Use microsecond precision to log response time

Upstream update, adds x-forwarde-for by default

lib/appenders/file.js

@@ -85,7 +85,9 @@ function configure(config, options) {
 }
 
 function shutdown(cb) {
-  async.each(openFiles, function(file, done) {
+  var filesToClose = openFiles;
+  openFiles = [];
+  async.each(filesToClose, function(file, done) {
     if (!file.write(eol, "utf-8")) {
       file.once('drain', function() {
         file.end(done);

lib/connect-logger.js

@@ -54,7 +54,7 @@ function getLogger(logger4js, options) {
 		if (nolog && nolog.test(req.originalUrl)) return next();
 		if (thislogger.isLevelEnabled(level) || options.level === 'auto') {
 
-			var start = new Date()
+			var start = process.hrtime()
 			, statusCode
 			, writeHead = res.writeHead
 			, url = req.originalUrl;
@@ -81,7 +81,8 @@ function getLogger(logger4js, options) {
 
 			//hook on end request to emit the log entry of the HTTP request.
 			res.on('finish', function() {
-				res.responseTime = new Date() - start;
+                                var end = process.hrtime();
+                                res.responseTime = (end[0] - start[0]) * 1000 + (end[1] - start[1]) / 1000000;
 				//status code response level handling
 				if(res.statusCode && options.level === 'auto'){
 					level = levels.INFO;

lib/log4js.js

@@ -219,6 +219,11 @@ function clearAppenders () {
   }
 }
 
+function clearAndShutdownAppenders(cb) {
+  clearAppenders();
+  shutdownAppenders(cb);
+}
+
 function configureAppenders(appenderList, options) {
   clearAppenders();
   if (appenderList) {
@@ -428,7 +433,10 @@ function shutdown(cb) {
   // First, disable all writing to appenders. This prevents appenders from
   // not being able to be drained because of run-away log writes.
   loggerModule.disableAllLogWrites();
+  shutdownAppenders(cb);
+}
 
+function shutdownAppenders(cb) {
   // Next, get all the shutdown functions for appenders as an array.
   var shutdownFunctions = Object.keys(appenderShutdowns).reduce(
     function(accum, category) {
@@ -454,6 +462,7 @@ module.exports = {
   addAppender: addAppender,
   loadAppender: loadAppender,
   clearAppenders: clearAppenders,
+  clearAndShutdownAppenders: clearAndShutdownAppenders,
   configure: configure,
   shutdown: shutdown,