blob: 56ae6220d7a7660cd5a63cfcf5d304620e420e3a [file] [log] [blame]
// 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_