Re: [Libguestfs] [libnbd PATCH v7 9/9] rust: async: Add an example

So what do I think about the patch series as a whole ... (in particular, the patches I didn't add Reviewed-by tags to). It would be much nicer IMHO if we didn't have to define callback lifetimes in this way, since they were not intended to be classified into async_kind / cblifetime / cbcount, and this might limit our options for new ABIs in future. I see two ways to go here: (1) (Easier for now, problems in future) Rename async_kind, cblifetime and cbcount as rust_async_kind, rust_cblifetime, rust_cbcount, which would in some sense limit the scope of getting these right to the Rust bindings. This defers the pain til later (maybe never, if we never added an ABI which didn't satisfy these constraints). (2) (Harder for now, no problems in future) Use a reference count in the Rust bindings, which is how the other bindings work. It makes the Rust bindings more awkward to use, but does more accurately express the actual intention of the API. Discuss ... Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org