#define TOUCH_RC_NONE          (0)
#define TOUCH_RC_BAD_HANDLE    (-1)
#define TOUCH_RC_UNIMPLEMENTED (-2)
#define TOUCH_RC_OPEN_INVAL    (-3)  /*< event open arguments invalid */
#define TOUCH_RC_RXLEN         (-13) /*< received length was unexpected */
#define TOUCH_RC_NOTRSP        (-14) /*< received msg not a response or event */
#define TOUCH_RC_NOTMINE       (-15) /*< received msg not my response */
#define TOUCH_RC_BADRC         (-16) /*< received with bad RC */