int dpif_open(const char *name, struct dpif **);
int dpif_create(const char *name, struct dpif **);
+int dpif_create_and_open(const char *name, struct dpif **);
void dpif_close(struct dpif *);
const char *dpif_name(const struct dpif *);
int dpif_recv_get_mask(const struct dpif *, int *listen_mask);
int dpif_recv_set_mask(struct dpif *, int listen_mask);
+int dpif_get_sflow_probability(const struct dpif *, uint32_t *probability);
+int dpif_set_sflow_probability(struct dpif *, uint32_t probability);
int dpif_recv(struct dpif *, struct ofpbuf **);
int dpif_recv_purge(struct dpif *);
void dpif_recv_wait(struct dpif *);