Sharing a single memory across multiple wasm instances?

[kwonoj]

Peeking back some old thread, I came to find this one https://spectrum.chat/wasmer/runtime/share-memory-region-between-wasm-instances~3abfaa44-8fc8-4401-8590-1ec3bfbede5d?m=MTU3MDA0MzY0MzA4Nw==

And curious if this is still a viable way to do.

For the context, the current logic we have works like this:

// host
let mut serialized = serialize_xxx();

for (wasm_instance in instances) {
   serialized = wasm_instance.run(serialized);
}

deserialize(serialized);

Per each wasm_instance.run() we creates a new store, import_object, and Memory which involves copy whole serialized byte into guest's memory spaces as well as serialization / deserialization. If there's way to create a single memory and all the instances share it I hope we could reduce redundant copy.

Super naive attempt like below

let memory: &Memory = get_memory_ref();

let import_object = imports! {
  "env" => {
     "mem" => memory
  }
}

doesn't seem to work, as well as attempting to make single instance to import_object is a challenging to invoke chain_front() to create chained resolver for chaining wasiEnv like

if is_wasi_module() {
 let wasi_env_import_object = wasi_env.import_object(&module)?;
 let chained_resolver = import_object.chain_front(wasi_env_import_object); //looks like this triggers move?
 Instance::new(&module, &chained_resolver)
} else {
 Instance::new(&module, &import_object);
}

I feel I miss some obivous thing, is there some quick ref I can try to peek somewhere?