protected void InternalAddChannel(IDataChannel channel, int channelId)
{
var channelInfo = new DataChannelInfo(channel, channelId);
if (!_channels.TryAdd(channelId, channelInfo))
{
throw new InvalidOperationException("The channel id is already in use");
}
Logger.Debug("Add channel with id {channelId}", channelId);
channel.Send = (buffer, offset, count, hasOffset) => ChannelSendData(channelInfo, buffer, offset, count, hasOffset);
channel.RequiredOffset = _customOffset + 5;
}
private async Task ChannelSendData(DataChannelInfo channel, byte[] buffer, int offset, int count, bool hasOffset)
{
if (hasOffset)
{
BinaryUtils.WriteInt32(buffer, offset - 5, channel.ChannelId);
buffer[offset - 1] = (byte)(channel.IsSynchronized ? 1 : 0);
await _socket.SendFrameAsync(MazeSocket.MessageOpcode.Message,
new ArraySegment <byte>(buffer, offset - 5, count + 5), true, CancellationToken.None);
return;
}
using (var newBuffer = AllocateBuffer(count + 5))
{
BinaryUtils.WriteInt32(newBuffer.Buffer, newBuffer.Offset, channel.ChannelId);
newBuffer.Buffer[newBuffer.Offset + 4] = (byte)(channel.IsSynchronized ? 1 : 0);
Buffer.BlockCopy(buffer, offset, newBuffer.Buffer, newBuffer.Offset + 5, count);
await _socket.SendFrameAsync(MazeSocket.MessageOpcode.Message, new ArraySegment <byte>(newBuffer.Buffer, newBuffer.Offset, count + 5),
true, CancellationToken.None);
}
}
