Type Alias rrd_output_callback_t 

pub type rrd_output_callback_t = Option<unsafe extern "C" fn(arg1: *const c_void, arg2: usize, arg3: *mut c_void) -> usize>;

Aliased Type

pub enum rrd_output_callback_t {
    None,
    Some(unsafe extern "C" fn(*const c_void, usize, *mut c_void) -> usize),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*const c_void, usize, *mut c_void) -> usize)

Some value of type T.