| /** @file |
| * |
| * A brief file description |
| * |
| * @section license License |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include "QUICStream.h" |
| |
| /** |
| * @brief QUIC Crypto stream |
| * Differences from QUICStream are below |
| * - this doesn't have VConnection interface |
| * - no stream id |
| * - no flow control |
| * - no state (never closed) |
| */ |
| class QUICCryptoStream : public QUICStream |
| { |
| public: |
| QUICCryptoStream(); |
| ~QUICCryptoStream(); |
| |
| int state_stream_open(int event, void *data); |
| |
| const QUICConnectionInfoProvider *info() const; |
| QUICOffset final_offset() const; |
| void reset_send_offset(); |
| void reset_recv_offset(); |
| |
| QUICConnectionErrorUPtr recv(const QUICCryptoFrame &frame) override; |
| |
| int64_t read_avail(); |
| int64_t read(uint8_t *buf, int64_t len); |
| int64_t write(const uint8_t *buf, int64_t len); |
| |
| // QUICFrameGenerator |
| bool will_generate_frame(QUICEncryptionLevel level, size_t current_packet_size, bool ack_eliciting, uint32_t seq_num) override; |
| QUICFrame *generate_frame(uint8_t *buf, QUICEncryptionLevel level, uint64_t connection_credit, uint16_t maximum_frame_size, |
| size_t current_packet_size, uint32_t seq_num) override; |
| |
| private: |
| void _on_frame_acked(QUICFrameInformationUPtr &info) override; |
| void _on_frame_lost(QUICFrameInformationUPtr &info) override; |
| |
| QUICStreamErrorUPtr _reset_reason = nullptr; |
| QUICOffset _send_offset = 0; |
| |
| // Fragments of received STREAM frame (offset is unmatched) |
| // TODO: Consider to replace with ts/RbTree.h or other data structure |
| QUICIncomingCryptoFrameBuffer _received_stream_frame_buffer; |
| |
| MIOBuffer *_read_buffer = nullptr; |
| MIOBuffer *_write_buffer = nullptr; |
| |
| IOBufferReader *_read_buffer_reader = nullptr; |
| IOBufferReader *_write_buffer_reader = nullptr; |
| }; |