public void SendBlob(string destID, int contractID, IMessage body, int blobSize = 1024)
{
List <MessagePacket> packets = new List <MessagePacket>();
byte[] buffer = body.ToByteArray();
int blobLength = buffer.Length / blobSize;
if (blobLength != 0 && buffer.Length % blobLength > 0)
{
blobLength++;
}
int blobID = MessageIDCreater.GetNewID();
if (blobLength == 0)
{
BlobContract contract = new BlobContract()
{
BlobID = blobID,
FragmentIndex = 0,
Fragment = ByteString.CopyFrom(buffer),
IsLast = true
};
packets.Add(new MessagePacket(GloblParams.CurrentClientID, destID,
GloblParams.CurrentClientType, MessageType.Blob, contractID, contract.ToByteArray()));
}
else
{
for (int i = 0; i < blobLength; i++)
{
int startIndex = i * blobSize;
int endIndex = ((i + 1) * blobSize) > buffer.Length ? buffer.Length : ((i + 1) * blobSize);
int length = endIndex - startIndex;
byte[] sendBuffer = new byte[length];
System.Buffer.BlockCopy(buffer, startIndex, sendBuffer, 0, length);
BlobContract contract = new BlobContract()
{
BlobID = blobID,
FragmentIndex = i,
Fragment = ByteString.CopyFrom(sendBuffer),
IsLast = i == blobLength
};
packets.Add(new MessagePacket(GloblParams.CurrentClientID, destID,
GloblParams.CurrentClientType, MessageType.Blob, contractID, contract.ToByteArray()));
}
}
messageBus.SendMessage(packets);
}
public MessagePacket(string userID, string destID, ClientType clientType, byte messsageType, int contractID, byte[] body = null)
{
this.BodyContent = body;
this.ContractID = contractID;
int bodyLen = BodyContent == null ? 4 : BodyContent.Length + 4;
this.MessageHeader = new MessageHeader()
{
Client = (byte)clientType,
MessageBodyLen = bodyLen,
MessageType = messsageType,
MessageID = MessageIDCreater.GetNewID(),
SourceUserID = userID,
DestUserID = destID
};
}
