[OPEN-ILS-DEV] PATCH: osrf_hash.[ch] (new function)

[Scott McKellar]

This patch adds a new function so that code outside of osrf_hash.c
doesn't have to directly access the "current" member of an
osrfHashIterator.  This bit of encapsulation will make it easier
to refactor the osrfHash code.

Note that I submitted some patches to the same files a few days ago
to the same files, having to do with reusing the memory used for the
"current" member.  Those earlier patches are still okay, but they
will be superceded by a more extensive rewrite in the near future,
so it may not be worthwhile to bother with them in the meanwhile.

The changes in the present patch files are independent of those
patches.  I manually edited these patches to strip out the earlier
changes.  I think they will still work, but if they don't because
I mangled something, you can either apply the same changes manually
or ask me for a better patch.  I have just made a little extra
trouble for myself by sending too many patches to the same files
too quickly.

Scott McKellar
http://home.swbell.net/mck9/ct/

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