Re: [Boost-users] Fwd: Boost coroutine/context libraries

Subject: Re: [Boost-users] Fwd: Boost coroutine/context libraries
From: Daniel Hofmann (daniel_at_[hidden])
Date: 2017-01-18 04:36:48

On 01/18/2017 02:20 AM, Gregory Laird wrote:
> --------------- Forwarded message (begin)
> 
> Subject: Boost coroutine/context libraries
> From: Gregory Laird <glaird_at_[hidden]>
> Date: Tue, 17 Jan 2017 17:10:57 -0800
> Newsgroup: gmane.comp.lib.boost.user
> 
> I am trying to write a cooperative task scheduler in c++ and I have 
> discovered the boost context and coroutine libraries.  I have written these 
> sorts of schedulers many times in assembly language so I appreciate the 
> issues in the methodology.  I have written lots of c code but am less versed 
> in c++.
> 
> I have been trying to find some straightforward examples of the libraries 
> use without a lot of extraneous c++ language elements (e.g. binds, lambdas, 
> etc.).  I did find one example 
> 
> http://stackoverflow.com/questions/11716291/boost-context-class
> 
> that is very nice, but it will not compile now with the current boost 
> library.  I get an error saying that boost::context::fcontext_t has been 
> removed from the public api.
> 
> Could someone direct me to some examples that demonstrate the context or 
> coroutine functionality that would be easier to understand.

Maybe this helps - very basic coroutine "scheduler" example:

https://github.com/daniel-j-h/coroutine-scheduler/blob/master/main.cc

I would go with Boost.Coroutine2 / Boost.Coroutine directly instead of
the lower-level context featuers.

> 
> I want to write a scheduler that is very similar to the example listed above 
> where coroutines yeild back to a main caller which then chooses the next 
> coroutine to continue its processing.
> 
> Thanks.
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