1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _MDB_CALLB_H
28#define	_MDB_CALLB_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <mdb/mdb_list.h>
33#include <mdb/mdb_module.h>
34
35#ifdef __cplusplus
36extern "C" {
37#endif
38
39/*
40 * Callback facility designed to allow interested parties (dmods, targets, or
41 * even the core debugger framework) to register for notification when certain
42 * "interesting" events occur.
43 */
44
45/*
46 * Callback classes:
47 * (MDB_CALLBACK_* definitions in the module API need to be in sync with these)
48 */
49#define	MDB_CALLB_STCHG		1	/* System execution state change */
50#define	MDB_CALLB_PROMPT	2	/* Before printing the prompt */
51
52typedef void (*mdb_callb_f)(void *);
53
54typedef struct mdb_callb {
55	mdb_list_t	cb_list;	/* List of callbacks */
56	mdb_module_t	*cb_mod;	/* Requesting module (if any) */
57	int		cb_class;	/* When to notify */
58	mdb_callb_f	cb_func;	/* Function to invoke */
59	void		*cb_arg;	/* Argument for cb_func */
60} mdb_callb_t;
61
62extern mdb_callb_t *mdb_callb_add(mdb_module_t *, int, mdb_callb_f, void *);
63extern void mdb_callb_remove(mdb_callb_t *);
64extern void mdb_callb_remove_by_mod(mdb_module_t *);
65extern void mdb_callb_remove_all(void);
66extern void mdb_callb_fire(int);
67
68#ifdef __cplusplus
69}
70#endif
71
72#endif /* _MDB_CALLB_H */
73