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Diffstat (limited to 'src/fileops/fileops.src')
| -rw-r--r-- | src/fileops/fileops.src | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/fileops/fileops.src b/src/fileops/fileops.src new file mode 100644 index 00000000..cdb6af27 --- /dev/null +++ b/src/fileops/fileops.src @@ -0,0 +1,137 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 2001, 2012 Oracle and/or its affiliates. All rights reserved. + * + * $Id$ + */ + +DBPRIVATE +PREFIX __fop + +INCLUDE #include "db_int.h" +INCLUDE #include "dbinc/crypto.h" +INCLUDE #include "dbinc/db_page.h" +INCLUDE #include "dbinc/db_am.h" +INCLUDE #include "dbinc/txn.h" +INCLUDE #include "dbinc/fop.h" +INCLUDE + +/* + * create -- create a file system object. + * + * name: name in the file system + * appname: indicates if the name needs to go through __db_appname + * mode: file system mode + */ +BEGIN_COMPAT create 42 143 +DBT name DBT s +ARG appname u_int32_t lu +ARG mode u_int32_t o +END + +BEGIN create 48 143 +DBT name DBT s +DBT dirname DBT s +ARG appname u_int32_t lu +ARG mode u_int32_t o +END + +/* + * remove -- remove a file system object. + * + * name: name in the file system + * appname: indicates if the name needs to go through __db_appname + */ +BEGIN remove 42 144 +DBT name DBT s +DBT fid DBT s +ARG appname u_int32_t lu +END + +/* + * write: log the writing of data into an object. + * + * name: file containing the page. + * appname: indicates if the name needs to go through __db_appname + * pgsize: page size. + * pageno: page number in the file. + * offset: offset on the page. + * page: the actual meta-data page. + * flag: non-0 indicates that this is a tempfile, so we needn't undo + * these modifications (we'll toss the file). + */ +BEGIN_COMPAT write 42 145 +DBT name DBT s +ARG appname u_int32_t lu +ARG pgsize u_int32_t lu +ARG pageno db_pgno_t lu +ARG offset u_int32_t lu +DBT page DBT s +ARG flag u_int32_t lu +END + +BEGIN write 48 145 +DBT name DBT s +DBT dirname DBT s +ARG appname u_int32_t lu +ARG pgsize u_int32_t lu +ARG pageno db_pgno_t lu +ARG offset u_int32_t lu +DBT page DBT s +ARG flag u_int32_t lu +END + +/* + * rename: move a file from one name to another. + * The appname value indicates if this is a path name that should be used + * directly (i.e., no interpretation) or if it is a pathname that should + * be interpreted via calls to __db_appname. The fileid is the 20-byte + * DB fileid of the file being renamed. We need to check it on recovery + * so that we don't inadvertently overwrite good files. + * + * There are two variants of this log record: one that must be both done + * and undone and one that is not undone (used for renaming tmp files, see + * SR #15119) + * + * These two record types use the same structure, read, and print functions, + * but have different recovery functions. + */ +BEGIN_COMPAT rename 42 146 +DUPLICATE rename_noundo 46 150 +DBT oldname DBT s +DBT newname DBT s +DBT fileid DBT s +ARG appname u_int32_t lu +END + +BEGIN rename 48 146 +DUPLICATE rename_noundo 46 150 +DBT oldname DBT s +DBT newname DBT s +DBT dirname DBT s +DBT fileid DBT s +ARG appname u_int32_t lu +END + +/* + * File removal record. This is a DB-level log record that indicates + * we've just completed some form of file removal. The purpose of this + * log record is to logically identify the particular instance of the + * named file so that during recovery, in deciding if we should roll-forward + * a remove or a rename, we can make sure that we don't roll one forward and + * delete or overwrite the wrong file. + * real_fid: The 20-byte unique file identifier of the original file being + * removed. + * tmp_fid: The unique fid of the tmp file that is removed. + * name: The pre- __db_appname name of the file + * child: The transaction that removed or renamed the file. + */ + */ +BEGIN file_remove 42 141 +DBT real_fid DBT s +DBT tmp_fid DBT s +DBT name DBT s +ARG appname u_int32_t lu +ARG child u_int32_t lx +END |