Type Alias LaminarSubscriptionCallback 

pub type LaminarSubscriptionCallback = Option<unsafe extern "C" fn(user_data: *mut c_void, batch: *mut LaminarRecordBatch, event_type: i32)>;

Callback function type for subscription data.

Arguments

• user_data - Opaque pointer passed to laminar_subscribe_callback
• batch - Record batch (ownership transferred to callback, must free)
• event_type - One of LAMINAR_EVENT_* constants

Safety

The callback must free the batch with laminar_batch_free.

Aliased Type

pub enum LaminarSubscriptionCallback {
    None,
    Some(unsafe extern "C" fn(*mut c_void, *mut LaminarRecordBatch, i32)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void, *mut LaminarRecordBatch, i32))

Some value of type T.