#define R_RESORT (1<<2) /* resort the mailbox */
#define R_RESORT_SUB (1<<3) /* resort subthreads */
#define R_RESORT_INIT (1<<4) /* resort from scratch */
#define R_TREE (1<<5) /* redraw the thread tree */
#define R_RESORT (1<<2) /* resort the mailbox */
#define R_RESORT_SUB (1<<3) /* resort subthreads */
#define R_RESORT_INIT (1<<4) /* resort from scratch */
#define R_TREE (1<<5) /* redraw the thread tree */