I think, i've misunderstood the spec slightly and also checked examples (e.g. route_guide callback client/server). noting here for reference
to answer my question (rephrased slightly): if one has no holds and one calls StartWrite (outside of a reactor) in an app thread and OnDone() is called by grpc library thread - this is possible... and from what i understand the spec __does not__ say anything about this situation - I mean to me not clear what happens...! The suggested way to avoid it in here is to add a hold before StartCall and remove it when onWriteDone returns not ok. 1 thing, for me was not clear, given the spec says "the above calls may take place concurrently, except that `OnDone` will always take place after all other reactions" what this really means is that if u are __directly reading/writing__ from within a reactor, u do not need holds, u need them only if you are reading/writing from outside of the reactor... the client_callback.h even states that this is __not__ an common use of streaming api... which is a bit strange to me, may be i'm biased... thanks! VK On Saturday, January 8, 2022 at 8:16:44 PM UTC+1 Viktor Khristenko wrote: > Hello, > > I'm using c++ callback api, specified here: > https://github.com/grpc/proposal/pull/180/files > > i have 1 question about client (in particular, but i would guess this is > more general) side, streaming write reactor. > > client streaming write reactor has these (among others) methods: > - StartCall > - OnDone > > Spec says that "No further RPC operations are permitted to be issued > after `OnDone` is invoked". question: What happens when you have > - 1 thread doing StartCall on a reactor, with subsequent StartWrite > - OnDone was called on the same reactor but from a different thread. > > Thanks a lot for any insight! > > VK > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/234df7ac-8c2e-4d68-806c-746bfa9e25c0n%40googlegroups.com.
