/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _MDB_VCB_H
#define _MDB_VCB_H

#include <mdb/mdb_addrvec.h>
#include <mdb/mdb_nv.h>

#ifdef  __cplusplus
extern "C" {
#endif

#ifdef _MDB

struct mdb_frame;                       /* Forward declaration */
struct mdb_cmd;                         /* Forward declaration */

typedef struct mdb_vcb {
        mdb_var_t *vc_var;              /* Pointer to dependent variable */
        mdb_addrvec_t vc_addrv;         /* List of address values */
        size_t vc_adnext;               /* Next index for vc_addrv */
        struct mdb_vcb *vc_link;        /* Pointer to next vcb in list */
        struct mdb_vcb *vc_parent;      /* Pointer to parent vcb */
} mdb_vcb_t;

extern mdb_vcb_t *mdb_vcb_create(mdb_var_t *);
extern void mdb_vcb_destroy(mdb_vcb_t *);

extern void mdb_vcb_propagate(mdb_vcb_t *);
extern void mdb_vcb_purge(mdb_vcb_t *);

extern void mdb_vcb_inherit(struct mdb_cmd *, struct mdb_cmd *);
extern void mdb_vcb_insert(mdb_vcb_t *, struct mdb_frame *);
extern mdb_vcb_t *mdb_vcb_find(mdb_var_t *, struct mdb_frame *);
extern void mdb_vcb_update(struct mdb_frame *, uintptr_t);

#endif  /* _MDB */

#ifdef  __cplusplus
}
#endif

#endif  /* _MDB_VCB_H */