projects / userspace-rcu.git / blame
| Commit | Line | Data |
|---|---|---|
| 01477510 FD |
1 | #ifndef _URCU_ASSERT_H |
| 2 | #define _URCU_ASSERT_H | |
| 3 | ||
| 4 | /* | |
| 5 | * urcu/assert.h | |
| 6 | * | |
| 7 | * Userspace RCU assertion facilities. | |
| 8 | * | |
| 9 | * Copyright (c) 2021 Francis Deslauriers <francis.deslauriers@efficios.com> | |
| 10 | * | |
| 11 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 12 | * of this software and associated documentation files (the "Software"), to deal | |
| 13 | * in the Software without restriction, including without limitation the rights | |
| 14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 15 | * copies of the Software, and to permit persons to whom the Software is | |
| 16 | * furnished to do so, subject to the following conditions: | |
| 17 | * | |
| 18 | * The above copyright notice and this permission notice shall be included in | |
| 19 | * all copies or substantial portions of the Software. | |
| 20 | */ | |
| 21 | ||
| 22 | #include <urcu/config.h> | |
| 23 | ||
| 24 | /* | |
| 25 | * Force usage of an expression to prevent unused expression compiler warning. | |
| 26 | */ | |
| 27 | #define _urcu_use_expression(_expr) ((void) sizeof((void) (_expr), 0)) | |
| 28 | ||
| 29 | #ifdef NDEBUG | |
| 30 | /* | |
| 31 | * Vanilla assert() replacement. When NDEBUG is defined, the expression is | |
| 32 | * consumed to prevent unused variable compile warnings. | |
| 33 | */ | |
| 34 | # define urcu_posix_assert(_cond) _urcu_use_expression(_cond) | |
| 35 | #else | |
| 36 | # include <assert.h> | |
| 37 | # define urcu_posix_assert(_cond) assert(_cond) | |
| 38 | #endif | |
| 39 | ||
| 40 | #if defined(DEBUG_RCU) || defined(CONFIG_RCU_DEBUG) | |
| 41 | ||
| 42 | /* | |
| 43 | * Enables debugging/expensive assertions to be used in fast paths and only | |
| 44 | * enabled on demand. When disabled, the expression is consumed to prevent | |
| 45 | * unused variable compile warnings. | |
| 46 | */ | |
| 47 | # define urcu_assert_debug(_cond) urcu_posix_assert(_cond) | |
| 48 | #else | |
| 49 | # define urcu_assert_debug(_cond) _urcu_use_expression(_cond) | |
| 50 | #endif | |
| 51 | ||
| 52 | #endif /* _URCU_ASSERT_H */ |