+def daemonise():
+ global syslogfacility
+ if opts.daemon and opts.syslogfacility is None:
+ opts.syslogfacility = 'daemon'
+
+ if opts.syslogfacility is not None:
+ facilnum = syslog.__dict__['LOG_' + opts.syslogfacility.upper()]
+ syslog.openlog('hippotatd',
+ facility=facilnum,
+ logoption=syslog.LOG_PID)
+ def emit(event):
+ m = twisted.logger.formatEvent(event)
+ #print(repr(event), m, file=org_stderr)
+ level = event.get('log_level')
+ if event.get('dflag',None) is not None: sl = syslog.LOG_DEBUG
+ elif level == LogLevel.critical : sl = syslog.LOG_CRIT
+ elif level == LogLevel.error : sl = syslog.LOG_ERR
+ elif level == LogLevel.warn : sl = syslog.LOG_WARNING
+ else : sl = syslog.LOG_INFO
+ syslog.syslog(sl,m)
+ glp = twisted.logger.globalLogPublisher
+ glp.addObserver(emit)
+ log_debug(DBG.INIT, 'starting to log to syslog')
+
+ #log.crit('daemonic hippotatd crashed', dflag=False)
+ if opts.daemon:
+ daemonic_reactor = (twisted.internet.interfaces.IReactorDaemonize
+ .providedBy(reactor))
+ if daemonic_reactor: reactor.beforeDaemonize()
+ if opts.pidfile is not None:
+ pidfile_h = open(opts.pidfile, 'w')
+ rfd, wfd = os.pipe()
+ childpid = os.fork()
+ if childpid:
+ # we are the parent
+ os.close(wfd)
+ st = os.read(rfd, 1)
+ try:
+ st = st[0]
+ except IndexError:
+ st = 127
+ log.critical('daemonic hippotatd crashed', dflag=False)
+ os._exit(st)
+ os.close(rfd)
+ os.setsid()
+ grandchildpid = os.fork()
+ if grandchildpid:
+ # we are the intermediate child
+ if opts.pidfile is not None:
+ print(grandchildpid, file=pfh)
+ pfh.close()
+ os._exit(0)
+
+ mypid = os.getpid()
+ pfh.close()
+
+ logger = subprocess.Popen(['logger','-d',
+ '-t','hippotat(stderr)',
+ '--id=%d' % mypid,
+ '-p',opts.syslogfacility + '.err'],
+ stdin=subprocess.PIPE,
+ stdout=subprocess.DEVNULL,
+ stderr=subprocess.DEVNULL,
+ restore_signals=True)
+
+ nullfd = os.open('/dev/null', os.O_RDWR)
+ os.dup2(nullfd, 0)
+ os.dup2(nullfd, 1)
+ os.dup2(logger.stdin.fileno(), 2)
+ os.close(nullfd)
+ if daemonic_reactor: reactor.afterDaemonize()
+ log_debug(DBG.INIT, 'daemonised')
+ os.write(wfd, b'\0')
+ os.close(wfd)
+
+ if opts.syslogfacility is not None:
+ glp.removeObserver(hippotatlib.file_log_observer)
+
+optparser.add_option('--ownsource', default=2,
+ action='store_const', dest='ownsource', const=2,
+ help='source download fully enabled (default)')
+
+optparser.add_option('--ownsource-local',
+ action='store_const', dest='ownsource', const=1,
+ help='source download is local source code only')
+
+optparser.add_option('--no-ownsource',
+ action='store_const', dest='ownsource', const=0,
+ help='source download disabled (for testing only)')
+
+optparser.add_option('--daemon',
+ action='store_true', dest='daemon', default=False,
+ help='daemonize (and log to syslog)')
+
+optparser.add_option('--pidfile',
+ nargs=1, type='string',
+ action='store', dest='pidfile', default=None,
+ help='write pid to this file')
+
+optparser.add_option('--syslog-facility',
+ nargs=1, type='string',action='store',
+ metavar='FACILITY', dest='syslogfacility',
+ default=None,
+ help='log to syslog, with specified facility')
+
+optparser.add_option('--print-config',
+ nargs=1, type='string',action='store',
+ metavar='OPTION', dest='printconfig',
+ default=None,
+ help='print one config option value and exit')
+