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, 600)
  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 /**
  52  * Check whether peers successfully shut down.
  53  */
  54 void shutdown_callback (void *cls,
  55                         const char *emsg)
  56 {
  57   if (emsg != NULL)
  58     {
  59 #if VERBOSE
  60       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  61                   "Shutdown of peers failed!\n");
  62 #endif
  63       if (ok == 0)
  64         ok = 666;
  65     }
  66   else
  67     {
  68 #if VERBOSE
  69       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  70                   "All peers successfully shut down!\n");
  71 #endif
  72     }
  73 }
  74
  75 static void
  76 clean_up_task (void *cls,
  77                  const struct GNUNET_SCHEDULER_TaskContext *tc)
  78 {
  79   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
  80   ok = 0;
  81 }
  82
  83
  84 static void
  85 notify_connect_complete(void *cls,
  86                         const struct GNUNET_PeerIdentity *first,
  87                         const struct GNUNET_PeerIdentity *second,
  88                         unsigned int distance,
  89                         const struct GNUNET_CONFIGURATION_Handle *first_cfg,
  90                         const struct GNUNET_CONFIGURATION_Handle *second_cfg,
  91                         struct GNUNET_TESTING_Daemon *first_daemon,
  92                         struct GNUNET_TESTING_Daemon *second_daemon,
  93                         const char *emsg)
  94 {
  95   if (NULL != emsg)
  96     {
  97       fprintf (stderr,
  98                "Failed to connect two peers: %s\n",
  99                emsg);
 100       GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 101       GNUNET_assert (0);
 102       return;
 103     }
 104   connect_left--;
 105   if (connect_left == 0)
 106     {
 107       /* FIXME: check that topology adds a few more links
 108          in addition to those that were seeded */
 109       GNUNET_SCHEDULER_add_now (&clean_up_task,
 110                                 NULL);
 111     }
 112 }
 113
 114
 115 static void my_cb(void *cls,
 116                    const struct GNUNET_PeerIdentity *id,
 117                    const struct GNUNET_CONFIGURATION_Handle *cfg,
 118                    struct GNUNET_TESTING_Daemon *d,
 119                    const char *emsg)
 120 {
 121   GNUNET_assert (id != NULL);
 122   peers_left--;
 123   if (first == NULL)
 124     {
 125       connect_left = NUM_PEERS;
 126       first = d;
 127       last = d;
 128       return;
 129     }
 130   GNUNET_TESTING_daemons_connect (last, d, TIMEOUT, CONNECT_ATTEMPTS,
 131                                   GNUNET_YES,
 132                                   &notify_connect_complete,
 133                                   NULL);
 134   if (peers_left == 0)
 135     {
 136       /* close circle */
 137       GNUNET_TESTING_daemons_connect (d, first, TIMEOUT, CONNECT_ATTEMPTS,
 138                                       GNUNET_YES,
 139                                       &notify_connect_complete,
 140                                       NULL);
 141     }
 142 }
 143
 144
 145 static void
 146 run (void *cls,
 147      char *const *args,
 148      const char *cfgfile,
 149      const struct GNUNET_CONFIGURATION_Handle *cfg)
 150 {
 151   ok = 1;
 152 #if VERBOSE
 153   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 154               "Starting daemons.\n");
 155 #endif
 156   peers_left = NUM_PEERS;
 157   pg = GNUNET_TESTING_daemons_start (cfg,
 158                                      peers_left,
 159                                      peers_left,
 160                                      peers_left,
 161                                      TIMEOUT,
 162                                      NULL, NULL,
 163                                      &my_cb, NULL, NULL, NULL, NULL);
 164   GNUNET_assert (pg != NULL);
 165 }
 166
 167 static int
 168 check ()
 169 {
 170   char *const argv[] = { "test-testing",
 171     "-c",
 172     "test_gnunet_daemon_topology_data.conf",
 173 #if VERBOSE
 174     "-L", "DEBUG",
 175 #endif
 176     NULL
 177   };
 178   struct GNUNET_GETOPT_CommandLineOption options[] = {
 179     GNUNET_GETOPT_OPTION_END
 180   };
 181   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 182                       argv, "test-gnunet-daemon-topology", "nohelp",
 183                       options, &run, &ok);
 184   return ok;
 185 }
 186
 187 int
 188 main (int argc, char *argv[])
 189 {
 190   int ret;
 191
 192   GNUNET_log_setup ("test-gnunet-daemon-topology",
 193 #if VERBOSE
 194                     "DEBUG",
 195 #else
 196                     "WARNING",
 197 #endif
 198                     NULL);
 199   ret = check ();
 200   sleep (1); /* FIXME: needed? */
 201   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-topology");
 202   return ret;
 203 }
 204
 205 /* end of test_gnunet_daemon_topology.c */