HeliosAPI/node_modules/tunnel-ssh/examples/keepAlive.js

var tunnel = require('../');
var helper = require('./server');

// Keep alive example
// this example demonstrates the keepAlive option.
// keepAlive will reuse the connections
// note the "tunnelKeepAlive.close();" at the end.
// this step is required to finish execution nicely

var configA = {
    host: '127.0.0.1', username: process.env.USER, dstPort: 8000, localPort: 7000, // Use keepAlive:true to keep the tunnel open.
    keepAlive: true
};

var fakeServer = helper.createServer(configA.dstPort, '127.0.0.1', function () {
    var tunnelKeepAlive = tunnel(configA, function () {
        console.log('Tunnel open');
        helper.createClient(7000, '127.0.0.1', console.log);
        helper.createClient(7000, '127.0.0.1', console.log);
        helper.createClient(7000, '127.0.0.1', console.log).on('close', function () {
            helper.createClient(7000, '127.0.0.1', console.log).on('close', function () {
                helper.createClient(7000, '127.0.0.1', console.log).on('close', function () {
                    setTimeout(function () {
                        // Call tunnel.close() to shutdown the server.
                        console.log('TRYING TO CLOSE');
                        tunnelKeepAlive.close();
                    }, 2000);
                });
            });
        });
    }).on('error', function (e) {
        console.log('error', e);
    });
});
fakeServer.unref();