public Factory(int classCount, RoleMappedData data, CursOpt opt = CursOpt.Label)
: base(data, opt)
{
// Zero means that any non-negative integer value is fine.
Contracts.CheckParamValue(classCount >= 0, classCount, nameof(classCount), "Must be non-negative");
_classCount = classCount;
}
public override int Read(byte[] buffer, int offset, int count)
{
Contracts.CheckValue(buffer, nameof(buffer));
Contracts.CheckParamValue(offset >= 0, offset, nameof(offset), "Must be non-negative value");
Contracts.CheckParamValue(offset < buffer.Length, offset, nameof(offset), "Must be greater than buffer length");
Contracts.CheckParamValue(count >= 0, count, nameof(count), "Must be non-negative value");
Contracts.CheckParamValue(count <= buffer.Length - offset, count, nameof(count),
"Must or equal than difference between buffer length and offset");
if (count == 0)
{
return(0);
}
unsafe
{
fixed(byte *pInput = &_buffer[0])
fixed(byte *pOutput = &buffer[offset])
{
return(InternalRead(pInput, pOutput, count));
}
}
throw Contracts.Except("Bad offset {0} and count {1} for length {2} buffer", offset, count, buffer.Length);
}
public override void Write(byte[] buffer, int offset, int count)
{
Contracts.CheckValue(buffer, nameof(buffer));
Contracts.CheckParamValue(offset >= 0, offset, nameof(offset), "offset can't be negative value");
Contracts.CheckParamValue(offset < buffer.Length, offset, nameof(offset), "offset can't be greater than buffer length");
Contracts.CheckParamValue(count >= 0, count, nameof(count), "count can't be negative value");
Contracts.CheckParamValue(count <= buffer.Length - offset, count, nameof(count),
"count should be less or equal than difference between buffer length and offset");
int length = buffer.Length;
if (count == 0)
{
return;
}
unsafe
{
fixed(byte *pOutput = &_buffer[0])
fixed(byte *pInput = &buffer[offset])
{
RawWrite(pInput, pOutput, count);
}
}
}
public ListDataSource(IList <TInput> collection)
{
Contracts.CheckParamValue(Utils.Size(collection) > 0, collection, nameof(collection), "Must be non-empty");
_listCollection = collection;
}
