src/mesh/test_mesh_small.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/test_mesh_small.c
  22  *
  23  * @brief Test for the mesh service: retransmission of traffic.
  24  */
  25 #include <stdio.h>
  26 #include "platform.h"
  27 #include "mesh_test_lib.h"
  28 #include "gnunet_mesh_service.h"
  29 #include <gauger.h>
  30
  31
  32 /**
  33  * How namy messages to send
  34  */
  35 #define TOTAL_PACKETS 1000
  36
  37 /**
  38  * How long until we give up on connecting the peers?
  39  */
  40 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 120)
  41
  42 /**
  43  * Time to wait for stuff that should be rather fast
  44  */
  45 #define SHORT_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20)
  46
  47 /**
  48  * DIFFERENT TESTS TO RUN
  49  */
  50 #define SETUP 0
  51 #define FORWARD 1
  52 #define SPEED 3
  53 #define SPEED_ACK 4
  54 #define SPEED_NOBUF 6
  55 #define P2P_SIGNAL 10
  56
  57 /**
  58  * Which test are we running?
  59  */
  60 static int test;
  61
  62 /**
  63  * String with test name
  64  */
  65 char *test_name;
  66
  67 /**
  68  * Flag to send traffic leaf->root in speed tests to test BCK_ACK logic.
  69  */
  70 static int test_backwards = GNUNET_NO;
  71
  72 /**
  73  * How many events have happened
  74  */
  75 static int ok;
  76
  77  /**
  78   * Each peer is supposed to generate the following callbacks:
  79   * 1 incoming tunnel (@dest)
  80   * 1 connected peer (@orig)
  81   * 1 received data packet (@dest)
  82   * 1 received data packet (@orig)
  83   * 1 received tunnel destroy (@dest)
  84   * _________________________________
  85   * 5 x ok expected per peer
  86   */
  87 int ok_goal;
  88
  89
  90 /**
  91  * Size of each test packet
  92  */
  93 size_t size_payload = sizeof (struct GNUNET_MessageHeader) + sizeof (uint32_t);
  94
  95 /**
  96  * Operation to get peer ids.
  97  */
  98 struct GNUNET_TESTBED_Operation *t_op[2];
  99
 100 /**
 101  * Peer ids.
 102  */
 103 struct GNUNET_PeerIdentity *p_id[2];
 104
 105 /**
 106  * Peer ids counter.
 107  */
 108 unsigned int p_ids;
 109
 110 /**
 111  * Is the setup initialized?
 112  */
 113 static int initialized;
 114
 115 /**
 116  * Peers that have responded
 117  */
 118 static int peers_responded;
 119
 120 /**
 121  * Number of payload packes sent
 122  */
 123 static int data_sent;
 124
 125 /**
 126  * Number of payload packets received
 127  */
 128 static int data_received;
 129
 130 /**
 131  * Number of payload packed explicitly (app level) acknowledged
 132  */
 133 static int data_ack;
 134
 135 /**
 136  * Total number of currently running peers.
 137  */
 138 static unsigned long long peers_running;
 139
 140 /**
 141  * Test context (to shut down).
 142  */
 143 struct GNUNET_MESH_TEST_Context *test_ctx;
 144
 145 /**
 146  * Task called to disconnect peers.
 147  */
 148 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 149
 150 /**
 151  * Task To perform tests
 152  */
 153 static GNUNET_SCHEDULER_TaskIdentifier test_task;
 154
 155 /**
 156  * Task called to shutdown test.
 157  */
 158 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
 159
 160 /**
 161  * Mesh handle for the root peer
 162  */
 163 static struct GNUNET_MESH_Handle *h1;
 164
 165 /**
 166  * Mesh handle for the first leaf peer
 167  */
 168 static struct GNUNET_MESH_Handle *h2;
 169
 170 /**
 171  * Tunnel handle for the root peer
 172  */
 173 static struct GNUNET_MESH_Tunnel *t;
 174
 175 /**
 176  * Tunnel handle for the first leaf peer
 177  */
 178 static struct GNUNET_MESH_Tunnel *incoming_t;
 179
 180 /**
 181  * Time we started the data transmission (after tunnel has been established
 182  * and initilized).
 183  */
 184 static struct GNUNET_TIME_Absolute start_time;
 185
 186
 187 /**
 188  * Show the results of the test (banwidth acheived) and log them to GAUGER
 189  */
 190 static void
 191 show_end_data (void)
 192 {
 193   static struct GNUNET_TIME_Absolute end_time;
 194   static struct GNUNET_TIME_Relative total_time;
 195
 196   end_time = GNUNET_TIME_absolute_get();
 197   total_time = GNUNET_TIME_absolute_get_difference(start_time, end_time);
 198   FPRINTF (stderr, "\nResults of test \"%s\"\n", test_name);
 199   FPRINTF (stderr, "Test time %llu ms\n",
 200             (unsigned long long) total_time.rel_value);
 201   FPRINTF (stderr, "Test bandwidth: %f kb/s\n",
 202             4 * TOTAL_PACKETS * 1.0 / total_time.rel_value); // 4bytes * ms
 203   FPRINTF (stderr, "Test throughput: %f packets/s\n\n",
 204             TOTAL_PACKETS * 1000.0 / total_time.rel_value); // packets * ms
 205   GAUGER ("MESH", test_name,
 206           TOTAL_PACKETS * 1000.0 / total_time.rel_value,
 207           "packets/s");
 208 }
 209
 210
 211 /**
 212  * Shut down peergroup, clean up.
 213  *
 214  * @param cls Closure (unused).
 215  * @param tc Task Context.
 216  */
 217 static void
 218 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 219 {
 220   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ending test.\n");
 221   shutdown_handle = GNUNET_SCHEDULER_NO_TASK;
 222 }
 223
 224
 225 /**
 226  * Disconnect from mesh services af all peers, call shutdown.
 227  *
 228  * @param cls Closure (unused).
 229  * @param tc Task Context.
 230  */
 231 static void
 232 disconnect_mesh_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 233 {
 234   long line = (long) cls;
 235   unsigned int i;
 236
 237   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 238               "disconnecting mesh service of peers, called from line %ld\n",
 239               line);
 240   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 241   for (i = 0; i < 2; i++)
 242   {
 243     GNUNET_TESTBED_operation_done (t_op[i]);
 244   }
 245   if (NULL != t)
 246   {
 247     GNUNET_MESH_tunnel_destroy (t);
 248     t = NULL;
 249   }
 250   if (NULL != incoming_t)
 251   {
 252     GNUNET_MESH_tunnel_destroy (incoming_t);
 253     incoming_t = NULL;
 254   }
 255   GNUNET_MESH_TEST_cleanup (test_ctx);
 256   if (GNUNET_SCHEDULER_NO_TASK != shutdown_handle)
 257   {
 258     GNUNET_SCHEDULER_cancel (shutdown_handle);
 259   }
 260   shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 261 }
 262
 263
 264 /**
 265  * Abort test: schedule disconnect and shutdown immediately
 266  *
 267  * @param line Line in the code the abort is requested from (__LINE__).
 268  */
 269 static void
 270 abort_test (long line)
 271 {
 272   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 273   {
 274     GNUNET_SCHEDULER_cancel (disconnect_task);
 275     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 276                                                 (void *) line);
 277   }
 278 }
 279
 280 /**
 281  * Transmit ready callback.
 282  *
 283  * @param cls Closure (message type).
 284  * @param size Size of the tranmist buffer.
 285  * @param buf Pointer to the beginning of the buffer.
 286  *
 287  * @return Number of bytes written to buf.
 288  */
 289 static size_t
 290 tmt_rdy (void *cls, size_t size, void *buf);
 291
 292
 293 /**
 294  * Task to schedule a new data transmission.
 295  *
 296  * @param cls Closure (peer #).
 297  * @param tc Task Context.
 298  */
 299 static void
 300 data_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 301 {
 302   struct GNUNET_MESH_TransmitHandle *th;
 303   struct GNUNET_MESH_Tunnel *tunnel;
 304
 305   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 306     return;
 307
 308   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Data task\n");
 309   if (GNUNET_YES == test_backwards)
 310   {
 311     tunnel = incoming_t;
 312   }
 313   else
 314   {
 315     tunnel = t;
 316   }
 317   th = GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 318                                           GNUNET_TIME_UNIT_FOREVER_REL,
 319                                           size_payload, &tmt_rdy, (void *) 1L);
 320   if (NULL == th)
 321   {
 322     unsigned long i = (unsigned long) cls;
 323
 324     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Retransmission\n");
 325     if (0 == i)
 326     {
 327       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "  in 1 ms\n");
 328       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MILLISECONDS,
 329                                     &data_task, (void *)1UL);
 330     }
 331     else
 332     {
 333       i++;
 334       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "in %u ms\n", i);
 335       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(
 336                                       GNUNET_TIME_UNIT_MILLISECONDS,
 337                                       i),
 338                                     &data_task, (void *)i);
 339     }
 340   }
 341 }
 342
 343
 344 /**
 345  * Transmit ready callback
 346  *
 347  * @param cls Closure (message type).
 348  * @param size Size of the buffer we have.
 349  * @param buf Buffer to copy data to.
 350  */
 351 size_t
 352 tmt_rdy (void *cls, size_t size, void *buf)
 353 {
 354   struct GNUNET_MessageHeader *msg = buf;
 355   uint32_t *data;
 356
 357   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 358               " tmt_rdy called\n");
 359   if (size < size_payload || NULL == buf)
 360   {
 361     GNUNET_break (0);
 362     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 363                 "size %u, buf %p, data_sent %u, data_received %u\n",
 364                 size,
 365                 buf,
 366                 data_sent,
 367                 data_received);
 368     return 0;
 369   }
 370   msg->size = htons (size);
 371   msg->type = htons ((long) cls);
 372   data = (uint32_t *) &msg[1];
 373   *data = htonl (data_sent);
 374   if (SPEED == test && GNUNET_YES == initialized)
 375   {
 376     data_sent++;
 377     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 378               " Sent packet %d\n", data_sent);
 379     if (data_sent < TOTAL_PACKETS)
 380     {
 381       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 382               " Scheduling packet %d\n", data_sent + 1);
 383       GNUNET_SCHEDULER_add_now(&data_task, NULL);
 384     }
 385   }
 386   return size_payload;
 387 }
 388
 389
 390 /**
 391  * Function is called whenever a message is received.
 392  *
 393  * @param cls closure (set from GNUNET_MESH_connect)
 394  * @param tunnel connection to the other end
 395  * @param tunnel_ctx place to store local state associated with the tunnel
 396  * @param message the actual message
 397  * @return GNUNET_OK to keep the connection open,
 398  *         GNUNET_SYSERR to close it (signal serious error)
 399  */
 400 int
 401 data_callback (void *cls, struct GNUNET_MESH_Tunnel *tunnel, void **tunnel_ctx,
 402                const struct GNUNET_MessageHeader *message)
 403 {
 404   long client = (long) cls;
 405   long expected_target_client;
 406   uint32_t *data;
 407
 408   ok++;
 409
 410   GNUNET_MESH_receive_done (tunnel);
 411
 412   if ((ok % 20) == 0)
 413   {
 414     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 415     {
 416       GNUNET_SCHEDULER_cancel (disconnect_task);
 417       disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 418                                                       &disconnect_mesh_peers,
 419                                                       (void *) __LINE__);
 420     }
 421   }
 422
 423   switch (client)
 424   {
 425   case 0L:
 426     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Root client got a message!\n");
 427     peers_responded++;
 428     break;
 429   case 4L:
 430     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 431                 "Leaf client %li got a message.\n",
 432                 client);
 433     client = 4L;
 434     break;
 435   default:
 436     GNUNET_assert (0);
 437     break;
 438   }
 439   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: (%d/%d)\n", ok, ok_goal);
 440   data = (uint32_t *) &message[1];
 441   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " payload: (%u)\n", ntohl (*data));
 442   if (SPEED == test && GNUNET_YES == test_backwards)
 443   {
 444     expected_target_client = 0L;
 445   }
 446   else
 447   {
 448     expected_target_client = 4L;
 449   }
 450
 451   if (GNUNET_NO == initialized)
 452   {
 453     initialized = GNUNET_YES;
 454     start_time = GNUNET_TIME_absolute_get ();
 455     if (SPEED == test)
 456     {
 457       GNUNET_assert (4L == client);
 458       GNUNET_SCHEDULER_add_now (&data_task, NULL);
 459       return GNUNET_OK;
 460     }
 461   }
 462
 463   if (client == expected_target_client) // Normally 3 or 4
 464   {
 465     data_received++;
 466     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 467                 " received data %u\n", data_received);
 468     if (SPEED != test || (ok_goal - 2) == ok)
 469     {
 470       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 471                                          GNUNET_TIME_UNIT_FOREVER_REL,
 472                                          size_payload, &tmt_rdy, (void *) 1L);
 473       return GNUNET_OK;
 474     }
 475     else
 476     {
 477       if (data_received < TOTAL_PACKETS)
 478         return GNUNET_OK;
 479     }
 480   }
 481   else // Normally 0
 482   {
 483     if (test == SPEED_ACK || test == SPEED)
 484     {
 485       data_ack++;
 486       GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 487               " received ack %u\n", data_ack);
 488       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 489                                          GNUNET_TIME_UNIT_FOREVER_REL,
 490                                          size_payload, &tmt_rdy, (void *) 1L);
 491       if (data_ack < TOTAL_PACKETS && SPEED != test)
 492         return GNUNET_OK;
 493       if (ok == 2 && SPEED == test)
 494         return GNUNET_OK;
 495       show_end_data();
 496     }
 497     if (test == P2P_SIGNAL)
 498     {
 499       GNUNET_MESH_tunnel_destroy (incoming_t);
 500       incoming_t = NULL;
 501     }
 502     else
 503     {
 504       GNUNET_MESH_tunnel_destroy (t);
 505       t = NULL;
 506     }
 507   }
 508
 509   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 510   {
 511     GNUNET_SCHEDULER_cancel (disconnect_task);
 512     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 513                                                     &disconnect_mesh_peers,
 514                                                     (void *) __LINE__);
 515   }
 516
 517   return GNUNET_OK;
 518 }
 519
 520
 521 /**
 522  * Handlers, for diverse services
 523  */
 524 static struct GNUNET_MESH_MessageHandler handlers[] = {
 525   {&data_callback, 1, sizeof (struct GNUNET_MessageHeader)},
 526   {NULL, 0, 0}
 527 };
 528
 529
 530 /**
 531  * Method called whenever another peer has added us to a tunnel
 532  * the other peer initiated.
 533  *
 534  * @param cls Closure.
 535  * @param tunnel New handle to the tunnel.
 536  * @param initiator Peer that started the tunnel.
 537  * @param port Port this tunnels is connected to.
 538  * @return Initial tunnel context for the tunnel
 539  *         (can be NULL -- that's not an error).
 540  */
 541 static void *
 542 incoming_tunnel (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
 543                  const struct GNUNET_PeerIdentity *initiator,
 544                  uint32_t port)
 545 {
 546   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 547               "Incoming tunnel from %s to peer %d\n",
 548               GNUNET_i2s (initiator), (long) cls);
 549   ok++;
 550   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 551   if ((long) cls == 4L)
 552     incoming_t = tunnel;
 553   else
 554   {
 555     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 556                 "Incoming tunnel for unknown client %lu\n", (long) cls);
 557     GNUNET_break(0);
 558   }
 559   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 560   {
 561     GNUNET_SCHEDULER_cancel (disconnect_task);
 562     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 563                                                     &disconnect_mesh_peers,
 564                                                     (void *) __LINE__);
 565   }
 566
 567   return NULL;
 568 }
 569
 570 /**
 571  * Function called whenever an inbound tunnel is destroyed.  Should clean up
 572  * any associated state.
 573  *
 574  * @param cls closure (set from GNUNET_MESH_connect)
 575  * @param tunnel connection to the other end (henceforth invalid)
 576  * @param tunnel_ctx place where local state associated
 577  *                   with the tunnel is stored
 578  */
 579 static void
 580 tunnel_cleaner (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
 581                 void *tunnel_ctx)
 582 {
 583   long i = (long) cls;
 584
 585   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 586               "Incoming tunnel disconnected at peer %d\n",
 587               i);
 588   if (4L == i)
 589   {
 590     ok++;
 591     incoming_t = NULL;
 592   }
 593   else if (0L == i && P2P_SIGNAL == test)
 594   {
 595     ok ++;
 596   }
 597   else
 598     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 599                 "Unknown peer! %d\n", i);
 600   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 601
 602   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 603   {
 604     GNUNET_SCHEDULER_cancel (disconnect_task);
 605     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 606                                                 (void *) __LINE__);
 607   }
 608
 609   return;
 610 }
 611
 612
 613 /**
 614  * START THE TESTCASE ITSELF, AS WE ARE CONNECTED TO THE MESH SERVICES.
 615  *
 616  * Testcase continues when the root receives confirmation of connected peers,
 617  * on callback funtion ch.
 618  *
 619  * @param cls Closure (unsued).
 620  * @param tc Task Context.
 621  */
 622 static void
 623 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 624 {
 625   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test_task\n");
 626   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "add peer 2\n");
 627
 628   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 629               "schedule timeout in TIMEOUT\n");
 630   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 631   {
 632     GNUNET_SCHEDULER_cancel (disconnect_task);
 633   }
 634   t = GNUNET_MESH_tunnel_create (h1, NULL, p_id[1], 1, GNUNET_YES, GNUNET_NO);
 635   if (SPEED_NOBUF == test)
 636   {
 637     GNUNET_MESH_tunnel_buffer(t, GNUNET_NO);
 638     test = SPEED;
 639   }
 640
 641   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 642                                                   &disconnect_mesh_peers,
 643                                                   (void *) __LINE__);
 644   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 645               "Sending data initializer...\n");
 646   peers_responded = 0;
 647   data_ack = 0;
 648   data_received = 0;
 649   data_sent = 0;
 650   GNUNET_MESH_notify_transmit_ready (t, GNUNET_NO,
 651                                      GNUNET_TIME_UNIT_FOREVER_REL,
 652                                      size_payload, &tmt_rdy, (void *) 1L);
 653 }
 654
 655 /**
 656  * Callback to be called when the requested peer information is available
 657  *
 658  * @param cls the closure from GNUNET_TESTBED_peer_get_information()
 659  * @param op the operation this callback corresponds to
 660  * @param pinfo the result; will be NULL if the operation has failed
 661  * @param emsg error message if the operation has failed;
 662  *             NULL if the operation is successfull
 663  */
 664 static void
 665 pi_cb (void *cls,
 666        struct GNUNET_TESTBED_Operation *op,
 667        const struct GNUNET_TESTBED_PeerInformation *pinfo,
 668        const char *emsg)
 669 {
 670   long i = (long) cls;
 671
 672   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "id callback for %ld\n", i);
 673
 674   if (NULL == pinfo || NULL != emsg)
 675   {
 676     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "pi_cb: %s\n", emsg);
 677     abort_test (__LINE__);
 678     return;
 679   }
 680   p_id[i] = pinfo->result.id;
 681   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "  id: %s\n", GNUNET_i2s (p_id[i]));
 682   p_ids++;
 683   if (p_ids < 2)
 684     return;
 685   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got all IDs, starting test\n");
 686   test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 687                                             &do_test, NULL);
 688 }
 689
 690 /**
 691  * test main: start test when all peers are connected
 692  *
 693  * @param cls Closure.
 694  * @param ctx Argument to give to GNUNET_MESH_TEST_cleanup on test end.
 695  * @param num_peers Number of peers that are running.
 696  * @param peers Array of peers.
 697  * @param meshes Handle to each of the MESHs of the peers.
 698  */
 699 static void
 700 tmain (void *cls,
 701        struct GNUNET_MESH_TEST_Context *ctx,
 702        unsigned int num_peers,
 703        struct GNUNET_TESTBED_Peer **peers,
 704        struct GNUNET_MESH_Handle **meshes)
 705 {
 706   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test main\n");
 707   ok = 0;
 708   test_ctx = ctx;
 709   peers_running = num_peers;
 710   h1 = meshes[0];
 711   h2 = meshes[num_peers - 1];
 712   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 713                                                   &disconnect_mesh_peers,
 714                                                   (void *) __LINE__);
 715   shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
 716                                                   &shutdown_task, NULL);
 717   t_op[0] = GNUNET_TESTBED_peer_get_information (peers[0],
 718                                                  GNUNET_TESTBED_PIT_IDENTITY,
 719                                                  &pi_cb, (void *) 0L);
 720   t_op[1] = GNUNET_TESTBED_peer_get_information (peers[num_peers - 1],
 721                                                  GNUNET_TESTBED_PIT_IDENTITY,
 722                                                  &pi_cb, (void *) 1L);
 723   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "requested peer ids\n");
 724 }
 725
 726
 727 /**
 728  * Main: start test
 729  */
 730 int
 731 main (int argc, char *argv[])
 732 {
 733   initialized = GNUNET_NO;
 734   uint32_t ports[2];
 735
 736   GNUNET_log_setup ("test", "DEBUG", NULL);
 737
 738   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Start\n");
 739   if (strstr (argv[0], "_small_forward") != NULL)
 740   {
 741     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "FORWARD\n");
 742     test = FORWARD;
 743     test_name = "unicast2";
 744     ok_goal = 4;
 745   }
 746   else if (strstr (argv[0], "_small_signal") != NULL)
 747   {
 748     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SIGNAL\n");
 749     test = P2P_SIGNAL;
 750     test_name = "signal2";
 751     ok_goal = 4;
 752   }
 753   else if (strstr (argv[0], "_small_speed_ack") != NULL)
 754   {
 755    /* Each peer is supposed to generate the following callbacks:
 756     * 1 incoming tunnel (@dest)
 757     * TOTAL_PACKETS received data packet (@dest)
 758     * TOTAL_PACKETS received data packet (@orig)
 759     * 1 received tunnel destroy (@dest)
 760     * _________________________________
 761     * 5 x ok expected per peer
 762     */
 763     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED_ACK\n");
 764     test = SPEED_ACK;
 765     test_name = "speed2 ack";
 766     ok_goal = TOTAL_PACKETS * 2 + 2;
 767   }
 768   else if (strstr (argv[0], "_small_speed") != NULL)
 769   {
 770    /* Each peer is supposed to generate the following callbacks:
 771     * 1 incoming tunnel (@dest)
 772     * 1 initial packet (@dest)
 773     * TOTAL_PACKETS received data packet (@dest)
 774     * 1 received data packet (@orig)
 775     * 1 received tunnel destroy (@dest)
 776     * _________________________________
 777     */
 778     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED\n");
 779     ok_goal = TOTAL_PACKETS + 4;
 780     if (strstr (argv[0], "_nobuf") != NULL)
 781     {
 782       test = SPEED_NOBUF;
 783       test_name = "speed2 nobuf";
 784     }
 785     else
 786     {
 787       test = SPEED;
 788       test_name = "speed2";
 789     }
 790   }
 791   else
 792   {
 793     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "UNKNOWN\n");
 794     test = SETUP;
 795     ok_goal = 0;
 796   }
 797
 798   if (strstr (argv[0], "backwards") != NULL)
 799   {
 800     char *aux;
 801
 802     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "BACKWARDS (LEAF TO ROOT)\n");
 803     test_backwards = GNUNET_YES;
 804     aux = GNUNET_malloc (32);
 805     sprintf (aux, "backwards %s", test_name);
 806     test_name = aux;
 807   }
 808
 809   p_ids = 0;
 810   ports[0] = 1;
 811   ports[1] = 0;
 812   GNUNET_MESH_TEST_run ("test_mesh_small",
 813                         "test_mesh.conf",
 814                         5,
 815                         &tmain,
 816                         NULL, /* tmain cls */
 817                         &incoming_tunnel,
 818                         &tunnel_cleaner,
 819                         handlers,
 820                         ports);
 821
 822   if (ok_goal > ok)
 823   {
 824     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 825                 "FAILED! (%d/%d)\n", ok, ok_goal);
 826     return 1;
 827   }
 828   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "success\n");
 829   return 0;
 830 }
 831
 832 /* end of test_mesh_small.c */
 833