public override int Open(ReadOnlySpan <byte> path, ref FuseFileInfo fi)
{
if (verbosity > 5)
{
Console.WriteLine($"Open {path.GetString()} Flags={flagString(fi.flags)}");
}
int error = 0, level = 0;
var procs = ProcPath(path, ref error, ref level, mustExist: true, isADir: false);
if (error != 0)
{
Console.WriteLine($"Path gets error {error}");
return(-LibC.ENOENT);
}
var newFile = procs.Pop();
if (newFile.Item2 == null)
{
return(-LibC.ENOENT);
}
var fileRec = newFile.Item2;
var oldFile = fileRec;
var parentRec = procs.Pop();
if (parentRec.Item2 == null)
{
return(-LibC.ENOENT);
}
var par = parentRec.Item2;
if (par.MaintLevel)
{
return(-LibC.EPERM);
}
// O_TRUNC deletes the file, so we should delete it.
if ((fi.flags & LibC.O_TRUNC) != 0)
{
// Must delete the file
Console.WriteLine($"File Deleted: {newFile.Item2.Name.GetString()} id={newFile.Item2._id} Version={newFile.Item2.Version}");
fileDelete(newFile.Item2, DeleteTypes.TRUNC);
fileRec = NeoAssets.Mongo.NeoVirtFS.CreateNewFile(par._id, par.VolumeId, newFile.Item1, path, (mode_t)(uint)oldFile.Stat.st_mode);
fileRec.Version = oldFile.Version + 1;
NeoVirtFSCol.InsertOne(fileRec);
fi.flags |= LibC.O_CREAT; // Otherwise it won't create the file again
}
fi.fh = storeHandler(FileDescriptor.FileHandlerFactory(fileRec, db, bac, bvol));
var fds = DescriptorStore[fi.fh];
return(fds.Handler.Open(fds, fi.flags));
}
public override int Create(ReadOnlySpan <byte> path, mode_t mode, ref FuseFileInfo fi)
{
if (verbosity > 5)
{
Console.WriteLine($"Create {path.GetString()} Flags={flagString(fi.flags)}");
}
int error = 0, level = 0;
var procs = ProcPath(path, ref error, ref level, mustExist: false);
if (error != 0)
{
Console.WriteLine($"Path gets error {error}");
return(-LibC.ENOENT);
}
// New files are always cache files, but might have existing file that needs to be deleted
int version = 0;
var newFile = procs.Pop();
if (newFile.Item2 != null)
{
// Must delete the file
version = newFile.Item2.Version;
Console.WriteLine($"File Deleted: {newFile.Item2.Name.GetString()} id={newFile.Item2._id} Version={version}");
fileDelete(newFile.Item2, DeleteTypes.CREATE);
}
var parentRec = procs.Pop();
if (parentRec.Item2 == null)
{
return(-LibC.ENOENT);
}
var par = parentRec.Item2;
if (par.MaintLevel)
{
return(-LibC.EPERM);
}
// Create new record (new id) and insert
var newRec = NeoAssets.Mongo.NeoVirtFS.CreateNewFile(par._id, par.VolumeId, newFile.Item1, path, mode);
newRec.Version = version + 1;
NeoVirtFSCol.InsertOne(newRec);
//var filter = Builders<NeoAssets.Mongo.NeoVirtFS>.Filter.Eq(x => x._id, newRec._id);
//var insert = NeoVirtFSDeletedCol.ReplaceOneAsync(filter, newRec, options: new ReplaceOptions { IsUpsert = true });
Console.WriteLine($"File Created: {newRec.Name.GetString()} id={newRec._id}");
fi.fh = storeHandler(FileDescriptor.FileHandlerFactory(newRec, db, bac, bvol));
var fds = DescriptorStore[fi.fh];
return(fds.Handler.Create(fds, mode, fi.flags));
}