\ ========== Copyright Header Begin ==========================================
\ 
\ Hypervisor Software File: reboot.fth
\ 
\ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
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\ ========== Copyright Header End ============================================
id: @(#)reboot.fth 1.7 07/01/22
purpose: 
copyright: Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
copyright: Use is subject to license terms.

\ Create the hash storage area.
" reboot-info" create-nvhash create-config-hash		( acf )
headers
create reboot-info token, does> token@ ;
headerless

\ Mark the area as non-volatile so garbage collection won't release
\ its resources by assigning an acf other than 'crash'.
' reboot-info reboot-info >body token!

d# 255 3 wa+ constant /reboot-info-buf
/reboot-info-buf buffer: reboot-info-buf
true value load-reboot-info?

: (get-reboot-info ( -- bootpath,len line# column# )
   options-open?  if
      load-reboot-info?  if				(  )
         reboot-info-buf /reboot-info-buf erase		(  )
         reboot-info dup get				( acf adr len )
         /reboot-info-buf min reboot-info-buf swap	( acf adr dest len )
         move						( acf )
         3 perform-action				(  )
         false to load-reboot-info?			(  )
      then						(  )
   then							(  )
   reboot-info-buf  >r					(  )
   r@  2 wa+ count					( adr len )
   r@       w@						( adr len line# )
   r@  wa1+ w@						( adr len line# column# )
   r> drop						(  )
;

: (save-reboot-info ( bootpath,len line# column# -- )
   reboot-info-buf  >r				( bootpath,len line# column# )

   \ Save the terminal emulator cursor position
   r@ wa1+ w!					( bootpath,len line# )
   r@      w!					( bootpath,len )
   tuck						( len bootpath,len )

   \ Remember the boot path
   d# 255 min  r@ 2 wa+  place  r>		( len buf-addr )
   swap 3 wa+					( buf-addr len' )
   2dup reboot-info-buf swap move		( buf-addr len' )
   options-open?  if				( buf-addr len' )
      reboot-info set				(  )
   else						( buf-addr len' )
      2drop					(  )
   then						(  )
;

' (save-reboot-info is save-reboot-info
' (get-reboot-info is get-reboot-info