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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am trying to get the “metadata” from ParaView by connecting to the socket. I’m having an issue where I am correctly sending the command to send the data but I’m not receiving the length value or string correctly. Below is my method how
I am currently trying to get the length value:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">// In the main program //<o:p></o:p></p>
<p class="MsoNormal"> command = 2;<o:p></o:p></p>
<p class="MsoNormal"> if(-1 == send(socket, &command, sizeof(command), 0))<o:p></o:p></p>
<p class="MsoNormal"> exit(1);<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> int size;<o:p></o:p></p>
<p class="MsoNormal"> unsigned long long length;<o:p></o:p></p>
<p class="MsoNormal"> if((size = Receive(socket, &length, sizeof(unsigned long long)) <= 0)<o:p></o:p></p>
<p class="MsoNormal"> exit(1);<o:p></o:p></p>
<p class="MsoNormal"> cout << size << endl;<o:p></o:p></p>
<p class="MsoNormal"> cout << length << endl;<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">// Receive function //<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">int Receive( cons int sk, void* data, int len)<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">{<o:p></o:p></p>
<p class="MsoNormal"> char* buffer = reinterpret_cast<char*>(data);<o:p></o:p></p>
<p class="MsoNormal"> int total = 0;<o:p></o:p></p>
<p class="MsoNormal"> do<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> int nRecvd = recv(socket, buffered+total, len-total, 0);<o:p></o:p></p>
<p class="MsoNormal"> if(nRecvd == 0)<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> cout << “No Data Received” << endl;<o:p></o:p></p>
<p class="MsoNormal"> exit(1);<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"> if(nRecvd == -1)<o:p></o:p></p>
<p class="MsoNormal"> {<o:p></o:p></p>
<p class="MsoNormal"> cout << “Error” << endl;<o:p></o:p></p>
<p class="MsoNormal"> exit(1);<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"> total += nRecvd;<o:p></o:p></p>
<p class="MsoNormal"> }while(total < len);<o:p></o:p></p>
<p class="MsoNormal"> return total;<o:p></o:p></p>
<p class="MsoNormal"> }<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Now in the source code of the MobileSocketPlugin, I added a printf to show the value of “length” before it is sent over the socket. When I run my code, it succeeds without an error but the value of my “length” is not equal. For example,
if I connect and run my code immediately after starting up ParaView, it always sends a value of “1733” but I receive a value of “7443178323969” every time. I’m really not sure what I need to change to get this correct. If someone could point me in the right
direction on what I need to be doing to receive the metadata through MobileSocketPlugin, I would greatly appreciate it!
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-family:"Times New Roman","serif"">Travis J. Bueter<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">----------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-family:"Times New Roman","serif"">Missouri University of Science and Technology - Junior<b><o:p></o:p></b></span></i></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">B.S. Computer Engineering/Computer Science<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:tjbxv7@mail.mst.edu"><span style="font-family:"Times New Roman","serif";color:blue">tjbxv7@mail.mst.edu</span></a><span style="font-family:"Times New Roman","serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">(573)-238-5843<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">IT RSS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Treasurer – MS&T Robotics Competition Team<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">----------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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