cubefs
1// Copyright 2019 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build darwin
6// +build darwin
7
8package unix
9
10import "unsafe"
11
12// ReadDirent reads directory entries from fd and writes them into buf.
13func ReadDirent(fd int, buf []byte) (n int, err error) {
14// Final argument is (basep *uintptr) and the syscall doesn't take nil.
15// 64 bits should be enough. (32 bits isn't even on 386). Since the
16// actual system call is getdirentries64, 64 is a good guess.
17// TODO(rsc): Can we use a single global basep for all calls?
18var base = (*uintptr)(unsafe.Pointer(new(uint64)))
19return Getdirentries(fd, buf, base)
20}
21