/// <summary>
/// Deflate the token
/// </summary>
/// <param name="destination">Stream to deflate token to</param>
public override void Deflate(Stream destination)
{
// Write token identifier
destination.WriteByte((byte)TDSTokenType.SessionState);
// Allocate a temporary memory stream
MemoryStream memoryStream = new MemoryStream();
// Iterate through all option
foreach (TDSSessionStateOption option in Options)
{
// Deflate into the memory stream to calcualte the overall length
option.Deflate(memoryStream);
}
// Write the length
TDSUtilities.WriteUInt(destination, (uint)(memoryStream.Length + sizeof(uint) /* Sequence Number */ + sizeof(byte) /* Status */ + memoryStream.Length));
// Write sequence number
TDSUtilities.WriteUInt(destination, (uint)SequenceNumber);
// Write status
destination.WriteByte((byte)(IsRecoverable ? 1 : 0));
// Write the options
memoryStream.WriteTo(destination);
}
/// <summary>
/// Deflate the token
/// </summary>
/// <param name="destination">Stream to deflate token to</param>
public override void Deflate(Stream destination)
{
// Allocate temporary cache
MemoryStream cache = new MemoryStream();
// Write header type
TDSUtilities.WriteUShort(cache, (ushort)TDSHeaderType.Trace);
byte[] guidBytes = new byte[16];
// Check if activity ID is available
if (ActivityID != null)
{
guidBytes = ActivityID.ToByteArray();
}
// Write trace identifier
cache.Write(guidBytes, 0, guidBytes.Length);
// Write activity identifier
TDSUtilities.WriteUInt(cache, SequenceNumber);
// Write the header length including self into the destination
TDSUtilities.WriteUInt(destination, (uint)(cache.Length + 4));
// Write cached header data
cache.WriteTo(destination);
}
/// <summary>
/// Delate the token.
/// </summary>
/// <param name="destination">Stream the token to deflate to.</param>
public override void Deflate(Stream destination)
{
// Write FeatureID
destination.WriteByte((byte)FeatureID);
// Write FeatureAckDataLen
TDSUtilities.WriteUInt(destination, FeatureAckDataLen);
// Write data.
destination.Write(FeatureAckData, 0, (int)FeatureAckDataLen);
}
/// <summary>
/// Write raw data
/// </summary>
protected void DeflateValue(Stream destination, byte[] value)
{
// Check length
if (value != null && value.Length >= 0xFF)
{
// Write the prefix to indicate a DWORD length
destination.WriteByte(0xFF);
// Length is DWORD
TDSUtilities.WriteUInt(destination, (uint)value.Length);
}
else
{
// Length is byte
destination.WriteByte((byte)value.Length);
}
// Serialize the data itself
if (value != null)
{
destination.Write(value, 0, value.Length);
}
}
