Type Alias WriteFn 

pub type WriteFn = Option<unsafe extern "C" fn(data: *mut c_char, size: c_int, priv_: *mut c_void) -> c_int>;

Aliased Type

pub enum WriteFn {
    None,
    Some(unsafe extern "C" fn(*mut i8, i32, *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut i8, i32, *mut c_void) -> i32)

Some value of type T.