1#ifndef _RDS_INFO_H
2#define _RDS_INFO_H
3
4struct rds_info_lengths {
5	unsigned int	nr;
6	unsigned int	each;
7};
8
9struct rds_info_iterator;
10
11/*
12 * These functions must fill in the fields of @lens to reflect the size
13 * of the available info source.  If the snapshot fits in @len then it
14 * should be copied using @iter.  The caller will deduce if it was copied
15 * or not by comparing the lengths.
16 */
17typedef void (*rds_info_func)(struct socket *sock, unsigned int len,
18			      struct rds_info_iterator *iter,
19			      struct rds_info_lengths *lens);
20
21void rds_info_register_func(int optname, rds_info_func func);
22void rds_info_deregister_func(int optname, rds_info_func func);
23int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval,
24			int __user *optlen);
25void rds_info_copy(struct rds_info_iterator *iter, void *data,
26		   unsigned long bytes);
27void rds_info_iter_unmap(struct rds_info_iterator *iter);
28
29
30#endif
31