1 #ifndef BABELTRACE_ASSERT_PRE_INTERNAL_H
2 #define BABELTRACE_ASSERT_PRE_INTERNAL_H
4 #include <babeltrace/babeltrace-internal.h>
7 * Copyright (c) 2018 EfficiOS Inc. and Linux Foundation
8 * Copyright (c) 2018 Philippe Proulx <pproulx@efficios.com>
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * The macros in this header use macros defined in
31 * <babeltrace/lib-logging-internal.h>. We don't want this header to
32 * automatically include <babeltrace/lib-logging-internal.h> because you
33 * need to manually define BT_LOG_TAG before including
34 * <babeltrace/lib-logging-internal.h> and it is unexpected that you
35 * also need to define it before including this header.
37 * This is a reminder that in order to use
38 * <babeltrace/assert-pre-internal.h>, you also need to use logging
41 #ifndef BABELTRACE_LIB_LOGGING_INTERNAL_H
42 # error Include <babeltrace/lib-logging-internal.h> before this header.
49 * Asserts that the library precondition _cond is satisfied.
51 * If _cond is false, log a fatal statement using _fmt and the optional
52 * arguments using BT_LIB_LOGF(), and abort.
54 * To assert that a postcondition is satisfied or that some internal
55 * object/context/value is in the expected state, use BT_ASSERT().
57 # define BT_ASSERT_PRE(_cond, _fmt, ...) \
60 BT_LOGF_STR("Library precondition not satisfied:"); \
61 BT_LIB_LOGF((_fmt), ##__VA_ARGS__); \
62 BT_LOGF_STR("Aborting..."); \
68 * Marks a function as being only used within a BT_ASSERT_PRE() context.
70 # define BT_ASSERT_PRE_FUNC
73 * Prints the details of an unsatisfied precondition without immediately
74 * aborting. You should use this within a function which checks
75 * preconditions, but which is called from a BT_ASSERT_PRE() context, so
76 * that the function can still return its result for BT_ASSERT_PRE() to
82 * static inline bool check_complex_precond(...)
87 * BT_ASSERT_PRE_MSG("Invalid object: ...", ...);
96 * BT_ASSERT_PRE(check_complex_precond(...),
97 * "Precondition is not satisfied: ...", ...);
99 # define BT_ASSERT_PRE_MSG BT_LIB_LOGF
101 # define BT_ASSERT_PRE(_cond, _fmt, ...) ((void) sizeof((void) (_cond), 0))
102 # define BT_ASSERT_PRE_FUNC BT_UNUSED
103 # define BT_ASSERT_PRE_MSG(_fmt, ...)
104 #endif /* BT_DEV_MODE */
107 * Developer mode: asserts that a given variable is not NULL.
109 #define BT_ASSERT_PRE_NON_NULL(_obj, _obj_name) \
110 BT_ASSERT_PRE((_obj) != NULL, "%s is NULL: ", _obj_name)
113 * Developer mode: asserts that a given object is NOT frozen. This macro
114 * checks the `frozen` field of _obj.
116 #define BT_ASSERT_PRE_HOT(_obj, _obj_name, _fmt, ...) \
117 BT_ASSERT_PRE(!(_obj)->frozen, "%s is frozen" _fmt, _obj_name, \
120 #endif /* BABELTRACE_ASSERT_PRE_INTERNAL_H */
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