src/mesh/mesh_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 mesh/mesh_profiler.c
  22  *
  23  * @brief Profiler for mesh experiments.
  24  */
  25 #include <stdio.h>
  26 #include "platform.h"
  27 #include "mesh_test_lib.h"
  28 #include "gnunet_mesh_service.h"
  29 #include "gnunet_statistics_service.h"
  30 #include <gauger.h>
  31
  32
  33 /**
  34  * How namy messages to send
  35  */
  36 #define TOTAL_PACKETS 1000
  37
  38 /**
  39  * How namy peers to run
  40  */
  41 #define TOTAL_PEERS 1000
  42
  43 /**
  44  * How long until we give up on connecting the peers?
  45  */
  46 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 120)
  47
  48 /**
  49  * Time to wait for stuff that should be rather fast
  50  */
  51 #define SHORT_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
  52
  53
  54 /**
  55  * How many events have happened
  56  */
  57 static int ok;
  58
  59 /**
  60  * Number of events expected to conclude the test successfully.
  61  */
  62 int ok_goal;
  63
  64 /**
  65  * Size of each test packet
  66  */
  67 size_t size_payload = sizeof (struct GNUNET_MessageHeader) + sizeof (uint32_t);
  68
  69 /**
  70  * Operation to get peer ids.
  71  */
  72 struct GNUNET_TESTBED_Operation *t_op[TOTAL_PEERS];
  73
  74 /**
  75  * Peer ids.
  76  */
  77 struct GNUNET_PeerIdentity *p_id[TOTAL_PEERS];
  78
  79 /**
  80  * Mesh handle for the root peer
  81  */
  82 static struct GNUNET_MESH_Handle *mesh_h[TOTAL_PEERS];
  83
  84 /**
  85  * Channel handle for the root peer
  86  */
  87 static struct GNUNET_MESH_Channel *ch;
  88
  89 /**
  90  * Channel handle for the dest peer
  91  */
  92 static struct GNUNET_MESH_Channel *incoming_ch;
  93
  94 /**
  95  * Peer ids counter.
  96  */
  97 unsigned int p_ids;
  98
  99 /**
 100  * Is the setup initialized?
 101  */
 102 static int initialized;
 103
 104 /**
 105  * Number of payload packes sent
 106  */
 107 static int data_sent;
 108
 109 /**
 110  * Number of payload packets received
 111  */
 112 static int data_received;
 113
 114 /**
 115  * Number of payload packed explicitly (app level) acknowledged
 116  */
 117 static int data_ack;
 118
 119 /**
 120  * Total number of currently running peers.
 121  */
 122 static unsigned long long peers_running;
 123
 124 /**
 125  * Test context (to shut down).
 126  */
 127 struct GNUNET_MESH_TEST_Context *test_ctx;
 128
 129 /**
 130  * Task called to shutdown test.
 131  */
 132 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
 133
 134 /**
 135  * Task called to disconnect peers, before shutdown.
 136  */
 137 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 138
 139 /**
 140  * Task to perform tests
 141  */
 142 static GNUNET_SCHEDULER_TaskIdentifier test_task;
 143
 144 /**
 145  * Time we started the data transmission (after channel has been established
 146  * and initilized).
 147  */
 148 static struct GNUNET_TIME_Absolute start_time;
 149
 150 static struct GNUNET_TESTBED_Peer **testbed_peers;
 151
 152 /**
 153  *
 154  */
 155 static struct GNUNET_STATISTICS_Handle *stats;
 156 static struct GNUNET_STATISTICS_GetHandle *stats_get;
 157 static struct GNUNET_TESTBED_Operation *stats_op;
 158 static unsigned int ka_sent;
 159 static unsigned int ka_received;
 160
 161
 162 /**
 163  * Show the results of the test (banwidth acheived) and log them to GAUGER
 164  */
 165 static void
 166 show_end_data (void)
 167 {
 168   static struct GNUNET_TIME_Absolute end_time;
 169   static struct GNUNET_TIME_Relative total_time;
 170
 171   end_time = GNUNET_TIME_absolute_get();
 172   total_time = GNUNET_TIME_absolute_get_difference(start_time, end_time);
 173   FPRINTF (stderr, "\nResults of test \"%s\"\n", test_name);
 174   FPRINTF (stderr, "Test time %s\n",
 175            GNUNET_STRINGS_relative_time_to_string (total_time,
 176                                                    GNUNET_YES));
 177   FPRINTF (stderr, "Test bandwidth: %f kb/s\n",
 178            4 * TOTAL_PACKETS * 1.0 / (total_time.rel_value_us / 1000)); // 4bytes * ms
 179   FPRINTF (stderr, "Test throughput: %f packets/s\n\n",
 180            TOTAL_PACKETS * 1000.0 / (total_time.rel_value_us / 1000)); // packets * ms
 181   GAUGER ("MESH", test_name,
 182           TOTAL_PACKETS * 1000.0 / (total_time.rel_value_us / 1000),
 183           "packets/s");
 184 }
 185
 186
 187 /**
 188  * Shut down peergroup, clean up.
 189  *
 190  * @param cls Closure (unused).
 191  * @param tc Task Context.
 192  */
 193 static void
 194 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 195 {
 196   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ending test.\n");
 197   shutdown_handle = GNUNET_SCHEDULER_NO_TASK;
 198 }
 199
 200
 201 /**
 202  * Disconnect from mesh services af all peers, call shutdown.
 203  *
 204  * @param cls Closure (unused).
 205  * @param tc Task Context.
 206  */
 207 static void
 208 disconnect_mesh_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 209 {
 210   long line = (long) cls;
 211   unsigned int i;
 212
 213   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 214               "disconnecting mesh service of peers, called from line %ld\n",
 215               line);
 216   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 217   for (i = 0; i < 2; i++)
 218   {
 219     GNUNET_TESTBED_operation_done (t_op[i]);
 220   }
 221   if (NULL != ch)
 222   {
 223     GNUNET_MESH_channel_destroy (ch);
 224     ch = NULL;
 225   }
 226   if (NULL != incoming_ch)
 227   {
 228     GNUNET_MESH_channel_destroy (incoming_ch);
 229     incoming_ch = NULL;
 230   }
 231   GNUNET_MESH_TEST_cleanup (test_ctx);
 232   if (GNUNET_SCHEDULER_NO_TASK != shutdown_handle)
 233   {
 234     GNUNET_SCHEDULER_cancel (shutdown_handle);
 235   }
 236   if (NULL != stats_get)
 237     GNUNET_STATISTICS_get_cancel (stats_get);
 238   shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 239 }
 240
 241
 242 /**
 243  * Abort test: schedule disconnect and shutdown immediately
 244  *
 245  * @param line Line in the code the abort is requested from (__LINE__).
 246  */
 247 static void
 248 abort_test (long line)
 249 {
 250   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 251   {
 252     GNUNET_SCHEDULER_cancel (disconnect_task);
 253     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 254                                                 (void *) line);
 255   }
 256 }
 257
 258
 259 /**
 260  * Stats callback. Finish the stats testbed operation and when all stats have
 261  * been iterated, shutdown the test.
 262  *
 263  * @param cls closure
 264  * @param op the operation that has been finished
 265  * @param emsg error message in case the operation has failed; will be NULL if
 266  *          operation has executed successfully.
 267  */
 268 static void
 269 stats_cont (void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg)
 270 {
 271   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "... collecting statistics done.\n");
 272   GNUNET_TESTBED_operation_done (stats_op);
 273
 274   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 275     GNUNET_SCHEDULER_cancel (disconnect_task);
 276   disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 277                                               (void *) __LINE__);
 278
 279 }
 280
 281
 282 /**
 283  * Process statistic values.
 284  *
 285  * @param cls closure
 286  * @param peer the peer the statistic 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
 294 stats_iterator (void *cls, const struct GNUNET_TESTBED_Peer *peer,
 295                 const char *subsystem, const char *name,
 296                 uint64_t value, int is_persistent)
 297 {
 298   static const char *s_sent = "# keepalives sent";
 299   static const char *s_recv = "# keepalives received";
 300   uint32_t i;
 301
 302   i = GNUNET_TESTBED_get_index (peer);
 303   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "  %u - %s [%s]: %llu\n",
 304               i, subsystem, name, value);
 305   if (0 == strncmp (s_sent, name, strlen (s_sent)) && 0 == i)
 306     ka_sent = value;
 307
 308   if (0 == strncmp(s_recv, name, strlen (s_recv)) && 4 == i)
 309   {
 310     ka_received = value;
 311     GNUNET_log (GNUNET_ERROR_TYPE_INFO, " sent: %u, received: %u\n",
 312                 ka_sent, ka_received);
 313     if (ka_sent < 2 || ka_sent > ka_received + 1)
 314       ok--;
 315   }
 316
 317   return GNUNET_OK;
 318 }
 319
 320
 321 /**
 322  * Task check that keepalives were sent and received.
 323  *
 324  * @param cls Closure (NULL).
 325  * @param tc Task Context.
 326  */
 327 static void
 328 collect_stats (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 329 {
 330   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 331     return;
 332
 333   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 334   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Start collecting statistics...\n");
 335   GNUNET_MESH_channel_destroy (ch);
 336   stats_op = GNUNET_TESTBED_get_statistics (TOTAL_PEERS, testbed_peers,
 337                                             NULL, NULL,
 338                                             stats_iterator, stats_cont, NULL);
 339 }
 340
 341
 342 /**
 343  * Transmit ready callback.
 344  *
 345  * @param cls Closure (message type).
 346  * @param size Size of the tranmist buffer.
 347  * @param buf Pointer to the beginning of the buffer.
 348  *
 349  * @return Number of bytes written to buf.
 350  */
 351 static size_t
 352 tmt_rdy (void *cls, size_t size, void *buf);
 353
 354
 355 /**
 356  * Task to schedule a new data transmission.
 357  *
 358  * @param cls Closure (peer #).
 359  * @param tc Task Context.
 360  */
 361 static void
 362 data_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 363 {
 364   struct GNUNET_MESH_TransmitHandle *th;
 365   struct GNUNET_MESH_Channel *channel;
 366
 367   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 368     return;
 369
 370   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Data task\n");
 371   if (GNUNET_YES == test_backwards)
 372   {
 373     channel = incoming_ch;
 374   }
 375   else
 376   {
 377     channel = ch;
 378   }
 379   th = GNUNET_MESH_notify_transmit_ready (channel, GNUNET_NO,
 380                                           GNUNET_TIME_UNIT_FOREVER_REL,
 381                                           size_payload, &tmt_rdy, (void *) 1L);
 382   if (NULL == th)
 383   {
 384     unsigned long i = (unsigned long) cls;
 385
 386     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Retransmission\n");
 387     if (0 == i)
 388     {
 389       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "  in 1 ms\n");
 390       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MILLISECONDS,
 391                                     &data_task, (void *)1UL);
 392     }
 393     else
 394     {
 395       i++;
 396       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "in %u ms\n", i);
 397       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(
 398                                       GNUNET_TIME_UNIT_MILLISECONDS,
 399                                       i),
 400                                     &data_task, (void *)i);
 401     }
 402   }
 403 }
 404
 405
 406 /**
 407  * Transmit ready callback
 408  *
 409  * @param cls Closure (message type).
 410  * @param size Size of the buffer we have.
 411  * @param buf Buffer to copy data to.
 412  */
 413 size_t
 414 tmt_rdy (void *cls, size_t size, void *buf)
 415 {
 416   struct GNUNET_MessageHeader *msg = buf;
 417   uint32_t *data;
 418
 419   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 420               "tmt_rdy called, filling buffer\n");
 421   if (size < size_payload || NULL == buf)
 422   {
 423     GNUNET_break (ok >= ok_goal - 2);
 424     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 425                 "size %u, buf %p, data_sent %u, data_received %u\n",
 426                 size, buf, data_sent, data_received);
 427     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ok %u, ok goal %u\n", ok, ok_goal);
 428
 429     return 0;
 430   }
 431   msg->size = htons (size);
 432   msg->type = htons ((long) cls);
 433   data = (uint32_t *) &msg[1];
 434   *data = htonl (data_sent);
 435   if (GNUNET_NO == initialized)
 436   {
 437     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 438                 "sending initializer\n");
 439   }
 440   else if (SPEED == test)
 441   {
 442     data_sent++;
 443     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 444               " Sent packet %d\n", data_sent);
 445     if (data_sent < TOTAL_PACKETS)
 446     {
 447       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 448               " Scheduling packet %d\n", data_sent + 1);
 449       GNUNET_SCHEDULER_add_now (&data_task, NULL);
 450     }
 451   }
 452
 453   return size_payload;
 454 }
 455
 456
 457 /**
 458  * Function is called whenever a message is received.
 459  *
 460  * @param cls closure (set from GNUNET_MESH_connect)
 461  * @param channel connection to the other end
 462  * @param channel_ctx place to store local state associated with the channel
 463  * @param message the actual message
 464  * @return GNUNET_OK to keep the connection open,
 465  *         GNUNET_SYSERR to close it (signal serious error)
 466  */
 467 int
 468 data_callback (void *cls, struct GNUNET_MESH_Channel *channel,
 469                void **channel_ctx,
 470                const struct GNUNET_MessageHeader *message)
 471 {
 472   long client = (long) cls;
 473   long expected_target_client;
 474   uint32_t *data;
 475
 476   ok++;
 477
 478   GNUNET_MESH_receive_done (channel);
 479
 480   if ((ok % 20) == 0)
 481   {
 482     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 483     {
 484       GNUNET_SCHEDULER_cancel (disconnect_task);
 485       disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 486                                                       &disconnect_mesh_peers,
 487                                                       (void *) __LINE__);
 488     }
 489   }
 490
 491   switch (client)
 492   {
 493   case 0L:
 494     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Root client got a message!\n");
 495     break;
 496   case 4L:
 497     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 498                 "Leaf client %li got a message.\n",
 499                 client);
 500     break;
 501   default:
 502     GNUNET_assert (0);
 503     break;
 504   }
 505   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: (%d/%d)\n", ok, ok_goal);
 506   data = (uint32_t *) &message[1];
 507   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " payload: (%u)\n", ntohl (*data));
 508   if (SPEED == test && GNUNET_YES == test_backwards)
 509   {
 510     expected_target_client = 0L;
 511   }
 512   else
 513   {
 514     expected_target_client = 4L;
 515   }
 516
 517   if (GNUNET_NO == initialized)
 518   {
 519     initialized = GNUNET_YES;
 520     start_time = GNUNET_TIME_absolute_get ();
 521     if (SPEED == test)
 522     {
 523       GNUNET_assert (4L == client);
 524       GNUNET_SCHEDULER_add_now (&data_task, NULL);
 525       return GNUNET_OK;
 526     }
 527   }
 528
 529   if (client == expected_target_client) // Normally 4
 530   {
 531     data_received++;
 532     GNUNET_log (GNUNET_ERROR_TYPE_INFO, " received data %u\n", data_received);
 533     if (SPEED != test || (ok_goal - 2) == ok)
 534     {
 535       GNUNET_MESH_notify_transmit_ready (channel, GNUNET_NO,
 536                                          GNUNET_TIME_UNIT_FOREVER_REL,
 537                                          size_payload, &tmt_rdy, (void *) 1L);
 538       return GNUNET_OK;
 539     }
 540     else
 541     {
 542       if (data_received < TOTAL_PACKETS)
 543         return GNUNET_OK;
 544     }
 545   }
 546   else // Normally 0
 547   {
 548     if (test == SPEED_ACK || test == SPEED)
 549     {
 550       data_ack++;
 551       GNUNET_log (GNUNET_ERROR_TYPE_INFO, " received ack %u\n", data_ack);
 552       GNUNET_MESH_notify_transmit_ready (channel, GNUNET_NO,
 553                                          GNUNET_TIME_UNIT_FOREVER_REL,
 554                                          size_payload, &tmt_rdy, (void *) 1L);
 555       if (data_ack < TOTAL_PACKETS && SPEED != test)
 556         return GNUNET_OK;
 557       if (ok == 2 && SPEED == test)
 558         return GNUNET_OK;
 559       show_end_data();
 560     }
 561     if (test == P2P_SIGNAL)
 562     {
 563       GNUNET_MESH_channel_destroy (incoming_ch);
 564       incoming_ch = NULL;
 565     }
 566     else
 567     {
 568       GNUNET_MESH_channel_destroy (ch);
 569       ch = NULL;
 570     }
 571   }
 572
 573   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 574   {
 575     GNUNET_SCHEDULER_cancel (disconnect_task);
 576     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 577                                                     &disconnect_mesh_peers,
 578                                                     (void *) __LINE__);
 579   }
 580
 581   return GNUNET_OK;
 582 }
 583
 584
 585 /**
 586  * Handlers, for diverse services
 587  */
 588 static struct GNUNET_MESH_MessageHandler handlers[] = {
 589   {&data_callback, 1, sizeof (struct GNUNET_MessageHeader)},
 590   {NULL, 0, 0}
 591 };
 592
 593
 594 /**
 595  * Method called whenever another peer has added us to a channel
 596  * the other peer initiated.
 597  *
 598  * @param cls Closure.
 599  * @param channel New handle to the channel.
 600  * @param initiator Peer that started the channel.
 601  * @param port Port this channel is connected to.
 602  * @param options channel option flags
 603  * @return Initial channel context for the channel
 604  *         (can be NULL -- that's not an error).
 605  */
 606 static void *
 607 incoming_channel (void *cls, struct GNUNET_MESH_Channel *channel,
 608                  const struct GNUNET_PeerIdentity *initiator,
 609                  uint32_t port, enum GNUNET_MESH_ChannelOption options)
 610 {
 611   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 612               "Incoming channel from %s to peer %d\n",
 613               GNUNET_i2s (initiator), (long) cls);
 614   ok++;
 615   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 616   if ((long) cls == 4L)
 617     incoming_ch = channel;
 618   else
 619   {
 620     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 621                 "Incoming channel for unknown client %lu\n", (long) cls);
 622     GNUNET_break(0);
 623   }
 624   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 625   {
 626     GNUNET_SCHEDULER_cancel (disconnect_task);
 627     if (KEEPALIVE == test)
 628     {
 629       struct GNUNET_TIME_Relative delay;
 630       delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS , 5);
 631       disconnect_task =
 632         GNUNET_SCHEDULER_add_delayed (delay, &collect_stats, NULL);
 633     }
 634     else
 635       disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 636                                                       &disconnect_mesh_peers,
 637                                                       (void *) __LINE__);
 638   }
 639
 640   return NULL;
 641 }
 642
 643 /**
 644  * Function called whenever an inbound channel is destroyed.  Should clean up
 645  * any associated state.
 646  *
 647  * @param cls closure (set from GNUNET_MESH_connect)
 648  * @param channel connection to the other end (henceforth invalid)
 649  * @param channel_ctx place where local state associated
 650  *                   with the channel is stored
 651  */
 652 static void
 653 channel_cleaner (void *cls, const struct GNUNET_MESH_Channel *channel,
 654                  void *channel_ctx)
 655 {
 656   long i = (long) cls;
 657
 658   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 659               "Incoming channel disconnected at peer %d\n", i);
 660   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 661
 662   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 663   {
 664     GNUNET_SCHEDULER_cancel (disconnect_task);
 665     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 666                                                 (void *) __LINE__);
 667   }
 668 }
 669
 670
 671 /**
 672  * START THE TESTCASE ITSELF, AS WE ARE CONNECTED TO THE MESH SERVICES.
 673  *
 674  * Testcase continues when the root receives confirmation of connected peers,
 675  * on callback funtion ch.
 676  *
 677  * @param cls Closure (unsued).
 678  * @param tc Task Context.
 679  */
 680 static void
 681 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 682 {
 683   enum GNUNET_MESH_ChannelOption flags;
 684
 685   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 686     return;
 687
 688   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Start profiler\n");
 689
 690   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 691     GNUNET_SCHEDULER_cancel (disconnect_task);
 692   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 693                                                   &disconnect_mesh_peers,
 694                                                   (void *) __LINE__);
 695
 696   flags = GNUNET_MESH_OPTION_DEFAULT;
 697   ch = GNUNET_MESH_channel_create (h1, NULL, p_id[1], 1, flags);
 698
 699   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending data initializer...\n");
 700   data_ack = 0;
 701   data_received = 0;
 702   data_sent = 0;
 703   GNUNET_MESH_notify_transmit_ready (ch, GNUNET_NO,
 704                                      GNUNET_TIME_UNIT_FOREVER_REL,
 705                                      size_payload, &tmt_rdy, (void *) 1L);
 706 }
 707
 708
 709 /**
 710  * Callback to be called when the requested peer information is available
 711  *
 712  * @param cls the closure from GNUNET_TESTBED_peer_get_information()
 713  * @param op the operation this callback corresponds to
 714  * @param pinfo the result; will be NULL if the operation has failed
 715  * @param emsg error message if the operation has failed;
 716  *             NULL if the operation is successfull
 717  */
 718 static void
 719 pi_cb (void *cls,
 720        struct GNUNET_TESTBED_Operation *op,
 721        const struct GNUNET_TESTBED_PeerInformation *pinfo,
 722        const char *emsg)
 723 {
 724   long i = (long) cls;
 725
 726   if (NULL == pinfo || NULL != emsg)
 727   {
 728     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "pi_cb: %s\n", emsg);
 729     abort_test (__LINE__);
 730     return;
 731   }
 732   p_id[i] = pinfo->result.id;
 733   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " %u  id: %s\n",
 734               i, GNUNET_i2s (p_id[i]));
 735   p_ids++;
 736   if (p_ids < TOTAL_PEERS)
 737     return;
 738   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Got all IDs, starting profiler\n");
 739   test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 740                                             &do_test, NULL);
 741 }
 742
 743 /**
 744  * test main: start test when all peers are connected
 745  *
 746  * @param cls Closure.
 747  * @param ctx Argument to give to GNUNET_MESH_TEST_cleanup on test end.
 748  * @param num_peers Number of peers that are running.
 749  * @param peers Array of peers.
 750  * @param meshes Handle to each of the MESHs of the peers.
 751  */
 752 static void
 753 tmain (void *cls,
 754        struct GNUNET_MESH_TEST_Context *ctx,
 755        unsigned int num_peers,
 756        struct GNUNET_TESTBED_Peer **peers,
 757        struct GNUNET_MESH_Handle **meshes)
 758 {
 759   unsigned long i;
 760
 761   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test main\n");
 762   ok = 0;
 763   test_ctx = ctx;
 764   GNUNET_assert (TOTAL_PEERS == num_peers);
 765   peers_running = num_peers;
 766   testbed_peers = peers;
 767   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 768                                                   &disconnect_mesh_peers,
 769                                                   (void *) __LINE__);
 770   shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
 771                                                   &shutdown_task, NULL);
 772   for (i = 0; i < TOTAL_PEERS; i++)
 773   {
 774     t_op[i] = GNUNET_TESTBED_peer_get_information (peers[i],
 775                                                    GNUNET_TESTBED_PIT_IDENTITY,
 776                                                    &pi_cb, (void *) i);
 777   }
 778   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "requested peer ids\n");
 779   /* Continues from pi_cb -> do_test */
 780 }
 781
 782
 783 /**
 784  * Main: start profiler.
 785  */
 786 int
 787 main (int argc, char *argv[])
 788 {
 789   initialized = GNUNET_NO;
 790   static uint32_t ports[2];
 791   const char *config_file;
 792
 793   config_file = "test_mesh.conf";
 794
 795   p_ids = 0;
 796   ports[0] = 1;
 797   ports[1] = 0;
 798   GNUNET_MESH_TEST_run ("mesh_profiler", config_file, TOTAL_PEERS,
 799                         &tmain, NULL, /* tmain cls */
 800                         &incoming_channel, &channel_cleaner,
 801                         handlers, ports);
 802
 803   if (ok_goal > ok)
 804   {
 805     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 806                 "FAILED! (%d/%d)\n", ok, ok_goal);
 807     return 1;
 808   }
 809   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "success\n");
 810   return 0;
 811 }
 812
 813 /* end of test_mesh_small.c */
 814