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115 lines
3.2 KiB
115 lines
3.2 KiB
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996, 1997, 1998, 1999
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* Sleepycat Software. All rights reserved.
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*
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* @(#)db_am.h 11.4 (Sleepycat) 9/19/99
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*/
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#ifndef _DB_AM_H
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#define _DB_AM_H
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#define DB_MINPAGECACHE 10 /* Min pages access methods cache. */
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#define DB_ISBIG 0x01 /* DB recovery operation codes. */
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#define DB_ISSUBDB 0x02
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#define DB_ADD_DUP 0x10
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#define DB_REM_DUP 0x20
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#define DB_ADD_BIG 0x30
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#define DB_REM_BIG 0x40
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#define DB_SPLITOLD 0x50
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#define DB_SPLITNEW 0x60
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#define DB_ADD_PAGE 0x70
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#define DB_REM_PAGE 0x80
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#define DB_LOG_CREATE 0x90
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#define DB_LOG_DELETE 0xa0
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/*
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* This is a grotesque naming hack. We have modified the btree page
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* allocation and freeing functions to be generic and have therefore
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* moved them into the access-method independent portion of the code.
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* However, since we didn't want to create new log records and routines
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* for them, we left their logging and recovery functions over in btree.
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* To make the code look prettier, we macro them, but this is sure to
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* confuse the heck out of everyone.
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*/
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#define __db_pg_alloc_log CDB___bam_pg_alloc_log
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#define __db_pg_free_log CDB___bam_pg_free_log
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/*
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* Standard initialization and shutdown macros for all recovery functions.
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*
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* Requires the following local variables:
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*
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* DB *file_dbp, *mdbp;
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* DB_MPOOLFILE *mpf;
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* int ret;
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*/
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#define REC_INTRO(func, inc_count) { \
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file_dbp = NULL; \
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dbc = NULL; \
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if ((ret = func(dbtp->data, &argp)) != 0) \
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goto out; \
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if ((ret = CDB___db_fileid_to_db(dbenv, \
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&file_dbp, argp->fileid, inc_count)) != 0) { \
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if (ret == DB_DELETED) { \
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ret = 0; \
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goto done; \
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} \
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goto out; \
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} \
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if (file_dbp == NULL) \
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goto out; \
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if ((ret = file_dbp->cursor(file_dbp, NULL, &dbc, 0)) != 0) \
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goto out; \
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F_SET(dbc, DBC_RECOVER); \
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mpf = file_dbp->mpf; \
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}
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#define REC_CLOSE \
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if (argp != NULL) \
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CDB___os_free(argp, sizeof(*argp)); \
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if (dbc != NULL) \
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dbc->c_close(dbc); \
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return (ret);
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/*
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* No-op versions of the same macros.
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*/
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#define REC_NOOP_INTRO(func) { \
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if ((ret = func(dbtp->data, &argp)) != 0) \
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return (ret); \
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}
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#define REC_NOOP_CLOSE \
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if (argp != NULL) \
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CDB___os_free(argp, sizeof(*argp)); \
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return (ret); \
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/*
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* Standard debugging macro for all recovery functions.
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*/
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#ifdef DEBUG_RECOVER
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#define REC_PRINT(func) \
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(void)func(dbenv, dbtp, lsnp, redo, info);
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#else
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#define REC_PRINT(func)
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#endif
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/*
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* If doing transactions we have to hold the locks associated with a data item
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* from a page for the entire transaction. However, we don't have to hold the
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* locks associated with walking the tree. Distinguish between the two so that
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* we don't tie up the internal pages of the tree longer than necessary.
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*/
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#define __LPUT(dbc, lock) \
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(F_ISSET((dbc)->dbp->dbenv, DB_ENV_LOCKING) ? \
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CDB_lock_put((dbc)->dbp->dbenv, &(lock)) : 0)
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#define __TLPUT(dbc, lock) \
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(F_ISSET((dbc)->dbp->dbenv, DB_ENV_LOCKING) && \
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(dbc)->txn == NULL ? CDB_lock_put((dbc)->dbp->dbenv, &(lock)) : 0)
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#include "db_auto.h"
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#include "crdel_auto.h"
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#include "db_ext.h"
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#endif
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