src/hostlist/test_gnunet_daemon_hostlist_reconnect.c

   1 /*
   2      This file is part of GNUnet
   3      Copyright (C) 2010, 2016 GNUnet e.V.
   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., 51 Franklin Street, Fifth Floor,
  18      Boston, MA 02110-1301, USA.
  19 */
  20 /**
  21  * @file hostlist/test_gnunet_daemon_hostlist_reconnect.c
  22  * @brief test for gnunet-daemon-hostslist.c; tries to re-start the peers
  23  *        and connect a second time
  24  * @author Christian Grothoff
  25  */
  26 #include "platform.h"
  27 #include "gnunet_util_lib.h"
  28 #include "gnunet_arm_service.h"
  29 #include "gnunet_transport_core_service.h"
  30 #include "gnunet_transport_hello_service.h"
  31
  32 /**
  33  * How long until we give up on transmitting the message?
  34  */
  35 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 150)
  36
  37 static int ok;
  38
  39 static struct GNUNET_SCHEDULER_Task *timeout_task;
  40
  41 struct PeerContext
  42 {
  43   struct GNUNET_CONFIGURATION_Handle *cfg;
  44   struct GNUNET_TRANSPORT_CoreHandle *th;
  45   struct GNUNET_MessageHeader *hello;
  46   struct GNUNET_TRANSPORT_HelloGetHandle *ghh;
  47   struct GNUNET_OS_Process *arm_proc;
  48 };
  49
  50 static struct PeerContext p1;
  51
  52 static struct PeerContext p2;
  53
  54
  55 /**
  56  * Timeout, give up.
  57  */
  58 static void
  59 timeout_error (void *cls)
  60 {
  61   timeout_task = NULL;
  62   GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
  63               "Timeout trying to connect peers, test failed.\n");
  64   GNUNET_SCHEDULER_shutdown ();
  65 }
  66
  67
  68 /**
  69  * Function called to notify transport users that another
  70  * peer connected to us.
  71  *
  72  * @param cls closure
  73  * @param peer the peer that connected
  74  * @param mq message queue to send to @a peer
  75  * @return NULL
  76  */
  77 static void *
  78 notify_connect (void *cls,
  79                 const struct GNUNET_PeerIdentity *peer,
  80                 struct GNUNET_MQ_Handle *mq)
  81 {
  82   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  83               "Peers connected, shutting down.\n");
  84   ok = 0;
  85   GNUNET_SCHEDULER_shutdown ();
  86   return NULL;
  87 }
  88
  89
  90 static void
  91 process_hello (void *cls,
  92                const struct GNUNET_MessageHeader *message)
  93 {
  94   struct PeerContext *p = cls;
  95
  96   GNUNET_TRANSPORT_hello_get_cancel (p->ghh);
  97   p->ghh = NULL;
  98   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
  99               "Received HELLO, starting hostlist service.\n");
 100 }
 101
 102
 103 static void
 104 setup_peer (struct PeerContext *p,
 105             const char *cfgname)
 106 {
 107   char *binary;
 108
 109   binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-arm");
 110   p->cfg = GNUNET_CONFIGURATION_create ();
 111   p->arm_proc =
 112     GNUNET_OS_start_process (GNUNET_YES,
 113                              GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
 114                              NULL,
 115                              NULL,
 116                              NULL,
 117                              binary,
 118                              "gnunet-service-arm",
 119                              "-c",
 120                              cfgname,
 121                              NULL);
 122   GNUNET_assert (GNUNET_OK ==
 123                  GNUNET_CONFIGURATION_load (p->cfg,
 124                                             cfgname));
 125   p->th = GNUNET_TRANSPORT_core_connect (p->cfg,
 126                                          NULL,
 127                                          NULL,
 128                                          p,
 129                                          &notify_connect,
 130                                          NULL,
 131                                          NULL);
 132   GNUNET_assert (NULL != p->th);
 133   p->ghh = GNUNET_TRANSPORT_hello_get (p->cfg,
 134                                        GNUNET_TRANSPORT_AC_ANY,
 135                                        &process_hello,
 136                                        p);
 137   GNUNET_free (binary);
 138 }
 139
 140
 141 static void
 142 waitpid_task (void *cls)
 143 {
 144   struct PeerContext *p = cls;
 145
 146   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 147               "Killing ARM process.\n");
 148   if (0 != GNUNET_OS_process_kill (p->arm_proc,
 149                                    GNUNET_TERM_SIG))
 150     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
 151                          "kill");
 152   if (GNUNET_OK !=
 153       GNUNET_OS_process_wait (p->arm_proc))
 154     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
 155                          "waitpid");
 156   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 157               "ARM process %u stopped\n",
 158               GNUNET_OS_process_get_pid (p->arm_proc));
 159   GNUNET_OS_process_destroy (p->arm_proc);
 160   p->arm_proc = NULL;
 161   GNUNET_CONFIGURATION_destroy (p->cfg);
 162 }
 163
 164
 165 static void
 166 stop_arm (struct PeerContext *p)
 167 {
 168   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 169               "Asking ARM to stop core service\n");
 170   GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 171                                 &waitpid_task,
 172                                 p);
 173 }
 174
 175
 176 /**
 177  * Try again to connect to transport service.
 178  */
 179 static void
 180 shutdown_task (void *cls)
 181 {
 182   if (NULL != timeout_task)
 183   {
 184     GNUNET_SCHEDULER_cancel (timeout_task);
 185     timeout_task = NULL;
 186   }
 187   if (NULL != p1.ghh)
 188   {
 189     GNUNET_TRANSPORT_hello_get_cancel (p1.ghh);
 190     p1.ghh = NULL;
 191   }
 192   if (NULL != p1.th)
 193   {
 194     GNUNET_TRANSPORT_core_disconnect (p1.th);
 195     p1.th = NULL;
 196   }
 197   if (NULL != p2.ghh)
 198   {
 199     GNUNET_TRANSPORT_hello_get_cancel (p2.ghh);
 200     p2.ghh = NULL;
 201   }
 202   if (NULL != p2.th)
 203   {
 204     GNUNET_TRANSPORT_core_disconnect (p2.th);
 205     p2.th = NULL;
 206   }
 207   stop_arm (&p1);
 208   stop_arm (&p2);
 209 }
 210
 211
 212 static void
 213 run (void *cls,
 214      char *const *args,
 215      const char *cfgfile,
 216      const struct GNUNET_CONFIGURATION_Handle *cfg)
 217 {
 218   GNUNET_assert (ok == 1);
 219   ok++;
 220   timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
 221                                                &timeout_error,
 222                                                NULL);
 223   GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
 224                                  NULL);
 225   setup_peer (&p1,
 226               "test_gnunet_daemon_hostlist_peer1.conf");
 227   setup_peer (&p2,
 228               "test_gnunet_daemon_hostlist_peer2.conf");
 229 }
 230
 231
 232 int
 233 main (int argcx,
 234       char *argvx[])
 235 {
 236   static char *const argv[] = {
 237     "test-gnunet-daemon-hostlist",
 238     "-c", "test_gnunet_daemon_hostlist_data.conf",
 239     NULL
 240   };
 241   static struct GNUNET_GETOPT_CommandLineOption options[] = {
 242     GNUNET_GETOPT_OPTION_END
 243   };
 244
 245   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-hostlist-peer-1");
 246   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-hostlist-peer-2");
 247   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-hostlist-peer-3");
 248   GNUNET_log_setup ("test-gnunet-daemon-hostlist",
 249                     "WARNING",
 250                     NULL);
 251   ok = 1;
 252   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 253                       argv,
 254                       "test-gnunet-daemon-hostlist",
 255                       "nohelp",
 256                       options,
 257                       &run,
 258                       &ok);
 259   if (0 == ok)
 260   {
 261     FPRINTF (stderr, "%s",  ".");
 262     /* now do it again */
 263     ok = 1;
 264     GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
 265                         argv,
 266                         "test-gnunet-daemon-hostlist",
 267                         "nohelp",
 268                         options,
 269                         &run,
 270                         &ok);
 271     FPRINTF (stderr,
 272              "%s",
 273              ".\n");
 274   }
 275   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-hostlist-peer-1");
 276   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-hostlist-peer-2");
 277   GNUNET_DISK_directory_remove ("/tmp/test-gnunet-hostlist-peer-3");
 278   return ok;
 279 }
 280
 281 /* end of test_gnunet_daemon_hostlist_reconnect.c */