events

  def __repr__(self):

    return public_members(self)

if __name__ == '__main__':

  from perfmon import *

  s = System()

  for pmu in s.pmus:

    info = pmu.info

    if info.flags.is_present:

      print info.name, info.size, info.nevents

      for e in pmu.events():

        print e.info.name, e.info.code

        for a in e.attrs():

	  print '\t\t', a.name, a.code