INNER CODE UNIT · Rust

get_nodes

lunatic-solutions/lunatic · crates/lunatic-distributed-api/src/lib.rs:79

fn get_nodes<T, E>(mut caller: Caller<T>, nodes_ptr: u32, nodes_len: u32) -> Result<u32>
where
    T: DistributedCtx<E>,
    E: Environment,
{
    let memory = get_memory(&mut caller)?;
    let node_ids = caller
        .data()
        .distributed()
        .map(|d| d.control.node_ids())
        .unwrap_or_else(|_| vec![]);
    let copy_nodes_len = node_ids.len().min(nodes_len as usize);
    memory
        .data_mut(&mut caller)
        .get_mut(
            nodes_ptr as usize..(nodes_ptr as usize + std::mem::size_of::<u64>() * copy_nodes_len),
        )
        .or_trap("lunatic::distributed::get_nodes::memory")?

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