#include <u.h>#include <libc.h>#include <thread.h>#include "threadimpl.h" static long_ioreadn(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 readn(fd, a, n);} longioreadn(Ioproc *io, int fd, void *a, long n){	return iocall(io, _ioreadn, fd, a, n);}