ref: 562d1ccf077427d1bdcde77eeb1eaddaba2a60b2
dir: /sys/src/libthread/ioread.c/
#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);
}
long
ioread(Ioproc *io, int fd, void *a, long n)
{
	return iocall(io, _ioread, fd, a, n);
}