hdf5_frame.hh

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#pragma once
 
// DiFfRG
#include <DiFfRG/discretization/data/output_timings.hh>
 
#include <hdf5lib/hdf5.hh>
 
// standard library
#include <functional>
#include <map>
#include <string>
#include <vector>
 
namespace DiFfRG
{
  class HDF5FrameContext
  {
  public:
    explicit HDF5FrameContext(const std::string &path, FrameTimings *timings = nullptr);
    ~HDF5FrameContext() noexcept;
 
    HDF5FrameContext(const HDF5FrameContext &) = delete;
    HDF5FrameContext &operator=(const HDF5FrameContext &) = delete;
 
    DiFfRG::hdf5::Group &group(const std::string &name);
    DiFfRG::hdf5::Group &root() { return root_group; }
 
  private:
    DiFfRG::hdf5::File h5_file;
    DiFfRG::hdf5::Group root_group;
    std::map<std::string, DiFfRG::hdf5::Group> open_groups;
    FrameTimings *timings;
  };
 
  using HDF5Action = std::function<void(HDF5FrameContext &)>;
 
  struct HDF5Frame {
    std::string path;
    double time = 0.;
    std::vector<HDF5Action> actions;
 
    bool empty() const noexcept { return actions.empty(); }
 
    void run(FrameTimings *timings = nullptr) const;
  };
} // namespace DiFfRG