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Linux ip-172-31-46-210 5.15.0-1033-aws #37~20.04.1-Ubuntu SMP Fri Mar 17 11:39:30 UTC 2023 x86_64
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View File Name :
timerqueue.h
/* 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 */