StreamerFileIO.h

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#ifndef IOPool_Streamer_StreamerFileIO_h
#define IOPool_Streamer_StreamerFileIO_h

#include "IOPool/Streamer/interface/MsgTools.h"
#include "FWCore/Utilities/interface/propagate_const.h"
#include <memory>
#include <iosfwd>
#include <string>

//-------------------------------------------------------

class OutputFile
{
public:
  explicit OutputFile(const std::string& name);
  ~OutputFile();

  bool write(const char* ptr, size_t n);

  std::string fileName() const { return filename_; }
  uint64 current_offset() const { return current_offset_; }
  uint32 adler32() const { return (adlerb_ << 16) | adlera_; }

  void set_do_adler(bool v) { do_adler_ = v; }
  void set_current_offset(uint64 v) { current_offset_ = v; }
  void close();

private:
  uint64 current_offset_; 
  bool do_adler_;
  uint32 adlera_;
  uint32 adlerb_;

  edm::propagate_const<std::shared_ptr<std::ofstream>> ost_;
  std::string filename_;
};

#endif