@cocalc/server/dist/projects/connection/heartbeat.js

CoCalc server functionality: functions used by either the hub and the next.js server

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const message_1 = require("@cocalc/util/message");
const heartbeat_1 = require("@cocalc/util/heartbeat");
function initHeartbeat(socket) {
    let alive = true;
    const stop = () => (alive = false);
    socket.on("end", stop);
    socket.on("close", stop);
    socket.on("error", stop);
    const sendHeartbeat = () => {
        if (!alive)
            return;
        socket.write_mesg("json", (0, message_1.heartbeat)());
        setTimeout(sendHeartbeat, heartbeat_1.PROJECT_HUB_HEARTBEAT_INTERVAL_S * 1000);
    };
    // start the heart beating!
    sendHeartbeat();
}
exports.default = initHeartbeat;
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