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;; -*-scheme-*- -------------- mixguile-vm-stat.scm :
; mixvm status functions
; ------------------------------------------------------------------
; Copyright (C) 2001, 2006, 2007 Free Software Foundation, Inc.
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 3 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, write to the Free Software
; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
;
;;
;; possible status index
(define mix-status-values (vector 'MIX_ERROR
'MIX_BREAK
'MIX_COND_BREAK
'MIX_HALTED
'MIX_RUNNING
'MIX_LOADED
'MIX_EMPTY))
;; return status as a simbol
(define mix-vm-status (lambda () (vector-ref mix-status-values (mixvm-status))))
;; check for a given status
(define mix-vm-status?
(lambda (status) (eq? status (mix-vm-status))))
;; predicates for each possible status
(define mix-vm-error? (lambda () (mix-vm-status? 'MIX_ERROR)))
(define mix-vm-break? (lambda () (mix-vm-status? 'MIX_BREAK)))
(define mix-vm-cond-break? (lambda () (mix-vm-status? 'MIX_COND_BREAK)))
(define mix-vm-halted? (lambda () (mix-vm-status? 'MIX_HALTED)))
(define mix-vm-running? (lambda () (mix-vm-status? 'MIX_RUNNING)))
(define mix-vm-loaded? (lambda () (mix-vm-status? 'MIX_LOADED)))
(define mix-vm-empty? (lambda () (mix-vm-status? 'MIX_EMPTY)))
;; define hooks on break conditions
(define mix-make-conditional-hook
(lambda (test hook)
(lambda (arglist)
(if (test) (hook (mix-src-line-no) (mix-loc))))))
(define mix-add-run-next-hook
(lambda (hook)
(mix-add-post-hook 'run hook)
(mix-add-post-hook 'next hook)))
(define mix-add-break-hook
(lambda (hook)
(mix-add-run-next-hook (mix-make-conditional-hook mix-vm-break? hook))))
(define mix-add-cond-break-hook
(lambda (hook)
(mix-add-run-next-hook (mix-make-conditional-hook
mix-vm-cond-break? hook))))
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