| // Copyright (c) 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef QUICHE_QUIC_CORE_QUIC_STREAM_FRAME_DATA_PRODUCER_H_ |
| #define QUICHE_QUIC_CORE_QUIC_STREAM_FRAME_DATA_PRODUCER_H_ |
| |
| #include "quiche/quic/core/quic_types.h" |
| |
| namespace quic { |
| |
| class QuicDataWriter; |
| |
| // Pure virtual class to retrieve stream data. |
| class QUICHE_EXPORT QuicStreamFrameDataProducer { |
| public: |
| virtual ~QuicStreamFrameDataProducer() {} |
| |
| // Let |writer| write |data_length| data with |offset| of stream |id|. The |
| // write fails when either stream is closed or corresponding data is failed to |
| // be retrieved. This method allows writing a single stream frame from data |
| // that spans multiple buffers. |
| virtual WriteStreamDataResult WriteStreamData(QuicStreamId id, |
| QuicStreamOffset offset, |
| QuicByteCount data_length, |
| QuicDataWriter* writer) = 0; |
| |
| // Writes the data for a CRYPTO frame to |writer| for a frame at encryption |
| // level |level| starting at offset |offset| for |data_length| bytes. Returns |
| // whether writing the data was successful. |
| virtual bool WriteCryptoData(EncryptionLevel level, QuicStreamOffset offset, |
| QuicByteCount data_length, |
| QuicDataWriter* writer) = 0; |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_QUIC_STREAM_FRAME_DATA_PRODUCER_H_ |