#include "u.h"#include "libc.h"#include "thread.h" voidthreadmain(int argc, char **argv){	int fd[3];	Channel *c;	Waitmsg *w; 	ARGBEGIN{	case 'D':		break;	}ARGEND 	c = threadwaitchan();	fd[0] = dup(0, -1);	fd[1] = dup(1, -1);	fd[2] = dup(2, -1);	if(threadspawn(fd, argv[0], argv) < 0)		sysfatal("threadspawn: %r");	fd[0] = dup(0, -1);	fd[1] = dup(1, -1);	fd[2] = dup(2, -1);	if(threadspawn(fd, argv[0], argv) < 0)		sysfatal("threadspawn: %r");	w = recvp(c);	if(w == nil)		print("exec/recvp failed: %r\n");	else		print("%d %lud %lud %lud %s\n", w->pid, w->time[0], w->time[1], w->time[2], w->msg);	w = recvp(c);	if(w == nil)		print("exec/recvp failed: %r\n");	else		print("%d %lud %lud %lud %s\n", w->pid, w->time[0], w->time[1], w->time[2], w->msg);	threadexits(nil);}