Hi Bastian, Thanks!
The file ( ofdm_decode_signal.cc) I have downloaded is still written as (Yes--no mylog(temp) now): "mylog(boost::format("encoding: %1% - length: %2% - symbols: %3%") % d_encoding % d_len % d_copy_symbols);" To make it work, I still need change it to "std::string temp = (boost::format("encoding: %1% - length: %2% - symbols: %3%") % d_encoding % d_len % d_copy_symbols).str(); Actually, I don't really understand the difference between these two. What does this change mean? Does the problem relate to log4cpp? On Thu, Aug 13, 2015 at 3:07 PM, Bastian Bloessl <bloe...@ccs-labs.org> wrote: > Hi, > > yes, this is how it is supposed to look. But please read the posts at the > bottom of the thread. Actually, it should work without modifications now. > > Best, > Bastian > > On 08/13/2015 04:03 PM, Tian Alvin wrote: > >> Hi Bastian, >> >> I followed the suggestion on github: >> >> *Use* >> >> "std::string temp = (boost::format("encoding: %1% - length: %2% - >> symbols: %3%") >> % d_encoding % d_len % d_copy_symbols).str(); >> //mylog(temp);" >> >> *to change* : in the ofdm_decode_signal.cc# L197&L198 >> "mylog(boost::format("encoding: %1% - length: %2% - symbols: %3%") >> % d_encoding % d_len % d_copy_symbols);" >> >> Now I can get the below result: >> >> Inline image 1 >> >> Does this mean the flow graph has been run correctly? >> >> Paul----Thank you very much for your suggestion and sharing! >> >> >> >> On Thu, Aug 13, 2015 at 1:59 PM, Bastian Bloessl <bloe...@ccs-labs.org >> <mailto:bloe...@ccs-labs.org>> wrote: >> >> Hi, >> >> I just replied on github >> >> >> https://github.com/bastibl/gr-ieee802-11/issues/18#issuecomment-130651522 >> >> It would be great if you could try what I suggest there. >> >> Best, >> Bastian >> >> On 08/13/2015 02:32 PM, Garver, Paul W wrote: >> >> Make sure logging is disabled on ALL blocks. I haven't seen that >> libstdcxx error before, but I do have the segfaults with the >> logging in >> Ubuntu 15.04 with pybombs install. >> >> Paul Garver >> >> >> On Aug 13, 2015, at 7:33 AM, Tian Alvin <tianye000...@gmail.com >> <mailto:tianye000...@gmail.com> >> <mailto:tianye000...@gmail.com <mailto:tianye000...@gmail.com>>> >> wrote: >> >> Hi Paul, >> >> Thanks very much for your help! I have disabled logging and >> debug in >> OFDM Parse MAC block, but the error is still there. >> >> Did you also see the below error in your case when (gdb) run >> wifi_loopback.py? >> <image.png> >> ImportError: No module named 'libstdcxx' >> >> >> Thanks >> >> >> On Wed, Aug 12, 2015 at 9:07 PM, Paul Garver >> <garv...@gatech.edu <mailto:garv...@gatech.edu> >> <mailto:garv...@gatech.edu <mailto:garv...@gatech.edu>>> >> wrote: >> >> Tian, >> >> Disable logging and debug in the GRC flowgraph. See if >> this >> solves the problem. For reference, see [1]. >> >> >> [1] >> >> https://lists.gnu.org/archive/html/discuss-gnuradio/2015-07/msg00289.html >> >> On 08/12/2015 01:23 PM, >> discuss-gnuradio-requ...@gnu.org >> <mailto:discuss-gnuradio-requ...@gnu.org> >> <mailto:discuss-gnuradio-requ...@gnu.org >> <mailto:discuss-gnuradio-requ...@gnu.org>> wrote: >> >> Send Discuss-gnuradio mailing list submissions to >> discuss-gnuradio@gnu.org >> <mailto:discuss-gnuradio@gnu.org> >> <mailto:discuss-gnuradio@gnu.org >> <mailto:discuss-gnuradio@gnu.org>> >> >> To subscribe or unsubscribe via the World Wide Web, >> visit >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> or, via email, send a message with subject or body >> 'help' to >> discuss-gnuradio-requ...@gnu.org >> <mailto:discuss-gnuradio-requ...@gnu.org> >> <mailto:discuss-gnuradio-requ...@gnu.org >> <mailto:discuss-gnuradio-requ...@gnu.org>> >> >> You can reach the person managing the list at >> discuss-gnuradio-ow...@gnu.org >> <mailto:discuss-gnuradio-ow...@gnu.org> >> <mailto:discuss-gnuradio-ow...@gnu.org >> <mailto:discuss-gnuradio-ow...@gnu.org>> >> >> When replying, please edit your Subject line so it >> is more specific >> than "Re: Contents of Discuss-gnuradio digest..." >> >> >> Today's Topics: >> >> 1. error with running wifi_loopback.grc from >> gr-ieee802-11 >> (Tian Alvin) >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> <mailto:Discuss-gnuradio@gnu.org> >> <mailto:Discuss-gnuradio@gnu.org >> <mailto:Discuss-gnuradio@gnu.org>> >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> >> <mailto:Discuss-gnuradio@gnu.org >> <mailto:Discuss-gnuradio@gnu.org>> >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> >> -- >> Dipl.-Inform. Bastian Bloessl >> Distributed Embedded Systems >> University of Paderborn, Germany >> http://www.ccs-labs.org/~bloessl/ >> >> >> > -- > Dipl.-Inform. Bastian Bloessl > Distributed Embedded Systems > University of Paderborn, Germany > http://www.ccs-labs.org/~bloessl/ >
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