Hi David,
Can you please test using the new binaries ? We have made some fixes to
pipes specifically. Please report your findings.
Thanks,
Jafar
On Wed, Mar 28, 2012 at 2:10 PM, David Gamey <[email protected]> wrote:
> Hi everyone,
>
> I was experimenting with pipe and system based on the example on page 58
> of UB3.
>
> L := pipe() | stop("Couldn't get pipe: ", &errortext)
> system("prog1 &", , L[2])
> system("prog2 &", L[1])
> close(L[1])
> close(L[2])
>
> I tried this (pipetest):
>
> procedure main()
> write(&errout,"Starting ",&progname)
> L := pipe() | runerr(500)
> write(&errout,ximage(L))
> o := open("out2.txt","w") | runerr(500)
> system("mgen.exe &",,L[2]) | runerr(500)
> system("filttest.exe &",L[1],o) | runerr(500)
> every close(!L|o)
> write(&errout,"Finishing ",&progname)
> end
>
> link ximage
>
> mgen generates and outputs a bunch of strings and writes them to &output
> filtettest reads lines from &input, concatenates a tag and writes that to
> &output
>
> At first I thought the second & on filttest might be a problem as close
> should run before mgen & filtest are done with the pipes. But removing it
> makes no difference.
>
> Running "pipetest.exe > out.txt" doesn't work as expected.
>
> - out.txt is full of output from mgen
> - out2.txt is empty
>
> I'm running Windows 7/x64 and Unicon Version 12.0. July 13, 2011 (seems I
> forgot the last upgraded binary)
>
> Running mgen | filttest from command line works as expected.
>
> David
>
>
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