52 строки
1.1 KiB
C
52 строки
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_TIMERQUEUE_H
|
|
#define _LINUX_TIMERQUEUE_H
|
|
|
|
#include <linux/rbtree.h>
|
|
#include <linux/ktime.h>
|
|
|
|
|
|
struct timerqueue_node {
|
|
struct rb_node node;
|
|
ktime_t expires;
|
|
};
|
|
|
|
struct timerqueue_head {
|
|
struct rb_root head;
|
|
struct timerqueue_node *next;
|
|
};
|
|
|
|
|
|
extern bool timerqueue_add(struct timerqueue_head *head,
|
|
struct timerqueue_node *node);
|
|
extern bool timerqueue_del(struct timerqueue_head *head,
|
|
struct timerqueue_node *node);
|
|
extern struct timerqueue_node *timerqueue_iterate_next(
|
|
struct timerqueue_node *node);
|
|
|
|
/**
|
|
* timerqueue_getnext - Returns the timer with the earliest expiration time
|
|
*
|
|
* @head: head of timerqueue
|
|
*
|
|
* Returns a pointer to the timer node that has the
|
|
* earliest expiration time.
|
|
*/
|
|
static inline
|
|
struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head)
|
|
{
|
|
return head->next;
|
|
}
|
|
|
|
static inline void timerqueue_init(struct timerqueue_node *node)
|
|
{
|
|
RB_CLEAR_NODE(&node->node);
|
|
}
|
|
|
|
static inline void timerqueue_init_head(struct timerqueue_head *head)
|
|
{
|
|
head->head = RB_ROOT;
|
|
head->next = NULL;
|
|
}
|
|
#endif /* _LINUX_TIMERQUEUE_H */
|