BinaryRpc.h

Go to the documentation of this file.

/* Copyright 2013-2019 Homegear GmbH
 *
 * libhomegear-base is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * libhomegear-base is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with libhomegear-base.  If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU Lesser General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
*/

#ifndef BINARYRPC_H_
#define BINARYRPC_H_

#include "../Variable.h"
#include "../Exception.h"

namespace BaseLib {

class SharedObjects;

namespace Rpc {

class BinaryRpcException : public BaseLib::Exception {
 public:
  explicit BinaryRpcException(const std::string &message) : BaseLib::Exception(message) {}
};

class BinaryRpc {
 public:
  enum class Type {
    unknown,
    request,
    response
  };

  BinaryRpc();

  explicit BinaryRpc(BaseLib::SharedObjects *bl);
  ~BinaryRpc() = default;

  size_t getMaxHeaderSize() { return _maxHeaderSize; }
  void setMaxHeaderSize(size_t value) { _maxHeaderSize = value; }
  size_t getMaxContentSize() { return _maxContentSize; }
  void setMaxContentSize(size_t value) { _maxContentSize = value; }
  Type getType() { return _type; }
  bool hasHeader() { return _hasHeader; }
  bool processingStarted() { return _headerProcessingStarted || _dataProcessingStarted; }
  bool headerProcessingStarted() { return _headerProcessingStarted; }
  bool dataProcessingStarted() { return _dataProcessingStarted; }
  bool isFinished() { return _finished; }
  std::vector<char> &getData() { return _data; }

  void reset();

  int32_t process(char *buffer, int32_t bufferLength);
 private:
  SharedObjects *_bl = nullptr;
  size_t _maxHeaderSize = 102400;
  size_t _maxContentSize = 104857600;
  bool _hasHeader = false;
  bool _headerProcessingStarted = false;
  bool _dataProcessingStarted = false;
  bool _finished = false;
  Type _type = Type::unknown;
  uint32_t _headerSize = 0;
  uint32_t _dataSize = 0;
  std::vector<char> _data;
};
}
}
#endif