//this requires a seekable stream for now
public void Write(Type type, Array val)
{
Type elemType = type.GetElementType();
//TODO: more fast paths for primitive arrays
if (elemType == typeof(byte))
{
Write((uint)val.Length);
stream.Write((byte[])val, 0, val.Length);
return;
}
Write((uint)0);
long lengthPos = stream.Position - 4;
//advance to the alignment of the element
WritePad(Protocol.GetAlignment(Signature.TypeToDType(elemType)));
long startPos = stream.Position;
foreach (object elem in val)
{
Write(elemType, elem);
}
long endPos = stream.Position;
stream.Position = lengthPos;
Write((uint)(endPos - startPos));
stream.Position = endPos;
}
//this requires a seekable stream for now
public void WriteArray(object obj, Type elemType)
{
Array val = (Array)obj;
//TODO: more fast paths for primitive arrays
if (elemType == typeof(byte))
{
if (val.Length > Protocol.MaxArrayLength)
{
throw new Exception("Array length " + val.Length + " exceeds maximum allowed " + Protocol.MaxArrayLength + " bytes");
}
Write((uint)val.Length);
stream.Write((byte[])val, 0, val.Length);
return;
}
long origPos = stream.Position;
Write((uint)0);
//advance to the alignment of the element
WritePad(Protocol.GetAlignment(Signature.TypeToDType(elemType)));
long startPos = stream.Position;
foreach (object elem in val)
{
Write(elemType, elem);
}
long endPos = stream.Position;
uint ln = (uint)(endPos - startPos);
stream.Position = origPos;
if (ln > Protocol.MaxArrayLength)
{
throw new Exception("Array length " + ln + " exceeds maximum allowed " + Protocol.MaxArrayLength + " bytes");
}
Write(ln);
stream.Position = endPos;
}
//this could be made generic to avoid boxing
public void GetValue(Type type, out Array val)
{
Type elemType = type.GetElementType();
uint ln;
GetValue(out ln);
//TODO: more fast paths for primitive arrays
if (elemType == typeof(byte))
{
byte[] valb = new byte[ln];
Array.Copy(data, pos, valb, 0, (int)ln);
val = valb;
pos += (int)ln;
return;
}
//advance to the alignment of the element
ReadPad(Protocol.GetAlignment(Signature.TypeToDType(elemType)));
int endPos = pos + (int)ln;
//List<T> vals = new List<T> ();
System.Collections.ArrayList vals = new System.Collections.ArrayList();
//while (stream.Position != endPos)
while (pos < endPos)
{
object elem;
//GetValue (Signature.TypeToDType (elemType), out elem);
GetValue(elemType, out elem);
vals.Add(elem);
}
if (pos != endPos)
{
throw new Exception("Read pos " + pos + " != ep " + endPos);
}
val = vals.ToArray(elemType);
//val = Array.CreateInstance (elemType.UnderlyingSystemType, vals.Count);
}
//this could be made generic to avoid boxing
public Array ReadArray(Type elemType)
{
uint ln = ReadUInt32();
if (ln > Protocol.MaxArrayLength)
{
throw new Exception("Array length " + ln + " exceeds maximum allowed " + Protocol.MaxArrayLength + " bytes");
}
//TODO: more fast paths for primitive arrays
if (elemType == typeof(byte))
{
byte[] valb = new byte[ln];
Array.Copy(data, pos, valb, 0, (int)ln);
pos += (int)ln;
return(valb);
}
//advance to the alignment of the element
ReadPad(Protocol.GetAlignment(Signature.TypeToDType(elemType)));
int endPos = pos + (int)ln;
//List<T> vals = new List<T> ();
System.Collections.ArrayList vals = new System.Collections.ArrayList();
//while (stream.Position != endPos)
while (pos < endPos)
{
vals.Add(ReadValue(elemType));
}
if (pos != endPos)
{
throw new Exception("Read pos " + pos + " != ep " + endPos);
}
return(vals.ToArray(elemType));
}
