[Rd] File lock mechanisms in R

From: Henrik Bengtsson <hb_at_stat.berkeley.edu>
Date: Mon, 02 Jul 2007 15:02:05 -0700


is there a (cross-platform) file-locking mechanism available in R (or via some package)?

I am looking for a way to have one R session lock a file for read/write access, while being updated/modified by another R session. This will provide me with a-poor-mans parallelization method. It is ok to have so called advisory looking (as in Unix), which are non-mandatory to follow. If not available, I'll use lock files, but there are some potential problems in creating such in an atomic way. Ideally I wish to have this working on all platforms.



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