Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-30 Thread Hamish Moffatt
On 29/01/14 19:48, Guido Seifert wrote: Can you say what is happening at the TCP level? Are the packets being sent? Do they have the PSH flag set? Does the TV send back ACK packets? To tell you the truth, I don't know. This is normally a bit too low-level for me. More or less I moved

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-29 Thread Thiago Macieira
On terça-feira, 28 de janeiro de 2014 10:01:11, Guido Seifert wrote: After 3 - 10 resubscriptions the socket is dead. It takes data, seems to be in perfect working order, but the Samsung does not react. Same when I send play and stop UPnP commands. Works several times, then I get socket error

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-29 Thread Thiago Macieira
On quarta-feira, 29 de janeiro de 2014 09:48:44, Guido Seifert wrote: Can you say what is happening at the TCP level? Are the packets being sent? Do they have the PSH flag set? Does the TV send back ACK packets? To tell you the truth, I don't know. This is normally a bit too low-level for

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-28 Thread Rutledge Shawn
On 27 Jan 2014, at 4:38 PM, Thiago Macieira wrote: That's why companies are moving away from custom or specialised embedded OS to just running Linux on their hardware. Do we know that Samsung didn't do that? (except that if they had, it would probably work well ;-) Anyway, if you are

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-28 Thread Guido Seifert
Do we know that Samsung didn't do that? (except that if they had, it would probably work well ;-) Actually it is a Linux that is running in Samsung TVs. Maybe it is not the firmware, but the hardware? Anyway, if you are already researching with wireshark, you can find some uPnP

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-27 Thread Thiago Macieira
On segunda-feira, 27 de janeiro de 2014 07:35:05, Guido Seifert wrote: On Window the D series behaves strangely. I send a UPnP command to it and it responds... or not. Totally unreliable. Very often I get a very unhelpful error message: QAbstractSocket::error = -1. I can hammer the socket with

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-27 Thread Guido Seifert
My guess is that the TCP/IP stack on the D series TV is broken and is somehow failing to deal with the packets from the Windows machine. Yes, do you know if there is anything I can do? I don't see many options in QTcpSocket. What could be the difference between a Windows and a Linux

Re: [Interest] Strange socket problem. QTcpSocket. Windows/Linux

2014-01-27 Thread Thiago Macieira
On segunda-feira, 27 de janeiro de 2014 10:24:22, Guido Seifert wrote: My guess is that the TCP/IP stack on the D series TV is broken and is somehow failing to deal with the packets from the Windows machine. Yes, do you know if there is anything I can do? I don't see many options in