Program to display network size estimates from the NSE service. More...

#include "platform.h"
#include "gnunet_nse_service.h"
#include <gnunet_util_lib.h>

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Functions
static void	do_shutdown (void *cls)
	Task to shutdown and clean up all state. More...

static void	handle_estimate (void *cls, struct GNUNET_TIME_Absolute timestamp, double estimate, double std_dev)
	Callback to call when network size estimate is updated. More...

static void	run (void cls, char const args, const char cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
	Actual main function that runs the emulation. More...

int	main (int argc, char const argv)
	Main function. More...

Variables
static struct GNUNET_NSE_Handle *	nse
	The handle to the NSE service. More...

static int	status
	The program status; 0 for success. More...

static int	monitor
	Monitor flag. More...

Detailed Description

Program to display network size estimates from the NSE service.

Author: Sree Harsha Totakura sreeh.nosp@m.arsh.nosp@m.a@tot.nosp@m.akur.nosp@m.a.in

Definition in file gnunet-nse.c.

Function Documentation

◆ do_shutdown()

static void do_shutdown ( void * cls )

static

Task to shutdown and clean up all state.

Parameters

cls NULL

Definition at line 53 of file gnunet-nse.c.

{
  (void) cls;
  if (NULL != nse)
  {
    GNUNET_NSE_disconnect (nse);
    nse = NULL;
  }
}

References GNUNET_NSE_disconnect(), and nse.

Referenced by run().

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◆ handle_estimate()

static void handle_estimate	(	void *	cls,
		struct GNUNET_TIME_Absolute	timestamp,
		double	estimate,
		double	std_dev
	)

static

Callback to call when network size estimate is updated.

Parameters

cls	NULL
timestamp	server timestamp
estimate	the value of the current network size estimate
std_dev	standard deviation (rounded down to nearest integer) of the size estimation values seen

Definition at line 74 of file gnunet-nse.c.

{
  (void) cls;
  status = 0;
  fprintf (stdout,
           "%s: #peers=%f (ld(#peers)=%f, stddev=%f)\n",
           GNUNET_STRINGS_absolute_time_to_string (timestamp),
           GNUNET_NSE_log_estimate_to_n (estimate),
           estimate,
           std_dev);
  if (! monitor)
    GNUNET_SCHEDULER_shutdown ();
}

References GNUNET_NSE_log_estimate_to_n, GNUNET_SCHEDULER_shutdown(), GNUNET_STRINGS_absolute_time_to_string(), monitor, status, and timestamp().

Referenced by run().

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◆ run()

static void run	(	void *	cls,
		char const	args,
		const char *	cfgfile,
		const struct GNUNET_CONFIGURATION_Handle *	cfg
	)

static

Actual main function that runs the emulation.

Parameters

cls	unused
args	remaining args, unused
cfgfile	name of the configuration
cfg	configuration handle

Definition at line 101 of file gnunet-nse.c.

{
  (void) cls;
  (void) args;
  (void) cfgfile;
  nse = GNUNET_NSE_connect (cfg, &handle_estimate, NULL);
  GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
}

References warningfilter::args, cfg, do_shutdown(), GNUNET_NSE_connect(), GNUNET_SCHEDULER_add_shutdown(), handle_estimate(), and nse.

Referenced by main().

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◆ main()

int main	(	int	argc,
		char const	argv
	)

Main function.

Returns: 0 on success

Definition at line 120 of file gnunet-nse.c.

{
  struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_option_flag ('m',
                               "monitor",
                               gettext_noop (
                                 "Monitor and output current estimates"),
                               &monitor),
    GNUNET_GETOPT_OPTION_END
  };
 
  status = 1;
  if (GNUNET_OK !=
      GNUNET_PROGRAM_run (GNUNET_OS_project_data_gnunet (),
                          argc,
                          argv,
                          "gnunet-nse",
                          gettext_noop (
                            "Show network size estimates from NSE service."),
                          options,
                          &run,
                          NULL))
    return 2;
  return status;
}