1 #include <petsc/private/fortranimpl.h> 2 #include <petscpc.h> 3 #include <petsc/private/pcmgimpl.h> 4 5 #if defined(PETSC_HAVE_FORTRAN_CAPS) 6 #define pcmgsetresidual_ PCMGSETRESIDUAL 7 #define pcmgresidualdefault_ PCMGRESIDUALDEFAULT 8 #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE) 9 #define pcmgsetresidual_ pcmgsetresidual 10 #define pcmgresidualdefault_ pcmgresidualdefault 11 #endif 12 13 typedef PetscErrorCode (*MVVVV)(Mat,Vec,Vec,Vec); 14 static PetscErrorCode ourresidualfunction(Mat mat,Vec b,Vec x,Vec R) 15 { 16 PetscErrorCode ierr = 0; 17 (*(void (PETSC_STDCALL *)(Mat*,Vec*,Vec*,Vec*,PetscErrorCode*))(((PetscObject)mat)->fortran_func_pointers[0]))(&mat,&b,&x,&R,&ierr); 18 return 0; 19 } 20 21 PETSC_EXTERN void pcmgresidualdefault_(Mat *mat,Vec *b,Vec *x,Vec *r, PetscErrorCode *ierr) 22 { 23 *ierr = PCMGResidualDefault(*mat,*b,*x,*r); 24 } 25 26 PETSC_EXTERN void PETSC_STDCALL pcmgsetresidual_(PC *pc,PetscInt *l,PetscErrorCode (*residual)(Mat*,Vec*,Vec*,Vec*,PetscErrorCode*),Mat *mat, PetscErrorCode *ierr) 27 { 28 MVVVV rr; 29 if ((PetscVoidFunction)residual == (PetscVoidFunction)pcmgresidualdefault_) rr = PCMGResidualDefault; 30 else { 31 PetscObjectAllocateFortranPointers(*mat,1); 32 /* Attach the residual computer to the Mat, this is not ideal but the only object/context passed in the residual computer */ 33 ((PetscObject)*mat)->fortran_func_pointers[0] = (PetscVoidFunction)residual; 34 35 rr = ourresidualfunction; 36 } 37 *ierr = PCMGSetResidual(*pc,*l,rr,*mat); 38 } 39 40