Packet Relay Planning

Question

I am programming a network protocol over UDP using C / C ++ on Linux. The protocol should be reliable, so I'm going to simulate something like TCP retransmission over UDP.

This can be done using pthreads or fork, but I believe this is overkill and consumes a lot of system resources. The best approach is to use a scheduler.

I probably can't use the internal Linux scheduler as I program in user space. Are there standard C / C ++ libraries for this? What about third-party libraries?

Edit: Some people ask why I do this. Why not use TCP instead?

The answer is that I am implementing a tunneling protocol. If someone tunnels TCP through TCP, the efficiency will be significantly reduced. Here is more information. Why TCP over TCP is a bad idea .

Answer 1

Here's an example of how to execute asynchronous coroutines with Boost . Boost manages the overhead of creating a thread to run the coroutine in this case, so you don't need to. If you want the kernel to control your interrupts, you can use an alarm clock and setitimer , but they are very limited in what they can do.

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Answer 2

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Answer 3

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