1*4882a593Smuzhiyun /** 2*4882a593Smuzhiyun @file 3*4882a593Smuzhiyun util.h 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun @brief 6*4882a593Smuzhiyun This file provides the definitions, and declares some common APIs for list-algorithm. 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef _UTILS_H_ 11*4882a593Smuzhiyun #define _UTILS_H_ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <stddef.h> 14*4882a593Smuzhiyun #include <glob.h> 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct listnode 17*4882a593Smuzhiyun { 18*4882a593Smuzhiyun struct listnode *next; 19*4882a593Smuzhiyun struct listnode *prev; 20*4882a593Smuzhiyun }; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #define node_to_item(node, container, member) \ 23*4882a593Smuzhiyun (container *) (((char*) (node)) - offsetof(container, member)) 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #define list_declare(name) \ 26*4882a593Smuzhiyun struct listnode name = { \ 27*4882a593Smuzhiyun .next = &name, \ 28*4882a593Smuzhiyun .prev = &name, \ 29*4882a593Smuzhiyun } 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #define list_for_each(node, list) \ 32*4882a593Smuzhiyun for (node = (list)->next; node != (list); node = node->next) 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #define list_for_each_reverse(node, list) \ 35*4882a593Smuzhiyun for (node = (list)->prev; node != (list); node = node->prev) 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun void list_init(struct listnode *list); 38*4882a593Smuzhiyun void list_add_tail(struct listnode *list, struct listnode *item); 39*4882a593Smuzhiyun void list_add_head(struct listnode *head, struct listnode *item); 40*4882a593Smuzhiyun void list_remove(struct listnode *item); 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #define list_empty(list) ((list) == (list)->next) 43*4882a593Smuzhiyun #define list_head(list) ((list)->next) 44*4882a593Smuzhiyun #define list_tail(list) ((list)->prev) 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun int epoll_register(int epoll_fd, int fd, unsigned int events); 47*4882a593Smuzhiyun int epoll_deregister(int epoll_fd, int fd); 48*4882a593Smuzhiyun const char * get_time(void); 49*4882a593Smuzhiyun unsigned long clock_msec(void); 50*4882a593Smuzhiyun pid_t getpid_by_pdp(int, const char*); 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #endif 53