/**
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@file
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util.h
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@brief
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This file provides the definitions, and declares some common APIs for list-algorithm.
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*/
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#ifndef _UTILS_H_
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#define _UTILS_H_
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#include <stddef.h>
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#include <glob.h>
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struct listnode
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{
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struct listnode *next;
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struct listnode *prev;
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};
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#define node_to_item(node, container, member) \
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(container *) (((char*) (node)) - offsetof(container, member))
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#define list_declare(name) \
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struct listnode name = { \
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.next = &name, \
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.prev = &name, \
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}
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#define list_for_each(node, list) \
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for (node = (list)->next; node != (list); node = node->next)
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#define list_for_each_reverse(node, list) \
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for (node = (list)->prev; node != (list); node = node->prev)
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void list_init(struct listnode *list);
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void list_add_tail(struct listnode *list, struct listnode *item);
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void list_add_head(struct listnode *head, struct listnode *item);
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void list_remove(struct listnode *item);
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#define list_empty(list) ((list) == (list)->next)
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#define list_head(list) ((list)->next)
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#define list_tail(list) ((list)->prev)
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int epoll_register(int epoll_fd, int fd, unsigned int events);
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int epoll_deregister(int epoll_fd, int fd);
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const char * get_time(void);
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unsigned long clock_msec(void);
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pid_t getpid_by_pdp(int, const char*);
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#endif
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