rtq.c

/*
 *      mµOS            - my micro OS
 *
 * Copyright (C)
 *      2019                            Christian Thäter <ct@pipapo.org>
 *
 * 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/>.
 */

#include <muos/rtq.h>

#if MUOS_RTQ_LENGTH > 0

muos_rtq_type muos_rtq;

muos_error
muos_rtq_push_isr (muos_queue_function f, bool schedule)
{
  if (!muos_rtq_check (1))
    return muos_error_rtq_overflow;

  muos_queue_push (&muos_rtq.descriptor, MUOS_RTQ_LENGTH, f);
  muos_ready |= schedule;
  return muos_success;
}

muos_error
muos_rtq_push_arg_isr (muos_queue_function f, intptr_t a, bool schedule)
{
  if (!muos_rtq_check (2))
    return muos_error_rtq_overflow;

  muos_queue_push_arg (&muos_rtq.descriptor, MUOS_RTQ_LENGTH, f, a);
  muos_ready |= schedule;
  return muos_success;
}



muos_error
muos_rtq_push (muos_queue_function f)
{
  muos_interrupt_disable ();
  muos_error ret = muos_rtq_push_isr (f, false);
  muos_interrupt_enable ();
  return ret;
}

muos_error
muos_rtq_push_arg (muos_queue_function f, intptr_t a)
{
  muos_interrupt_disable ();
  muos_error ret = muos_rtq_push_arg_isr (f, a, false);
  muos_interrupt_enable ();
  return ret;
}


intptr_t
muos_rtq_pop (void)
{
  muos_interrupt_disable ();
  intptr_t ret = muos_queue_pop (&muos_rtq.descriptor, MUOS_RTQ_LENGTH);
  muos_interrupt_enable ();

  return ret;
}

#endif