DB_ENV->memp_fcreate()
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## DB_ENV->memp_fcreate()

    #include <db.h>

    int
    DB_ENV->memp_fcreate(DB_ENV *dbenvp, DB_MPOOLFILE **dbmfp,
                         u_int32_t flags);

The `DB_ENV->memp_fcreate()` method creates a DB_MPOOLFILE structure that is the handle for a Berkeley DB cache (that is, a shared memory buffer pool file). A pointer to this structure is returned in the memory to which dbmfp refers. Calling the DB_MPOOLFILE->close() method will discard the returned handle.

The `DB_ENV->memp_fcreate()` method returns a non-zero error value on failure and 0 on success.

### Parameters

#### dbmfp

The `DB_ENV->memp_fcreate()` method returns a pointer to a mpool structure in dbmfp.

#### flags

The flags parameter is currently unused, and must be set to 0.

### Class

DB_ENV, DB_MPOOLFILE

### See Also

Memory Pools and Related Methods

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