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# coding: UTF-8
# Copyright 2009, 2010 Thomas Jourdan
#
# 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 3 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 St, Fifth Floor, Boston, MA 02110-1301 USA
from gettext import gettext as _
import os
import sys
import traceback
import ka_debug
import ka_extensionpoint
_proc_status = '/proc/%d/status' % os.getpid()
TOPIC_COLLABORATION = 1000
SUB_ID = 1
SUB_SHARE = 2
SUB_TUBES = 3
SUB_BUDDIES_PARTICIPATING = 4
SUB_BUDDIES_JOINED = 5
SUB_BUDDIES_LEFT = 6
SUB_RECEIVED = 7
SUB_BUDDIES_FOUND = 8
TOPIC_TASK = 2000
SUB_UNFINISHED = 1
SUB_THREADS = 2
SUB_VM_SIZE = 3
SUB_VM_PEAK = 4
SUB_VM_RSS = 5
SUB_PID = 6
TOPIC_ACTIVTY = 9000
SUB_REVISION = 1
TOPIC = {TOPIC_COLLABORATION: _('Collaboration'),
TOPIC_COLLABORATION+SUB_ID: _('My ID'),
TOPIC_COLLABORATION+SUB_SHARE: _('Share'),
TOPIC_COLLABORATION+SUB_TUBES: _('My tubes'),
TOPIC_COLLABORATION+SUB_BUDDIES_PARTICIPATING: _('Buddies participating'),
TOPIC_COLLABORATION+SUB_BUDDIES_JOINED: _('Buddies joined'),
TOPIC_COLLABORATION+SUB_BUDDIES_LEFT: _('Buddies left'),
TOPIC_COLLABORATION+SUB_RECEIVED: _('Received latest'),
TOPIC_COLLABORATION+SUB_BUDDIES_FOUND: _('Buddies found during startup'),
TOPIC_TASK: _('Tasks'),
TOPIC_TASK+SUB_UNFINISHED: _('Unfinished tasks'),
TOPIC_TASK+SUB_THREADS: _('Threads'),
TOPIC_TASK+SUB_VM_SIZE: _('Virtual memory size'),
TOPIC_TASK+SUB_VM_PEAK: _('Virtual memory peak size'),
TOPIC_TASK+SUB_VM_RSS: _('Resident set size'),
TOPIC_TASK+SUB_PID: _('Process ID'),
TOPIC_ACTIVTY: _('Activity'),
TOPIC_ACTIVTY+SUB_REVISION: _('Running'),
}
class Status(object):
"""
inv: self._status_dict is not None
"""
_status = None
def __init__(self):
"""
"""
self._dirty_flag = True
self._status_dict = {}
value = 'Kandid, release v' + str(ka_extensionpoint.revision_number)
value = value + ', DoB activated' if ka_debug.is_DbC_activated \
else value
self.set(TOPIC_ACTIVTY, SUB_REVISION, value)
self.set(TOPIC_TASK, SUB_PID, str(os.getpid()))
@staticmethod
def instance():
if Status._status is None:
Status._status = Status()
return Status._status
def set(self, topic, sub, value):
"""
pre: topic >= 1000 and topic <= TOPIC_ACTIVTY and topic % 1000 == 0
pre: sub > 0 and sub < 1000
pre: value is not None
"""
self._dirty_flag = True
if str(type(value)) == "<type 'set'>":
self._status_dict[topic+sub] = str(value)[5:-2]
elif str(type(value)) == "<type 'list'>":
self._status_dict[topic+sub] = str(value)[1:-1]
else:
self._status_dict[topic+sub] = value
def isDirty(self):
return self._dirty_flag
def recall(self):
"""
post: __return__ is not None
"""
self._dirty_flag = False
keys = self._status_dict.keys()
keys.sort()
text = ''
topic_head = 0
for key in keys:
if not key / 1000 == topic_head:
text += '\n' + TOPIC[key - key % 1000] + '\n'
topic_head = key / 1000
text += ' ' + TOPIC[key] + ': ' + self._status_dict[key] + '\n'
return text
def _set_process_status(self, os_status, key, sub):
pos = os_status.index(key)
num_tokens = 3 if key.startswith('Vm') else 2
tri = os_status[pos:].split(None, num_tokens) # whitespace
pos, pretty = 0, ''
for digit in tri[1][::-1]:
if pos > 0 and pos % 3 == 0:
pretty = '.' + pretty
pretty = digit + pretty
pos += 1
if num_tokens > 2:
self.set(TOPIC_TASK, sub, pretty + ' ' + tri[2])
else:
self.set(TOPIC_TASK, sub, pretty)
return pos
def scan_os_status(self):
"""see
http://linuxdevcenter.com/pub/a/linux/2006/11/30/linux-out-of-memory.html
"""
try:
proc = open(_proc_status)
os_status = proc.read()
self._set_process_status(os_status, 'Threads:', SUB_THREADS)
self._set_process_status(os_status, 'VmSize:', SUB_VM_SIZE)
self._set_process_status(os_status, 'VmPeak:', SUB_VM_PEAK)
self._set_process_status(os_status, 'VmRSS:', SUB_VM_RSS)
proc.close()
except:
# non Linux?
ka_debug.err('scan_os_status [%s] [%s]' % \
(sys.exc_info()[0], sys.exc_info()[1]))
traceback.print_exc(file=sys.__stderr__)
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