Project import generated by Copybara.
PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/quic_stream_frame_data_producer.h b/quic/core/quic_stream_frame_data_producer.h
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+// 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 "net/third_party/quiche/src/quic/core/quic_types.h"
+
+namespace quic {
+
+class QuicDataWriter;
+
+// Pure virtual class to retrieve stream data.
+class QUIC_EXPORT_PRIVATE 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_
