flow like the river

VISUALIZACION/node_modules/deasync/index.js

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+/*!
+ * deasync
+ * https://github.com/abbr/deasync
+ *
+ * Copyright 2014-present Abbr
+ * Released under the MIT license
+ */
+
+var fs = require('fs'),
+	path = require('path'),
+	binding
+
+// Seed random numbers [gh-82] if on Windows. See https://github.com/laverdet/node-fibers/issues/82
+if (process.platform === 'win32') Math.random()
+
+
+// Look for binary for this platform
+var nodeV = 'node-' + /[0-9]+\.[0-9]+/.exec(process.versions.node)[0]
+var nodeVM = 'node-' + /[0-9]+/.exec(process.versions.node)[0]
+var modPath = path.join(__dirname, 'bin', process.platform + '-' + process.arch + '-' + nodeV, 'deasync')
+try {
+	try {
+		fs.statSync(modPath + '.node')
+	} catch (ex) {
+		modPath = path.join(__dirname, 'bin', process.platform + '-' + process.arch + '-' + nodeVM, 'deasync')
+		fs.statSync(modPath + '.node')
+	}
+	binding = require(modPath)
+} catch (ex) {
+	binding = require('bindings')('deasync')
+}
+
+function deasync(fn) {
+	return function () {
+		var done = false
+		var args = Array.prototype.slice.apply(arguments).concat(cb)
+		var err
+		var res
+
+		fn.apply(this, args)
+		module.exports.loopWhile(function () {
+			return !done
+		})
+		if (err)
+			throw err
+
+		return res
+
+		function cb(e, r) {
+			err = e
+			res = r
+			done = true
+		}
+	}
+}
+
+module.exports = deasync
+
+module.exports.sleep = deasync(function (timeout, done) {
+	setTimeout(done, timeout)
+})
+
+module.exports.runLoopOnce = function () {
+	process._tickCallback()
+	binding.run()
+}
+
+module.exports.loopWhile = function (pred) {
+	while (pred()) {
+		process._tickCallback()
+		if (pred()) binding.run()
+	}
+}