[riot-devel] UDP datagram sending

Peter Kietzmann peter.kietzmann at haw-hamburg.de
Tue Jun 7 09:45:59 CEST 2016

Hi Mateusz,

can you elaborate on how it "doesn't work"? I mean a small description 
of what's happening / until which point things work as expected / what 
happens next... How do you think the thread number of main is related to 
your problem? This IPC call:

gnrc_netapi_dispatch_send(GNRC_NETTYPE_UDP, GNRC_NETREG_DEMUX_CTX_ALL, ip);

should send a message to the appropriate (UDP-)thread, no matter from 
which thread it has been sent. That's why I assume your problem might be 
something else.

Best regards

Am 06.06.2016 um 12:00 schrieb Mateusz Kubaszek:
> Hi :)
> I am writing an UDP module for sending and receiving datagrams with
> ACKs. It is based on udp and pktdump example. I have a certain problem
> with datagram sending from my custom thread. Using shell module the
> datagrams are prepared as pktsnip and then sent by calling
> "gnrc_netapi_dispatch_send(GNRC_NETTYPE_UDP, GNRC_NETREG_DEMUX_CTX_ALL,
> ip);". The thread number is 2 which indicates the main thread. Up to
> this point everything seems to work fine. When I'm doing the same thing
> using my custom thread it doesn't work. Why is it so?
> Best regards,
> Mateusz Kubaszek
> _______________________________________________
> devel mailing list
> devel at riot-os.org
> https://lists.riot-os.org/mailman/listinfo/devel

Peter Kietzmann

Hamburg University of Applied Sciences
Dept. Informatik, Internet Technologies Group
Berliner Tor 7, 20099 Hamburg, Germany
Fon: +49-40-42875-8426
Web: http://www.haw-hamburg.de/inet

More information about the devel mailing list