Type Definition melib::gpgme::bindings::gpgme_register_io_cb_t

type gpgme_register_io_cb_t = Option<unsafe extern "C" fn(data: *mut c_void, fd: c_int, dir: c_int, fnc: Option<unsafe extern "C" fn(data: *mut c_void, fd: c_int) -> c_uint>, fnc_data: *mut c_void, tag: *mut *mut c_void) -> c_uint>;