xref: /titanic_44/usr/src/cmd/fm/modules/common/eversholt/itree.h (revision 1a7c1b724419d3cb5fa6eea75123c6b2060ba31b)
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  * itree.h -- public definitions for itree module
27  *
28  */
29 
30 #ifndef	_EFT_ITREE_H
31 #define	_EFT_ITREE_H
32 
33 #pragma ident	"%Z%%M%	%I%	%E% SMI"
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 /* the "fault" field in the event struct requires the definition of nvlist_t */
40 #include <sys/fm/protocol.h>
41 
42 /* Numerical representation of propagation N value (A), short for All */
43 #define	N_IS_ALL	-1
44 
45 struct event {
46 	enum nametype t;		/* defined in tree.h */
47 	struct event *suspects;
48 	struct event *psuspects;
49 	struct event *observations;	/* for lists like suspect list */
50 	nvlist_t *nvp;			/* payload nvp for ereports */
51 	int is_suspect;			/* true if on suspect list */
52 	struct node *enode;		/* event node in parse tree */
53 	const struct ipath *ipp;	/* instanced version of event */
54 	struct lut *props;		/* instanced version of nvpairs */
55 	int count;			/* for reports, number seen */
56 	struct bubble {
57 		struct bubble *next;
58 		int gen;		/* generation # */
59 		enum bubbletype {
60 			B_FROM = 4000,
61 			B_TO,
62 			B_INHIBIT
63 		} t;
64 		struct event *myevent;
65 		int nork;
66 		int mark;
67 		struct arrowlist {
68 			struct arrowlist *next;
69 			struct arrow {
70 				struct bubble *head;
71 				struct bubble *tail;
72 				/* prop node in parse tree */
73 				struct node *pnode;
74 				struct constraintlist {
75 					struct constraintlist *next;
76 					/* deferred constraints */
77 					struct node *cnode;
78 				} *constraints;
79 				int causes_tested;
80 				unsigned long long mindelay;
81 				unsigned long long maxdelay;
82 			} *arrowp;
83 		} *arrows;
84 	} *bubbles;
85 	nvlist_t *fault;
86 };
87 
88 /*
89  * struct iterinfo is the stuff we store in the dictionary of iterators
90  * when we assign a value to an iterator.  it not only contains the value
91  * we assigned to the iterator, it contains a node pointer which we use to
92  * determine if we're the one that defined the value when popping [vh]match()
93  * recursion.
94  */
95 struct iterinfo {
96 	int num;
97 	struct node *np;
98 };
99 
100 struct lut *itree_create(struct config *croot);
101 void itree_free(struct lut *itp);
102 struct event *itree_lookup(struct lut *itp,
103     const char *ename, const struct ipath *ipp);
104 
105 struct arrowlist *itree_next_arrow(struct bubble *bubblep,
106     struct arrowlist *last);
107 struct bubble *itree_next_bubble(struct event *eventp, struct bubble *last);
108 struct constraintlist *itree_next_constraint(struct arrow *arrowp,
109     struct constraintlist *last);
110 
111 void itree_pevent_brief(int flags, struct event *eventp);
112 void itree_ptree(int flags, struct lut *itp);
113 
114 const char *itree_bubbletype2str(enum bubbletype t);
115 
116 void itree_fini(void);
117 
118 #ifdef	__cplusplus
119 }
120 #endif
121 
122 #endif	/* _EFT_ITREE_H */
123