update v 1.0.7.5
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180
vendor/symfony/process/Pipes/WindowsPipes.php
vendored
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180
vendor/symfony/process/Pipes/WindowsPipes.php
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Process\Pipes;
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use Symfony\Component\Process\Process;
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use Symfony\Component\Process\Exception\RuntimeException;
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/**
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* WindowsPipes implementation uses temporary files as handles.
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*
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* @see https://bugs.php.net/bug.php?id=51800
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* @see https://bugs.php.net/bug.php?id=65650
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*
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* @author Romain Neutron <imprec@gmail.com>
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*
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* @internal
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*/
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class WindowsPipes extends AbstractPipes
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{
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/** @var array */
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private $files = array();
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/** @var array */
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private $fileHandles = array();
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/** @var array */
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private $readBytes = array(
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Process::STDOUT => 0,
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Process::STDERR => 0,
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);
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/** @var bool */
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private $disableOutput;
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public function __construct($disableOutput, $input)
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{
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$this->disableOutput = (bool) $disableOutput;
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if (!$this->disableOutput) {
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// Fix for PHP bug #51800: reading from STDOUT pipe hangs forever on Windows if the output is too big.
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// Workaround for this problem is to use temporary files instead of pipes on Windows platform.
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//
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// @see https://bugs.php.net/bug.php?id=51800
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$this->files = array(
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Process::STDOUT => tempnam(sys_get_temp_dir(), 'out_sf_proc'),
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Process::STDERR => tempnam(sys_get_temp_dir(), 'err_sf_proc'),
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);
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foreach ($this->files as $offset => $file) {
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if (false === $file || false === $this->fileHandles[$offset] = @fopen($file, 'rb')) {
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throw new RuntimeException('A temporary file could not be opened to write the process output to, verify that your TEMP environment variable is writable');
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}
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}
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}
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parent::__construct($input);
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}
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public function __destruct()
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{
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$this->close();
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$this->removeFiles();
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}
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/**
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* {@inheritdoc}
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*/
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public function getDescriptors()
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{
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if ($this->disableOutput) {
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$nullstream = fopen('NUL', 'c');
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return array(
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array('pipe', 'r'),
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$nullstream,
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$nullstream,
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);
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}
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// We're not using pipe on Windows platform as it hangs (https://bugs.php.net/bug.php?id=51800)
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// We're not using file handles as it can produce corrupted output https://bugs.php.net/bug.php?id=65650
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// So we redirect output within the commandline and pass the nul device to the process
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return array(
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array('pipe', 'r'),
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array('file', 'NUL', 'w'),
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array('file', 'NUL', 'w'),
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);
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}
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/**
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* {@inheritdoc}
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*/
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public function getFiles()
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{
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return $this->files;
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}
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/**
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* {@inheritdoc}
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*/
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public function readAndWrite($blocking, $close = false)
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{
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$this->unblock();
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$w = $this->write();
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$read = $r = $e = array();
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if ($blocking) {
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if ($w) {
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@stream_select($r, $w, $e, 0, Process::TIMEOUT_PRECISION * 1E6);
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} elseif ($this->fileHandles) {
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usleep(Process::TIMEOUT_PRECISION * 1E6);
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}
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}
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foreach ($this->fileHandles as $type => $fileHandle) {
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$data = stream_get_contents($fileHandle, -1, $this->readBytes[$type]);
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if (isset($data[0])) {
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$this->readBytes[$type] += strlen($data);
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$read[$type] = $data;
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}
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if ($close) {
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fclose($fileHandle);
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unset($this->fileHandles[$type]);
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}
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}
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return $read;
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}
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/**
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* {@inheritdoc}
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*/
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public function areOpen()
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{
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return $this->pipes && $this->fileHandles;
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}
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/**
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* {@inheritdoc}
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*/
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public function close()
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{
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parent::close();
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foreach ($this->fileHandles as $handle) {
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fclose($handle);
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}
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$this->fileHandles = array();
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}
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/**
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* Creates a new WindowsPipes instance.
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*
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* @param Process $process The process
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* @param $input
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*
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* @return WindowsPipes
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*/
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public static function create(Process $process, $input)
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{
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return new static($process->isOutputDisabled(), $input);
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}
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/**
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* Removes temporary files.
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*/
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private function removeFiles()
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{
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foreach ($this->files as $filename) {
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if (file_exists($filename)) {
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@unlink($filename);
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}
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}
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$this->files = array();
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}
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}
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