async module with c++ v8 for node js,error associated with the types in the structure

Question

async module with c++ v8 for node js,error associated with the types in the structure

I am writing asynchronous module, but I can not pass an array structure. Please help. That's the error appears. How to avoid it? error C2440: '=' : cannot convert from 'v8::Handle' to 'v8::Array *'

struct Async {
    Handle<v8::Array> result;
}
void wmiWorker(uv_work_t* req) {
    Async* request = (Async*)req->data;
    *(request->result) = getArray(1);
}
Handle<Array> getArray(int x) {

  HandleScope handle_scope;
  Handle<Array> array = Array::New(3);

  if (array.IsEmpty())
    return Handle<Array>();

  array->Set(0, Integer::New(x));
  return handle_scope.Close(array);
}

javascript
c++
node.js
struct
v8

Answer 1

Your line

*(request->result) = getArray(1);

assigns a Handle<Array> to *(Handle<Array>) (which means Array*), which is not valid.

However even with that, there is an important factor that you are not taking into account. Your wmiWorker function is running in a separate thread. NodeJS and V8 only allow a single thread of execution for JS, and what you are attempting to do is create a JS array inside of a separate thread.

Instead you will need to create a vector or something, and generate the V8 array from that inside of the work callback's after_work callback.