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// Copyright (c) 2018 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_QPACK_QPACK_ENCODER_STREAM_SENDER_H_
#define QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_SENDER_H_
#include <cstdint>
#include "absl/strings/string_view.h"
#include "net/third_party/quiche/src/quic/core/qpack/qpack_instruction_encoder.h"
#include "net/third_party/quiche/src/quic/core/qpack/qpack_stream_sender_delegate.h"
#include "net/third_party/quiche/src/quic/core/quic_types.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
namespace quic {
// This class serializes instructions for transmission on the encoder stream.
// Serialized instructions are buffered until Flush() is called.
class QUIC_EXPORT_PRIVATE QpackEncoderStreamSender {
public:
QpackEncoderStreamSender();
QpackEncoderStreamSender(const QpackEncoderStreamSender&) = delete;
QpackEncoderStreamSender& operator=(const QpackEncoderStreamSender&) = delete;
// Methods for serializing and buffering instructions, see
// https://quicwg.org/base-drafts/draft-ietf-quic-qpack.html#rfc.section.5.2
// 5.2.1. Insert With Name Reference
void SendInsertWithNameReference(bool is_static,
uint64_t name_index,
absl::string_view value);
// 5.2.2. Insert Without Name Reference
void SendInsertWithoutNameReference(absl::string_view name,
absl::string_view value);
// 5.2.3. Duplicate
void SendDuplicate(uint64_t index);
// 5.2.4. Set Dynamic Table Capacity
void SendSetDynamicTableCapacity(uint64_t capacity);
// Returns number of buffered bytes.
QuicByteCount BufferedByteCount() const { return buffer_.size(); }
// Writes all buffered instructions on the encoder stream.
void Flush();
// delegate must be set if dynamic table capacity is not zero.
void set_qpack_stream_sender_delegate(QpackStreamSenderDelegate* delegate) {
delegate_ = delegate;
}
private:
QpackStreamSenderDelegate* delegate_;
QpackInstructionEncoder instruction_encoder_;
std::string buffer_;
};
} // namespace quic
#endif // QUICHE_QUIC_CORE_QPACK_QPACK_ENCODER_STREAM_SENDER_H_
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