package libcontainerd import ( "io" "sync" "github.com/Microsoft/hcsshim" "github.com/docker/docker/pkg/ioutils" ) // process keeps the state for both main container process and exec process. type process struct { processCommon // Platform specific fields are below here. hcsProcess hcsshim.Process } type autoClosingReader struct { io.ReadCloser sync.Once } func (r *autoClosingReader) Read(b []byte) (n int, err error) { n, err = r.ReadCloser.Read(b) if err == io.EOF { r.Once.Do(func() { r.ReadCloser.Close() }) } return } func createStdInCloser(pipe io.WriteCloser, process hcsshim.Process) io.WriteCloser { return ioutils.NewWriteCloserWrapper(pipe, func() error { if err := pipe.Close(); err != nil { return err } err := process.CloseStdin() if err != nil && !hcsshim.IsNotExist(err) && !hcsshim.IsAlreadyClosed(err) { // This error will occur if the compute system is currently shutting down if perr, ok := err.(*hcsshim.ProcessError); ok && perr.Err != hcsshim.ErrVmcomputeOperationInvalidState { return err } } return nil }) }