xref: /titanic_50/usr/src/cmd/mdb/common/mdb/mdb_context.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 (c) 1999 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #ifndef	_MDB_CONTEXT_H
28 #define	_MDB_CONTEXT_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/types.h>
33 #include <setjmp.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 #ifdef	_MDB
40 
41 /*
42  * We hide the details of the context from the rest of MDB using the opaque
43  * mdb_context tag.  This will facilitate later porting activities.
44  */
45 typedef struct mdb_context mdb_context_t;
46 
47 extern mdb_context_t *mdb_context_create(int (*)(void));
48 extern void mdb_context_destroy(mdb_context_t *);
49 extern void mdb_context_switch(mdb_context_t *);
50 extern jmp_buf *mdb_context_getpcb(mdb_context_t *);
51 
52 #endif	/* _MDB */
53 
54 #ifdef	__cplusplus
55 }
56 #endif
57 
58 #endif	/* _MDB_CONTEXT_H */
59