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5971da2c72
VDO pool LVs are represented by a new dbus interface VgVdo. Currently the interface only has additional VDO properties, but when the ability to support additional LV creation is added we can add a method to the interface.
107 lines
2.7 KiB
Python
107 lines
2.7 KiB
Python
# Copyright (C) 2015-2016 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import multiprocessing
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import queue
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import itertools
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from lvmdbusd import path
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LVM_CMD = os.getenv('LVM_BINARY', path.LVM_BINARY)
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# This is the global object manager
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om = None
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# This is the global bus connection
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bus = None
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# Command line args
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args = None
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# Set to true if we are depending on external events for updates
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got_external_event = False
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# Shared state variable across all processes
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run = multiprocessing.Value('i', 1)
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# If this is set to true, the current setup support lvm shell and we are
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# running in that mode of operation
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SHELL_IN_USE = None
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# Lock used by pprint
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stdout_lock = multiprocessing.Lock()
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worker_q = queue.Queue()
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# Main event loop
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loop = None
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BUS_NAME = os.getenv('LVM_DBUS_NAME', 'com.redhat.lvmdbus1')
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BASE_INTERFACE = 'com.redhat.lvmdbus1'
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PV_INTERFACE = BASE_INTERFACE + '.Pv'
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VG_INTERFACE = BASE_INTERFACE + '.Vg'
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VG_VDO_INTERFACE = BASE_INTERFACE + '.VgVdo'
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LV_INTERFACE = BASE_INTERFACE + '.Lv'
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LV_COMMON_INTERFACE = BASE_INTERFACE + '.LvCommon'
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THIN_POOL_INTERFACE = BASE_INTERFACE + '.ThinPool'
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VDO_POOL_INTERFACE = BASE_INTERFACE + '.VdoPool'
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CACHE_POOL_INTERFACE = BASE_INTERFACE + '.CachePool'
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LV_CACHED = BASE_INTERFACE + '.CachedLv'
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SNAPSHOT_INTERFACE = BASE_INTERFACE + '.Snapshot'
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MANAGER_INTERFACE = BASE_INTERFACE + '.Manager'
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JOB_INTERFACE = BASE_INTERFACE + '.Job'
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BASE_OBJ_PATH = '/' + BASE_INTERFACE.replace('.', '/')
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PV_OBJ_PATH = BASE_OBJ_PATH + '/Pv'
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VG_OBJ_PATH = BASE_OBJ_PATH + '/Vg'
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LV_OBJ_PATH = BASE_OBJ_PATH + '/Lv'
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THIN_POOL_PATH = BASE_OBJ_PATH + "/ThinPool"
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VDO_POOL_PATH = BASE_OBJ_PATH + "/VdoPool"
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CACHE_POOL_PATH = BASE_OBJ_PATH + "/CachePool"
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HIDDEN_LV_PATH = BASE_OBJ_PATH + "/HiddenLv"
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MANAGER_OBJ_PATH = BASE_OBJ_PATH + '/Manager'
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JOB_OBJ_PATH = BASE_OBJ_PATH + '/Job'
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# Counters for object path generation
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pv_id = itertools.count()
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vg_id = itertools.count()
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lv_id = itertools.count()
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thin_id = itertools.count()
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vdo_id = itertools.count()
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cache_pool_id = itertools.count()
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job_id = itertools.count()
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hidden_lv = itertools.count()
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# Used to prevent circular imports...
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load = None
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event = None
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# Boolean to denote if lvm supports VDO integration
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vdo_support = False
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# Global cached state
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db = None
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# lvm flight recorder
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blackbox = None
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# RequestEntry ctor
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create_request_entry = None
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def exit_daemon():
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"""
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Exit the daemon cleanly
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:return:
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"""
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if run and loop:
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run.value = 0
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loop.quit()
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