gnunet/src/ats/test_ats_api_scheduling_destroy_address.c

/*
     This file is part of GNUnet.
     Copyright (C) 2010,2011 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 ats/test_ats_api_scheduling_destroy_address.c
 * @brief test destroying addresses in automatic transport selection scheduling API
 * @author Christian Grothoff
 * @author Matthias Wachs
 *
 */
#include "platform.h"
#include "gnunet_ats_service.h"
#include "gnunet_testing_lib.h"
#include "ats.h"
#include "test_ats_api_common.h"

/**
 * Timeout task
 */
static struct GNUNET_SCHEDULER_Task *die_task;

/**
 * Statistics handle
 */
static struct GNUNET_STATISTICS_Handle *stats;

/**
 * Scheduling handle
 */
static struct GNUNET_ATS_SchedulingHandle *sched_ats;

/**
 * Our address record.
 */
static struct GNUNET_ATS_AddressRecord *ar;

/**
 * Return value
 */
static int ret;

/**
 * Test address
 */
static struct Test_Address test_addr;

/**
 * Test peer
 */
static struct PeerContext p;

/**
 * HELLO address
 */
static struct GNUNET_HELLO_Address test_hello_address;

/**
 * Session
 */
static void *test_session;

/**
 * Test ats info
 */
static struct GNUNET_ATS_Information test_ats_info[2];

/**
 * Test ats count
 */
static uint32_t test_ats_count;


static int
stat_cb (void *cls, const char *subsystem,
         const char *name, uint64_t value,
         int is_persistent);


static void
end (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutting down\n");

  if (NULL != die_task)
  {
    GNUNET_SCHEDULER_cancel (die_task);
    die_task = NULL;
  }
  if (NULL != sched_ats)
  {
    GNUNET_ATS_scheduling_done (sched_ats);
    sched_ats = NULL;
  }
  GNUNET_STATISTICS_watch_cancel (stats, "ats", "# addresses",
                                  &stat_cb, NULL);
  if (NULL != stats)
  {
    GNUNET_STATISTICS_destroy (stats, GNUNET_NO);
    stats = NULL;
  }
  free_test_address (&test_addr);
  ret = 0;
}


static int
stat_cb (void *cls, const char *subsystem,
         const char *name, uint64_t value,
         int is_persistent)
{
  static int initial_ats_stat_cb = GNUNET_YES;

  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
              "ATS statistics: `%s' `%s' %llu\n",
              subsystem,
              name,
              value);

  if ((0 == value) && (initial_ats_stat_cb == GNUNET_NO))
  {
    GNUNET_SCHEDULER_add_now (&end, NULL);
  }
  if ((0 == value) && (initial_ats_stat_cb == GNUNET_YES))
  {
    initial_ats_stat_cb = GNUNET_NO;
  }
  if (1 == value)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
                "Statistics observed address added, now destroying address\n");
    GNUNET_ATS_address_destroy (ar);
    ar = NULL;
  }
  return GNUNET_OK;
}


static void
end_badly (void *cls,
           const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  die_task = NULL;
  end ( NULL, NULL);
  ret = GNUNET_SYSERR;
}


static void
address_suggest_cb (void *cls,
                    const struct GNUNET_PeerIdentity *peer,
                    const struct GNUNET_HELLO_Address *address,
                    struct Session *session,
                    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
                    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
{
  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
              "Did not expect suggestion callback!\n");
  GNUNET_SCHEDULER_shutdown ();
}


static void
got_initial_value (void *cls,
                   int success)
{
  struct GNUNET_CONFIGURATION_Handle *cfg = cls;

  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
              "Statistics running, now adding address\n");

  /* Connect to ATS scheduling */
  sched_ats = GNUNET_ATS_scheduling_init (cfg,
                                          &address_suggest_cb, NULL);
  if (NULL == sched_ats)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Could not connect to ATS scheduling!\n");
    GNUNET_SCHEDULER_shutdown ();
    return;
  }

  /* Set up peer */
  memset (&p.id, '1', sizeof (p.id));
  /* Prepare ATS Information */
  test_ats_info[0].type = htonl (GNUNET_ATS_NETWORK_TYPE);
  test_ats_info[0].value = htonl(GNUNET_ATS_NET_WAN);
  test_ats_info[1].type = htonl (GNUNET_ATS_QUALITY_NET_DISTANCE);
  test_ats_info[1].value = htonl(1);
  test_ats_count = 2;

  /* Adding address without session */
  test_session = NULL;
  create_test_address (&test_addr,
                       "test", test_session,
                       "test", strlen ("test") + 1);
  test_hello_address.peer = p.id;
  test_hello_address.transport_name = test_addr.plugin;
  test_hello_address.address = test_addr.addr;
  test_hello_address.address_length = test_addr.addr_len;

  /* Adding address */
  ar = GNUNET_ATS_address_add (sched_ats,
                               &test_hello_address,
                               test_session,
                               test_ats_info,
                               test_ats_count);
}


static int
dummy_stat (void *cls,
            const char *subsystem,
            const char *name,
            uint64_t value,
            int is_persistent)
{
  GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Got dummy stat %s%s:%s = %llu\n",
              is_persistent ? "!" : " ", subsystem, name, value);
  return GNUNET_OK;
}


static void
run (void *cls,
     const struct GNUNET_CONFIGURATION_Handle *cfg,
     struct GNUNET_TESTING_Peer *peer)
{
  die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
  stats = GNUNET_STATISTICS_create ("ats", cfg);
  GNUNET_STATISTICS_watch (stats, "ats", "# addresses", &stat_cb, NULL);
  GNUNET_STATISTICS_get (stats,
                         "ats",
                         "# addresses",
                         TIMEOUT,
                         &got_initial_value,
                         &dummy_stat,
                         GNUNET_CONFIGURATION_dup (cfg));
}


int
main (int argc, char *argv[])
{
  ret = 0;
  if (0 != GNUNET_TESTING_peer_run ("test-ats-api",
                                    "test_ats_api.conf",
                                    &run, NULL))
    return 1;
  return ret;
}

/* end of file test_ats_api_scheduling_destroy_address.c */