a javascript function like this:

async function getData(){
    //do something and return a string
}

my_module.set_js_func(getData);

my c++ emscripten code like this:

//bind c++ function
EMSCRIPTEN_BINDINGS(my_module) {
function("setJSFunction", &set_js_func);
//...

emscripten::val func2;

void set_js_func(emscripten::val func)
{
    func2 = func;

    //call function directly here or inside a timer loop
    func2();
}

my question is:

i wanna to call getData ( in c++ ) like this:

await getData();

but i only know call it like this in above example code:

func2();

anyone can help me to give some advice ?

i am using emscripten 1.38.31