64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* wait queue for multiple threads on kernel objects */
|
|
|
|
/*
|
|
* Copyright (c) 2015 Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef ZEPHYR_KERNEL_INCLUDE_WAIT_Q_H_
|
|
#define ZEPHYR_KERNEL_INCLUDE_WAIT_Q_H_
|
|
|
|
#include <zephyr/kernel_structs.h>
|
|
#include <zephyr/sys/dlist.h>
|
|
#include <zephyr/sys/rb.h>
|
|
#include <timeout_q.h>
|
|
#include <priority_q.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifdef CONFIG_WAITQ_SCALABLE
|
|
|
|
#define _WAIT_Q_FOR_EACH(wq, thread_ptr) \
|
|
RB_FOR_EACH_CONTAINER(&(wq)->waitq.tree, thread_ptr, base.qnode_rb)
|
|
|
|
static inline void z_waitq_init(_wait_q_t *w)
|
|
{
|
|
w->waitq = (struct _priq_rb) {
|
|
.tree = {
|
|
.lessthan_fn = z_priq_rb_lessthan
|
|
}
|
|
};
|
|
}
|
|
|
|
static inline struct k_thread *z_waitq_head(_wait_q_t *w)
|
|
{
|
|
return (struct k_thread *)rb_get_min(&w->waitq.tree);
|
|
}
|
|
|
|
#else /* !CONFIG_WAITQ_SCALABLE: */
|
|
|
|
#define _WAIT_Q_FOR_EACH(wq, thread_ptr) \
|
|
SYS_DLIST_FOR_EACH_CONTAINER(&((wq)->waitq), thread_ptr, \
|
|
base.qnode_dlist)
|
|
|
|
static inline void z_waitq_init(_wait_q_t *w)
|
|
{
|
|
sys_dlist_init(&w->waitq);
|
|
}
|
|
|
|
static inline struct k_thread *z_waitq_head(_wait_q_t *w)
|
|
{
|
|
return (struct k_thread *)sys_dlist_peek_head(&w->waitq);
|
|
}
|
|
|
|
#endif /* !CONFIG_WAITQ_SCALABLE */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* ZEPHYR_KERNEL_INCLUDE_WAIT_Q_H_ */
|