PHP - Manual: parallel\Runtime::run

2024-11-15

parallel\Runtime::close »

« parallel\Runtime::__construct

parallel\Runtime::run

(0.8.0)

parallel\Runtime::run — Execution

说明

public parallel\Runtime::run(Closure $task): ?Future

Shall schedule task for execution in parallel.

public parallel\Runtime::run(Closure $task, array $argv): ?Future

Shall schedule task for execution in parallel, passing argv at execution time.

参数

task: A Closure with specific characteristics.
argv: An array of arguments with specific characteristics to be passed to task at execution time.

Task Characteristics

Closures scheduled for parallel execution must not:

accept or return by reference
accept or return internal objects (see notes)
execute a limited set of instructions

Instructions prohibited in Closures intended for parallel execution are:

yield
use by-reference
declare class
declare named function

注意:
Nested closures may yield or use by-reference, but must not contain class or named function declarations.

注意:
No instructions are prohibited in the files which the task may include.

Arguments Characteristics

Arguments must not:

contain references
contain resources
contain internal objects (see notes)

注意:
In the case of file stream resources, the resource will be cast to the file descriptor and passed as int where possible, this is unsupported on Windows.

Internal Objects Notes

Internal objects generally use a custom structure which cannot be copied by value safely, PHP currently lacks the mechanics to do this (without serialization) and so only objects that do not use a custom structure may be shared.

Some internal objects do not use a custom structure, for example parallel\Events\Event and so may be shared.

Closures are a special kind of internal object and support being copied by value, and so may be shared.

Channels are central to writing parallel code and support concurrent access and execution by necessity, and so may be shared.

警告

A user class that extends an internal class may use a custom structure as defined by the internal class, in which case they cannot be copied by value safely, and so may not be shared.

返回值

警告

The return parallel\Future must not be ignored when the task contains a return or throw statement.

Exceptions

警告

Shall throw parallel\Runtime\Error\Closed if parallel\Runtime was closed.

警告

Shall throw parallel\Runtime\Error\IllegalFunction if task is a closure created from an internal function.

警告

Shall throw parallel\Runtime\Error\IllegalInstruction if task contains illegal instructions.

警告

Shall throw parallel\Runtime\Error\IllegalParameter if task accepts or argv contains illegal variables.

警告

Shall throw parallel\Runtime\Error\IllegalReturn if task returns illegally.

add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址：https://www.php.net/manual/en/parallel-runtime.run.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL 数据库面试 C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet ADORecordSet对象 adodb手册 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 opcache预加载 Composer的Packagist资源 mysql面试题 [鸟哥]PHP FFI详解 - 一种全新的PHP扩展方式 PHP7添加redis扩展 PHP mkdir()写出来的权限与mode值不符合 adodb连接mysql多个数据库的问题 PHP获取指定函数定义在哪个文件中及行号 composer基本用法利用PHP SOAP实现WEB SERVICE

略微加速

PHP官方手册 - 互联网笔记