- adding GNUNET_ATS_address_add functionality .. no changes to scheduling API yet

1 files changed, 226 insertions, 0 deletions

diff --git a/src/ats/test_ats_api_scheduling_add_address.c b/src/ats/test_ats_api_scheduling_add_address.c
new file mode 100644
index 000000000..04ece4044
--- /dev/null
+++ b/src/ats/test_ats_api_scheduling_add_address.c
@@ -0,0 +1,226 @@
+/*
+     This file is part of GNUnet.
+     (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.c
+ * @brief test automatic transport selection scheduling API
+ * @author Christian Grothoff
+ * @author Matthias Wachs
+ *
+ * TODO:
+ * - write test case
+ * - extend API to get performance data
+ * - implement simplistic strategy based on say 'lowest latency' or strict ordering
+ * - extend API to get peer preferences, implement proportional bandwidth assignment
+ * - re-implement API against a real ATS service (!)
+ */
+#include "platform.h"
+#include "gnunet_ats_service.h"
+#include "ats.h"
+
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
+
+static GNUNET_SCHEDULER_TaskIdentifier die_task;
+
+static struct GNUNET_ATS_SchedulingHandle *ats;
+
+struct GNUNET_OS_Process *arm_proc;
+
+
+
+static int ret;
+
+struct Address
+{
+  char *plugin;
+  size_t plugin_len;
+
+  void *addr;
+  size_t addr_len;
+
+  struct GNUNET_ATS_Information *ats;
+  int ats_count;
+
+  void *session;
+};
+
+struct PeerContext
+{
+  struct GNUNET_PeerIdentity id;
+
+  struct Address *addr;
+};
+
+struct Address addr;
+struct PeerContext p;
+struct GNUNET_ATS_Information atsi;
+
+static void
+stop_arm ()
+{
+  if (0 != GNUNET_OS_process_kill (arm_proc, SIGTERM))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+  GNUNET_OS_process_wait (arm_proc);
+  GNUNET_OS_process_destroy (arm_proc);
+  arm_proc = NULL;
+}
+
+
+static void
+end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  die_task = GNUNET_SCHEDULER_NO_TASK;
+  if (ats != NULL)
+    GNUNET_ATS_scheduling_done (ats);
+
+  ret = GNUNET_SYSERR;
+
+  stop_arm ();
+}
+
+
+static void
+end ()
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutting down\n");
+  if (die_task != GNUNET_SCHEDULER_NO_TASK)
+  {
+    GNUNET_SCHEDULER_cancel (die_task);
+    die_task = GNUNET_SCHEDULER_NO_TASK;
+  }
+
+  GNUNET_ATS_scheduling_done (ats);
+
+  ret = 0;
+
+  stop_arm ();
+}
+
+
+static void
+address_suggest_cb (void *cls, const struct GNUNET_HELLO_Address *address,
+                    struct Session *session,
+                    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+                    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+                    const struct GNUNET_ATS_Information *ats,
+                    uint32_t ats_count)
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "ATS suggests address `%s'\n",
+              GNUNET_i2s (&address->peer));
+
+  GNUNET_assert (0 ==
+                 memcmp (&address->peer, &p.id,
+                         sizeof (struct GNUNET_PeerIdentity)));
+  GNUNET_assert (0 == strcmp (address->transport_name, addr.plugin));
+  GNUNET_assert (address->address_length == addr.addr_len);
+  GNUNET_assert (0 ==
+                 memcmp (address->address, addr.plugin,
+                         address->address_length));
+  GNUNET_assert (addr.session == session);
+
+  ret = 0;
+
+  GNUNET_SCHEDULER_add_now (&end, NULL);
+}
+
+void
+start_arm (const char *cfgname)
+{
+  arm_proc =
+    GNUNET_OS_start_process (GNUNET_YES, NULL, NULL, "gnunet-service-arm",
+                               "gnunet-service-arm",
+                               "-c", cfgname, NULL);
+}
+
+static void
+check (void *cls, char *const *args, const char *cfgfile,
+       const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct GNUNET_HELLO_Address address0;
+
+  ret = GNUNET_SYSERR;
+
+  die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
+  start_arm (cfgfile);
+
+  ats = GNUNET_ATS_scheduling_init (cfg, &address_suggest_cb, NULL);
+
+  if (ats == NULL)
+  {
+    ret = GNUNET_SYSERR;
+    end ();
+    return;
+  }
+
+  /* set up peer */
+  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
+                                    &p.id.hashPubKey);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Created peer `%s'\n",
+              GNUNET_i2s (&p.id));
+
+  addr.plugin = "test";
+  addr.session = NULL;
+  addr.addr = GNUNET_strdup ("test");
+  addr.addr_len = 4;
+
+  /* Adding address without session */
+  address0.peer = p.id;
+  address0.transport_name = addr.plugin;
+  address0.address = addr.addr;
+  address0.address_length = addr.addr_len;
+  GNUNET_ATS_address_add (ats, &address0, addr.session, NULL, 0);
+
+  addr.session = &addr;
+  /* Update address with session */
+  GNUNET_ATS_address_add (ats, &address0, addr.session, NULL, 0);
+
+  /* Update address with session */
+  addr.session = &address0;
+  GNUNET_assert (GNUNET_OK == GNUNET_ATS_address_add (ats, &address0, addr.session, NULL, 0));
+  GNUNET_log_skip (2, GNUNET_NO);
+  GNUNET_assert (GNUNET_SYSERR == GNUNET_ATS_address_add (ats, &address0, addr.session, NULL, 0));
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Requesting peer `%s'\n",
+              GNUNET_i2s (&p.id));
+  GNUNET_ATS_suggest_address (ats, &p.id);
+}
+
+int
+main (int argc, char *argv[])
+{
+  static char *const argv2[] = { "test_ats_api_scheduling_add_address",
+    "-c",
+    "test_ats_api.conf",
+    "-L", "WARNING",
+    NULL
+  };
+
+  static struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+
+  GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2,
+                      "test_ats_api_scheduling_add_address", "nohelp", options, &check,
+                      NULL);
+
+
+  return ret;
+}
+
+/* end of file test_ats_api_scheduling.c */