-/*
- * 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 {
-#ifdef UATOMIC_HAS_ATOMIC_BYTE
- unsigned char c;
-#endif
-#ifdef UATOMIC_HAS_ATOMIC_SHORT
- unsigned short s;
-#endif
- 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;
-}