src

Go monorepo.
git clone git://code.dwrz.net/src
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readdirent_getdirentries.go (705B)

      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 || zos
      6 
      7 package unix
      8 
      9 import "unsafe"
     10 
     11 // ReadDirent reads directory entries from fd and writes them into buf.
     12 func ReadDirent(fd int, buf []byte) (n int, err error) {
     13 	// Final argument is (basep *uintptr) and the syscall doesn't take nil.
     14 	// 64 bits should be enough. (32 bits isn't even on 386). Since the
     15 	// actual system call is getdirentries64, 64 is a good guess.
     16 	// TODO(rsc): Can we use a single global basep for all calls?
     17 	var base = (*uintptr)(unsafe.Pointer(new(uint64)))
     18 	return Getdirentries(fd, buf, base)
     19 }