lib9p

commit 3cceefb8a5379b67319a7c61118f335e8028f828
parent ba9d2e2f6b0ab6ae793ed9581b80bdb11ed35f6e
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sun, 15 Oct 2023 08:16:09 +0900

add open check

Diffstat:
M
file.go
 | 
10
+++++++++-

1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/file.go b/file.go
@@ -106,6 +106,7 @@ func (cf *ClientFile) Child() ([]File, error) {
 		if err := cf.Open(OREAD); err != nil {
 			return nil, fmt.Errorf("open: %v", err)
 		}
+		defer cf.Close()
 	}
 	if cf.qid.Type&QTDIR == 0 {
 		return nil, fmt.Errorf("not a directory")
@@ -143,8 +144,8 @@ func (cf *ClientFile) Stat() (*FileInfo, error) {
 		if err := cf.Open(OREAD); err != nil {
 			return nil, fmt.Errorf("open: %v", err)
 		}
+		defer cf.Close()
 	}
-	defer cf.Close()
 	st, err := cf.client.Stat(context.TODO(), cf.fid.fid)
 	if err != nil {
 		return nil, err
@@ -153,6 +154,10 @@ func (cf *ClientFile) Stat() (*FileInfo, error) {
 }
 
 func (cf *ClientFile) Qid() Qid {
+	if cf.fid == nil {
+		cf.Open(OREAD)
+		defer cf.Close()
+	}
 	return cf.qid
 }
 
@@ -186,6 +191,9 @@ func (cf *ClientFile) Close() error {
 }
 
 func (cf *ClientFile) Read(b []byte) (int, error) {
+	if cf.fid == nil {
+		return 0, fmt.Errorf("not open")
+	}
 	count := uint32(len(b))
 	cur := 0
 	for count > 0 {