[urcu.git] / tests / test_uatomic.c

/*
 * test_uatomic.c
 *
 * Userspace RCU library - test atomic operations
 *
 * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include <stdio.h>
#include <assert.h>
#include <urcu/uatomic.h>

struct testvals {
	unsigned char c;
	unsigned short s;
	unsigned int i;
	unsigned long l;
};

static struct testvals vals;

#define do_test(ptr)				\
do {						\
	__typeof__(*(ptr)) v;			\
						\
	uatomic_add(ptr, 10);			\
	assert(uatomic_read(ptr) == 10);		\
	uatomic_add(ptr, -11UL);			\
	assert(uatomic_read(ptr) == (__typeof__(*(ptr)))-1UL);	\
	v = uatomic_cmpxchg(ptr, -1UL, 22);		\
	assert(uatomic_read(ptr) == 22);		\
	assert(v == (__typeof__(*(ptr)))-1UL);	\
	v = uatomic_cmpxchg(ptr, 33, 44);		\
	assert(uatomic_read(ptr) == 22);		\
	assert(v == 22);			\
	v = uatomic_xchg(ptr, 55);			\
	assert(uatomic_read(ptr) == 55);		\
	assert(v == 22);			\
	uatomic_set(ptr, 22);			\
	uatomic_inc(ptr);			\
	assert(uatomic_read(ptr) == 23);		\
	uatomic_dec(ptr);			\
	assert(uatomic_read(ptr) == 22);		\
	v = uatomic_add_return(ptr, 74);	\
	assert(v == 96);			\
	assert(uatomic_read(ptr) == 96);	\
	uatomic_or(ptr, 58);			\
	assert(uatomic_read(ptr) == 122);	\
	v = uatomic_sub_return(ptr, 1);		\
	assert(v == 121);			\
	uatomic_sub(ptr, (unsigned int) 2);	\
	assert(uatomic_read(ptr) == 119);	\
	uatomic_inc(ptr);			\
	uatomic_inc(ptr);			\
	assert(uatomic_read(ptr) == 121);	\
	uatomic_and(ptr, 129);			\
	assert(uatomic_read(ptr) == 1);		\
} while (0)

int main(int argc, char **argv)
{
#ifdef UATOMIC_HAS_ATOMIC_BYTE
	do_test(&vals.c);
#endif
#ifdef UATOMIC_HAS_ATOMIC_SHORT
	do_test(&vals.s);
#endif
	do_test(&vals.i);
	do_test(&vals.l);
	printf("Atomic ops test OK\n");

	return 0;
}
Commit	Line	Data
	1	/*
	2	* test_uatomic.c
	3	*
	4	* Userspace RCU library - test atomic operations
	5	*
	6	* Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License along
	19	* with this program; if not, write to the Free Software Foundation, Inc.,
	20	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	21	*/
	22
	23	#include <stdio.h>
	24	#include <assert.h>
	25	#include <urcu/uatomic.h>
	26
	27	struct testvals {
	28	unsigned char c;
	29	unsigned short s;
	30	unsigned int i;
	31	unsigned long l;
	32	};
	33
	34	static struct testvals vals;
	35
	36	#define do_test(ptr) \
	37	do { \
	38	__typeof__(*(ptr)) v; \
	39	\
	40	uatomic_add(ptr, 10); \
	41	assert(uatomic_read(ptr) == 10); \
	42	uatomic_add(ptr, -11UL); \
	43	assert(uatomic_read(ptr) == (__typeof__(*(ptr)))-1UL); \
	44	v = uatomic_cmpxchg(ptr, -1UL, 22); \
	45	assert(uatomic_read(ptr) == 22); \
	46	assert(v == (__typeof__(*(ptr)))-1UL); \
	47	v = uatomic_cmpxchg(ptr, 33, 44); \
	48	assert(uatomic_read(ptr) == 22); \
	49	assert(v == 22); \
	50	v = uatomic_xchg(ptr, 55); \
	51	assert(uatomic_read(ptr) == 55); \
	52	assert(v == 22); \
	53	uatomic_set(ptr, 22); \
	54	uatomic_inc(ptr); \
	55	assert(uatomic_read(ptr) == 23); \
	56	uatomic_dec(ptr); \
	57	assert(uatomic_read(ptr) == 22); \
	58	v = uatomic_add_return(ptr, 74); \
	59	assert(v == 96); \
	60	assert(uatomic_read(ptr) == 96); \
	61	uatomic_or(ptr, 58); \
	62	assert(uatomic_read(ptr) == 122); \
	63	v = uatomic_sub_return(ptr, 1); \
	64	assert(v == 121); \
	65	uatomic_sub(ptr, (unsigned int) 2); \
	66	assert(uatomic_read(ptr) == 119); \
	67	uatomic_inc(ptr); \
	68	uatomic_inc(ptr); \
	69	assert(uatomic_read(ptr) == 121); \
	70	uatomic_and(ptr, 129); \
	71	assert(uatomic_read(ptr) == 1); \
	72	} while (0)
	73
	74	int main(int argc, char **argv)
	75	{
	76	#ifdef UATOMIC_HAS_ATOMIC_BYTE
	77	do_test(&vals.c);
	78	#endif
	79	#ifdef UATOMIC_HAS_ATOMIC_SHORT
	80	do_test(&vals.s);
	81	#endif
	82	do_test(&vals.i);
	83	do_test(&vals.l);
	84	printf("Atomic ops test OK\n");
	85
	86	return 0;
	87	}