2 This file is part of GNUnet
3 Copyright (C) 2008--2014, 2016 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
17 * @file nse/gnunet-nse.c
18 * @brief Program to display network size estimates from the NSE service
19 * @author Sree Harsha Totakura <sreeharsha@totakura.in>
23 #include "gnunet_nse_service.h"
26 * The handle to the NSE service
28 static struct GNUNET_NSE_Handle *nse;
31 * The program status; 0 for success.
37 * Task to shutdown and clean up all state
42 do_shutdown (void *cls)
46 GNUNET_NSE_disconnect (nse);
53 * Callback to call when network size estimate is updated.
56 * @param timestamp server timestamp
57 * @param estimate the value of the current network size estimate
58 * @param std_dev standard deviation (rounded down to nearest integer)
59 * of the size estimation values seen
62 handle_estimate (void *cls,
63 struct GNUNET_TIME_Absolute timestamp,
68 FPRINTF (stdout, "%llu %f %f %f\n",
69 (unsigned long long) timestamp.abs_value_us,
70 GNUNET_NSE_log_estimate_to_n (estimate),
77 * Actual main function that runs the emulation.
80 * @param args remaining args, unused
81 * @param cfgfile name of the configuration
82 * @param cfg configuration handle
88 const struct GNUNET_CONFIGURATION_Handle *cfg)
90 nse = GNUNET_NSE_connect (cfg,
93 GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
101 * @return 0 on success
107 static struct GNUNET_GETOPT_CommandLineOption options[] = {
108 GNUNET_GETOPT_OPTION_END
113 GNUNET_PROGRAM_run (argc,
117 ("Show network size estimates from NSE service."),