1 #ifndef BABELTRACE_CTF_WRITER_ASSERT_PRE_INTERNAL_H
2 #define BABELTRACE_CTF_WRITER_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 "logging/log.h". We
29 * don't want this header to automatically include "logging/log.h"
30 * because you need to manually define BT_LOG_TAG before including
31 * "logging/log.h" and it is unexpected that you also need to define it
32 * before including this header.
34 * This is a reminder that in order to use "ctf-writer/assert-pre.h",
35 * you also need to use logging explicitly.
38 #ifndef BT_LOG_SUPPORTED
39 # error Include "logging/log.h" before this header.
44 #include "common/macros.h"
48 * Prints the details of an unsatisfied precondition without immediately
49 * aborting. You should use this within a function which checks
50 * preconditions, but which is called from a BT_CTF_ASSERT_PRE()
51 * context, so that the function can still return its result for
52 * BT_CTF_ASSERT_PRE() to evaluate it.
56 * BT_CTF_ASSERT_PRE_FUNC
57 * static inline bool check_complex_precond(...)
62 * BT_CTF_ASSERT_PRE_MSG("Invalid object: ...", ...);
71 * BT_CTF_ASSERT_PRE(check_complex_precond(...),
72 * "Precondition is not satisfied: ...", ...);
74 # define BT_CTF_ASSERT_PRE_MSG(_fmt, ...) \
76 _bt_log_write_d(_BT_LOG_SRCLOC_FUNCTION, __FILE__, \
77 __LINE__, BT_LOG_FATAL, BT_LOG_TAG, (_fmt), \
82 * Asserts that the library precondition _cond is satisfied.
84 * If _cond is false, log a fatal statement using _fmt and the optional
85 * arguments using BT_LOGF(), and abort.
87 * To assert that a postcondition is satisfied or that some internal
88 * object/context/value is in the expected state, use BT_ASSERT_DBG().
90 # define BT_CTF_ASSERT_PRE(_cond, _fmt, ...) \
93 BT_CTF_ASSERT_PRE_MSG("CTF writer precondition not satisfied; error is:"); \
94 BT_CTF_ASSERT_PRE_MSG((_fmt), ##__VA_ARGS__); \
95 BT_CTF_ASSERT_PRE_MSG("Aborting..."); \
101 * Marks a function as being only used within a BT_CTF_ASSERT_PRE() context.
103 # define BT_CTF_ASSERT_PRE_FUNC
106 * Prints the details of an unsatisfied precondition without immediately
107 * aborting. You should use this within a function which checks
108 * preconditions, but which is called from a BT_CTF_ASSERT_PRE() context, so
109 * that the function can still return its result for BT_CTF_ASSERT_PRE() to
114 * BT_CTF_ASSERT_PRE_FUNC
115 * static inline bool check_complex_precond(...)
120 * BT_CTF_ASSERT_PRE_MSG("Invalid object: ...", ...);
129 * BT_CTF_ASSERT_PRE(check_complex_precond(...),
130 * "Precondition is not satisfied: ...", ...);
133 # define BT_CTF_ASSERT_PRE(_cond, _fmt, ...) ((void) sizeof((void) (_cond), 0))
134 # define BT_CTF_ASSERT_PRE_FUNC __attribute__((unused))
135 # define BT_CTF_ASSERT_PRE_MSG(_fmt, ...)
136 #endif /* BT_DEV_MODE */
139 * Developer mode: asserts that a given variable is not NULL.
141 #define BT_CTF_ASSERT_PRE_NON_NULL(_obj, _obj_name) \
142 BT_CTF_ASSERT_PRE((_obj), "%s is NULL: ", _obj_name)
145 * Developer mode: asserts that a given object is NOT frozen. This macro
146 * checks the `frozen` field of _obj.
148 #define BT_CTF_ASSERT_PRE_HOT(_obj, _obj_name, _fmt, ...) \
149 BT_CTF_ASSERT_PRE(!(_obj)->frozen, "%s is frozen" _fmt, _obj_name, \
153 * Developer mode: asserts that a given index is less than a given size.
155 #define BT_CTF_ASSERT_PRE_VALID_INDEX(_index, _length) \
156 BT_CTF_ASSERT_PRE((_index) < (_length), \
157 "Index is out of bounds: index=%" PRIu64 ", " \
158 "count=%" PRIu64, (uint64_t) (_index), (uint64_t) (_length))
160 #endif /* BABELTRACE_CTF_WRITER_ASSERT_PRE_INTERNAL_H */
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