如何在两个线程之间共享一个大的高速数据 [英] How share a big high speed data between two thread

问题描述

您好，我是绿手。现在我遇到了一个谜题。我需要收到然后不断发送char [2048]数组。

在我看来，接收和发送一个线程效率低下。所以我创建了两个线程发送和接收。我有多核，所以这两个线程可以并行运行。

现在我的问题是如何在两个线程之间共享char数组。首先，不应使用全局变量。我应该选择什么方式。然后应该使用缓冲区，即页面缓冲区。

你能给我一些建议吗？

解决方案

抱歉，你需要一个全局数据资源。这是避免复制数据的唯一可能性。您必须管理的访问权限，例如使用Mutex。您将找到一个示例这里。

Hello, I'm a green hand. Now I meet a puzzle. I need received and then send a char[2048] array continually.
In my mind put receiving and sending in one thread inefficiency . So I create two threads sending and receiving. I have multicore so these two threads could parallel running.
Now my problem is how can I share the char array between two threads. First of all, the global variable shouldn't used. What's way should I choose. Then did the buffer should be used ie page buffer .
Could you give me some advice?

解决方案

Sorry but you need a global data resource. It is the only possibility to avoid copying data. The access you must manage, for instance with a Mutex. An example you will find here..

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