From fdcf400f19af26d06d183127d7cce57b24c574cf Mon Sep 17 00:00:00 2001
From: Aaron Piotrowski <aaron@trowski.com>
Date: Fri, 15 Sep 2017 00:17:42 -0500
Subject: [PATCH] Check writable flag rather than for null resource

Also null resource when writing in watcher callback fails. Fixes #20.
---
 lib/ResourceOutputStream.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/ResourceOutputStream.php b/lib/ResourceOutputStream.php
index 113f8cb..b9805d2 100644
--- a/lib/ResourceOutputStream.php
+++ b/lib/ResourceOutputStream.php
@@ -81,6 +81,7 @@ public function __construct($stream, int $chunkSize = null) {
                             return;
                         }
 
+                        $resource = null;
                         $writable = false;
 
                         $message = "Failed to write to socket";
@@ -144,7 +145,7 @@ public function end(string $finalData = ""): Promise {
     }
 
     private function send(string $data, bool $end = false): Promise {
-        if ($this->resource === null) {
+        if (!$this->writable) {
             return new Failure(new StreamException("The stream is not writable"));
         }