public override int MkDir(ReadOnlySpan <byte> path, mode_t mode)
{
if (verbosity > 5)
{
Console.WriteLine($"MkDir {path.GetString()} mode={mode}");
}
int error = 0, level = 0;
var procs = ProcPath(path, ref error, ref level, mustExist: false, isADir: true);
if (error != 0)
{
return(-LibC.ENOENT);
}
if (procs.Count < 2)
{
Console.WriteLine($"Mkdir - path < 2");
return(-LibC.EPERM);
}
var cNode = procs.Pop();
var inNode = procs.Pop();
if (cNode.Item2 != null)
{
return(-LibC.EEXIST); // File (or directory) already exists
}
if (inNode.Item2 == null)
{
return(-LibC.ENOENT); // SHouldn't happen (2nd level will get error)
}
var createIn = inNode.Item2;
if (createIn.MaintLevel)
{
return(-LibC.EPERM); // Nobody can create in the maintenance levels (Namespace levels)
}
var newRec = new NeoAssets.Mongo.NeoVirtFS()
{
_id = ObjectId.GenerateNewId(),
Content = NeoVirtFSContent.Dir(),
Stat = NeoVirtFSStat.DirDefault((uint)mode),
Name = cNode.Item1,
VolumeId = createIn.VolumeId,
ParentId = createIn._id,
MaintLevel = false,
}; // It will assign it's own objectId _id
NeoVirtFSCol.InsertOne(newRec);
Console.WriteLine($"Create Directory {cNode.Item1.GetString()} id={newRec._id}");
return(0);
}
public static NeoVirtFS CreateDirectory(ObjectId parId, ObjectId volId, byte[] name, mode_t mode)
{
var newRec = new NeoVirtFS()
{
_id = ObjectId.GenerateNewId(),
Content = NeoVirtFSContent.Dir(),
Stat = NeoVirtFSStat.DirDefault((uint)mode),
Name = name,
VolumeId = volId,
ParentId = parId,
MaintLevel = false,
};
return(newRec);
}
public static ObjectId EnsureVolumeSetUpProperly(IMongoDatabase db, string volumeNamePath)
{
var HaveRoot = false;
var NamespaceNames = new Dictionary <string, NeoVirtFSNamespaces>();
var Namespaces = new Dictionary <ObjectId, NeoVirtFSNamespaces>();
NeoVirtFSNamespaces RootNameSpace = null;
var NeoVirtFSCol = db.NeoVirtFS();
var NeoVirtFSDeletedCol = db.NeoVirtFSDeleted();
var NeoVirtFSNamespacesCol = db.NeoVirtFSNamespaces();
var NeoVirtFSVolumesCol = db.NeoVirtFSVolumes();
var NeoVirtFSSecPrincipalsCol = db.NeoVirtFSSecPrincipals();
var NeoVirtFSSecACLsCol = db.NeoVirtFSSecACLs();
// Prepare for bulk update
var updates = new List <WriteModel <NeoVirtFS> >();
// Load up the namespaces -- there just shouldn't be too many of these
ProcessNamespaces(db, NamespaceNames, Namespaces, ref RootNameSpace, ref HaveRoot, updates);
if (!HaveRoot)
{
throw new ApplicationException("Volume Namespaces don't define a Root - Setup Issue");
}
// Now do volumes
var(parentPath, VolumeName) = FindVolumeNameWithPath(volumeNamePath, Namespaces, RootNameSpace);
if (parentPath == null) // We won't really get here - the above will throw
{
throw new ArgumentException($"Volume Path Not Valid: {volumeNamePath}");
}
// So we actually need to create this volume into NeoVirtFSVolumes, which unfortunately needs business logic
// We need some sort of policy for this. Maybe we're overthinking. Maybe we just need to be passed the path so we
// don't need to decide? We have the Namespaces above so we can decode
var volume = NeoVirtFSVolumesCol.FindSync(Builders <NeoVirtFSVolumes> .Filter.Eq(x => x.Name, VolumeName)).FirstOrDefault();
if (volume == null)
{
Console.WriteLine($"[Create Volume {VolumeName} into Namespace {parentPath.NameSpace}]");
var newNode = ObjectId.GenerateNewId();
// If the namespace moved then this isn't going to change it, though we may assert below
NeoVirtFSVolumesCol.InsertOne(new NeoVirtFSVolumes()
{
_id = newNode,
Name = VolumeName,
NameSpace = parentPath._id,
NodeId = newNode, // These are intentionally the same
VolumeDefaultACL = null,
ImportLocked = false,
VolumeLocked = false,
});
}
// This is only going to return our one volume (which we may have just created)
var volFilter = Builders <NeoVirtFSVolumes> .Filter.Eq(x => x.Name, VolumeName);
var v = NeoVirtFSVolumesCol.FindSync(volFilter).FirstOrDefault();
// This is making sure that the NeoVirtFS elements match the Volume setup (they use the same keys for clarity)
Console.WriteLine($"Volume: {v.Name}, NameSpace: {Namespaces[v.NameSpace].NameSpace}");
// Assert if the namespace has moved - We can just move it
if (v.NameSpace != parentPath._id)
{
Console.WriteLine($"Volume Namespace {Namespaces[v.NameSpace].NameSpace} is not same as current Namespace {Namespaces[parentPath._id].NameSpace}");
v.NameSpace = parentPath._id; // Just move the node to the correct place within namespaces
// And do it in the table (not bulk)
var fixPar = new UpdateDefinitionBuilder <NeoVirtFSVolumes>()
.Set("NameSpace", parentPath._id);
NeoVirtFSVolumesCol.UpdateOne(volFilter, fixPar);
}
// Ensure that the filesystem nodes exist at the top level
FilterDefinition <NeoVirtFS> filter = Builders <NeoAssets.Mongo.NeoVirtFS> .Filter.Eq(x => x._id, v._id);
var upd = new UpdateDefinitionBuilder <NeoAssets.Mongo.NeoVirtFS>()
.Set("_id", v._id)
.SetOnInsert("Content", NeoVirtFSContent.Dir())
.SetOnInsert("Stat", NeoVirtFSStat.DirDefault())
.Set("VolumeId", v.NameSpace)
.Set("ParentId", Namespaces[v.NameSpace]._id) // Set's see what root does - this will also move the Node to match the Volume
.Set("Name", Encoding.UTF8.GetBytes(v.Name))
.Set("MaintLevel", false); // This is the volume level - users can do stuff here (by their policy)
UpdateOneModel <NeoVirtFS> update = new UpdateOneModel <NeoAssets.Mongo.NeoVirtFS>(filter, upd)
{
IsUpsert = true
};
updates.Add(update);
// Persist
NeoVirtFSCol.BulkWrite(updates);
return(v._id);
}
public static bool PullNamespacesAndVolumes(IMongoDatabase db,
ref Dictionary <string, NeoVirtFSNamespaces> NamespaceNames,
ref Dictionary <ObjectId, NeoVirtFSNamespaces> Namespaces,
ref NeoVirtFSNamespaces RootNameSpace)
{
bool HaveRoot = false;
var NeoVirtFSCol = db.NeoVirtFS();
var NeoVirtFSDeletedCol = db.NeoVirtFSDeleted();
var NeoVirtFSNamespacesCol = db.NeoVirtFSNamespaces();
var NeoVirtFSVolumesCol = db.NeoVirtFSVolumes();
var NeoVirtFSSecPrincipalsCol = db.NeoVirtFSSecPrincipals();
var NeoVirtFSSecACLsCol = db.NeoVirtFSSecACLs();
// Prepare for bulk update
var updates = new List <WriteModel <NeoAssets.Mongo.NeoVirtFS> >();
// Load up the namespaces -- there just shouldn't be too many of these
var nCount = ProcessNamespaces(db, NamespaceNames, Namespaces, ref RootNameSpace, ref HaveRoot, updates);
if (!HaveRoot)
{
throw new ApplicationException("Volume Namespaces don't define a Root - Setup Issue");
}
// Now do volumes
int vCount = 0;
var volumes = NeoVirtFSVolumesCol.FindSync(Builders <NeoVirtFSVolumes> .Filter.Empty).ToList();
foreach (var v in volumes)
{
//Console.WriteLine($"Volume: {v.Name}");
vCount++;
// Ensure that the filesystem nodes exist at the top level
FilterDefinition <NeoVirtFS> filter = Builders <NeoAssets.Mongo.NeoVirtFS> .Filter.Eq(x => x._id, v._id);
var upd = new UpdateDefinitionBuilder <NeoAssets.Mongo.NeoVirtFS>()
.Set("_id", v._id)
.SetOnInsert("Content", NeoVirtFSContent.Dir())
.SetOnInsert("Stat", NeoVirtFSStat.DirDefault())
.Set("VolumeId", v.NameSpace)
.Set("ParentId", Namespaces[v.NameSpace]._id) // Set's see what root does
.Set("Name", Encoding.UTF8.GetBytes(v.Name))
.Set("MaintLevel", false); // This is the volume level - users can do stuff here (by their policy)
UpdateOneModel <NeoVirtFS> update = new UpdateOneModel <NeoAssets.Mongo.NeoVirtFS>(filter, upd)
{
IsUpsert = true
};
updates.Add(update);
}
Console.WriteLine($"[Loaded {nCount} Namespaces and {vCount} Volumes]");
// Persist
NeoVirtFSCol.BulkWrite(updates);
return(HaveRoot);
}