Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 80 insertions, 0 deletions

diff --git a/src/os/dir_windows.go b/src/os/dir_windows.go
new file mode 100644
index 0000000..9dc2cd7
--- /dev/null
+++ b/src/os/dir_windows.go
@@ -0,0 +1,80 @@
+// Copyright 2009 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 os
+
+import (
+	"io"
+	"io/fs"
+	"runtime"
+	"syscall"
+)
+
+func (file *File) readdir(n int, mode readdirMode) (names []string, dirents []DirEntry, infos []FileInfo, err error) {
+	// If this file has no dirinfo, create one.
+	needdata := true
+	if file.dirinfo == nil {
+		needdata = false
+		file.dirinfo, err = openDir(file.name)
+		if err != nil {
+			err = &PathError{Op: "readdir", Path: file.name, Err: err}
+			return
+		}
+	}
+	wantAll := n <= 0
+	if wantAll {
+		n = -1
+	}
+	d := &file.dirinfo.data
+	for n != 0 && !file.dirinfo.isempty {
+		if needdata {
+			e := syscall.FindNextFile(file.dirinfo.h, d)
+			runtime.KeepAlive(file)
+			if e != nil {
+				if e == syscall.ERROR_NO_MORE_FILES {
+					break
+				} else {
+					err = &PathError{Op: "FindNextFile", Path: file.name, Err: e}
+					return
+				}
+			}
+		}
+		needdata = true
+		name := syscall.UTF16ToString(d.FileName[0:])
+		if name == "." || name == ".." { // Useless names
+			continue
+		}
+		if mode == readdirName {
+			names = append(names, name)
+		} else {
+			f := newFileStatFromWin32finddata(d)
+			f.name = name
+			f.path = file.dirinfo.path
+			f.appendNameToPath = true
+			if mode == readdirDirEntry {
+				dirents = append(dirents, dirEntry{f})
+			} else {
+				infos = append(infos, f)
+			}
+		}
+		n--
+	}
+	if !wantAll && len(names)+len(dirents)+len(infos) == 0 {
+		return nil, nil, nil, io.EOF
+	}
+	return names, dirents, infos, nil
+}
+
+type dirEntry struct {
+	fs *fileStat
+}
+
+func (de dirEntry) Name() string            { return de.fs.Name() }
+func (de dirEntry) IsDir() bool             { return de.fs.IsDir() }
+func (de dirEntry) Type() FileMode          { return de.fs.Mode().Type() }
+func (de dirEntry) Info() (FileInfo, error) { return de.fs, nil }
+
+func (de dirEntry) String() string {
+	return fs.FormatDirEntry(de)
+}