1*6dd63270SBarry Smith #include <petsc/private/ftnimpl.h> 2c6db04a5SJed Brown #include <petscpc.h> 3af0996ceSBarry Smith #include <petsc/private/pcmgimpl.h> 4e54e4138SSatish Balay 5e54e4138SSatish Balay #if defined(PETSC_HAVE_FORTRAN_CAPS) 6e54e4138SSatish Balay #define pcmgsetresidual_ PCMGSETRESIDUAL 754b2cd4bSJed Brown #define pcmgresidualdefault_ PCMGRESIDUALDEFAULT 8e54e4138SSatish Balay #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE) 9e54e4138SSatish Balay #define pcmgsetresidual_ pcmgsetresidual 1054b2cd4bSJed Brown #define pcmgresidualdefault_ pcmgresidualdefault 1136f61ee5SJed Brown #endif 1236f61ee5SJed Brown 13e54e4138SSatish Balay typedef PetscErrorCode (*MVVVV)(Mat, Vec, Vec, Vec); 14e54e4138SSatish Balay static PetscErrorCode ourresidualfunction(Mat mat, Vec b, Vec x, Vec R) 15e54e4138SSatish Balay { 163ba16761SJacob Faibussowitsch PetscCallFortranVoidFunction((*(void (*)(Mat *, Vec *, Vec *, Vec *, PetscErrorCode *))(((PetscObject)mat)->fortran_func_pointers[0]))(&mat, &b, &x, &R, &ierr)); 173ba16761SJacob Faibussowitsch return PETSC_SUCCESS; 18e54e4138SSatish Balay } 19e54e4138SSatish Balay 20cc4c1da9SBarry Smith PETSC_EXTERN void pcmgresidualdefault_(Mat *, Vec *, Vec *, Vec *, PetscErrorCode *); 21e54e4138SSatish Balay 2219caf8f3SSatish Balay PETSC_EXTERN void pcmgsetresidual_(PC *pc, PetscInt *l, PetscErrorCode (*residual)(Mat *, Vec *, Vec *, Vec *, PetscErrorCode *), Mat *mat, PetscErrorCode *ierr) 23e54e4138SSatish Balay { 24e54e4138SSatish Balay MVVVV rr; 258434afd1SBarry Smith if ((PetscVoidFn *)residual == (PetscVoidFn *)pcmgresidualdefault_) rr = PCMGResidualDefault; 26e54e4138SSatish Balay else { 277850c7c0SBarry Smith PetscObjectAllocateFortranPointers(*mat, 1); 287850c7c0SBarry Smith /* Attach the residual computer to the Mat, this is not ideal but the only object/context passed in the residual computer */ 298434afd1SBarry Smith ((PetscObject)*mat)->fortran_func_pointers[0] = (PetscVoidFn *)residual; 302fa5cd67SKarl Rupp 31e54e4138SSatish Balay rr = ourresidualfunction; 32e54e4138SSatish Balay } 33e54e4138SSatish Balay *ierr = PCMGSetResidual(*pc, *l, rr, *mat); 34e54e4138SSatish Balay } 35