1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2018 by Delphix. All rights reserved.
23  */
24 
25 #ifndef	_SPL_PROCFS_LIST_H
26 #define	_SPL_PROCFS_LIST_H
27 
28 #include <sys/kstat.h>
29 #include <sys/mutex.h>
30 
31 
32 /*
33  * procfs list manipulation
34  */
35 
36 struct seq_file { };
37 void seq_printf(struct seq_file *m, const char *fmt, ...);
38 
39 typedef struct procfs_list {
40 	void		*pl_private;
41 	kmutex_t	pl_lock;
42 	list_t		pl_list;
43 	uint64_t	pl_next_id;
44 	size_t		pl_node_offset;
45 } procfs_list_t;
46 
47 typedef struct procfs_list_node {
48 	list_node_t	pln_link;
49 	uint64_t	pln_id;
50 } procfs_list_node_t;
51 
52 void procfs_list_install(const char *module,
53     const char *name,
54     mode_t mode,
55     procfs_list_t *procfs_list,
56     int (*show)(struct seq_file *f, void *p),
57     int (*show_header)(struct seq_file *f),
58     int (*clear)(procfs_list_t *procfs_list),
59     size_t procfs_list_node_off);
60 void procfs_list_uninstall(procfs_list_t *procfs_list);
61 void procfs_list_destroy(procfs_list_t *procfs_list);
62 void procfs_list_add(procfs_list_t *procfs_list, void *p);
63 
64 #endif	/* _SPL_PROCFS_LIST_H */
65