#include <u.h>#include <libc.h>#include <thread.h>#include "threadimpl.h" static long_ioread(va_list *arg){	int fd;	void *a;	long n; 	fd = va_arg(*arg, int);	a = va_arg(*arg, void*);	n = va_arg(*arg, long);	return read(fd, a, n);} longioread(Ioproc *io, int fd, void *a, long n){	return iocall(io, _ioread, fd, a, n);}