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Re: [Discuss-gnuradio] Windows Port Error

From: Martin Dvh
Subject: Re: [Discuss-gnuradio] Windows Port Error
Date: Mon, 09 Jan 2006 02:32:03 +0100
User-agent: Debian Thunderbird 1.0.2 (X11/20051002)

Stephane Fillod wrote:
> Hi Chris,
> On Fri, Jan 06, 2006 at 01:48:49PM -0500, Robert Roberts wrote:
>>I have tried installing your GNURadio for Windows binaries following 
>>the instructions posted on Martins website.
> BTW, Martin, do you have any plan in packaging a GNU Radio 2.6 release
> for Windows on CDROM ? I can help you if need be. Are there any
> other volunteers for this task lurking on the list? Any beta-testers?
I am planning first to make a good installer (or set of installers) for the 
whole package.
I have started on this but never finished due to lack of time.
(am am also trying to make building this installer work from a linux box)

After testing this it would be neat to put it all on a cdrom, maybe even 
include all required packages (python-win32 comes to mind)

Most important things to be done:
Make a good installer and make building the installer work from a script 
(preferably from linux, I have half finished code here)
Enhance the buggy windows-audio-sink (it crackles, synchronisation is bad)
Make a directaudio based windows-audio-sink/source
Make a windows-audio-source (not implemented yet)
Improve the memory mapping (if possible)
Improve the wxgui (It only works ok if the cpu can keep up, if it cannot the 
gui totally hangs and you have to manually lower the refreshrate of
the fft in the code. For the scope the only thing that works for me is very 
quickly click the timebase button to decrease the timebase)

I willing to continue working on all of these but I am allways lacking time.

> What about the Knoppix CDROM and GNU Radio 2.6 ?
>>When I go to run dial_tone.py I get the following error:
> Actually, you should have run the "make check" first, which
> should have caught the problem. Maybe you did already?
>>gr_vmcircbuf_mmap_createfilemapping: non contiguous mmap 01330000 
>>01330000 00010000 01340000
>>gr_vmcircbuf_sysv_shm: sysv shared memory is not available
>>gr_vmcircbuf_mmap_mkstemp: mmap or shm_open is not available
>>gr_vmcircbuf_mmap_tmpfile: mmap or mkstemp is not available
>>gr_vmcircbuf_sysconfig: unable to find a working factory!
> The fact under Windows is the virtual memory circular buffer (vmcircbuf)
> is not as reliable as under Linux and other *nix-like systems.
> The gr_vmcircbuf_mmap_createfilemapping method heuristically
> trys to map a file area twice, hopping both mapping will be contiguous.
> The few retrys may not get through sometimes. It's nasty.
> Can you please try to run several times the test_vmcircbuf.exe program
> and see if it always fails?
>>Any ideas as to what I may have done wrong?   I am going to try to 
>>install it on another machine here in a little while also.
> What version of Windows are you running ? What CPU ? How much memory?
> Cheers,

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