func (s *ServerRPC) Attach(stream types.PublicAPI_AttachServer) error {
req, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return err
}
glog.V(3).Infof("Attach with request %s", req.String())
ir, iw := io.Pipe()
or, ow := io.Pipe()
go func() {
for {
cmd, err := stream.Recv()
if err == io.EOF {
return
}
if err != nil {
glog.Errorf("Receive from stream error: %v", err)
return
}
n, err := iw.Write(cmd.Data)
if err != nil {
glog.Errorf("Write pipe error: %v", err)
return
}
if n != len(cmd.Data) {
glog.Errorf("Write data length is not enough, write: %d, success: %d", len(cmd.Data), n)
return
}
}
}()
go func() {
defer or.Close()
for {
res := make([]byte, 512)
n, err := or.Read(res)
if n > 0 {
if err := stream.Send(&types.AttachMessage{Data: res[:n]}); err != nil {
glog.Errorf("Send to stream error: %v", err)
return
}
}
if err == io.EOF {
return
}
if err != nil {
glog.Errorf("Read from pipe error: %v", err)
return
}
}
}()
return s.daemon.Attach(ir, ow, req.ContainerID)
}
func (s *ServerRPC) Attach(stream types.PublicAPI_AttachServer) error {
req, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return err
}
glog.V(3).Infof("Attach with request %s", req.String())
ir, iw := io.Pipe()
or, ow := io.Pipe()
go func() {
for {
cmd, err := stream.Recv()
if err != nil {
return
}
if _, err := iw.Write(cmd.Data); err != nil {
return
}
}
}()
go func() {
for {
res := make([]byte, 512)
n, err := or.Read(res)
if err != nil {
return
}
if err := stream.Send(&types.AttachMessage{Data: res[:n]}); err != nil {
return
}
}
}()
return s.daemon.Attach(ir, ow, req.ContainerID)
}