Function execute 

pub fn execute<F: Future>(future: F) -> F::Output

A lightweight, blocking executor that drives a Future to completion.

Why this exists:

In a standard Rust project, you would use tokio::run or async_std::main. Since WebIO forbids external dependencies, we use this custom executor. It leverages a “no-op” waker and a yield_now loop to poll futures until they return Poll::Ready.

Performance Note:

This executor is designed for simplicity. It uses a spin-loop with std::thread::yield_now(), which is efficient for I/O-bound web tasks but may cause higher CPU usage than an interrupt-driven epoll/kqueue reactor.