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# ============LICENSE_START=======================================================
# org.onap.dcae
# ================================================================================
# Copyright (c) 2017-2018 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============LICENSE_END=========================================================
#
# ECOMP is a trademark and service mark of AT&T Intellectual Property.
#
"""
trapd_runtime_pid maintains a 'PID file' (file that contains the
PID of currently running trap receiver)
"""
__docformat__ = 'restructuredtext'
import logging
import os
import string
import time
import traceback
prog_name = os.path.basename(__file__)
# # # # # # # # # # # # #
# fx: save_pid - save PID of running process
# # # # # # # # # # # # #
def save_pid(_pid_file_name):
"""
Save the current process ID in a file for external
access.
:Parameters:
none
:Exceptions:
file open
this function will catch exception of unable to
open/create _pid_file_name
:Keywords:
pid /var/run
"""
try:
pid_fd = open(_pid_file_name, 'w')
pid_fd.write('%d' % os.getpid())
pid_fd.close()
except IOError:
print("IOError saving PID file %s :" % _pid_file_name)
return False
# except:
# print("Error saving PID file %s :" % _pid_file_name)
# return False
else:
# print("Runtime PID file: %s" % _pid_file_name)
return True
# # # # # # # # # # # # #
# fx: rm_pid - remove PID of running process
# # # # # # # # # # # # #
def rm_pid(_pid_file_name):
"""
Remove the current process ID file before exiting.
:Parameters:
none
:Exceptions:
file open
this function will catch exception of unable to find or remove
_pid_file_name
:Keywords:
pid /var/run
"""
try:
if os.path.isfile(_pid_file_name):
os.remove(_pid_file_name)
return True
else:
return False
except IOError:
print("Error removing Runtime PID file: %s" % _pid_file_name)
return False
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