src/topology/test_gnunet_daemon_topology.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2009 Christian Grothoff (and other contributing authors)
   4
   5      GNUnet is free software; you can redistribute it and/or modify
   6      it under the terms of the GNU General Public License as published
   7      by the Free Software Foundation; either version 3, or (at your
   8      option) any later version.
   9
  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      General Public License for more details.
  14
  15      You should have received a copy of the GNU General Public License
  16      along with GNUnet; see the file COPYING.  If not, write to the
  17      Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18      Boston, MA 02111-1307, USA.
  19 */
  20 /**
  21  * @file topology/test_gnunet_daemon_topology.c
  22  * @brief testcase for topology maintenance code
  23  */
  24 #include "platform.h"
  25 #include "gnunet_testing_lib.h"
  26
  27 #define VERBOSE GNUNET_NO
  28
  29 #define NUM_PEERS 2
  30
  31 /**
  32  * How long until we give up on connecting the peers?
  33  */
  34 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
  35
  36 #define CONNECT_ATTEMPTS 3
  37
  38
  39 static int ok;
  40
  41 static int peers_left;
  42
  43 static int connect_left;
  44
  45 static struct GNUNET_TESTING_PeerGroup *pg;
  46
  47 static struct GNUNET_TESTING_Daemon *first;
  48
  49 static struct GNUNET_TESTING_Daemon *last;
  50
  51 static struct GNUNET_SCHEDULER_Handle *sched;
  52
  53 /**
  54  * Check whether peers successfully shut down.
  55  */
  56 void shutdown_callback (void *cls,
  57                         const char *emsg)
  58 {
  59   if (emsg != NULL)
  60     {
  61 #if VERBOSE
  62       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  63                   "Shutdown of peers failed!\n");
  64 #endif
  65       if (ok == 0)
  66         ok = 666;
  67     }
  68   else
  69     {
  70 #if VERBOSE
  71       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  72                   "All peers successfully shut down!\n");
  73 #endif
  74     }
  75 }
  76
  77 static void
  78 clean_up_task (void *cls,
  79                  const struct GNUNET_SCHEDULER_TaskContext *tc)
  80 {
  81   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
  82   ok = 0;
  83 }
  84
  85
  86 static void
  87 notify_connect_complete(void *cls,
  88                         const struct GNUNET_PeerIdentity *first,
  89                         const struct GNUNET_PeerIdentity *second,
  90                         unsigned int distance,
  91                         const struct GNUNET_CONFIGURATION_Handle *first_cfg,
  92                         const struct GNUNET_CONFIGURATION_Handle *second_cfg,
  93                         struct GNUNET_TESTING_Daemon *first_daemon,
  94                         struct GNUNET_TESTING_Daemon *second_daemon,
  95                         const char *emsg)
  96 {
  97   if (NULL != emsg)
  98     {
  99       fprintf (stderr,
 100                "Failed to connect two peers: %s\n",
 101                emsg);
 102       GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 103       GNUNET_assert (0);
 104       return;
 105     }
 106   connect_left--;
 107   if (connect_left == 0)
 108     {
 109       /* FIXME: check that topology adds a few more links
 110          in addition to those that were seeded */
 111       GNUNET_SCHEDULER_add_now (sched,
 112                                 &clean_up_task,
 113                                 NULL);
 114     }
 115 }
 116
 117
 118 static void my_cb(void *cls,
 119                    const struct GNUNET_PeerIdentity *id,
 120                    const struct GNUNET_CONFIGURATION_Handle *cfg,
 121                    struct GNUNET_TESTING_Daemon *d,
 122                    const char *emsg)
 123 {
 124   GNUNET_assert (id != NULL);
 125   peers_left--;
 126   if (first == NULL)
 127     {
 128       connect_left = NUM_PEERS;
 129       first = d;
 130       last = d;
 131       return;
 132     }
 133   GNUNET_TESTING_daemons_connect (last, d, TIMEOUT, CONNECT_ATTEMPTS,
 134                                   &notify_connect_complete,
 135                                   NULL);
 136   if (peers_left == 0)
 137     {
 138       /* close circle */
 139       GNUNET_TESTING_daemons_connect (d, first, TIMEOUT, CONNECT_ATTEMPTS,
 140                                       &notify_connect_complete,
 141                                       NULL);
 142     }
 143 }
 144
 145
 146 static void
 147 run (void *cls,
 148      struct GNUNET_SCHEDULER_Handle *s,
 149      char *const *args,
 150      const char *cfgfile,
 151      const struct GNUNET_CONFIGURATION_Handle *cfg)
 152 {
 153   sched = s;
 154   ok = 1;
 155 #if VERBOSE
 156   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 157               "Starting daemons.\n");
 158 #endif
 159   peers_left = NUM_PEERS;
 160   pg = GNUNET_TESTING_daemons_start (sched, cfg,
 161                                      peers_left,
 162                                      TIMEOUT,
 163                                      NULL, NULL,
 164                                      &my_cb, NULL, NULL, NULL, NULL);
 165   GNUNET_assert (pg != NULL);
 166 }
 167
 168 static int
 169 check ()
 170 {
 171   char *const argv[] = { "test-testing",
 172     "-c",
 173     "test_gnunet_daemon_topology_data.conf",
 174 #if VERBOSE
 175     "-L", "DEBUG",
 176 #endif
 177     NULL
 178   };
 179   struct GNUNET_GETOPT_CommandLineOption options[] = {
 180     GNUNET_GETOPT_OPTION_END
 181   };
 182   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 183                       argv, "test-gnunet-daemon-topology", "nohelp",
 184                       options, &run, &ok);
 185   return ok;
 186 }
 187
 188 int
 189 main (int argc, char *argv[])
 190 {
 191   int ret;
 192
 193   GNUNET_log_setup ("test-gnunet-daemon-topology",
 194 #if VERBOSE
 195                     "DEBUG",
 196 #else
 197                     "WARNING",
 198 #endif
 199                     NULL);
 200   ret = check ();
 201   sleep (1); /* FIXME: needed? */
 202   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-topology");
 203   return ret;
 204 }
 205
 206 /* end of test_gnunet_daemon_topology.c */