简介非线程异步IO在C ++？ [英] Intro to non-threaded async IO for C++?

问题描述

我对UI开发者（美国）和C ++开发人员（他们）组成一个桌面应用程序团队工作。 C ++的开发者有责任让我们的一切，我们在UI显示的数据，所以他们做的所有IO，数据库访问，网络电话等。

I work on a desktop app team composed of "UI developers" (us) and "C++ developers" (them). The C++ devs are responsible for getting us all the data that we display in the UI, so they do all the IO, database access, web calls, etc.

最近我们碰到与IO阻塞UI线程一些严重的性能问题。当然，该解决方案的情况是，使在IO异步。但是，C ++开发者坚持这是唯一可能通过生成一个新的线程，这是因为我们知道非常昂贵的。

Recently we've run into some serious performance problems with IO blocking the UI thread. Of course, the solution to this is to make the IO asynchronous. But the C++ devs insist this is only possible by spawning a new thread, which is as we know very expensive.

我从Node.js的等该异步IO不需要涉及线程知道。我知道，Win32和presumably Mac电脑，确实有一个事件循环。但是，我不知道什么样的解决方案是在C ++中的土地做异步非多线程IO prevalent。 （也许这libuv东西underlies节点？）。

I know from Node.js etc. that async IO doesn't need to involve threads. I know that Win32, and presumably Macs, do have an event loop. But, I have no idea what solutions are prevalent in C++ land for doing async non-threaded IO. (Maybe that libuv thing that underlies node?).

任何人都可以点一些流行的库，或者更好的教程文章，所以我们可以引入这个概念对我们的C ++开发者？奖励积分的跨平台（PC和Mac）。更多的加分，如果有一个异步非线程的数据库解决方案，因为我相信我们使用SQLite的是我们的很多问题的根源。

Can anyone point to some popular libraries, or better yet tutorial articles, so we can introduce this concept to our C++ devs? Bonus points for cross-platform (PC and Mac). More bonus points if there is an async non-threaded database solution, since I believe our use of SQLite is the source of many of our problems.

推荐答案

的升压异步I / O（ASIO）。他们有一个优秀教程和几个的examples 。它是跨平台的。

Boost Asynchronous I/O (asio). They have an excellent tutorial and several examples. It is cross platform.

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