void ofproto_type_wait(const char *datapath_type);
int ofproto_create(const char *datapath, const char *datapath_type,
void ofproto_type_wait(const char *datapath_type);
int ofproto_create(const char *datapath, const char *datapath_type,
int ofproto_delete(const char *name, const char *type);
int ofproto_run(struct ofproto *);
int ofproto_delete(const char *name, const char *type);
int ofproto_run(struct ofproto *);