Thread: [Queue-developers] Fwd: Queue Question

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Yes, you posted a similar question to queue-developers; I'll answer your more 
extensive email here.

GNU Queue transmits a number of environmental factors to the server. These 
include things such as current working directory and the environment variables. 
These are stored in the Job Control File, the format of which is described in 
the recently published Internet Draft white paper, 
http://www.ietf.org/internet-drafts/draft-krebs-gnuqueue-protocol-00.txt (see 
previous message). This describes 1.20.1, 1.12.9 is a bit dated at this point.

The code for all of this is in queue.c and later read by handle.c, which writes 
this information to the file (or to a socket, really). Just look at the code, it 
is fairly well commented.

It would be nice to know what sort of functionality you are adding to GNU Queue. 
This helps reduce duplication of effort if someone else is making similar 
changes. OpenSource works best if developers contribute their modifications to 
the general project. You can submit your modifications as patches to the Patch 
archive on SourceForge (or just post them here if they are small.)

----- Forwarded message from Monica Lau <ml...@al...> -----
Date: Thu, 3 Aug 2000 10:55:34 -0700 (PDT)
From: Monica Lau <ml...@al...>
Reply-To: Monica Lau <ml...@al...>
Subject: Queue Question
To: wer...@ya...

Hi Mr. Krebs,

I am working on a project that involves adding more functionality to the
Queue software.  I have an important problem that I'm stuck on, and I
can't move forward with this project until I figure this out.  I know that
you're very busy, but I really hope that you can help me with this
problem.  I am currently using Queue 1.12.9, but my question is quite
general.

In a nutshell, this is what I'm asking: if I want to run queue on host
"grape" with the environment of host "apple," is this possible?  So, if I
enter "queue -- pwd" on grape, the result should be the pwd of apple, not
the pwd of grape.  Or if I enter "queue -- ls" on grape, the result should
be the directory listing of apple, not grape.  Is this possible?  How do I
pass apple's environment to grape?

The reason why I'm asking is because I have a central server that accepts
connections from clients.  So, if a client enters "queue -- pwd," this
information would get to the central server.  This central server would
then fork off a child process to run queue with the environment of the
client.  What I have tried doing is sending the client's "arge" array to
the central server via a socket, and then the server does an
exeve("queue", ..., arge).  Unfortunately, this does not work.  So, I'm
not sure how else to pass the client's environment to the server.

I mean, when I specify that queue run as batch mode on host "orange," the
queue daemon somehow knows about orange's environment.  How does the queue
daemon know about orange's environment?  If I can figure out how the queue
daemon knows about the client's environment, then I can hopefully move
forward with my project.

Thank you for your help. I truly appreciate it.

Sincerely,
Monica

----- End forwarded message -----