Actual source code: zmfnf.c

slepc-3.22.2 2024-12-02
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  1: /*
  2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
  4:    Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain

  6:    This file is part of SLEPc.
  7:    SLEPc is distributed under a 2-clause BSD license (see LICENSE).
  8:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  9: */

 11: #include <petsc/private/fortranimpl.h>
 12: #include <slepcmfn.h>

 14: #if defined(PETSC_HAVE_FORTRAN_CAPS)
 15: #define mfnmonitordefault_                MFNMONITORDEFAULT
 16: #define mfnmonitorset_                    MFNMONITORSET
 17: #elif !defined(PETSC_HAVE_FORTRAN_UNDERSCORE)
 18: #define mfnmonitordefault_                mfnmonitordefault
 19: #define mfnmonitorset_                    mfnmonitorset
 20: #endif

 22: /*
 23:    These are not usually called from Fortran but allow Fortran users
 24:    to transparently set these monitors from .F code
 25: */
 26: SLEPC_EXTERN void mfnmonitordefault_(MFN *mfn,PetscInt *it,PetscReal *errest,PetscViewerAndFormat **ctx,PetscErrorCode *ierr)
 27: {
 28:   *ierr = MFNMonitorDefault(*mfn,*it,*errest,*ctx);
 29: }

 31: static struct {
 32:   PetscFortranCallbackId monitor;
 33:   PetscFortranCallbackId monitordestroy;
 34: } _cb;

 36: /* These are not extern C because they are passed into non-extern C user level functions */
 37: static PetscErrorCode ourmonitor(MFN mfn,PetscInt i,PetscReal d,void* ctx)
 38: {
 39:   PetscObjectUseFortranCallback(mfn,_cb.monitor,(MFN*,PetscInt*,PetscReal*,void*,PetscErrorCode*),(&mfn,&i,&d,_ctx,&ierr));
 40: }

 42: static PetscErrorCode ourdestroy(void** ctx)
 43: {
 44:   MFN mfn = (MFN)*ctx;
 45:   PetscObjectUseFortranCallback(mfn,_cb.monitordestroy,(void*,PetscErrorCode*),(_ctx,&ierr));
 46: }

 48: SLEPC_EXTERN void mfnmonitorset_(MFN *mfn,void (*monitor)(MFN*,PetscInt*,PetscReal*,void*,PetscErrorCode*),void *mctx,void (*monitordestroy)(void *,PetscErrorCode*),PetscErrorCode *ierr)
 49: {
 50:   CHKFORTRANNULLOBJECT(mctx);
 51:   CHKFORTRANNULLFUNCTION(monitordestroy);
 52:   if ((PetscVoidFunction)monitor == (PetscVoidFunction)mfnmonitordefault_) {
 53:     *ierr = MFNMonitorSet(*mfn,(PetscErrorCode (*)(MFN,PetscInt,PetscReal,void*))MFNMonitorDefault,*(PetscViewerAndFormat**)mctx,(PetscErrorCode (*)(void**))PetscViewerAndFormatDestroy);
 54:   } else {
 55:     *ierr = PetscObjectSetFortranCallback((PetscObject)*mfn,PETSC_FORTRAN_CALLBACK_CLASS,&_cb.monitor,(PetscVoidFunction)monitor,mctx); if (*ierr) return;
 56:     *ierr = PetscObjectSetFortranCallback((PetscObject)*mfn,PETSC_FORTRAN_CALLBACK_CLASS,&_cb.monitordestroy,(PetscVoidFunction)monitordestroy,mctx); if (*ierr) return;
 57:     *ierr = MFNMonitorSet(*mfn,ourmonitor,*mfn,ourdestroy);
 58:   }
 59: }