Method takeCallback

src/platforms/wasm/js_fetch.cpp.hpp:72–82

Retrieve and remove callback for a request ID (using move semantics)

    // Retrieve and remove callback for a request ID (using move semantics)
    fl::optional<FetchResponseCallback> takeCallback(u32 request_id) {
        fl::unique_lock<fl::mutex> lock(mCallbacksMutex);
        auto it = mPendingCallbacks.find(request_id);
        if (it != mPendingCallbacks.end()) {
            // Move the callback directly from the map entry to avoid double-move
            fl::optional<FetchResponseCallback> result = fl::make_optional(fl::move(it->second));
            mPendingCallbacks.erase(it); // Use efficient iterator-based erase
            return result;
        }
        return fl::nullopt;
    }

private:
    // Thread-safe storage for pending callbacks using request IDs