db_dispatch.h

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/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1996, 1997, 1998, 1999, 2000
 *      Sleepycat Software.  All rights reserved.
 */
/*
 * Copyright (c) 1995, 1996
 *      The President and Fellows of Harvard University.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 *
 * $Id: db__dispatch_8h-source.html,v 1.1 2008/06/08 10:17:26 sebdiaz Exp $
 */

#ifndef _DB_DISPATCH_H
#define _DB_DISPATCH_H

struct __db_txnhead;    typedef struct __db_txnhead DB_TXNHEAD;
struct __db_txnlist;    typedef struct __db_txnlist DB_TXNLIST;

/*
 * Declarations and typedefs for the list of transaction IDs used during
 * recovery.  This is a generic list used to pass along whatever information
 * we need during recovery.
 */
struct __db_txnhead {
        LIST_HEAD(__db_headlink, __db_txnlist) head;
        u_int32_t maxid;
        int32_t generation;
};

#define TXNLIST_INVALID_ID      0xffffffff
struct __db_txnlist {
        enum { TXNLIST_DELETE, TXNLIST_TXNID } type;
        LIST_ENTRY(__db_txnlist) links;
        union {
                struct {
                        u_int32_t txnid;
                        int32_t generation;
                } t;
                struct {
#define TXNLIST_FLAG_DELETED    0x1
#define TXNLIST_FLAG_CLOSED     0x2
                        u_int32_t flags;
                        int32_t fileid;
                        u_int32_t count;
                        char *fname;
                } d;
        } u;
};

#define DB_user_BEGIN           10000

#endif

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