//Outgoing
internal Http2Stream(int id, WriteQueue writeQueue, FlowControlManager flowCrtlManager, int priority = Constants.DefaultStreamPriority)
{
if (id <= 0)
throw new ArgumentOutOfRangeException("invalid id for stream");
if (priority < 0 || priority > Constants.MaxPriority)
throw new ArgumentOutOfRangeException("priority out of range");
_id = id;
Priority = priority;
_writeQueue = writeQueue;
_flowCrtlManager = flowCrtlManager;
_unshippedFrames = new Queue<DataFrame>(16);
Headers = new HeadersList();
SentDataAmount = 0;
ReceivedDataAmount = 0;
IsFlowControlBlocked = false;
IsFlowControlEnabled = _flowCrtlManager.IsFlowControlEnabled;
WindowSize = _flowCrtlManager.StreamsInitialWindowSize;
_flowCrtlManager.NewStreamOpenedHandler(this);
OnFrameSent += (sender, args) => FramesSent++;
}
//Incoming
internal Http2Stream(HeadersList headers, int id,
WriteQueue writeQueue, FlowControlManager flowCrtlManager,
ICompressionProcessor comprProc, int priority = Constants.DefaultStreamPriority)
: this(id, writeQueue, flowCrtlManager, comprProc, priority)
{
if (headers == null)
throw new ArgumentNullException("cannot create stream with null headers");
Headers = headers;
}
//Incoming
internal Http2Stream(HeadersList headers, int id,
WriteQueue writeQueue, FlowControlManager flowCrtlManager, int priority = Constants.DefaultStreamPriority)
: this(id, writeQueue, flowCrtlManager, priority)
{
Headers = headers;
}
public Http2Session(Stream stream, ConnectionEnd end,
bool usePriorities, bool useFlowControl, bool isSecure,
CancellationToken cancel,
int initialWindowSize = Constants.InitialFlowControlWindowSize,
int maxConcurrentStreams = Constants.DefaultMaxConcurrentStreams)
{
if (stream == null)
throw new ArgumentNullException("stream is null");
if (cancel == null)
throw new ArgumentNullException("cancellation token is null");
if (maxConcurrentStreams <= 0)
throw new ArgumentOutOfRangeException("maxConcurrentStreams cant be less or equal then 0");
if (initialWindowSize <= 0 && useFlowControl)
throw new ArgumentOutOfRangeException("initialWindowSize cant be less or equal then 0");
_ourEnd = end;
_usePriorities = usePriorities;
_useFlowControl = useFlowControl;
_isSecure = isSecure;
_cancelSessionToken = cancel;
if (_ourEnd == ConnectionEnd.Client)
{
_remoteEnd = ConnectionEnd.Server;
_lastId = -1; // Streams opened by client are odd
//if we got unsecure connection then server will respond with id == 1. We cant initiate
//new stream with id == 1.
if (!(stream is SslStream))
{
_lastId = 3;
}
}
else
{
_remoteEnd = ConnectionEnd.Client;
_lastId = 0; // Streams opened by server are even
}
_goAwayReceived = false;
_comprProc = new CompressionProcessor(_ourEnd);
_ioStream = stream;
_frameReader = new FrameReader(_ioStream);
ActiveStreams = new ActiveStreams();
_writeQueue = new WriteQueue(_ioStream, ActiveStreams, _comprProc, _usePriorities);
OurMaxConcurrentStreams = maxConcurrentStreams;
RemoteMaxConcurrentStreams = maxConcurrentStreams;
InitialWindowSize = initialWindowSize;
_flowControlManager = new FlowControlManager(this);
if (!_useFlowControl)
{
_flowControlManager.Options = (byte) FlowControlOptions.DontUseFlowControl;
}
SessionWindowSize = 0;
_headersSequences = new HeadersSequenceList();
_promisedResources = new Dictionary<int, string>();
}