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<== Date ==> <== Thread ==>

Subject: RE: EPICS archiver
From: [email protected] (Jeff Hill)
To: "Brian McAllister" <[email protected]>, "Eugene T. Yamamoto" <[email protected]>
Cc: <[email protected]>
Date: Thu, 1 Jul 1999 13:56:36 -0600
If this particular archiver code was stored at some site (hopefully APS) in
remote accessible CVS then it would be possible for knowledgeable persons to
apply patches given that the original author no longer works in the
collaboration.

>
> > Actually, AR does a core dump. No intentional aborts as far as
> I can see.
> > Maybe we just have a REALLY old version of AR.
>
> It calls assert(), which calls abort() when it fails, which generates a
> SIGABRT signal, which will cause a core dump if the current working
> directory is writable.
>
> See assert(3) and abort(3).
>
> It is quite intentional, and this isn't the only place AR dies in response
> to a condition which is not a true error condition.  Among other
> things, it
> does not distinguish between a write "failure" due to the max file size
> being exceeded and an actual error in writing to the file.
>
> ARR has similar problems.  For instance, if you are retrieving
> data and the
> file size has changed since the last retrieval, it aborts().  Using the
> "resync" item in the "retrieve" menu will prevent that.  If the size
> changes in the middle of the retrieve, you lose regardless.  This makes it
> harder to use on a "live" archive file than it should be.
>


Jeff



References:
Re: EPICS archiver Brian McAllister

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