Example #1
0
func checkRecvPayload(pf payloadFormat, recvCompress string, dc Decompressor) error {
	switch pf {
	case compressionNone:
	case compressionMade:
		if recvCompress == "" {
			return transport.StreamErrorf(codes.InvalidArgument, "grpc: received unexpected payload format %d", pf)
		}
		if dc == nil || recvCompress != dc.Type() {
			return transport.StreamErrorf(codes.InvalidArgument, "grpc: Decompressor is not installed for grpc-encoding %q", recvCompress)
		}
	default:
		return transport.StreamErrorf(codes.InvalidArgument, "grpc: received unexpected payload format %d", pf)
	}
	return nil
}
Example #2
0
func (cs *clientStream) SendMsg(m interface{}) (err error) {
	if cs.tracing {
		cs.mu.Lock()
		if cs.trInfo.tr != nil {
			cs.trInfo.tr.LazyLog(&payload{sent: true, msg: m}, true)
		}
		cs.mu.Unlock()
	}
	defer func() {
		if err == nil || err == io.EOF {
			return
		}
		if _, ok := err.(transport.ConnectionError); !ok {
			cs.closeTransportStream(err)
		}
		err = toRPCErr(err)
	}()
	out, err := encode(cs.codec, m, cs.cp, cs.cbuf)
	defer func() {
		if cs.cbuf != nil {
			cs.cbuf.Reset()
		}
	}()
	if err != nil {
		return transport.StreamErrorf(codes.Internal, "grpc: %v", err)
	}
	return cs.t.Write(cs.s, out, &transport.Options{Last: false})
}
Example #3
0
func (ss *serverStream) SendMsg(m interface{}) (err error) {
	defer func() {
		if ss.trInfo != nil {
			ss.mu.Lock()
			if ss.trInfo.tr != nil {
				if err == nil {
					ss.trInfo.tr.LazyLog(&payload{sent: true, msg: m}, true)
				} else {
					ss.trInfo.tr.LazyLog(&fmtStringer{"%v", []interface{}{err}}, true)
					ss.trInfo.tr.SetError()
				}
			}
			ss.mu.Unlock()
		}
	}()
	out, err := encode(ss.codec, m, ss.cp, ss.cbuf)
	defer func() {
		if ss.cbuf != nil {
			ss.cbuf.Reset()
		}
	}()
	if err != nil {
		err = transport.StreamErrorf(codes.Internal, "grpc: %v", err)
		return err
	}
	return ss.t.Write(ss.s, out, &transport.Options{Last: false})
}
Example #4
0
// sendRequest writes out various information of an RPC such as Context and Message.
func sendRequest(ctx context.Context, codec Codec, compressor Compressor, callHdr *transport.CallHdr, t transport.ClientTransport, args interface{}, opts *transport.Options) (_ *transport.Stream, err error) {
	stream, err := t.NewStream(ctx, callHdr)
	if err != nil {
		return nil, err
	}
	defer func() {
		if err != nil {
			if _, ok := err.(transport.ConnectionError); !ok {
				t.CloseStream(stream, err)
			}
		}
	}()
	var cbuf *bytes.Buffer
	if compressor != nil {
		cbuf = new(bytes.Buffer)
	}
	outBuf, err := encode(codec, args, compressor, cbuf)
	if err != nil {
		return nil, transport.StreamErrorf(codes.Internal, "grpc: %v", err)
	}
	err = t.Write(stream, outBuf, opts)
	if err != nil {
		return nil, err
	}
	// Sent successfully.
	return stream, nil
}
Example #5
0
func recv(p *parser, c Codec, s *transport.Stream, dc Decompressor, m interface{}) error {
	pf, d, err := p.recvMsg()
	if err != nil {
		return err
	}
	if err := checkRecvPayload(pf, s.RecvCompress(), dc); err != nil {
		return err
	}
	if pf == compressionMade {
		d, err = dc.Do(bytes.NewReader(d))
		if err != nil {
			return transport.StreamErrorf(codes.Internal, "grpc: failed to decompress the received message %v", err)
		}
	}
	if err := c.Unmarshal(d, m); err != nil {
		return transport.StreamErrorf(codes.Internal, "grpc: failed to unmarshal the received message %v", err)
	}
	return nil
}