On 7/26/19 6:03 AM, Iain Sandoe wrote:
Hello Sebastian,
On 26 Jul 2019, at 10:19, Florian Weimer <fwei...@redhat.com> wrote:
C++ coroutines are stackless. I don't think any new low-level run-time
support will be needed.
correct, C++20 coroutines and threading mechanisms are orthogonal
facilities; one can use (IS C++20) coroutines on top of a threaded system
or in a single-threaded environment.
Two places I see them as being a go-to facility in embedded systems are:
* co-operative multi-tasking UIs on single-threaded platforms.
* async I/O completion by continuations, rather than callbacks.
There are cases where the overhead of threads is too expensive. For
instance hiding (cache-missing) load latencies by doing other work while
waiting -- a context switch at that point is far too expensive.
nathan
--
Nathan Sidwell
