[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / rds / info.h

#ifndef _RDS_INFO_H
#define _RDS_INFO_H

struct rds_info_lengths {
	unsigned int	nr;
	unsigned int	each;
};

struct rds_info_iterator;

/*
 * These functions must fill in the fields of @lens to reflect the size
 * of the available info source.  If the snapshot fits in @len then it
 * should be copied using @iter.  The caller will deduce if it was copied
 * or not by comparing the lengths.
 */
typedef void (*rds_info_func)(struct socket *sock, unsigned int len,
			      struct rds_info_iterator *iter,
			      struct rds_info_lengths *lens);

void rds_info_register_func(int optname, rds_info_func func);
void rds_info_deregister_func(int optname, rds_info_func func);
int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval,
			int __user *optlen);
void rds_info_copy(struct rds_info_iterator *iter, void *data,
		   unsigned long bytes);
void rds_info_iter_unmap(struct rds_info_iterator *iter);


#endif
Commit	Line	Data
a8c879a7 AG	1	#ifndef _RDS_INFO_H
	2	#define _RDS_INFO_H
	3
	4	struct rds_info_lengths {
	5	unsigned int nr;
	6	unsigned int each;
	7	};
	8
	9	struct 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	*/
	17	typedef void (rds_info_func)(struct socket sock, unsigned int len,
	18	struct rds_info_iterator *iter,
	19	struct rds_info_lengths *lens);
	20
	21	void rds_info_register_func(int optname, rds_info_func func);
	22	void rds_info_deregister_func(int optname, rds_info_func func);
	23	int rds_info_getsockopt(struct socket sock, int optname, char __user optval,
	24	int __user *optlen);
	25	void rds_info_copy(struct rds_info_iterator iter, void data,
	26	unsigned long bytes);
	27	void rds_info_iter_unmap(struct rds_info_iterator *iter);
	28
	29
	30	#endif