types: Add big-endian 128-bit types and helpers.

[cascardo/ovs.git] / lib / util.h

diff --git a/lib/util.h b/lib/util.h
index 4186d49..340ef65 100644 (file)
--- a/lib/util.h
+++ b/lib/util.h
@@ -563,6 +563,36 @@ ovs_u128_equals(const ovs_u128 *a, const ovs_u128 *b)
     return (a->u64.hi == b->u64.hi) && (a->u64.lo == b->u64.lo);
 }
 
+/* Returns true if 'val' is 0. */
+static inline bool
+ovs_u128_is_zero(const ovs_u128 *val)
+{
+    return !(val->u64.hi || val->u64.lo);
+}
+
+/* Returns true if 'val' is all ones. */
+static inline bool
+ovs_u128_is_ones(const ovs_u128 *val)
+{
+    ovs_u128 ones = OVS_U128_MAX;
+
+    return ovs_u128_equals(val, &ones);
+}
+
+/* Returns non-zero if the parameters have equal value. */
+static inline int
+ovs_be128_equals(const ovs_be128 *a, const ovs_be128 *b)
+{
+    return (a->be64.hi == b->be64.hi) && (a->be64.lo == b->be64.lo);
+}
+
+/* Returns true if 'val' is 0. */
+static inline bool
+ovs_be128_is_zero(const ovs_be128 *val)
+{
+    return !(val->be64.hi || val->be64.lo);
+}
+
 void xsleep(unsigned int seconds);
 
 #ifdef _WIN32