2: #ifndef _VIEWERIMPL
  3: #define _VIEWERIMPL

  5: #include <petsc/private/petscimpl.h>
  6: #include <petscviewer.h>

  8: PETSC_EXTERN PetscBool      PetscViewerRegisterAllCalled;
  9: PETSC_EXTERN PetscErrorCode PetscViewerRegisterAll(void);

 11: struct _PetscViewerOps {
 12:    PetscErrorCode (*destroy)(PetscViewer);
 13:    PetscErrorCode (*view)(PetscViewer,PetscViewer);
 14:    PetscErrorCode (*flush)(PetscViewer);
 15:    PetscErrorCode (*getsubviewer)(PetscViewer,MPI_Comm,PetscViewer*);
 16:    PetscErrorCode (*restoresubviewer)(PetscViewer,MPI_Comm,PetscViewer*);
 17:    PetscErrorCode (*read)(PetscViewer,void*,PetscInt,PetscInt*,PetscDataType);
 18:    PetscErrorCode (*setfromoptions)(PetscOptionItems*,PetscViewer);
 19:    PetscErrorCode (*setup)(PetscViewer);
 20: };

 22: #define PETSCVIEWERGETVIEWEROFFPUSHESMAX 25

 24: #define PETSCVIEWERFORMATPUSHESMAX 25
 25: /*
 26:    Defines the viewer data structure.
 27: */
 28: struct _p_PetscViewer {
 29:   PETSCHEADER(struct _PetscViewerOps);
 30:   PetscViewerFormat format,formats[PETSCVIEWERFORMATPUSHESMAX];
 31:   int               iformat;   /* number of formats that have been pushed on formats[] stack */
 32:   void              *data;
 33:   PetscBool         setupcalled;
 34: };

 36: PETSC_EXTERN PetscMPIInt Petsc_Viewer_keyval;
 37: PETSC_EXTERN PetscMPIInt Petsc_Viewer_Stdout_keyval;
 38: PETSC_EXTERN PetscMPIInt Petsc_Viewer_Stderr_keyval;
 39: PETSC_EXTERN PetscMPIInt Petsc_Viewer_Binary_keyval;
 40: PETSC_EXTERN PetscMPIInt Petsc_Viewer_Draw_keyval;
 41: #if defined(PETSC_HAVE_HDF5)
 42: PETSC_EXTERN PetscMPIInt Petsc_Viewer_HDF5_keyval;
 43: #endif
 44: #if defined(PETSC_USE_SOCKETVIEWER)
 45: PETSC_EXTERN PetscMPIInt Petsc_Viewer_Socket_keyval;
 46: #endif

 48: #endif