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HomeBackend DevelopmentPHP Tutorialswoole-1.8.0 发布,PHP 的异步并行 C 扩展

Swoole-1.8.0 版本已发布,此版本是一个里程碑式新版本,新增了多项新特性、多项核心功能优化以及问题修复、移除了无效的特性。更新内容如下:

客户端

  • 增加原生异步 MySQL 客户端

  • 增加原生异步 Redis 客户端,基于 Redis 官方提供的 hiredis 库

  • 增加原生异步 Http 客户端

  • 增加原生异步 WebSocket 客户端支持

  • 重构底层 swClient,异步 TCP 客户端实现放到 swoole 内核中

  • 增加 swoole_client->reuse 属性,SWOOLE_KEEP 长连接模式下标识是否为复用的连接

服务器端

  • 重构 websocket 服务器代码,底层与 length_check 协议复用相同的处理函数,增强稳定性

  • 增加 Task 进程对 tick/after 定时器的支持,底层基于高精度的 setitimer+ 信号实现

  • 保存构造函数中传入的 host、port 参数到 swoole_server 对象属性

  • 增加多端口多协议的支持(重要更新)

  • 增加 swoole_server->defer 函数用于延时执行一些函数

  • 增加 swoole_server->close 强制切断连接的选项,设置第二个参数会 true 会清空发送队列并立即切断连接

多端口多协议示例:

$serv = new swoole_server("0.0.0.0", 9501);$port2 = $serv->listen('127.0.0.1', 9502, SWOOLE_SOCK_TCP);$port2->set(array(    'open_length_check' => true,    'package_length_type' => 'N',    'package_length_offset' => 0,       //第N个字节是包长度的值    'package_body_offset' => 4,       //第几个字节开始计算长度    'package_max_length' => 2000000,  //协议最大长度));$port2->on('receive',  function (swoole_server $serv, $fd, $from_id, $data)  {    echo "ServerPort2\n";});$serv->on('connect', function ($serv, $fd, $from_id){    echo "[#".posix_getpid()."]\tClient@[$fd:$from_id]: Connect.\n";});$serv->on('receive', function (swoole_server $serv, $fd, $from_id, $data) {    echo "[#".$serv->worker_id."]\tClient[$fd]: $data\n";    if ($serv->send($fd, "hello\n") == false)    {        echo "error\n";    }});$serv->on('close', function ($serv, $fd, $from_id) {    echo "[#".posix_getpid()."]\tClient@[$fd:$from_id]: Close.\n";});$serv->start();

其他

  • 增加swoole_table对key值的存储,foreach遍历table时可以获取到key值

  • 更改swoole_table的key对比模式,从crc32比对改为直接进行字符串对比

  • 更新utlist.h库到1.9.9版本

swoole_table保存Key值会增加内存占用,如table的size为100万,KEY值存储会增加64M内存占用

问题修复

  • 修复启用消息队列后发生double-free问题

  • 重构定时器,修复after、tick定时器偶然出现的core dump的问题

  • 定时器使用最小堆数据结构,插入/删除时间复杂度为log(N)

  • 修复swoole_process::signal在PHP7下发生core dump的问题

  • 修复swoole_async_write在PHP7下发生core dump的问题

移除特性

  • 移除未支持的特性相关历史遗留代码,如heartbeat_ping、dispatch_key_type等

  • 移除swoole_server->addtimer、swoole_server->deltimer、swoole_server->gettimer

  • 移除swoole_timer_add、swoole_timer_del

  • 移除swoole_server的onTimer事件

  • 移除task_worker_max配置及相关特性代码

  • 移除swoole_server->handler方法

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