#include <db.h> int DB_ENV->get_mp_mmapsize(DB_ENV *dbenv, size_t *mp_mmapsizep);
The DB_ENV->get_mp_mmapsize()
method returns the the maximum file
size, in bytes, for a file to be mapped into the process address space. This value can be
managed using the
DB_ENV->set_mp_mmapsize()
method.
The DB_ENV->get_mp_mmapsize()
method may be called at any time during
the life of the application.
The DB_ENV->get_mp_mmapsize()
method returns a non-zero error value on failure and 0 on success.