pub unsafe extern "C" fn spa_loop_utils_add_io(
object: *mut spa_loop_utils,
fd: c_int,
mask: u32,
close: bool,
func: spa_source_io_func_t,
data: *mut c_void,
) -> *mut spa_source
pub unsafe extern "C" fn spa_loop_utils_add_io(
object: *mut spa_loop_utils,
fd: c_int,
mask: u32,
close: bool,
func: spa_source_io_func_t,
data: *mut c_void,
) -> *mut spa_source