#define FLAG_DIR_CHANGED (1<<1) /* generator */
#define FLAG_XFER_DIR (1<<2) /* sender/receiver/generator */
#define FLAG_MOUNT_DIR (1<<3) /* sender/generator */
#define FLAG_DIR_CHANGED (1<<1) /* generator */
#define FLAG_XFER_DIR (1<<2) /* sender/receiver/generator */
#define FLAG_MOUNT_DIR (1<<3) /* sender/generator */