Windows下如何实现FastCGI？

Question

The official FastCGI documentation says that stdin is repurposed as a listening socket when a FastCGI module is started. That's great on Linux, where stdin and sockets are all int s, but I don't think it could it work on Windows, where stdin is a FILE* , and a socket is a HANDLE .

Since Windows servers do support FastCGI, someone has either found a way to make them compatible, or redefined the system for that OS. My Google-fu doesn't seem to be up to locating how though. Where can I find documentation on it?

Answer 1

FastCGI defines only the message exchange protocol, but people behind FastCGI also provide one implementation of that protocol for C++. In this implementation your app must use provided FCGX_Request object to rewire three provided FCGX_Stream objects to the usual ones (cin, cout, cerr). But I suspect that you don't have to rewire the streams, and can use them directly. Check out this FastCGI Hello World to see how it's done.

So, your app does not see HANDLE or FILE* . It sees instead fcgi_streambuf , which inherits from std::streambuf . The way the previously mentioned protocol is implemented is just a detail that you're not supposed to be concerned with. The implementation gets hold of a stream of bytes and provides it to the app, and also the other way around.