-extern void mono_thread_new_init (gsize tid, gpointer stack_start,
- gpointer func);
-extern void mono_thread_create (MonoDomain *domain, gpointer func, gpointer arg);
-extern MonoThread *mono_thread_attach (MonoDomain *domain);
-extern void mono_thread_detach (MonoThread *thread);
-extern void mono_thread_exit (void);