#include <db_cxx.h> int DbEnv::get_blob_dir(const char **dirp);
The DbEnv::get_blob_dir() method returns
the directory location where blob data is stored. The default
location can be set using DbEnv::set_blob_dir(). Use this method only
if the database was opened in an environment. If the database
was not opened within an encompassing environment, use
Db::get_blob_dir() instead.
The DbEnv::get_blob_dir() method always returns
0 to indicate success.
The dirp parameter references memory into which is copied the path to the BLOB data directory. If DbEnv::set_blob_dir() has not been called prior to calling this method, or if BLOBS are not supported by this environment, then this parameter is set to NULL.