stasis-aries-wal/stasis/constants.h

/*---
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---*/
/**
 * @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__
#include <stasis/transactional.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 LLADD_DEADLOCK       -1
#define LLADD_NO_MEM         -2
#define LLADD_IO_ERROR       -3
#define LLADD_INTERNAL_ERROR -4

//#define FILE_OPRN_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

#ifndef MAX_BUFFER_SIZE
//#define MAX_BUFFER_SIZE 100003 
#define MAX_BUFFER_SIZE 20029
//#define MAX_BUFFER_SIZE 10007 
//#define MAX_BUFFER_SIZE 5003
//#define MAX_BUFFER_SIZE 2003 
//#define MAX_BUFFER_SIZE 4006 
/* #define MAX_BUFFER_SIZE 71  */
/*#define MAX_BUFFER_SIZE 7 */
#endif

#define BUFFER_MANAGER_REOPEN 0 
#define BUFFER_MANAGER_HASH   1
#define BUFFER_MANAGER_MEM_ARRAY 2
#define BUFFER_MANAGER_DEPRECATED_HASH 3

#define BUFFER_MANAGER_FILE_HANDLE_NON_BLOCKING 0
#define BUFFER_MANAGER_FILE_HANDLE_FILE 1
#define BUFFER_MANAGER_FILE_HANDLE_PFILE 2
#define BUFFER_MANAGER_FILE_HANDLE_DEPRECATED 3

#define IO_HANDLE_FILE 1
#define IO_HANDLE_PFILE 2

#define LOG_TO_FILE   0
#define LOG_TO_MEMORY 1

#define VOLATILE   0
#define PERSISTENT 1
#define DURABLE    2

#define MAX_TRANSACTIONS 1000

/** Operation types */

#define NO_INVERSE_WHOLE_PAGE -2
#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
#define OPERATION_REALLOC      8
/*#define OPERATION_PAGE_ALLOC   ?
  #define OPERATION_PAGE_DEALLOC 9 */
#define OPERATION_PAGE_SET     10
#define OPERATION_UPDATE_FREESPACE 11
#define OPERATION_UPDATE_FREESPACE_INVERSE 12
#define OPERATION_UPDATE_FREELIST 13
#define OPERATION_UPDATE_FREELIST_INVERSE 14
#define OPERATION_FREE_PAGE   15
#define OPERATION_ALLOC_FREED 16
#define OPERATION_UNALLOC_FREED 17
#define OPERATION_NOOP        18
#define OPERATION_INSTANT_SET 19
#define OPERATION_ARRAY_LIST_ALLOC 20
#define OPERATION_INITIALIZE_PAGE 21
// #define OPERATION_UNINITIALIZE_PAGE 22
#define OPERATION_LINEAR_INSERT 23
#define OPERATION_UNDO_LINEAR_INSERT 24
#define OPERATION_LINEAR_DELETE 25
#define OPERATION_UNDO_LINEAR_DELETE 26
#define OPERATION_SET_RANGE 27
#define OPERATION_SET_RANGE_INVERSE 28
#define OPERATION_LINKED_LIST_INSERT 29
#define OPERATION_LINKED_LIST_REMOVE 30
#define OPERATION_LINEAR_HASH_INSERT 31
#define OPERATION_LINEAR_HASH_REMOVE 32

//#define OPERATION_SET_RAW    33
//#define OPERATION_INSTANT_SET_RAW 34

#define OPERATION_ALLOC_BOUNDARY_TAG 35

#define OPERATION_FIXED_PAGE_ALLOC 36

#define OPERATION_ALLOC_REGION 37
#define OPERATION_DEALLOC_REGION 38

// these operations are specific to OASYS
#define OPERATION_OASYS_DIFF_DO           75  
#define OPERATION_OASYS_DIFF_REDO         76  
#define OPERATION_OASYS_DIFF_UNDO         77  
#define OPERATION_OASYS_SEMIDIFF_DO       78
#define OPERATION_OASYS_SEMIDIFF_REDO     79

/* Storage managers */
#define STORAGE_MANAGER_TALLOC 1
#define STORAGE_MANAGER_NAIVE_PAGE_ALLOC  1

/* number above should be less than number below */
#define MAX_OPERATIONS 80

//#define SLOT_TYPE_BASE PAGE_SIZE

#define INVALID_XID (-1)

/** This constant is used as a placeholder to mark slot locations that are invalid.
    @see slotted.c, indirect.c
*/
#define INVALID_SLOT  (-1)
/** This constant is used as a placeholder to mark slot locations that contain blobs. 
    @see slotted.c, indirect.c,  blobManager.c  */
#define BLOB_SLOT     (-2)
#define NORMAL_SLOT  (-3)
#define SLOT_TYPE_END (-4)

/** Initialized statically in transactional2.c */
extern const short SLOT_TYPE_LENGTHS[];
 
#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
*/
/* A log type reservered for the log implementation.  Its format
   depends on the physical log's implementation.  Most other code
   (recovery, abort) should be prepared to accept and ignore these
   entries. */
#define INTERNALLOG 0
#define XBEGIN 1
#define XCOMMIT 2
#define XABORT 3
#define UPDATELOG 4
#define DEFERLOG 5
/** 
    XEND is used for after the pages touched by a transaction have
    been flushed to stable storage.
    
    @todo Actually write XEND entries to the log so that log
    truncation can be implemented!

*/
#define XEND 6
#define CLRLOG 7

/* Page types */

#define UNINITIALIZED_PAGE  0
#define SLOTTED_PAGE        1
#define INDIRECT_PAGE       2
#define LLADD_HEADER_PAGE   3
#define LLADD_FREE_PAGE     4
#define FIXED_PAGE          5
#define ARRAY_LIST_PAGE     6
#define BOUNDARY_TAG_PAGE   7
#define BLOB_PAGE           8
#define LSM_ROOT_PAGE       9
#define USER_DEFINED_PAGE(n) (100+n)  // 0 <= n < 155
#define MAX_PAGE_TYPE       255

#define TALLOC_REGION_SIZE 100  // Pages

#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)
#define LOG_MODE  (O_CREAT | O_RDWR | O_SYNC)

#define MAX_LSM_COMPARATORS 256

#endif