Merge pull request request#1168 from seanstrom/support/use-setimmedia…

…te-when-available

create a detach helper and use detach helper in replace of nextTick

lib/helpers.js

@@ -4,6 +4,13 @@ var extend = require('util')._extend
   , jsonSafeStringify = require('json-stringify-safe')
   , crypto = require('crypto')
 
+function deferMethod() {
+  if(typeof setImmediate === 'undefined') {
+    return process.nextTick
+  }
+
+  return setImmediate
+}
 
 function constructObject(initialObject) {
   initialObject = initialObject || {}
@@ -79,3 +86,4 @@ exports.safeStringify         = safeStringify
 exports.md5                   = md5
 exports.isReadStream          = isReadStream
 exports.toBase64              = toBase64
+exports.defer                 = deferMethod()

request.js

@@ -14,6 +14,7 @@ var optional = require('./lib/optional')
   , md5 = helpers.md5
   , isReadStream = helpers.isReadStream
   , toBase64 = helpers.toBase64
+  , defer = helpers.defer
   , bl = require('bl')
   , oauth = optional('oauth-sign')
   , hawk = optional('hawk')
@@ -654,7 +655,7 @@ Request.prototype.init = function (options) {
       // })
     })
 
-    process.nextTick(function () {
+    defer(function () {
       if (self._aborted) {
         return
       }
@@ -761,13 +762,7 @@ Request.prototype.init = function (options) {
     }
 
     function wait_for_socket_response(){
-      var detach
-      if(typeof setImmediate === 'undefined') {
-        detach = process.nextTick
-      } else {
-        detach = setImmediate
-      }
-      detach(function(){
+      defer(function(){
         // counter to prevent infinite blocking waiting for an open socket to be found.
         response_counter++
         var trying = false