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# -*- coding: utf-8 -*-
#
# Copyright 2009 - 2013 Clark Williams <williams@redhat.com>
# Copyright 2009 - 2013 David Sommerseth <davids@redhat.com>
# Copyright 2012 - 2013 Raphaël Beamonte <raphael.beamonte@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# For the avoidance of doubt the "preferred form" of this code is one which
# is in an open unpatent encumbered format. Where cryptographic key signing
# forms part of the process of creating an executable the information
# including keys needed to generate an equivalently functional executable
# are deemed to be part of the source code.
#
import sys, subprocess, os, libxml2
from rteval.sysinfo.tools import getcmdpath
from rteval.Log import Log
class KernelInfo(object):
def __init__(self, logger = None):
self.__logger = logger
def __log(self, logtype, msg):
if self.__logger:
self.__logger.log(logtype, msg)
def kernel_get_kthreads(self):
policies = {'FF':'fifo', 'RR':'rrobin', 'TS':'other', '?':'unknown' }
ret_kthreads = {}
self.__log(Log.DEBUG, "getting kthread status")
cmd = '%s -eocommand,pid,policy,rtprio,comm' % getcmdpath('ps')
self.__log(Log.DEBUG, "cmd: %s" % cmd)
c = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
for p in c.stdout:
v = p.strip().split()
kcmd = v.pop(0)
try:
if int(v[0]) > 0 and kcmd.startswith('[') and kcmd.endswith(']'):
ret_kthreads[v[0]] = {'policy' : policies[v[1]],
'priority' : v[2], 'name' : v[3] }
except ValueError:
pass # Ignore lines which don't have a number in the first row
return ret_kthreads
def kernel_get_modules(self):
modlist = []
try:
fp = open('/proc/modules', 'r')
line = fp.readline()
while line:
mod = line.split()
modlist.append({"modname": mod[0],
"modsize": mod[1],
"numusers": mod[2],
"usedby": mod[3],
"modstate": mod[4]})
line = fp.readline()
fp.close()
except Exception, err:
raise err
return modlist
def kernel_get_clocksources(self):
'''get the available and curent clocksources for this kernel'''
path = '/sys/devices/system/clocksource/clocksource0'
if not os.path.exists(path):
raise RuntimeError, "Can't find clocksource path in /sys"
f = open (os.path.join (path, "current_clocksource"))
current_clocksource = f.readline().strip()
f = open (os.path.join (path, "available_clocksource"))
available_clocksource = f.readline().strip()
f.close()
return (current_clocksource, available_clocksource)
def MakeReport(self):
rep_n = libxml2.newNode("Kernel")
clksrc = self.kernel_get_clocksources()
clock_n = libxml2.newNode("ClockSource")
rep_n.addChild(clock_n)
for avail in clksrc[1].split():
avail_n = libxml2.newNode("source")
avail_n.addContent(avail)
if avail == clksrc[0]:
avail_n.newProp("current", "1")
clock_n.addChild(avail_n)
mods_n = libxml2.newNode("Modules")
rep_n.addChild(mods_n)
for mod in self.kernel_get_modules():
mod_n = libxml2.newNode("Module")
mods_n.addChild(mod_n)
mod_n.newProp("name", mod["modname"])
mod_n.newProp("size", str(mod["modsize"]))
mod_n.newProp("state", mod["modstate"])
mod_n.newProp("numusers", str(mod["numusers"]))
if mod["usedby"] != "-":
usedby_n = libxml2.newNode("usedby")
mod_n.addChild(usedby_n)
for ub in mod["usedby"].split(","):
if len(ub):
ub_n = libxml2.newNode("module")
ub_n.addContent(ub)
usedby_n.addChild(ub_n)
kthreads_n = libxml2.newNode("kthreads")
rep_n.addChild(kthreads_n)
kthreads = self.kernel_get_kthreads()
keys = kthreads.keys()
if len(keys):
keys.sort()
for pid in keys:
kthri_n = libxml2.newNode("thread")
kthreads_n.addChild(kthri_n)
kthri_n.addContent(kthreads[pid]["name"])
kthri_n.newProp("policy", kthreads[pid]["policy"])
kthri_n.newProp("priority", kthreads[pid]["priority"])
return rep_n
def unit_test(rootdir):
try:
from pprint import pprint
log = Log()
log.SetLogVerbosity(Log.INFO|Log.DEBUG)
ki = KernelInfo(logger=log)
pprint(ki.kernel_get_kthreads())
pprint(ki.kernel_get_modules())
pprint(ki.kernel_get_clocksources())
ki_xml = ki.MakeReport()
xml_d = libxml2.newDoc("1.0")
xml_d.setRootElement(ki_xml)
xml_d.saveFormatFileEnc("-", "UTF-8", 1)
except Exception, e:
import traceback
traceback.print_exc(file=sys.stdout)
print "** EXCEPTION %s", str(e)
return 1
if __name__ == '__main__':
unit_test(None)
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