1 /*-
2  * Copyright (c) 2005 Andrey Simonenko
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  *   @(#)$Id: ipastat_thresholds.h,v 1.2 2011/01/23 18:42:35 simon Exp $
27  */
28 
29 #ifndef IPASTAT_THRESHOLDS_H
30 #define IPASTAT_THRESHOLDS_H
31 
32 #ifdef WITH_THRESHOLDS
33 
34 #ifndef THRESHOLD_NSIZE
35 # define THRESHOLD_NSIZE 30
36 #endif
37 
38 #ifndef THRESHOLD_NALLOC
39 # define THRESHOLD_NALLOC 20
40 #endif
41 
42 struct rule;
43 struct opt_rule;
44 
45 #define THRESHOLD_FREE_NAME	0x01	/* Free 'name' in struct threshold{} */
46 
47 /*
48  * threshold{} section.
49  */
50 struct threshold {
51 	STAILQ_ENTRY(threshold) link;	/* Link for list of thresholds. */
52 
53 	char		*name;		/* Name of this threshold. */
54 	char		*info;		/* Info for this threshold. */
55 	unsigned int	no;		/* Threshold ordinal number. */
56 
57 	const struct st_list *st_list;	/* { st_list } */
58 
59 	unsigned int	free_mask;	/* THRESHOLD_FREE_xxx bits. */
60 
61 	int		inited;		/* Set if threshold was initialized. */
62 };
63 
64 /*
65  * List of all thresholds in one rule.
66  */
67 STAILQ_HEAD(thresholds_list, threshold);
68 
69 /*
70  * Threshold in query: -q ... -t <name>
71  */
72 struct opt_threshold {
73 	STAILQ_ENTRY(opt_threshold) link; /* For list building. */
74 
75 	const char	*name;		/* -t <name> */
76 	struct threshold *threshold;	/* Corresponding threshold structure. */
77 
78 	const struct opt_st *opt_st;	/* Corresponding -s ... */
79 
80 	int		reged;		/* Set if threshold has state. */
81 	struct ipa_threshold_state state;/* Threshold state. */
82 };
83 
84 /*
85  * Several thresholds in query: -q ... -t <name1> -t <name2> ...
86  */
87 STAILQ_HEAD(opt_thresholds, opt_threshold);
88 
89 extern signed char dynamic_thresholds;
90 
91 extern ipa_mzone *threshold_mzone;
92 
93 extern struct threshold *alloc_threshold(void);
94 
95 extern int	init_thresholds(const struct opt_rule *);
96 extern int	deinit_thresholds(const struct opt_rule *);
97 
98 extern void	free_thresholds(struct thresholds_list *);
99 extern int	copy_thresholds(struct rule *, const struct thresholds_list *);
100 
101 extern int	opt_threshold_add(const char *);
102 extern int	opt_thresholds_parse(const struct opt_rule *);
103 extern void	opt_thresholds_free(const struct opt_thresholds *);
104 
105 extern struct threshold *threshold_by_name(const struct rule *, const char *);
106 
107 #endif /* WITH_THRESHOLDS */
108 
109 extern char	has_opt_thresholds;
110 
111 #endif /* !IPASTAT_THRESHOLDS_H */
112