/usr/lib/python3/dist-packages/glances/core/glances_monitor_list.py is in glances 2.1.1-1.
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 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2014 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Manage the monitor list."""
# Import system lib
import re
import subprocess
# Import Glances lib
from glances.core.glances_globals import glances_processes, logger
class MonitorList(object):
"""This class describes the optional monitored processes list.
The monitored list is a list of 'important' processes to monitor.
The list (Python list) is composed of items (Python dict).
An item is defined (dict keys):
* description: Description of the processes (max 16 chars)
* regex: regular expression of the processes to monitor
* command: (optional) shell command for extended stat
* countmin: (optional) minimal number of processes
* countmax: (optional) maximum number of processes
"""
# Maximum number of items in the list
__monitor_list_max_size = 10
# The list
__monitor_list = []
def __init__(self, config):
"""Init the monitoring list from the configuration file."""
self.config = config
if self.config is not None and self.config.has_section('monitor'):
# Process monitoring list
self.__set_monitor_list('monitor', 'list')
else:
self.__monitor_list = []
def __set_monitor_list(self, section, key):
"""Init the monitored processes list.
The list is defined in the Glances configuration file.
"""
for l in range(1, self.__monitor_list_max_size + 1):
value = {}
key = "list_" + str(l) + "_"
try:
description = self.config.get_raw_option(section, key + "description")
regex = self.config.get_raw_option(section, key + "regex")
command = self.config.get_raw_option(section, key + "command")
countmin = self.config.get_raw_option(section, key + "countmin")
countmax = self.config.get_raw_option(section, key + "countmax")
except Exception as e:
logger.error(_("Cannot read monitored list: {0}").format(e))
pass
else:
if description is not None and regex is not None:
# Build the new item
value["description"] = description
try:
re.compile(regex)
except:
continue
else:
value["regex"] = regex
value["command"] = command
value["countmin"] = countmin
value["countmax"] = countmax
value["count"] = None
value["result"] = None
# Add the item to the list
self.__monitor_list.append(value)
def __str__(self):
return str(self.__monitor_list)
def __repr__(self):
return self.__monitor_list
def __getitem__(self, item):
return self.__monitor_list[item]
def __len__(self):
return len(self.__monitor_list)
def __get__(self, item, key):
"""Meta function to return key value of item.
Return None if not defined or item > len(list)
"""
if item < len(self.__monitor_list):
try:
return self.__monitor_list[item][key]
except Exception:
return None
else:
return None
def update(self):
"""Update the command result attributed."""
# Only continue if monitor list is not empty
if len(self.__monitor_list) == 0:
return self.__monitor_list
# Iter upon the monitored list
for i in range(0, len(self.get())):
# Search monitored processes by a regular expression
processlist = glances_processes.getlist()
monitoredlist = [p for p in processlist if re.search(self.regex(i), p['cmdline']) is not None]
self.__monitor_list[i]['count'] = len(monitoredlist)
if self.command(i) is None:
# If there is no command specified in the conf file
# then display CPU and MEM %
self.__monitor_list[i]['result'] = 'CPU: {0:.1f}% | MEM: {1:.1f}%'.format(
sum([p['cpu_percent'] for p in monitoredlist]),
sum([p['memory_percent'] for p in monitoredlist]))
continue
else:
# Execute the user command line
try:
self.__monitor_list[i]['result'] = subprocess.check_output(self.command(i),
shell=True)
except subprocess.CalledProcessError:
self.__monitor_list[i]['result'] = _("Error: ") + self.command(i)
except Exception:
self.__monitor_list[i]['result'] = _("Cannot execute command")
return self.__monitor_list
def get(self):
"""Return the monitored list (list of dict)."""
return self.__monitor_list
def set(self, newlist):
"""Set the monitored list (list of dict)."""
self.__monitor_list = newlist
def getAll(self):
# Deprecated: use get()
return self.get()
def setAll(self, newlist):
# Deprecated: use set()
self.set(newlist)
def description(self, item):
"""Return the description of the item number (item)."""
return self.__get__(item, "description")
def regex(self, item):
"""Return the regular expression of the item number (item)."""
return self.__get__(item, "regex")
def command(self, item):
"""Return the stat command of the item number (item)."""
return self.__get__(item, "command")
def result(self, item):
"""Return the reult command of the item number (item)."""
return self.__get__(item, "result")
def countmin(self, item):
"""Return the minimum number of processes of the item number (item)."""
return self.__get__(item, "countmin")
def countmax(self, item):
"""Return the maximum number of processes of the item number (item)."""
return self.__get__(item, "countmax")
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