mirror of
https://github.com/moodle/moodle.git
synced 2025-01-19 14:27:22 +01:00
54 lines
2.1 KiB
PHP
54 lines
2.1 KiB
PHP
<?php
|
|
// This file is part of Moodle - http://moodle.org/
|
|
//
|
|
// Moodle is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Moodle is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
/**
|
|
* Simple interface for receiving progress during long-running file
|
|
* operations.
|
|
*
|
|
* In some cases progress can be reported precisely. In other cases,
|
|
* progress is indeterminate which means that the progress function is called
|
|
* periodically but without information on completion.
|
|
*
|
|
* @package core_files
|
|
* @copyright 2013 The Open University
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
interface file_progress {
|
|
/**
|
|
* @var int Constant used for indeterminate progress.
|
|
*/
|
|
const INDETERMINATE = -1;
|
|
|
|
/**
|
|
* Called during a file processing operation that reports progress.
|
|
*
|
|
* This function will be called periodically during the operation, assuming
|
|
* it is successful.
|
|
*
|
|
* If numbers (rather than INDETERMINATE) are provided, then:
|
|
* - The $progress value will either be the same as last call, or increased
|
|
* by some value (not necessarily 1).
|
|
* - The $progress value will be less than or equal to the $max value.
|
|
*
|
|
* There is no guarantee that this function will be called for every value
|
|
* in the range, or that it will be called with $progress == $max.
|
|
*
|
|
* @param int $progress Current progress, or INDETERMINATE if unknown
|
|
* @param int $max Max progress, or INDETERMINATE if unknown
|
|
*/
|
|
public function progress($progress = self::INDETERMINATE, $max = self::INDETERMINATE);
|
|
}
|