### DbMpoolFile::sync

`

###

    #include <db_cxx.h>

    int
    DbMpoolFile::sync();

### Description: DbMpoolFile::sync

The DbMpoolFile::sync method writes all pages associated with the DbMpoolFile, which were marked as modified using DbMpoolFile::put or DbMpoolFile::set, back to the source file. If any of the modified pages are pinned (that is, currently in use), DbMpoolFile::sync will ignore them.

The DbMpoolFile::sync method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.

### Class

DbEnv, DbMpoolFile

### See Also

Memory Pools and Related Methods`

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