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112 lines
2.9 KiB
Plaintext
112 lines
2.9 KiB
Plaintext
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 2001-2002
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* Sleepycat Software. All rights reserved.
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*
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* $Id: fileops.src,v 1.8 2002/04/06 18:25:55 bostic Exp $
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*/
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PREFIX __fop
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DBPRIVATE
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INCLUDE #include "db_config.h"
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INCLUDE
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INCLUDE #ifndef NO_SYSTEM_INCLUDES
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INCLUDE #include <sys/types.h>
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INCLUDE
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INCLUDE #include <ctype.h>
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INCLUDE #include <string.h>
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INCLUDE #endif
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INCLUDE
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INCLUDE #include "db_int.h"
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INCLUDE #include "dbinc/crypto.h"
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INCLUDE #include "dbinc/db_page.h"
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INCLUDE #include "dbinc/db_dispatch.h"
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INCLUDE #include "dbinc/db_am.h"
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INCLUDE #include "dbinc/log.h"
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INCLUDE #include "dbinc/rep.h"
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INCLUDE #include "dbinc/txn.h"
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INCLUDE #include "dbinc/fop.h"
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INCLUDE
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/*
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* create -- create a file system object.
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*
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* name: name in the file system
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* appname: indicates if the name needs to go through __db_appname
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* mode: file system mode
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*/
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BEGIN create 143
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DBT name DBT s
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ARG appname u_int32_t lu
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ARG mode u_int32_t o
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END
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/*
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* remove -- remove a file system object.
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*
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* name: name in the file system
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* appname: indicates if the name needs to go through __db_appname
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*/
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BEGIN remove 144
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DBT name DBT s
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DBT fid DBT s
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ARG appname u_int32_t lu
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END
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/*
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* write: log the writing of data into an object.
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*
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* name: file containing the page.
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* appname: indicates if the name needs to go through __db_appname
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* offset: offset in the file.
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* page: the actual meta-data page.
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* flag: non-0 indicates that this is a tempfile, so we needn't undo
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* these modifications (we'll toss the file).
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*/
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BEGIN write 145
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DBT name DBT s
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ARG appname u_int32_t lu
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ARG offset u_int32_t lu
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PGDBT page DBT s
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ARG flag u_int32_t lu
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END
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/*
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* rename: move a file from one name to another.
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* The appname value indicates if this is a path name that should be used
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* directly (i.e., no interpretation) or if it is a pathname that should
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* be interpreted via calls to __db_appname. The fileid is the 20-byte
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* DB fileid of the file being renamed. We need to check it on recovery
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* so that we don't inadvertently overwrite good files.
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*/
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BEGIN rename 146
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DBT oldname DBT s
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DBT newname DBT s
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DBT fileid DBT s
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ARG appname u_int32_t lu
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END
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/*
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* File removal record. This is a DB-level log record that indicates
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* we've just completed some form of file removal. The purpose of this
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* log record is to logically identify the particular instance of the
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* named file so that during recovery, in deciding if we should roll-forward
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* a remove or a rename, we can make sure that we don't roll one forward and
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* delete or overwrite the wrong file.
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* real_fid: The 20-byte unique file identifier of the original file being
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* removed.
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* tmp_fid: The unique fid of the tmp file that is removed.
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* name: The pre- __db_appname name of the file
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* child: The transaction that removed or renamed the file.
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*/
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*/
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BEGIN file_remove 141
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DBT real_fid DBT s
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DBT tmp_fid DBT s
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DBT name DBT s
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ARG appname u_int32_t lu
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ARG child u_int32_t lx
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END
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