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94 lines
2.4 KiB
94 lines
2.4 KiB
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006~2015 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: yunwuxin <448901948@qq.com>
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// +----------------------------------------------------------------------
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namespace think\process\pipes;
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abstract class Pipes
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{
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/** @var array */
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public $pipes = [];
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/** @var string */
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protected $inputBuffer = '';
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/** @var resource|null */
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protected $input;
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/** @var bool */
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private $blocked = true;
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const CHUNK_SIZE = 16384;
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/**
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* 返回用于 proc_open 描述符的数组
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* @return array
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*/
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abstract public function getDescriptors();
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/**
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* 返回一个数组的索引由其相关的流，以防这些管道使用的临时文件的文件名。
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* @return string[]
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*/
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abstract public function getFiles();
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/**
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* 文件句柄和管道中读取数据。
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* @param bool $blocking 是否使用阻塞调用
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* @param bool $close 是否要关闭管道，如果他们已经到达 EOF。
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* @return string[]
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*/
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abstract public function readAndWrite($blocking, $close = false);
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/**
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* 返回当前状态如果有打开的文件句柄或管道。
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* @return bool
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*/
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abstract public function areOpen();
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/**
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* {@inheritdoc}
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*/
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public function close()
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{
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foreach ($this->pipes as $pipe) {
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fclose($pipe);
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}
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$this->pipes = [];
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}
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/**
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* 检查系统调用已被中断
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* @return bool
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*/
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protected function hasSystemCallBeenInterrupted()
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{
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$lastError = error_get_last();
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return isset($lastError['message']) && false !== stripos($lastError['message'], 'interrupted system call');
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}
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protected function unblock()
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{
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if (!$this->blocked) {
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return;
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}
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foreach ($this->pipes as $pipe) {
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stream_set_blocking($pipe, 0);
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}
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if (null !== $this->input) {
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stream_set_blocking($this->input, 0);
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}
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$this->blocked = false;
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}
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}
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