public bool TrySerialize(TEnum element, Span <byte> output, out int actualSize)
{
return(serializer.TrySerialize(
toFunc(element),
output,
out actualSize));
}
public override DatabaseBuilder AddArray <T, TKey>(
IConstSizeSerializer <T> serializer,
Func <Database, IEnumerable <T> > elements,
Func <T, TKey> selector,
IComparer <TKey>?comparer)
{
try
{
var headerPosition = stream.Position;
// write a dummy header
var dummyHeaderBytes = new ArrayHeader(serializer).AsBytes();
stream.Write(dummyHeaderBytes);
var elementLength = serializer.ElementSize;
Utility.EnsureArrayOfMinimalSize(ref buffer, elementLength);
long elementCount = 0;
var elementsEnumerable = elements(db);
if (comparer != null)
{
elementsEnumerable = elementsEnumerable.OrderBy(selector, comparer);
}
foreach (var element in elementsEnumerable)
{
serializer.TrySerialize(element, buffer.AsSpan(), out _);
stream.Write(buffer, 0, elementLength);
elementCount++;
}
var pastEndPosition = stream.Position;
stream.Seek(headerPosition, SeekOrigin.Begin);
var arrayHeader = new ArrayHeader(serializer)
{
OverallLength = elementLength * elementCount,
RecordCount = elementCount,
StartsAt = headerPosition + dummyHeaderBytes.Length,
EndsAt = pastEndPosition,
Type = 1
};
stream.Write(arrayHeader.AsBytes());
stream.Seek(pastEndPosition, SeekOrigin.Begin);
headers.Add(arrayHeader);
}
catch
{
stream.Dispose();
db.Dispose();
throw;
}
return(this);
}
