input_engine: std::move InputIdentifier in SetCallback()

Allows avoiding std::function allocations.
4 years ago · e0e9f98fc6
1 changed files with 1 additions and 1 deletions
--- a/src/input_common/input_engine.cpp
+++ b/src/input_common/input_engine.cpp
@ -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++;
 }