--- /dev/null
+/*
+ * 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;
+}