I want to write a http proxy server in C in Visual Studio. I don't want it to be in C++. Should I read rfc1945 amd rfc2616? Can you describe very simply what should I do? I didn't read those protocols yet (http 1.0 and http 1.1). Should I transfer GET to the appropriate client and POST to appropriate web server? Is there any high-level library or API can ease programming? What is the best way to implement? Using threads or io-multiplexing or asynchronous (nonblocking)?
Thanks!
it's kind of dumb to ask for help like this when you haven't read the RFC's. should you read them? of course. do that first, then ask questions. for api help, do this 'google c library http'. as for how to implement there are tradeoffs for each approach. threads make it easy to program but aren't as scalable as using asynchronous methods.
Are you sure? Because writing asynchronous doesn't use multi-CPUs, at least, if OS is multi-threaded written, the process should process packets in one thread (other than the programmer mix the solutions). Is it right?Originally Posted by dmh2000
Last edited by nabat1; 01-14-2013 at 12:14 PM.
Use a third-party library to help you if you can. Reading the RFCs may help, but why implement it from scratch?
For GET and POST see Libcurl: cURL and libcurl
Libcurl is easy to call from C and other languages.
For the HTTP Proxy server part, see here: c - HTTP proxy server - Stack Overflow
read this. its a little old but it summarizes the issue. The C10K problem
yes threading will use more cores, but the efficiency of that drops off if you have more threads than cores.
