Merge branch '2.0'

Author: JanHuang

examples/process/queue.php

@@ -11,6 +11,7 @@
 
 $queue = new \FastD\Swoole\Queue('queue', function ($worker) {
     while (true) {
+        echo get_class($worker);
         $recv = $worker->pop();
         echo "From Master: $recv\n";
     }

src/Process.php

@@ -219,7 +219,7 @@ public function fork($length = 1)
         $this->start();
         // new sub process
         for ($i = 0; $i < $length; $i++) {
-            $process = new static($this->name, $this->callback, $this->stdout, $this->pipe);
+            $process = new static($this->name, $this->callback, $this->redirect, $this->pipe);
             if (!empty($this->name)) {
                 $process->name($this->name . ' worker');
             }