Thank you for your advices Tom, Regards, Jerome
2014-07-06 16:18 GMT+02:00 Tom Rondeau <t...@trondeau.com>: > On Wed, Jul 2, 2014 at 3:33 AM, Jérôme Nokin <jerome.no...@gmail.com> wrote: >> >> Hello again, >> >> My python code is actually inspired from "Packet Encoder" block >> (/path/to/gnuradio/.../grc_gnuradio/blks2/packet.py) were I suffer >> from the same issue. >> I wrote that python script to make it very simple/short and confirm >> the troubles. >> >> I would be honored if someone could get a try on it to confirm whether >> or not it is reproducible. >> I'm wondering if the bug is in GnuRadio or between the chair and the >> screen.. >> >> Thank you very much ! >> Jerome > > > My best guess is that you are flooding the queueing system and it's dropping > on you. Try increasing the depth of the queue. > > Also, message queues aren't well supported, which is why no one is answering > your questions. Probably best to think of another way to handle your problem > (like the new async message passing system: > http://gnuradio.org/doc/doxygen/page_msg_passing.html) > > Tom > > > >> >> 2014-06-29 16:08 GMT+02:00 Jérôme Nokin <jerome.no...@gmail.com>: >> > Hello, >> > >> > >> > I'm using Gnuradio version: v3.7.2.1-62 and am facing a strange issue >> > with message queuing. >> > >> > I wrote a testing "hier" block which holds 2 message blocks (source + >> > sink). >> > >> > --------------- >> > #create blocks >> > msgq_in = gr.msg_queue(2) >> > msgq_out = gr.msg_queue(2) >> > msg_sink = blocks.message_sink(gr.sizeof_char, msgq_in, False) >> > msg_source = blocks.message_source(gr.sizeof_char, msgq_out) >> > >> > #connect >> > self.connect(self, msg_sink) >> > self.connect(msg_source, self) >> > --------------- >> > >> > >> > The hier block run a thread which read messages from the message_sink >> > and send them to message_source. Nothing more. >> > The final flow graph is "File source" -> "Hier block" -> "File Sink" >> > >> > The full python code is here: >> > http://pastebin.com/AfFhEGQ6 >> > >> > The problem: >> > >> > /tmp/source contains "abcdefghijklmnopqrstuvwxz0123456789" + new line: >> > >> > $ hexdump -C /tmp/source >> > 00000000 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 >> > |abcdefghijklmnop| >> > 00000010 71 72 73 74 75 76 77 78 7a 30 31 32 33 34 35 36 >> > |qrstuvwxz0123456| >> > 00000020 37 38 39 0a |789.| >> > >> > When I run the Gnuradio script for a few seconds, I expect to found >> > the following in /tmp/sink: >> > >> > $ head /tmp/sink >> > abcdefghijklmnopqrstuvwxz0123456789 >> > abcdefghijklmnopqrstuvwxz0123456789 >> > abcdefghijklmnopqrstuvwxz0123456789 >> > abcdefghijklmnopqrstuvwxz0123456789 >> > abcdefghijklmnopqrstuvwxz0123456789 >> > [...] >> > >> > However, from time to time, bytes are missing: >> > >> > $ grep -v abcdefghijklmnopqrstuvwxz0123456789 /tmp/sink >> > abcdefghijklmnopqrstuvwxz012qrstuvwxz0123456789 >> > abcdeqrstuvwxz0123456789 >> > abcklmnopqrstuvwxz0123456789 >> > abcdefghijklmnopqrstuvwxz01234stuvwxz0123456789 >> > abcdefghijklmnopqrstuvwx >> > >> > >> > Am I doing something wrong ? >> > >> > Thank you very much for your feedback. >> > >> > Regards, >> > Jerome >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
