Type Alias btck_LogCallback 

pub type btck_LogCallback = Option<unsafe extern "C" fn(user_data: *mut c_void, message: *const c_char, message_len: usize)>;

Aliased Type

pub enum btck_LogCallback {
    None,
    Some(unsafe extern "C" fn(*mut c_void, *const i8, usize)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, *const i8, usize))

Some value of type T.