#include <db_cxx.h>

int 
DbMpoolFile::set_flags(int ftype); 

The DbMpoolFile::set_ftype() method specifies a file type for the purposes of input or output processing of the file's pages as they are read from or written to, the backing filesystem store.

The DbMpoolFile::set_ftype() method configures a file in the cache, not only operations performed using the specified DbMpoolFile handle.

The DbMpoolFile::set_ftype() method may not be called after the DbMpoolFile::open() method is called. If the file is already open in the cache when DbMpoolFile::open() is called, the information specified to DbMpoolFile::set_ftype() will replace the existing information.

The DbMpoolFile::set_ftype() 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.