server_util.py (3380B)
1 # Copyright 2020, Google Inc. 2 # All rights reserved. 3 # 4 # Redistribution and use in source and binary forms, with or without 5 # modification, are permitted provided that the following conditions are 6 # met: 7 # 8 # * Redistributions of source code must retain the above copyright 9 # notice, this list of conditions and the following disclaimer. 10 # * Redistributions in binary form must reproduce the above 11 # copyright notice, this list of conditions and the following disclaimer 12 # in the documentation and/or other materials provided with the 13 # distribution. 14 # * Neither the name of Google Inc. nor the names of its 15 # contributors may be used to endorse or promote products derived from 16 # this software without specific prior written permission. 17 # 18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 """Server related utilities.""" 30 31 import logging 32 import logging.handlers 33 import threading 34 import time 35 36 from mod_pywebsocket import common 37 from mod_pywebsocket import util 38 39 40 def _get_logger_from_class(c): 41 return logging.getLogger('%s.%s' % (c.__module__, c.__name__)) 42 43 44 def configure_logging(options): 45 logging.addLevelName(common.LOGLEVEL_FINE, 'FINE') 46 47 logger = logging.getLogger() 48 logger.setLevel(logging.getLevelName(options.log_level.upper())) 49 if options.log_file: 50 handler = logging.handlers.RotatingFileHandler(options.log_file, 'a', 51 options.log_max, 52 options.log_count) 53 else: 54 handler = logging.StreamHandler() 55 formatter = logging.Formatter( 56 '[%(asctime)s] [%(levelname)s] %(name)s: %(message)s') 57 handler.setFormatter(formatter) 58 logger.addHandler(handler) 59 60 deflate_log_level_name = logging.getLevelName( 61 options.deflate_log_level.upper()) 62 _get_logger_from_class(util._Deflater).setLevel(deflate_log_level_name) 63 _get_logger_from_class(util._Inflater).setLevel(deflate_log_level_name) 64 65 66 class ThreadMonitor(threading.Thread): 67 daemon = True 68 69 def __init__(self, interval_in_sec): 70 threading.Thread.__init__(self, name='ThreadMonitor') 71 72 self._logger = util.get_class_logger(self) 73 74 self._interval_in_sec = interval_in_sec 75 76 def run(self): 77 while True: 78 thread_name_list = [] 79 for thread in threading.enumerate(): 80 thread_name_list.append(thread.name) 81 self._logger.info("%d active threads: %s", 82 threading.active_count(), 83 ', '.join(thread_name_list)) 84 time.sleep(self._interval_in_sec) 85 86 87 # vi:sts=4 sw=4 et