/*
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SLEPc - Scalable Library for Eigenvalue Problem Computations
Copyright (c) 2002-2009, Universidad Politecnica de Valencia, Spain
This file is part of SLEPc.
SLEPc is free software: you can redistribute it and/or modify it under the
terms of version 3 of the GNU Lesser General Public License as published by
the Free Software Foundation.
SLEPc is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
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*/
#include "private/fortranimpl.h"
#include "slepcst.h"
#ifdef PETSC_HAVE_FORTRAN_CAPS
#define stshellgetcontext_ STSHELLGETCONTEXT
#define stshellsetapply_ STSHELLSETAPPLY
#define stshellsetapplytranspose_ STSHELLSETAPPLYTRANSPOSE
#define stshellsetbacktransform_ STSHELLSETBACKTRANSFORM
#define stshellsetname_ STSHELLSETNAME
#elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
#define stshellgetcontext_ stshellgetcontext
#define stshellsetapply_ stshellsetapply
#define stshellsetapplytranspose_ stshellsetapplytranspose
#define stshellsetbacktransform_ stshellsetbacktransform
#define stshellsetname_ stshellsetname
#endif
/* These are not extern C because they are passed into non-extern C user level functions */
static PetscErrorCode ourshellapply(ST st,Vec x,Vec y)
{
PetscErrorCode ierr = 0;
(*(void (PETSC_STDCALL *)(ST*,Vec*,Vec*,PetscErrorCode*))(((PetscObject)st)->fortran_func_pointers[0]))(&st,&x,&y,&ierr);CHKERRQ(ierr);
return 0;
}
static PetscErrorCode ourshellapplytranspose(ST st,Vec x,Vec y)
{
PetscErrorCode ierr = 0;
(*(void (PETSC_STDCALL *)(ST*,Vec*,Vec*,PetscErrorCode*))(((PetscObject)st)->fortran_func_pointers[1]))(&st,&x,&y,&ierr);CHKERRQ(ierr);
return 0;
}
static PetscErrorCode ourshellbacktransform(ST st,PetscInt n,PetscScalar *eigr,PetscScalar *eigi)
{
PetscErrorCode ierr = 0;
(*(void (PETSC_STDCALL *)(ST*,PetscInt*,PetscScalar*,PetscScalar*,PetscErrorCode*))(((PetscObject)st)->fortran_func_pointers[2]))(&st,&n,eigr,eigi,&ierr);CHKERRQ(ierr);
return 0;
}
EXTERN_C_BEGIN
void PETSC_STDCALL stshellgetcontext_(ST *st,void **ctx,PetscErrorCode *ierr)
{
*ierr = STShellGetContext(*st,ctx);
}
void PETSC_STDCALL stshellsetapply_(ST *st,void (PETSC_STDCALL *apply)(void*,Vec *,Vec *,PetscErrorCode*),
PetscErrorCode *ierr)
{
PetscObjectAllocateFortranPointers(*st,3);
((PetscObject)*st)->fortran_func_pointers[0] = (PetscVoidFunction)apply;
*ierr = STShellSetApply(*st,ourshellapply);
}
void PETSC_STDCALL stshellsetapplytranspose_(ST *st,void (PETSC_STDCALL *applytranspose)(void*,Vec *,Vec *,PetscErrorCode*),
PetscErrorCode *ierr)
{
PetscObjectAllocateFortranPointers(*st,3);
((PetscObject)*st)->fortran_func_pointers[1] = (PetscVoidFunction)applytranspose;
*ierr = STShellSetApplyTranspose(*st,ourshellapplytranspose);
}
void PETSC_STDCALL stshellsetbacktransform_(ST *st,void (PETSC_STDCALL *backtransform)(void*,PetscScalar*,PetscScalar*,PetscErrorCode*),
PetscErrorCode *ierr)
{
PetscObjectAllocateFortranPointers(*st,3);
((PetscObject)*st)->fortran_func_pointers[2] = (PetscVoidFunction)backtransform;
*ierr = STShellSetBackTransform(*st,ourshellbacktransform);
}
void PETSC_STDCALL stshellsetname_(ST *st,CHAR name PETSC_MIXED_LEN(len), PetscErrorCode *ierr PETSC_END_LEN(len))
{
char *c;
FIXCHAR(name,len,c);
*ierr = STShellSetName(*st,c);
FREECHAR(name,c);
}
EXTERN_C_END