Type Alias dpiSubscrCallback 

pub type dpiSubscrCallback = Option<unsafe extern "C" fn(context: *mut c_void, message: *mut dpiSubscrMessage)>;

Aliased Type

pub enum dpiSubscrCallback {
    None,
    Some(unsafe extern "C" fn(*mut c_void, *mut dpiSubscrMessage)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, *mut dpiSubscrMessage))

Some value of type T.