+typedef struct kthread {
+ kt_did_t t_tid;
+ thread_func_t t_func;
+ void * t_arg;
+} kthread_t;
+
+#define tsd_get(key) pthread_getspecific(key)
+#define tsd_set(key, val) pthread_setspecific(key, val)
+#define curthread zk_thread_current()
+#define thread_exit zk_thread_exit
+#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
+ zk_thread_create(stk, stksize, (thread_func_t)func, arg, \
+ len, NULL, state, pri)
+#define thread_join(t) zk_thread_join(t)
+#define newproc(f,a,cid,pri,ctp,pid) (ENOSYS)
+
+extern kthread_t *zk_thread_current(void);
+extern void zk_thread_exit(void);
+extern kthread_t *zk_thread_create(caddr_t stk, size_t stksize,
+ thread_func_t func, void *arg, size_t len,
+ proc_t *pp, int state, pri_t pri);
+extern void zk_thread_join(kt_did_t tid);
+
+#define PS_NONE -1