github.com/nibnait/go-learn@v0.0.0-20220227013611-dfa47ea6d2da/src/pkg/mod/golang.org/x/sys@v0.0.0-20210630005230-0f9fa26af87c/unix/readdirent_getdirentries.go (about) 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 8 package unix 9 10 import "unsafe" 11 12 // ReadDirent reads directory entries from fd and writes them into buf. 13 func 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? 18 var base = (*uintptr)(unsafe.Pointer(new(uint64))) 19 return Getdirentries(fd, buf, base) 20 }