aboutsummaryrefslogtreecommitdiffstats
path: root/library/symfony/process/Tests/PipeStdinInStdoutStdErrStreamSelect.php
blob: bbd7ddfeb284e07c07ba195a7969e05268b0c06b (plain) (blame)
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
<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

define('ERR_SELECT_FAILED', 1);
define('ERR_TIMEOUT', 2);
define('ERR_READ_FAILED', 3);
define('ERR_WRITE_FAILED', 4);

$read = array(STDIN);
$write = array(STDOUT, STDERR);

stream_set_blocking(STDIN, 0);
stream_set_blocking(STDOUT, 0);
stream_set_blocking(STDERR, 0);

$out = $err = '';
while ($read || $write) {
    $r = $read;
    $w = $write;
    $e = null;
    $n = stream_select($r, $w, $e, 5);

    if (false === $n) {
        die(ERR_SELECT_FAILED);
    } elseif ($n < 1) {
        die(ERR_TIMEOUT);
    }

    if (in_array(STDOUT, $w) && strlen($out) > 0) {
        $written = fwrite(STDOUT, (binary) $out, 32768);
        if (false === $written) {
            die(ERR_WRITE_FAILED);
        }
        $out = (binary) substr($out, $written);
    }
    if (null === $read && '' === $out) {
        $write = array_diff($write, array(STDOUT));
    }

    if (in_array(STDERR, $w) && strlen($err) > 0) {
        $written = fwrite(STDERR, (binary) $err, 32768);
        if (false === $written) {
            die(ERR_WRITE_FAILED);
        }
        $err = (binary) substr($err, $written);
    }
    if (null === $read && '' === $err) {
        $write = array_diff($write, array(STDERR));
    }

    if ($r) {
        $str = fread(STDIN, 32768);
        if (false !== $str) {
            $out .= $str;
            $err .= $str;
        }
        if (false === $str || feof(STDIN)) {
            $read = null;
            if (!feof(STDIN)) {
                die(ERR_READ_FAILED);
            }
        }
    }
}