[urcu.git] / include / urcu / assert.h

#ifndef _URCU_ASSERT_H
#define _URCU_ASSERT_H

/*
 * urcu/assert.h
 *
 * Userspace RCU assertion facilities.
 *
 * Copyright (c) 2021 Francis Deslauriers <francis.deslauriers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 */

#include <urcu/config.h>

/*
 * Force usage of an expression to prevent unused expression compiler warning.
 */
#define _urcu_use_expression(_expr) ((void) sizeof((void) (_expr), 0))

#ifdef NDEBUG
/*
 * Vanilla assert() replacement. When NDEBUG is defined, the expression is
 * consumed to prevent unused variable compile warnings.
 */
# define urcu_posix_assert(_cond) _urcu_use_expression(_cond)
#else
# include <assert.h>
# define urcu_posix_assert(_cond) assert(_cond)
#endif

#if defined(DEBUG_RCU) || defined(CONFIG_RCU_DEBUG)

/*
 * Enables debugging/expensive assertions to be used in fast paths and only
 * enabled on demand. When disabled, the expression is consumed to prevent
 * unused variable compile warnings.
 */
# define urcu_assert_debug(_cond) urcu_posix_assert(_cond)
#else
# define urcu_assert_debug(_cond) _urcu_use_expression(_cond)
#endif

#endif /* _URCU_ASSERT_H */
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 */