#define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
#define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
#define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
#define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
#define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
#define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)