input_engine: std::move InputIdentifier in SetCallback()

Allows avoiding std::function allocations.
This commit is contained in:
Lioncash 2021-12-13 09:23:19 -05:00
parent 985599e485
commit a92dbec962

View File

@ -342,7 +342,7 @@ const std::string& InputEngine::GetEngineName() const {
int InputEngine::SetCallback(InputIdentifier input_identifier) {
std::lock_guard lock{mutex_callback};
callback_list.insert_or_assign(last_callback_key, input_identifier);
callback_list.insert_or_assign(last_callback_key, std::move(input_identifier));
return last_callback_key++;
}