一个守护进程间通信 [英] Interprocess communication with a Daemon

问题描述

我想实现一个Unix守护进程（我们称之为的 myUnixd 的），并希望用户能够与通过命令行此守护程序交互，例如：

I want to implement a Unix daemon (let's call it myUnixd), and want the user to be able to interact with this daemon via the command line, for example:

myUnixd --help # will display help information
myUnixd --show # will show some data (the's deamon should be doing the work)

所以我的问题是：如何与后台程序沟通？我在想的Unix域套接字。谁能告诉我做这件事的正确方法？

So my question is: How can I communicate with the daemon? I was thinking about Unix domain sockets. Can someone tell me the right way to do this?

感谢。

推荐答案

使用 Berkeley套接字的。具体来说，您可以创建一个UNIX域套接字（也称为本地域套接字，这将创造什么看起来像一个文本文件中。写入文本文件文本发送到后台程序，从中读取接收文本从守护程序，你可以有几个函数调用实现这一点。

Use Berkeley sockets. Specifically, you can create a "UNIX domain socket" (otherwise known as a "local domain socket," which will create what looks like a text file. Write to the text file to send text to the daemon, read from it to receive text from the daemon. You can implement this with a few function calls.

如果你想要的东西更先进的，你也可以使用的DBus ，它提供了一个更复杂的界面，但它是更复杂的学习。

If you want something more advanced, you can also use DBus, which offers a more sophisticated interface, but which is more complicated to learn.

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