Implement latency tracking, internal event log and watchdog

  u32 gr_wait;				/* Graceful restart wait timeout */

  int cli_debug;			/* Tracing of CLI connections and commands */

  int latency_debug;			/* I/O loop tracks duration of each event */

  u32 latency_limit;			/* Events with longer duration are logged (us) */

  u32 watchdog_warning;			/* I/O loop watchdog limit for warning (us) */

  u32 watchdog_timeout;			/* Watchdog timeout (in seconds, 0 = disabled) */

  char *err_msg;			/* Parser error message */

  int err_lino;				/* Line containing error */

  char *err_file_name;			/* File name containing error */

# Turn on global debugging of all protocols

#debug protocols all;

# Turn on internal watchdog

#watchdog warning 5 s;

#watchdog timeout 30 s;

# The direct protocol automatically generates device routes to

# all network interfaces. Can exist in as many instances as you wish

# if you want to populate multiple routing tables with device routes.

	of connects and disconnects, 2 and higher for logging of all client

	commands). Default: 0.

	<tag>debug latency <m/switch/</tag>

	Activate tracking of elapsed time for internal events. Recent events

	could be examined using <cf/dump events/ command. Default: off.

	<tag>debug latency limit <m/time/</tag>

	If <cf/debug latency/ is enabled, this option allows to specify a limit

	for elapsed time. Events exceeding the limit are logged. Default: 1 s.

	<tag>watchdog warning <m/time/</tag>

	Set time limit for I/O loop cycle. If one iteration took more time to

	complete, a warning is logged. Default: 5 s.

	<tag>watchdog timeout <m/time/</tag>

	Set time limit for I/O loop cycle. If the limit is breached, BIRD is

	killed by abort signal. The timeout has effective granularity of

	seconds, zero means disabled. Default: disabled (0).

	<tag>mrtdump "<m/filename/"</tag>

	Set MRTdump file name. This option must be specified to allow MRTdump

	feature. Default: no dump file.

  ev_enqueue(&global_event_list, e);

}

void io_log_event(void *hook, void *data);

/**

 * ev_run_list - run an event list

 * @l: an event list

  WALK_LIST_FIRST(n, tmp_list)

    {

      event *e = SKIP_BACK(event, n, n);

      /* This is ugly hack, we want to log just events executed from the main I/O loop */

      if (l == &global_event_list)

	io_log_event(e->hook, e->data);

      ev_run(e);

    }

  return !EMPTY_LIST(*l);

{ rdump(&root_pool); cli_msg(0, ""); } ;

CF_CLI(DUMP SOCKETS,,, [[Dump open sockets]])

{ sk_dump_all(); cli_msg(0, ""); } ;

CF_CLI(DUMP EVENTS,,, [[Dump event log]])

{ io_log_dump(); cli_msg(0, ""); } ;

CF_CLI(DUMP INTERFACES,,, [[Dump interface information]])

{ if_dump_all(); cli_msg(0, ""); } ;

CF_CLI(DUMP NEIGHBORS,,, [[Dump neighbor cache]])