/usr/share/pyshared/cpuset/main.py is in cpuset 1.5.6-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 | """Front end command line tool for Linux cpusets
"""
__copyright__ = """
Copyright (C) 2007-2010 Novell Inc.
Author: Alex Tsariounov <alext@novell.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
import sys, os
from optparse import OptionParser
from cpuset import config
import cpuset.commands
from cpuset.commands.common import CmdException
from cpuset.util import CpusetException
#
# The commands map
#
class Commands(dict):
"""Commands class. It performs on-demand module loading
"""
def canonical_cmd(self, key):
"""Return the canonical name for a possibly-shortenned
command name.
"""
candidates = [cmd for cmd in self.keys() if cmd.startswith(key)]
if not candidates:
log.error('Unknown command: %s', key)
log.error('Try "%s help" for a list of supported commands', prog)
sys.exit(1)
elif len(candidates) > 1:
log.error('Ambiguous command: %s', key)
log.error('Candidates are: %s', ', '.join(candidates))
sys.exit(1)
return candidates[0]
def __getitem__(self, key):
"""Return the command python module name based.
"""
global prog
cmd_mod = self.get(key) or self.get(self.canonical_cmd(key))
__import__('cpuset.commands.' + cmd_mod)
return getattr(cpuset.commands, cmd_mod)
commands = Commands({
'shield': 'shield',
'set': 'set',
# 'mem': 'mem',
'proc': 'proc',
})
supercommands = (
'shield',
)
def _print_helpstring(cmd):
print ' ' + cmd + ' ' * (12 - len(cmd)) + commands[cmd].help
def print_help():
print 'Usage: %s [global options] <command> [command options]' % os.path.basename(sys.argv[0])
print
print 'Global options:'
print ' -l/--log <fname> output debugging log in fname'
print ' -m/--machine print machine readable output'
print ' -x/--tohex <CPUSPEC> convert a CPUSPEC to hex'
print
print 'Generic commands:'
print ' help print the detailed command usage'
print ' version display version information'
print ' copyright display copyright information'
cmds = commands.keys()
cmds.sort()
print
print 'Super commands (high-level and multi-function):'
for cmd in supercommands:
_print_helpstring(cmd)
print
print 'Regular commands:'
for cmd in cmds:
if not cmd in supercommands:
_print_helpstring(cmd)
def main():
# handle pipes better
import signal
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
global prog
prog = os.path.basename(sys.argv[0])
global logfile
logfile = None
if len(sys.argv) < 2:
print >> sys.stderr, 'usage: %s <command>' % prog
print >> sys.stderr, \
' Try "%s --help" for a list of supported commands' % prog
sys.exit(1)
# configure logging
import logging
console = logging.StreamHandler(sys.stdout)
console.setLevel(logging.INFO)
formatter = logging.Formatter(prog + ': %(message)s')
console.setFormatter(formatter)
logging.getLogger('').addHandler(console)
global log
log = logging.getLogger('')
log.setLevel(logging.DEBUG)
try:
debug_level = int(os.environ['CSET_DEBUG_LEVEL'])
except KeyError:
debug_level = 0
except ValueError:
log.error('Invalid CSET_DEBUG_LEVEL environment variable')
sys.exit(1)
while True:
if len(sys.argv) == 1:
log.error('no arguments, nothing to do!')
sys.exit(2)
cmd = sys.argv[1]
if cmd in ['-l', '--log']:
if len(sys.argv) < 3:
log.critical('not enough arguments')
sys.exit(1)
# FIXME: very fragile
logfile = sys.argv[2]
#trace = logging.FileHandler('/var/log/cset.log', 'w')
trace = logging.FileHandler(logfile, 'a')
trace.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s %(name)-6s %(levelname)-8s %(message)s',
'%y%m%d-%H:%M:%S')
trace.setFormatter(formatter)
logging.getLogger('').addHandler(trace)
log.debug("---------- STARTING ----------")
from cpuset.version import version
log.debug('Cpuset (cset) %s' % version)
del(sys.argv[2])
del(sys.argv[1])
continue
if cmd in ['-h', '--help']:
if len(sys.argv) >= 3:
cmd = commands.canonical_cmd(sys.argv[2])
sys.argv[2] = '--help'
else:
print_help()
sys.exit(0)
if cmd == 'help':
if len(sys.argv) == 3 and not sys.argv[2] in ['-h', '--help']:
cmd = commands.canonical_cmd(sys.argv[2])
if not cmd in commands:
log.error('help: "%s" command unknown' % cmd)
sys.exit(1)
sys.argv[0] += ' %s' % cmd
command = commands[cmd]
parser = OptionParser(usage = command.usage,
option_list = command.options)
from pydoc import pager
pager(parser.format_help())
else:
print_help()
sys.exit(0)
if cmd in ['-v', '--version', 'version']:
from cpuset.version import version
log.info('Cpuset (cset) %s' % version)
sys.exit(0)
if cmd in ['-c', 'copyright', 'copying']:
log.info(__copyright__)
sys.exit(0)
if cmd in ['-m', '--machine']:
config.mread = True
del(sys.argv[1])
continue
if cmd in ['-x', '--tohex']:
if len(sys.argv) < 3:
log.critical('not enough arguments')
sys.exit(1)
cpuspec = sys.argv[2]
import cset
try:
print cset.cpuspec_to_hex(cpuspec)
except (ValueError, OSError, IOError, CpusetException, CmdException), err:
log.critical('**> ' + str(err))
if debug_level:
raise
else:
sys.exit(2)
sys.exit(0)
break
# re-build the command line arguments
cmd = commands.canonical_cmd(cmd)
sys.argv[0] += ' %s' % cmd
del(sys.argv[1])
log.debug('cmdline: ' + ' '.join(sys.argv))
try:
# importing the cset class creates the model
log.debug("creating cpuset model")
import cpuset.cset
command = commands[cmd]
usage = command.usage.split('\n')[0].strip()
parser = OptionParser(usage = usage, option_list = command.options)
options, args = parser.parse_args()
command.func(parser, options, args)
except (ValueError, OSError, IOError, CpusetException, CmdException), err:
log.critical('**> ' + str(err))
if str(err).find('Permission denied') != -1:
log.critical('insufficient permissions, you probably need to be root')
if str(err).find('invalid literal') != -1:
log.critical('option not understood')
if debug_level:
raise
else:
sys.exit(2)
except KeyboardInterrupt:
sys.exit(1)
sys.exit(0)
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