testforge/list/serv.c

   1 /* copyleft (C) GPL3 {{{2
   2  * Filename:    serv.c
   3  *
   4  * Author:      arrow <arrow_zhang@sdc.sercomm.com>
   5  * Created at:  Mon 20 Aug 2007 07:05:37 PM CST
   6  * }}}*/
   7 /*header files  {{{1*/
   8 #include <linux/kernel.h>
   9 #include <linux/module.h>
  10 #include <linux/list.h>
  11 #include <asm/semaphore.h>
  12 #include <linux/timer.h>
  13 #include "common.h"
  14 /*}}}*/
  15
  16 /*declaration           {{{1*/
  17 LIST_HEAD(list);
  18 struct timer_list timer;
  19 /*DECLARE_MUTEX(sem);*/
  20 /*}}}*/
  21
  22 /*functions             {{{1*/
  23 void loop(unsigned long data)
  24 {
  25         struct arrow_t *tp;
  26
  27         timer.expires = jiffies + HZ;
  28         timer.data = ++ data;
  29         sbup("looping data = %ld\n", data);
  30 /*        down(&sem);*/
  31         list_for_each_entry(tp, &list, list) {
  32                 sbup("List name:%s\n", tp->name);
  33                 tp->fun(data);
  34         }
  35 /*        up(&sem);*/
  36         add_timer(&timer);
  37 }
  38
  39 int __init init_serv(void)
  40 {
  41         init_timer(&timer);
  42         timer.expires = jiffies + HZ;
  43         timer.function = loop;
  44         add_timer(&timer);
  45         return 0;
  46 }
  47
  48 void __exit exit_serv(void)
  49 {
  50         del_timer(&timer);
  51 }
  52
  53 int test_register(struct arrow_t *new)
  54 {
  55 /*        down(&sem);*/
  56         list_add(&new->list, &list);
  57 /*        up(&sem);*/
  58         return 0;
  59 }
  60 EXPORT_SYMBOL(test_register);
  61
  62 int test_unregister(struct arrow_t *del)
  63 {
  64 /*        down(&sem);*/
  65         list_del(&del->list);
  66 /*        up(&sem);*/
  67         return 0;
  68 }
  69 EXPORT_SYMBOL(test_unregister);
  70
  71 module_init(init_serv);
  72 module_exit(exit_serv);
  73
  74 /* vim:fdm=marker:ts=8:ft=c:norl:fdl=1:
  75  * }}}*/
  76