| Re: flushing stdout [message #42335] |
Mon, 31 January 2005 18:26 |
Robert Barnett
Messages: 70
Registered: May 2004
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Ben,
My experience is that piping idl to various places is best avoided.
Have you ever used emacs plugin IDLWAVE? This is a quality piece of
software which is 100 times better than the idlde. I sometimes notice
that doesn't give me some idl output immeadiently because something is
buffered somewhere.
I've played with piping the idl prompt over TCP sockets. I wrapped idl
in pythons 'open2' bi-directional pipe and sent it over a TCP/IP socket.
I did a neat trick to allow myself to re-connect to an existing IDL
session a bit like you would with the unix 'screen' command. Guess
what? I get the occasional buffering there too.
If you want immeadiate, unbuffered, RSI supported input/output from IDL
then I recommend printing to a UNIX socket or TCP/IP socket.
Robbie
Benjamin Hornberger wrote:
> Hi all,
>
> did anybody notice that IDL sometimes doesn't seem to flush stdout (the
> output log) correctly? I am sending print commands of which I know that
> they should be appearing in constant time intervals, but actually they
> appear in chunks of three or so. Even "flush, -1" doesn't help.
>
> This is very annoying when diagnosing errors. Any hints or clues?
>
> Thanks,
> Benjamin
--
nrb@
Robbie Barnett
imag
Research Assistant
wsahs
Nuclear Medicine & Ultrasound
nsw
Westmead Hospital
gov
Sydney Australia
au
+61 2 9845 7223
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