public FileNameBlock(BSAReader bsa, long position)
{
Names = new Lazy <ReadOnlyMemorySlice <byte>[]>(
mode: System.Threading.LazyThreadSafetyMode.ExecutionAndPublication,
valueFactory: () =>
{
using var stream = bsa.GetStream();
stream.BaseStream.Position = position;
ReadOnlyMemorySlice <byte> data = stream.ReadBytes(checked ((int)bsa._totalFileNameLength));
ReadOnlyMemorySlice <byte>[] names = new ReadOnlyMemorySlice <byte> [bsa._fileCount];
for (int i = 0; i < bsa._fileCount; i++)
{
var index = data.Span.IndexOf(default(byte));
if (index == -1)
{
throw new InvalidDataException("Did not end all of its strings in null bytes");
}
names[i] = data.Slice(0, index + 1);
var str = names[i].ReadStringTerm(bsa.HeaderType);
data = data.Slice(index + 1);
}
// Data doesn't seem to need to be fully consumed.
// Official BSAs have overflow of zeros
return(names);
});
}
public static BSAReader Load(AbsolutePath filename)
{
var bsa = new BSAReader {
_streamFactory = new NativeFileStreamFactory(filename)
};
using var rdr = bsa.GetStream();
bsa.LoadHeaders(rdr);
return(bsa);
}
