Ejemplo n.º 1
0
func (t *http2Client) handleData(f *http2.DataFrame) {
	// Select the right stream to dispatch.
	s, ok := t.getStream(f)
	if !ok {
		return
	}
	size := len(f.Data())
	if size > 0 {
		if err := s.fc.onData(uint32(size)); err != nil {
			if _, ok := err.(ConnectionError); ok {
				t.notifyError(err)
				return
			}
			s.mu.Lock()
			if s.state == streamDone {
				s.mu.Unlock()
				return
			}
			s.state = streamDone
			s.statusCode = codes.Internal
			s.statusDesc = err.Error()
			s.mu.Unlock()
			s.write(recvMsg{err: io.EOF})
			t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
			return
		}
		// TODO(bradfitz, zhaoq): A copy is required here because there is no
		// guarantee f.Data() is consumed before the arrival of next frame.
		// Can this copy be eliminated?
		data := make([]byte, size)
		copy(data, f.Data())
		s.write(recvMsg{data: data})
	}
	// The server has closed the stream without sending trailers.  Record that
	// the read direction is closed, and set the status appropriately.
	if f.FrameHeader.Flags.Has(http2.FlagDataEndStream) {
		s.mu.Lock()
		if s.state == streamWriteDone {
			s.state = streamDone
		} else {
			s.state = streamReadDone
		}
		s.statusCode = codes.Internal
		s.statusDesc = "server closed the stream without sending trailers"
		s.mu.Unlock()
		s.write(recvMsg{err: io.EOF})
	}
}
Ejemplo n.º 2
0
func (t *http2Server) handleData(f *http2.DataFrame) {
	// Select the right stream to dispatch.
	s, ok := t.getStream(f)
	if !ok {
		return
	}
	size := len(f.Data())
	if size > 0 {
		if err := s.fc.onData(uint32(size)); err != nil {
			if _, ok := err.(ConnectionError); ok {
				grpclog.Printf("transport: http2Server %v", err)
				t.Close()
				return
			}
			t.closeStream(s)
			t.controlBuf.put(&resetStream{s.id, http2.ErrCodeFlowControl})
			return
		}
		// TODO(bradfitz, zhaoq): A copy is required here because there is no
		// guarantee f.Data() is consumed before the arrival of next frame.
		// Can this copy be eliminated?
		data := make([]byte, size)
		copy(data, f.Data())
		s.write(recvMsg{data: data})
	}
	if f.Header().Flags.Has(http2.FlagDataEndStream) {
		// Received the end of stream from the client.
		s.mu.Lock()
		if s.state != streamDone {
			if s.state == streamWriteDone {
				s.state = streamDone
			} else {
				s.state = streamReadDone
			}
		}
		s.mu.Unlock()
		s.write(recvMsg{err: io.EOF})
	}
}