Source code for vmware.vapi.debug.livedump

"""
Copyright 2012-2014 VMware, Inc.  All rights reserved. -- VMware Confidential
"""
__author__ = 'VMware, Inc'

import signal
import sys
import six
import traceback
import logging

logger = logging.getLogger(__name__)


[docs]def signal_USR1_handler(signal_number, stack_frame): # pylint: disable=W0613 """ USR1 signal handler :type signal_number: :class:`int` :param signal_number: signal number :type stack_frame: frame object. See ``inspect`` :param stack_frame: frame object """ logger.error('---------------------- Begin dumping stack ----------------------') for tid, frame in six.iteritems(sys._current_frames()): # pylint: disable=W0212 logger.error('Thread id: %s\n%s', str(tid), ''.join(traceback.format_stack(frame))) logger.error('---------------------- End dumping stack ----------------------') # Install signal handlers
signal_handlers_map = {} if hasattr(signal, 'SIGUSR1'): signal_handlers_map[signal.SIGUSR1] = signal_USR1_handler # Note: signal.signal() can only be called from main thread for signal_num, handler in six.iteritems(signal_handlers_map): prev_handler = signal.signal(signal_num, handler) # Only install signal handlers once signal_handlers_map = {}