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/*
 * Project: S.Ha.R.K.
 *
 * Coordinators:
 *   Giorgio Buttazzo    <giorgio@sssup.it>
 *   Paolo Gai           <pj@gandalf.sssup.it>
 *
 * Authors     :
 *   Paolo Gai           <pj@gandalf.sssup.it>
 *   (see the web pages for full authors list)
 *
 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
 *
 * http://www.sssup.it
 * http://retis.sssup.it
 * http://shark.sssup.it
 */

/**
 ------------
 CVS :        $Id: stats.c,v 1.1.1.1 2002-03-29 14:12:52 pj Exp $

 File:        $File$
 Revision:    $Revision: 1.1.1.1 $
 Last update: $Date: 2002-03-29 14:12:52 $
 ------------

this code is from:
List-based Memory Management, from OsKit.

**/

/*
 * Copyright (C) 2000 Paolo Gai
 *
 * 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 2 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
/*
 * Copyright (c) 1995, 1998-1999 University of Utah and the Flux Group.
 * All rights reserved.
 *
 * This file is part of the Flux OSKit.  The OSKit is free software, also known
 * as "open source;" you can redistribute it and/or modify it under the terms
 * of the GNU General Public License (GPL), version 2, as published by the Free
 * Software Foundation (FSF).  To explore alternate licensing terms, contact
 * the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
 *
 * The OSKit 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 GPL for more details.  You should have
 * received a copy of the GPL along with the OSKit; see the file COPYING.  If
 * not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
 */
/*
 * Debugging routine:
 * dump a summary of LMM memory pool usage.
 */

#ifndef DEBUG
#define DEBUG
#endif

#include <arch/stdio.h>
#include <kernel/func.h>

#include <kernel/lmm.h>
#define assert(test) assertk(test)

void lmm_stats(lmm_t *lmm)
{
        struct lmm_region *reg;
        unsigned int regions, nodes, memfree;

        regions = nodes = memfree = 0;
        for (reg = lmm->regions; reg; reg = reg->next)
        {
                struct lmm_node *node;
                size_t free_check;

                CHECKREGPTR(reg);

                regions++;

                free_check = 0;
                for (node = reg->nodes; node; node = node->next)
                {
                        assert(((DWORD)node & ALIGN_MASK) == 0);
                        assert((node->size & ALIGN_MASK) == 0);
                        assert(node->size >= sizeof(*node));
                        assert((node->next == 0) || (node->next > node));
                        assert((DWORD)node < reg->max);

                        nodes++;

                        free_check += node->size;
                }
                assert(reg->free == free_check);

                memfree += reg->free;
        }

        kern_printf("LMM=%p: %u bytes in %u regions, %d nodes\n",
               lmm, memfree, regions, nodes);
}