RawFileReader.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef O2_MID_RAWFILEREADER_H
#define O2_MID_RAWFILEREADER_H
 
#include <cstdint>
#include <fstream>
#include <vector>
#include "Headers/RAWDataHeader.h"
 
namespace o2
{
namespace mid
{
class RawFileReader
{
 public:
  bool init(const char* inFilename, bool readContinuous = false);
  bool readHB(bool sendCompleteHBs = false);
  void clear();
 
  int getState() { return mState; }
 
  const std::vector<uint8_t>& getData() { return mBytes; }
 
  void setCustomRDH(const header::RAWDataHeader& rdh) { mCustomRDH = rdh; }
  void setCustomPayloadSize(uint16_t memorySize = 0x2000, uint16_t offsetToNext = 0x2000);
 
 private:
  void read(size_t nBytes);
  bool replaceRDH(size_t headerIndex);
 
  std::ifstream mFile{};                         
  std::vector<uint8_t> mBytes;                   
  static constexpr unsigned int sHeaderSize{64}; 
  bool mReadContinuous{false};                   
  int mState{0};                                 
 
  header::RAWDataHeader mCustomRDH{}; 
};
} // namespace mid
} // namespace o2
 
#endif /* O2_MID_RAWFILEREADER_H */