rb_unblock_function_t  703 include/ruby/intern.h 				rb_unblock_function_t *ubf, void *data2);
rb_unblock_function_t  704 include/ruby/intern.h #define RUBY_UBF_IO ((rb_unblock_function_t *)-1)
rb_unblock_function_t  705 include/ruby/intern.h #define RUBY_UBF_PROCESS ((rb_unblock_function_t *)-1)
rb_unblock_function_t   96 thread.c       static void set_unblock_function(rb_thread_t *th, rb_unblock_function_t *func, void *arg,
rb_unblock_function_t  101 thread.c       					 rb_unblock_function_t *func, void *arg);
rb_unblock_function_t  225 thread.c       set_unblock_function(rb_thread_t *th, rb_unblock_function_t *func, void *arg,
rb_unblock_function_t  954 thread.c       		      rb_unblock_function_t *func, void *arg)
rb_unblock_function_t 1035 thread.c           rb_unblock_function_t *ubf, void *data2)
rb_unblock_function_t 1057 thread.c           rb_unblock_function_t *ubf, void *data2)
rb_unblock_function_t  324 vm_core.h          rb_unblock_function_t *func;