Of course there is wrong way to serialize pointer. By object I mean target object on which shared_ptr points.
ср, 24 июн. 2020 г., 21:11 Rafał Dudycz <rafal.dud...@gmail.com>: > Hi, > > Don't you think that sending a pointer to a memory is very error prone? > e.g.: object may be destroyed before the receiver gets a serialized copy of > shared_ptr as ref_count will not consider the fact that there is an > instance of pointer in the ZMQ inproc buffer. > IMO it would be better to send an object identifier which could be used by > a receiver to retrieve data from some data provider. > > -- > Rafal > > > śr., 24 cze 2020 o 19:56 Sergei Nikulov <sergey.niku...@gmail.com> > napisał(a): > >> On Wed, Jun 24, 2020 at 8:11 PM Serguei Khasimkhanov >> <serk...@hotmail.com> wrote: >> > >> > Hello all, >> > >> > I have a publisher thread that has a bunch of shared_ptrs to large >> chunks of data. Occasionally I want to share some of those shared_ptrs with >> subscribers (for read-only.) The problem is that ZeroMQ only allows sending >> binary data, not C++ objects. How can I accomplish this? >> >> You should serialize your object on publisher side -> send -> receive >> -> deserialize on subscriber. >> There is no other way except you doing some interprocess communication. >> Ref. https://www.google.com/search?q=c%2B%2B+serialization >> >> > >> > I was thinking I could allocate a copy of the shared_ptr on the heap, >> then publish a pointer to it, but since I don't know when the subscribers >> are done using that pointer, I don't know when to deallocate it. >> > >> > - Ser >> > _______________________________________________ >> > zeromq-dev mailing list >> > zeromq-dev@lists.zeromq.org >> > https://lists.zeromq.org/mailman/listinfo/zeromq-dev >> >> >> >> -- >> Best Regards, >> Sergei Nikulov >> _______________________________________________ >> zeromq-dev mailing list >> zeromq-dev@lists.zeromq.org >> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >> > _______________________________________________ > zeromq-dev mailing list > zeromq-dev@lists.zeromq.org > https://lists.zeromq.org/mailman/listinfo/zeromq-dev >
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