// inbound.
internal MsQuicStream(MsQuicConnection.State connectionState, SafeMsQuicStreamHandle streamHandle, QUIC_STREAM_OPEN_FLAGS flags)
{
_state.Handle = streamHandle;
_state.ConnectionState = connectionState;
_canRead = true;
_canWrite = !flags.HasFlag(QUIC_STREAM_OPEN_FLAGS.UNIDIRECTIONAL);
_started = true;
_stateHandle = GCHandle.Alloc(_state);
try
{
MsQuicApi.Api.SetCallbackHandlerDelegate(
_state.Handle,
s_streamDelegate,
GCHandle.ToIntPtr(_stateHandle));
}
catch
{
_stateHandle.Free();
throw;
}
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(
_state,
$"[Stream#{_state.GetHashCode()}] inbound {(_canWrite ? "bi" : "uni")}directional stream created " +
$"in Connection#{_state.ConnectionState.GetHashCode()}.");
}
}
// outbound.
internal MsQuicStream(MsQuicConnection.State connectionState, QUIC_STREAM_OPEN_FLAGS flags)
{
Debug.Assert(connectionState.Handle != null);
_canRead = !flags.HasFlag(QUIC_STREAM_OPEN_FLAGS.UNIDIRECTIONAL);
_canWrite = true;
_state.StateGCHandle = GCHandle.Alloc(_state);
if (!_canRead)
{
_state.ReadState = ReadState.Closed;
}
try
{
uint status = MsQuicApi.Api.StreamOpenDelegate(
connectionState.Handle,
flags,
s_streamDelegate,
GCHandle.ToIntPtr(_state.StateGCHandle),
out _state.Handle);
QuicExceptionHelpers.ThrowIfFailed(status, "Failed to open stream to peer.");
status = MsQuicApi.Api.StreamStartDelegate(_state.Handle, QUIC_STREAM_START_FLAGS.FAIL_BLOCKED);
QuicExceptionHelpers.ThrowIfFailed(status, "Could not start stream.");
}
catch
{
_state.Handle?.Dispose();
_state.StateGCHandle.Free();
throw;
}
if (!connectionState.TryAddStream(this))
{
_state.Handle?.Dispose();
_state.StateGCHandle.Free();
throw new ObjectDisposedException(nameof(QuicConnection));
}
_state.ConnectionState = connectionState;
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(
_state,
$"[Stream#{_state.GetHashCode()}] outbound {(flags.HasFlag(QUIC_STREAM_OPEN_FLAGS.UNIDIRECTIONAL) ? "uni" : "bi")}directional stream created " +
$"in Connection#{_state.ConnectionState.GetHashCode()}.");
}
}
