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 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 /**
  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   struct GNUNET_OS_Process *arm_proc;
  56 #endif
  57 };
  58
  59 static struct PeerContext p1;
  60
  61 static struct GNUNET_TIME_Absolute start;
  62
  63 static const struct GNUNET_CONFIGURATION_Handle *cfg;
  64
  65 static struct GNUNET_FS_Handle *fs;
  66
  67 static struct GNUNET_FS_DownloadContext *download;
  68
  69 static struct GNUNET_FS_PublishContext *publish;
  70
  71 static GNUNET_SCHEDULER_TaskIdentifier timeout_kill;
  72
  73 static char *fn;
  74
  75 static int err;
  76
  77 static void
  78 timeout_kill_task (void *cls,
  79                    const struct GNUNET_SCHEDULER_TaskContext *tc)
  80 {
  81   GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
  82               "Timeout downloading file\n");
  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 (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_log (GNUNET_ERROR_TYPE_DEBUG,
 140               "Restarting FS.\n");
 141   GNUNET_FS_stop (fs);
 142   fs = GNUNET_FS_start (cfg,
 143                         "test-fs-download-persistence",
 144                         &progress_cb,
 145                         NULL,
 146                         GNUNET_FS_FLAGS_PERSISTENCE,
 147                         GNUNET_FS_OPTIONS_END);
 148 }
 149
 150
 151 /**
 152  * Consider scheduling the restart-task.
 153  * Only runs the restart task once per event
 154  * category.
 155  *
 156  * @param ev type of the event to consider
 157  */
 158 static void
 159 consider_restart (int ev)
 160 {
 161   static int prev[32];
 162   static int off;
 163   int i;
 164   for (i=0;i<off;i++)
 165     if (prev[i] == ev)
 166       return;
 167   prev[off++] = ev;
 168   GNUNET_SCHEDULER_add_with_priority (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   switch (event->status)
 179     {
 180     case GNUNET_FS_STATUS_PUBLISH_PROGRESS:
 181 #if VERBOSE
 182       printf ("Publish is progressing (%llu/%llu at level %u off %llu)...\n",
 183               (unsigned long long) event->value.publish.completed,
 184               (unsigned long long) event->value.publish.size,
 185               event->value.publish.specifics.progress.depth,
 186               (unsigned long long) event->value.publish.specifics.progress.offset);
 187 #endif
 188       break;
 189     case GNUNET_FS_STATUS_PUBLISH_COMPLETED:
 190       printf ("Publishing complete, %llu kbps.\n",
 191               (unsigned long long) (FILESIZE * 1000LL / (1+GNUNET_TIME_absolute_get_duration (start).rel_value) / 1024LL));
 192       fn = GNUNET_DISK_mktemp ("gnunet-download-test-dst");
 193       start = GNUNET_TIME_absolute_get ();
 194       GNUNET_assert (download == NULL);
 195       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       break;
 206     case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
 207       consider_restart (event->status);
 208       printf ("Download complete,  %llu kbps.\n",
 209               (unsigned long long) (FILESIZE * 1000LL / (1+GNUNET_TIME_absolute_get_duration (start).rel_value) / 1024LL));
 210       GNUNET_SCHEDULER_add_now (&abort_download_task,
 211                                 NULL);
 212       break;
 213     case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
 214       consider_restart (event->status);
 215       GNUNET_assert (download == event->value.download.dc);
 216 #if VERBOSE
 217       printf ("Download is progressing (%llu/%llu at level %u off %llu)...\n",
 218               (unsigned long long) event->value.download.completed,
 219               (unsigned long long) event->value.download.size,
 220               event->value.download.specifics.progress.depth,
 221               (unsigned long long) event->value.download.specifics.progress.offset);
 222 #endif
 223       break;
 224     case GNUNET_FS_STATUS_PUBLISH_ERROR:
 225       fprintf (stderr,
 226                "Error publishing file: %s\n",
 227                event->value.publish.specifics.error.message);
 228       GNUNET_break (0);
 229       GNUNET_SCHEDULER_add_continuation (&abort_publish_task,
 230                                          NULL,
 231                                          GNUNET_SCHEDULER_REASON_PREREQ_DONE);
 232       break;
 233     case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
 234       fprintf (stderr,
 235                "Error downloading file: %s\n",
 236                event->value.download.specifics.error.message);
 237       GNUNET_SCHEDULER_add_now (&abort_download_task,
 238                                 NULL);
 239       break;
 240     case GNUNET_FS_STATUS_PUBLISH_SUSPEND:
 241       GNUNET_assert (event->value.publish.pc == publish);
 242       publish = NULL;
 243       break;
 244     case GNUNET_FS_STATUS_PUBLISH_RESUME:
 245       GNUNET_assert (NULL == publish);
 246       publish = event->value.publish.pc;
 247       break;
 248     case GNUNET_FS_STATUS_DOWNLOAD_SUSPEND:
 249       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 250                   "Download suspended.\n");
 251       GNUNET_assert (event->value.download.dc == download);
 252       download = NULL;
 253       break;
 254     case GNUNET_FS_STATUS_DOWNLOAD_RESUME:
 255       GNUNET_assert (NULL == download);
 256       download = event->value.download.dc;
 257       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 258                   "Download resumed.\n");
 259       break;
 260     case GNUNET_FS_STATUS_DOWNLOAD_ACTIVE:
 261       consider_restart (event->status);
 262       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 263                   "Download active.\n");
 264       break;
 265     case GNUNET_FS_STATUS_DOWNLOAD_INACTIVE:
 266       consider_restart (event->status);
 267       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 268                   "Download inactive.\n");
 269       break;
 270     case GNUNET_FS_STATUS_PUBLISH_START:
 271       GNUNET_assert (0 == strcmp ("publish-context", event->value.publish.cctx));
 272       GNUNET_assert (NULL == event->value.publish.pctx);
 273       GNUNET_assert (FILESIZE == event->value.publish.size);
 274       GNUNET_assert (0 == event->value.publish.completed);
 275       GNUNET_assert (1 == event->value.publish.anonymity);
 276       break;
 277     case GNUNET_FS_STATUS_PUBLISH_STOPPED:
 278       GNUNET_assert (publish == event->value.publish.pc);
 279       GNUNET_assert (FILESIZE == event->value.publish.size);
 280       GNUNET_assert (1 == event->value.publish.anonymity);
 281       GNUNET_FS_stop (fs);
 282       fs = NULL;
 283       break;
 284     case GNUNET_FS_STATUS_DOWNLOAD_START:
 285       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 286                   "Download started.\n");
 287       consider_restart (event->status);
 288       GNUNET_assert (download == NULL);
 289       download = event->value.download.dc;
 290       GNUNET_assert (0 == strcmp ("download", event->value.download.cctx));
 291       GNUNET_assert (NULL == event->value.download.pctx);
 292       GNUNET_assert (NULL != event->value.download.uri);
 293       GNUNET_assert (0 == strcmp (fn, event->value.download.filename));
 294       GNUNET_assert (FILESIZE == event->value.download.size);
 295       GNUNET_assert (0 == event->value.download.completed);
 296       GNUNET_assert (1 == event->value.download.anonymity);
 297       break;
 298     case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
 299       GNUNET_assert (download == event->value.download.dc);
 300       GNUNET_SCHEDULER_add_continuation (&abort_publish_task,
 301                                          NULL,
 302                                          GNUNET_SCHEDULER_REASON_PREREQ_DONE);
 303       download = NULL;
 304       break;
 305     default:
 306       printf ("Unexpected event: %d\n",
 307               event->status);
 308       break;
 309     }
 310   return NULL;
 311 }
 312
 313
 314 static void
 315 setup_peer (struct PeerContext *p, const char *cfgname)
 316 {
 317   p->cfg = GNUNET_CONFIGURATION_create ();
 318 #if START_ARM
 319   p->arm_proc = GNUNET_OS_start_process (NULL, NULL, "gnunet-service-arm",
 320                                         "gnunet-service-arm",
 321 #if VERBOSE
 322                                         "-L", "DEBUG",
 323 #endif
 324                                         "-c", cfgname, NULL);
 325 #endif
 326   GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
 327 }
 328
 329
 330 static void
 331 stop_arm (struct PeerContext *p)
 332 {
 333 #if START_ARM
 334   if (NULL != p->arm_proc)
 335     {
 336       if (0 != GNUNET_OS_process_kill (p->arm_proc, SIGTERM))
 337         GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
 338       if (GNUNET_OS_process_wait(p->arm_proc) != GNUNET_OK)
 339         GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
 340       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 341                   "ARM process %u stopped\n", GNUNET_OS_process_get_pid (p->arm_proc));
 342       GNUNET_OS_process_close (p->arm_proc);
 343       p->arm_proc = NULL;
 344     }
 345 #endif
 346   GNUNET_CONFIGURATION_destroy (p->cfg);
 347 }
 348
 349
 350 static void
 351 run (void *cls,
 352      char *const *args,
 353      const char *cfgfile,
 354      const struct GNUNET_CONFIGURATION_Handle *c)
 355 {
 356   const char *keywords[] = {
 357     "down_foo",
 358     "down_bar",
 359   };
 360   char *buf;
 361   struct GNUNET_CONTAINER_MetaData *meta;
 362   struct GNUNET_FS_Uri *kuri;
 363   struct GNUNET_FS_FileInformation *fi;
 364   size_t i;
 365   struct GNUNET_FS_BlockOptions bo;
 366
 367   cfg = c;
 368   setup_peer (&p1, "test_fs_download_data.conf");
 369   fs = GNUNET_FS_start (cfg,
 370                         "test-fs-download-persistence",
 371                         &progress_cb,
 372                         NULL,
 373                         GNUNET_FS_FLAGS_PERSISTENCE,
 374                         GNUNET_FS_OPTIONS_END);
 375   GNUNET_assert (NULL != fs);
 376   buf = GNUNET_malloc (FILESIZE);
 377   for (i = 0; i < FILESIZE; i++)
 378     buf[i] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 256);
 379   meta = GNUNET_CONTAINER_meta_data_create ();
 380   kuri = GNUNET_FS_uri_ksk_create_from_args (2, keywords);
 381   bo.content_priority = 42;
 382   bo.anonymity_level = 1;
 383   bo.replication_level = 0;
 384   bo.expiration_time = GNUNET_TIME_relative_to_absolute (LIFETIME);
 385   fi = GNUNET_FS_file_information_create_from_data (fs,
 386                                                     "publish-context",
 387                                                     FILESIZE,
 388                                                     buf,
 389                                                     kuri,
 390                                                     meta,
 391                                                     GNUNET_NO,
 392                                                     &bo);
 393   GNUNET_FS_uri_destroy (kuri);
 394   GNUNET_CONTAINER_meta_data_destroy (meta);
 395   GNUNET_assert (NULL != fi);
 396   timeout_kill = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
 397                                                &timeout_kill_task,
 398                                                NULL);
 399   start = GNUNET_TIME_absolute_get ();
 400   publish = GNUNET_FS_publish_start (fs,
 401                                     fi,
 402                                     NULL, NULL, NULL,
 403                                     GNUNET_FS_PUBLISH_OPTION_NONE);
 404   GNUNET_assert (publish != NULL);
 405 }
 406
 407
 408 int
 409 main (int argc, char *argv[])
 410 {
 411   char *const argvx[] = {
 412     "test-fs-download-persistence",
 413     "-c",
 414     "test_fs_download_data.conf",
 415 #if VERBOSE
 416     "-L", "DEBUG",
 417 #endif
 418     NULL
 419   };
 420   struct GNUNET_GETOPT_CommandLineOption options[] = {
 421     GNUNET_GETOPT_OPTION_END
 422   };
 423   GNUNET_log_setup ("test_fs_download_persistence",
 424 #if VERBOSE
 425                     "DEBUG",
 426 #else
 427                     "WARNING",
 428 #endif
 429                     NULL);
 430   GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-download/");
 431   GNUNET_PROGRAM_run ((sizeof (argvx) / sizeof (char *)) - 1,
 432                       argvx, "test-fs-download-persistence",
 433                       "nohelp", options, &run, NULL);
 434   stop_arm (&p1);
 435   GNUNET_DISK_directory_remove ("/tmp/gnunet-test-fs-download/");
 436   return err;
 437 }
 438
 439 /* end of test_fs_download_persistence.c */