sched.h

   1 struct sched {
   2         struct timeval now, timeout;
   3         int max_fileno;
   4         fd_set rfds, wfds;
   5         int select_ret;
   6         struct timeval default_timeout;
   7 };
   8
   9 struct task {
  10         void *private_data;
  11         unsigned flags;
  12         int ret;
  13         void (*pre_select)(struct sched *s, struct task *t);
  14         void (*post_select)(struct sched *s, struct task *t);
  15         void (*error_handler)(struct task *t);
  16         struct list_head pre_select_node;
  17         struct list_head post_select_node;
  18         char status[MAXLINE];
  19 };
  20
  21 enum task_flags {
  22         PRE_ADD_TAIL = 1,
  23         POST_ADD_TAIL = 2,
  24         PRE_EOF_IS_ERROR = 4,
  25         POST_EOF_IS_ERROR = 8,
  26 };
  27
  28 void *register_task(struct task *t);
  29 void unregister_task(struct task *t);
  30 int sched(struct sched *s);
  31 void init_sched(void);