mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-22 10:30:13 +00:00
269 lines
7.6 KiB
Python
269 lines
7.6 KiB
Python
#
|
|
# Copyright (C) 2004-2007 Swedish Institute of Computer Science.
|
|
#
|
|
# Please refer to the file named LICENSE in the same directory as this
|
|
# file for licensing information.
|
|
#
|
|
|
|
|
|
# $Id: linux.py,v 1.1 2007/08/21 14:41:01 fros4943 Exp $
|
|
|
|
import errno
|
|
import glob
|
|
import os
|
|
import re
|
|
import signal
|
|
import string
|
|
import time
|
|
|
|
import chakana.command
|
|
import chakana.error
|
|
import chakana.utils
|
|
|
|
from debug import *
|
|
|
|
def numProcessors(physical = 0, cpuInfo = None):
|
|
return Host().CpuInfo(cpuInfo).count(physical = physical)
|
|
|
|
class CpuInfo:
|
|
"Parser for /proc/cpuinfo."
|
|
def __init__(self, cpuInfo = None):
|
|
if cpuInfo is None:
|
|
cpuInfo = chakana.utils.readFile("/proc/cpuinfo")
|
|
self.__values = [map(string.strip, l.split(":"))
|
|
for l in cpuInfo.splitlines()]
|
|
|
|
def values(self):
|
|
return self.__values
|
|
|
|
def find(self, name):
|
|
debug(Debug3, "Looking for " + name + " in cpuinfo:")
|
|
ret = [val[1] for val in self.values() if val[0] == name]
|
|
debug(Debug3, repr(ret))
|
|
return ret
|
|
|
|
class IfconfigInfo:
|
|
"Parser for ifconfig output."
|
|
def __init__(self, ifconfigOutput = None):
|
|
if ifconfigOutput is None:
|
|
self._ifconfigOutput = chakana.command.output("/sbin/ifconfig")
|
|
else:
|
|
self._ifconfigOutput = ifconfigOutput
|
|
|
|
def interfaces(self):
|
|
return map(InterfaceInfo,
|
|
re.compile("^\\w+", re.M).findall(self._ifconfigOutput))
|
|
|
|
class InterfaceInfo:
|
|
"Parser for ifconfig output for a single interface."
|
|
def __init__(self, interface = None, ifconfigOutput = None):
|
|
if interface is None:
|
|
self._interface = chakana.command.output("/sbin/ifconfig").split()[0]
|
|
else:
|
|
self._interface = interface
|
|
if ifconfigOutput is None:
|
|
self._ifconfigOutput = chakana.command.output("/sbin/ifconfig " +
|
|
self._interface)
|
|
else:
|
|
self._ifconfigOutput = ifconfigOutput
|
|
|
|
def name(self):
|
|
return self._ifconfigOutput.split()[0]
|
|
|
|
def address(self):
|
|
match = re.search("inet addr:((\d{1,3}\.){3}\d{1,3})",
|
|
self._ifconfigOutput)
|
|
if match:
|
|
return match.group(1)
|
|
else:
|
|
return None
|
|
|
|
__str__ = name
|
|
|
|
class MemInfo(dict):
|
|
"Parser for /proc/meminfo"
|
|
def __init__(self, memInfo = None):
|
|
if memInfo is None:
|
|
memInfo = chakana.utils.readFile("/proc/meminfo")
|
|
for line in memInfo.splitlines():
|
|
if len(line.split(":")) == 2:
|
|
key, value = line.split(":")
|
|
if len(value.strip().split()) <= 2:
|
|
if len(value.strip().split()) == 2:
|
|
unit = {"KB" : 1024, "MB" : 1024 * 1024,
|
|
"GB" : 1024 * 1024 * 1024 }[value.split()[-1].upper()]
|
|
else:
|
|
unit = 1
|
|
self[key] = long(value.strip().split()[0]) * unit
|
|
|
|
class UnameInfo:
|
|
"Parser for output from uname -a"
|
|
def __init__(self, unameInfo = None):
|
|
if unameInfo is None:
|
|
unameInfo = chakana.command.output("uname -a")
|
|
self._unameInfo = unameInfo.split()
|
|
|
|
def __getitem__(self, i):
|
|
return self._unameInfo[i]
|
|
|
|
def __len__(self):
|
|
return len(self._unameInfo)
|
|
|
|
def __getattr__(self, attr):
|
|
ret = self[self.indexMap()[attr]]
|
|
if (attr == "architecture") and \
|
|
(re.match(r"(.*intel|i[0-9]86)", ret, re.I)):
|
|
# Work around bogus uname output from e.g. Gentoo
|
|
return "i386"
|
|
else:
|
|
return ret
|
|
|
|
def smp(self):
|
|
return "SMP" in self._unameInfo
|
|
|
|
def indexMap(self):
|
|
return {
|
|
"os" : 0,
|
|
"host" : 1,
|
|
"version" : 2,
|
|
"architecture" : -2,
|
|
}
|
|
|
|
def __str__(self):
|
|
return repr(dict([(attr, getattr(self, attr))
|
|
for attr in self.indexMap()]))
|
|
|
|
def __repr__(self):
|
|
return repr(self._unameInfo)
|
|
|
|
class X86:
|
|
class CpuInfo(CpuInfo):
|
|
def count(self, physical = 0):
|
|
logical = len(self.find("processor"))
|
|
if physical:
|
|
siblings = self.find("siblings")
|
|
if len(siblings) > 0:
|
|
return logical / int(siblings[0])
|
|
return logical
|
|
|
|
def type(self, num = 0):
|
|
return re.match(r"Intel(\(R\))? (.*) processor [\d]+MHz",
|
|
self.find("model name")[num]).group(2)
|
|
|
|
class X86_64(X86):
|
|
pass
|
|
|
|
class Sparc:
|
|
class CpuInfo(CpuInfo):
|
|
def count(self):
|
|
return int(self.find("ncpus active")[0])
|
|
|
|
def type(self, num = 0):
|
|
return " ".join(self.find("cpu")[num].split()[1:3])
|
|
|
|
class UnameInfo(UnameInfo):
|
|
pass
|
|
|
|
def freeSpace(path):
|
|
"Return available disk space on device corresponding to path."
|
|
# If the device name is long, df may split the relevant line, so
|
|
# count lines and words from end.
|
|
return long(
|
|
chakana.command.output("df -k " + path).splitlines()[-1].split()[-3]) * 1024
|
|
|
|
def macAddresses():
|
|
"Return list of mac addresses for all network interfaces."
|
|
return re.findall('..:..:..:..:..:..', os.popen(
|
|
'/sbin/ifconfig -a | grep HWaddr', 'r').read().lower())
|
|
|
|
class Process:
|
|
"""Representation of a running process."""
|
|
|
|
def __init__(self, pid):
|
|
self._pid = pid
|
|
|
|
def pid(self):
|
|
return self._pid
|
|
|
|
def attribute(self, name):
|
|
try:
|
|
lines = chakana.utils.readFile("/proc/" + str(self._pid) +
|
|
"/status").splitlines()
|
|
for line in lines:
|
|
(key, value) = line.split(":", 1)
|
|
if key.strip().lower() == name.lower():
|
|
return value.strip()
|
|
except EnvironmentError, err:
|
|
if err.errno == errno.ENOENT:
|
|
raise chakana.error.errnoError(errno.ESRCH)
|
|
raise
|
|
|
|
def name(self):
|
|
return self.attribute("name")
|
|
|
|
def parent(self):
|
|
return Process(int(self.attribute("ppid")))
|
|
|
|
def children(self):
|
|
ret = []
|
|
for proc in self.all():
|
|
try:
|
|
if proc.parent().pid() == self.pid():
|
|
ret.append(proc)
|
|
except EnvironmentError, err:
|
|
if err.errno != errno.ESRCH:
|
|
raise
|
|
return ret
|
|
|
|
def reallyKill(self, graceTime = 1, sigKillTime = 3, debugLevel = Event):
|
|
"""Really kill process after waiting for graceTime. Send SIGKILL after
|
|
sigKillTime."""
|
|
try:
|
|
debug(debugLevel, "Killing process " + str(self.pid()) +
|
|
" (" + str(self.name()) + ")")
|
|
os.kill(self.pid(), 0)
|
|
time.sleep(graceTime)
|
|
debug(debugLevel + 1, "kill -TERM " + str(self.pid()))
|
|
os.kill(self.pid(), signal.SIGTERM)
|
|
for tick in range(sigKillTime):
|
|
os.kill(self.pid(), 0)
|
|
debug(debugLevel + 1, "kill -KILL " + str(self.pid()))
|
|
os.kill(self.pid(), signal.SIGKILL)
|
|
time.sleep(graceTime)
|
|
if self.attribute("state")[0] != "Z":
|
|
debug(debugLevel, "Process refused to die: " + str(self.pid()) +
|
|
" (" + self.name() + ")")
|
|
except EnvironmentError, err:
|
|
if err.errno != errno.ESRCH:
|
|
raise
|
|
debug(debugLevel + 2, "Pid " + str(self.pid()) + " no longer exists")
|
|
|
|
def killAllBelow(self, debugLevel = Event, ** kwArgs):
|
|
"""Kill all processes below (but not including) a process. Start from
|
|
bottom of tree."""
|
|
debug(debugLevel, "Killing all processes below " + str(self.pid()) +
|
|
" (" + self.name() + ")")
|
|
children = self.children()
|
|
debug(debugLevel + 2, "Pid " + str(self.pid()) + " has " +
|
|
str(len(children)) + " children")
|
|
for child in children:
|
|
child.killAllBelow(debugLevel = debugLevel, ** kwArgs)
|
|
child.reallyKill(debugLevel = debugLevel, ** kwArgs)
|
|
|
|
def all(cls):
|
|
ret = []
|
|
for statusFile in glob.glob("/proc/*/status"):
|
|
try:
|
|
ret.append(cls(int(os.path.basename(os.path.dirname(statusFile)))))
|
|
except ValueError:
|
|
continue
|
|
return ret
|
|
all = classmethod(all)
|
|
|
|
def Host():
|
|
architecture = chakana.command.output("uname -m").strip()
|
|
if re.match("i[0-9]86", architecture):
|
|
return X86
|
|
elif architecture == "x86_64":
|
|
return X86_64
|