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Berkeley DB: DB_MPOOLFILE->set_pgcookie
DB_MPOOLFILE->set_pgcookie
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#include <db.h>
int
DB_MPOOLFILE->set_pgcookie(DB_MPOOLFILE *mpf, DBT *pgcookie);
int
DB_MPOOLFILE->get_pgcookie(DB_MPOOLFILE *mpf, DBT *dbt);
Description: DB_MPOOLFILE->set_pgcookie
The DB_MPOOLFILE->set_pgcookie method specifies a byte string that is provided
to the functions registered to do input or output processing of the
file's pages as they are read from or written to, the backing filesystem
store. (See the DB_ENV->memp_register documentation for more
information.)
The DB_MPOOLFILE->set_pgcookie method configures a file in the memory pool, not only
operations performed using the specified DB_MPOOLFILE handle.
The DB_MPOOLFILE->set_pgcookie method may not be called after the DB_MPOOLFILE->open method is
called.
If the file is already open in the memory pool when
DB_MPOOLFILE->open is called, the information specified to DB_MPOOLFILE->set_pgcookie
will replace the existing information.
The DB_MPOOLFILE->set_pgcookie method
returns a non-zero error value on failure
and 0 on success.
Parameters
- pgcookie
- The pgcookie parameter is a byte string provided to the
functions registered to do input or output processing of the file's
pages.
Description: DB_MPOOLFILE->get_pgcookie
The DB_MPOOLFILE->get_pgcookie method returns the .
The DB_MPOOLFILE->get_pgcookie method may be called at any time during the life of the
application.
Class
DB_ENV, DB_MPOOLFILE
See Also
Memory Pools and Related Methods
Copyright (c) 1996-2004 Sleepycat Software, Inc. - All rights reserved.
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