x15/test/test_bulletin.c

/*
 * Copyright (c) 2018 Richard Braun.
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * This test makes a bulletin subscriber subscribe to a bulletin, and uses
 * a timer to periodically publish, unsubscribe, and resubscribe to the
 * bulletin. A counter is used to test passing values to the notification
 * callback function.
 */

#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>

#include <kern/bulletin.h>
#include <kern/clock.h>
#include <kern/log.h>
#include <kern/timer.h>

#include <test/test.h>

#define TEST_INTERVAL   1
#define TEST_NR_LOOPS   4

static struct bulletin test_bulletin;
static struct bulletin_sub test_bulletin_sub;
static struct timer test_timer;
static uint32_t test_counter;

static void
test_notify (uintptr_t value, void *arg)
{
  log_info ("test: notify: value:%lu arg:%p", value, arg);
}

static void
test_tick (struct timer *timer)
{
  bulletin_publish (&test_bulletin, ++test_counter);
  bulletin_unsubscribe (&test_bulletin, &test_bulletin_sub);

  if (test_counter == TEST_NR_LOOPS)
    {
      log_info ("test (bulletin): OK");
      return;
    }

  bulletin_subscribe (&test_bulletin, &test_bulletin_sub,
                      test_notify, (void *) 0x123);

  timer_schedule (&test_timer, timer_get_time (timer) +
                  clock_ticks_from_ms (TEST_INTERVAL * 1000));
}

TEST_INLINE (bulletin)
{
  bulletin_init (&test_bulletin);
  bulletin_subscribe (&test_bulletin, &test_bulletin_sub,
                      test_notify, (void *) 0x123);

  timer_init (&test_timer, test_tick, TIMER_DETACHED);
  timer_schedule (&test_timer, clock_get_time () +
                  clock_ticks_from_ms (TEST_INTERVAL * 1000));

  return (TEST_OK);
}