在Delphi中进行异步套接字编程的惯用方法是什么？

问题描述

这是我以前对这个问题的研究：

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组件似乎完全同步。另一方面，当ScktComp单元使用WSAAsyncSelect时，它基本上只是同步一个BSD风格的多路复用套接字应用程序。您将被转储在单个事件回调中，就好像您刚刚从循环中的select（）返回，并且必须自己执行所有的状态机导航。

.NET的情况比Socket.BeginRead / Socket.EndRead好一些，其中继承是直接传递给Socket.BeginRead，那就是你选择的地方。一个连续的编码作为一个闭包显然有你需要的所有上下文，等等。

解决方案

对于异步的东西，尝试ICS

What is the normal way people writing network code in Delphi use Windows-style overlapped asynchronous socket I/O?

Here's my prior research into this question:

The Indy components seem entirely synchronous. On the other hand, while ScktComp unit does use WSAAsyncSelect, it basically only asynchronizes a BSD-style multiplexed socket app. You get dumped in a single event callback, as if you had just returned from select() in a loop, and have to do all the state machine navigation yourself.

The .NET situation is considerably nicer, with Socket.BeginRead / Socket.EndRead, where the continuation is passed directly to Socket.BeginRead, and that's where you pick back up. A continuation coded as a closure obviously has all the context you need, and more.

解决方案

For async stuff try ICS

http://www.overbyte.be/frame_index.html?redirTo=/products/ics.html

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