public static Version2 ReadAfterHeader(
DSHeader aHeader,
Hdf5Reader aReader,
long?aLocalMessageSize,
out long aBytes)
{
int
fDimCount = aHeader.Dimensionality;
long
fReadlength = (fDimCount * aReader.SuperBlock.SizeOfLengths);
Flags
fHeaderFlags = (Flags)aHeader.Flags;
bool
fHasMax = fHeaderFlags.HasFlag(Flags.HasMax);
if (fHasMax)
{
fReadlength *= 2;
}
if (aLocalMessageSize.HasValue && aLocalMessageSize.Value < fReadlength)
{
throw new ArgumentException("Specified Local Message Size not long enough");
}
DataSpaceType
fType;
switch (aHeader.Type)
{
case (byte)DataSpaceType.Scaler:
case (byte)DataSpaceType.Simple:
case (byte)DataSpaceType.Null:
fType = (DataSpaceType)aHeader.Type;
break;
default:
throw new System.IO.InvalidDataException("Unknown DataSpaceType");
}
aBytes = fReadlength;
Dimension[]
fDimensions = ReadDimensions(
aReader,
fHasMax,
fDimCount);
return(new Version2(fType, fDimensions));
}
public static Version1 ReadAfterHeader(
DSHeader aHeader,
Hdf5Reader aReader,
long?aLocalMessageSize,
out long aBytes)
{
int
fDimCount = aHeader.Dimensionality,
fBlockLength = (fDimCount * aReader.SuperBlock.SizeOfLengths);
long
fReadlength = (fDimCount * aReader.SuperBlock.SizeOfLengths) + sizeof(UInt32);
Flags
fHeaderFlags = (Flags)aHeader.Flags;
if (fHeaderFlags.HasFlag(Flags.HasPermutaions))
{
throw new NotSupportedException("Permutation index not supported");
}
bool
fHasMax = fHeaderFlags.HasFlag(Flags.HasMax);
if (fHasMax)
{
fReadlength += fBlockLength;
}
if (aLocalMessageSize.HasValue && aLocalMessageSize.Value < fReadlength)
{
throw new ArgumentException("Specified Local Message Size not long enough");
}
aReader.ReadUInt32(); //Read reserved byte
aBytes = fReadlength;
Dimension[] fDimensions = ReadDimensions(
aReader,
fHasMax,
fDimCount);
return(new Version1(DataSpaceType.Simple, fDimensions));
}
internal static Dataspace Read(
Hdf5Reader aReader,
long?aLocalMessageSize,
out long aBytes)
{
if (aLocalMessageSize.HasValue && aLocalMessageSize.Value < DSHeader.Size)
{
throw new ArgumentException("Specified Local Message Size not long enough");
}
DSHeader
fHeader = DSHeader.Read(aReader);
long
fMessageBodySize;
Dataspace
fToRetrun;
long?
fBodySize = aLocalMessageSize.HasValue
? (long?)aLocalMessageSize.Value - DSHeader.Size
: null;
switch (fHeader.Version)
{
case 1:
fToRetrun = Version1.ReadAfterHeader(
fHeader,
aReader,
fBodySize,
out fMessageBodySize);
break;
case 2:
fToRetrun = Version2.ReadAfterHeader(
fHeader,
aReader,
fBodySize,
out fMessageBodySize);
break;
default:
throw new UnknownMessageVersion <Dataspace>(fHeader.Version);
}
aBytes = DSHeader.Size + fMessageBodySize;
return(fToRetrun);
}
