From 3f6186917992a61793a29240705b43562d5a31fb Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Fri, 15 Apr 2022 12:11:14 +0100
Subject: [PATCH] cmount: add tracing for *xattr FUSE callbacks

See: https://github.com/winfsp/cgofuse/issues/66
See: https://forum.rclone.org/t/cannot-copy-files-to-mounted-azure-storage-windows/30092
---
 cmd/cmount/fs.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmd/cmount/fs.go b/cmd/cmount/fs.go
index 553712b16..c097611b7 100644
--- a/cmd/cmount/fs.go
+++ b/cmd/cmount/fs.go
@@ -545,21 +545,25 @@ func (fsys *FS) Fsyncdir(path string, datasync bool, fh uint64) (errc int) {
 
 // Setxattr sets extended attributes.
 func (fsys *FS) Setxattr(path string, name string, value []byte, flags int) (errc int) {
+	defer log.Trace(path, "name=%q, value=%q, flags=%d", name, value, flags)("errc=%d", &errc)
 	return -fuse.ENOSYS
 }
 
 // Getxattr gets extended attributes.
 func (fsys *FS) Getxattr(path string, name string) (errc int, value []byte) {
+	defer log.Trace(path, "name=%q", name)("errc=%d, value=%q", &errc, &value)
 	return -fuse.ENOSYS, nil
 }
 
 // Removexattr removes extended attributes.
 func (fsys *FS) Removexattr(path string, name string) (errc int) {
+	defer log.Trace(path, "name=%q", name)("errc=%d", &errc)
 	return -fuse.ENOSYS
 }
 
 // Listxattr lists extended attributes.
 func (fsys *FS) Listxattr(path string, fill func(name string) bool) (errc int) {
+	defer log.Trace(path, "fill=%p", fill)("errc=%d", &errc)
 	return -fuse.ENOSYS
 }