#ifndef OPENCLRUNTIME_H
#define OPENCLRUNTIME_H

#include <cctk.h>

#ifdef __cplusplus

namespace OpenCLRunTime {
  
  extern "C" {

#endif
    
    // Opaque object describing an OpenCL kernel
    struct OpenCLKernel;
    
    // Call a kernel function that is given as source code string. This
    // is efficient, i.e. the compiled kernel is cached. *pkernel must
    // be a NULL pointer in the first call, and is then allocated by
    // this routine.
    void OpenCLRunTime_CallKernel(cGH const *const cctkGH,
                                  // thorn name
                                  char const *const thorn,
                                  // kernel name
                                  char const *const name,
                                  // kernel source
                                  char const *const sources[],
                                  // list of accessed grid functions
                                  char const *const groups[],
                                  int const varindices[],
                                  int const timelevels[],
                                  char const *const aliases[],
                                  int const nvars,
                                  // looping region
                                  int const imin[],
                                  int const imax[],
                                  // data structure describing kernel
                                  struct OpenCLKernel **const pkernel);
  
#ifdef __cplusplus
    
  } // extern "C"
  
} // namespace OpenCLRunTime

using namespace OpenCLRunTime;

#endif

#endif  // #ifndef OPENCLRUNTIME_H