/// <summary>
/// Process a chip object table message from the server.
/// </summary>
/// <param name="copyData">received message</param>
/// <remarks>
/// Returns the message contents to the client application by callback.
/// </remarks>
private void ProcessChipObjectTable(ref CopyData copyData)
{
// debug info
OutputDebugString("processChipObjectTable");
// message parsing variables
byte[] buffer = null;
buffer = this.GetBufferFromCopyData(ref copyData);
int index = 0;
// message format:
// byte: flag: operation succeeded
// then: multiple instances of the following:
// ushort: object type
// ushort: object start position
// ushort: object size
// ushort: number of object instances
// ushort: number of report IDs per instance
// parse message
byte operationSucceeded = this.GetByte(ref buffer, ref index);
// parse operation success/failure from message payload
bool operationSucceededFlag = false;
if (operationSucceeded == 0)
{
operationSucceededFlag = true;
}
// calculate number of object table elements in the received data
int bufferSize = buffer.Length;
int numObjectTableElements = (bufferSize - 1) / ObjectTableElement.OBJECT_TABLE_ELEMENT_SIZE;
// create object table
ObjectTableElement[] objectTable = new ObjectTableElement[numObjectTableElements];
// parse object table from message
for (int i = 0; i < numObjectTableElements; i++)
{
// build object table element
ObjectTableElement objectTableElement = new ObjectTableElement();
objectTableElement.type = this.GetUshort(ref buffer, ref index);
objectTableElement.start_position = this.GetUshort(ref buffer, ref index);
objectTableElement.size = this.GetUshort(ref buffer, ref index);
objectTableElement.instances = this.GetUshort(ref buffer, ref index);
objectTableElement.num_report_ids_per_instance = this.GetUshort(ref buffer, ref index);
// save object table element
objectTable[i] = objectTableElement;
}
// trigger chip object table event
this.NotifyChipObjectTable(operationSucceededFlag, ref objectTable);
}
/// <summary>
/// handle chip object table events
/// </summary>
/// <param name="operationSucceeded">flag: the operation succeeded</param>
/// <param name="objectTable">the chip object table</param>
private void NotifyChipObjectTable(bool operationSucceeded, ref ObjectTableElement[] objectTable)
{
if (this.chipObjectTable != null)
{
this.chipObjectTable(operationSucceeded, ref objectTable);
}
}