Found a web link to that technical bulletin:
http://www.ex.ac.uk/its/software/universe/manuals/techbull/740067.pdf
At 09:42 AM 03/23/2004, you wrote:
I do not know UV but in UDT according to my tests we can not write file
descriptor to named pipe.
I would like to know if somebody succeeds.
Lembit Pirn
7+7 Software
Tondi 1
Tallinn 11313
Estonia
+372 65 66 232
[EMAIL PROTECTED]
- Original Message -
From: Glenn Herbert [EMAIL PROTECTED]
To: U2 Users Discussion List [EMAIL PROTECTED]
Sent: Tuesday, March 23, 2004 4:10 PM
Subject: Re: How to open another process's stdin/stdout to a UV file
descriptor?
You could try using named pipes. You might find an ancient tech bulletin
floating around (Ref#74-0067 Using Pipes With BASIC Processes) that
could
prove helpful in achieving what you want. I don't have a copy of it
anymore. Anyone??
At 08:54 AM 03/23/2004, you wrote:
Hi All,
Does UV support opening another process's STDIN or STDOUT to a file
descriptor? This could solve a lot of interfacing problems for me. For
those familiar with perl, this functionality is provided by the open()
function something like:
open(descriptor, |externalcmd).
In UV, this would be equivalent to:
OPENSEQ |externalcmd TO DESCRIPTOR ...
or
OPENSEQ externalcmd| TO DESCRIPTOR ...
The '|' symbol in front of (or behind) the command determines whether the
process is opened for input or output.
You can then use WRITESEQ or READSEQ to communicate with the external
unix/windows program which reads its STDIN or writes to its STDOUT.
Similar functionality is already available in UV via the EXECUTE ...
CAPTURING command but its major drawback is that a new process is started
with every EXECUTE and the call to EXECUTE will block until the external
process exits.
Thanks for any help.
Marco
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