#include <db.h> int DB_ENV->get_mp_max_openfd(DB_ENV *env, int *maxopenfdp);
Returns the maximum number of file descriptors the library will open concurrently when flushing dirty pages from the cache. This value is set by the DB_ENV->set_mp_max_openfd() method.
The DB_ENV->get_mp_max_openfd()
method may be called at any time
during the life of the application.
The DB_ENV->get_mp_max_openfd()
method returns a non-zero error value on failure and 0 on success.