One other thing that I've looked at but never used is Adam Dunkels' "protothreads" (http://dunkels.com/adam/pt/) although you'd still need to roll your own channel library. On Thu, Jul 9, 2015 at 10:50 AM, Steve Simon wrote: > The system I am trying to add libtask to has no runtime other than libc. > > Corrently it is an even based system that uses a "min main loop" and > a twisty maze of nested state machines that all look the same. > > Hence my desire to add co-routines + channels (i.e. exactly what libtask > is) > to it. I have no need for the file or network modules but those are easily > removed. > > I don't have the context calls but I do have setjmp/longjmp so that is > what I > am trying to use. > > I will shout if it works out. > > -Steve > >