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Implemented ReadDir

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This commit is contained in:
Yannick Ulrich 2023-02-19 14:49:53 +00:00
parent a5d70e373c
commit d04af07dbe
1 changed files with 68 additions and 1 deletions
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69
fuse/main.go
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@ -8,6 +8,7 @@ import (
"github.com/hanwen/go-fuse/v2/fs" "github.com/hanwen/go-fuse/v2/fs"
"github.com/hanwen/go-fuse/v2/fuse" "github.com/hanwen/go-fuse/v2/fuse"
"strconv" "strconv"
"strings"
) )
func (i *Device) HeartRateBytes() ([]byte, error) { func (i *Device) HeartRateBytes() ([]byte, error) {
@ -46,6 +47,9 @@ type ITNode struct {
fs.Inode fs.Inode
kind int kind int
Ino uint64 Ino uint64
lst []DirEntry
path string
} }
var properties = []ITProperty { var properties = []ITProperty {
@ -56,6 +60,8 @@ var properties = []ITProperty {
ITProperty{"version", 6, nil}, ITProperty{"version", 6, nil},
ITProperty{"address", 7, nil}, ITProperty{"address", 7, nil},
} }
var myfs *FS = nil;
var inodemap map[string]uint64 = nil;
var _ = (fs.NodeReaddirer)((*ITNode)(nil)) var _ = (fs.NodeReaddirer)((*ITNode)(nil))
@ -89,6 +95,36 @@ func (n *ITNode) Readdir(ctx context.Context) (fs.DirStream, syscall.Errno) {
} }
return fs.NewListDirStream(r), 0 return fs.NewListDirStream(r), 0
case 2:
// on device
files, _ := myfs.ReadDir(n.path)
r := make([]fuse.DirEntry, len(files))
n.lst = files
for ind, file := range files {
name := file.path[strings.LastIndex(file.path, "/")+1:]
ino := inodemap[file.path]
if ino == 0 {
ino = uint64(len(inodemap)) + 1
inodemap[file.path] = ino
}
if file.flags & 0b1 == 1 {
r[ind] = fuse.DirEntry{
Name: name,
Mode: fuse.S_IFDIR,
Ino : ino + 10,
}
} else {
r[ind] = fuse.DirEntry{
Name: name,
Mode: fuse.S_IFREG,
Ino : ino + 10,
}
}
}
return fs.NewListDirStream(r), 0
} }
r := make([]fuse.DirEntry, 0) r := make([]fuse.DirEntry, 0)
return fs.NewListDirStream(r), 0 return fs.NewListDirStream(r), 0
@ -112,7 +148,7 @@ func (n *ITNode) Lookup(ctx context.Context, name string, out *fuse.EntryOut) (*
Mode: fuse.S_IFDIR, Mode: fuse.S_IFDIR,
Ino: uint64(1), Ino: uint64(1),
} }
operations := &ITNode{kind: 2, Ino: 1} operations := &ITNode{kind: 2, Ino: 1, path : ""}
child := n.NewInode(ctx, operations, stable) child := n.NewInode(ctx, operations, stable)
return child, 0 return child, 0
} }
@ -130,6 +166,34 @@ func (n *ITNode) Lookup(ctx context.Context, name string, out *fuse.EntryOut) (*
} }
} }
return nil, syscall.ENOENT return nil, syscall.ENOENT
case 2:
// FS object
for _, file := range n.lst {
if file.path != n.path + "/" + name {
continue;
}
log.Println("matched", name)
if file.flags & 0b1 == 1 {
stable := fs.StableAttr{
Mode: fuse.S_IFDIR,
Ino: inodemap[file.path],
}
operations := &ITNode{kind: 2, path: file.path}
child := n.NewInode(ctx, operations, stable)
return child, 0
} else {
stable := fs.StableAttr{
Mode: fuse.S_IFREG,
Ino: inodemap[file.path],
}
operations := &ITNode{kind: 2, path: file.path}
child := n.NewInode(ctx, operations, stable)
return child, 0
}
break;
}
} }
return nil, syscall.ENOENT return nil, syscall.ENOENT
} }
@ -202,6 +266,9 @@ func main() {
log.Printf("Mounted on %s", mntDir) log.Printf("Mounted on %s", mntDir)
log.Printf("Unmount by calling 'fusermount -u %s'", mntDir) log.Printf("Unmount by calling 'fusermount -u %s'", mntDir)
myfs = &FS{};
inodemap = make(map[string]uint64)
// Wait until unmount before exiting // Wait until unmount before exiting
server.Wait() server.Wait()
} }