trainingproject/node_modules/timed-out/index.js

A module to teach you how to module.

'use strict';

module.exports = function (req, time) {
	if (req.timeoutTimer) {
		return req;
	}

	var delays = isNaN(time) ? time : {socket: time, connect: time};
	var host = req._headers ? (' to ' + req._headers.host) : '';

	if (delays.connect !== undefined) {
		req.timeoutTimer = setTimeout(function timeoutHandler() {
			req.abort();
			var e = new Error('Connection timed out on request' + host);
			e.code = 'ETIMEDOUT';
			req.emit('error', e);
		}, delays.connect);
	}

	// Clear the connection timeout timer once a socket is assigned to the
	// request and is connected. Abort the request if there is no activity
	// on the socket for more than `time` milliseconds.
	req.on('socket', function assign(socket) {
		socket.on('connect', function connect() {
			clear();

			if (delays.socket !== undefined) {
				socket.setTimeout(delays.socket, function socketTimeoutHandler() {
					req.abort();
					var e = new Error('Socket timed out on request' + host);
					e.code = 'ESOCKETTIMEDOUT';
					req.emit('error', e);
				});
			}
		});
	});

	function clear() {
		if (req.timeoutTimer) {
			clearTimeout(req.timeoutTimer);
			req.timeoutTimer = null;
		}
	}

	return req.on('error', clear);
};