rb_blocking_function_t 534 ext/socket/basicsocket.c rb_blocking_function_t *func; rb_blocking_function_t 457 ext/socket/init.c rb_blocking_function_t *func = connect_blocking; rb_blocking_function_t 1518 internal.h VALUE rb_thread_io_blocking_region(rb_blocking_function_t *func, void *data1, int fd); rb_blocking_function_t 1412 thread.c rb_thread_io_blocking_region(rb_blocking_function_t *func, void *data1, int fd)