On Thu, Mar 05, 2009 at 10:35:37PM -0800, Francesco B. wrote: > > Below is a short GNU Radio pipeline. Its purpose is to write an impulse > response to a character device node representing an FPGA (which contains a > 4-coefficient lowpass filter), read the FPGA's output, and store said output > in a file.
FWIW, the comment about os.fork() concerns me. If you are expecting both parent and child to continue running GNU Radio code after os.fork, you have a misunderstanding of our code, and possibly of fork in general. (I'm not certain that this is what you're trying to do, but if it is, it won't work.) There's a bunch of shared state behind the scenes that will end up "copy-on-write" after fork, leaving the no-longer-shared state inconsistent. A standalone call to fork is almost never the answer to any problem. If you're trying to run an external program from within python, consider using os.system or os.popen. > At least, it'd be appreciated if someone could point me to the code for > gr.file_sink() itself. I get lost in the mass of processing blocks that make > use of it when I try to search for it, and can't find the file_sink() block > itself. Using common command line tools will allow you to find the source for any block. E.g., $ find . -print | grep -v \.svn | xargs grep -l file_sink ./gnuradio-core/src/lib/io/gr_file_sink.h ./gnuradio-core/src/lib/io/gr_file_sink_base.cc The etags and/or ctags command are helpful too. $ man ctags Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
