Example #1
0
// FindStream looks up the given stream id and either waits for the
// stream to be found or returns nil if the stream id is no longer
// valid.
func (s *Connection) FindStream(streamId uint32) *Stream {
	var stream *Stream
	var ok bool
	s.streamCond.L.Lock()
	stream, ok = s.streams[spdy.StreamId(streamId)]
	debugMessage("(%p) Found stream %d? %t", s, spdy.StreamId(streamId), ok)
	for !ok && streamId >= uint32(s.receivedStreamId) {
		s.streamCond.Wait()
		stream, ok = s.streams[spdy.StreamId(streamId)]
	}
	s.streamCond.L.Unlock()
	return stream
}
Example #2
0
func (s *Connection) addStreamFrame(frame *spdy.SynStreamFrame) {
	var parent *Stream
	if frame.AssociatedToStreamId != spdy.StreamId(0) {
		parent, _ = s.getStream(frame.AssociatedToStreamId)
	}

	stream := &Stream{
		streamId:   frame.StreamId,
		parent:     parent,
		conn:       s,
		startChan:  make(chan error),
		headers:    frame.Headers,
		finished:   (frame.CFHeader.Flags & spdy.ControlFlagUnidirectional) != 0x00,
		replyCond:  sync.NewCond(new(sync.Mutex)),
		dataChan:   make(chan []byte),
		headerChan: make(chan http.Header),
		closeChan:  make(chan bool),
		priority:   frame.Priority,
	}
	if frame.CFHeader.Flags&spdy.ControlFlagFin != 0x00 {
		stream.closeRemoteChannels()
	}

	s.addStream(stream)
}
Example #3
0
func TestPriorityQueueOrdering(t *testing.T) {
	queue := NewPriorityFrameQueue(150)
	data1 := &spdy.DataFrame{}
	data2 := &spdy.DataFrame{}
	data3 := &spdy.DataFrame{}
	data4 := &spdy.DataFrame{}
	queue.Push(data1, 2)
	queue.Push(data2, 1)
	queue.Push(data3, 1)
	queue.Push(data4, 0)

	if queue.Pop() != data4 {
		t.Fatalf("Wrong order, expected data4 first")
	}
	if queue.Pop() != data2 {
		t.Fatalf("Wrong order, expected data2 second")
	}
	if queue.Pop() != data3 {
		t.Fatalf("Wrong order, expected data3 third")
	}
	if queue.Pop() != data1 {
		t.Fatalf("Wrong order, expected data1 fourth")
	}

	// Insert 50 Medium priority frames
	for i := spdy.StreamId(50); i < 100; i++ {
		queue.Push(&spdy.DataFrame{StreamId: i}, 1)
	}
	// Insert 50 low priority frames
	for i := spdy.StreamId(100); i < 150; i++ {
		queue.Push(&spdy.DataFrame{StreamId: i}, 2)
	}
	// Insert 50 high priority frames
	for i := spdy.StreamId(0); i < 50; i++ {
		queue.Push(&spdy.DataFrame{StreamId: i}, 0)
	}

	for i := spdy.StreamId(0); i < 150; i++ {
		frame := queue.Pop()
		if frame.(*spdy.DataFrame).StreamId != i {
			t.Fatalf("Wrong frame\nActual: %d\nExpecting: %d", frame.(*spdy.DataFrame).StreamId, i)
		}
	}
}
Example #4
0
func (s *Connection) sendStream(stream *Stream, fin bool) error {
	var flags spdy.ControlFlags
	if fin {
		flags = spdy.ControlFlagFin
		stream.finished = true
	}

	var parentId spdy.StreamId
	if stream.parent != nil {
		parentId = stream.parent.streamId
	}

	streamFrame := &spdy.SynStreamFrame{
		StreamId:             spdy.StreamId(stream.streamId),
		AssociatedToStreamId: spdy.StreamId(parentId),
		Headers:              stream.headers,
		CFHeader:             spdy.ControlFrameHeader{Flags: flags},
	}

	return s.framer.WriteFrame(streamFrame)
}
Example #5
0
func TestPriorityQueueSync(t *testing.T) {
	queue := NewPriorityFrameQueue(150)
	var wg sync.WaitGroup
	insertRange := func(start, stop spdy.StreamId, priority uint8) {
		for i := start; i < stop; i++ {
			queue.Push(&spdy.DataFrame{StreamId: i}, priority)
		}
		wg.Done()
	}
	wg.Add(3)
	go insertRange(spdy.StreamId(100), spdy.StreamId(150), 2)
	go insertRange(spdy.StreamId(0), spdy.StreamId(50), 0)
	go insertRange(spdy.StreamId(50), spdy.StreamId(100), 1)

	wg.Wait()
	for i := spdy.StreamId(0); i < 150; i++ {
		frame := queue.Pop()
		if frame.(*spdy.DataFrame).StreamId != i {
			t.Fatalf("Wrong frame\nActual: %d\nExpecting: %d", frame.(*spdy.DataFrame).StreamId, i)
		}
	}
}