I'm writing a asynchronous Node Addon, but I have been struggling to figure
out if I need to use a HandleScope in the "After" function that calls the
client JavaScript callback. I've seen examples showing with and without new
scopes, but never any explanation why. Here is an example:
void asyncWorkAfter(uv_work_t* req) {
HandleScope scope; // <-- Do you need a new scope?
const int argc = 1;
Local<Value> foo = String::New("foo");
Local<Value> argv[] = { foo };
// assume I got my callback function out of req
callback->Call(Context::GetCurrent()->Global(), argc, argv);
callback.Dispose();
// if i use a new HandleScope, what happens to argv when we go out of scope?
// Do i need to do something like a scope.Close() to copy argv to the parent
scope?}
Do you need/want a HandleScope when you call the callback?
What happens to argv in the example if you do use a new HandleScope?
Thanks for the help!
Cecil
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