xref: /illumos-gate/usr/src/cmd/fm/modules/common/eversholt/eval.h (revision 2bbdd445a21f9d61f4a0ca0faf05d5ceb2bd91f3)
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 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  *
25  * eval.h -- public definitions for eval module
26  *
27  */
28 
29 #ifndef	_EFT_EVAL_H
30 #define	_EFT_EVAL_H
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
33 
34 #ifdef	__cplusplus
35 extern "C" {
36 #endif
37 
38 struct evalue {
39 	enum datatype {
40 		UNDEFINED = 0,
41 		UINT64,		/* use for Boolean as well */
42 		STRING,		/* usually pointer from stable() */
43 		NODEPTR		/* (struct node *) */
44 	} t;
45 	/*
46 	 * using v to handle all values eliminates the need for switch()
47 	 * blocks during assignments, comparisons and other operations
48 	 */
49 	unsigned long long v;
50 };
51 
52 int eval_potential(struct node *np, struct lut *ex, struct node *events[],
53     struct node **newc, struct config *croot);
54 int eval_expr(struct node *np, struct lut *ex, struct node *events[],
55 	struct lut **globals, struct config *croot, struct arrow *arrowp,
56 	int try, struct evalue *valuep);
57 
58 #ifdef	__cplusplus
59 }
60 #endif
61 
62 #endif	/* _EFT_EVAL_H */
63