xref: /titanic_51/usr/src/cmd/fm/fmd/common/fmd_case.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_FMD_CASE_H
28 #define	_FMD_CASE_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <pthread.h>
33 #include <libnvpair.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 #include <fmd_list.h>
40 #include <fmd_api.h>
41 #include <fmd_buf.h>
42 
43 struct fmd_module;			/* see <fmd_module.h> */
44 
45 typedef struct fmd_case_item {
46 	struct fmd_case_item *cit_next;	/* pointer to next element in list */
47 	fmd_event_t *cit_event;		/* pointer to held event */
48 } fmd_case_item_t;
49 
50 typedef struct fmd_case_susp {
51 	struct fmd_case_susp *cis_next;	/* pointer to next element in list */
52 	nvlist_t *cis_nvl;		/* nvpair representing fault event */
53 } fmd_case_susp_t;
54 
55 typedef struct fmd_case_impl {
56 	fmd_list_t ci_list;		/* linked list next/prev pointers */
57 	struct fmd_case_impl *ci_next;	/* next pointer for hash bucket chain */
58 	char *ci_uuid;			/* uuid string for this case */
59 	uint_t ci_uuidlen;		/* length of ci_uuid (not incl. \0) */
60 	struct fmd_module *ci_mod;	/* module that owns this case */
61 	void *ci_data;			/* data from fmd_case_setspecific() */
62 	pthread_mutex_t ci_lock;	/* lock for remainder of contents */
63 	uint_t ci_refs;			/* reference count */
64 	ushort_t ci_state;		/* case state (see below) */
65 	ushort_t ci_flags;		/* case flags (see below) */
66 	fmd_case_item_t *ci_items;	/* list of items in this case */
67 	uint_t ci_nitems;		/* number of ci_items */
68 	fmd_event_t *ci_principal;	/* principal event (if any) */
69 	fmd_case_susp_t *ci_suspects;	/* list of suspects in this case */
70 	uint_t ci_nsuspects;		/* number of ci_suspects */
71 	size_t ci_nvsz;			/* packed suspect nvlist array size */
72 	nvlist_t *ci_event;		/* fma protocol list.suspects event */
73 	fmd_buf_hash_t ci_bufs;		/* hash of bufs associated with case */
74 } fmd_case_impl_t;
75 
76 #define	FMD_CASE_UNSOLVED	0	/* case is not yet solved (waiting) */
77 #define	FMD_CASE_SOLVED		1	/* case is solved (suspects added) */
78 #define	FMD_CASE_CLOSED		2	/* case is closed (reconfig done) */
79 
80 #define	FMD_CF_DIRTY		0x1	/* case is in need of checkpoint */
81 #define	FMD_CF_REPAIR		0x2	/* case closed from external repair */
82 
83 typedef struct fmd_case_hash {
84 	pthread_rwlock_t ch_lock;	/* lock protecting case hash */
85 	fmd_case_impl_t **ch_hash;	/* hash bucket array for cases */
86 	uint_t ch_hashlen;		/* size of hash bucket array */
87 } fmd_case_hash_t;
88 
89 extern fmd_case_hash_t *fmd_case_hash_create(void);
90 extern void fmd_case_hash_destroy(fmd_case_hash_t *);
91 extern void fmd_case_hash_refresh(fmd_case_hash_t *);
92 extern fmd_case_t *fmd_case_hash_lookup(fmd_case_hash_t *, const char *);
93 
94 extern fmd_case_t *fmd_case_create(struct fmd_module *, void *);
95 extern fmd_case_t *fmd_case_recreate(struct fmd_module *, const char *);
96 extern void fmd_case_destroy(fmd_case_t *);
97 extern void fmd_case_hold(fmd_case_t *);
98 extern void fmd_case_rele(fmd_case_t *);
99 
100 extern void fmd_case_insert_principal(fmd_case_t *, fmd_event_t *);
101 extern void fmd_case_insert_event(fmd_case_t *, fmd_event_t *);
102 extern void fmd_case_insert_suspect(fmd_case_t *, nvlist_t *);
103 extern void fmd_case_reset_suspects(fmd_case_t *);
104 
105 extern void fmd_case_transition(fmd_case_t *, uint_t);
106 extern void fmd_case_setdirty(fmd_case_t *);
107 extern void fmd_case_clrdirty(fmd_case_t *);
108 extern void fmd_case_commit(fmd_case_t *);
109 extern void fmd_case_update(fmd_case_t *);
110 
111 extern int fmd_case_repair(fmd_case_t *);
112 extern int fmd_case_contains(fmd_case_t *, fmd_event_t *);
113 
114 #ifdef	__cplusplus
115 }
116 #endif
117 
118 #endif	/* _FMD_CASE_H */
119