/*---
This software is copyrighted by the Regents of the University of
California, and other parties. The following terms apply to all files
associated with the software unless explicitly disclaimed in
individual files.

The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose,
provided that existing copyright notices are retained in all copies
and that this notice is included verbatim in any distributions. No
written agreement, license, or royalty fee is required for any of the
authorized uses. Modifications to this software may be copyrighted by
their authors and need not follow the licensing terms described here,
provided that the new terms are clearly indicated on the first page of
each file where they apply.

IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND
THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
---*/
/**
 * @file
 *
 * defines various constants
 *
 * @todo Sometime, LLADD's #includes need to be cleaned up.  In
 * particular, we should make sure everything directly or indirectly
 * includes this file, common.h, and constants.h 
 *
 * @ingroup LLADD_CORE
 *
 * $Id$
 */

#ifndef __CONSTANTS_H__
#define __CONSTANTS_H__

/*#define DEBUG 1*/

#define LOG_FILE "logfile.txt"
#define LOG_FILE_SCRATCH "logfile.txt~"
#define STORE_FILE "storefile.txt"
#define BLOB0_FILE "blob0_file.txt"
#define BLOB1_FILE "blob1_file.txt"

/* @define error codes
 */
#define OUT_OF_MEM 1
#define FILE_OPEN_ERROR 2
#define FILE_READ_ERROR 3
#define FILE_WRITE_ERROR 4
#define FILE_WRITE_OPEN_ERROR 5
#define MEM_WRITE_ERROR 6

#define PAGE_SIZE 4096

/*#define MAX_BUFFER_SIZE 100003 */
/*#define MAX_BUFFER_SIZE 10007  */
#define MAX_BUFFER_SIZE 71

/* 71 */
#define BUFFER_ASOOCIATIVE 2

#define MAX_TRANSACTIONS 32

/** Operation types */

#define NO_INVERSE -1
#define OPERATION_SET 0
#define OPERATION_INCREMENT 1
#define OPERATION_DECREMENT 2
#define OPERATION_ALLOC 3
#define OPERATION_PREPARE 4
#define OPERATION_LHINSERT 5
#define OPERATION_LHREMOVE 6
#define OPERATION_DEALLOC  7
/* number above should be less than number below */
#define MAX_OPERATIONS 20

/** @todo undocumented */

#define INVALID_SLOT PAGE_SIZE
#define NORMAL_SLOT (PAGE_SIZE + 1)
#define BLOB_SLOT (PAGE_SIZE + 2)
/** @todo should be sizeof(blob_record_t) */
#define BLOB_REC_SIZE 12
#define BLOB_THRESHOLD_SIZE (PAGE_SIZE-30)

#define BITS_PER_BYTE 8

/** Log entry types.  (Not to be confused with operation types, which are more interesting.) */


/*
  Definitions for different types of logs
*/
#define UPDATELOG 1
#define XBEGIN 2
#define XCOMMIT 3
#define XABORT 4
/* Folded into update log entries */
/*#define XALLOC 5*/
/** XEND is used for after a transaction is aborted or commited, and some
 *  additional steps are taken and then the XEND is written */
#define XEND 6
#define CLRLOG 7

#endif