[zeromq-dev] zeromq with protobuf segmentation fault while parsing in c++

Nayab Rasul rasulnrasul at gmail.com
Mon Jun 30 09:57:48 CEST 2014


Hi,

I am using zeromq with protobuf to send/recieve messages but code was 
crashing on receiver end with Segmentation fault (core dumped) error while 
parsing the received data.

Scan is my message, and it has float repeated fields.

*sender.cpp*

*Scan proto_ls_msg;*
*proto_ls_msg.set_angle_min(0.0);*
*proto_ls_msg.set_angle_max(180.5);*
*std::string ls_msg_str;*
*proto_ls_msg.SerializeToString(&ls_msg_str);*
*zmq::message_t request (ls_msg_str.size());*
*memcpy (request.data(), ls_msg_str.c_str(),ls_msg_str.size());*
*socket.send (request);*

*collector.cpp*

*zmq::message_t recieved;*
*socket.recv (&recieved);*
*std::string ls_msg_str((char*)recieved.data(),recieved.size()); *
*Scan *pb_laser_msg_rcv;*
*pb_laser_msg_rcv->ParseFromString(ls_msg_str); // <--  Segmentation fault 
here*


Is there any example code with zeromq and protobuf using repeated float 
fields.


thanks.
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