K 10
svn:author
V 7
rwatson
K 8
svn:date
V 27
2004-07-14T20:31:05.000000Z
K 7
svn:log
V 202
Add a mutex ng_tty_mtx to protect the global variable ngt_unit.  Note
that the locking of globals here isn't complete, and there's also a
locking issue relating to calling into and out of the tty code.

END