typedef struct B B;typedef struct Bgr Bgr;typedef struct Cns Cns; enum {	Kb = 1024ULL,	Mb = 1024ULL*1024ULL,	Gb = 1024ULL*1024ULL*1024ULL,}; struct Cns {	uvlong c;	uvlong ns;}; #pragma varargck type "σ" B*#pragma varargck type "τ" Cns struct B {	uvlong n;	uvlong tin;	uvlong tout;	uvlong step;	uvlong t0;	Cns tot, avg, med, min, max;	Cns p[100];	uvlong *c;	int nc, ic;	char *name;}; struct Bgr {	char *name;	B **b;	int nb;}; /* private */void benchstep(B *b);void tstart(uvlong *c);extern void (*tend)(uvlong *c); /* public */int benchwire(int cpu); Bgr *benchinitgr(Bgr *gr, char *name);B *benchadd(Bgr *gr, char *name);#define benchin(b) do{ tstart(&(b)->tin); }while(0)#define benchout(b) do{ tend(&(b)->tout); benchstep(b); }while(0)void benchprintgr(Bgr *gr, int fd);void benchfreegr(Bgr *gr);void bseparator(int fd); B *benchinit(B *b, char *name);void benchprint(B **b, int nb, int fd);