zephyr/subsys/rtio/rtio_sched.c

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/*
* Copyright (c) 2025 Croxel Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/rtio/rtio.h>
/** Required to access Timeout Queue APIs, which are used instead of the
* Timer APIs because of concerns on size on rtio_sqe (k_timer is more
* than double the size of _timeout). Users will have to instantiate a
* pool of SQE objects, thus its size directly impacts memory footprint
* of RTIO applications.
*/
#include <../kernel/include/timeout_q.h>
#include "rtio_sched.h"
static void rtio_sched_alarm_expired(struct _timeout *t)
{
struct rtio_sqe *sqe = CONTAINER_OF(t, struct rtio_sqe, delay.to);
struct rtio_iodev_sqe *iodev_sqe = CONTAINER_OF(sqe, struct rtio_iodev_sqe, sqe);
rtio_iodev_sqe_ok(iodev_sqe, 0);
}
void rtio_sched_alarm(struct rtio_iodev_sqe *iodev_sqe, k_timeout_t timeout)
{
struct rtio_sqe *sqe = &iodev_sqe->sqe;
z_init_timeout(&sqe->delay.to);
z_add_timeout(&sqe->delay.to, rtio_sched_alarm_expired, timeout);
}