119 lines
3.9 KiB
Python
119 lines
3.9 KiB
Python
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#!/usr/bin/env python
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"""Process a ref debug log for lock usage
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This file will process a log file created by Asterisk
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that was compiled with REF_DEBUG and DEBUG_THREADS.
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See http://www.asterisk.org for more information about
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the Asterisk project. Please do not directly contact
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any of the maintainers of this project for assistance;
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the project provides a web site, mailing lists and IRC
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channels for your use.
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This program is free software, distributed under the terms of
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the GNU General Public License Version 2. See the LICENSE file
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at the top of the source tree.
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Copyright (C) 2018, CFWare, LLC
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Corey Farrell <git@cfware.com>
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"""
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from __future__ import print_function
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import sys
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import os
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from optparse import OptionParser
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def process_file(options):
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"""The routine that kicks off processing a ref file"""
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object_types = {}
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objects = {}
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filename = options.filepath
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with open(filename, 'r') as ref_file:
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for line in ref_file:
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if 'constructor' not in line and 'destructor' not in line:
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continue
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# The line format is:
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# addr,delta,thread_id,file,line,function,state,tag
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# Only addr, file, line, function, state are used by reflocks.py
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tokens = line.strip().split(',', 7)
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addr = tokens[0]
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state = tokens[6]
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if 'constructor' in state:
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obj_type = '%s:%s:%s' % (tokens[3], tokens[4], tokens[5])
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if obj_type not in object_types:
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object_types[obj_type] = {
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'used': 0,
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'unused': 0,
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'none': 0
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}
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objects[addr] = obj_type
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elif 'destructor' in state:
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if addr not in objects:
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# This error would be reported by refcounter.py.
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continue
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obj_type = objects[addr]
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del objects[addr]
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if '**lock-state:unused**' in state:
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object_types[obj_type]['unused'] += 1
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elif '**lock-state:used**' in state:
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object_types[obj_type]['used'] += 1
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elif '**lock-state:none**' in state:
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object_types[obj_type]['none'] += 1
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for (allocator, info) in object_types.items():
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stats = [];
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if info['used'] > 0:
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if not options.used:
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continue
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stats.append("%d used" % info['used'])
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if info['unused'] > 0:
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stats.append("%d unused" % info['unused'])
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if info['none'] > 0 and options.none:
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stats.append("%d none" % info['none'])
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if len(stats) == 0:
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continue
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print("%s: %s" % (allocator, ', '.join(stats)))
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def main(argv=None):
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"""Main entry point for the script"""
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ret_code = 0
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if argv is None:
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argv = sys.argv
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parser = OptionParser()
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parser.add_option("-f", "--file", action="store", type="string",
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dest="filepath", default="/var/log/asterisk/refs",
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help="The full path to the refs file to process")
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parser.add_option("-u", "--suppress-used", action="store_false",
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dest="used", default=True,
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help="Don't output types that have used locks.")
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parser.add_option("-n", "--show-none", action="store_true",
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dest="none", default=False,
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help="Show counts of objects with no locking.")
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(options, args) = parser.parse_args(argv)
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if not os.path.isfile(options.filepath):
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print("File not found: %s" % options.filepath, file=sys.stderr)
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return -1
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try:
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process_file(options)
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except (KeyboardInterrupt, SystemExit, IOError):
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print("File processing cancelled", file=sys.stderr)
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return -1
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return ret_code
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if __name__ == "__main__":
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sys.exit(main(sys.argv))
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