public Task WriteAsPacketsAsync(
Stream stream,
ushort packetLength,
ushort spid,
CancellationToken cancellationToken,
TDSStatus status = TDSStatus.Normal,
TDSMessageType?overrideMessageType = null)
{
return(TDSPacket.WriteMessageAsync(stream, packetLength, spid, this, cancellationToken, status, overrideMessageType));
}
public static async Task WriteMessageAsync(
Stream stream,
ushort packetLength,
ushort spid,
TDSMessage message,
CancellationToken cancellationToken,
TDSStatus status = TDSStatus.Normal,
TDSMessageType?overrideMessageType = null)
{
status &= ~TDSStatus.EndOfMessage;
message.EnsurePayload();
var payload = message.Payload;
var packet = new byte[Math.Min(payload.Length + HeaderLength, packetLength)];
int payloadOffset = 0;
int maxPacketPayload = packetLength - HeaderLength;
var messageType = overrideMessageType ?? message.MessageType;
byte packetId = 1;
while (payloadOffset < payload.Length)
{
ushort thisPayloadLength = (ushort)Math.Min(payload.Length - payloadOffset, maxPacketPayload);
ushort thisPacketLength = (ushort)(thisPayloadLength + HeaderLength);
if (payloadOffset + thisPayloadLength >= payload.Length)
{
status |= TDSStatus.EndOfMessage;
}
packet[0] = (byte)messageType;
packet[1] = (byte)status;
packet[2] = (byte)((thisPacketLength >> 8) & 0xff);
packet[3] = (byte)(thisPacketLength & 0xff);
packet[4] = (byte)((spid >> 8) & 0xff);
packet[5] = (byte)(spid & 0xff);
packet[6] = packetId++;
packet[7] = 0;
Buffer.BlockCopy(payload, payloadOffset, packet, HeaderLength, thisPayloadLength);
await stream.WriteAsync(packet, 0, thisPacketLength, cancellationToken);
if (DumpPackets)
{
log.DebugFormat("Wrote {0} packet. Data:\r\n{1}", messageType, packet.FormatAsHex());
}
payloadOffset += thisPayloadLength;
}
}
public static Task WriteMessageAsync(
Stream stream, ushort packetLength, ushort spid, TDSMessage message, TDSStatus status = TDSStatus.Normal, TDSMessageType?overrideMessageType = null)
{
return(WriteMessageAsync(stream, packetLength, spid, message, CancellationToken.None, status, overrideMessageType));
}
public static void WriteMessage(
Stream stream, ushort packetLength, ushort spid, TDSMessage message, TDSStatus status = TDSStatus.Normal, TDSMessageType?overrideMessageType = null)
{
WriteMessageAsync(stream, packetLength, spid, message, status, overrideMessageType).Wait();
}
public void WriteAsPackets(Stream stream, ushort packetLength, ushort spid, TDSStatus status = TDSStatus.Normal, TDSMessageType?overrideMessageType = null)
{
TDSPacket.WriteMessage(stream, packetLength, spid, this, status, overrideMessageType);
}
