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#-------------------------------------------------------------------------------
# Copyright (c) 2012-2014 by European Organization for Nuclear Research (CERN)
# Author: Michal Simon <michal.simon@cern.ch>
#-------------------------------------------------------------------------------
# This file is part of the XRootD software suite.
#
# XRootD 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.
#
# XRootD 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 Lesser General Public License
# along with XRootD. If not, see <http://www.gnu.org/licenses/>.
#
# In applying this licence, CERN does not waive the privileges and immunities
# granted to it by virtue of its status as an Intergovernmental Organization
# or submit itself to any jurisdiction.
#------------------------------------------------------------------------------
from __future__ import absolute_import
import gc
import atexit
from pyxrootd import client
from .file import File
@atexit.register
def finalize():
"""Python atexit handler, will stop all XRootD client threads
(XrdCl JobManager, TaskManager and Poller) in order to ensure
no Python APIs are called after the Python Interpreter gets
finalized.
"""
# Ensure there are no files left open as calling their destructor will
# cause "close" commands to be sent.
# If this isn't done, there will be no running threads to process requests
# after this function returns so the interpreter will deadlock.
for obj in gc.get_objects():
try:
if isinstance(obj, File) and obj.is_open():
obj.close()
except ReferenceError:
pass
client.__XrdCl_Stop_Threads()
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