// By Morten Kvistgaard
public virtual byte[] GetEncodedTrends(uint start, int count, out BacnetResultFlags status)
{
status = BacnetResultFlags.NONE;
start--; //position is 1 based
if (start >= m_PROP_RECORD_COUNT || (start + count) > m_PROP_RECORD_COUNT)
{
return(null);
}
if (start == 0)
{
status |= BacnetResultFlags.FIRST_ITEM;
}
if ((start + count) >= m_PROP_RECORD_COUNT)
{
status |= BacnetResultFlags.LAST_ITEM;
}
else
{
status |= BacnetResultFlags.MORE_ITEMS;
}
System.IO.BACnet.Serialize.EncodeBuffer buffer = new System.IO.BACnet.Serialize.EncodeBuffer();
int offset;
if (m_PROP_RECORD_COUNT < m_PROP_BUFFER_SIZE) // the buffer is not full
{
offset = 0;
}
else
{
offset = LogPtr; // circular buffer
}
for (uint i = start; i < (start + count); i++)
{
System.IO.BACnet.Serialize.Services.EncodeLogRecord(buffer, TrendBuffer[(offset + i) % TrendBuffer.Length]);
}
return(buffer.ToArray());
}
public void ReadRangeResponse(BacnetAddress adr, byte invoke_id, Segmentation segmentation, BacnetObjectId object_id, BacnetPropertyReference property, BacnetResultFlags status, uint item_count, byte[] application_data, BacnetReadRangeRequestTypes request_type, uint first_sequence_no)
{
SendComplexAck(adr, invoke_id, segmentation, BacnetConfirmedServices.SERVICE_CONFIRMED_READ_RANGE, (b) =>
{
Services.EncodeReadRangeAcknowledge(b, object_id, property.propertyIdentifier, property.propertyArrayIndex, BacnetBitString.ConvertFromInt((uint)status), item_count, application_data, request_type, first_sequence_no);
});
}
