58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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* Copyright (c) 2016 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <kernel.h>
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#define WORKQUEUE_THREAD_NAME "workqueue"
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void z_work_q_main(void *work_q_ptr, void *p2, void *p3)
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{
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struct k_work_q *work_q = work_q_ptr;
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ARG_UNUSED(p2);
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ARG_UNUSED(p3);
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while (true) {
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struct k_work *work;
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k_work_handler_t handler;
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work = k_queue_get(&work_q->queue, K_FOREVER);
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if (work == NULL) {
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continue;
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}
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handler = work->handler;
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/* Reset pending state so it can be resubmitted by handler */
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if (atomic_test_and_clear_bit(work->flags,
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K_WORK_STATE_PENDING)) {
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handler(work);
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}
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/* Make sure we don't hog up the CPU if the FIFO never (or
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* very rarely) gets empty.
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*/
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k_yield();
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}
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}
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void k_work_q_user_start(struct k_work_q *work_q, k_thread_stack_t *stack,
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size_t stack_size, int prio)
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{
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k_queue_init(&work_q->queue);
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/* Created worker thread will inherit object permissions and memory
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* domain configuration of the caller
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*/
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k_thread_create(&work_q->thread, stack, stack_size, z_work_q_main,
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work_q, 0, 0, prio, K_USER | K_INHERIT_PERMS,
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K_FOREVER);
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k_object_access_grant(&work_q->queue, &work_q->thread);
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k_thread_name_set(&work_q->thread, WORKQUEUE_THREAD_NAME);
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k_thread_start(&work_q->thread);
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}
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