How to implement a practical fiber scheduler?

Question

I know the very basics about using coroutines as a base and implementing a toy scheduler. But I assume it\'s oversimplified view about asynchronous schedulers in whole. Ther

Answer 1

You should probably take a look at the setcontext family of functions (http://en.wikipedia.org/wiki/Setcontext). This will mean that within your application you will need to re-implement all functions that may block (read, write, sleep etc) into asynchronous forms and return to the scheduler.

Only the "scheduler fibre" will get to wait on completion events using select(), poll() or epoll(). This means when the scheduler is idle, the process will be sleeping in the select/poll/epoll call, and would not be taking up CPU.