+#endif
+
+#define is_signed(type) (((type) -1) < (type) 1)
+
+/*
+ * Align value to the next multiple of align. Returns val if it already is a
+ * multiple of align. Align must be a power of two.
+ */
+#define ALIGN_TO(value, align) ((value + (align - 1)) & ~(align - 1))
+
+#define member_sizeof(type, field) sizeof(((type *) 0)->field)
+
+#define ASSERT_LOCKED(lock) LTTNG_ASSERT(pthread_mutex_trylock(&lock))
+
+/*
+ * Get an aligned pointer to a value. This is meant
+ * as a helper to pass an aligned pointer to a member in a packed structure
+ * to a function.
+ */
+#define ALIGNED_CONST_PTR(value) (((const typeof(value) []) { value }))