<?php

/**
 * @file
 * session_cache_file.install
 */

/**
 * Implements hook_uninstall().
 */
function session_cache_file_uninstall() {
  require_once 'session_cache_file.module';
  $session_cache_root = session_cache_file_directory();
  if ($session_cache_root) {
    // Delete session cache root and all directories and files below it.
    session_cache_file_rrmdir($session_cache_root);
  }
}

/**
 * Recursively delete a directory and all files in it.
 * 
 * PHP's rmdir() only deletes if the directory is empty.
 *
 * @param string $dir
 */
function session_cache_file_rrmdir($dir) {
 if (is_dir($dir)) {
   $files = scandir($dir);
   foreach ($files as $file) {
     if ($file != '.' && $file != '..') {
       if (is_dir("$dir/$file")) {
         session_cache_file_rrmdir("$dir/$file");
       }
       else {
         unlink("$dir/$file");
       }
     }
   }
   return rmdir($dir);
 }
 return FALSE;
}