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path: root/src/statistics/test_statistics_api_watch_zero_value.c
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/*
     This file is part of GNUnet.
     Copyright (C) 2009, 2011, 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
 */
/**
 * @file statistics/test_statistics_api_watch_zero_value.c
 * @brief testcase for statistics_api.c watch functions with initial 0 value
 */
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_statistics_service.h"

static int ok;

static int ok2;

static struct GNUNET_STATISTICS_Handle *h;

static struct GNUNET_STATISTICS_Handle *h2;

static struct GNUNET_SCHEDULER_Task *shutdown_task;


static void
force_shutdown (void *cls)
{
  fprintf (stderr, "Timeout, failed to receive notifications: %d\n", ok);
  GNUNET_STATISTICS_destroy (h, GNUNET_NO);
  GNUNET_STATISTICS_destroy (h2, GNUNET_NO);
  ok = 7;
}


static void
normal_shutdown (void *cls)
{
  GNUNET_STATISTICS_destroy (h, GNUNET_NO);
  GNUNET_STATISTICS_destroy (h2, GNUNET_NO);
}


static int
watch_1 (void *cls, const char *subsystem, const char *name, uint64_t value,
         int is_persistent)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Received value `%s' `%s' %llu\n",
              subsystem,
              name,
              (unsigned long long) value);
  GNUNET_assert (0 == strcmp (name, "test-1"));
  if ((0 == value) && (3 == ok))
  {
    ok--;
    GNUNET_STATISTICS_set (h, "test-1", 42, GNUNET_NO);
  }

  if ((42 == value) && (2 == ok))
  {
    ok--;
    GNUNET_STATISTICS_set (h, "test-1", 0, GNUNET_NO);
  }

  if ((0 == value) && (1 == ok))
  {
    ok--;
  }
  if ((0 == ok) && (0 == ok2))
  {
    GNUNET_SCHEDULER_cancel (shutdown_task);
    GNUNET_SCHEDULER_add_now (&normal_shutdown, NULL);
  }

  return GNUNET_OK;
}


static int
watch_2 (void *cls,
         const char *subsystem,
         const char *name,
         uint64_t value,
         int is_persistent)
{
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Received value `%s' `%s' %llu\n",
              subsystem,
              name,
              (unsigned long long) value);

  GNUNET_assert (0 == strcmp (name, "test-2"));
  if ((42 == value) && (1 == ok2))
  {
    ok2 = 0;
    if (0 == ok)
    {
      GNUNET_SCHEDULER_cancel (shutdown_task);
      GNUNET_SCHEDULER_add_now (&normal_shutdown, NULL);
    }
  }
  else
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Received unexpected value %llu\n",
                (unsigned long long) value);

    GNUNET_break (0);
    GNUNET_SCHEDULER_cancel (shutdown_task);
    GNUNET_SCHEDULER_add_now (&normal_shutdown, NULL);
  }

  return GNUNET_OK;
}


static void
run (void *cls, char *const *args, const char *cfgfile,
     const struct GNUNET_CONFIGURATION_Handle *cfg)
{
  h = GNUNET_STATISTICS_create ("dummy", cfg);
  h2 = GNUNET_STATISTICS_create ("dummy-2", cfg);
  GNUNET_assert (GNUNET_OK ==
                 GNUNET_STATISTICS_watch (h, "dummy",
                                          "test-1", &watch_1, NULL));

  GNUNET_assert (GNUNET_OK ==
                 GNUNET_STATISTICS_watch (h2, "dummy-2",
                                          "test-2", &watch_2, NULL));

  /* Set initial value to 0 */
  GNUNET_STATISTICS_set (h, "test-1", 0, GNUNET_NO);
  GNUNET_STATISTICS_set (h2, "test-2", 42, GNUNET_NO);

  shutdown_task =
    GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES,
                                  &force_shutdown,
                                  NULL);
}


int
main (int argc, char *argv_ign[])
{
  char *const argv[] = { "test-statistics-api",
                         "-c",
                         "test_statistics_api_data.conf",
                         NULL };
  struct GNUNET_GETOPT_CommandLineOption options[] = {
    GNUNET_GETOPT_OPTION_END
  };
  struct GNUNET_OS_Process *proc;
  char *binary;

  binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-statistics");
  proc =
    GNUNET_OS_start_process (GNUNET_YES, GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
                             NULL, NULL, NULL,
                             binary,
                             "gnunet-service-statistics",
                             "-c", "test_statistics_api_data.conf", NULL);
  GNUNET_assert (NULL != proc);
  ok = 3;
  ok2 = 1;
  GNUNET_PROGRAM_run (3, argv, "test-statistics-api", "nohelp", options, &run,
                      NULL);
  if (0 != GNUNET_OS_process_kill (proc, GNUNET_TERM_SIG))
  {
    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
    ok = 1;
  }
  GNUNET_OS_process_wait (proc);
  GNUNET_OS_process_destroy (proc);
  proc = NULL;
  GNUNET_free (binary);
  if ((0 == ok) && (0 == ok2))
    return 0;
  return 1;
}


/* end of test_statistics_api_watch_zero_value.c */