Mini Shell
#!/usr/libexec/platform-python
"""
Dool is a command line tool to monitor many aspects of your system: CPU,
Memory, Network, Load Average, etc. It also includes a robust plug-in
architecture to allow monitoring other system metrics.
"""
### 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.
### Forked by Scott Baker in 2019
### Copyright 2004-2019 Dag Wieers <dag@wieers.com>
from __future__ import absolute_import, division, generators, print_function
__metaclass__ = type
import fnmatch
import getopt
import getpass
import glob
import linecache
import math
import os
import re
import resource
import sched
import sys
import time
import signal
from collections.abc import Sequence
__version__ = '1.3.2'
theme = { 'default': '' }
pluginpath = [
os.path.expanduser('~/.dool/'), # home + /.dool/
os.path.abspath(os.path.dirname(sys.argv[0])) + '/plugins/', # binary path + /plugins/
'/usr/share/dool/',
'/usr/local/share/dool/',
]
# Global variable to match drives in /proc/
# This is a regexp filter to EXCLUDE partitions, so we only add stats for the main parent drive
# i.e. use stats for sda not sda1/sda7/etc.
# NVME drives are: nvmeXnXpX
DOOL_DISKFILTER = re.compile(r'^([hsv]d[a-z]+\d+|cciss/c\d+d\d+p\d+|dm-\d+|md\d+|mmcblk\d+p\d0|VxVM\d+|nvme\d+n\d+p\d+)$')
class Options:
def __init__(self, args):
self.args = args
self.bits = True
self.blackonwhite = False
self.count = -1
self.cpulist = None
self.debug = 0
self.delay = 1
self.devel = 0
self.disklist = []
self.diskset = {}
self.full = False
self.float = False
self.integer = False
self.intlist = None
self.netlist = None
self.swaplist = None
self.color = None
self.update = True
self.header = True
self.output = False
self.pidfile = False
self.profile = ''
self.use_ascii = False
self.plugin_params = {} # Not currently used
self.opt_params = {} # CLI arguments that *optionally* have a param
# See if any of the CLI arguments are "optional" and remove them
# getopt() doesn't support optional params, so we remove them so getopt()
# won't freak out. We store the optional params in self.opt_params
args = self.optional_params(args)
### Get all the plugins and their details
self.plugin_details = get_plugin_details()
plugin_opt_list = self.get_opt_list_from_details(self.plugin_details)
### List of plugins to show
self.plugins = []
### Implicit if no terminal is used
if not sys.stdout.isatty():
self.color = False
self.header = False
self.update = False
long_opts = [
'all' , 'all-plugins', 'ascii' , 'bits' , 'bw' , 'bytes' , 'black-on-white', 'color' ,
'color16' , 'defaults' , 'debug' , 'devel' , 'display', 'dstat' , 'filesystem' , 'float' ,
'full' , 'help' , 'integer' , 'list' , 'mods' , 'modules', 'more' , 'nocolor',
'noheaders', 'noupdate' , 'profile' , 'version', 'vmstat' ,
]
param_opts = [
'diskset=' , 'output=' , 'pidfile='
]
all_opts = (long_opts + param_opts + plugin_opt_list)
try:
opts, args = getopt.getopt(args, 'acdfghilmno:prstTvyC:D:I:M:N:S:V', all_opts)
except getopt.error as exc:
print('dool: %s, try dool -h for a list of all the options' % exc)
sys.exit(1)
default_plugins = [ 'cpu', 'disk', 'net', 'load' ]
plugin_defaults = 0
# Loop through the opt array and find the keys
opt_keys = []
for x in opts:
opt_keys.append(x[0])
# We default to outputting to the display, but this may get toggled later by --output
self.display = True
for opt, arg in opts:
if opt in ['-c']:
self.plugins.append('cpu')
elif opt in ['-C']:
self.cpulist = arg.split(',')
elif opt in ['-d']:
self.plugins.append('disk')
elif opt in ['-D']:
self.disklist = arg.split(',')
elif opt in ['--diskset']:
parts = arg.split(":", 1)
name = list_item_default(parts, 0, "Unknown")
members = list_item_default(parts, 1, "").split(",")
if (len(parts) < 2 or len(members) < 1):
print("Error parsing diskset...\n")
print("Format : diskset_name:dev1,dev2,dev3,etc...")
print("Example: --diskset os_drives:sda,sdb")
# We convert /dev/sda and symlinks to their raw device name that is
# found in /proc/diskstats
cleaned = []
for dev in members:
base = get_dev_name(dev)
if base:
cleaned.append(base)
if len(cleaned) == 0:
print('dool: diskset %s has no valid members' % name)
self.diskset[name] = cleaned
self.disklist.append(name)
elif opt in ['--dstat']:
self.bits = False
self.use_ascii = True
self.color = 16
# --dstat by itself so we load the old default plug-ins
if len(opts) == 1:
self.plugins.append('cpu')
self.plugins.append('disk')
self.plugins.append('net')
self.plugins.append('page')
self.plugins.append('sys')
elif opt in ['--filesystem']:
self.plugins.append('fs')
elif opt in ['-g']:
self.plugins.append('page')
elif opt in ['-i']:
self.plugins.append('int')
elif opt in ['-I']:
self.intlist = arg.split(',')
elif opt in ['-l']:
self.plugins.append('load')
elif opt in ['-m']:
self.plugins.append('mem')
elif opt in ['-M', '--mods', '--modules']:
print('WARNING: Option %s is deprecated, please use --%s instead' % (opt, ' --'.join(arg.split(','))), file=sys.stderr)
self.plugins += arg.split(',')
elif opt in ['-n']:
self.plugins.append('net')
elif opt in ['-N']:
self.netlist = arg.split(',')
elif opt in ['-p']:
self.plugins.append('proc')
elif opt in ['-r']:
self.plugins.append('io')
elif opt in ['-s']:
self.plugins.append('swap')
elif opt in ['-S']:
self.swaplist = arg.split(',')
elif opt in ['-t']:
self.plugins.append('time')
elif opt in ['-T']:
self.plugins.append('epoch')
elif opt in ['-y']:
self.plugins.append('sys')
elif opt in ['--defaults']:
self.plugins = default_plugins
plugin_defaults = 1
elif opt in ['--more']:
self.plugins += [ 'cpu', 'disk', 'net', 'mem', 'proc', 'load' ]
elif opt in ['-a', '--all']:
self.plugins += [ 'cpu', 'disk', 'net', 'page', 'mem', 'sys', 'proc', 'load' ]
elif opt in ['-v', '--vmstat']:
self.plugins += [ 'proc', 'mem', 'page', 'disk', 'sys', 'cpu' ]
elif opt in ['-f', '--full']:
self.full = True
elif opt in ['--all-plugins']:
self.plugins += plugin_opt_list
elif opt in ['--bytes']:
self.bits = False
elif opt in ['--bits']:
self.bits = True
elif opt in ['--ascii']:
self.use_ascii = True
elif opt in ['--bw', '--black-on-white', '--blackonwhite']:
self.blackonwhite = True
elif opt in ['--color']:
self.color = 256
self.update = True
elif opt in ['--color16']:
self.color = 16
self.update = True
elif opt in ['--debug']:
self.debug = self.debug + 1
elif opt in ['--float']:
self.float = True
elif opt in ['--integer']:
self.integer = True
elif opt in ['--list']:
show_plugins()
sys.exit(0)
elif opt in ['--nocolor']:
self.color = False
elif opt in ['--noheaders']:
self.header = False
elif opt in ['--noupdate']:
self.update = False
elif opt in ['-o', '--output']:
self.output = arg
self.display = False
elif opt in ['--display']:
self.display = True
elif opt in ['--pidfile']:
self.pidfile = arg
elif opt in ['--profile']:
self.profile = 'dool_profile.log'
elif opt in ['--devel']:
self.devel = 1
elif opt in ['-h', '--help']:
self.usage()
self.help()
sys.exit(0)
elif opt in ['-V', '--version']:
self.version()
sys.exit(0)
elif opt.startswith('--'):
plugin_name = opt[2:]
self.plugins.append(plugin_name)
self.plugin_params[plugin_name] = arg # Not currently used
else:
print('dool: option %s unknown to getopt, try dool -h for a list of all the options' % opt)
sys.exit(1)
# If --display is before --output we have to reset it here
if '--display' in opt_keys:
self.display = True
if self.float and self.integer:
print('dool: option --float and --integer are mutual exclusive, you can only force one')
sys.exit(1)
# If no plugins are specified we use the defaults
if not self.plugins:
self.plugins = default_plugins
plugin_defaults = 1
print("Using default plugins: " + ", ".join(self.plugins) + "")
# Append the 'time' plugin to the end for 'more' and 'all'
needs_time_added = ('time' not in self.plugins) and (("--more" in opt_keys) or ("--all" in opt_keys) or (plugin_defaults))
if needs_time_added:
self.plugins.append('time');
try:
if len(args) > 0: self.delay = int(args[0])
if len(args) > 1: self.count = int(args[1])
except:
print('dool: incorrect argument, try dool -h for the correct syntax')
sys.exit(1)
if self.delay <= 0:
print('dool: delay must be an integer, greater than zero')
sys.exit(1)
if self.debug:
print('Plugins: %s' % self.plugins)
# Loop through the args array and find any items that are optional. If we
# find an optional one, check the NEXT item. If the next item does NOT
# start with "--" it's a param for the current item.
#
# getopt() doesn't support optional params so we remove them here, and
# the plugins themselves are able to read the params manually from the
# op.opt_params dictionary
def optional_params(self, args):
optional_arguments = ["freespace"]
to_remove = []
# Loop through each of the args
for x in range(len(args)):
item = args[x]
# Remove leading "--"
item = re.sub(r'^--', '', item)
next_item = list_item_default(args, x + 1, "")
# If the item is one of the ones we flagged as optional
# check to see if it has optional params
if item in optional_arguments:
if not re.match(r"^--", next_item):
#print("Removing %s" % next_item)
to_remove.append(next_item)
self.opt_params[item] = next_item
# If we found optional params we remove them from the array
for x in to_remove:
args.remove(x)
return args
def get_opt_list_from_details(self, plugin_details):
plugin_names = list(plugin_details.keys())
plugin_names.sort()
builtin = []
external = []
for name in plugin_names:
path = plugin_details[name]['file'] # Path to plugin file
params = plugin_details[name]['params'] # Plugin needs CLI params
ptype = plugin_details[name]['type'] # builtin or exteral
if params:
param_str = "yes"
# For getopt we need to add the '=' to the end to indicate
# that we need a param
if ptype == 'builtin':
builtin.append(name + "=")
else:
external.append(name + "=")
else:
param_str = "no"
if ptype == 'builtin':
builtin.append(name)
else:
external.append(name)
#print("%15s = %s (params: %s)" % (name, path, param_str))
# For getopt() purposes the internal plugins have to come before the external
ret = builtin + external
return ret
def version(self):
print('Dool', __version__)
print('Written by Scott Baker <scott@perturb.org>')
print('Forked from Dstat written by Dag Wieers <dag@wieers.com>')
print('Homepage at https://github.com/scottchiefbaker/dool/')
print()
print('Platform %s/%s' % (os.name, sys.platform))
print('Kernel %s' % os.uname()[2])
print('Python %s' % sys.version)
print()
color = ""
if not get_term_color():
color = "no "
print('Terminal type: %s (%scolor support)' % (os.getenv('TERM'), color))
rows, cols = get_term_size()
print('Terminal size: %d lines, %d columns' % (rows, cols))
print()
print('Processors: %d' % getcpunr())
print('Pagesize: %d' % resource.getpagesize())
print('Clock ticks per secs: %d' % os.sysconf('SC_CLK_TCK'))
print()
global op
op = self
show_plugins()
def usage(self):
print('Usage: dool [options] [delay] [count]')
def help(self):
print('''\nVersatile tool for generating system resource statistics
Dool options:
-c, --cpu enable cpu stats
-C 0,3,total include cpu0, cpu3 and total
-d, --disk enable disk stats
-D total,hda include hda and total
--diskset name:sda,sdb group disks together for aggregate stats
-g, --page enable page stats
-i, --int enable interrupt stats
-I 5,eth2 include int5 and interrupt used by eth2
-l, --load enable load stats
-m, --mem enable memory stats
-n, --net enable network stats
-N eth1,total include eth1 and total
-p, --proc enable process stats
-r, --io enable io stats (I/O requests completed)
-s, --swap enable swap stats
-S swap1,total include swap1 and total
-t, --time enable time/date output
-T, --epoch enable time counter (seconds since epoch)
-y, --sys enable system stats
--aio enable aio stats
--fs, --filesystem enable fs stats
--ipc enable ipc stats
--lock enable lock stats
--raw enable raw stats
--socket enable socket stats
--tcp enable tcp stats
--udp enable udp stats
--unix enable unix stats
--vm enable vm stats
--vm-adv enable advanced vm stats
--zones enable zoneinfo stats
--list list all available plugins
--<plugin-name> enable external plugin by name (see --list)
--defaults equals -cdnlt
--more equals -cdnmplt
-a, --all equals -cdngmyplt
-f, --full automatically expand -C, -D, -I, -N and -S lists
-v, --vmstat equals -pmgdyc -D total
--bits force bits for values expressed in bytes
--bytes force bytes for output measurements
--float force float values on screen
--integer force integer values on screen
--bw, --black-on-white change colors for white background terminal
--color force 256 colors
--color16 force 16 colors
--nocolor disable colors
--noheaders disable repetitive headers
--noupdate disable intermediate updates
--output file write CSV output to file
--display output to the display (useful with --output)
--profile show profiling statistics when exiting dool
--ascii output table data in ascii instead of ANSI
delay is the delay in seconds between each update (default: 1)
count is the number of updates to display before exiting (default: unlimited)
''')
### START STATS DEFINITIONS ###
class dool:
vars = None
name = None
nick = None
type = 'f'
types = ()
width = 5
scale = 1024
scales = ()
cols = 0
struct = None
#val = {}
#set1 = {}
#set2 = {}
def prepare(self):
if callable(self.discover):
self.discover = self.discover()
if callable(self.vars):
self.vars = self.vars()
if not self.vars:
raise Exception('No counter objects to monitor')
if callable(self.name):
self.name = self.name()
if callable(self.nick):
self.nick = self.nick()
if not self.nick:
self.nick = self.vars
self.val = {}; self.set1 = {}; self.set2 = {}
if self.struct: ### Plugin API version 2
for name in self.vars + [ 'total', ]:
self.val[name] = self.struct
self.set1[name] = self.struct
self.set2[name] = {}
elif self.cols <= 0: ### Plugin API version 1
for name in self.vars:
self.val[name] = self.set1[name] = self.set2[name] = 0
else: ### Plugin API version 1
for name in self.vars + [ 'total', ]:
self.val[name] = list(range(self.cols))
self.set1[name] = list(range(self.cols))
self.set2[name] = list(range(self.cols))
for i in list(range(self.cols)):
self.val[name][i] = self.set1[name][i] = self.set2[name][i] = 0
# print(self.val)
def open(self, *filenames):
"Open stat file descriptor"
self.file = []
self.fd = []
for filename in filenames:
try:
fd = dopen(filename)
if fd:
self.file.append(filename)
self.fd.append(fd)
except:
pass
if not self.fd:
raise Exception('Cannot open file %s' % filename)
def readlines(self):
"Return lines from any file descriptor"
for fd in self.fd:
fd.seek(0)
for line in fd.readlines():
yield line
### Implemented linecache (for top-plugins) but slows down normal plugins
# for fd in self.fd:
# i = 1
# while True:
# line = linecache.getline(fd.name, i);
# if not line: break
# yield line
# i += 1
def splitline(self, sep=None):
for fd in self.fd:
fd.seek(0)
return fd.read().split(sep)
def splitlines(self, sep=None, replace=None):
"Return split lines from any file descriptor"
for fd in self.fd:
fd.seek(0)
for line in fd.readlines():
if replace and sep:
yield line.replace(replace, sep).split(sep)
elif replace:
yield line.replace(replace, ' ').split()
else:
yield line.split(sep)
# ### Implemented linecache (for top-plugins) but slows down normal plugins
# for fd in self.fd:
# if replace and sep:
# yield line.replace(replace, sep).split(sep)
# elif replace:
# yield line.replace(replace, ' ').split()
# else:
# yield line.split(sep)
# i += 1
def statwidth(self):
"Return complete stat width"
if self.cols:
return len(self.vars) * self.colwidth() + len(self.vars) - 1
else:
return len(self.nick) * self.colwidth() + len(self.nick) - 1
def colwidth(self):
"Return column width"
if isinstance(self.name, str):
return self.width
else:
return len(self.nick) * self.width + len(self.nick) - 1
def title(self):
ret = theme['title']
if isinstance(self.name, str):
width = self.statwidth()
return ret + self.name[0:width].center(width).replace(' ', char['dash']) + theme['default']
for i, name in enumerate(self.name):
width = self.colwidth()
ret = ret + name[0:width].center(width).replace(' ', char['dash'])
if i + 1 != len(self.vars):
if op.color:
ret = ret + theme['frame'] + char['dash'] + theme['title']
else:
ret = ret + char['space']
return ret
def subtitle(self):
ret = ''
# It's a string
if isinstance(self.name, str):
for i, nick in enumerate(self.nick):
ret += theme['subtitle'] + nick[0:self.width].center(self.width)
# If it's not the last one add a space between each item
if i + 1 != len(self.nick):
ret += ansi['reset'] + char['space'] + ansi['reset']
else:
ret += ansi['reset']
return ret
# It's a 'list'
else:
for i, name in enumerate(self.name):
for j, nick in enumerate(self.nick):
ret += theme['subtitle'] + nick[0:self.width].center(self.width)
# If it's not the last one
if j + 1 != len(self.nick):
ret = ret + ansi['reset'] + char['space'] + ansi['reset']
# If it's not the last one
if i + 1 != len(self.name):
ret += theme['subtitle'] + char['space'] + ansi['reset']
else:
ret += ansi['reset']
return ret
def csvtitle(self):
if isinstance(self.name, str):
return '"' + self.name + '"' + char['sep'] * (len(self.nick) - 1)
else:
ret = ''
for i, name in enumerate(self.name):
ret = ret + '"' + name + '"' + char['sep'] * (len(self.nick) - 1)
if i + 1 != len(self.name): ret = ret + char['sep']
return ret
def csvsubtitle(self):
ret = ''
if isinstance(self.name, str):
for i, nick in enumerate(self.nick):
ret = ret + '"' + nick + '"'
if i + 1 != len(self.nick): ret = ret + char['sep']
elif len(self.name) == 1:
for i, name in enumerate(self.name):
for j, nick in enumerate(self.nick):
ret = ret + '"' + nick + '"'
if j + 1 != len(self.nick): ret = ret + char['sep']
if i + 1 != len(self.name): ret = ret + char['sep']
else:
for i, name in enumerate(self.name):
for j, nick in enumerate(self.nick):
ret = ret + '"' + name + ':' + nick + '"'
if j + 1 != len(self.nick): ret = ret + char['sep']
if i + 1 != len(self.name): ret = ret + char['sep']
return ret
def check(self):
"Check if stat is applicable"
# if hasattr(self, 'fd') and not self.fd:
# raise Exception, 'File %s does not exist' % self.fd
if not self.vars:
raise Exception('No objects found, no stats available')
if not self.discover:
raise Exception('No objects discovered, no stats available')
if self.colwidth():
return True
raise Exception('Unknown problem, please report')
def discover(self, *objlist):
return True
def show(self):
"Display stat results"
line = ''
if hasattr(self, 'output'):
return cprint(self.output, self.type, self.width, self.scale)
for i, name in enumerate(self.vars):
if i < len(self.types):
ctype = self.types[i]
else:
ctype = self.type
if i < len(self.scales):
scale = self.scales[i]
else:
scale = self.scale
if isinstance(self.val[name], Sequence) and not isinstance(self.val[name], str):
line = line + cprintlist(self.val[name], ctype, self.width, scale)
sep = theme['subframe'] + char['colon'] + ansi['reset']
if i + 1 != len(self.vars):
line = line + sep
else:
### Make sure we don't show more values than we have nicknames
if i >= len(self.nick): break
line = line + cprint(self.val[name], ctype, self.width, scale)
sep = char['space']
if i + 1 != len(self.nick):
line = line + sep
return line
def showend(self, totlist, vislist):
if vislist and self is not vislist[-1]:
return theme['frame'] + char['pipe']
elif totlist != vislist:
return theme['frame'] + char['gt']
return ''
def showcsv(self):
def printcsv(var):
if var != round(var):
return '%.3f' % var
return '%d' % int(round(var))
line = ''
for i, name in enumerate(self.vars):
# What TYPE of variable is this. May be used for conversions later
if i < len(self.types):
ctype = self.types[i]
else:
ctype = self.type
if isinstance(self.val[name], list) or isinstance(self.val[name], tuple):
for j, val in enumerate(self.val[name]):
# If this is a bytes value and we have bits enabled we need to convert
if ctype == 'b' and op.bits:
val *= 8.0;
line = line + printcsv(val)
if j + 1 != len(self.val[name]):
line = line + char['sep']
elif isinstance(self.val[name], str):
line = line + self.val[name]
else:
line = line + printcsv(self.val[name])
if i + 1 != len(self.vars):
line = line + char['sep']
return line
def showcsvend(self, totlist, vislist):
if vislist and self is not vislist[-1]:
return char['sep']
elif totlist and self is not totlist[-1]:
return char['sep']
return ''
class dool_aio(dool):
def __init__(self):
self.name = 'async'
self.nick = ('#aio',)
self.vars = ('aio',)
self.type = 'd'
self.width = 5;
self.open('/proc/sys/fs/aio-nr')
def extract(self):
for l in self.splitlines():
if len(l) < 1: continue
self.val['aio'] = int(l[0])
class dool_cpu(dool):
def __init__(self):
self.nick = ( 'usr', 'sys', 'idl', 'wai', 'stl' )
self.type = 'p'
self.width = 3
self.scale = 34
self.open('/proc/stat')
self.cols = 5
def discover(self, *objlist):
ret = []
for l in self.splitlines():
if len(l) < 9 or l[0][0:3] != 'cpu': continue
ret.append(l[0][3:])
ret.sort()
for item in objlist: ret.append(item)
return ret
def vars(self):
ret = []
if op.cpulist and 'all' in op.cpulist:
varlist = []
cpu = 0
while cpu < cpunr:
varlist.append(str(cpu))
cpu = cpu + 1
# if len(varlist) > 2: varlist = varlist[0:2]
elif op.cpulist:
varlist = op.cpulist
else:
varlist = ('total',)
for name in varlist:
if name in self.discover + ['total']:
ret.append(name)
return ret
def name(self):
ret = []
for name in self.vars:
if name == 'total':
ret.append('total cpu usage')
else:
ret.append('cpu' + name + ' usage')
return ret
def extract(self):
for l in self.splitlines():
if len(l) < 9: continue
for name in self.vars:
if l[0] == 'cpu' + name or ( l[0] == 'cpu' and name == 'total' ):
self.set2[name] = ( int(l[1]) + int(l[2]) + int(l[6]) + int(l[7]), int(l[3]), int(l[4]), int(l[5]), int(l[8]) )
for name in self.vars:
for i in list(range(self.cols)):
if sum(self.set2[name]) > sum(self.set1[name]):
self.val[name][i] = 100.0 * (self.set2[name][i] - self.set1[name][i]) / (sum(self.set2[name]) - sum(self.set1[name]))
else:
self.val[name][i] = 0
# print("Error: tick problem detected, this should never happen !", file=sys.stderr)
if step == op.delay:
self.set1.update(self.set2)
class dool_cpu_use(dool_cpu):
def __init__(self):
self.name = 'per cpu usage'
self.type = 'p'
self.width = 3
self.scale = 34
self.open('/proc/stat')
self.cols = 7
if not op.cpulist:
self.vars = [ str(x) for x in list(range(cpunr)) ]
def extract(self):
for l in self.splitlines():
if len(l) < 9: continue
for name in self.vars:
if l[0] == 'cpu' + name or ( l[0] == 'cpu' and name == 'total' ):
self.set2[name] = ( int(l[1]) + int(l[2]), int(l[3]), int(l[4]), int(l[5]), int(l[6]), int(l[7]), int(l[8]) )
for name in self.vars:
if sum(self.set2[name]) > sum(self.set1[name]):
self.val[name] = 100.0 - 100.0 * (self.set2[name][2] - self.set1[name][2]) / (sum(self.set2[name]) - sum(self.set1[name]))
else:
self.val[name] = 0
# print("Error: tick problem detected, this should never happen !", file=sys.stderr)
if step == op.delay:
self.set1.update(self.set2)
class dool_cpu_adv(dool_cpu):
def __init__(self):
self.nick = ( 'usr', 'sys', 'idl', 'wai', 'hiq', 'siq', 'stl' )
self.type = 'p'
self.width = 3
self.scale = 34
self.open('/proc/stat')
self.cols = 7
def extract(self):
for l in self.splitlines():
if len(l) < 9: continue
for name in self.vars:
if l[0] == 'cpu' + name or ( l[0] == 'cpu' and name == 'total' ):
self.set2[name] = ( int(l[1]) + int(l[2]), int(l[3]), int(l[4]), int(l[5]), int(l[6]), int(l[7]), int(l[8]) )
for name in self.vars:
for i in list(range(self.cols)):
if sum(self.set2[name]) > sum(self.set1[name]):
self.val[name][i] = 100.0 * (self.set2[name][i] - self.set1[name][i]) / (sum(self.set2[name]) - sum(self.set1[name]))
else:
self.val[name][i] = 0
# print("Error: tick problem detected, this should never happen !", file=sys.stderr)
if step == op.delay:
self.set1.update(self.set2)
class dool_disk(dool):
def __init__(self):
self.nick = ('read', 'writ')
self.type = 'b'
self.cols = 2
self.open('/proc/diskstats')
def discover(self, *objlist):
ret = []
for l in self.splitlines():
if len(l) < 13: continue
if set(l[3:]) == {'0'}: continue
name = l[2]
ret.append(name)
for item in objlist: ret.append(item)
if not ret:
raise Exception("No suitable block devices found to monitor")
return ret
def vars(self):
ret = []
if op.disklist:
varlist = []
for x in op.disklist:
dev = get_dev_name(x)
varlist.append(dev)
elif not op.full:
varlist = ('total',)
else:
varlist = []
for name in self.discover:
if DOOL_DISKFILTER.match(name): continue
if name not in blockdevices(): continue
varlist.append(name)
# if len(varlist) > 2: varlist = varlist[0:2]
varlist.sort()
for name in varlist:
if name in self.discover + ['total'] or name in op.diskset:
ret.append(name)
return ret
def name(self):
ret = []
for name in self.vars:
# Shorten the device name to 5 chars
short = dev_short_name(name, 5)
full = "dsk/" + short
ret.append(full)
return ret
def extract(self):
for name in self.vars: self.set2[name] = (0, 0)
# Loop through each item in /proc/diskstats
for l in self.splitlines():
if len(l) < 13: continue
if l[5] == '0' and l[9] == '0': continue
if set(l[3:]) == {'0'}: continue
name = l[2]
if not DOOL_DISKFILTER.match(name):
devel_log("Adding disk stats for '%s' %d/%d to total" % (name, int(l[5]), int(l[9])))
self.set2['total'] = ( self.set2['total'][0] + int(l[5]), self.set2['total'][1] + int(l[9]) )
if name in self.vars and name != 'total':
self.set2[name] = ( self.set2[name][0] + int(l[5]), self.set2[name][1] + int(l[9]) )
# Process disksets
for diskset in self.vars:
if diskset in op.diskset:
for disk in op.diskset[diskset]:
if fnmatch.fnmatch(name, disk):
self.set2[diskset] = ( self.set2[diskset][0] + int(l[5]), self.set2[diskset][1] + int(l[9]) )
for name in self.set2:
self.val[name] = list(map(lambda x, y: (y - x) * 512.0 / elapsed, self.set1[name], self.set2[name]))
if step == op.delay:
self.set1.update(self.set2)
class dool_epoch(dool):
def __init__(self):
self.name = 'epoch'
self.vars = ('epoch',)
self.width = 10
self.scale = 0
# We append ms in debug mode so we widen this a bit
if op.debug:
self.width += 4
# This is the unixtime when this loop interation ran
def extract(self):
self.val['epoch'] = starttime
class dool_fs(dool):
def __init__(self):
self.name = 'filesystem'
self.vars = ('files', 'inodes')
self.type = 'd'
self.width = 6
self.scale = 1000
def extract(self):
for line in dopen('/proc/sys/fs/file-nr'):
l = line.split()
if len(l) < 1: continue
self.val['files'] = int(l[0])
for line in dopen('/proc/sys/fs/inode-nr'):
l = line.split()
if len(l) < 2: continue
self.val['inodes'] = int(l[0]) - int(l[1])
class dool_int(dool):
def __init__(self):
self.name = 'interrupts'
self.type = 'd'
self.width = 5
self.scale = 1000
self.open('/proc/stat')
self.intmap = self.intmap()
def intmap(self):
ret = {}
for line in dopen('/proc/interrupts'):
l = line.split()
if len(l) <= cpunr: continue
l1 = l[0].split(':')[0]
l2 = ' '.join(l[cpunr+2:]).split(',')
ret[l1] = l1
for name in l2:
ret[name.strip().lower()] = l1
return ret
def discover(self, *objlist):
ret = []
for l in self.splitlines():
if l[0] != 'intr': continue
for name, i in enumerate(l[2:]):
if int(i) > 10: ret.append(str(name))
return ret
# def check(self):
# if self.fd[0] and self.vars:
# self.fd[0].seek(0)
# for l in self.fd[0].splitlines():
# if l[0] != 'intr': continue
# return True
# return False
def vars(self):
ret = []
if op.intlist:
varlist = op.intlist
else:
varlist = self.discover
for name in varlist:
if name in ('0', '1', '2', '8', 'NMI', 'LOC', 'MIS', 'CPU0'):
varlist.remove(name)
if not op.full and len(varlist) > 3: varlist = varlist[-3:]
for name in varlist:
if name in self.discover + ['total',]:
ret.append(name)
elif name.lower() in self.intmap:
ret.append(self.intmap[name.lower()])
return ret
def extract(self):
for l in self.splitlines():
if not l or l[0] != 'intr': continue
for name in self.vars:
if name != 'total':
self.set2[name] = int(l[int(name) + 2])
self.set2['total'] = int(l[1])
for name in self.vars:
self.val[name] = (self.set2[name] - self.set1[name]) * 1.0 / elapsed
if step == op.delay:
self.set1.update(self.set2)
class dool_io(dool):
def __init__(self):
self.nick = ('read', 'writ')
self.type = 'f'
self.width = 5
self.scale = 1000
self.cols = 2
self.open('/proc/diskstats')
def discover(self, *objlist):
ret = []
for l in self.splitlines():
if len(l) < 13: continue
if set(l[3:]) == {'0'}: continue
name = l[2]
ret.append(name)
for item in objlist: ret.append(item)
if not ret:
raise Exception("No suitable block devices found to monitor")
return ret
def vars(self):
ret = []
if op.disklist:
varlist = op.disklist
elif not op.full:
varlist = ('total',)
else:
varlist = []
for name in self.discover:
if DOOL_DISKFILTER.match(name): continue
if name not in blockdevices(): continue
varlist.append(name)
# if len(varlist) > 2: varlist = varlist[0:2]
varlist.sort()
for name in varlist:
if name in self.discover + ['total'] or name in op.diskset:
ret.append(name)
return ret
def name(self):
return ['io/'+name for name in self.vars]
def extract(self):
for name in self.vars: self.set2[name] = (0, 0)
for l in self.splitlines():
if len(l) < 13: continue
if l[3] == '0' and l[7] == '0': continue
name = l[2]
if set(l[3:]) == {'0'}: continue
if not DOOL_DISKFILTER.match(name):
self.set2['total'] = ( self.set2['total'][0] + int(l[3]), self.set2['total'][1] + int(l[7]) )
if name in self.vars and name != 'total':
self.set2[name] = ( self.set2[name][0] + int(l[3]), self.set2[name][1] + int(l[7]) )
for diskset in self.vars:
if diskset in op.diskset:
for disk in op.diskset[diskset]:
if fnmatch.fnmatch(name, disk):
self.set2[diskset] = ( self.set2[diskset][0] + int(l[3]), self.set2[diskset][1] + int(l[7]) )
for name in self.set2:
self.val[name] = list(map(lambda x, y: (y - x) * 1.0 / elapsed, self.set1[name], self.set2[name]))
if step == op.delay:
self.set1.update(self.set2)
class dool_ipc(dool):
def __init__(self):
self.name = 'sysv ipc'
self.vars = ('msg', 'sem', 'shm')
self.type = 'd'
self.width = 3
self.scale = 10
def extract(self):
for name in self.vars:
self.val[name] = len(dopen('/proc/sysvipc/'+name).readlines()) - 1
class dool_load(dool):
def __init__(self):
self.name = 'load avg'
self.nick = ('1m', '5m', '15m')
self.vars = ('load1', 'load5', 'load15')
self.type = 'f'
self.width = 4
self.scale = 0.5
self.open('/proc/loadavg')
def extract(self):
for l in self.splitlines():
if len(l) < 3: continue
self.val['load1'] = float(l[0])
self.val['load5'] = float(l[1])
self.val['load15'] = float(l[2])
class dool_lock(dool):
def __init__(self):
self.name = 'file locks'
self.nick = ('pos', 'lck', 'rea', 'wri')
self.vars = ('posix', 'flock', 'read', 'write')
self.type = 'f'
self.width = 3
self.scale = 10
self.open('/proc/locks')
def extract(self):
for name in self.vars: self.val[name] = 0
for l in self.splitlines():
if len(l) < 4: continue
if l[1] == 'POSIX': self.val['posix'] += 1
elif l[1] == 'FLOCK': self.val['flock'] += 1
if l[3] == 'READ': self.val['read'] += 1
elif l[3] == 'WRITE': self.val['write'] += 1
class dool_mem(dool):
def __init__(self):
self.name = 'memory usage'
self.nick = ('used', 'free', 'cach', 'avai')
self.vars = ('MemUsed', 'MemFree', 'Cached', 'MemAvailable')
self.open('/proc/meminfo')
def extract(self):
adv_extract_vars = ('MemTotal', 'Shmem', 'SReclaimable')
adv_val={}
for l in self.splitlines():
if len(l) < 2: continue
name = l[0].split(':')[0]
if name in self.vars:
self.val[name] = int(l[1]) * 1024.0
if name in adv_extract_vars:
adv_val[name] = int(l[1]) * 1024.0
# Original math
#self.val['MemUsed'] = adv_val['MemTotal'] - self.val['MemFree'] - self.val['Buffers'] - self.val['Cached'] - adv_val['SReclaimable'] + adv_val['Shmem']
# New math that is closer to the `free` output
self.val['MemUsed'] = adv_val['MemTotal'] - self.val['MemFree'] - self.val['Cached'] - adv_val['SReclaimable']
class dool_mem_adv(dool_mem):
"""
Advanced memory usage
Displays memory usage similarly to the internal plugin but with added total, shared and reclaimable counters.
Additionally, shared memory is added and reclaimable memory is subtracted from the used memory counter.
"""
def __init__(self):
self.name = 'advanced memory usage'
self.nick = ('total', 'used', 'free', 'buff', 'cach', 'dirty', 'shmem', 'recl')
self.vars = ('MemTotal', 'MemUsed', 'MemFree', 'Buffers', 'Cached', 'Dirty', 'Shmem', 'SReclaimable')
self.open('/proc/meminfo')
class dool_net(dool):
def __init__(self):
self.nick = ('recv', 'send')
self.type = 'b'
self.totalfilter = re.compile(r'^(lo|bond\d+|face|.+\.\d+)$')
self.open('/proc/net/dev')
self.cols = 2
def discover(self, *objlist):
ret = []
for l in self.splitlines(replace=':'):
if len(l) < 17: continue
if l[2] == '0' and l[10] == '0': continue
name = l[0]
if name not in ('lo', 'face'):
ret.append(name)
ret.sort()
for item in objlist: ret.append(item)
return ret
def vars(self):
ret = []
if op.netlist:
varlist = op.netlist
elif not op.full:
varlist = ('total',)
else:
varlist = self.discover
# if len(varlist) > 2: varlist = varlist[0:2]
varlist.sort()
for name in varlist:
if name in self.discover + ['total', 'lo']:
ret.append(name)
if not ret:
raise Exception("No suitable network interfaces found to monitor")
return ret
def name(self):
return ['net/'+name for name in self.vars]
def extract(self):
self.set2['total'] = [0, 0]
for l in self.splitlines(replace=':'):
if len(l) < 17: continue
if l[2] == '0' and l[10] == '0': continue
name = l[0]
if name in self.vars :
self.set2[name] = ( int(l[1]), int(l[9]) )
if not self.totalfilter.match(name):
self.set2['total'] = ( self.set2['total'][0] + int(l[1]), self.set2['total'][1] + int(l[9]))
if update:
for name in self.set2:
self.val[name] = list(map(lambda x, y: (y - x) * 1.0 / elapsed, self.set1[name], self.set2[name]))
if self.val[name][0] < 0: self.val[name][0] += maxint + 1
if self.val[name][1] < 0: self.val[name][1] += maxint + 1
if step == op.delay:
self.set1.update(self.set2)
class dool_page(dool):
def __init__(self):
self.name = 'paging'
self.nick = ('in', 'out')
self.vars = ('pswpin', 'pswpout')
self.type = 'd'
self.open('/proc/vmstat')
def extract(self):
for l in self.splitlines():
if len(l) < 2: continue
name = l[0]
if name in self.vars:
self.set2[name] = int(l[1])
for name in self.vars:
self.val[name] = (self.set2[name] - self.set1[name]) * pagesize * 1.0 / elapsed
if step == op.delay:
self.set1.update(self.set2)
class dool_proc(dool):
def __init__(self):
self.name = 'procs'
self.nick = ('run', 'blk', 'new')
self.vars = ('procs_running', 'procs_blocked', 'processes')
self.type = 'f'
self.width = 3
self.scale = 10
self.open('/proc/stat')
def extract(self):
for l in self.splitlines():
if len(l) < 2: continue
name = l[0]
if name == 'processes':
self.val['processes'] = 0
self.set2[name] = int(l[1])
elif name == 'procs_running':
self.set2[name] = self.set2[name] + int(l[1]) - 1
elif name == 'procs_blocked':
self.set2[name] = self.set2[name] + int(l[1])
self.val['processes'] = (self.set2['processes'] - self.set1['processes']) * 1.0 / elapsed
for name in ('procs_running', 'procs_blocked'):
self.val[name] = self.set2[name] * 1.0
if step == op.delay:
self.set1.update(self.set2)
for name in ('procs_running', 'procs_blocked'):
self.set2[name] = 0
class dool_raw(dool):
def __init__(self):
self.name = 'raw'
self.nick = ('raw',)
self.vars = ('sockets',)
self.type = 'd'
self.width = 4
self.scale = 1000
self.open('/proc/net/raw')
def extract(self):
lines = -1
for line in self.readlines():
lines += 1
self.val['sockets'] = lines
### Cannot use len() on generator
# self.val['sockets'] = len(self.readlines()) - 1
class dool_socket(dool):
def __init__(self):
self.name = 'sockets'
self.type = 'd'
self.width = 4
self.scale = 1000
self.open('/proc/net/sockstat')
self.nick = ('tot', 'tcp', 'udp', 'raw', 'frg')
self.vars = ('sockets:', 'TCP:', 'UDP:', 'RAW:', 'FRAG:')
def extract(self):
for l in self.splitlines():
if len(l) < 3: continue
self.val[l[0]] = int(l[2])
self.val['other'] = self.val['sockets:'] - self.val['TCP:'] - self.val['UDP:'] - self.val['RAW:'] - self.val['FRAG:']
class dool_swap(dool):
def __init__(self):
self.nick = ('used', 'free')
self.type = 'd'
self.open('/proc/swaps')
def discover(self, *objlist):
ret = []
for l in self.splitlines():
if len(l) < 5: continue
if l[0] == 'Filename': continue
try:
int(l[2])
int(l[3])
except:
continue
# ret.append(improve(l[0]))
ret.append(l[0])
ret.sort()
for item in objlist: ret.append(item)
return ret
def vars(self):
ret = []
if op.swaplist:
varlist = op.swaplist
elif not op.full:
varlist = ('total',)
else:
varlist = self.discover
# if len(varlist) > 2: varlist = varlist[0:2]
varlist.sort()
for name in varlist:
if name in self.discover + ['total']:
ret.append(name)
if not ret:
raise Exception("No suitable swap devices found to monitor")
return ret
def name(self):
num_swaps = len(self.vars)
# If it's just ONE swap the name is simple: 'swap'
if (num_swaps == 1):
ret = "swap"
# If we have more than one we break them out
else:
ret = []
for dev in self.vars:
dev = basename(dev)
short_name = dev_short_name(dev, 4)
ret.append('swap/' + short_name)
return ret
def extract(self):
self.val['total'] = [0, 0]
for l in self.splitlines():
if len(l) < 5 or l[0] == 'Filename': continue
name = l[0]
self.val[name] = ( int(l[3]) * 1024.0, (int(l[2]) - int(l[3])) * 1024.0 )
self.val['total'] = ( self.val['total'][0] + self.val[name][0], self.val['total'][1] + self.val[name][1])
class dool_sys(dool):
def __init__(self):
self.name = 'system'
self.nick = ('int', 'csw')
self.vars = ('intr', 'ctxt')
self.type = 'd'
self.width = 5
self.scale = 1000
self.open('/proc/stat')
def extract(self):
for l in self.splitlines():
if len(l) < 2: continue
name = l[0]
if name in self.vars:
self.set2[name] = int(l[1])
for name in self.vars:
self.val[name] = (self.set2[name] - self.set1[name]) * 1.0 / elapsed
if step == op.delay:
self.set1.update(self.set2)
class dool_tcp(dool):
def __init__(self):
self.name = 'tcp sockets'
self.nick = ('lis', 'act', 'syn', 'tim', 'clo')
self.vars = ('listen', 'established', 'syn', 'wait', 'close')
self.type = 'd'
self.width = 4
self.scale = 1000
self.open('/proc/net/tcp', '/proc/net/tcp6')
def extract(self):
for name in self.vars: self.val[name] = 0
for l in self.splitlines():
if len(l) < 12: continue
### 01: established, 02: syn_sent, 03: syn_recv, 04: fin_wait1,
### 05: fin_wait2, 06: time_wait, 07: close, 08: close_wait,
### 09: last_ack, 0A: listen, 0B: closing
if l[3] in ('0A',): self.val['listen'] += 1
elif l[3] in ('01',): self.val['established'] += 1
elif l[3] in ('02', '03', '09',): self.val['syn'] += 1
elif l[3] in ('06',): self.val['wait'] += 1
elif l[3] in ('04', '05', '07', '08', '0B',): self.val['close'] += 1
class dool_time(dool):
def __init__(self):
self.name = 'system'
self.vars = ('time',)
self.type = 's'
self.scale = 0
self.timefmt = os.getenv('DOOL_TIMEFMT') or '%b-%d %H:%M:%S'
self.width = len(time.strftime(self.timefmt, time.localtime()))
# In debug we append ms, so we extend the width to accomodate
if op.debug:
self.width += 4
# starttime is the unixtime this loop started
def extract(self):
self.val['time'] = time.strftime(self.timefmt, time.localtime(starttime))
if op.debug:
self.val['time'] += ".%03d" % (round(starttime * 1000 % 1000))
class dool_udp(dool):
def __init__(self):
self.name = 'udp'
self.nick = ('lis', 'act')
self.vars = ('listen', 'established')
self.type = 'd'
self.width = 4
self.scale = 1000
self.open('/proc/net/udp', '/proc/net/udp6')
def extract(self):
for name in self.vars: self.val[name] = 0
for l in self.splitlines():
if l[3] == '07': self.val['listen'] += 1
elif l[3] == '01': self.val['established'] += 1
class dool_unix(dool):
def __init__(self):
self.name = 'unix sockets'
self.nick = ('dgm', 'str', 'lis', 'act')
self.vars = ('datagram', 'stream', 'listen', 'established')
self.type = 'd'
self.width = 4
self.scale = 1000
self.open('/proc/net/unix')
def extract(self):
for name in self.vars: self.val[name] = 0
for l in self.splitlines():
if l[4] == '0002': self.val['datagram'] += 1
elif l[4] == '0001':
self.val['stream'] += 1
if l[5] == '01': self.val['listen'] += 1
elif l[5] == '03': self.val['established'] += 1
class dool_vm(dool):
def __init__(self):
self.name = 'virtual memory'
self.nick = ('majpf', 'minpf', 'alloc', 'free')
### Page allocations should include all page zones, not just ZONE_NORMAL,
### but also ZONE_DMA, ZONE_HIGHMEM, ZONE_DMA32 (depending on architecture)
self.vars = ('pgmajfault', 'pgfault', 'pgalloc_*', 'pgfree')
self.type = 'd'
self.width = 5
self.scale = 1000
self.open('/proc/vmstat')
def extract(self):
for name in self.vars:
self.set2[name] = 0
for l in self.splitlines():
if len(l) < 2: continue
for name in self.vars:
if fnmatch.fnmatch(l[0], name):
self.set2[name] += int(l[1])
for name in self.vars:
self.val[name] = (self.set2[name] - self.set1[name]) * 1.0 / elapsed
if step == op.delay:
self.set1.update(self.set2)
class dool_vm_adv(dool_vm):
def __init__(self):
self.name = 'advanced virtual memory'
self.nick = ('steal', 'scanK', 'scanD', 'pgoru', 'astll')
self.vars = ('pgsteal_*', 'pgscan_kswapd_*', 'pgscan_direct_*', 'pageoutrun', 'allocstall')
self.type = 'd'
self.width = 5
self.scale = 1000
self.open('/proc/vmstat')
class dool_zones(dool):
def __init__(self):
self.name = 'zones memory'
# self.nick = ('dmaF', 'dmaH', 'd32F', 'd32H', 'movaF', 'movaH')
# self.vars = ('DMA_free', 'DMA_high', 'DMA32_free', 'DMA32_high', 'Movable_free', 'Movable_high')
self.nick = ('d32F', 'd32H', 'normF', 'normH')
self.vars = ('DMA32_free', 'DMA32_high', 'Normal_free', 'Normal_high')
self.type = 'd'
self.width = 5
self.scale = 1000
self.open('/proc/zoneinfo')
### Page allocations should include all page zones, not just ZONE_NORMAL,
### but also ZONE_DMA, ZONE_HIGHMEM, ZONE_DMA32 (depending on architecture)
def extract(self):
for l in self.splitlines():
if len(l) < 2: continue
if l[0].startswith('Node'):
zone = l[3]
found_high = 0
if l[0].startswith('pages'):
self.val[zone+'_free'] = int(l[2])
if l[0].startswith('high') and not found_high:
self.val[zone+'_high'] = int(l[1])
found_high = 1
### END STATS DEFINITIONS ###
###############################################################################
###############################################################################
###############################################################################
# Handle catching CTRL + C when we quit
def signal_handler(signum, frame):
#print("%s\n\nWe caught signal #%d!" % (fg_color(15), signum))
# If we're outputting to a file do some cleanup
if op.output:
outputfile.flush()
# If we're outputting to the display
if op.display:
# Print a couple of spaces to cover up the "^C" that gets printed
sys.stdout.write("\b\b ")
# Reset the ANSI colors just in case
sys.stdout.write(ansi['reset'])
sys.stdout.write("\n")
sys.stdout.flush()
sys.exit(0)
# Configure which signals to listen for
def init_signal_handling():
if os.name == 'nt':
signal.signal(signal.SIGBREAK, signal_handler)
elif os.name == 'posix':
signal.signal(signal.SIGHUP, signal_handler)
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
# Set the ANSI foreground color
def fg_color(num):
ret = "\033[38;5;" + str(num) + "m"
return ret
# Set the ANSI background color
def bg_color(num):
ret = "\033[48;5;" + str(num) + "m"
return ret
# Wrap some text in a color and then a reset
def text_color(num, mystr):
ret = "\033[38;5;" + str(num) + "m" + mystr + "\033[0m"
return ret
# Colors for a 256 color terminal
color = {
'black' : fg_color(0),
'white' : fg_color(15),
'red' : fg_color(9),
'darkred' : fg_color(88),
'blue' : fg_color(51),
'darkblue' : fg_color(39),
'green' : fg_color(83),
'darkgreen' : fg_color(28),
'yellow' : fg_color(227),
'darkyellow' : fg_color(214),
'gray' : fg_color(7),
'darkgray' : fg_color(239),
'magenta' : fg_color(13),
'darkmagenta': fg_color(5),
'cyan' : fg_color(14),
'darkcyan' : fg_color(5),
'blackbg' : '\033[40m',
'redbg' : '\033[41m',
'greenbg' : '\033[42m',
'yellowbg' : '\033[43m',
'bluebg' : '\033[44m',
'magentabg': '\033[45m',
'cyanbg' : '\033[46m',
'whitebg' : '\033[47m',
}
# Colors for a 16 color terminal
color16 = {
'black' : '\033[0;30m',
'white' : '\033[1;37m',
'red' : '\033[1;31m',
'darkred' : '\033[0;31m',
'blue' : '\033[1;34m',
'darkblue' : '\033[0;34m',
'green' : '\033[1;32m',
'darkgreen' : '\033[0;32m',
'yellow' : '\033[1;33m',
'darkyellow' : '\033[0;33m',
'gray' : '\033[0;37m',
'darkgray' : '\033[1;30m',
'magenta' : '\033[1;35m',
'darkmagenta': '\033[0;35m',
'cyan' : '\033[1;36m',
'darkcyan' : '\033[0;36m',
'blackbg' : '\033[40m',
'redbg' : '\033[41m',
'greenbg' : '\033[42m',
'yellowbg' : '\033[43m',
'bluebg' : '\033[44m',
'magentabg': '\033[45m',
'cyanbg' : '\033[46m',
'whitebg' : '\033[47m',
}
# Some ANSI presets to make the code easier to read
ansi = {
'reset' : '\033[0;0m',
'bold' : '\033[1m',
'reverse' : '\033[2m',
'underline': '\033[4m',
'clear' : '\033[2J',
'clearline' : '\033[2K',
'save' : '\033[s',
'restore' : '\033[u',
'save_all' : '\0337',
'restore_all' : '\0338',
'linewrap' : '\033[7h',
'nolinewrap' : '\033[7l',
'column_zero' : '\033[0G',
'up' : '\033[1A',
'down' : '\033[1B',
'right': '\033[1C',
'left' : '\033[1D',
'default': '\033[0;0m',
}
# Characters we use to draw the boxes
char = {
'pipe' : '|',
'colon' : ':',
'gt' : '>',
'space' : ' ',
'dash' : '-',
'plus' : '+',
'underscore' : '_',
'sep' : ',',
'title_sep' : '|',
}
# Unicode chars we use to override the defaults to get cleaner boxes
char_box_draw = {
'pipe' : u'\u2502',
'dash' : u'\u2504',
'title_sep' : u'\u252c',
'colon' : u'\u250a',
}
# Build a theme based on the color choice 16/256
def set_theme():
"Provide a set of colors to use"
global color
if op.color == 16:
color = color16
if op.blackonwhite:
theme = {
'title' : color['darkblue'],
'subtitle' : color['darkcyan'] + ansi['underline'],
'frame' : color['darkblue'],
'subframe' : color['darkcyan'],
'default' : ansi['default'],
'error' : color['white'] + color['redbg'],
'roundtrip' : color['darkblue'],
'debug' : color['darkred'],
'input' : color['darkgray'],
'done_lo' : color['black'],
'done_hi' : color['darkgray'],
'text_lo' : color['black'],
'text_hi' : color['darkgray'],
'unit_lo' : color['black'],
'unit_hi' : color['darkgray'],
'colors_lo' : (color['darkred'], color['darkmagenta'], color['darkgreen'], color['darkblue'],
color['darkcyan'], color['black'], color['red'], color['green']),
'colors_hi' : (color['red'], color['magenta'], color['green'], color['blue'],
color['cyan'], color['darkgray'], color['darkred'], color['darkgreen']),
}
else:
theme = {
'title' : color['darkblue'],
'subtitle' : color['blue'] + ansi['underline'],
'frame' : color['darkblue'],
'subframe' : color['blue'],
'default' : ansi['default'],
'error' : color['white'] + color['redbg'],
'roundtrip' : color['darkblue'],
'debug' : color['darkred'],
'input' : color['darkgray'],
'done_lo' : color['white'],
'done_hi' : color['gray'],
'text_lo' : color['gray'],
'text_hi' : color['darkgray'],
'unit_lo' : color['gray'],
'unit_hi' : color['darkgray'],
'colors_lo' : (color['red'], color['yellow'], color['green'], color['blue'],
color['cyan'], color['white'], color['darkred'], color['darkgreen']),
'colors_hi' : (color['darkred'], color['darkyellow'], color['darkgreen'], color['darkblue'],
color['darkcyan'], color['gray'], color['red'], color['green']),
}
return theme
def ticks():
"Return the number of 'ticks' since bootup"
try:
for line in open('/proc/uptime', 'r').readlines():
l = line.split()
if len(l) < 2: continue
return float(l[0])
except:
for line in dopen('/proc/stat').readlines():
l = line.split()
if len(l) < 2: continue
if l[0] == 'btime':
return time.time() - int(l[1])
def dopen(filename):
"Open a file for reuse, if already opened, return file descriptor"
global fds
if not os.path.exists(filename):
raise Exception('File %s does not exist' % filename)
if 'fds' not in globals():
fds = {}
if filename in fds:
fds[filename].seek(0)
else:
fds[filename] = open(filename, 'r')
return fds[filename]
def dclose(filename):
"Close an open file and remove file descriptor from list"
global fds
if not 'fds' in globals(): fds = {}
if filename in fds:
fds[filename].close()
del(fds[filename])
def dpopen(cmd):
"Open a pipe for reuse, if already opened, return pipes"
global pipes, select
import select
if 'pipes' not in globals(): pipes = {}
if cmd not in pipes:
try:
import subprocess
p = subprocess.Popen(cmd, shell=True, bufsize=0, close_fds=True,
stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
pipes[cmd] = (p.stdin, p.stdout, p.stderr)
except ImportError:
msg = 'Error opening cmd "%s"' % (cmd)
raise Exception(msg)
return pipes[cmd]
def readpipe(fileobj, tmout = 0.001):
"Read available data from pipe in a non-blocking fashion"
ret = ''
while not select.select([fileobj.fileno()], [], [], tmout)[0]:
pass
while select.select([fileobj.fileno()], [], [], tmout)[0]:
ret = ret + fileobj.read(1)
return ret.split('\n')
def greppipe(fileobj, str, tmout = 0.001):
"Grep available data from pipe in a non-blocking fashion"
ret = ''
while not select.select([fileobj.fileno()], [], [], tmout)[0]:
pass
while select.select([fileobj.fileno()], [], [], tmout)[0]:
character = fileobj.read(1)
if character != '\n':
ret = ret + character
elif ret.startswith(str):
return ret
else:
ret = ''
if op.debug:
raise Exception('Nothing found during greppipe data collection')
return None
def matchpipe(fileobj, string, tmout = 0.001):
"Match available data from pipe in a non-blocking fashion"
ret = ''
regexp = re.compile(string)
while not select.select([fileobj.fileno()], [], [], tmout)[0]:
pass
while select.select([fileobj.fileno()], [], [], tmout)[0]:
character = fileobj.read(1)
if character != '\n':
ret = ret + character
elif regexp.match(ret):
return ret
else:
ret = ''
if op.debug:
raise Exception('Nothing found during matchpipe data collection')
return None
# Test if a command is capable of being run
def cmd_test(cmd):
pipes = os.popen3(cmd, 't', 0)
for line in pipes[2].readlines():
raise Exception(line.strip())
# Read command output line by line
def cmd_readlines(cmd):
pipes = os.popen3(cmd, 't', 0)
for line in pipes[1].readlines():
yield line
# Read command output column by column
def cmd_splitlines(cmd, sep=None):
pipes = os.popen3(cmd, 't', 0)
for line in pipes[1].readlines():
yield line.split(sep)
def proc_readlines(filename):
"Return the lines of a file, one by one"
# for line in open(filename).readlines():
# yield line
### Implemented linecache (for top-plugins)
i = 1
while True:
line = linecache.getline(filename, i);
if not line: break
yield line
i += 1
def proc_splitlines(filename, sep=None):
"Return the splitted lines of a file, one by one"
# for line in open(filename).readlines():
# yield line.split(sep)
### Implemented linecache (for top-plugins)
i = 1
while True:
line = linecache.getline(filename, i);
if not line: break
yield line.split(sep)
i += 1
def proc_readline(filename):
"Return the first line of a file"
# return open(filename).read()
return linecache.getline(filename, 1)
def proc_splitline(filename, sep=None):
"Return the first line of a file splitted"
# return open(filename).read().split(sep)
return linecache.getline(filename, 1).split(sep)
### FIXME: Should we cache this within every step ?
def proc_pidlist():
"Return a list of process IDs"
dool_pid = str(os.getpid())
for pid in os.listdir('/proc/'):
try:
### Is it a pid ?
int(pid)
### Filter out dool
if pid == dool_pid: continue
yield pid
except ValueError:
continue
# Get a single SNMP OID
def snmpget(server, community, oid):
errorIndication, errorStatus, errorIndex, varBinds = cmdgen.CommandGenerator().getCmd(
cmdgen.CommunityData('test-agent', community, 0),
cmdgen.UdpTransportTarget((server, 161)),
oid
)
# print('%s -> ind: %s, stat: %s, idx: %s' % (oid, errorIndication, errorStatus, errorIndex))
for x in varBinds:
return str(x[1])
# Do a full SNMP walk
def snmpwalk(server, community, oid):
ret = []
errorIndication, errorStatus, errorIndex, varBindTable = cmdgen.CommandGenerator().nextCmd(
cmdgen.CommunityData('test-agent', community, 0),
cmdgen.UdpTransportTarget((server, 161)),
oid
)
# print('%s -> ind: %s, stat: %s, idx: %s' % (oid, errorIndication, errorStatus, errorIndex))
for x in varBindTable:
for y in x:
ret.append(str(y[1]))
return ret
def dchg(var, width, base):
"Convert decimal to string given base and length"
c = 0
while True:
if math.isinf(var):
ret = 'Inf'
break
ret = str(int(round(var)))
if len(ret) <= width:
break
var = var / base
c = c + 1
else:
c = -1
return ret, c
def fchg(var, width, base):
"Convert float to string given scale and length"
c = 0
while True:
if var == 0:
ret = str('0')
break
# ret = repr(round(var))
# ret = repr(int(round(var, maxlen)))
ret = str(int(round(var, width)))
if len(ret) <= width:
i = width - len(ret) - 1
while i > 0:
ret = ('%%.%df' % i) % var
if len(ret) <= width and ret != str(int(round(var, width))):
break
i = i - 1
else:
ret = str(int(round(var)))
break
var = var / base
c = c + 1
else:
c = -1
return ret, c
def tchg(var, width):
"Convert time string to given length"
ret = '%2dh%02d' % (var / 60, var % 60)
if len(ret) > width:
ret = '%2dh' % (var / 60)
if len(ret) > width:
ret = '%2dd' % (var / 60 / 24)
if len(ret) > width:
ret = '%2dw' % (var / 60 / 24 / 7)
return ret
# Global/static variables to speed up repeated calls to devel_log()
DEBUG_LAST = 0
DEBUG_FH = 0
# Write some debug data to a log if we enabled --devel
def devel_log(msg):
global DEBUG_LAST, DEBUG_FH
# If we didn't enable `--devel` on the CLI we don't do anything
if not op.devel:
return -1
# If the filehandle isn't already open, we open it
if not DEBUG_FH:
log_file = "/tmp/dool-devel.log"
print("Writing devel log: '%s'" % log_file)
DEBUG_FH = open(log_file, "w", 1)
xtime = time.time()
time_fmt = os.getenv('DOOL_TIMEFMT') or '%b-%d %H:%M:%S'
time_str = time.strftime(time_fmt, time.localtime())
# Append MS the ghetto way
time_ms = "." + str(round(xtime * 1000 % 1000))
time_str += time_ms
# Calculate the ms since the previous call
if DEBUG_LAST > 0:
time_diff = (xtime - DEBUG_LAST) * 1000 # Milliseconds
else:
time_diff = 0
log_line = "%s %4d ms: %s\n" % (time_str, time_diff, msg.strip())
DEBUG_FH.write(log_line);
# Save the time of this call for the next call
DEBUG_LAST = xtime
def cprintlist(varlist, ctype, width, scale):
"Return all columns color printed"
ret = sep = ''
for var in varlist:
ret = ret + sep + cprint(var, ctype, width, scale)
sep = char['space']
return ret
# var : data to output
# ctypes: f = float, s = string, b = bit/bytes, d = decimal, t = time, p = percent
# width : width in chars of the column
def cprint(var, ctype = 'f', width = 4, scale = 1000):
"Color print one column"
base = 1000
if scale == 1024:
base = 1024
### Use units when base is exact 1000 or 1024
unit = False
if scale in (1000, 1024) and width >= len(str(base)):
unit = True
width = width - 1
### If this is a negative value, return a dash
if ctype != 's' and var < 0:
if unit:
return theme['error'] + '-'.rjust(width) + char['space'] + theme['default']
else:
return theme['error'] + '-'.rjust(width) + theme['default']
# There is a big discussion of bits vs bytes and the various unit lables
# here: https://github.com/scottchiefbaker/dool/pull/34
# which may help explain why these are inconsistent case
if base != 1024:
# Miscellaneous value using base of 1000 (1, kilo-, mega-, giga-, ...)
units = (char['space'], 'k', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
elif op.bits and ctype in ('b', ):
# Bit value using base of 1000 (bit, kilobit, megabit, gigabit, ...)
units = ('b', 'k', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
base = scale = 1000
var = var * 8.0
else:
# Byte value using base of 1024 (byte, kibibyte, mebibyte, gibibyte, ...)
units = ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y')
# Interim update is faded out a bit
if step == op.delay:
colors = theme['colors_lo']
ctext = theme['text_lo']
cunit = theme['unit_lo']
cdone = theme['done_lo']
# Real update is bright color
else:
colors = theme['colors_hi']
ctext = theme['text_hi']
cunit = theme['unit_hi']
cdone = theme['done_hi']
### Convert value to string given base and field-length
if op.integer and ctype in ('b', 'd', 'p', 'f'):
ret, c = dchg(var, width, base)
elif op.float and ctype in ('b', 'd', 'p', 'f'):
ret, c = fchg(var, width, base)
elif ctype in ('b', 'd', 'p'):
ret, c = dchg(var, width, base)
elif ctype in ('f',):
ret, c = fchg(var, width, base)
elif ctype in ('s',):
ret, c = str(var), ctext
elif ctype in ('t',):
ret, c = tchg(var, width), ctext
else:
raise Exception('Type %s not known to dool.' % ctype)
### Set the counter color
if ret == '0':
color = cunit
elif scale <= 0:
color = ctext
elif ctype in ('p') and round(var) >= 100.0:
color = cdone
# elif type in ('p'):
# color = colors[int(round(var)/scale)%len(colors)]
elif scale not in (1000, 1024):
color = colors[int(var/scale)%len(colors)]
elif ctype in ('b', 'd', 'f'):
color = colors[c%len(colors)]
else:
color = ctext
### Justify value to left if string
if ctype in ('s',):
ret = color + ret.ljust(width)
else:
ret = color + ret.rjust(width)
### Add unit to output
if unit:
try:
if c != -1 and round(var) != 0:
ret += cunit + units[c]
else:
ret += char['space']
except OverflowError:
ret += char['space']
return ret
def header(totlist, vislist):
"Return the header for a set of module counters"
line = ''
### Process title
for o in vislist:
line += o.title()
if o is not vislist[-1]:
line += theme['frame'] + char['title_sep']
elif totlist != vislist:
line += theme['title'] + char['gt']
line += '\n'
### Process subtitle
for o in vislist:
line += o.subtitle()
if o is not vislist[-1]:
line += theme['frame'] + char['pipe']
elif totlist != vislist:
line += theme['title'] + char['gt']
return line + '\n'
def csv_header(totlist):
"Return the CVS header for a set of module counters"
line = ''
### Process title
for o in totlist:
line = line + o.csvtitle()
if o is not totlist[-1]:
line = line + char['sep']
line += '\n'
### Process subtitle
for o in totlist:
line = line + o.csvsubtitle()
if o is not totlist[-1]:
line = line + char['sep']
return line + '\n'
def info(level, msg):
"Output info message"
# if level <= op.verbose:
print(msg, file=sys.stderr)
def die(ret, msg):
"Print error and exit with errorcode"
print(msg, file=sys.stderr)
exit(ret)
# Quit in a clean way
def exit(ret):
sys.stdout.write(ansi['reset'])
sys.stdout.flush()
# Remove any pidfiles
if op.pidfile and os.path.exists(op.pidfile):
os.remove(op.pidfile)
if op.profile and os.path.exists(op.profile):
rows, cols = get_term_size()
import pstats
p = pstats.Stats(op.profile)
p.sort_stats('cumulative').print_stats(rows - 13)
elif op.profile:
print('No profiling data was found, maybe profiler was interrupted ?', file=sys.stderr)
sys.exit(ret)
def init_term():
"Initialise terminal"
global termsize
### Unbuffered sys.stdout
# sys.stdout = os.fdopen(1, 'w', 0)
termsize = None, 0
try:
global fcntl, struct, termios
import fcntl, struct, termios
termios.TIOCGWINSZ
except:
try:
curses.setupterm()
curses.tigetnum('lines'), curses.tigetnum('cols')
except:
pass
else:
termsize = None, 2
else:
termsize = None, 1
def get_term_size():
"Return the dynamic terminal geometry"
global termsize
# if not termsize[0] and not termsize[1]:
if not termsize[0]:
try:
if termsize[1] == 1:
s = struct.pack('HHHH', 0, 0, 0, 0)
x = fcntl.ioctl(sys.stdout.fileno(), termios.TIOCGWINSZ, s)
return struct.unpack('HHHH', x)[:2]
elif termsize[1] == 2:
curses.setupterm()
return curses.tigetnum('lines'), curses.tigetnum('cols')
else:
termsize = (int(os.environ['LINES']), int(os.environ['COLUMNS']))
except:
termsize = 25, 80
return termsize
def get_term_color():
"Return whether the system can use colors or not"
if sys.stdout.isatty():
try:
import curses
curses.setupterm()
colors = curses.tigetnum('colors')
if colors < 0:
return False
except ImportError:
print('Color support is disabled as python-curses is not installed.', file=sys.stderr)
return False
except:
print('Color support is disabled as curses does not find terminal "%s".' % os.getenv('TERM'), file=sys.stderr)
return False
if colors == 256:
return colors
return 16
return False
### We only want to filter out paths, not ksoftirqd/1
def basename(name):
"Perform basename on paths only"
if name[0] in ('/', '.'):
return os.path.basename(name)
return name
def getnamebypid(pid, name):
"Return the name of a process by taking best guesses and exclusion"
ret = None
try:
#### man proc tells me there should be nulls in here, but sometimes it seems like spaces (esp google chrome)
# cmdline = open('/proc/%s/cmdline' % pid).read().split(('\0', ' '))
cmdline = linecache.getline('/proc/%s/cmdline' % pid, 1).split('\0')
ret = basename(cmdline[0])
# Strip off any scripting language name
if ret in ('bash', 'csh', 'ksh', 'perl', 'python', 'ruby', 'sh'):
ret = basename(cmdline[1])
if ret.startswith('-'):
ret = basename(cmdline[-2])
if ret.startswith('-'): raise
is_vm = "kvm" in cmdline[0] or "qemu" in cmdline[0]
if is_vm:
# Proxmox : /usr/bin/kvm -id 210 -name TestDHCPServer,debug-threads=on ...
# LibVirt+KVM: /usr/libexec/qemu-kvm -name guest=test.ewheeler.net,debug-threads=on ...
cmd_str = " ".join(cmdline)
xmatch = re.search("-name (.+?),", cmd_str)
if xmatch:
ret = xmatch.group(1)
ret = ret.replace("guest=", "") # Hack to remove guest= for LibVirt+KVM
if not ret: raise
except:
ret = basename(name)
return ret
def getcpunr():
"Return the number of CPUs in the system"
# POSIX
try:
return os.sysconf("SC_NPROCESSORS_ONLN")
except ValueError:
pass
# Python 2.6+
try:
import multiprocessing
return multiprocessing.cpu_count()
except (ImportError, NotImplementedError):
pass
# Fallback 1
try:
cpunr = open('/proc/cpuinfo', 'r').read().count('processor\t:')
if cpunr > 0:
return cpunr
except IOError:
pass
# Fallback 2
try:
search = re.compile(r'^cpu\d+')
cpunr = 0
for line in dopen('/proc/stat').readlines():
if search.match(line):
cpunr += 1
if cpunr > 0:
return cpunr
except:
raise Exception("Problem finding number of CPUs in system.")
# Find all the block devices in /sys/block
def blockdevices():
### We have to replace '!' by '/' to support cciss!c0d0 type devices :-/
return [os.path.basename(filename).replace('!', '/') for filename in glob.glob('/sys/block/*')]
### FIXME: Add scsi support too and improve
def sysfs_dev(device):
"Convert sysfs device names into device names"
m = re.match(r'ide/host(\d)/bus(\d)/target(\d)/lun(\d)/disc', device)
if m:
l = m.groups()
# ide/host0/bus0/target0/lun0/disc -> 0 -> hda
# ide/host0/bus1/target0/lun0/disc -> 2 -> hdc
nr = int(l[1]) * 2 + int(l[3])
return 'hd' + chr(ord('a') + nr)
m = re.match(r'cciss/(c\dd\d)', device)
if m:
l = m.groups()
return l[0]
m = re.match('placeholder', device)
if m:
return 'sdX'
return device
def dev(maj, min):
"Convert major/minor pairs into device names"
ram = [1, ]
ide = [3, 22, 33, 34, 56, 57, 88, 89, 90, 91]
loop = [7, ]
scsi = [8, 65, 66, 67, 68, 69, 70, 71, 128, 129, 130, 131, 132, 133, 134, 135]
md = [9, ]
ida = [72, 73, 74, 75, 76, 77, 78, 79]
ubd = [98,]
cciss = [104,]
dm = [253,]
if maj in scsi:
disc = chr(ord('a') + scsi.index(maj) * 16 + min / 16)
part = min % 16
if not part: return 'sd%s' % disc
return 'sd%s%d' % (disc, part)
elif maj in ide:
disc = chr(ord('a') + ide.index(maj) * 2 + min / 64)
part = min % 64
if not part: return 'hd%s' % disc
return 'hd%s%d' % (disc, part)
elif maj in dm:
return 'dm-%d' % min
elif maj in md:
return 'md%d' % min
elif maj in loop:
return 'loop%d' % min
elif maj in ram:
return 'ram%d' % min
elif maj in cciss:
disc = cciss.index(maj) * 16 + min / 16
part = min % 16
if not part: return 'c0d%d' % disc
return 'c0d%dp%d' % (disc, part)
elif maj in ida:
cont = ida.index(maj)
disc = min / 16
part = min % 16
if not part: return 'ida%d-%d' % (cont, disc)
return 'ida%d-%d-%d' % (cont, disc, part)
elif maj in ubd:
disc = ubd.index(maj) * 16 + min / 16
part = min % 16
if not part: return 'ubd%d' % disc
return 'ubd%d-%d' % (disc, part)
else:
return 'dev%d-%d' % (maj, min)
# Gather all the plugins from their assorted directory locations
def get_plugin_details():
# These are the built-in plugins
remod = re.compile('dool_(.+)$')
ret = {}
for function_name in globals():
if function_name.startswith('dool_'):
plugin_name = remod.match(function_name).group(1)
name = plugin_name.replace('_', '-')
# If the function name is dool__ that means it needs params
needs_params = function_name.startswith("dool__")
obj = {}
obj['file'] = function_name
obj['type'] = 'builtin'
obj['params'] = needs_params
ret[name] = obj
# The external `.py` plugins
remod = re.compile('.+/dool__?(.+).py$')
external = []
for path in pluginpath:
for filename in glob.glob(path + '/dool_*.py'):
plugin_name = remod.match(filename).group(1)
name = plugin_name.replace('_', '-')
ret[name] = filename
# If the filename has 'dool__' in it that means it needs params
basename = os.path.basename(filename)
needs_params = basename.startswith("dool__")
obj = {}
obj['file'] = filename
obj['type'] = 'external'
obj['params'] = needs_params
ret[name] = obj
return ret
# For the --help print out a list of all the plugins and what/where they are
def show_plugins():
plugin_details = get_plugin_details()
plugin_names = list(plugin_details.keys())
plugin_names.sort()
builtin = []
external = []
for name in plugin_names:
ptype = plugin_details[name]['type']
params = plugin_details[name]['params']
filename = plugin_details[name]['file']
path = os.path.dirname(filename)
if ptype == 'builtin':
builtin.append(name)
else:
external.append(name)
# Print the builtin plugins
rows, cols = get_term_size()
print('internal:\n\t', end='')
cols2 = cols - 8
for mod in builtin:
cols2 = cols2 - len(mod) - 2
if cols2 <= 0:
print('\n\t', end='')
cols2 = cols - len(mod) - 10
if mod != builtin[-1]:
print(mod, end=',')
print(mod)
######################################################################
# Print the external plugins sorted by path
for path in pluginpath:
plugins = []
for name in external:
pfile = plugin_details[name]['file']
pdir = os.path.dirname(pfile) + "/"
#print("%s = %s" % (pdir,path))
# If this plugin is in the dir we're looking for we put it
# in this grouping
if (pdir == path):
plugins.append(name)
if not plugins: continue
plugins.sort()
cols2 = cols - 8
print('%s:' % os.path.abspath(path), end='\n\t')
for mod in plugins:
cols2 = cols2 - len(mod) - 2
if cols2 <= 0:
print(end='\n\t')
cols2 = cols - len(mod) - 10
if mod != plugins[-1]:
print(mod, end=',')
print(mod)
# The main ingress point of the whole thing
def main():
"Initialization of the program, terminal, internal structures"
global cpunr, hz, maxint, ownpid, pagesize
global ansi, theme, outputfile
global totlist, inittime
global update, missed
devel_log("Dool startup")
# Handle signals like CTRL+C
init_signal_handling()
cpunr = getcpunr()
hz = os.sysconf('SC_CLK_TCK')
maxint = float("inf")
ownpid = str(os.getpid())
pagesize = resource.getpagesize()
interval = 1
user = getpass.getuser()
hostname = os.uname()[1]
### Write term-title
if sys.stdout.isatty():
shell = os.getenv('XTERM_SHELL')
term = os.getenv('TERM')
if shell == '/bin/bash' and term and re.compile('(screen*|xterm*)').match(term):
sys.stdout.write('\033]0;(%s@%s) %s %s\007' % (user, hostname.split('.')[0], os.path.basename(sys.argv[0]), ' '.join(op.args)))
### Check terminal capabilities
if op.color == None:
op.color = get_term_color()
if not op.use_ascii:
for key in char_box_draw:
char[key] = char_box_draw[key]
### Prepare CSV output file (unbuffered)
if op.output:
if not os.path.exists(op.output):
outputfile = open(op.output, 'w')
outputfile.write('"dool %s CSV output"\n' % __version__)
header = ('"Author:","Scott Baker"','','','','"URL:"','"https://github.com/scottchiefbaker/dool/"\n')
outputfile.write(char['sep'].join(header))
else:
outputfile = open(op.output, 'a')
outputfile.write('\n\n')
header = ('"Host:"','"%s"' % hostname,'','','','"User:"','"%s"\n' % user)
outputfile.write(char['sep'].join(header))
run_cmd = " ".join(sys.argv)
header = ('"Cmdline:"','"' + run_cmd + '"','','','','"Date:"','"%s"\n' % time.strftime('%d %b %Y %H:%M:%S %Z', time.localtime()))
outputfile.write(char['sep'].join(header))
### Create pidfile
if op.pidfile:
try:
pidfile = open(op.pidfile, 'w')
pidfile.write(str(os.getpid()))
pidfile.close()
except Exception as e:
print('Failed to create pidfile %s: %s' % (op.pidfile, e), file=sys.stderr)
op.pidfile = False
### Empty ansi and theme database if no colors are requested
if not op.color:
for key in color:
color[key] = ''
for key in theme:
theme[key] = ''
# With this enabled --nocolor with a delay doesn't display correctly so
# I've disabled it for now
#for key in ansi:
#ansi[key] = ''
theme['colors_hi'] = (ansi['default'],)
theme['colors_lo'] = (ansi['default'],)
### Disable line-wrapping (does not work ?)
sys.stdout.write(ansi['nolinewrap'])
if not op.update:
interval = op.delay
### Build list of requested plugins
linewidth = 0
totlist = []
for plugin in op.plugins:
pluginfile = op.plugin_details[plugin]['file']
try:
if pluginfile not in globals():
exec(open(pluginfile).read())
exec('global plug; plug = dool_plugin(); del(dool_plugin)')
plug.filename = pluginfile
plug.check()
plug.prepare()
else:
exec('global plug; plug = %s()' % pluginfile)
plug.check()
plug.prepare()
except Exception as e:
if mod == mods[-1]:
print('Module %s failed to load. (%s)' % (pluginfile, e), file=sys.stderr)
elif op.debug:
print('Module %s failed to load, trying another. (%s)' % (pluginfile, e), file=sys.stderr)
if op.debug >= 3:
raise
continue
except:
print('Module %s caused unknown exception' % pluginfile, file=sys.stderr)
linewidth = linewidth + plug.statwidth() + 1
totlist.append(plug)
if not totlist:
die(8, 'None of the stats you selected are available.')
if op.output:
outputfile.write(csv_header(totlist))
scheduler = sched.scheduler(time.time, time.sleep)
inittime = time.time()
update = 0
missed = 0
# This the main loop that does all the output. It has two options:
# Loop X number of times where X is (delay * count) and stop
# or
# loop forever (op.count = -1 is how we say "forever")
while (update <= (op.delay * (op.count - 1))) or (op.count == -1):
# We are scheduling to run perform(update) every 1 second
scheduler.enterabs(inittime + update, 1, perform, (update,))
scheduler.run()
sys.stdout.flush()
# The time the next update will run
update = update + interval
linecache.clearcache()
devel_log("Loop #%d" % update)
print()
def perform(update):
"Inner loop that calculates counters and constructs output"
global totlist, oldvislist, vislist, showheader, rows, cols
global elapsed, totaltime, starttime
global loop, step, missed
starttime = time.time()
# The number of the current loop (not counting subdates)
loop = int((update - 1 + op.delay) / op.delay)
# The step (subupdate) number inside of the current loop
step = ((update - 1) % op.delay) + 1
### Get current time (may be different from schedule) for debugging
if not op.debug:
curwidth = 0
else:
if step == 1 or loop == 0:
totaltime = 0
curwidth = 8
### FIXME: This is temporary functionality, we should do this better
### If it takes longer than 500ms, than warn !
if loop != 0 and starttime - inittime - update > 1:
missed = missed + 1
return 0
### Initialise certain variables
if loop == 0:
elapsed = ticks()
rows, cols = 0, 0
vislist = []
oldvislist = []
showheader = True
else:
elapsed = step
### FIXME: Make this part smarter
if sys.stdout.isatty():
oldcols = cols
rows, cols = get_term_size()
### Trim object list to what is visible on screen
if oldcols != cols:
vislist = []
for o in totlist:
newwidth = curwidth + o.statwidth() + 1
if newwidth <= cols or ( vislist == totlist[:-1] and newwidth < cols ):
vislist.append(o)
curwidth = newwidth
### Check when to display the header
if op.header and rows >= 6:
if oldvislist != vislist:
showheader = True
elif not op.update and loop % (rows - 2) == 0:
showheader = True
elif op.update and step == 1 and loop % (rows - 1) == 0:
showheader = True
oldvislist = vislist
else:
vislist = totlist
# If we're on the last step of the loop it's definitive and is colored differently
if step == op.delay:
theme['default'] = ansi['reset']
# It's a step/subupdate
else:
theme['default'] = theme['text_lo']
### The first step is to show the definitive line if necessary
newline = ''
if op.update:
### If we are starting a whole new line we \n and reset
if step == 1 and update != 0:
newline = '\n' + ansi['reset'] + ansi['clearline']
### If we're in a delay we just go to column 0 and overwrite what's there
elif loop != 0:
newline = ansi['clearline'] + ansi['column_zero'];
### Display header
if showheader:
if loop == 0 and totlist != vislist:
print('Terminal width too small, trimming output.', file=sys.stderr)
showheader = False
sys.stdout.write(newline)
newline = header(totlist, vislist)
### Calculate all objects (visible, invisible)
line = newline
oline = ''
for o in totlist:
o.extract()
if o in vislist:
line = line + o.show() + o.showend(totlist, vislist)
if op.output and step == op.delay:
oline = oline + o.showcsv() + o.showcsvend(totlist, vislist)
### Put the output in the csv file
if op.output and step == op.delay:
outputfile.write(oline + '\n')
outputfile.flush()
### Print stats to display
if op.display:
sys.stdout.write(line + theme['input'])
### Print debugging output
if op.debug:
totaltime = totaltime + (time.time() - starttime) * 1000.0
if loop == 0:
totaltime = totaltime * step
if op.debug == 1:
sys.stdout.write('%s%6.2fms%s' % (theme['roundtrip'], totaltime / step, theme['input']))
elif op.debug == 2:
sys.stdout.write('%s%6.2f %s%d:%d%s' % (theme['roundtrip'], totaltime / step, theme['debug'], loop, step, theme['input']))
elif op.debug > 2:
sys.stdout.write('%s%6.2f %s%d:%d:%d%s' % (theme['roundtrip'], totaltime / step, theme['debug'], loop, step, update, theme['input']))
if missed > 0:
# sys.stdout.write(' '+theme['error']+'= warn =')
sys.stdout.write(' ' + theme['error'] + 'missed ' + str(missed+1) + ' ticks' + theme['input'])
missed = 0
# Get an item from a list, or a default value if the array isn't big enough (null coalesce)
def list_item_default(mylist, num, default):
if num > len(mylist) - 1:
return default
else:
return mylist[num]
# Krumo style debug printing
def k(obj, prefix = "DEBUG"):
import inspect
# https://stackoverflow.com/questions/6810999/how-to-determine-file-function-and-line-number
x = inspect.stack()[1]
info = inspect.getframeinfo(x[0])
line_str = "#" + str(info.lineno)
myfile = os.path.basename(__file__)
sys.stdout.write("%s %s @ %s: " % (prefix, text_color(228, myfile), text_color(117,line_str)))
print(obj)
# Krumo print and die
def kd(obj):
k(obj, "DIED")
sys.exit(99)
# Read in a full file (or optional only X bytes)
def file_slurp(filename, size = -1):
ret = ""
try:
fd = open(filename)
ret = fd.read(size)
finally:
fd.close()
return ret
# Make human readable device names that are shorter
#
# Example mappings:
# sda1 => sda1
# hda14 => hd14
# vda99 => vd99
# hdb => hdb
# nvme0n1 => nv01
# nvme1n1 => nv11
# md123 => m123
# md124 => m124
# md125 => m125
# mmcblk7p50 => m750
# VxVM4 => VxV4
# dm-5 => dm-5
def dev_short_name(xinput, xlen = 4):
# Too short just return the input
if len(xinput) <= xlen:
ret = xinput
# Break out the parts and build a new string
else:
# This gets all the a-z chars up to the first digit
# Then it gets any sequential digits followed by a
# non-digit separator, and any remaining digits
x = re.match(r"([a-zA-Z]+).*?(\d+)(.*\D.*?(\d+))?", xinput)
# If we match the regexp we build a shorter string
if x:
let = x.group(1)
num1 = x.group(2)
num2 = x.group(4) or ""
# Concate the two number parts together
num_part = num1 + num2
# Figure out how long they are and how many remaining
# chars we have for the letter part
remain = xlen - len(num_part)
# Get the first chars of letter
letter_part = let[0:remain]
# Prepend the letter part to meet the correct length
ret = letter_part + num_part
# Doesn't match the regexp pattern, not sure what it is
else:
ret = xinput
return ret
def get_dev_name(disk):
"Strip /dev/ and convert symbolic link"
ret = ''
# If it starts with '/dev/'
if disk[:5] == '/dev/':
# file or symlink
if os.path.exists(disk):
# e.g. /dev/disk/by-uuid/15e40cc5-85de-40ea-b8fb-cb3a2eaf872
if os.path.islink(disk):
target = os.readlink(disk)
# convert relative pathname to absolute
if target[0] != '/':
target = os.path.join(os.path.dirname(disk), target)
target = os.path.normpath(target)
print('dool: symlink %s -> %s' % (disk, target))
disk = target
# trim leading /dev/
ret = disk[5:]
else:
print('dool: %s does not exist' % disk)
else:
ret = disk
return ret
# Calculate the differences of two arrays
def array_diff(first, second):
second = set(second)
return [item for item in first if item not in second]
# Start performance profiling
def start_profiling():
import profile
# Remove any previous profile data
if os.path.exists(op.profile):
os.remove(op.profile)
profile.run('main()', op.profile)
# Main ingress point
def __main():
global op
global theme
try:
init_term()
# We use $DOOL_OPTS env variable and the CLI params to get all requested options
env_opts = os.getenv('DOOL_OPTS','').split()
cli_opts = sys.argv[1:]
op = Options(env_opts + cli_opts)
# Pick color depth theme we're going to use
theme = set_theme()
# If we're doing performance profiling
if op.profile:
start_profiling()
else:
main()
# This should handle catching CTRL + C and finalizing the output
except KeyboardInterrupt as e:
if op.update:
sys.stdout.write('\n')
# Exit cleanly
exit(0)
# Standard Python entry point
if __name__ == '__main__':
__main()
# vim: tabstop=4 shiftwidth=4 expandtab autoindent softtabstop=4
Zerion Mini Shell 1.0