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