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/*
     This file is part of GNUnet.
     (C) 2011-2013 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 util/test_speedup.c
 * @brief testcase for speedup.c
 */
#include "platform.h"
#include "gnunet_util_lib.h"

/**
 * Start time of the testcase
 */
static struct GNUNET_TIME_Absolute start;

/**
 * End-time of the testcase (affected by speed-up)
 */
static struct GNUNET_TIME_Absolute end;

/**
 * Number of cycles we have spent in 'run'.
 */
static unsigned int cycles;


/**
 * Main task that is scheduled with the speed-up.
 *
 * @param cls NULL
 * @param tc scheduler context, unused
 */
static void
run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
  cycles++;
  fprintf (stderr, "..%u", cycles);
  if (cycles <= 5)
  {
    GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &run, NULL);
    return;
  }
  end = GNUNET_TIME_absolute_get();
  fprintf (stderr, "\n");
  fflush(stdout);
}


/**
 *
 */
static void
check (void *cls, char *const *args,
       const char *cfgfile,
       const struct GNUNET_CONFIGURATION_Handle *
       cfg)
{
  fprintf (stderr, "0");
  fflush(stdout);
  GNUNET_SCHEDULER_add_now(&run, NULL);
}


int
main (int argc, char *argv[])
{
  static char *const argvn[] = { "test-speedup",
    "-c",  "test_speedup_data.conf",
    NULL
  };
  static struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_OPTION_END
  };
  time_t start_real;
  time_t end_real;
  struct GNUNET_TIME_Relative delta;

  start_real = time (NULL);
  start = GNUNET_TIME_absolute_get();
  GNUNET_PROGRAM_run ((sizeof (argvn) / sizeof (char *)) - 1, argvn, "test-speedup",
                      "nohelp", options, &check, NULL);

  end_real = time (NULL);
  delta = GNUNET_TIME_absolute_get_difference (start, end);

  if (delta.rel_value_us >  ((end_real - start_real) * 1500LL * 1000LL))
  {
    GNUNET_log  (GNUNET_ERROR_TYPE_DEBUG,
		 "Execution time in GNUnet time: %s\n",
		 GNUNET_STRINGS_relative_time_to_string (delta, GNUNET_YES));
    GNUNET_log  (GNUNET_ERROR_TYPE_DEBUG,
		 "Execution time in system time: %llu ms\n",
		 (unsigned long long) ((end_real - start_real) * 1000LL));
    return 0;
  }
  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
	      "Execution time in GNUnet time: %s\n",
	      GNUNET_STRINGS_relative_time_to_string (delta, GNUNET_YES));
  GNUNET_log  (GNUNET_ERROR_TYPE_ERROR,
	       "Execution time in system time: %llu ms\n",
	       (unsigned long long) ((end_real - start_real) * 1000LL));
  return 1;
}

/* end of test_speedup.c */