typedef enum Tevent {	SAdmit = 0,	/* Edf admit */	SRelease,	/* Edf release, waiting to be scheduled */	SEdf,		/* running under EDF */	SRun,		/* running best effort */	SReady,		/* runnable but not running  */	SSleep,		/* blocked */	SYield,		/* blocked waiting for release */	SSlice,		/* slice exhausted */	SDeadline,	/* proc's deadline */	SExpel,		/* Edf expel */	SDead,		/* proc dies */	SInts,		/* Interrupt start */	SInte,		/* Interrupt end */	SUser,		/* user event */	SLock,		/* blocked on a queue or lock */	Nevent,} Tevent; typedef struct Traceevent	Traceevent;struct Traceevent {	u32int	pid;		u32int	etype;	/* Event type */	u64int	time;	/* time stamp  */	u32int	machno;	/* core number */};