Clears the page and block caches at most twice per page load.
function _menu_clear_page_cache() {
$cache_cleared =& drupal_static(__FUNCTION__, 0);
// Clear the page and block caches, but at most twice, including at
// the end of the page load when there are multiple links saved or deleted.
if ($cache_cleared == 0) {
cache_invalidate_tags(array(
'content' => TRUE,
));
// Keep track of which menus have expanded items.
_menu_set_expanded_menus();
$cache_cleared = 1;
}
elseif ($cache_cleared == 1) {
drupal_register_shutdown_function('cache_invalidate_tags', array(
'content',
TRUE,
));
// Keep track of which menus have expanded items.
drupal_register_shutdown_function('_menu_set_expanded_menus');
$cache_cleared = 2;
}
}