INNER CODE UNIT · Rust

free_guest_memory

lunatic-solutions/lunatic · crates/lunatic-common-api/src/lib.rs:40

pub fn free_guest_memory<'a, T: Send>(
    caller: &'a mut Caller<T>,
    ptr: u32,
) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'a>> {
    Box::pin(async move {
        let mut results = [];
        let result = caller
            .get_export(FREEING_FUNCTION_NAME)
            .or_trap(format!("no export named {FREEING_FUNCTION_NAME} found"))?
            .into_func()
            .or_trap("cannot turn export into func")?
            .call_async(caller, &[Val::I32(ptr as i32)], &mut results)
            .await;

        result.or_trap(format!("failed to call {FREEING_FUNCTION_NAME}"))?;
        Ok(())
    })
}

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