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lvm2/daemons/lvmdbusd/cfg.py
Tony Asleson ca28ea88be lvmdbusd: Add lvm flight recorder
To help out with debug, when an exception is thrown in the dbus service we
will dump all the information we have on the last 16 commands that were
executed along with the stack strace.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2016-03-21 17:28:51 -05:00

84 lines
2.1 KiB
Python

# Copyright (C) 2015-2016 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import multiprocessing
import queue
import itertools
try:
from . import path
except SystemError:
import path
LVM_CMD = os.getenv('LVM_BINARY', path.LVM_BINARY)
# This is the global object manager
om = None
# This is the global bus connection
bus = None
# Shared state variable across all processes
run = multiprocessing.Value('i', 1)
# Debug
DEBUG = True
# Use lvm shell
USE_SHELL = False
# Lock used by pprint
stdout_lock = multiprocessing.Lock()
kick_q = multiprocessing.Queue()
worker_q = queue.Queue()
# Main event loop
loop = None
BASE_INTERFACE = 'com.redhat.lvmdbus1'
PV_INTERFACE = BASE_INTERFACE + '.Pv'
VG_INTERFACE = BASE_INTERFACE + '.Vg'
LV_INTERFACE = BASE_INTERFACE + '.Lv'
LV_COMMON_INTERFACE = BASE_INTERFACE + '.LvCommon'
THIN_POOL_INTERFACE = BASE_INTERFACE + '.ThinPool'
CACHE_POOL_INTERFACE = BASE_INTERFACE + '.CachePool'
LV_CACHED = BASE_INTERFACE + '.CachedLv'
SNAPSHOT_INTERFACE = BASE_INTERFACE + '.Snapshot'
MANAGER_INTERFACE = BASE_INTERFACE + '.Manager'
JOB_INTERFACE = BASE_INTERFACE + '.Job'
BASE_OBJ_PATH = '/' + BASE_INTERFACE.replace('.', '/')
PV_OBJ_PATH = BASE_OBJ_PATH + '/Pv'
VG_OBJ_PATH = BASE_OBJ_PATH + '/Vg'
LV_OBJ_PATH = BASE_OBJ_PATH + '/Lv'
THIN_POOL_PATH = BASE_OBJ_PATH + "/ThinPool"
CACHE_POOL_PATH = BASE_OBJ_PATH + "/CachePool"
HIDDEN_LV_PATH = BASE_OBJ_PATH + "/HiddenLv"
MANAGER_OBJ_PATH = BASE_OBJ_PATH + '/Manager'
JOB_OBJ_PATH = BASE_OBJ_PATH + '/Job'
# Counters for object path generation
pv_id = itertools.count()
vg_id = itertools.count()
lv_id = itertools.count()
thin_id = itertools.count()
cache_pool_id = itertools.count()
job_id = itertools.count()
hidden_lv = itertools.count()
# Used to prevent circular imports...
load = None
# Global cached state
db = None
# lvm flight recorder
blackbox = None