mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-06 00:45:53 +00:00
ac74d8b652
Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
141 lines
2.7 KiB
C
141 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 2016 Intel Corporation
|
|
* Copyright (c) 2016 Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
*
|
|
* Workqueue support functions
|
|
*/
|
|
|
|
#include <kernel_structs.h>
|
|
#include <wait_q.h>
|
|
#include <errno.h>
|
|
|
|
static void work_q_main(void *work_q_ptr, void *p2, void *p3)
|
|
{
|
|
struct k_work_q *work_q = work_q_ptr;
|
|
|
|
ARG_UNUSED(p2);
|
|
ARG_UNUSED(p3);
|
|
|
|
while (1) {
|
|
struct k_work *work;
|
|
k_work_handler_t handler;
|
|
|
|
work = k_fifo_get(&work_q->fifo, K_FOREVER);
|
|
|
|
handler = work->handler;
|
|
|
|
/* Reset pending state so it can be resubmitted by handler */
|
|
if (atomic_test_and_clear_bit(work->flags,
|
|
K_WORK_STATE_PENDING)) {
|
|
handler(work);
|
|
}
|
|
|
|
/* Make sure we don't hog up the CPU if the FIFO never (or
|
|
* very rarely) gets empty.
|
|
*/
|
|
k_yield();
|
|
}
|
|
}
|
|
|
|
void k_work_q_start(struct k_work_q *work_q, char *stack,
|
|
size_t stack_size, int prio)
|
|
{
|
|
k_fifo_init(&work_q->fifo);
|
|
|
|
k_thread_spawn(stack, stack_size,
|
|
work_q_main, work_q, 0, 0,
|
|
prio, 0, 0);
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_CLOCK_EXISTS
|
|
static void work_timeout(struct _timeout *t)
|
|
{
|
|
struct k_delayed_work *w = CONTAINER_OF(t, struct k_delayed_work,
|
|
timeout);
|
|
|
|
/* submit work to workqueue */
|
|
k_work_submit_to_queue(w->work_q, &w->work);
|
|
/* detach from workqueue, for cancel to return appropriate status */
|
|
w->work_q = NULL;
|
|
}
|
|
|
|
void k_delayed_work_init(struct k_delayed_work *work, k_work_handler_t handler)
|
|
{
|
|
k_work_init(&work->work, handler);
|
|
_init_timeout(&work->timeout, work_timeout);
|
|
work->work_q = NULL;
|
|
}
|
|
|
|
int k_delayed_work_submit_to_queue(struct k_work_q *work_q,
|
|
struct k_delayed_work *work,
|
|
int32_t delay)
|
|
{
|
|
int key = irq_lock();
|
|
int err;
|
|
|
|
/* Work cannot be active in multiple queues */
|
|
if (work->work_q && work->work_q != work_q) {
|
|
err = -EADDRINUSE;
|
|
goto done;
|
|
}
|
|
|
|
/* Cancel if work has been submitted */
|
|
if (work->work_q == work_q) {
|
|
err = k_delayed_work_cancel(work);
|
|
if (err < 0) {
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Attach workqueue so the timeout callback can submit it */
|
|
work->work_q = work_q;
|
|
|
|
if (!delay) {
|
|
/* Submit work if no ticks is 0 */
|
|
k_work_submit_to_queue(work_q, &work->work);
|
|
} else {
|
|
/* Add timeout */
|
|
_add_timeout(NULL, &work->timeout, NULL,
|
|
_TICK_ALIGN + _ms_to_ticks(delay));
|
|
}
|
|
|
|
err = 0;
|
|
|
|
done:
|
|
irq_unlock(key);
|
|
|
|
return err;
|
|
}
|
|
|
|
int k_delayed_work_cancel(struct k_delayed_work *work)
|
|
{
|
|
int key = irq_lock();
|
|
|
|
if (k_work_pending(&work->work)) {
|
|
irq_unlock(key);
|
|
return -EINPROGRESS;
|
|
}
|
|
|
|
if (!work->work_q) {
|
|
irq_unlock(key);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Abort timeout, if it has expired this will do nothing */
|
|
_abort_timeout(&work->timeout);
|
|
|
|
/* Detach from workqueue */
|
|
work->work_q = NULL;
|
|
|
|
irq_unlock(key);
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_SYS_CLOCK_EXISTS */
|