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cmount: implement no-ops for Fsync, Chmod, Chown, Access, Fsyncdir and stop using fuse.FileSystemBase

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This commit is contained in:
Nick Craig-Wood 2017-05-09 13:59:21 +01:00
parent c887c164dc
commit 31f76aa464
1 changed files with 80 additions and 2 deletions
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82
cmd/cmount/fs.go
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@ -19,7 +19,6 @@ const fhUnset = ^uint64(0)
// FS represents the top level filing system
type FS struct {
fuse.FileSystemBase
FS *mountlib.FS
f fs.Fs
openDirs *openFiles
@ -544,8 +543,87 @@ func (fsys *FS) Utimens(path string, tmsp []fuse.Timespec) (errc int) {
return translateError(err)
}
// Mknod creates a file node.
func (fsys *FS) Mknod(path string, mode uint32, dev uint64) (errc int) {
defer fs.Trace(path, "mode=0x%X, dev=0x%X", mode, dev)("errc=%d", &errc)
return -fuse.ENOSYS
}
// Fsync synchronizes file contents.
func (fsys *FS) Fsync(path string, datasync bool, fh uint64) (errc int) {
defer fs.Trace(path, "datasync=%v, fh=0x%X", datasync, fh)("errc=%d", &errc)
// This is a no-op for rclone
return 0
}
// Link creates a hard link to a file.
func (fsys *FS) Link(oldpath string, newpath string) (errc int) {
defer fs.Trace(oldpath, "newpath=%q", newpath)("errc=%d", &errc)
return -fuse.ENOSYS
}
// Symlink creates a symbolic link.
func (fsys *FS) Symlink(target string, newpath string) (errc int) {
defer fs.Trace(target, "newpath=%q", newpath)("errc=%d", &errc)
return -fuse.ENOSYS
}
// Readlink reads the target of a symbolic link.
func (fsys *FS) Readlink(path string) (errc int, linkPath string) {
defer fs.Trace(path, "")("linkPath=%q, errc=%d", &linkPath, &errc)
return -fuse.ENOSYS, ""
}
// Chmod changes the permission bits of a file.
func (fsys *FS) Chmod(path string, mode uint32) (errc int) {
defer fs.Trace(path, "mode=0%o", mode)("errc=%d", &errc)
// This is a no-op for rclone
return 0
}
// Chown changes the owner and group of a file.
func (fsys *FS) Chown(path string, uid uint32, gid uint32) (errc int) {
defer fs.Trace(path, "uid=%d, gid=%d", uid, gid)("errc=%d", &errc)
// This is a no-op for rclone
return 0
}
// Access checks file access permissions.
func (fsys *FS) Access(path string, mask uint32) (errc int) {
defer fs.Trace(path, "mask=0%o", mask)("errc=%d", &errc)
// This is a no-op for rclone
return 0
}
// Fsyncdir synchronizes directory contents.
func (fsys *FS) Fsyncdir(path string, datasync bool, fh uint64) (errc int) {
defer fs.Trace(path, "datasync=%v, fh=0x%X", datasync, fh)("errc=%d", &errc)
// This is a no-op for rclone
return 0
}
// Setxattr sets extended attributes.
func (fsys *FS) Setxattr(path string, name string, value []byte, flags int) (errc int) {
return -fuse.ENOSYS
}
// Getxattr gets extended attributes.
func (fsys *FS) Getxattr(path string, name string) (errc int, value []byte) {
return -fuse.ENOSYS, nil
}
// Removexattr removes extended attributes.
func (fsys *FS) Removexattr(path string, name string) (errc int) {
return -fuse.ENOSYS
}
// Listxattr lists extended attributes.
func (fsys *FS) Listxattr(path string, fill func(name string) bool) (errc int) {
return -fuse.ENOSYS
}
// Translate errors from mountlib
func translateError(err error) int {
func translateError(err error) (errc int) {
if err == nil {
return 0
}