func (s *BlockVolume) getOrCreateBlockINode(ref torus.INodeRef) (*models.INode, error) {
if ref.Volume() != torus.VolumeID(s.volume.Id) {
panic("ids managed by metadata didn't match, how is that possible?")
}
if ref.INode != 1 {
return s.srv.INodes.GetINode(s.getContext(), ref)
}
globals, err := s.mds.GlobalMetadata()
if err != nil {
}
bs, err := blockset.CreateBlocksetFromSpec(globals.DefaultBlockSpec, nil)
if err != nil {
return nil, err
}
nBlocks := (s.volume.MaxBytes / globals.BlockSize)
if s.volume.MaxBytes%globals.BlockSize != 0 {
nBlocks++
}
err = bs.Truncate(int(nBlocks), globals.BlockSize)
if err != nil {
return nil, err
}
inode := models.NewEmptyINode()
inode.INode = 1
inode.Volume = s.volume.Id
inode.Filesize = s.volume.MaxBytes
inode.Blocks, err = torus.MarshalBlocksetToProto(bs)
return inode, err
}
func marshalTest(t *testing.T, s torus.BlockStore, spec torus.BlockLayerSpec) {
b, err := CreateBlocksetFromSpec(spec, s)
if err != nil {
t.Fatal(err)
}
inode := torus.NewINodeRef(1, 1)
b.PutBlock(context.TODO(), inode, 0, []byte("Some data"))
marshal, err := torus.MarshalBlocksetToProto(b)
if err != nil {
t.Fatal(err)
}
b = nil
newb, err := UnmarshalFromProto(marshal, s)
if err != nil {
t.Fatal(err)
}
data, err := newb.GetBlock(context.TODO(), 0)
if err != nil {
t.Fatal(err)
}
if string(data) != "Some data" {
t.Error("data not retrieved")
}
}
func makeFile(name string, t *testing.T) (*torus.Server, *torus.File) {
srv := torus.NewMemoryServer()
vol := &models.Volume{
Name: name,
Id: 3,
Type: "test",
}
globals, err := srv.MDS.GlobalMetadata()
if err != nil {
t.Fatal(err)
}
bs, err := blockset.CreateBlocksetFromSpec(globals.DefaultBlockSpec, srv.Blocks)
if err != nil {
t.Fatal(err)
}
inode := models.NewEmptyINode()
inode.INode = 1
inode.Volume = vol.Id
inode.Blocks, err = torus.MarshalBlocksetToProto(bs)
f, err := srv.CreateFile(vol, inode, bs)
if err != nil {
t.Fatal(err)
}
return srv, f
}
