I really like rsc's libtask and have managed to hide it in a few products.
As for your question: What architecture? Any runtime available?
Personally, I've used libtask on ARM/x86 under Linux/OSX... hardly bare
metal though.
The current implementation depends mostly on the ucontext API +
Russ implemented his own setmcontext and getmcontext functions
to work on systems that doesn't properly support ucontext.
So I don't think you really need ucontext support in your libc.
By the way, I maintain an updated version of libtask:
https://github.com/0intro/libtask
I've used it on quite
David, it's good to hear you're keeping libtask updated... I'll check it
out for sure!
On Thu, Jul 9, 2015 at 11:09 AM, David du Colombier 0in...@gmail.com
wrote:
Russ implemented his own setmcontext and getmcontext functions
to work on systems that doesn't properly support ucontext.
So I
Your use is different and simple enough that I would suggest doing this from
scratch in pure C. Or start from an existing setjmp based implementation. It
should really be a couple pages of code at most.
On Jul 9, 2015, at 9:12 AM, st...@quintile.net st...@quintile.net wrote:
co routines
BTW, somewhere I wired in TADNS (http://adns.sourceforge.net/) so
libtask's network lookups didn't block.
Let me know if you have any interest in me cleaning it up for use.
-joe
On Thu, Jul 9, 2015 at 11:09 AM, David du Colombier 0in...@gmail.com
wrote:
Russ implemented his own setmcontext
Sounds like all you want are coroutines (with create, destroy switch-to
calls) and wait queues (with create, destroy, signal wait calls). With these
you can build channels easily. With a bit more work you can even implement
pre-emption but then you need mutexes. Setjmp/longjmp is fine (that
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 st...@quintile.net wrote:
The system I am trying to add libtask to has no
all process-like implementations except if they give up on per-cpu
multiprogramming are setjmp based at heart.
- erik
On Jul 9, 2015 09:31, Bakul Shah ba...@bitblocks.com wrote:
Your use is different and simple enough that I would suggest doing this from
scratch in pure C. Or start from an
Anyone stripped rsc's libtask for use on a bare metal embedded system,
I'am about to do it but if somone already has I could steal it.
-Steve
I looked at proto, they are just state machines pretending to be threads (imho)
- not my style.
libtask for me, I hope I can slice it a little and put the non-bear-metal bits
in seperate files so I can offer the changes back.
co routines plus channels is exactly what I want.
-Steve
On 9
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
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