*/
struct mpqueue_head {
struct queue_entry head; /* header for queue */
+#if defined(__i386__) || defined(__x86_64__)
lck_mtx_t lock_data;
lck_mtx_ext_t lock_data_ext;
+#else
+ lck_spin_t lock_data;
+#endif
};
typedef struct mpqueue_head mpqueue_head_t;