Exemplo n.º 1
0
int main(){
	
	/*uint8_t status = 1;
	CTRL ^= 3 << LEDFLASH_MODE;
	while(1){
		sys_wdt_rst(0);
		nand_rst();
		nand_set_ecc(1);
		sys_delay_ms(1);
	}*/
	
	/*uint8_t tmpbuf[32], nullbuf[32];
	uint32_t t;
	for(uint8_t i = 0; i < 32; i++) tmpbuf[i] = i, nullbuf[i] = 0;
	CTRL ^= LEDFLASH_MODE_MASK;
	while(1){  
		t = TIMER;
		for(uint8_t i = 0; i < 16; i++) spimem_write(0, 32, tmpbuf), spimem_write(0,32,nullbuf); //32 writes
		sys_uart_printdec(TIMER-t); sys_uart_write(' ');
		sys_wdt_rst(1);
	}*/
	//sys_signal_startup();
	
	sys_init();
	
	sys_wdt_rst(0);
	sys_delay_ms(1000);
	sys_wdt_rst(1);
	sys_delay_ms(1000);
	sys_wdt_rst(1);
	
	/*CTRL |= ITIMER_MODE_MASK;
	ITIMER = 32766;
	set_interrupt_mask(IE_ITIMER_MASK | IE_LOW_BATT_MASK);*/
	//set_interrupt_mask(IE_LOW_BATT_MASK);
	
	
	dock_on_start();
	
//	if(SFLAG(WD_FLAG_MASK) && !SFLAG(LUP_FLAG_MASK)) sys_uart_printstr("WDr");
//	if(SFLAG(WD_FLAG_MASK | LUP_FLAG_MASK)) sys_uart_printstr("LCKr");
	
	jpeg_init();
	
	sys_signal_startup();
	
	//selftest(); //WARNING!!!!!
	//sys_failure(SYS_FAILURE_SENSOR_CHECK, 0);
	
	while(1){
		exec_sign ^= 0x1;
//action
		sensor_grab(1);
		frame_cnt++;
		if(diff_use() == 0) 
			monitor_jpeg_to_dest(cur_mode.q_table, 2, 0), saved_frame_cnt++;
		else exec_sign ^= 0x1F00;
		
//service
		stat_mode_on_loop();
		stat_on_loop();
		sys_wdt_rst(1);
		monitor_loop();
//delay
		sys_delay_fps();
		
		sys_check_exec_signature();
		
	}
	return 0;  
}
Exemplo n.º 2
0
DWORD server_setup(SOCKET fd)
{
	Remote *remote = NULL;
	DWORD res = 0;
#ifdef _UNIX
	int local_error = 0;
#endif
	// if hAppInstance is still == NULL it means that we havent been
	// reflectivly loaded so we must patch in the hAppInstance value
	// for use with loading server extensions later.
	InitAppInstance();
	srand((unsigned int)time(NULL));
	
	__try 
	{

	do
	{
		if (!(remote = remote_allocate(fd)))
		{
			SetLastError(ERROR_NOT_ENOUGH_MEMORY);
			break;
		}

		// Do not allow the file descriptor to be inherited by child 
		// processes
		SetHandleInformation((HANDLE)fd, HANDLE_FLAG_INHERIT, 0);

		// Flush the socket handle
		dprintf("Flushing the socket handle...");
		flush_socket(remote);

		// Initialize SSL on the socket
		dprintf("Negotiating SSL...");
		negotiate_ssl(remote);

		// Register extension dispatch routines
		dprintf("Registering dispatch routines...");		
		register_dispatch_routines();

		dprintf("Entering the monitor loop...");		
		// Keep processing commands
		res = monitor_loop(remote);
	
		dprintf("Deregistering dispatch routines...");		
		// Clean up our dispatch routines
		deregister_dispatch_routines();

	} while (0);

	dprintf("Closing down SSL...");
	SSL_free(remote->ssl);
	SSL_CTX_free(remote->ctx);

	if (remote)
		remote_deallocate(remote);
	}

	/* Invoke the fatal error handler */
	__except(exceptionfilter(GetExceptionCode(), GetExceptionInformation())) {
		dprintf("*** exception triggered!");
		ExitThread(0);
	}

	return res;
}
Exemplo n.º 3
0
int main (int argc, char **argv, char **env) {
    struct stat stat_buf;
#else
int main (int argc, char **argv) {
#endif
    int sid, x;
#ifdef EMBEDDEDPERL
    start_env=env;
#endif

    last_time_increased = 0;

    /* store the original command line for later reloads */
    store_original_comandline(argc, argv);

    /*
     * allocate options structure
     * and parse command line
     */
    mod_gm_opt = gm_malloc(sizeof(mod_gm_opt_t));
    set_default_options(mod_gm_opt);
    if(parse_arguments(argc, argv) != GM_OK) {
        exit( EXIT_FAILURE );
    }

#ifdef EMBEDDEDPERL
    /* make sure the P1 file exists... */
    if(p1_file==NULL){
        gm_log(GM_LOG_ERROR,"Error: p1.pl file required for embedded Perl interpreter is not set!\n");
        exit( EXIT_FAILURE );
    }
    if(stat(p1_file,&stat_buf)!=0){
        gm_log(GM_LOG_ERROR,"Error: p1.pl file required for embedded Perl interpreter is missing!\n");
        perror("stat");
        exit( EXIT_FAILURE );
    }
#endif

    /* fork into daemon mode? */
    if(mod_gm_opt->daemon_mode == GM_ENABLED) {
        pid_t pid = fork();
        /* an error occurred while trying to fork */
        if(pid == -1) {
            perror("fork");
            exit( EXIT_FAILURE );
        }
        /* we are the child process */
        else if(pid == 0) {
            gm_log( GM_LOG_INFO, "mod_gearman worker daemon started with pid %d\n", getpid());

            /* Create a new SID for the child process */
            sid = setsid();
            if ( sid < 0 ) {
                mod_gm_free_opt(mod_gm_opt);
                exit( EXIT_FAILURE );
            }

            /* Close out the standard file descriptors */
            if(mod_gm_opt->debug_level <= 1) {
                close(STDIN_FILENO);
                close(STDOUT_FILENO);
                close(STDERR_FILENO);
            }
        }
        /* we are the parent. So forking into daemon mode worked */
        else {
            mod_gm_free_opt(mod_gm_opt);
            exit( EXIT_SUCCESS );
        }
    } else {
        gm_log( GM_LOG_INFO, "mod_gearman worker started with pid %d\n", getpid());
    }

    /* print some version information */
    gm_log( GM_LOG_DEBUG, "Version %s\n", GM_VERSION );
    gm_log( GM_LOG_DEBUG, "running on libgearman %s\n", gearman_version() );


    /* set signal handlers for a clean exit */
    signal(SIGINT, clean_exit);
    signal(SIGTERM,clean_exit);
    signal(SIGHUP, reload_config);
    signal(SIGPIPE, SIG_IGN);


    /* check and write pid file */
    if(write_pid_file() != GM_OK) {
        exit(EXIT_FAILURE);
    }

    /* init crypto functions */
    if(mod_gm_opt->encryption == GM_ENABLED) {
        mod_gm_crypt_init(mod_gm_opt->crypt_key);
    } else {
        mod_gm_opt->transportmode = GM_ENCODE_ONLY;
    }

    gm_log( GM_LOG_DEBUG, "main process started\n");

    /* start a single non forked standalone worker */
    if(mod_gm_opt->debug_level >= 10) {
        gm_log( GM_LOG_TRACE, "starting standalone worker\n");
#ifdef EMBEDDEDPERL
        worker_client(GM_WORKER_STANDALONE, 1, shmid, start_env);
#else
        worker_client(GM_WORKER_STANDALONE, 1, shmid);
#endif
        exit(EXIT_SUCCESS);
    }

    /* setup shared memory */
    setup_child_communicator();

    /* start status worker */
    make_new_child(GM_WORKER_STATUS);

    /* setup children */
    for(x=0; x < mod_gm_opt->min_worker; x++) {
        make_new_child(GM_WORKER_MULTI);
    }

    /* maintain worker population */
    monitor_loop();

    gm_log( GM_LOG_ERROR, "worker exited from main loop\n");
    clean_exit(15);
    exit( EXIT_SUCCESS );
}
Exemplo n.º 4
0
int main(int argc, char **argv)
{
        struct pqos_config cfg;
        const struct pqos_cpuinfo *p_cpu = NULL;
        const struct pqos_cap *p_cap = NULL;
        const struct pqos_capability *cap_mon = NULL, *cap_l3ca = NULL;
        unsigned sock_count, sockets[PQOS_MAX_SOCKETS];
        int cmd, ret, exit_val = EXIT_SUCCESS;
        int opt_index = 0;

        m_cmd_name = argv[0];
        print_warning();

        while ((cmd = getopt_long(argc, argv,
                                  "Hhf:i:m:Tt:l:o:u:e:c:a:p:S:srvVR",
                                  long_cmd_opts, &opt_index)) != -1) {
                switch (cmd) {
                case 'h':
                        print_help(1);
                        return EXIT_SUCCESS;
                case 'H':
                        profile_l3ca_list(stdout);
                        return EXIT_SUCCESS;
                case 'S':
                        selfn_set_config(optarg);
                        break;
                case 'f':
                        if (sel_config_file != NULL) {
                                printf("Only one config file argument is "
                                       "accepted!\n");
                                return EXIT_FAILURE;
                        }
                        selfn_strdup(&sel_config_file, optarg);
                        parse_config_file(sel_config_file);
                        break;
                case 'i':
                        selfn_monitor_interval(optarg);
                        break;
                case 'p':
		        selfn_monitor_pids(optarg);
                        break;
                case 'm':
                        selfn_monitor_cores(optarg);
                        break;
                case 't':
                        selfn_monitor_time(optarg);
                        break;
                case 'T':
                        selfn_monitor_top_like(NULL);
                        break;
                case 'l':
                        selfn_log_file(optarg);
                        break;
                case 'o':
                        selfn_monitor_file(optarg);
                        break;
                case 'u':
                        selfn_monitor_file_type(optarg);
                        break;
                case 'e':
                        selfn_allocation_class(optarg);
                        break;
                case 'r':
                        sel_free_in_use_rmid = 1;
                        break;
                case 'R':
                        selfn_reset_cat(NULL);
                        break;
                case 'a':
                        selfn_allocation_assoc(optarg);
                        break;
                case 'c':
                        selfn_allocation_select(optarg);
                        break;
                case 's':
                        selfn_show_allocation(NULL);
                        break;
                case 'v':
                        selfn_verbose_mode(NULL);
                        break;
                case 'V':
                        selfn_super_verbose_mode(NULL);
                        break;
                default:
                        printf("Unsupported option: -%c. "
                               "See option -h for help.\n", optopt);
                        return EXIT_FAILURE;
                        break;
                case '?':
                        print_help(0);
                        return EXIT_SUCCESS;
                        break;
                }
        }

        memset(&cfg, 0, sizeof(cfg));
        cfg.verbose = sel_verbose_mode;
        cfg.free_in_use_rmid = sel_free_in_use_rmid;
        cfg.cdp_cfg = selfn_cdp_config;

        /**
         * Set up file descriptor for message log
         */
        if (sel_log_file == NULL) {
                cfg.fd_log = STDOUT_FILENO;
        } else {
                cfg.fd_log = open(sel_log_file, O_WRONLY|O_CREAT,
                                  S_IRUSR|S_IWUSR);
                if (cfg.fd_log == -1) {
                        printf("Error opening %s log file!\n", sel_log_file);
                        exit_val = EXIT_FAILURE;
                        goto error_exit_2;
                }
        }

        ret = pqos_init(&cfg);
        if (ret != PQOS_RETVAL_OK) {
                printf("Error initializing PQoS library!\n");
                exit_val = EXIT_FAILURE;
                goto error_exit_1;
        }

        ret = pqos_cap_get(&p_cap, &p_cpu);
        if (ret != PQOS_RETVAL_OK) {
                printf("Error retrieving PQoS capabilities!\n");
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
        }

        ret = pqos_cpu_get_sockets(p_cpu, PQOS_MAX_SOCKETS,
                                   &sock_count,
                                   sockets);
        if (ret != PQOS_RETVAL_OK) {
                printf("Error retrieving CPU socket information!\n");
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
        }

        ret = pqos_cap_get_type(p_cap, PQOS_CAP_TYPE_MON, &cap_mon);
        if (ret == PQOS_RETVAL_PARAM) {
                printf("Error retrieving monitoring capabilities!\n");
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
        }

        ret = pqos_cap_get_type(p_cap, PQOS_CAP_TYPE_L3CA, &cap_l3ca);
        if (ret == PQOS_RETVAL_PARAM) {
                printf("Error retrieving allocation capabilities!\n");
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
        }

        if (sel_reset_CAT) {
                /**
                 * Reset CAT configuration to after-reset state and exit
                 */
                if (pqos_l3ca_reset(p_cap, p_cpu) != PQOS_RETVAL_OK) {
                        exit_val = EXIT_FAILURE;
                        printf("CAT reset failed!\n");
                } else
                        printf("CAT reset successful\n");
                goto allocation_exit;
        }

        if (sel_show_allocation_config) {
                /**
                 * Show info about allocation config and exit
                 */
		alloc_print_config(cap_mon, cap_l3ca, sock_count,
                                   sockets, p_cpu);
                goto allocation_exit;
        }

        if (sel_allocation_profile != NULL) {
                if (profile_l3ca_apply(sel_allocation_profile, cap_l3ca) != 0) {
                        exit_val = EXIT_FAILURE;
                        goto error_exit_2;
                }
        }

        switch (alloc_apply(cap_l3ca, sock_count, sockets)) {
        case 0: /* nothing to apply */
                break;
        case 1: /* new allocation config applied and all is good */
                goto allocation_exit;
                break;
        case -1: /* something went wrong */
        default:
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
                break;
        }

        /**
         * Just monitoring option left on the table now
         */
        if (cap_mon == NULL) {
                printf("Monitoring capability not detected!\n");
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
        }

        if (monitor_setup(p_cpu, cap_mon) != 0) {
                exit_val = EXIT_FAILURE;
                goto error_exit_2;
        }
        monitor_loop(p_cap);
        monitor_stop();

 allocation_exit:
 error_exit_2:
        ret = pqos_fini();
        ASSERT(ret == PQOS_RETVAL_OK);
        if (ret != PQOS_RETVAL_OK)
                printf("Error shutting down PQoS library!\n");

 error_exit_1:
        monitor_cleanup();

        /**
         * Close file descriptor for message log
         */
        if (cfg.fd_log > 0 && cfg.fd_log != STDOUT_FILENO)
                close(cfg.fd_log);

        /**
         * Free allocated memory
         */
        if (sel_allocation_profile != NULL)
                free(sel_allocation_profile);
        if (sel_log_file != NULL)
                free(sel_log_file);
        if (sel_config_file != NULL)
                free(sel_config_file);

        return exit_val;
}
Exemplo n.º 5
0
int
main(int argc, char **argv)
{
	extern char	*__progname;
	char		*cfgfile = 0;
	int		 ch;

	if (geteuid() != 0) {
		/* No point in continuing. */
		fprintf(stderr, "%s: This daemon needs to be run as root.\n",
		    __progname);
		return 1;
	}

	while ((ch = getopt(argc, argv, "c:dv")) != -1) {
		switch (ch) {
		case 'c':
			if (cfgfile)
				usage();
			cfgfile = optarg;
			break;
		case 'd':
			cfgstate.debug++;
			break;
		case 'v':
			cfgstate.verboselevel++;
			break;
		default:
			usage();
		}
	}
	argc -= optind;
	argv += optind;

	if (argc > 0)
		usage();

	log_init(__progname);
	timer_init();

	cfgstate.runstate = INIT;
	LIST_INIT(&cfgstate.peerlist);

	cfgstate.listen_port = SASYNCD_DEFAULT_PORT;
	cfgstate.flags |= CTL_DEFAULT;

	if (!cfgfile)
		cfgfile = SASYNCD_CFGFILE;

	if (conf_parse_file(cfgfile) == 0 ) {
		if (!cfgstate.sharedkey) {
			fprintf(stderr, "config: "
			    "no shared key specified, cannot continue");
			exit(1);
		}
	} else {
		exit(1);
	}

	carp_demote(CARP_INC, 0);

	if (carp_init())
		return 1;
	if (pfkey_init(0))
		return 1;
	if (net_init())
		return 1;

	if (!cfgstate.debug)
		if (daemon(1, 0)) {
			perror("daemon()");
			exit(1);
		}

	if (monitor_init()) {
		/* Parent, with privileges. */
		monitor_loop();
		exit(0);
	}

	/* Child, no privileges left. Run main loop. */
	sasyncd_run(getppid());

	/* Shutdown. */
	log_msg(0, "shutting down...");

	net_shutdown();
	pfkey_shutdown();
	return 0;
}
Exemplo n.º 6
0
int
main(int argc, char *argv[])
{
	fd_set         *rfds, *wfds;
	int             n, m;
	size_t          mask_size;
	struct timeval  tv, *timeout;

	closefrom(STDERR_FILENO + 1);

	/*
	 * Make sure init() won't alloc fd 0, 1 or 2, as daemon() will close
	 * them.
	 */
	for (n = 0; n <= 2; n++)
		if (fcntl(n, F_GETFL, 0) == -1 && errno == EBADF)
			(void) open("/dev/null", n ? O_WRONLY : O_RDONLY, 0);

	/* Log cmd line parsing and initialization errors to stderr.  */
	log_to(stderr);
	parse_args(argc, argv);
	log_init(debug);
	log_print("isakmpd: starting");

	/* Open protocols and services databases.  */
	setprotoent(1);
	setservent(1);

	/* Open command fifo */
	ui_init();

	set_slave_signals();
	/* Daemonize before forking unpriv'ed child */
	if (!debug)
		if (daemon(0, 0))
			log_fatal("main: daemon (0, 0) failed");

	/* Set timezone before priv'separation */
	tzset();

	write_pid_file();

	if (monitor_init(debug)) {
		/* The parent, with privileges enters infinite monitor loop. */
		monitor_loop(debug);
		exit(0);	/* Never reached.  */
	}
	/* Child process only from this point on, no privileges left.  */

	init();

	/* If we wanted IKE packet capture to file, initialize it now.  */
	if (pcap_file != 0)
		log_packet_init(pcap_file);

	/* Allocate the file descriptor sets just big enough.  */
	n = getdtablesize();
	mask_size = howmany(n, NFDBITS) * sizeof(fd_mask);
	rfds = (fd_set *) malloc(mask_size);
	if (!rfds)
		log_fatal("main: malloc (%lu) failed",
		    (unsigned long)mask_size);
	wfds = (fd_set *) malloc(mask_size);
	if (!wfds)
		log_fatal("main: malloc (%lu) failed",
		    (unsigned long)mask_size);

	monitor_init_done();

	while (1) {
		/* If someone has sent SIGHUP to us, reconfigure.  */
		if (sighupped) {
			sighupped = 0;
			log_print("SIGHUP received");
			reinit();
		}
		/* and if someone sent SIGUSR1, do a state report.  */
		if (sigusr1ed) {
			sigusr1ed = 0;
			log_print("SIGUSR1 received");
			report();
		}
		/*
		 * and if someone set 'sigtermed' (SIGTERM, SIGINT or via the
		 * UI), this indicates we should start a controlled shutdown
		 * of the daemon.
		 *
		 * Note: Since _one_ message is sent per iteration of this
		 * enclosing while-loop, and we want to send a number of
		 * DELETE notifications, we must loop atleast this number of
		 * times. The daemon_shutdown() function starts by queueing
		 * the DELETEs, all other calls just increments the
		 * 'sigtermed' variable until it reaches a "safe" value, and
		 * the daemon exits.
		 */
		if (sigtermed)
			daemon_shutdown();

		/* Setup the descriptors to look for incoming messages at.  */
		bzero(rfds, mask_size);
		n = transport_fd_set(rfds);
		FD_SET(ui_socket, rfds);
		if (ui_socket + 1 > n)
			n = ui_socket + 1;

		/*
		 * XXX Some day we might want to deal with an abstract
		 * application class instead, with many instantiations
		 * possible.
		 */
		if (!app_none && app_socket >= 0) {
			FD_SET(app_socket, rfds);
			if (app_socket + 1 > n)
				n = app_socket + 1;
		}
		/* Setup the descriptors that have pending messages to send. */
		bzero(wfds, mask_size);
		m = transport_pending_wfd_set(wfds);
		if (m > n)
			n = m;

		/* Find out when the next timed event is.  */
		timeout = &tv;
		timer_next_event(&timeout);

		n = select(n, rfds, wfds, 0, timeout);
		if (n == -1) {
			if (errno != EINTR) {
				log_error("main: select");

				/*
				 * In order to give the unexpected error
				 * condition time to resolve without letting
				 * this process eat up all available CPU
				 * we sleep for a short while.
				 */
				sleep(1);
			}
		} else if (n) {
			transport_handle_messages(rfds);
			transport_send_messages(wfds);
			if (FD_ISSET(ui_socket, rfds))
				ui_handler();
			if (!app_none && app_socket >= 0 &&
			    FD_ISSET(app_socket, rfds))
				app_handler();
		}
		timer_handle_expirations();
	}
}
Exemplo n.º 7
0
int
main (int argc, char *argv[])
{
  fd_set *rfds, *wfds;
  int n, m;
  size_t mask_size;
  struct timeval tv, *timeout;

  /* Make sure init() won't alloc fd 0, 1 or 2, as daemon() will close them. */
  for (n = 0; n <= 2; n++)
    if (fcntl (n, F_GETFL, 0) == -1 && errno == EBADF)
      (void)open ("/dev/null", n ? O_WRONLY : O_RDONLY, 0);

  /* Log cmd line parsing and initialization errors to stderr.  */
  log_to (stderr);
  parse_args (argc, argv);
  log_init ();

  /* Do a clean daemon shutdown on TERM reception. (Needed by monitor).  */
  signal (SIGTERM, daemon_shutdown_now);
  if (debug) signal (SIGINT, daemon_shutdown_now);

#if defined (USE_PRIVSEP)
  if (monitor_init ())
    {
      /* The parent, with privileges.  */
      if (!debug)
	if (daemon (0, 0))
	  log_fatal ("main [priv]: daemon (0, 0) failed");

      /* Enter infinite monitor loop.  */
      monitor_loop (debug);
      exit (0); /* Never reached.  */
    }

  /* Child process only from this point on, no privileges left.  */
#endif

  init ();

  if (!debug)
    {
      if (daemon (0, 0))
	log_fatal ("main: daemon (0, 0) failed");
      /* Switch to syslog.  */
      log_to (0);
    }

  write_pid_file ();

  /* Reinitialize on HUP reception.  */
  signal (SIGHUP, sighup);

  /* Report state on USR1 reception.  */
  signal (SIGUSR1, sigusr1);

  /* Rehash soft expiration timers on USR2 reception.  */
  signal (SIGUSR2, sigusr2);

#if defined (USE_DEBUG)
  /* If we wanted IKE packet capture to file, initialize it now.  */
  if (pcap_file != 0)
    log_packet_init (pcap_file);
#endif

  /* Allocate the file descriptor sets just big enough.  */
  n = getdtablesize ();
  mask_size = howmany (n, NFDBITS) * sizeof (fd_mask);
  rfds = (fd_set *)malloc (mask_size);
  if (!rfds)
    log_fatal ("main: malloc (%lu) failed", (unsigned long)mask_size);
  wfds = (fd_set *)malloc (mask_size);
  if (!wfds)
    log_fatal ("main: malloc (%lu) failed", (unsigned long)mask_size);

  while (1)
    {
      /* If someone has sent SIGHUP to us, reconfigure.  */
      if (sighupped)
	{
	  log_print ("SIGHUP received");
	  reinit ();
	  sighupped = 0;
	}

      /* and if someone sent SIGUSR1, do a state report.  */
      if (sigusr1ed)
	{
	  log_print ("SIGUSR1 received");
	  report ();
	}

      /* and if someone sent SIGUSR2, do a timer rehash.  */
      if (sigusr2ed)
	{
	  log_print ("SIGUSR2 received");
	  rehash_timers ();
	}

      /*
       * and if someone set 'sigtermed' (SIGTERM or via the UI), this
       * indicated we should start a shutdown of the daemon.
       *
       * Note: Since _one_ message is sent per iteration of this enclosing
       * while-loop, and we want to send a number of DELETE notifications,
       * we must loop atleast this number of times. The daemon_shutdown()
       * function starts by queueing the DELETEs, all other calls just
       * increments the 'sigtermed' variable until it reaches a "safe"
       * value, and the daemon exits.
       */
      if (sigtermed)
	daemon_shutdown ();

      /* Setup the descriptors to look for incoming messages at.  */
      memset (rfds, 0, mask_size);
      n = transport_fd_set (rfds);
      FD_SET (ui_socket, rfds);
      if (ui_socket + 1 > n)
	n = ui_socket + 1;

      /*
       * XXX Some day we might want to deal with an abstract application
       * class instead, with many instantiations possible.
       */
      if (!app_none && app_socket >= 0)
	{
	  FD_SET (app_socket, rfds);
	  if (app_socket + 1 > n)
	    n = app_socket + 1;
	}

      /* Setup the descriptors that have pending messages to send.  */
      memset (wfds, 0, mask_size);
      m = transport_pending_wfd_set (wfds);
      if (m > n)
	n = m;

      /* Find out when the next timed event is.  */
      timeout = &tv;
      timer_next_event (&timeout);

      n = select (n, rfds, wfds, 0, timeout);
      if (n == -1)
	{
	  if (errno != EINTR)
	    {
	      log_error ("select");

	      /*
	       * In order to give the unexpected error condition time to
	       * resolve without letting this process eat up all available CPU
	       * we sleep for a short while.
	       */
	      sleep (1);
	    }
	}
      else if (n)
	{
	  transport_handle_messages (rfds);
	  transport_send_messages (wfds);
	  if (FD_ISSET (ui_socket, rfds))
	    ui_handler ();
	  if (!app_none && app_socket >= 0 && FD_ISSET (app_socket, rfds))
	    app_handler ();
	}
      timer_handle_expirations ();
    }
}