1 /*-
2  * See the file LICENSE for redistribution information.
3  *
4  * Copyright (c) 1996, 1997, 1998
5  *	Sleepycat Software.  All rights reserved.
6  */
7 /*
8  * Copyright (c) 1995, 1996
9  *	The President and Fellows of Harvard University.  All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the University of
22  *	California, Berkeley and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  *    may be used to endorse or promote products derived from this software
25  *    without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  *	@(#)db_dispatch.h	10.4 (Sleepycat) 5/3/98
40  */
41 
42 #ifndef _DB_DISPATCH_H
43 #define _DB_DISPATCH_H
44 
45 struct __db_txnhead;	typedef struct __db_txnhead DB_TXNHEAD;
46 struct __db_txnlist;	typedef struct __db_txnlist DB_TXNLIST;
47 
48 /*
49  * Declarations and typedefs for the list of transaction IDs used during
50  * recovery.
51  */
52 struct __db_txnhead {
53 	LIST_HEAD(__db_headlink, __db_txnlist) head;
54 	u_int32_t maxid;
55 	int32_t generation;
56 };
57 
58 struct __db_txnlist {
59 	LIST_ENTRY(__db_txnlist) links;
60 	u_int32_t txnid;
61 	int32_t	generation;
62 };
63 
64 #define	DB_log_BEGIN		  0
65 #define	DB_txn_BEGIN		  5
66 #define	DB_ham_BEGIN		 20
67 #define	DB_db_BEGIN		 40
68 #define	DB_bam_BEGIN		 50
69 #define	DB_ram_BEGIN		100
70 #define	DB_user_BEGIN		150
71 
72 #define	TXN_UNDO		 0
73 #define	TXN_REDO		 1
74 #define	TXN_BACKWARD_ROLL	-1
75 #define	TXN_FORWARD_ROLL	-2
76 #define TXN_OPENFILES		-3
77 #endif
78