114 lines
3.4 KiB
JavaScript
114 lines
3.4 KiB
JavaScript
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'use strict';
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module.exports.create = function (opts) {
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var id = '0';
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function createAndBindServers(message, cb) {
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var msg = message.conf;
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require('../lib/local-server').create(msg.certPaths, msg.localPort, function (err, webserver) {
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if (err) {
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console.error('[ERROR] worker.js');
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console.error(err.stack);
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throw err;
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}
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console.info("#" + id + " Listening on " + msg.protocol + "://" + webserver.address().address + ":" + webserver.address().port, '\n');
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return cb(webserver);
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});
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// TODO conditional if 80 is being served by caddy
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require('../lib/insecure-server').create(msg.externalPort, msg.insecurePort);
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}
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//
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// Worker Mode
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//
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function waitForConfig(message) {
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if ('com.daplie.walnut.init' !== message.type) {
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console.warn('[Worker] 0 got unexpected message:');
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console.warn(message);
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return;
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}
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process.removeListener('message', waitForConfig);
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// NOTE: this callback must return a promise for an express app
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createAndBindServers(message, function (webserver) {
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var PromiseA = require('bluebird');
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return new PromiseA(function (resolve) {
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function initWebServer(srvmsg) {
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if ('com.daplie.walnut.webserver.onrequest' !== srvmsg.type) {
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console.warn('[Worker] 1 got unexpected message:');
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console.warn(srvmsg);
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return;
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}
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process.removeListener('message', initWebServer);
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resolve(require('../lib/worker').create(webserver, srvmsg));
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}
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process.send({ type: 'com.daplie.walnut.webserver.listening' });
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process.on('message', initWebServer);
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}).then(function (app) {
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console.info('[Worker Ready]');
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return app;
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});
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});
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}
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//
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// Standalone Mode
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//
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if (opts) {
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// NOTE: this callback must return a promise for an express app
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createAndBindServers(opts, function (webserver) {
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var PromiseA = require('bluebird');
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return new PromiseA(function (resolve) {
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opts.getConfig(function (srvmsg) {
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resolve(require('../lib/worker').create(webserver, srvmsg));
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});
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}).then(function (app) {
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console.info('[Standalone Ready]');
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return app;
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});
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});
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} else {
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// we are in cluster mode, as opposed to standalone mode
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id = require('cluster').worker.id.toString();
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// We have to wait to get the configuration from the master process
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// before we can start our webserver
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console.info('[Worker #' + id + '] online!');
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process.on('message', waitForConfig);
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}
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//
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// Debugging
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//
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process.on('exit', function (code) {
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// only sync code can run here
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console.info('uptime:', process.uptime());
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console.info(process.memoryUsage());
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console.info('[exit] process.exit() has been called (or master has killed us).');
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console.info(code);
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});
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process.on('beforeExit', function () {
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// async can be scheduled here
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console.info('[beforeExit] Event Loop is empty. Process will end.');
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});
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process.on('unhandledRejection', function (err) {
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// this should always throw
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// (it means somewhere we're not using bluebird by accident)
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console.error('[caught] [unhandledRejection]');
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console.error(Object.keys(err));
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console.error(err);
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console.error(err.stack);
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});
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process.on('rejectionHandled', function (msg) {
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console.error('[rejectionHandled]');
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console.error(msg);
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});
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};
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