Function newAsyncId

lib/internal/async_hooks.js:426–428

()

// counter increment first. Since it's done the same way in
// Environment::new_async_uid()
function newAsyncId() {
  return ++async_id_fields[kAsyncIdCounter];
}

function getOrSetAsyncId(object) {
  if (ObjectPrototypeHasOwnProperty(object, async_id_symbol)) {