blob: d1427dd97afa63dd2c13f674249da13285f872fb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
<?php
/**
* SPDX-FileCopyrightText: 2018 Robin Appelman <robin@icewind.nl>
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace Icewind\Streams;
/**
* Wrapper that counts the amount of data read and written
*
* The following options should be passed in the context when opening the stream
* [
* 'callback' => [
* 'source' => resource
* 'callback' => function($readCount, $writeCount){}
* ]
* ]
*
* The callback will be called when the stream is closed
*/
class CountWrapper extends Wrapper {
/**
* @var int
*/
protected $readCount = 0;
/**
* @var int
*/
protected $writeCount = 0;
/**
* @var callable
*/
protected $callback;
/**
* Wraps a stream with the provided callbacks
*
* @param resource $source
* @param callable $callback
* @return resource|false
*
* @throws \BadMethodCallException
*/
public static function wrap($source, $callback) {
if (!is_callable($callback)) {
throw new \InvalidArgumentException('Invalid or missing callback');
}
return self::wrapSource($source, [
'source' => $source,
'callback' => $callback
]);
}
protected function open() {
$context = $this->loadContext();
$this->callback = $context['callback'];
return true;
}
public function dir_opendir($path, $options) {
return $this->open();
}
public function stream_open($path, $mode, $options, &$opened_path) {
return $this->open();
}
public function stream_read($count) {
$result = parent::stream_read($count);
$this->readCount += strlen($result);
return $result;
}
public function stream_write($data) {
$result = parent::stream_write($data);
$this->writeCount += strlen($data);
return $result;
}
public function stream_close() {
$result = parent::stream_close();
call_user_func($this->callback, $this->readCount, $this->writeCount);
return $result;
}
}
|
