def clean_on_exit(fp_sock):
"""Method executed on process exit"""
logging.info('clean up on process exit')
try: os.remove(fp_sock)
except: pass
logging.info('shutdown logging system')
logging.close()
def handle_sigusr1(self, signum, frame):
"""Handle signal SIGUSR1 to reload server configuration"""
logging.info('reload server configuration (by signal)')
# Catch exception in the I{main} method caused by received signal
self.__by_signal_do = 1
config = get_conf(CFG_PATH)
# PID file cannot be changed
config['server']['pid'] = self._config['server']['pid']
# Log file path changed
if self._config['server']['log'] != config['server']['log']:
logging.close(0)
logging.init(0, filename=config['server']['log'])
# Local socket path changed
init_loc = (config['server']['sock'] != self._config['server']['sock'])
# SSL option changed and/or server ip/port, we need to
# shutdown current socket and open new one
init_srv = (config['ssl'] != self._config['ssl'] \
or config['server']['port'] != self._config['server']['port'] \
or config['server']['ip'] != self._config['server']['ip'])
self._config = config.copy()
if init_srv:
try:
self.socket.shutdown(socket.SHUT_RDWR)
self._create_bind_activate(1)
except Exception as e:
# @todo: fix: if cannot bind new socket, do not reload config
self.__by_signal_do = 0
logging.error(e)
if init_loc:
try:
self._create_local_socket(1)
except Exception as e:
pass
self.socket.settimeout(config['server']['timeout'])
# Non-blocking mode
self.__local_sock.settimeout(0.0)
logging.info('server configuration reloaded')
del config
server._aliases = aliases.copy()
# Catch SIGUSR1 signal to reload server configuration
signal.signal(signal.SIGUSR1, server.handle_sigusr1)
# Catch SIGUSR2 signal to reload aliases configuration
signal.signal(signal.SIGUSR2, server.handle_sigusr2)
msg_stdout('Signal handlers registered')
if server.activate():
msg_stdout('Server activated', flush_buf=1)
# Send message to local socket in the first parent process
r = server.daemonize()
if r:
logging.info('forked as daemon process')
# Close logging, init new to file
logging.close(0)
logging.init(0, filename=config['server']['log'])
# Delete local socket on FS when process exit
atexit.register(clean_on_exit, config['server']['sock'])
# Start main loop
server.main()
else:
msg_stdout('Error: can\'t daemonize', 2)
elif sys.argv[1].lower() == 'stop':
msg_sock(config['server'], 'shutdown', 0)
elif sys.argv[1].lower() == 'reload':
signal_to_daemon(config['server']['pid'], signal.SIGUSR1)
elif sys.argv[1].lower() == 'aliases':