LArFFTWPlan.h

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#ifndef LARFFTWPLAN_H
#define LARFFTWPLAN_H

// C/C++ standard libraries
#include <algorithm>
#include <mutex>
#include <string>

#include "fftw3.h"

namespace util {

  class LArFFTWPlan {

  public:
    LArFFTWPlan(int transformSize, const std::string& option);
    ~LArFFTWPlan();
    void* fPlan;
    void* rPlan;
    void* fIn;
    void* fOut;
    void* rIn;
    void* rOut;

  private:
    static std::mutex mutex_;
    int fSize;     // size of transform
    int fFreqSize; // size of frequency space
    int* fN;
    std::string fOption; // FFTW setting

    unsigned int MapFFTWOption();
  };

} // end namespace util

#endif