K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2007-05-19T20:18:12.000000Z
K 7
svn:log
V 179
Expose sx_xholder() as a public macro.  It returns a pointer to the thread
that holds the current exclusive lock, or NULL if no thread holds an
exclusive lock.

Requested by:	pjd

END