lib9p

commit 4e7a750c0706beff489848216ad32c9fc16f6fe3
parent 7d937ac1f9a78b13cfd84ebdd3a26d8024b77b10
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sun, 10 Sep 2023 07:52:31 +0900

update numfs

Diffstat:
M
cmd/numfs.go
 | 
37
++++++++++++++++---------------------

1 file changed, 16 insertions(+), 21 deletions(-)
diff --git a/cmd/numfs.go b/cmd/numfs.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"bytes"
 	"flag"
 	"fmt"
 	"io/fs"
@@ -16,14 +15,16 @@ import (
 var root *numFile
 
 func init() {
+	fsys := new(numFS)
 	root = &numFile{
+		fs:   fsys,
 		id:   -1,
 		text: "",
 		children: []*numFile{
-			&numFile{0, "0", nil},
-			&numFile{1, "1", nil},
-			&numFile{2, "2", nil},
-			&numFile{3, "3", nil},
+			&numFile{fsys, 0, "0", nil},
+			&numFile{fsys, 1, "1", nil},
+			&numFile{fsys, 2, "2", nil},
+			&numFile{fsys, 3, "3", nil},
 		},
 	}
 }
@@ -54,12 +55,15 @@ func (fsys *numFS) Open(name string) (lib9p.File, error) {
 }
 
 type numFile struct {
+	fs       *numFS
 	id       int
 	text     string
 	children []*numFile
 }
 
-func (f *numFile) Stat() (fs.FileInfo, error) {
+func (f *numFile) Fsys() lib9p.FS { return f.fs }
+
+func (f *numFile) Stat() (*lib9p.FileInfo, error) {
 	var stat lib9p.Stat
 	stat.Type = 0
 	stat.Dev = 0
@@ -117,26 +121,17 @@ func (f *numFile) PathName() string {
 	return f.text
 }
 
-func (f *numFile) ReadAt(p []byte, off int64) (n int, err error) {
-	return bytes.NewReader([]byte(f.text)).ReadAt(p, off)
-}
+func (f *numFile) Parent() (lib9p.File, error) { return root, nil }
 
-func (f *numFile) ReadDir(n int) ([]*lib9p.DirEntry, error) {
+func (f *numFile) Child() ([]lib9p.File, error) {
 	if f.id != -1 {
 		return nil, fmt.Errorf("not a directory")
 	}
-	if n < 0 {
-		n = len(root.children)
-	}
-	de := make([]*lib9p.DirEntry, n)
-	for i := 0; i < len(root.children) && i < n; i++ {
-		stat, err := root.children[i].Stat()
-		if err != nil {
-			return de, err
-		}
-		de[i] = &lib9p.DirEntry{stat.(*lib9p.FileInfo).Stat}
+	children := make([]lib9p.File, len(f.children))
+	for i, c := range f.children {
+		children[i] = c
 	}
-	return de, nil
+	return children, nil
 }
 
 var dFlag = flag.Bool("D", false, "Prints chatty message to the stderr.")