import { timing } from "./timing";
const DEFER_EVENT_LISTENER_TIME = 3000;
export const setSocketKeepAlive = (request, { keepAlive, keepAliveMsecs }, deferTimeMs = DEFER_EVENT_LISTENER_TIME) => {
    if (keepAlive !== true) {
        return -1;
    }
    const registerListener = () => {
        if (request.socket) {
            request.socket.setKeepAlive(keepAlive, keepAliveMsecs || 0);
        }
        else {
            request.on("socket", (socket) => {
                socket.setKeepAlive(keepAlive, keepAliveMsecs || 0);
            });
        }
    };
    if (deferTimeMs === 0) {
        registerListener();
        return 0;
    }
    return timing.setTimeout(registerListener, deferTimeMs);
};