+#define THREAD_IDENTIFIER_INFO 4 /* thread id and other information */
+
+struct thread_identifier_info {
+ uint64_t thread_id; /* system-wide unique 64-bit thread id */
+ uint64_t thread_handle; /* handle to be used by libproc */
+ uint64_t dispatch_qaddr; /* libdispatch queue address */
+};
+
+typedef struct thread_identifier_info thread_identifier_info_data_t;
+typedef struct thread_identifier_info *thread_identifier_info_t;
+#define THREAD_IDENTIFIER_INFO_COUNT ((mach_msg_type_number_t) \
+ (sizeof(thread_identifier_info_data_t) / sizeof(natural_t)))
+