db2/include/db_am.h

   1 /*-
   2  * See the file LICENSE for redistribution information.
   3  *
   4  * Copyright (c) 1996, 1997
   5  *      Sleepycat Software.  All rights reserved.
   6  *
   7  *      @(#)db_am.h     10.6 (Sleepycat) 8/27/97
   8  */
   9 #ifndef _DB_AM_H
  10 #define _DB_AM_H
  11
  12 #define DB_ISBIG        0x01
  13 #define DB_ADD_DUP      0x10
  14 #define DB_REM_DUP      0x20
  15 #define DB_ADD_BIG      0x30
  16 #define DB_REM_BIG      0x40
  17 #define DB_SPLITOLD     0x50
  18 #define DB_SPLITNEW     0x60
  19
  20 /*
  21  * Standard initialization and shutdown macros for all recovery functions.
  22  *
  23  * Requires the following local variables:
  24  *
  25  *      DB *file_dbp, *mdbp;
  26  *      DB_MPOOLFILE *mpf;
  27  *      int ret;
  28  */
  29 #define REC_INTRO(func) {                                               \
  30         file_dbp = mdbp = NULL;                                         \
  31         if ((ret = func(dbtp->data, &argp)) != 0)                       \
  32                 goto out;                                               \
  33         if ((ret = __db_fileid_to_db(logp, &mdbp, argp->fileid)) != 0) {\
  34                 if (ret == DB_DELETED)                                  \
  35                         ret = 0;                                        \
  36                 goto out;                                               \
  37         }                                                               \
  38         if (mdbp == NULL)                                               \
  39                 goto out;                                               \
  40         if (F_ISSET(mdbp, DB_AM_THREAD)) {                              \
  41                 if ((ret = __db_gethandle(mdbp,                         \
  42                     mdbp->type == DB_HASH ? __ham_hdup : __bam_bdup,    \
  43                     &file_dbp)) != 0)                                   \
  44                         goto out;                                       \
  45         } else                                                          \
  46                 file_dbp = mdbp;                                        \
  47         F_SET(file_dbp, DB_AM_RECOVER);                                 \
  48         mpf = file_dbp->mpf;                                            \
  49 }
  50 #define REC_CLOSE {                                                     \
  51         if (argp != NULL)                                               \
  52                 free (argp);                                            \
  53         if (file_dbp != NULL) {                                         \
  54                 F_CLR(file_dbp, DB_AM_RECOVER);                         \
  55                 if (F_ISSET(file_dbp, DB_AM_THREAD))                    \
  56                         __db_puthandle(file_dbp);                       \
  57         }                                                               \
  58         return (ret);                                                   \
  59 }
  60
  61 /*
  62  * No-op versions of the same macros.
  63  */
  64 #define REC_NOOP_INTRO(func) {                                          \
  65         if ((ret = func(dbtp->data, &argp)) != 0)                       \
  66                 return (ret);                                           \
  67 }
  68 #define REC_NOOP_CLOSE {                                                \
  69         if (argp != NULL)                                               \
  70                 free (argp);                                            \
  71         return (ret);                                                   \
  72 }
  73
  74 /*
  75  * Standard debugging macro for all recovery functions.
  76  */
  77 #ifdef DEBUG_RECOVER
  78 #define REC_PRINT(func)                                                 \
  79         (void)func(logp, dbtp, lsnp, redo, info);
  80 #else
  81 #define REC_PRINT(func)                                                 \
  82         info = info;                    /* XXX: Shut the compiler up. */
  83 #endif
  84
  85 #include "db_auto.h"
  86 #include "db_ext.h"
  87 #endif