82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
/*
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* Copyright (c) 2022 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/rtio/rtio_executor_simple.h>
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#include <zephyr/rtio/rtio.h>
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#include <zephyr/kernel.h>
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#include <zephyr/logging/log.h>
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LOG_MODULE_REGISTER(rtio_executor_simple, CONFIG_RTIO_LOG_LEVEL);
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/**
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* @brief Submit submissions to simple executor
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*
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* The simple executor provides no concurrency instead
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* execution each submission chain one after the next.
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*
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* @param r RTIO context
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*
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* @retval 0 Always succeeds
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*/
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int rtio_simple_submit(struct rtio *r)
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{
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/* TODO For each submission queue entry chain,
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* submit the chain to the first iodev
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*/
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struct rtio_sqe *sqe = rtio_spsc_consume(r->sq);
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if (sqe != NULL) {
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rtio_iodev_submit(sqe, r);
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}
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return 0;
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}
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/**
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* @brief Callback from an iodev describing success
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*/
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void rtio_simple_ok(struct rtio *r, const struct rtio_sqe *sqe, int result)
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{
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void *userdata = sqe->userdata;
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rtio_spsc_release(r->sq);
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rtio_cqe_submit(r, result, userdata);
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rtio_simple_submit(r);
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}
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/**
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* @brief Callback from an iodev describing error
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*/
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void rtio_simple_err(struct rtio *r, const struct rtio_sqe *sqe, int result)
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{
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struct rtio_sqe *nsqe;
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void *userdata = sqe->userdata;
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bool chained = sqe->flags & RTIO_SQE_CHAINED;
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rtio_spsc_release(r->sq);
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rtio_cqe_submit(r, result, sqe->userdata);
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if (chained) {
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nsqe = rtio_spsc_consume(r->sq);
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while (nsqe != NULL && nsqe->flags & RTIO_SQE_CHAINED) {
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userdata = nsqe->userdata;
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rtio_spsc_release(r->sq);
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rtio_cqe_submit(r, -ECANCELED, userdata);
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nsqe = rtio_spsc_consume(r->sq);
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}
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if (nsqe != NULL) {
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rtio_iodev_submit(nsqe, r);
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}
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} else {
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/* Now we can submit the next in the queue if we aren't done */
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rtio_simple_submit(r);
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}
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}
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