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https://github.com/JamesonHuang/OpenWrt_Luci_Lua.git
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94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
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/*
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* =====================================================================================
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*
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* Filename: timer.h
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*
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* Description: 小根堆定时器实现(非多线程安全)
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*
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* Version: 1.0
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* Created: 2013-08-20
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* Revision: none
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* Compiler: gcc
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*
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* Author: xiaoboyu
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* Organization:
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*
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* =====================================================================================
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*/
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#ifndef __TIMER_HEAP_H__
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#define __TIMER_HEAP_H__
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#include <stdint.h>
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#include "util_rbtree.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct timer_heap_t timer_heap_t;
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typedef struct timer_entry
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{
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int32_t id;
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uint8_t in_rbtree; /*是否在红黑树中*/
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util_rbtree_node_t rbnode;
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void *user_data;
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void (*timeout_cb)(timer_heap_t* ht, struct timer_entry *entry);
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}timer_entry;
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void timer_entry_init(timer_entry* entry, int32_t id, void* user_data, \
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void (*timeout_cb)(timer_heap_t* ht, struct timer_entry *entry));
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/*
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* 创建定时器
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* @param limit_size 一次超时的元素个数
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*/
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timer_heap_t* timer_heap_create(int32_t limit_size);
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/*
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* @brief 设置定时器每次最大超时元素的个数 默认是256个
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*/
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void set_timer_limit(timer_heap_t *ht, int32_t limit);
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/*
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* @ref 添加元素到定时器
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* @param expires 超时时间ms
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* @return 成功返回0 失败返回-1
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*/
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int32_t timer_add( timer_heap_t* ht, timer_entry *entry, uint32_t expires );
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/*
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* @ref 从定时器中删除一个元素
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*/
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void timer_del( timer_heap_t* ht, timer_entry* entry );
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/*
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* @brief 更新超时时间(前提是这个entry必须在定时器内, 否则可能导致不可预知的错误)
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*/
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int32_t timer_update(timer_heap_t* ht, timer_entry *entry, uint32_t expires);
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/*
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* @brief 获取最近超时时间
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* @return -1 没有超时
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*/
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int32_t timer_earliest_time(timer_heap_t* ht);
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/*
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* @ref 获取定时器元素的个数
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*/
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int32_t timer_size ( timer_heap_t* ht );
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/*
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* @ref 扫描定时器，执行那些超时的定时器元素
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* @return 返回已经处理的超时定时器元素的个数
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*/
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int32_t timer_run(timer_heap_t* ht);
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void timer_destroy( timer_heap_t* ht);
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#ifdef __cplusplus
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}
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#endif
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#endif
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