From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/internal/poll/fd_opendir_darwin.go | 39 ++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/internal/poll/fd_opendir_darwin.go (limited to 'src/internal/poll/fd_opendir_darwin.go') diff --git a/src/internal/poll/fd_opendir_darwin.go b/src/internal/poll/fd_opendir_darwin.go new file mode 100644 index 0000000..3ae2dc8 --- /dev/null +++ b/src/internal/poll/fd_opendir_darwin.go @@ -0,0 +1,39 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package poll + +import ( + "syscall" + _ "unsafe" // for go:linkname +) + +// OpenDir returns a pointer to a DIR structure suitable for +// ReadDir. In case of an error, the name of the failed +// syscall is returned along with a syscall.Errno. +func (fd *FD) OpenDir() (uintptr, string, error) { + // fdopendir(3) takes control of the file descriptor, + // so use a dup. + fd2, call, err := fd.Dup() + if err != nil { + return 0, call, err + } + var dir uintptr + for { + dir, err = fdopendir(fd2) + if err != syscall.EINTR { + break + } + } + if err != nil { + syscall.Close(fd2) + return 0, "fdopendir", err + } + return dir, "", nil +} + +// Implemented in syscall/syscall_darwin.go. +// +//go:linkname fdopendir syscall.fdopendir +func fdopendir(fd int) (dir uintptr, err error) -- cgit v1.2.3