Server : Apache/2.4.41 (Ubuntu) System : Linux journalup 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/src/linux-headers-5.4.0-200/include/linux/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

/* 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_cached rb_root;
};


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)
{
	struct rb_node *leftmost = rb_first_cached(&head->rb_root);

	return rb_entry_safe(leftmost, struct timerqueue_node, node);
}

static inline void timerqueue_init(struct timerqueue_node *node)
{
	RB_CLEAR_NODE(&node->node);
}

static inline bool timerqueue_node_queued(struct timerqueue_node *node)
{
	return !RB_EMPTY_NODE(&node->node);
}

static inline bool timerqueue_node_expires(struct timerqueue_node *node)
{
	return node->expires;
}

static inline void timerqueue_init_head(struct timerqueue_head *head)
{
	head->rb_root = RB_ROOT_CACHED;
}
#endif /* _LINUX_TIMERQUEUE_H */