| 163 | } |
| 164 | |
| 165 | func (r *forwardReader) Read(p []byte) (int, error) { |
| 166 | if r.err != nil && r.pos >= len(r.buf) { |
| 167 | return 0, r.err |
| 168 | } |
| 169 | if r.pos >= len(r.buf) { |
| 170 | // Need a new chunk. |
| 171 | reply, err := r.stream.Recv() |
| 172 | if err != nil { |
| 173 | if errors.Is(err, io.EOF) { |
| 174 | r.err = io.EOF |
| 175 | return 0, io.EOF |
| 176 | } |
| 177 | r.err = err |
| 178 | return 0, err |
| 179 | } |
| 180 | r.buf = reply.GetBodyChunk() |
| 181 | r.pos = 0 |
| 182 | if len(r.buf) == 0 { |
| 183 | // Zero-length chunk — try again rather than returning 0 |
| 184 | // (some readers treat that as EOF). |
| 185 | return r.Read(p) |
| 186 | } |
| 187 | } |
| 188 | n := copy(p, r.buf[r.pos:]) |
| 189 | r.pos += n |
| 190 | return n, nil |
| 191 | } |
| 192 | |
| 193 | func (r *forwardReader) Close() error { |
| 194 | // Drain any remaining replies so the server-side goroutine isn't |