src/fs/test_fs_download_persistence.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2004, 2005, 2006, 2008, 2009, 2010 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 2, 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 /**
  22  * @file fs/test_fs_download_persistence.c
  23  * @brief simple testcase for persistence of simple download operation
  24  * @author Christian Grothoff
  25  */
  26
  27 #include "platform.h"
  28 #include "gnunet_util_lib.h"
  29 #include "gnunet_arm_service.h"
  30 #include "gnunet_fs_service.h"
  31
  32 #define VERBOSE GNUNET_NO
  33
  34 #define START_ARM GNUNET_YES
  35
  36 /**
  37  * File-size we use for testing.
  38  */
  39 #define FILESIZE (1024 * 1024 * 2)
  40
  41 /**
  42  * How long until we give up on transmitting the message?
  43  */
  44 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
  45
  46 /**
  47  * How long should our test-content live?
  48  */
  49 #define LIFETIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 15)
  50
  51 struct PeerContext
  52 {
  53   struct GNUNET_CONFIGURATION_Handle *cfg;
  54 #if START_ARM
  55   pid_t arm_pid;
  56 #endif
  57 };
  58
  59 static struct PeerContext p1;
  60
  61 static struct GNUNET_TIME_Absolute start;
  62
  63 static struct GNUNET_SCHEDULER_Handle *sched;
  64
  65 static const struct GNUNET_CONFIGURATION_Handle *cfg;
  66
  67 static struct GNUNET_FS_Handle *fs;
  68
  69 static struct GNUNET_FS_DownloadContext *download;
  70
  71 static struct GNUNET_FS_PublishContext *publish;
  72
  73 static GNUNET_SCHEDULER_TaskIdentifier timeout_kill;
  74
  75 static char *fn;
  76
  77 static int err;
  78
  79 static void
  80 timeout_kill_task (void *cls,
  81                    const struct GNUNET_SCHEDULER_TaskContext *tc)
  82 {
  83   if (download != NULL)
  84     {
  85       GNUNET_FS_download_stop (download, GNUNET_YES);
  86       download = NULL;
  87     }
  88   else if (publish != NULL)
  89     {
  90       GNUNET_FS_publish_stop (publish);
  91       publish = NULL;
  92     }
  93   timeout_kill = GNUNET_SCHEDULER_NO_TASK;
  94   err = 1;
  95 }
  96
  97 static void
  98 abort_publish_task (void *cls,
  99                      const struct GNUNET_SCHEDULER_TaskContext *tc)
 100 {
 101   if (publish != NULL)
 102     {
 103       GNUNET_FS_publish_stop (publish);
 104       publish = NULL;
 105     }
 106 }
 107
 108
 109 static void
 110 abort_download_task (void *cls,
 111                      const struct GNUNET_SCHEDULER_TaskContext *tc)
 112 {
 113   uint64_t size;
 114
 115   if (download != NULL)
 116     {
 117       GNUNET_FS_download_stop (download, GNUNET_YES);
 118       download = NULL;
 119     }
 120   GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_size (fn, &size, GNUNET_YES));
 121   GNUNET_assert (size == FILESIZE);
 122   GNUNET_DISK_directory_remove (fn);
 123   GNUNET_free (fn);
 124   fn = NULL;
 125   GNUNET_SCHEDULER_cancel (sched, timeout_kill);
 126   timeout_kill = GNUNET_SCHEDULER_NO_TASK;
 127 }
 128
 129
 130 static void *
 131 progress_cb (void *cls,
 132              const struct GNUNET_FS_ProgressInfo *event);
 133
 134
 135 static void
 136 restart_fs_task (void *cls,
 137                  const struct GNUNET_SCHEDULER_TaskContext *tc)
 138 {
 139   GNUNET_FS_stop (fs);
 140   fs = GNUNET_FS_start (sched,
 141                         cfg,
 142                         "test-fs-download-persistence",
 143                         &progress_cb,
 144                         NULL,
 145                         GNUNET_FS_FLAGS_PERSISTENCE,
 146                         GNUNET_FS_OPTIONS_END);
 147 }
 148
 149
 150 /**
 151  * Consider scheduling the restart-task.
 152  * Only runs the restart task once per event
 153  * category.
 154  *
 155  * @param ev type of the event to consider
 156  */
 157 static void
 158 consider_restart (int ev)
 159 {
 160   static int prev[32];
 161   static int off;
 162   int i;
 163   for (i=0;i<off;i++)
 164     if (prev[i] == ev)
 165       return;
 166   prev[off++] = ev;
 167   GNUNET_SCHEDULER_add_with_priority (sched,
 168                                       GNUNET_SCHEDULER_PRIORITY_URGENT,
 169                                       &restart_fs_task,
 170                                       NULL);
 171 }
 172
 173
 174 static void *
 175 progress_cb (void *cls,
 176              const struct GNUNET_FS_ProgressInfo *event)
 177 {
 178
 179   switch (event->status)
 180     {
 181     case GNUNET_FS_STATUS_PUBLISH_PROGRESS:
 182 #if VERBOSE
 183       printf ("Publish is progressing (%llu/%llu at level %u off %llu)...\n",
 184               (unsigned long long) event->value.publish.completed,
 185               (unsigned long long) event->value.publish.size,
 186               event->value.publish.specifics.progress.depth,
 187               (unsigned long long) event->value.publish.specifics.progress.offset);
 188 #endif
 189       break;
 190     case GNUNET_FS_STATUS_PUBLISH_COMPLETED:
 191       printf ("Publishing complete, %llu kbps.\n",
 192               (unsigned long long) (FILESIZE * 1000LL / (1+GNUNET_TIME_absolute_get_duration (start).value) / 1024LL));
 193       fn = GNUNET_DISK_mktemp ("gnunet-download-test-dst");
 194       start = GNUNET_TIME_absolute_get ();
 195       download = GNUNET_FS_download_start (fs,
 196                                            event->value.publish.specifics.completed.chk_uri,
 197                                            NULL,
 198                                            fn, NULL,
 199                                            0,
 200                                            FILESIZE,
 201                                            1,
 202                                            GNUNET_FS_DOWNLOAD_OPTION_NONE,
 203                                            "download",
 204                                            NULL);
 205       GNUNET_assert (download != NULL);
 206       break;
 207     case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
 208       consider_restart (event->status);
 209       printf ("Download complete,  %llu kbps.\n",
 210               (unsigned long long) (FILESIZE * 1000LL / (1+GNUNET_TIME_absolute_get_duration (start).value) / 1024LL));
 211       GNUNET_SCHEDULER_add_now (sched,
 212                                 &abort_download_task,
 213                                 NULL);
 214       break;
 215     case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
 216       consider_restart (event->status);
 217       GNUNET_assert (download == event->value.download.dc);
 218 #if VERBOSE
 219       printf ("Download is progressing (%llu/%llu at level %u off %llu)...\n",
 220               (unsigned long long) event->value.download.completed,
 221               (unsigned long long) event->value.download.size,
 222               event->value.download.specifics.progress.depth,
 223               (unsigned long long) event->value.download.specifics.progress.offset);
 224 #endif
 225       break;
 226     case GNUNET_FS_STATUS_PUBLISH_ERROR:
 227       fprintf (stderr,
 228                "Error publishing file: %s\n",
 229                event->value.publish.specifics.error.message);
 230       GNUNET_break (0);
 231       GNUNET_SCHEDULER_add_continuation (sched,
 232                                          &abort_publish_task,
 233                                          NULL,
 234                                          GNUNET_SCHEDULER_REASON_PREREQ_DONE);
 235       break;
 236     case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
 237       fprintf (stderr,
 238                "Error downloading file: %s\n",
 239                event->value.download.specifics.error.message);
 240       GNUNET_SCHEDULER_add_now (sched,
 241                                 &abort_download_task,
 242                                 NULL);
 243       break;
 244     case GNUNET_FS_STATUS_DOWNLOAD_ACTIVE:
 245       consider_restart (event->status);
 246       break;
 247     case GNUNET_FS_STATUS_DOWNLOAD_INACTIVE:
 248       consider_restart (event->status);
 249       break;
 250     case GNUNET_FS_STATUS_PUBLISH_START:
 251       GNUNET_assert (0 == strcmp ("publish-context", event->value.publish.cctx));
 252       GNUNET_assert (NULL == event->value.publish.pctx);
 253       GNUNET_assert (FILESIZE == event->value.publish.size);
 254       GNUNET_assert (0 == event->value.publish.completed);
 255       GNUNET_assert (1 == event->value.publish.anonymity);
 256       break;
 257     case GNUNET_FS_STATUS_PUBLISH_STOPPED:
 258       GNUNET_assert (publish == event->value.publish.sc);
 259       GNUNET_assert (FILESIZE == event->value.publish.size);
 260       GNUNET_assert (1 == event->value.publish.anonymity);
 261       GNUNET_FS_stop (fs);
 262       fs = NULL;
 263       break;
 264     case GNUNET_FS_STATUS_DOWNLOAD_START:
 265       consider_restart (event->status);
 266       GNUNET_assert (download == NULL);
 267       GNUNET_assert (0 == strcmp ("download", event->value.download.cctx));
 268       GNUNET_assert (NULL == event->value.download.pctx);
 269       GNUNET_assert (NULL != event->value.download.uri);
 270       GNUNET_assert (0 == strcmp (fn, event->value.download.filename));
 271       GNUNET_assert (FILESIZE == event->value.download.size);
 272       GNUNET_assert (0 == event->value.download.completed);
 273       GNUNET_assert (1 == event->value.download.anonymity);
 274       break;
 275     case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
 276       consider_restart (event->status);
 277       GNUNET_assert (download == event->value.download.dc);
 278       GNUNET_SCHEDULER_add_continuation (sched,
 279                                          &abort_publish_task,
 280                                          NULL,
 281                                          GNUNET_SCHEDULER_REASON_PREREQ_DONE);
 282       break;
 283     default:
 284       printf ("Unexpected event: %d\n",
 285               event->status);
 286       break;
 287     }
 288   return NULL;
 289 }
 290
 291
 292 static void
 293 setup_peer (struct PeerContext *p, const char *cfgname)
 294 {
 295   p->cfg = GNUNET_CONFIGURATION_create ();
 296 #if START_ARM
 297   p->arm_pid = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
 298                                         "gnunet-service-arm",
 299 #if VERBOSE
 300                                         "-L", "DEBUG",
 301 #endif
 302                                         "-c", cfgname, NULL);
 303 #endif
 304   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 305 }
 306
 307
 308 static void
 309 stop_arm (struct PeerContext *p)
 310 {
 311 #if START_ARM
 312   if (0 != PLIBC_KILL (p->arm_pid, SIGTERM))
 313     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
 314   if (GNUNET_OS_process_wait(p->arm_pid) != GNUNET_OK)
 315     GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
 316   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 317               "ARM process %u stopped\n", p->arm_pid);
 318 #endif
 319   GNUNET_CONFIGURATION_destroy (p->cfg);
 320 }
 321
 322
 323 static void
 324 run (void *cls,
 325      struct GNUNET_SCHEDULER_Handle *s,
 326      char *const *args,
 327      const char *cfgfile,
 328      const struct GNUNET_CONFIGURATION_Handle *c)
 329 {
 330   const char *keywords[] = {
 331     "down_foo",
 332     "down_bar",
 333   };
 334   char *buf;
 335   struct GNUNET_CONTAINER_MetaData *meta;
 336   struct GNUNET_FS_Uri *kuri;
 337   struct GNUNET_FS_FileInformation *fi;
 338   size_t i;
 339
 340   sched = s;
 341   cfg = c;
 342   setup_peer (&p1, "test_fs_download_data.conf");
 343   fs = GNUNET_FS_start (sched,
 344                         cfg,
 345                         "test-fs-download-persistence",
 346                         &progress_cb,
 347                         NULL,
 348                         GNUNET_FS_FLAGS_PERSISTENCE,
 349                         GNUNET_FS_OPTIONS_END);
 350   GNUNET_assert (NULL != fs);
 351   buf = GNUNET_malloc (FILESIZE);
 352   for (i = 0; i < FILESIZE; i++)
 353     buf[i] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 256);
 354   meta = GNUNET_CONTAINER_meta_data_create ();
 355   kuri = GNUNET_FS_uri_ksk_create_from_args (2, keywords);
 356   fi = GNUNET_FS_file_information_create_from_data (fs,
 357                                                     "publish-context",
 358                                                     FILESIZE,
 359                                                     buf,
 360                                                     kuri,
 361                                                     meta,
 362                                                     GNUNET_NO,
 363                                                     1,
 364                                                     42,
 365                                                     GNUNET_TIME_relative_to_absolute (LIFETIME));
 366   GNUNET_FS_uri_destroy (kuri);
 367   GNUNET_CONTAINER_meta_data_destroy (meta);
 368   GNUNET_assert (NULL != fi);
 369   timeout_kill = GNUNET_SCHEDULER_add_delayed (sched,
 370                                                TIMEOUT,
 371                                                &timeout_kill_task,
 372                                                NULL);
 373   start = GNUNET_TIME_absolute_get ();
 374   publish = GNUNET_FS_publish_start (fs,
 375                                     fi,
 376                                     NULL, NULL, NULL,
 377                                     GNUNET_FS_PUBLISH_OPTION_NONE);
 378   GNUNET_assert (publish != NULL);
 379 }
 380
 381
 382 int
 383 main (int argc, char *argv[])
 384 {
 385   char *const argvx[] = {
 386     "test-fs-download-persistence",
 387     "-c",
 388     "test_fs_download_data.conf",
 389 #if VERBOSE
 390     "-L", "DEBUG",
 391 #endif
 392     NULL
 393   };
 394   struct GNUNET_GETOPT_CommandLineOption options[] = {
 395     GNUNET_GETOPT_OPTION_END
 396   };
 397
 398   GNUNET_log_setup ("test_fs_download_persistence",
 399 #if VERBOSE
 400                     "DEBUG",
 401 #else
 402                     "WARNING",
 403 #endif
 404                     NULL);
 405   GNUNET_PROGRAM_run ((sizeof (argvx) / sizeof (char *)) - 1,
 406                       argvx, "test-fs-download-persistence",
 407                       "nohelp", options, &run, NULL);
 408   stop_arm (&p1);
 409   GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-download/");
 410   return err;
 411 }
 412
 413 /* end of test_fs_download_persistence.c */