core.read_cache_file.php in Quiz 6.5

File

includes/moodle/lib/smarty/core/core.read_cache_file.php

<?php

/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */

/**
 * read a cache file, determine if it needs to be
 * regenerated or not
 *
 * @param string $tpl_file
 * @param string $cache_id
 * @param string $compile_id
 * @param string $results
 * @return boolean
 */

//  $tpl_file, $cache_id, $compile_id, &$results
function smarty_core_read_cache_file(&$params, &$smarty) {
  static $content_cache = array();
  if ($smarty->force_compile) {

    // force compile enabled, always regenerate
    return false;
  }
  if (isset($content_cache[$params['tpl_file'] . ',' . $params['cache_id'] . ',' . $params['compile_id']])) {
    list($params['results'], $smarty->_cache_info) = $content_cache[$params['tpl_file'] . ',' . $params['cache_id'] . ',' . $params['compile_id']];
    return true;
  }
  if (!empty($smarty->cache_handler_func)) {

    // use cache_handler function
    call_user_func_array($smarty->cache_handler_func, array(
      'read',
      &$smarty,
      &$params['results'],
      $params['tpl_file'],
      $params['cache_id'],
      $params['compile_id'],
      null,
    ));
  }
  else {

    // use local cache file
    $_auto_id = $smarty
      ->_get_auto_id($params['cache_id'], $params['compile_id']);
    $_cache_file = $smarty
      ->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
    $params['results'] = $smarty
      ->_read_file($_cache_file);
  }
  if (empty($params['results'])) {

    // nothing to parse (error?), regenerate cache
    return false;
  }
  $cache_split = explode("\n", $params['results'], 2);
  $cache_header = $cache_split[0];
  $_cache_info = unserialize($cache_header);
  if ($smarty->caching == 2 && isset($_cache_info['expires'])) {

    // caching by expiration time
    if ($_cache_info['expires'] > -1 && time() > $_cache_info['expires']) {

      // cache expired, regenerate
      return false;
    }
  }
  else {

    // caching by lifetime
    if ($smarty->cache_lifetime > -1 && time() - $_cache_info['timestamp'] > $smarty->cache_lifetime) {

      // cache expired, regenerate
      return false;
    }
  }
  if ($smarty->compile_check) {
    $_params = array(
      'get_source' => false,
      'quiet' => true,
    );
    foreach (array_keys($_cache_info['template']) as $_template_dep) {
      $_params['resource_name'] = $_template_dep;
      if (!$smarty
        ->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {

        // template file has changed, regenerate cache
        return false;
      }
    }
    if (isset($_cache_info['config'])) {
      $_params = array(
        'resource_base_path' => $smarty->config_dir,
        'get_source' => false,
        'quiet' => true,
      );
      foreach (array_keys($_cache_info['config']) as $_config_dep) {
        $_params['resource_name'] = $_config_dep;
        if (!$smarty
          ->_fetch_resource_info($_params) || $_cache_info['timestamp'] < $_params['resource_timestamp']) {

          // config file has changed, regenerate cache
          return false;
        }
      }
    }
  }
  foreach ($_cache_info['cache_serials'] as $_include_file_path => $_cache_serial) {
    if (empty($smarty->_cache_serials[$_include_file_path])) {
      $smarty
        ->_include($_include_file_path, true);
    }
    if ($smarty->_cache_serials[$_include_file_path] != $_cache_serial) {

      /* regenerate */
      return false;
    }
  }
  $params['results'] = $cache_split[1];
  $content_cache[$params['tpl_file'] . ',' . $params['cache_id'] . ',' . $params['compile_id']] = array(
    $params['results'],
    $_cache_info,
  );
  $smarty->_cache_info = $_cache_info;
  return true;
}

/* vim: set expandtab: */

Functions

Name	Description
smarty_core_read_cache_file