src/nse/nse-profiler.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2011 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 nse/nse-profiler.c
  22  *
  23  * @brief Profiling driver for the network size estimation service.
  24  *        Generally, the profiler starts a given number of peers,
  25  *        then churns some off, waits a certain amount of time, then
  26  *        churns again, and repeats.
  27  */
  28 #include "platform.h"
  29 #include "gnunet_testing_lib.h"
  30 #include "gnunet_nse_service.h"
  31
  32 #define VERBOSE GNUNET_NO
  33
  34 struct NSEPeer
  35 {
  36   struct NSEPeer *prev;
  37
  38   struct NSEPeer *next;
  39
  40   struct GNUNET_TESTING_Daemon *daemon;
  41
  42   struct GNUNET_NSE_Handle *nse_handle;
  43 };
  44
  45 struct StatsContext
  46 {
  47   GNUNET_SCHEDULER_Task task;
  48   GNUNET_SCHEDULER_TaskIdentifier *task_id;
  49   void *task_cls;
  50   unsigned long long total_nse_bytes;
  51 };
  52
  53 struct NSEPeer *peer_head;
  54
  55 struct NSEPeer *peer_tail;
  56
  57 /**
  58  * How long until we give up on connecting the peers?
  59  */
  60 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1500)
  61
  62 static int ok;
  63
  64 /**
  65  * Be verbose
  66  */
  67 static int verbose;
  68
  69 /**
  70  * Total number of peers in the test.
  71  */
  72 static unsigned long long num_peers;
  73
  74 /**
  75  * Global configuration file
  76  */
  77 struct GNUNET_CONFIGURATION_Handle *testing_cfg;
  78
  79 /**
  80  * Total number of currently running peers.
  81  */
  82 static unsigned long long peers_running;
  83
  84 /**
  85  * Current round we are in.
  86  */
  87 static unsigned long long current_round;
  88
  89 /**
  90  * Peers desired in the next round.
  91  */
  92 static unsigned long long peers_next_round;
  93
  94 /**
  95  * Maximum number of connections to NSE services.
  96  */
  97 static unsigned long long connection_limit;
  98
  99 /**
 100  * Total number of connections in the whole network.
 101  */
 102 static unsigned int total_connections;
 103
 104 /**
 105  * The currently running peer group.
 106  */
 107 static struct GNUNET_TESTING_PeerGroup *pg;
 108
 109 /**
 110  * File to report results to.
 111  */
 112 static struct GNUNET_DISK_FileHandle *output_file;
 113
 114 /**
 115  * File to log connection info, statistics to.
 116  */
 117 static struct GNUNET_DISK_FileHandle *data_file;
 118
 119 /**
 120  * How many data points to capture before triggering next round?
 121  */
 122 static struct GNUNET_TIME_Relative wait_time;
 123
 124 /**
 125  * Task called to disconnect peers.
 126  */
 127 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 128
 129 /**
 130  * Task called to shutdown test.
 131  */
 132 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
 133
 134 /**
 135  * Task used to churn the network.
 136  */
 137 static GNUNET_SCHEDULER_TaskIdentifier churn_task;
 138
 139 static char *topology_file;
 140
 141 static char *data_filename;
 142
 143 static uint64_t clock_skew;
 144
 145 /**
 146  * Check whether peers successfully shut down.
 147  */
 148 void
 149 shutdown_callback (void *cls, const char *emsg)
 150 {
 151   if (emsg != NULL)
 152     {
 153 #if VERBOSE
 154       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutdown of peers failed!\n");
 155 #endif
 156       if (ok == 0)
 157         ok = 666;
 158     }
 159   else
 160     {
 161 #if VERBOSE
 162       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 163                   "All peers successfully shut down!\n");
 164 #endif
 165       ok = 0;
 166     }
 167 }
 168
 169 static void
 170 shutdown_task (void *cls,
 171                const struct GNUNET_SCHEDULER_TaskContext *tc)
 172 {
 173   struct NSEPeer *pos;
 174 #if VERBOSE
 175   fprintf(stderr, "Ending test.\n");
 176 #endif
 177
 178   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 179     {
 180       GNUNET_SCHEDULER_cancel(disconnect_task);
 181       disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 182     }
 183   while (NULL != (pos = peer_head))
 184     {
 185       if (pos->nse_handle != NULL)
 186         GNUNET_NSE_disconnect(pos->nse_handle);
 187       GNUNET_CONTAINER_DLL_remove(peer_head, peer_tail, pos);
 188       GNUNET_free(pos);
 189     }
 190
 191   if (data_file != NULL)
 192     GNUNET_DISK_file_close(data_file);
 193   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 194 }
 195
 196 /**
 197  * Callback to call when network size estimate is updated.
 198  *
 199  * @param cls closure
 200  * @param estimate the value of the current network size estimate
 201  * @param std_dev standard deviation (rounded down to nearest integer)
 202  *                of the size estimation values seen
 203  *
 204  */
 205 static void
 206 handle_estimate (void *cls, double estimate, double std_dev)
 207 {
 208   struct NSEPeer *peer = cls;
 209   char *output_buffer;
 210   int size;
 211   //fprintf(stderr, "Received network size estimate from peer %s. Size: %f std.dev. %f\n", GNUNET_i2s(&peer->daemon->id), estimate, std_dev);
 212   if (output_file != NULL)
 213     {
 214       size = GNUNET_asprintf(&output_buffer, "%s %u %f %f\n", GNUNET_i2s(&peer->daemon->id), peers_running, estimate, std_dev);
 215       if (size != GNUNET_DISK_file_write(output_file, output_buffer, size))
 216         GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s: Unable to write to file!\n", "nse-profiler");
 217     }
 218   else
 219     fprintf(stderr, "Received network size estimate from peer %s. Size: %f std.dev. %f\n", GNUNET_i2s(&peer->daemon->id), estimate, std_dev);
 220
 221 }
 222
 223 static void
 224 connect_nse_service (void *cls,
 225                      const struct GNUNET_SCHEDULER_TaskContext *tc)
 226 {
 227   struct NSEPeer *current_peer;
 228   unsigned int i;
 229 #if VERBOSE
 230   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TEST_NSE_MULTIPEER: connecting to nse service of peers\n");
 231 #endif
 232   GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "TEST_NSE_MULTIPEER: connecting to nse service of peers\n");
 233   for (i = 0; i < num_peers; i++)
 234     {
 235       if ((connection_limit > 0) && (i % (num_peers / connection_limit) != 0))
 236         continue;
 237       current_peer = GNUNET_malloc(sizeof(struct NSEPeer));
 238       current_peer->daemon = GNUNET_TESTING_daemon_get(pg, i);
 239       if (GNUNET_YES == GNUNET_TESTING_daemon_running(GNUNET_TESTING_daemon_get(pg, i)))
 240         {
 241           current_peer->nse_handle = GNUNET_NSE_connect (current_peer->daemon->cfg, &handle_estimate, current_peer);
 242           GNUNET_assert(current_peer->nse_handle != NULL);
 243         }
 244       GNUNET_CONTAINER_DLL_insert (peer_head, peer_tail, current_peer);
 245     }
 246 }
 247
 248 static void
 249 churn_peers (void *cls,
 250              const struct GNUNET_SCHEDULER_TaskContext *tc);
 251
 252 /**
 253  * Continuation called by the "get_all" and "get" functions.
 254  *
 255  * @param cls struct StatsContext
 256  * @param success GNUNET_OK if statistics were
 257  *        successfully obtained, GNUNET_SYSERR if not.
 258  */
 259 static void stats_finished_callback (void *cls, int success)
 260 {
 261   struct StatsContext *stats_context = (struct StatsContext *)cls;
 262   char *buf;
 263   int buf_len;
 264
 265   if ((GNUNET_OK == success) && (data_file != NULL)) /* Stats lookup successful, write out data */
 266     {
 267       buf = NULL;
 268       buf_len = GNUNET_asprintf(&buf, "TOTAL_NSE_BYTES: %u\n", stats_context->total_nse_bytes);
 269       if (buf_len > 0)
 270         {
 271           GNUNET_DISK_file_write(data_file, buf, buf_len);
 272         }
 273       GNUNET_free_non_null(buf);
 274     }
 275
 276   if (stats_context->task != NULL)
 277     (*stats_context->task_id) = GNUNET_SCHEDULER_add_now(stats_context->task, stats_context->task_cls);
 278
 279   GNUNET_free(stats_context);
 280 }
 281
 282 /**
 283  * Callback function to process statistic values.
 284  *
 285  * @param cls struct StatsContext
 286  * @param peer the peer the statistics belong to
 287  * @param subsystem name of subsystem that created the statistic
 288  * @param name the name of the datum
 289  * @param value the current value
 290  * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
 291  * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
 292  */
 293 static int statistics_iterator (void *cls,
 294                                 const struct GNUNET_PeerIdentity *peer,
 295                                 const char *subsystem,
 296                                 const char *name,
 297                                 uint64_t value,
 298                                 int is_persistent)
 299 {
 300   struct StatsContext *stats_context = (struct StatsContext *)cls;
 301   char *buf;
 302
 303   GNUNET_assert(0 < GNUNET_asprintf(&buf, "bytes of messages of type %d received", GNUNET_MESSAGE_TYPE_NSE_P2P_FLOOD));
 304   if ((0 == strstr(subsystem, "core")) && (0 == strstr(name, buf)))
 305     {
 306       stats_context->total_nse_bytes += value;
 307     }
 308   GNUNET_free(buf);
 309   return GNUNET_OK;
 310 }
 311
 312 /**
 313  * @param cls struct StatsContext
 314  * @param tc task context
 315  */
 316 static void
 317 get_statistics (void *cls,
 318                 const struct GNUNET_SCHEDULER_TaskContext *tc)
 319 {
 320   struct StatsContext *stats_context = (struct StatsContext *)cls;
 321   GNUNET_TESTING_get_statistics(pg, &stats_finished_callback, &statistics_iterator, stats_context);
 322 }
 323
 324 static void
 325 disconnect_nse_peers (void *cls,
 326                       const struct GNUNET_SCHEDULER_TaskContext *tc)
 327 {
 328   struct NSEPeer *pos;
 329   char *buf;
 330   struct StatsContext *stats_context;
 331   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 332   pos = peer_head;
 333
 334   GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "TEST_NSE_MULTIPEER: disconnecting nse service of peers\n");
 335   while (NULL != (pos = peer_head))
 336     {
 337       if (pos->nse_handle != NULL)
 338         {
 339           GNUNET_NSE_disconnect(pos->nse_handle);
 340           pos->nse_handle = NULL;
 341         }
 342       GNUNET_CONTAINER_DLL_remove(peer_head, peer_tail, pos);
 343       GNUNET_free(pos);
 344     }
 345
 346   GNUNET_asprintf(&buf, "round%llu", current_round);
 347   if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (testing_cfg, "nse-profiler", buf, &peers_next_round))
 348     {
 349       current_round++;
 350       GNUNET_assert(churn_task == GNUNET_SCHEDULER_NO_TASK);
 351       churn_task = GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
 352     }
 353   else /* No more rounds, let's shut it down! */
 354     {
 355       stats_context = GNUNET_malloc(sizeof(struct StatsContext));
 356       GNUNET_SCHEDULER_cancel(shutdown_handle);
 357       shutdown_handle = GNUNET_SCHEDULER_NO_TASK;
 358       stats_context->task = &shutdown_task;
 359       stats_context->task_cls = NULL;
 360       stats_context->task_id = &shutdown_handle;
 361       GNUNET_SCHEDULER_add_now(&get_statistics, stats_context);
 362       //shutdown_handle = GNUNET_SCHEDULER_add_now(&shutdown_task, NULL);
 363     }
 364   GNUNET_free(buf);
 365 }
 366
 367 /**
 368  * Prototype of a function that will be called when a
 369  * particular operation was completed the testing library.
 370  *
 371  * @param cls unused
 372  * @param emsg NULL on success
 373  */
 374 void topology_output_callback (void *cls, const char *emsg)
 375 {
 376   struct StatsContext *stats_context;
 377   stats_context = GNUNET_malloc(sizeof(struct StatsContext));
 378
 379   disconnect_task = GNUNET_SCHEDULER_add_delayed(wait_time, &disconnect_nse_peers, NULL);
 380   GNUNET_SCHEDULER_add_now(&connect_nse_service, NULL);
 381 }
 382
 383
 384 /**
 385  * Prototype of a function that will be called when a
 386  * particular operation was completed the testing library.
 387  *
 388  * @param cls closure
 389  * @param emsg NULL on success
 390  */
 391 static void
 392 churn_callback (void *cls, const char *emsg)
 393 {
 394   char *temp_output_file;
 395
 396   if (emsg == NULL) /* Everything is okay! */
 397     {
 398       peers_running = GNUNET_TESTING_daemons_running(pg);
 399       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 400                   "Round %lu, churn finished successfully.\n", current_round);
 401       GNUNET_assert(disconnect_task == GNUNET_SCHEDULER_NO_TASK);
 402       GNUNET_asprintf(&temp_output_file, "%s%lu.dot", topology_file, current_round);
 403       GNUNET_TESTING_peergroup_topology_to_file(pg,
 404                                                 temp_output_file,
 405                                                 &topology_output_callback,
 406                                                 NULL);
 407       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Writing topology to file %s\n", temp_output_file);
 408       GNUNET_free(temp_output_file);
 409     }
 410   else
 411     {
 412       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 413                   "Round %lu, churn FAILED!!\n", current_round);
 414       GNUNET_SCHEDULER_cancel(shutdown_handle);
 415       GNUNET_SCHEDULER_add_now(&shutdown_task, NULL);
 416     }
 417 }
 418
 419 static void
 420 churn_peers (void *cls,
 421                       const struct GNUNET_SCHEDULER_TaskContext *tc)
 422 {
 423   peers_running = GNUNET_TESTING_daemons_running(pg);
 424   churn_task = GNUNET_SCHEDULER_NO_TASK;
 425   if (peers_next_round == peers_running)
 426     {
 427       /* Nothing to do... */
 428       GNUNET_SCHEDULER_add_now(&connect_nse_service, NULL);
 429       GNUNET_assert(disconnect_task == GNUNET_SCHEDULER_NO_TASK);
 430       disconnect_task = GNUNET_SCHEDULER_add_delayed(wait_time, &disconnect_nse_peers, NULL);
 431       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %lu, doing nothing!\n", current_round);
 432     }
 433   else
 434     {
 435       if (peers_next_round > num_peers)
 436         {
 437           GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Asked to turn on more peers than have!!\n");
 438           GNUNET_SCHEDULER_cancel(shutdown_handle);
 439           GNUNET_SCHEDULER_add_now(&shutdown_task, NULL);
 440         }
 441       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 442                   "Round %lu, turning off %lu peers, turning on %lu peers!\n",
 443                   current_round,
 444                   (peers_running > peers_next_round) ? peers_running
 445                       - peers_next_round : 0,
 446                   (peers_next_round > peers_running) ? peers_next_round
 447                       - peers_running : 0);
 448       GNUNET_TESTING_daemons_churn (pg,
 449                                     (peers_running > peers_next_round) ? peers_running
 450                                         - peers_next_round
 451                                         : 0,
 452                                     (peers_next_round > peers_running) ? peers_next_round
 453                                         - peers_running
 454                                         : 0, wait_time, &churn_callback,
 455                                     NULL);
 456     }
 457 }
 458
 459
 460 static void
 461 my_cb (void *cls,
 462        const char *emsg)
 463 {
 464   char *buf;
 465   int buf_len;
 466   if (emsg != NULL)
 467     {
 468       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 469                   "Peergroup callback called with error, aborting test!\n");
 470       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Error from testing: `%s'\n");
 471       ok = 1;
 472       GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 473       return;
 474     }
 475 #if VERBOSE
 476   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 477               "Peer Group started successfully, connecting to NSE service for each peer!\n");
 478 #endif
 479   GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Have %u connections\n", total_connections);
 480   if (data_file != NULL)
 481     {
 482       buf = NULL;
 483       buf_len = GNUNET_asprintf(&buf, "CONNECTIONS_0: %u\n", total_connections);
 484       if (buf_len > 0)
 485         GNUNET_DISK_file_write(data_file, buf, buf_len);
 486       GNUNET_free_non_null(buf);
 487     }
 488   peers_running = GNUNET_TESTING_daemons_running(pg);
 489   GNUNET_SCHEDULER_add_now(&connect_nse_service, NULL);
 490   disconnect_task = GNUNET_SCHEDULER_add_delayed(wait_time, &disconnect_nse_peers, NULL);
 491 }
 492
 493 /**
 494  * Prototype of a function that will be called whenever
 495  * two daemons are connected by the testing library.
 496  *
 497  * @param cls closure
 498  * @param first peer id for first daemon
 499  * @param second peer id for the second daemon
 500  * @param distance distance between the connected peers
 501  * @param first_cfg config for the first daemon
 502  * @param second_cfg config for the second daemon
 503  * @param first_daemon handle for the first daemon
 504  * @param second_daemon handle for the second daemon
 505  * @param emsg error message (NULL on success)
 506  */
 507 void connect_cb (void *cls,
 508                  const struct GNUNET_PeerIdentity *first,
 509                  const struct GNUNET_PeerIdentity *second,
 510                  uint32_t distance,
 511                  const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 512                  const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 513                  struct GNUNET_TESTING_Daemon *first_daemon,
 514                  struct GNUNET_TESTING_Daemon *second_daemon,
 515                  const char *emsg)
 516 {
 517   char *second_id;
 518
 519   second_id = GNUNET_strdup(GNUNET_i2s(second));
 520   if (emsg == NULL)
 521     total_connections++;
 522 }
 523
 524
 525 static void
 526 run (void *cls,
 527      char *const *args,
 528      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 529 {
 530   char *temp_str;
 531   unsigned long long temp_wait;
 532   ok = 1;
 533   testing_cfg = GNUNET_CONFIGURATION_create();
 534   GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_load(testing_cfg, cfgfile));
 535 #if VERBOSE
 536   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting daemons.\n");
 537   GNUNET_CONFIGURATION_set_value_string (testing_cfg, "testing",
 538                                            "use_progressbars",
 539                                            "YES");
 540 #endif
 541   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (testing_cfg, "testing", "num_peers", &num_peers))
 542     {
 543       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Option TESTING:NUM_PEERS is required!\n");
 544       return;
 545     }
 546
 547   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (testing_cfg, "nse-profiler", "wait_time", &temp_wait))
 548     {
 549       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Option nse-profiler:wait_time is required!\n");
 550       return;
 551     }
 552
 553   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (testing_cfg, "nse-profiler", "connection_limit", &connection_limit))
 554     {
 555       connection_limit = 0;
 556     }
 557
 558   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (testing_cfg, "nse-profiler", "topology_output_file", &topology_file))
 559     {
 560       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Option nse-profiler:topology_output_file is required!\n");
 561       return;
 562     }
 563
 564   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (testing_cfg, "nse-profiler", "data_output_file", &data_filename))
 565     {
 566       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Option nse-profiler:data_output_file is required!\n");
 567       return;
 568     }
 569
 570   if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (testing_cfg, "nse-profiler", "skew_clock"))
 571     {
 572       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Setting our clock as skewed...\n");
 573       clock_skew = GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_TIME_UNIT_MINUTES.rel_value);
 574     }
 575
 576
 577   data_file = GNUNET_DISK_file_open (data_filename, GNUNET_DISK_OPEN_READWRITE
 578                                                   | GNUNET_DISK_OPEN_CREATE,
 579                                                   GNUNET_DISK_PERM_USER_READ |
 580                                                   GNUNET_DISK_PERM_USER_WRITE);
 581   if (data_file == NULL)
 582     GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to open %s for output!\n", data_filename);
 583   GNUNET_free(data_filename);
 584
 585   wait_time = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_wait);
 586
 587   if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_string(cfg, "nse-profiler", "output_file", &temp_str))
 588     {
 589       output_file = GNUNET_DISK_file_open (temp_str, GNUNET_DISK_OPEN_READWRITE
 590                                                       | GNUNET_DISK_OPEN_CREATE,
 591                                                       GNUNET_DISK_PERM_USER_READ |
 592                                                       GNUNET_DISK_PERM_USER_WRITE);
 593       if (output_file == NULL)
 594         GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to open %s for output!\n", temp_str);
 595     }
 596   GNUNET_free_non_null(temp_str);
 597
 598   pg = GNUNET_TESTING_peergroup_start(testing_cfg,
 599                                       num_peers,
 600                                       TIMEOUT,
 601                                       &connect_cb,
 602                                       &my_cb, NULL,
 603                                       NULL);
 604   GNUNET_assert (pg != NULL);
 605   shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_get_forever(), &shutdown_task, NULL);
 606 }
 607
 608
 609
 610 /**
 611  * nse-profiler command line options
 612  */
 613 static struct GNUNET_GETOPT_CommandLineOption options[] = {
 614   {'V', "verbose", NULL,
 615    gettext_noop ("be verbose (print progress information)"),
 616    0, &GNUNET_GETOPT_set_one, &verbose},
 617   GNUNET_GETOPT_OPTION_END
 618 };
 619
 620 int
 621 main (int argc, char *argv[])
 622 {
 623   int ret;
 624
 625   GNUNET_log_setup ("nse-profiler",
 626 #if VERBOSE
 627                     "DEBUG",
 628 #else
 629                     "WARNING",
 630 #endif
 631                     NULL);
 632   ret = 1;
 633   GNUNET_PROGRAM_run (argc,
 634                       argv, "nse-profiler", gettext_noop
 635                       ("Run a test of the NSE service."),
 636                       options, &run, &ok);
 637
 638   GNUNET_DISK_directory_remove ("/tmp/nse-profiler");
 639   return ret;
 640 }
 641
 642 /* end of nse-profiler.c */