On Wed, Aug 24, 2011 at 05:57:51PM +1000, Peter A. G. Crosthwaite wrote: > Add a function co_queue_yield_to_next() which will immediately transfer > control to the coroutine at the head of a co queue. This can be used for > implementing simple work queues where the manager of a co-queue only > needs to restart queued routines one at a time. > > Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwa...@petalogix.com> > --- > qemu-coroutine-lock.c | 13 +++++++++++++ > qemu-coroutine.h | 9 +++++++++ > 2 files changed, 22 insertions(+), 0 deletions(-)
Please share code that uses this function, even if it's not suitable for merging. I'd like to understand what the pattern for using this function is. > diff --git a/qemu-coroutine-lock.c b/qemu-coroutine-lock.c > index a80f437..de2fc21 100644 > --- a/qemu-coroutine-lock.c > +++ b/qemu-coroutine-lock.c > @@ -75,6 +75,19 @@ bool qemu_co_queue_next(CoQueue *queue) > return (next != NULL); > } > > +bool qemu_co_queue_yield_to_next(CoQueue *queue) This function can only be executed in coroutine context (i.e. it cannot be executed outside a coroutine). Therefore please use the coroutine_fn annotation. Perhaps we'll hook the annotation up with a checker in the future to ensure that non-coroutine_fn functions never call coroutine_fn functions statically at build time. In the meantime it serves as documentation. Stefan
