initial preliminary commit for ats testing lib and simulator tool

1 files changed, 814 insertions, 0 deletions

diff --git a/src/ats-tests/ats-testing.c b/src/ats-tests/ats-testing.c
new file mode 100644
index 000000000..5289c4ae7
--- /dev/null
+++ b/src/ats-tests/ats-testing.c
@@ -0,0 +1,814 @@
+/*
+ This file is part of GNUnet.
+ (C) 2010-2013 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/perf_ats.c
+ * @brief ats benchmark: start peers and modify preferences, monitor change over time
+ * @author Christian Grothoff
+ * @author Matthias Wachs
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_testbed_service.h"
+#include "gnunet_ats_service.h"
+#include "gnunet_core_service.h"
+#include "ats-testing.h"
+
+
+
+
+static struct GNUNET_ATS_TEST_Topology *top;
+
+/**
+ * Shutdown nicely
+ *
+ * @param cls NULL
+ * @param tc the task context
+ */
+static void
+do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  int c_m;
+  int c_s;
+  int c_op;
+  struct BenchmarkPeer *p;
+/*
+  if (GNUNET_YES == logging)
+    perf_logging_stop();
+*/
+  top->shutdown_task = GNUNET_SCHEDULER_NO_TASK;
+/*
+  if (GNUNET_SCHEDULER_NO_TASK != progress_task)
+  {
+    fprintf (stderr, "0\n");
+    GNUNET_SCHEDULER_cancel (progress_task);
+  }
+  progress_task = GNUNET_SCHEDULER_NO_TASK;
+*/
+  //evaluate ();
+
+  top->state.benchmarking = GNUNET_NO;
+  GNUNET_log(GNUNET_ERROR_TYPE_INFO, _("Benchmarking done\n"));
+
+  for (c_m = 0; c_m < top->num_masters; c_m++)
+  {
+    p = &top->mps[c_m];
+    if (NULL != top->mps[c_m].peer_id_op)
+    {
+      GNUNET_TESTBED_operation_done (p->peer_id_op);
+      p->peer_id_op = NULL;
+    }
+
+    if (GNUNET_SCHEDULER_NO_TASK != p->ats_task)
+      GNUNET_SCHEDULER_cancel (p->ats_task);
+    p->ats_task = GNUNET_SCHEDULER_NO_TASK;
+
+    for (c_op = 0; c_op < p->num_partners; c_op++)
+    {
+      if (NULL != p->partners[c_op].cth)
+      {
+        GNUNET_CORE_notify_transmit_ready_cancel (p->partners[c_op].cth);
+        p->partners[c_op].cth = NULL;
+      }
+      if (NULL != p->partners[c_op].tth)
+      {
+        GNUNET_TRANSPORT_notify_transmit_ready_cancel (p->partners[c_op].tth);
+        p->partners[c_op].tth = NULL;
+      }
+      if ( (NULL != p->core_connect_ops) &&
+           (NULL != p->core_connect_ops[c_op].connect_op) )
+      {
+        GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+            _("Failed to connect peer 0 and %u\n"), c_op);
+        GNUNET_TESTBED_operation_done (
+            p->core_connect_ops[c_op].connect_op);
+        p->core_connect_ops[c_op].connect_op = NULL;
+      }
+    }
+
+    if (NULL != p->ats_perf_op)
+    {
+      GNUNET_TESTBED_operation_done (p->ats_perf_op);
+      p->ats_perf_op = NULL;
+    }
+
+    if (NULL != p->comm_op)
+    {
+      GNUNET_TESTBED_operation_done (p->comm_op);
+      p->comm_op = NULL;
+    }
+    GNUNET_free_non_null (p->core_connect_ops);
+    GNUNET_free(p->partners);
+    p->partners = NULL;
+  }
+
+  for (c_s = 0; c_s < top->num_slaves; c_s++)
+  {
+    p = &top->sps[c_s];
+    if (NULL != p->peer_id_op)
+    {
+      GNUNET_TESTBED_operation_done (p->peer_id_op);
+      p->peer_id_op = NULL;
+    }
+
+    for (c_op = 0; c_op < p->num_partners; c_op++)
+    {
+      if (NULL != p->partners[c_op].cth)
+      {
+        GNUNET_CORE_notify_transmit_ready_cancel (p->partners[c_op].cth);
+        p->partners[c_op].cth = NULL;
+      }
+      if (NULL != p->partners[c_op].tth)
+      {
+        GNUNET_TRANSPORT_notify_transmit_ready_cancel (p->partners[c_op].tth);
+        p->partners[c_op].tth = NULL;
+      }
+    }
+    if (NULL != p->ats_perf_op)
+    {
+      GNUNET_TESTBED_operation_done (p->ats_perf_op);
+      p->ats_perf_op = NULL;
+    }
+    if (NULL != p->comm_op)
+    {
+      GNUNET_TESTBED_operation_done (p->comm_op);
+      p->comm_op = NULL;
+    }
+    GNUNET_free(p->partners);
+    p->partners = NULL;
+  }
+
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+static struct BenchmarkPartner *
+find_partner (struct BenchmarkPeer *me, const struct GNUNET_PeerIdentity * peer)
+{
+  int c_m;
+  GNUNET_assert (NULL != me);
+  GNUNET_assert (NULL != peer);
+
+  for (c_m = 0; c_m < me->num_partners; c_m++)
+  {
+    /* Find a partner with other as destination */
+    if (0 == memcmp (peer, &me->partners[c_m].dest->id,
+            sizeof(struct GNUNET_PeerIdentity)))
+    {
+      return &me->partners[c_m];
+    }
+  }
+
+  return NULL;
+}
+
+
+static struct BenchmarkPeer *
+find_peer (const struct GNUNET_PeerIdentity * peer)
+{
+  int c_p;
+
+  for (c_p = 0; c_p < top->num_masters; c_p++)
+  {
+    if (0 == memcmp (&top->mps[c_p].id, peer, sizeof(struct GNUNET_PeerIdentity)))
+      return &top->mps[c_p];
+  }
+
+  for (c_p = 0; c_p < top->num_slaves; c_p++)
+  {
+    if (0 == memcmp (&top->sps[c_p].id, peer, sizeof(struct GNUNET_PeerIdentity)))
+      return &top->sps[c_p];
+  }
+  return NULL ;
+}
+
+
+/**
+ * Method called whenever a given peer connects.
+ *
+ * @param cls closure
+ * @param peer peer identity this notification is about
+ */
+static void
+comm_connect_cb (void *cls, const struct GNUNET_PeerIdentity * peer)
+{
+  struct BenchmarkPeer *me = cls;
+  struct BenchmarkPeer *remote;
+  char *id;
+  int c;
+  int completed;
+
+  remote = find_peer (peer);
+  if (NULL == remote)
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Unknown peer connected: `%s'\n", GNUNET_i2s (peer));
+    GNUNET_break(0);
+    return;
+  }
+
+  id = GNUNET_strdup (GNUNET_i2s (&me->id));
+  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s [%u] `%s' connected to %s [%u] %s\n",
+      (me->master == GNUNET_YES) ? "Master": "Slave", me->no, id,
+      (remote->master == GNUNET_YES) ? "Master": "Slave", remote->no,
+      GNUNET_i2s (peer));
+
+  me->core_connections++;
+  if ((GNUNET_YES == me->master) && (GNUNET_NO == remote->master)
+      && (GNUNET_NO == top->state.connected_CORE))
+  {
+    me->core_slave_connections++;
+
+    if (me->core_slave_connections == top->num_slaves)
+    {
+      GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Master [%u] connected all slaves\n",
+          me->no);
+    }
+    completed = GNUNET_YES;
+    for (c = 0; c < top->num_masters; c++)
+    {
+      if (top->mps[c].core_slave_connections != top->num_slaves)
+        completed = GNUNET_NO;
+    }
+    if (GNUNET_YES == completed)
+    {
+      GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+          "All master peers connected all slave peers\n", id,
+          GNUNET_i2s (peer));
+      top->state.connected_CORE = GNUNET_YES;
+      GNUNET_break (0);
+      //GNUNET_SCHEDULER_add_now (&do_benchmark, NULL );
+    }
+  }
+  GNUNET_free(id);
+}
+
+static void
+comm_disconnect_cb (void *cls, const struct GNUNET_PeerIdentity * peer)
+{
+  struct BenchmarkPeer *me = cls;
+  struct BenchmarkPartner *p;
+  char *id;
+
+  if (NULL == (p = find_partner (me, peer)))
+    return;
+
+  id = GNUNET_strdup (GNUNET_i2s (&me->id));
+  GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s disconnected from %s \n", id,
+      GNUNET_i2s (peer));
+  GNUNET_assert(me->core_connections > 0);
+  me->core_connections--;
+
+  if ((GNUNET_YES == top->state.benchmarking)
+      && ((GNUNET_YES == me->master) || (GNUNET_YES == p->dest->master)))
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+        "%s disconnected from %s while benchmarking \n", id, GNUNET_i2s (peer));
+    if (NULL != p->tth)
+    {
+      GNUNET_TRANSPORT_notify_transmit_ready_cancel (p->tth);
+      p->tth = NULL;
+    }
+    if (NULL != p->cth)
+    {
+      GNUNET_CORE_notify_transmit_ready_cancel (p->cth);
+      p->cth = NULL;
+    }
+  }
+  GNUNET_free(id);
+}
+
+
+static void *
+core_connect_adapter (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct BenchmarkPeer *me = cls;
+
+  me->ch = GNUNET_CORE_connect (cfg, me, NULL, comm_connect_cb,
+      comm_disconnect_cb, NULL, GNUNET_NO, NULL, GNUNET_NO, top->handlers);
+  if (NULL == me->ch)
+    GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to create core connection \n");
+  return me->ch;
+}
+
+static void
+core_disconnect_adapter (void *cls, void *op_result)
+{
+  struct BenchmarkPeer *me = cls;
+
+  GNUNET_CORE_disconnect (me->ch);
+  me->ch = NULL;
+}
+
+
+static void *
+transport_connect_adapter (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct BenchmarkPeer *me = cls;
+
+  me->th = GNUNET_TRANSPORT_connect (cfg, &me->id, me, top->transport_recv_cb,
+      &comm_connect_cb, &comm_disconnect_cb);
+  if (NULL == me->th)
+    GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to create transport connection \n");
+  return me->th;
+}
+
+static void
+transport_disconnect_adapter (void *cls, void *op_result)
+{
+  struct BenchmarkPeer *me = cls;
+
+  GNUNET_TRANSPORT_disconnect (me->th);
+  me->th = NULL;
+}
+
+
+static void
+connect_completion_callback (void *cls, struct GNUNET_TESTBED_Operation *op,
+    const char *emsg)
+{
+  struct TestbedConnectOperation *cop = cls;
+  static int ops = 0;
+  int c;
+  if (NULL == emsg)
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+        _("Connected master [%u] with slave [%u]\n"), cop->master->no,
+        cop->slave->no);
+  }
+  else
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+        _("Failed to connect master peer [%u] with slave [%u]\n"),
+        cop->master->no, cop->slave->no);
+    GNUNET_break(0);
+    if (GNUNET_SCHEDULER_NO_TASK != top->shutdown_task)
+      GNUNET_SCHEDULER_cancel (top->shutdown_task);
+    top->shutdown_task = GNUNET_SCHEDULER_add_now (do_shutdown, NULL );
+  }
+  GNUNET_TESTBED_operation_done (op);
+  ops++;
+  for (c = 0; c < top->num_slaves; c++)
+  {
+    if (cop == &cop->master->core_connect_ops[c])
+      cop->master->core_connect_ops[c].connect_op = NULL;
+  }
+  if (ops == top->num_masters * top->num_slaves)
+  {
+    top->state.connected_PEERS = GNUNET_YES;
+    GNUNET_break (0);
+    //GNUNET_SCHEDULER_add_now (&do_benchmark, NULL );
+  }
+}
+
+static void
+do_connect_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  int c_m;
+  int c_s;
+  struct BenchmarkPeer *p;
+
+  if ((top->state.connected_ATS_service == GNUNET_NO) ||
+      (top->state.connected_COMM_service == GNUNET_NO))
+    return;
+
+  GNUNET_log(GNUNET_ERROR_TYPE_INFO, _("Connecting peers on CORE level\n"));
+
+  for (c_m = 0; c_m < top->num_masters; c_m++)
+  {
+    p = &top->mps[c_m];
+    p->core_connect_ops = GNUNET_malloc (top->num_slaves *
+        sizeof (struct TestbedConnectOperation));
+
+    for (c_s = 0; c_s < top->num_slaves; c_s++)
+    {
+      GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+          _("Connecting master [%u] with slave [%u]\n"), p->no, top->sps[c_s].no);
+      p->core_connect_ops[c_s].master = p;
+      p->core_connect_ops[c_s].slave = &top->sps[c_s];
+      p->core_connect_ops[c_s].connect_op = GNUNET_TESTBED_overlay_connect (
+          NULL, &connect_completion_callback, &p->core_connect_ops[c_s],
+          top->sps[c_s].peer, p->peer);
+      if (NULL == p->core_connect_ops[c_s].connect_op)
+      {
+        GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+            _("Could not connect master [%u] and slave [%u]\n"), p->no,
+            top->sps[c_s].no);
+        GNUNET_break(0);
+        if (GNUNET_SCHEDULER_NO_TASK != top->shutdown_task)
+          GNUNET_SCHEDULER_cancel (top->shutdown_task);
+        top->shutdown_task = GNUNET_SCHEDULER_add_now (do_shutdown, NULL );
+        return;
+      }
+    }
+  }
+}
+
+
+static void
+comm_connect_completion_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
+    void *ca_result, const char *emsg)
+{
+  static int comm_done = 0;
+  if ((NULL != emsg) || (NULL == ca_result))
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_INFO, _("Initialization failed, shutdown\n"));
+    GNUNET_break(0);
+    if (GNUNET_SCHEDULER_NO_TASK != top->shutdown_task)
+      GNUNET_SCHEDULER_cancel (top->shutdown_task);
+    top->shutdown_task = GNUNET_SCHEDULER_add_now (do_shutdown, NULL );
+    return;
+  }
+  comm_done++;
+
+  if (comm_done == top->num_slaves + top->num_masters)
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Connected to all %s services\n",
+        (GNUNET_YES == top->test_core) ? "CORE" : "TRANSPORT");
+    top->state.connected_COMM_service = GNUNET_YES;
+    GNUNET_break (0);
+    GNUNET_SCHEDULER_add_now (&do_connect_peers, NULL );
+  }
+}
+
+static void
+do_comm_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  int c_s;
+  int c_m;
+  GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Connecting to all %s services\n",
+      (GNUNET_YES == top->test_core) ? "CORE" : "TRANSPORT");
+  for (c_m = 0; c_m < top->num_masters; c_m++)
+  {
+    if (GNUNET_YES == top->test_core)
+      top->mps[c_m].comm_op = GNUNET_TESTBED_service_connect (NULL, top->mps[c_m].peer,
+        "core", &comm_connect_completion_cb, NULL, &core_connect_adapter,
+        &core_disconnect_adapter, &top->mps[c_m]);
+    else
+    {
+      top->mps[c_m].comm_op = GNUNET_TESTBED_service_connect (NULL, top->mps[c_m].peer,
+        "transport", &comm_connect_completion_cb, NULL, &transport_connect_adapter,
+        &transport_disconnect_adapter, &top->mps[c_m]);
+    }
+  }
+
+  for (c_s = 0; c_s < top->num_slaves; c_s++)
+  {
+    if (GNUNET_YES == top->test_core)
+      top->sps[c_s].comm_op = GNUNET_TESTBED_service_connect (NULL, top->sps[c_s].peer,
+        "core", &comm_connect_completion_cb, NULL, &core_connect_adapter,
+        &core_disconnect_adapter, &top->sps[c_s]);
+    else
+    {
+      top->sps[c_s].comm_op = GNUNET_TESTBED_service_connect (NULL, top->sps[c_s].peer,
+        "transport", &comm_connect_completion_cb, NULL, &transport_connect_adapter,
+        &transport_disconnect_adapter, &top->sps[c_s]);
+    }
+  }
+}
+
+
+
+static void
+ats_performance_info_cb (void *cls, const struct GNUNET_HELLO_Address *address,
+    int address_active, struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+    const struct GNUNET_ATS_Information *ats, uint32_t ats_count)
+{
+  struct BenchmarkPeer *me = cls;
+  struct BenchmarkPartner *p;
+  int c_a;
+  int log;
+  char *peer_id;
+
+  p = find_partner (me, &address->peer);
+  if (NULL == p)
+  {
+    /* This is not one of my partners
+     * Will happen since the peers will connect to each other due to gossiping
+     */
+    return;
+  }
+  peer_id = GNUNET_strdup (GNUNET_i2s (&me->id));
+
+  log = GNUNET_NO;
+  if ((p->bandwidth_in != ntohl (bandwidth_in.value__)) ||
+      (p->bandwidth_out != ntohl (bandwidth_out.value__)))
+      log = GNUNET_YES;
+  p->bandwidth_in = ntohl (bandwidth_in.value__);
+  p->bandwidth_out = ntohl (bandwidth_out.value__);
+
+  for (c_a = 0; c_a < ats_count; c_a++)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%s [%u] received ATS information: %s %s %u\n",
+        (GNUNET_YES == p->me->master) ? "Master" : "Slave",
+        p->me->no,
+        GNUNET_i2s (&p->dest->id),
+        GNUNET_ATS_print_property_type(ntohl(ats[c_a].type)),
+        ntohl(ats[c_a].value));
+    switch (ntohl (ats[c_a].type ))
+    {
+      case GNUNET_ATS_ARRAY_TERMINATOR:
+        break;
+      case GNUNET_ATS_UTILIZATION_OUT:
+        if (p->ats_utilization_up != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_utilization_up = ntohl (ats[c_a].value);
+
+        break;
+      case GNUNET_ATS_UTILIZATION_IN:
+        if (p->ats_utilization_down != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_utilization_down = ntohl (ats[c_a].value);
+        break;
+      case GNUNET_ATS_NETWORK_TYPE:
+        if (p->ats_network_type != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_network_type = ntohl (ats[c_a].value);
+        break;
+      case GNUNET_ATS_QUALITY_NET_DELAY:
+        if (p->ats_delay != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_delay = ntohl (ats[c_a].value);
+        break;
+      case GNUNET_ATS_QUALITY_NET_DISTANCE:
+        if (p->ats_distance != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_distance = ntohl (ats[c_a].value);
+        GNUNET_break (0);
+        break;
+      case GNUNET_ATS_COST_WAN:
+        if (p->ats_cost_wan != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_cost_wan = ntohl (ats[c_a].value);
+        break;
+      case GNUNET_ATS_COST_LAN:
+        if (p->ats_cost_lan != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_cost_lan = ntohl (ats[c_a].value);
+        break;
+      case GNUNET_ATS_COST_WLAN:
+        if (p->ats_cost_wlan != ntohl (ats[c_a].value))
+            log = GNUNET_YES;
+        p->ats_cost_wlan = ntohl (ats[c_a].value);
+        break;
+      default:
+        break;
+    }
+  }
+  if ((GNUNET_YES == top->logging) && (GNUNET_YES == log))
+  {
+//    collect_log_now();
+  }
+  GNUNET_free(peer_id);
+}
+
+
+static void *
+ats_perf_connect_adapter (void *cls,
+    const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct BenchmarkPeer *me = cls;
+
+  me->ats_perf_handle = GNUNET_ATS_performance_init (cfg,
+      &ats_performance_info_cb, me);
+  if (NULL == me->ats_perf_handle)
+    GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
+        "Failed to create ATS performance handle \n");
+  return me->ats_perf_handle;
+}
+
+static void
+ats_perf_disconnect_adapter (void *cls, void *op_result)
+{
+  struct BenchmarkPeer *me = cls;
+
+  GNUNET_ATS_performance_done (me->ats_perf_handle);
+  me->ats_perf_handle = NULL;
+}
+
+static void
+ats_connect_completion_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
+    void *ca_result, const char *emsg)
+{
+  static int op_done = 0;
+
+  if ((NULL != emsg) || (NULL == ca_result))
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_INFO, _("Initialization failed, shutdown\n"));
+    GNUNET_break(0);
+    if (GNUNET_SCHEDULER_NO_TASK != top->shutdown_task)
+      GNUNET_SCHEDULER_cancel (top->shutdown_task);
+    top->shutdown_task = GNUNET_SCHEDULER_add_now (do_shutdown, NULL );
+    return;
+  }
+  op_done++;
+  if (op_done == (top->num_masters + top->num_slaves))
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Connected to all ATS services\n");
+    top->state.connected_ATS_service = GNUNET_YES;
+    GNUNET_SCHEDULER_add_now (&do_comm_connect, NULL );
+  }
+}
+
+
+static void
+do_connect_ats (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  int c_m;
+  int c_s;
+
+  GNUNET_log(GNUNET_ERROR_TYPE_INFO, "Connecting to all ATS services\n");
+  for (c_m = 0; c_m < top->num_masters; c_m++)
+  {
+    top->mps[c_m].ats_perf_op = GNUNET_TESTBED_service_connect (NULL,
+        top->mps[c_m].peer,
+        "ats", ats_connect_completion_cb, NULL,
+        &ats_perf_connect_adapter,
+        &ats_perf_disconnect_adapter, &top->mps[c_m]);
+  }
+
+  for (c_s = 0; c_s < top->num_slaves; c_s++)
+  {
+    top->sps[c_s].ats_perf_op = GNUNET_TESTBED_service_connect (NULL, top->sps[c_s].peer,
+        "ats", ats_connect_completion_cb, NULL, &ats_perf_connect_adapter,
+        &ats_perf_disconnect_adapter, &top->sps[c_s]);
+  }
+}
+
+
+
+static void
+peerinformation_cb (void *cb_cls, struct GNUNET_TESTBED_Operation *op,
+    const struct GNUNET_TESTBED_PeerInformation*pinfo, const char *emsg)
+{
+  struct BenchmarkPeer *p = cb_cls;
+  static int done = 0;
+
+  GNUNET_assert(pinfo->pit == GNUNET_TESTBED_PIT_IDENTITY);
+
+  p->id = *pinfo->result.id;
+  GNUNET_log(GNUNET_ERROR_TYPE_INFO, "%s [%u] has peer id `%s'\n",
+      (p->master == GNUNET_YES) ? "Master" : "Slave", p->no,
+      GNUNET_i2s (&p->id));
+
+  GNUNET_TESTBED_operation_done (op);
+  p->peer_id_op = NULL;
+  done++;
+
+  if (done == top->num_slaves + top->num_masters)
+  {
+    GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+        "Retrieved all peer ID, connect to ATS\n");
+    GNUNET_SCHEDULER_add_now (&do_connect_ats, NULL );
+  }
+}
+
+/**
+ * Signature of a main function for a testcase.
+ *
+ * @param cls closure
+ * @param num_peers number of peers in 'peers'
+ * @param peers_ handle to peers run in the testbed
+ * @param links_succeeded the number of overlay link connection attempts that
+ *          succeeded
+ * @param links_failed the number of overlay link connection attempts that
+ *          failed
+ */
+static void
+main_run (void *cls, struct GNUNET_TESTBED_RunHandle *h,
+          unsigned int num_peers,
+          struct GNUNET_TESTBED_Peer **peers_,
+          unsigned int links_succeeded,
+          unsigned int links_failed)
+{
+  int c_m;
+  int c_s;
+  GNUNET_assert(NULL == cls);
+  GNUNET_assert(top->num_masters + top->num_slaves == num_peers);
+  GNUNET_assert(NULL != peers_);
+
+  top->shutdown_task = GNUNET_SCHEDULER_add_delayed (
+      GNUNET_TIME_relative_multiply (TEST_TIMEOUT, top->num_masters + top->num_slaves),
+      &do_shutdown, top );
+
+  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Setting up %u masters and %u slaves\n",
+      top->num_masters, top->num_slaves);
+
+  /* Setup master peers */
+  for (c_m = 0; c_m < top->num_masters; c_m++)
+  {
+    GNUNET_assert(NULL != peers_[c_m]);
+    top->mps[c_m].peer = peers_[c_m];
+    top->mps[c_m].no = c_m;
+    top->mps[c_m].master = GNUNET_YES;
+    top->mps[c_m].pref_partner = &top->sps[c_m];
+    top->mps[c_m].pref_value = TEST_ATS_PREFRENCE_START;
+    top->mps[c_m].partners =
+        GNUNET_malloc (top->num_slaves * sizeof (struct BenchmarkPartner));
+    top->mps[c_m].num_partners = top->num_slaves;
+    /* Initialize partners */
+    for (c_s = 0; c_s < top->num_slaves; c_s++)
+    {
+      top->mps[c_m].partners[c_s].me = &top->mps[c_m];
+      top->mps[c_m].partners[c_s].dest = &top->sps[c_s];
+    }
+    /* Get configuration */
+    top->mps[c_m].peer_id_op = GNUNET_TESTBED_peer_get_information (top->mps[c_m].peer,
+        GNUNET_TESTBED_PIT_IDENTITY, &peerinformation_cb, &top->mps[c_m]);
+  }
+
+  /* Setup slave peers */
+  for (c_s = 0; c_s < top->num_slaves; c_s++)
+  {
+    GNUNET_assert(NULL != peers_[c_s + top->num_masters]);
+    top->sps[c_s].peer = peers_[c_s + top->num_masters];
+    top->sps[c_s].no = c_s + top->num_masters;
+    top->sps[c_s].master = GNUNET_NO;
+    top->sps[c_s].partners =
+        GNUNET_malloc (top->num_masters * sizeof (struct BenchmarkPartner));
+    top->sps[c_s].num_partners = top->num_masters;
+    /* Initialize partners */
+    for (c_m = 0; c_m < top->num_masters; c_m++)
+    {
+      top->sps[c_s].partners[c_m].me = &top->sps[c_s];
+      top->sps[c_s].partners[c_m].dest = &top->mps[c_m];
+    }
+    /* Get configuration */
+    top->sps[c_s].peer_id_op = GNUNET_TESTBED_peer_get_information (top->sps[c_s].peer,
+        GNUNET_TESTBED_PIT_IDENTITY, &peerinformation_cb, &top->sps[c_s]);
+  }
+}
+
+/**
+ * Controller event callback
+ *
+ * @param cls NULL
+ * @param event the controller event
+ */
+static void
+controller_event_cb (void *cls,
+    const struct GNUNET_TESTBED_EventInformation *event)
+{
+  struct GNUNET_ATS_TEST_Topology *top = cls;
+  switch (event->type)
+  {
+  case GNUNET_TESTBED_ET_CONNECT:
+    break;
+  case GNUNET_TESTBED_ET_OPERATION_FINISHED:
+    break;
+  default:
+    GNUNET_break(0);
+    GNUNET_SCHEDULER_cancel (top->shutdown_task);
+    top->shutdown_task = GNUNET_SCHEDULER_add_now (&do_shutdown, NULL );
+  }
+}
+
+struct GNUNET_ATS_TEST_Topology *
+GNUNET_ATS_TEST_create_topology (char *name, char *cfg_file,
+    unsigned int num_slaves,
+    unsigned int num_masters,
+    struct GNUNET_CORE_MessageHandler *handlers,
+    GNUNET_TRANSPORT_ReceiveCallback transport_recv_cb)
+{
+  top = GNUNET_new (struct GNUNET_ATS_TEST_Topology);
+  top->num_masters = num_masters;
+  top->num_slaves = num_slaves;
+  top->handlers = handlers;
+
+  top->mps = GNUNET_malloc (num_masters * sizeof (struct BenchmarkPeer));
+  top->sps = GNUNET_malloc (num_slaves * sizeof (struct BenchmarkPeer));
+
+  /* Start topology */
+  uint64_t event_mask;
+  event_mask = 0;
+  event_mask |= (1LL << GNUNET_TESTBED_ET_CONNECT);
+  event_mask |= (1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED);
+  (void) GNUNET_TESTBED_test_run (name, cfg_file,
+      num_slaves + num_masters, event_mask, &controller_event_cb, NULL,
+      &main_run, NULL);
+
+  return NULL;
+}
+
+void
+GNUNET_ATS_TEST_destroy_topology (struct GNUNET_ATS_TEST_Topology *top)
+{
+
+}
+
+/* end of file perf_ats.c */