Reading a XML document embeeded in a logfile

Henry S. Thompson ht at
Tue Oct 20 09:56:26 BST 1998

James Grimm <james_grimm at> writes:

> there is still the little problem of locking the "logentries" file.  The
> logentries file won't be well-formed, even with this wrapper, if the
> parser reads the logfile while another thread/program is adding a new
> log_entry.

Standard solution at this level is to copy the "logentries" file, add
your entry, then move it back.  Reduces the chances of collision, and
also some operating systems (e.g. UNIX) will do their best to let any
reading underway at the time of move back complete with the old

  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail: ht at

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