X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Funit%2Ftest_uatomic.c;fp=tests%2Funit%2Ftest_uatomic.c;h=804ce7bd8a79b1945f9fcd9ea5098d3f34a7a971;hp=0000000000000000000000000000000000000000;hb=f5ab766ee2c8300cb00ca5878b1cb464f960a66d;hpb=a5bae03d59c22e57263b8610b9fed99738303cf0

diff --git a/tests/unit/test_uatomic.c b/tests/unit/test_uatomic.c
new file mode 100644
index 0000000..804ce7b
--- /dev/null
+++ b/tests/unit/test_uatomic.c
@@ -0,0 +1,91 @@
+/*
+ * 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;
+}