typedef vlong				Time;typedef uvlong				Ticks;typedef struct Schedevent	Schedevent; enum {	Onemicrosecond =	1000ULL,	Onemillisecond =	1000000ULL,	Onesecond =		1000000000ULL,}; typedef enum SEvent {	SAdmit,		/* new proc arrives*/	SRelease,		/* released, but not yet scheduled (on qreleased) */	SRun,		/* one of this task's procs started running */	SPreempt,		/* the running proc was preempted */	SBlock,		/* none of the procs are runnable as a result of sleeping */	SResume,		/* one or more procs became runnable */	SDeadline,	/* proc's deadline */	SYield,		/* proc reached voluntary early deadline */	SSlice,		/* slice exhausted */	SExpel,		/* proc is gone */	SResacq,		/* acquire resource */	SResrel,		/* release resource */} SEvent; struct Schedevent {	ushort	tid;		/* Task ID */	SEvent	etype;	/* Event type */	Time		ts;		/* Event time */};