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[FreeBSD/releng/9.2.git] / contrib / bind9 / lib / isc / include / isc / assertions.h
1 /*
2  * Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
3  * Copyright (C) 1997-2001  Internet Software Consortium.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15  * PERFORMANCE OF THIS SOFTWARE.
16  */
17
18 /*
19  * $Id: assertions.h,v 1.28 2009/09/29 23:48:04 tbox Exp $
20  */
21 /*! \file isc/assertions.h
22  */
23
24 #ifndef ISC_ASSERTIONS_H
25 #define ISC_ASSERTIONS_H 1
26
27 #include <isc/lang.h>
28 #include <isc/platform.h>
29
30 ISC_LANG_BEGINDECLS
31
32 /*% isc assertion type */
33 typedef enum {
34         isc_assertiontype_require,
35         isc_assertiontype_ensure,
36         isc_assertiontype_insist,
37         isc_assertiontype_invariant
38 } isc_assertiontype_t;
39
40 typedef void (*isc_assertioncallback_t)(const char *, int, isc_assertiontype_t,
41                                         const char *);
42
43 /* coverity[+kill] */
44 ISC_PLATFORM_NORETURN_PRE
45 void isc_assertion_failed(const char *, int, isc_assertiontype_t,
46                           const char *) ISC_PLATFORM_NORETURN_POST;
47
48 void
49 isc_assertion_setcallback(isc_assertioncallback_t);
50
51 const char *
52 isc_assertion_typetotext(isc_assertiontype_t type);
53
54 #if defined(ISC_CHECK_ALL) || defined(__COVERITY__)
55 #define ISC_CHECK_REQUIRE               1
56 #define ISC_CHECK_ENSURE                1
57 #define ISC_CHECK_INSIST                1
58 #define ISC_CHECK_INVARIANT             1
59 #endif
60
61 #if defined(ISC_CHECK_NONE) && !defined(__COVERITY__)
62 #define ISC_CHECK_REQUIRE               0
63 #define ISC_CHECK_ENSURE                0
64 #define ISC_CHECK_INSIST                0
65 #define ISC_CHECK_INVARIANT             0
66 #endif
67
68 #ifndef ISC_CHECK_REQUIRE
69 #define ISC_CHECK_REQUIRE               1
70 #endif
71
72 #ifndef ISC_CHECK_ENSURE
73 #define ISC_CHECK_ENSURE                1
74 #endif
75
76 #ifndef ISC_CHECK_INSIST
77 #define ISC_CHECK_INSIST                1
78 #endif
79
80 #ifndef ISC_CHECK_INVARIANT
81 #define ISC_CHECK_INVARIANT             1
82 #endif
83
84 #if ISC_CHECK_REQUIRE != 0
85 #define ISC_REQUIRE(cond) \
86         ((void) ((cond) || \
87                  ((isc_assertion_failed)(__FILE__, __LINE__, \
88                                          isc_assertiontype_require, \
89                                          #cond), 0)))
90 #else
91 #define ISC_REQUIRE(cond)       ((void) 0)
92 #endif /* ISC_CHECK_REQUIRE */
93
94 #if ISC_CHECK_ENSURE != 0
95 #define ISC_ENSURE(cond) \
96         ((void) ((cond) || \
97                  ((isc_assertion_failed)(__FILE__, __LINE__, \
98                                          isc_assertiontype_ensure, \
99                                          #cond), 0)))
100 #else
101 #define ISC_ENSURE(cond)        ((void) 0)
102 #endif /* ISC_CHECK_ENSURE */
103
104 #if ISC_CHECK_INSIST != 0
105 #define ISC_INSIST(cond) \
106         ((void) ((cond) || \
107                  ((isc_assertion_failed)(__FILE__, __LINE__, \
108                                          isc_assertiontype_insist, \
109                                          #cond), 0)))
110 #else
111 #define ISC_INSIST(cond)        ((void) 0)
112 #endif /* ISC_CHECK_INSIST */
113
114 #if ISC_CHECK_INVARIANT != 0
115 #define ISC_INVARIANT(cond) \
116         ((void) ((cond) || \
117                  ((isc_assertion_failed)(__FILE__, __LINE__, \
118                                          isc_assertiontype_invariant, \
119                                          #cond), 0)))
120 #else
121 #define ISC_INVARIANT(cond)     ((void) 0)
122 #endif /* ISC_CHECK_INVARIANT */
123
124 ISC_LANG_ENDDECLS
125
126 #endif /* ISC_ASSERTIONS_H */