Function rust_future_cancel

pub unsafe fn rust_future_cancel<ReturnType>(handle: RustFutureHandle)

Cancel a Rust future

Any current and future continuations will be immediately called with RustFuturePoll::Ready.

This is needed for languages like Swift, which continuation to wait for the continuation to be called when tasks are cancelled.

Safety

The RustFutureHandle must not previously have been passed to rust_future_free