<?php

/**

 * Smarty plugin

 * @package Smarty

 * @subpackage plugins

 */

/**

 * write out a file to disk

 *

 * @param string $filename

 * @param string $contents

 * @param boolean $create_dirs

 * @return boolean

 */

function smarty_core_write_file($params, &$smarty)

{

    $_dirname = dirname($params['filename']);

    if ($params['create_dirs']) {

        $_params = array('dir' => $_dirname);

        require_once(SMARTY_CORE_DIR . 'core.create_dir_structure.php');

        smarty_core_create_dir_structure($_params, $smarty);

    }

    // write to tmp file, then rename it to avoid file locking race condition

    $_tmp_file = tempnam($_dirname, 'wrt');

    if (!($fd = @fopen($_tmp_file, 'wb'))) {

        $_tmp_file = $_dirname . DIRECTORY_SEPARATOR . uniqid('wrt');

        if (!($fd = @fopen($_tmp_file, 'wb'))) {

            $smarty->trigger_error("problem writing temporary file '$_tmp_file'");

            return false;

        }

    }

    fwrite($fd, $params['contents']);

    fclose($fd);

    if (DIRECTORY_SEPARATOR == '\\' || !@rename($_tmp_file, $params['filename'])) {

        // On platforms and filesystems that cannot overwrite with rename() 

        // delete the file before renaming it -- because windows always suffers

        // this, it is short-circuited to avoid the initial rename() attempt

        @unlink($params['filename']);

        @rename($_tmp_file, $params['filename']);

    }

    @chmod($params['filename'], $smarty->_file_perms);

    return true;

}

/* vim: set expandtab: */

?>