text: /*
   * This file is part of the MAVLink Router project
   *
   * Copyright (C) 2017  Intel Corporation. All rights reserved.
   *
   * Licensed 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 "logendpoint.h"
  #include "timeout.h"
  
  #define BUFFER_LEN 2048
  
  class BinLog : public LogEndpoint {
  public:
      BinLog(const char *logs_dir)
          : LogEndpoint{"BinLog", logs_dir}
      {
      }
  
      bool start() override;
      void stop() override;
  
      bool logging_start_timeout();
  
      int write_msg(const struct buffer *pbuf) override;
      int flush_pending_msgs() override { return -ENOSYS; }
  
  protected:
      ssize_t _read_msg(uint8_t *buf, size_t len) override { return 0; };
      bool _start_timeout() override;
  
      const char *_get_logfile_extension() override { return "bin"; };
  private:
      uint32_t _last_acked_seqno = 0;
  
      bool _logging_seq(uint16_t seq, bool *drop);
      void _logging_data_process(mavlink_remote_log_data_block_t *msg);
      bool _logging_flush();
  
      void _send_ack(uint32_t seqno);
      void _send_stop();
      void _restart();
  };
  