Some background: It was made a TSB block because TSB source blocks weren't possible until recently, and that's an example use-case. Doesn't solve the spinning issue.
On 01/15/2015 02:26 PM, Sylvain Munaut wrote: > On Thu, Jan 15, 2015 at 2:01 PM, Marcus Müller <marcus.muel...@ettus.com> > wrote: >> Stupid question: >> at least in the old version of the code, the current message was popped >> from the queue using delete_head_nowait(). >> Why don't we just delete_head_blocking() and -- block? > > I think this would prevent the flow graph from stopping because it > would block there indefinitely. > For that to work, the condition variables of each message port would > have to be poked by the runtime on shutdown. > > That's why I proposed a version of delete_head_blocking with a timeout > so we can handover control from time to time. We've always considered blocking in blocks as harmful, but maybe we need to think about this a bit more. What we'd definitely need is a way to interrupt the blocking. However, what would really solve the issue is if we could define requirements for msg->stream blocks, similar to 'ninput items required'. M _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
