Need this file...

app/code/community/Hackathon/AsyncIndex/controllers/Adminhtml/AsyncindexController.php

@@ -0,0 +1,93 @@
+<?php
+
+class Hackathon_AsyncIndex_Adminhtml_AsyncindexController extends Mage_Adminhtml_Controller_Action
+{
+
+    /**
+     * has to be there :-(
+     */
+    protected function _isAllowed()
+    {
+        return true;
+    }
+
+    /**
+     * Schedules the (normal) index process in crontab
+     */
+    public function indexAction()
+    {
+        $process = $this->getProcessCodeFromRequestParams();
+
+        $this->tryScheduleIndex($process, true);
+
+        $this->_redirectUrl($this->_getRefererUrl());
+    }
+
+    /**
+     * Schedules the partial index in crontab
+     */
+    public function schedulePartialAction()
+    {
+        $process = $this->getProcessCodeFromRequestParams();
+
+        $this->tryScheduleIndex($process);
+
+        $this->_redirectUrl($this->_getRefererUrl());
+    }
+
+    /**
+     * get the process code/id from the request and return just the string
+     * @return string
+     */
+    protected function getProcessCodeFromRequestParams()
+    {
+        $process   = $this->getRequest()->getParam('process_code');
+        $processId = $this->getRequest()->getParam('process');
+        if ($processId) {
+            $processModel = Mage::getModel('index/process');
+            $processModel->load($processId);
+            $process = $processModel->getIndexerCode();
+        }
+        return $process;
+    }
+
+    /**
+     * Puts the Index in the contab
+     * @param string $indexerCode process code of the indexer
+     * @param bool $fullReindex should we do a full reindex?
+     */
+    protected function tryScheduleIndex( $indexerCode, $fullReindex = false )
+    {
+        /**
+         * @var Mage_Adminhtml_Model_Session $session
+         */
+        $session = Mage::getSingleton('adminhtml/session');
+        $helper  = Mage::helper('core');
+        $message = array(
+            "indexerCode" => $indexerCode,
+            "fullReindex" => $fullReindex,
+        );
+
+        $taskName = $fullReindex ? 'Reindex' : 'partial Index';
+
+        try
+        {
+            /**
+             * @var Mage_Cron_Model_Schedule $schedule
+             */
+            $schedule = Mage::getModel('cron/schedule');
+            $schedule->setJobCode('hackathon_asyncindex_cron');
+            $schedule->setCreatedAt(date('Y-m-d H:i:s'));
+            $schedule->setMessages(json_encode($message));
+            $schedule->setScheduledAt(date('Y-m-d H:i:s'));
+            $schedule->save();
+
+            $session->addSuccess($helper->__($taskName.' successfully scheduled for process ') . $indexerCode);
+        }
+        catch (Exception $e)
+        {
+            $session->addError($helper->__($taskName.' schedule not successful, message: %s', $e->getMessage()));
+        }
+    }
+
+}