marksweep.h

来自「This is a resource based on j2me embedde」· C头文件 代码 · 共 52 行

/*
 * @(#)marksweep.h	1.10 06/10/10
 *
 * Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.  
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER  
 *   
 * This program is free software; you can redistribute it and/or  
 * modify it under the terms of the GNU General Public License version  
 * 2 only, as published by the Free Software Foundation.   
 *   
 * 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 version 2 for more details (a copy is  
 * included at /legal/license.txt).   
 *   
 * You should have received a copy of the GNU General Public License  
 * version 2 along with this work; if not, write to the Free Software  
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  
 * 02110-1301 USA   
 *   
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa  
 * Clara, CA 95054 or visit www.sun.com if you need additional  
 * information or have any questions. 
 *
 */

/*
 * This file is specific and only visible to mark-sweep GC implementation.
 */

#ifndef _INCLUDED_MARKSWEEP_H
#define _INCLUDED_MARKSWEEP_H

struct CVMMsHeap {
    CVMUint32     size; /* Size of heap in no. of bytes */
    CVMUint32*    data; /* The heap data area */

    /* Bit is on if there is an object in the corresponding heap addr */
    CVMUint32*    boundaries;

    /* Bit is on if object in the corresponding heap addr is marked */
    CVMUint32*    markbits;

    CVMUint32     sizeOfBitmaps; /* The size in bytes of the 'boundaries' and
				    'markbits' arrays */
};

typedef struct CVMMsHeap CVMMsHeap;

#endif /* _INCLUDED_MARKSWEEP_H */