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laminar_subscription_user_data

laminar_db::ffi

Function laminar_subscription_user_data 

Source 
#[unsafe(no_mangle)]
pub unsafe extern "C" fn laminar_subscription_user_data(
    handle: *mut LaminarSubscriptionHandle,
) -> *mut c_void
Expand description

Get the user data pointer from a subscription handle.

§Arguments

  • handle - Subscription handle

§Returns

The user data pointer passed to laminar_subscribe_callback, or NULL.

§Safety

handle must be a valid subscription handle or NULL.