gnunet-fs-profiler.c

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/*
     This file is part of GNUnet.
     Copyright (C) 2012 GNUnet e.V.
 
     GNUnet is free software: you can redistribute it and/or modify it
     under the terms of the GNU Affero General Public License as published
     by the Free Software Foundation, either version 3 of the License,
     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
     Affero General Public License for more details.
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
     SPDX-License-Identifier: AGPL3.0-or-later
 */
 
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_testbed_service.h"
 
static int ret;
 
static char *host_filename;
 
static unsigned int num_peers;
 
static struct GNUNET_TIME_Relative timeout;
 
static struct GNUNET_SCHEDULER_Task *terminate_taskid;
 
 
static void
shutdown_task (void *cls,
               struct GNUNET_TESTBED_Operation *op,
               const char *emsg)
{
  if (NULL != emsg)
    fprintf (stderr,
             "Error collecting statistics: %s\n",
             emsg);
  GNUNET_SCHEDULER_shutdown ();
}
 
 
static int
process_stats (void *cls,
               const struct GNUNET_TESTBED_Peer *peer,
               const char *subsystem,
               const char *name,
               uint64_t value,
               int is_persistent)
{
  fprintf (stdout,
           "%p-%s: %s = %llu\n",
           peer,
           subsystem,
           name,
           (unsigned long long) value);
  return GNUNET_OK;
}
 
 
static void
terminate_task (void *cls)
{
  if (NULL != terminate_taskid)
  {
    GNUNET_SCHEDULER_cancel (terminate_taskid);
    terminate_taskid = NULL;
  }
  GNUNET_TESTBED_get_statistics (0, NULL,
                                 NULL, NULL,
                                 &process_stats,
                                 &shutdown_task,
                                 NULL);
}
 
 
static void
timeout_task (void *cls)
{
  terminate_taskid = NULL;
  GNUNET_SCHEDULER_shutdown ();
}
 
 
static void
test_master (void *cls,
             struct GNUNET_TESTBED_RunHandle *h,
             unsigned int num_peers,
             struct GNUNET_TESTBED_Peer **peers,
             unsigned int links_succeeded,
             unsigned int links_failed)
{
  // const struct GNUNET_CONFIGURATION_Handle *cfg = cls;
  // FIXME: enable clients to signal 'completion' before timeout;
  // in that case, run the 'terminate_task' "immediately"
 
  if (0 != timeout.rel_value_us)
    terminate_taskid = GNUNET_SCHEDULER_add_delayed (timeout,
                                                     &timeout_task,
                                                     NULL);
  GNUNET_SCHEDULER_add_shutdown (&terminate_task,
                                 NULL);
}
 
 
static void
run (void *cls, char *const *args, const char *cfgfile,
     const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  GNUNET_TESTBED_run (host_filename,
                      cfg,
                      num_peers,
                      0, NULL, NULL,
                      &test_master, (void *) cfg);
}
 
 
int
main (int argc, char *const *argv)
{
  struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_option_uint ('n',
                               "num-peers",
                               "COUNT",
                               gettext_noop (
                                 "run the experiment with COUNT peers"),
                               &num_peers),
 
    GNUNET_GETOPT_option_string ('H',
                                 "hosts",
                                 "HOSTFILE",
                                 gettext_noop (
                                   "specifies name of a file with the HOSTS the testbed should use"),
                                 &host_filename),
 
    GNUNET_GETOPT_option_relative_time ('t',
                                        "timeout",
                                        "DELAY",
                                        gettext_noop (
                                          "automatically terminate experiment after DELAY"),
                                        &timeout),
 
    GNUNET_GETOPT_OPTION_END
  };
 
  if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
    return 2;
 
  ret = (GNUNET_OK ==
         GNUNET_PROGRAM_run (argc, argv, "gnunet-fs-profiler",
                             gettext_noop (
                               "run a testbed to measure file-sharing performance"),
                             options, &run,
                             NULL)) ? ret : 1;
  GNUNET_free_nz ((void *) argv);
  return ret;
}
 
 
/* end of gnunet-fs-profiler.c */