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path: root/src/ats-test/test_transport_ats_multiple_peers.c
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/*
     This file is part of GNUnet.
     (C) 2009 Christian Grothoff (and other contributing authors)

     GNUnet is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published
     by the Free Software Foundation; either version 3, or (at your
     option) any later version.

     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
*/
/**
 * @file testing/test_transport_ats_multiple_peers.c
 * @brief testcase for ats functionality by starting multiple peers
 */

#include "platform.h"
#include "gnunet_util_lib.h"

#include "gnunet_testing_lib.h"
#include "gnunet_transport_service.h"
#include "gauger.h"
#include "gnunet-service-transport_ats.h"

#define VERBOSE GNUNET_EXTRA_LOGGING

#define NUM_PEERS 11
#define MEASUREMENTS 5

#define DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
#define SEND_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)

static int ok;

static int peers_left;

static int failed_peers;

static int measurement_started = GNUNET_NO;
static char *config_file;

static struct GNUNET_TESTING_PeerGroup *pg;

static GNUNET_SCHEDULER_TaskIdentifier shutdown_task;
static GNUNET_SCHEDULER_TaskIdentifier stats_task;
static GNUNET_SCHEDULER_TaskIdentifier send_task;
struct GNUNET_TESTING_Daemon *master_deamon;
struct GNUNET_TESTING_Daemon *ping_deamon;

struct GNUNET_STATISTICS_Handle *stats;

struct TEST_result
{
  uint64_t timestamp;
  uint64_t duration;
  uint64_t mechs;
  uint64_t peers;
  uint64_t solution;
  uint64_t state;
};

GNUNET_NETWORK_STRUCT_BEGIN

struct TestMessage
{
  struct GNUNET_MessageHeader header;
  uint32_t num;
};
GNUNET_NETWORK_STRUCT_END


static int count;
static int c_new;
static int c_unmodified;
static int c_modified;
static int connected;
static int peers;

static int force_q_updates;
static int force_rebuild;
static int send_msg;
static int machine_parsable;

static struct TEST_result results_new[MEASUREMENTS + 1];
static struct TEST_result results_modified[MEASUREMENTS + 1];
static struct TEST_result results_unmodified[MEASUREMENTS + 1];
static struct TEST_result current;

static struct GNUNET_STATISTICS_GetHandle *s_solution;
static struct GNUNET_STATISTICS_GetHandle *s_time;
static struct GNUNET_STATISTICS_GetHandle *s_peers;
static struct GNUNET_STATISTICS_GetHandle *s_mechs;
static struct GNUNET_STATISTICS_GetHandle *s_duration;
static struct GNUNET_STATISTICS_GetHandle *s_invalid;
static struct GNUNET_STATISTICS_GetHandle *s_state;

struct GNUNET_TRANSPORT_TransmitHandle *t;
struct GNUNET_TRANSPORT_Handle *th;

/**
 * Check whether peers successfully shut down.
 */
static void
shutdown_callback (void *cls, const char *emsg)
{
  if (emsg != NULL)
  {
#if VERBOSE
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutdown of peers failed!\n");
#endif
    if (ok == 0)
      ok = 666;
  }
  else
  {
#if VERBOSE
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "All peers successfully shut down!\n");
    if (stats != NULL)
      GNUNET_STATISTICS_destroy (stats, GNUNET_NO);
    stats = NULL;
#endif
  }
}

static void
shutdown_peers ()
{
  if (shutdown_task != GNUNET_SCHEDULER_NO_TASK)
  {
    GNUNET_SCHEDULER_cancel (shutdown_task);
    shutdown_task = GNUNET_SCHEDULER_NO_TASK;
  }
  if (stats_task != GNUNET_SCHEDULER_NO_TASK)
  {
    GNUNET_SCHEDULER_cancel (stats_task);
    stats_task = GNUNET_SCHEDULER_NO_TASK;
  }
  if (send_task != GNUNET_SCHEDULER_NO_TASK)
  {
    GNUNET_SCHEDULER_cancel (send_task);
    send_task = GNUNET_SCHEDULER_NO_TASK;
  }

  if (t != NULL)
  {
    GNUNET_TRANSPORT_notify_transmit_ready_cancel (t);
    t = NULL;
  }
  GNUNET_TRANSPORT_disconnect (th);
  if (s_time != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_time);
    s_time = NULL;
  }
  if (s_peers != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_peers);
    s_peers = NULL;
  }
  if (s_mechs != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_mechs);
    s_mechs = NULL;
  }
  if (s_solution != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_solution);
    s_solution = NULL;
  }
  if (s_duration != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_duration);
    s_duration = NULL;
  }
  if (s_invalid != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_invalid);
    s_invalid = NULL;
  }
  if (s_state != NULL)
  {
    GNUNET_STATISTICS_get_cancel (s_state);
    s_state = NULL;
  }
  GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
}

static void
evaluate_measurements ()
{
  int c;

  //int mechs = 0;
  double average[3];
  double stddev[3];

  //char * output;
  c = 1;

  //GNUNET_asprintf(&output, "p,%i,m,%i,",peers, MEASUREMENTS, results_modified[0].mechs,

  average[0] = 0.0;
  for (c = 0; c < c_new; c++)
  {
    average[0] += (double) results_new[c].duration;
  }
  average[0] /= c_new;

  stddev[0] = 0.0;
  for (c = 0; c < c_new; c++)
  {
    stddev[0] +=
        (results_new[c].duration - average[0]) * (results_new[c].duration -
                                                  average[0]);
  }
  stddev[0] /= c_new;
  stddev[0] = sqrt (stddev[0]);
  if (!machine_parsable)
    FPRINTF (stderr, "new, %i measurements, average: %f stddev: %f\n", c_new,
             average[0], stddev[0]);

  average[1] = 0.0;
  for (c = 0; c < c_modified; c++)
  {
    average[1] += (double) results_modified[c].duration;
  }
  average[1] /= c_modified;

  stddev[1] = 0.0;
  for (c = 0; c < c_modified; c++)
  {
    stddev[1] +=
        (results_modified[c].duration -
         average[1]) * (results_modified[c].duration - average[1]);
  }
  stddev[1] /= c_modified;
  stddev[1] = sqrt (stddev[1]);
  if (!machine_parsable)
    FPRINTF (stderr, "modified, %i measurements, average: %f stddev: %f\n",
             c_modified, average[1], stddev[1]);

  average[2] = 0.0;
  for (c = 0; c < c_unmodified; c++)
  {
    average[2] += (double) results_unmodified[c].duration;
  }
  average[2] /= c_unmodified;
  stddev[2] = 0.0;
  for (c = 0; c < c_unmodified; c++)
  {
    stddev[2] +=
        (results_unmodified[c].duration -
         average[2]) * (results_unmodified[c].duration - average[2]);
  }
  stddev[2] /= c_unmodified;
  stddev[2] = sqrt (stddev[2]);

  if (!machine_parsable)
    FPRINTF (stderr, "unmodified, %i measurements, average: %f stddev: %f\n",
             c_unmodified, average[2], stddev[2]);

  if (machine_parsable)
    FPRINTF (stderr,
             "peers,%i,mechs,%llu," "new,%i,%f,%f," "mod,%i,%f,%f,"
             "unmod,%i,%f,%f\n", peers - 1,
             (unsigned long long) results_unmodified[0].mechs, c_new,
             average[0], stddev[0], c_modified, average[1], stddev[1],
             c_unmodified, average[2], stddev[2]);
  shutdown_peers ();
}


static int
stats_cb (void *cls, const char *subsystem, const char *name, uint64_t value,
          int is_persistent)
{
  static int printed = GNUNET_NO;

#if VERBOSE_ATS
  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s = %llu\n", name, value);
#endif
  if (0 == strcmp (name, "ATS invalid solutions"))
  {
    if (stats_task != GNUNET_SCHEDULER_NO_TASK)
    {
      GNUNET_SCHEDULER_cancel (stats_task);
      stats_task = GNUNET_SCHEDULER_NO_TASK;
    }
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "MLP produced invalid %llu result(s)!\n", value);
    shutdown_peers ();
    return GNUNET_SYSERR;
  }

  if (0 == strcmp (name, "ATS solution"))
  {
    s_solution = NULL;
  }

  if (0 == strcmp (name, "ATS peers"))
  {
    s_peers = NULL;
  }

  if (0 == strcmp (name, "ATS mechanisms"))
  {
    s_mechs = NULL;
  }

  if (0 == strcmp (name, "ATS duration"))
  {
    s_duration = NULL;
  }
  if (0 == strcmp (name, "ATS timestamp"))
  {
    s_time = NULL;
  }
  if (0 == strcmp (name, "ATS state"))
  {
    s_state = NULL;
  }

  if ((measurement_started == GNUNET_NO) && (0 == strcmp (name, "ATS peers")) &&
      (value == peers - 1))
  {
    measurement_started = GNUNET_YES;
    count = 1;
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "All %llu peers connected\n", value);
#if !VERBOSE
    if (!machine_parsable)
      FPRINTF (stderr, "%i", count);
#endif
  }

  if (measurement_started == GNUNET_YES)
  {
    // GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s == %llu\n", name ,value);
    if (0 == strcmp (name, "ATS timestamp"))
    {
      if (current.timestamp == 0)
      {
        printed = GNUNET_NO;
        current.timestamp = value;
      }
      if (current.timestamp == value)
      {
        printed = GNUNET_YES;
      }
      if (current.timestamp != value)
      {
        if (current.state == ATS_NEW)
        {
          if (c_new < MEASUREMENTS)
          {
            results_new[c_new] = current;
            c_new++;
          }
          else
          {
            force_rebuild = GNUNET_NO;
            force_q_updates = GNUNET_NO;
            send_msg = GNUNET_NO;
          }
        }
        if (current.state == ATS_UNMODIFIED)
        {
          if (c_unmodified < MEASUREMENTS)
          {
            results_unmodified[c_unmodified] = current;
            c_unmodified++;
          }

        }
        if (current.state == ATS_QUALITY_UPDATED)
        {
          if (c_modified < MEASUREMENTS)
          {
            results_modified[c_modified] = current;
            c_modified++;
          }
          else
          {
            force_q_updates = GNUNET_NO;
            force_rebuild = GNUNET_YES;
          }
        }
        count++;
#if VERBOSE
        FPRINTF (stderr, "(new: %i / modified: %i / unmodified: %i) of %i \n",
                 c_new, c_modified, c_unmodified, MEASUREMENTS);
#endif
        if ((c_modified >= MEASUREMENTS) && (c_new >= MEASUREMENTS) &&
            (c_unmodified >= MEASUREMENTS))
        {
#if !VERBOSE
          if (!machine_parsable)
            FPRINTF (stdout, "\n");
#endif
          if (stats_task != GNUNET_SCHEDULER_NO_TASK)
          {
            GNUNET_SCHEDULER_cancel (stats_task);
            stats_task = GNUNET_SCHEDULER_NO_TASK;
          }
          evaluate_measurements ();
          return GNUNET_SYSERR;
        }

        printed = GNUNET_NO;
        current.timestamp = value;
#if !VERBOSE
        if (!machine_parsable)
          FPRINTF (stderr, "..%i", count);
#endif
        return GNUNET_OK;
      }
    }

    if (0 == strcmp (name, "ATS solution"))
    {
      current.solution = value;
      if (printed == GNUNET_NO)
        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "[%i] %s: %llu \n", count, name,
                    value);
    }

    if (0 == strcmp (name, "ATS peers"))
    {
      current.peers = value;
      if (printed == GNUNET_NO)
        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "[%i] %s: %llu \n", count, name,
                    value);
    }

    if (0 == strcmp (name, "ATS mechanisms"))
    {
      current.mechs = value;
      if (printed == GNUNET_NO)
        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "[%i] %s: %llu \n", count, name,
                    value);
    }

    if (0 == strcmp (name, "ATS duration"))
    {
      current.duration = value;
      if (printed == GNUNET_NO)
        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "[%i] %s: %llu \n", count, name,
                    value);
    }
    if (0 == strcmp (name, "ATS state"))
    {
      current.state = value;
      const char *cont;

      switch (value)
      {
      case ATS_NEW:
        cont = "NEW";
        break;
      case ATS_COST_UPDATED:
        cont = "C_UPDATED";
        break;
      case ATS_QUALITY_UPDATED:
        cont = "Q_UPDATED";
        break;
      case ATS_QUALITY_COST_UPDATED:
        cont = "QC_UPDATED";
        break;
      case ATS_UNMODIFIED:
        cont = "UNMODIFIED";
        break;
      default:
        GNUNET_break (0);
        cont = "<undefined>";
        break;
      }
      if (printed == GNUNET_NO)
        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "[%i] ATS state: %s\n", count,
                    cont);
    }
  }
  return GNUNET_OK;
}


static void
stats_get_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  stats_task = GNUNET_SCHEDULER_NO_TASK;
  if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
    return;

  s_time =
      GNUNET_STATISTICS_get (stats, "transport", "ATS timestamp", TIMEOUT, NULL,
                             &stats_cb, NULL);
  s_solution =
      GNUNET_STATISTICS_get (stats, "transport", "ATS solution", TIMEOUT, NULL,
                             &stats_cb, NULL);
  s_duration =
      GNUNET_STATISTICS_get (stats, "transport", "ATS duration", TIMEOUT, NULL,
                             &stats_cb, NULL);
  s_peers =
      GNUNET_STATISTICS_get (stats, "transport", "ATS peers", TIMEOUT, NULL,
                             &stats_cb, NULL);
  s_mechs =
      GNUNET_STATISTICS_get (stats, "transport", "ATS mechanisms", TIMEOUT,
                             NULL, &stats_cb, NULL);
  s_invalid =
      GNUNET_STATISTICS_get (stats, "transport", "ATS invalid solutions",
                             TIMEOUT, NULL, &stats_cb, NULL);
  s_state =
      GNUNET_STATISTICS_get (stats, "transport", "ATS state", TIMEOUT, NULL,
                             &stats_cb, NULL);

  stats_task =
      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
                                    (GNUNET_TIME_UNIT_MILLISECONDS, 100),
                                    &stats_get_task, NULL);
}


static void
delay (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  shutdown_task = GNUNET_SCHEDULER_NO_TASK;
  if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
    return;
#if VERBOSE
  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Delay over\n");
#endif
  shutdown_peers ();
}

static void
connect_peers ()
{
  shutdown_task = GNUNET_SCHEDULER_add_delayed (DELAY, &delay, NULL);
}


/* To make compiler happy */
void
dummy (void)
{
  struct ATS_quality_metric *q = qm;

  q = NULL;
  q++;
  struct ATS_ressource *r = ressources;

  r = NULL;
  r++;
}

static size_t
send_dummy_data_task (void *cls, size_t size, void *buf)
{
  int s = sizeof (struct TestMessage);
  struct TestMessage hdr;

  hdr.header.size = htons (s);
  hdr.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_ATS);
  if (force_rebuild)
    hdr.num = htonl (1);
  else if (force_q_updates)
    hdr.num = htonl (2);
  else
    hdr.num = htonl (0);
  memcpy (buf, &hdr, s);
  // GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Sent bytes: %i of %i\n", s, s);
  t = NULL;
  return s;
}


static void
send_task_f (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  send_task = GNUNET_SCHEDULER_NO_TASK;
  if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
    return;

  if (t != NULL)
  {
    GNUNET_TRANSPORT_notify_transmit_ready_cancel (t);
    t = NULL;
  }

  if (send_msg == GNUNET_YES)
    t = GNUNET_TRANSPORT_notify_transmit_ready (th, &master_deamon->id,
                                                sizeof (struct TestMessage), 0,
                                                SEND_TIMEOUT,
                                                &send_dummy_data_task, NULL);
  send_task =
      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
                                    (GNUNET_TIME_UNIT_MILLISECONDS, 1000),
                                    &send_task_f, NULL);

}

static void
notify_connect (void *cls, const struct GNUNET_PeerIdentity *peer,
                const struct GNUNET_ATS_Information *ats, uint32_t ats_count)
{
  send_task = GNUNET_SCHEDULER_add_now (&send_task_f, NULL);
}

static void
notify_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer)
{
  if (GNUNET_SCHEDULER_NO_TASK != send_task)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Disconnect event before transmission request could be scheduled!\n");
    GNUNET_SCHEDULER_cancel (send_task);
    send_task = GNUNET_SCHEDULER_NO_TASK;
  }
  if (NULL != t)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Disconnect event before transmission request could be completed!\n");
    GNUNET_TRANSPORT_notify_transmit_ready_cancel (t);
    t = NULL;
  }
}

static void
daemon_connect_cb (void *cls, const struct GNUNET_PeerIdentity *first,
                   const struct GNUNET_PeerIdentity *second, uint32_t distance,
                   const struct GNUNET_CONFIGURATION_Handle *first_cfg,
                   const struct GNUNET_CONFIGURATION_Handle *second_cfg,
                   struct GNUNET_TESTING_Daemon *first_daemon,
                   struct GNUNET_TESTING_Daemon *second_daemon,
                   const char *emsg)
{
  char *firstc = GNUNET_strdup (GNUNET_i2s (first));
  char *secondc = GNUNET_strdup (GNUNET_i2s (second));

  connected++;
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected peers `%s'<->`%s' (%i/%i)\n",
              firstc, secondc, connected, peers - 1);
  GNUNET_free (firstc);
  GNUNET_free (secondc);

  if (((first_daemon == ping_deamon) || (second_daemon == ping_deamon)) &&
      (master_deamon != NULL) && (ping_deamon != NULL))
  {
    th = GNUNET_TRANSPORT_connect (ping_deamon->cfg, &ping_deamon->id, NULL,
                                   NULL, &notify_connect, &notify_disconnect);
    force_q_updates = GNUNET_YES;
    send_msg = GNUNET_YES;
  }
}



static void
daemon_start_cb (void *cls, const struct GNUNET_PeerIdentity *id,
                 const struct GNUNET_CONFIGURATION_Handle *cfg,
                 struct GNUNET_TESTING_Daemon *d, const char *emsg)
{
  if (id == NULL)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Start callback called with error (too long starting peers), aborting test!\n");
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Error from testing: `%s'\n");
    failed_peers++;
    if (failed_peers == peers_left)
    {
      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                  "Too many peers failed, ending test!\n");
      ok = 1;
      shutdown_peers ();
    }
    return;
  }
  peers_left--;

  if (master_deamon == NULL)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Master peer `%s' '%s'\n",
                GNUNET_i2s (id), d->cfgfile);
    master_deamon = d;
    stats = GNUNET_STATISTICS_create ("transport", master_deamon->cfg);
    GNUNET_assert (stats != NULL);
    stats_task = GNUNET_SCHEDULER_add_now (&stats_get_task, NULL);
  }
  else
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer `%s'\n",
                GNUNET_i2s (id), GNUNET_i2s (&master_deamon->id));
    GNUNET_TESTING_daemons_connect (d, master_deamon, TIMEOUT, 0, GNUNET_YES,
                                    &daemon_connect_cb, NULL);
  }

  if (peers_left == 0)
  {
    if (ping_deamon == NULL)
    {
      ping_deamon = d;
      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ping peer `%s' '%s'\n",
                  GNUNET_i2s (id), d->cfgfile);
    }

    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "All peers started successfully!\n");
    connect_peers ();
    ok = 0;
  }
  else if (failed_peers == peers_left)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Too many peers failed, ending test!\n");
    shutdown_peers ();
    ok = 1;
  }
}


static void
run (void *cls, char *const *args, const char *cfgfile,
     const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  ok = 1;
  measurement_started = GNUNET_NO;
#if VERBOSE
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting %i peers.\n", peers);
#endif
  peers_left = peers;
  pg = GNUNET_TESTING_daemons_start (cfg, peers_left,   /* Total number of peers */
                                     peers_left,        /* Number of outstanding connections */
                                     peers_left,        /* Number of parallel ssh connections, or peers being started at once */
                                     TIMEOUT, NULL, NULL, &daemon_start_cb,
                                     NULL, NULL, NULL, NULL);
  GNUNET_assert (pg != NULL);
}


static int
check ()
{
  char *const argv[] = { "test-testing",
    "-c",
    config_file,
#if VERBOSE
    "-L", "DEBUG",
#endif
    NULL
  };
  struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_OPTION_END
  };
  GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
                      "test_transport_ats_multiple_peers", "nohelp", options,
                      &run, &ok);
  return ok;
}

int
main (int argc, char *argv[])
{
  int ret = 0;

  GNUNET_log_setup ("test-transport-ats-multiple-peers",
#if VERBOSE
                    "DEBUG",
#else
                    "INFO",
#endif
                    NULL);

  GNUNET_DISK_directory_remove ("/tmp/test-gnunet-testing");
  machine_parsable = GNUNET_NO;
  peers = NUM_PEERS;
  config_file = "test_transport_ats_4addr.conf";

  int c = 0;

  if (argc >= 2)
  {
    for (c = 0; c < argc; c++)
    {
      /* set peers */
      if ((strcmp (argv[c], "-p") == 0) && c < (argc - 1))
      {
        peers = atoi (argv[c + 1]);
        peers++;
      }
      /* set machine parsable */
      if (strcmp (argv[c], "-m") == 0)
      {
        machine_parsable = GNUNET_YES;
      }
      /* set config file */
      if ((strcmp (argv[c], "-c") == 0) && c < (argc - 1))
      {
        config_file = argv[c + 1];
      }
    }
  }

  ret = check ();
  /**
   * Still need to remove the base testing directory here,
   * because group starts will create subdirectories under this
   * main dir.  However, we no longer need to sleep, as the
   * shutdown sequence won't return until everything is cleaned
   * up.
   */
  GNUNET_DISK_directory_remove ("/tmp/test-gnunet-testing");
  return ret;
}

/* end of test_transport_ats_multiple_peers.c*/