rsync - Jul 2003 - does rsync lock exclusively files to copy?

I'm running rsync 2.5.6 on windows (via cygwin) and I've had other
processes try to open the same files as rsync, but could not get through
sometimes. Does rsync place a shared lock or an exclusive lock on the files it
will copy from?

I checked into the sources but did not find any use of flock() which could
specify either LOCK_SH or LOCK_EX, so I'm not sure what the open() does when
used with O_RDONLY.

Any similar experiences?

Haralabos N. Athanassiou
BioInformatics Manager
Automated Cell Inc
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On Wed, Jul 23, 2003 at 09:12:21PM -0400, Haralabos Athanassiou wrote:
[reformatted because sender mailer is broken]
> I'm running rsync 2.5.6 on windows (via cygwin) and I've
> had other processes try to open the same files as rsync,
> but could not get through sometimes. Does rsync place a
> shared lock or an exclusive lock on the files it will copy
> from?
> 
> I checked into the sources but did not find any use of
> flock() which could specify either LOCK_SH or LOCK_EX, so
> I'm not sure what the open() does when used with O_RDONLY.
That's an artifact of windows.  All open operations are
exclusive.  This is the bane of backups on whendoze.

-- 
________________________________________________________________
	J.W. Schultz            Pegasystems Technologies
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