Actual source code: ftnimpl.h

  1: #pragma once

  3: #include <petsc/private/petscimpl.h>
  4: PETSC_INTERN PetscErrorCode PETScParseFortranArgs_Private(int *, char ***);
  5: PETSC_EXTERN PetscErrorCode PetscMPIFortranDatatypeToC(MPI_Fint, MPI_Datatype *);

  7: PETSC_EXTERN PetscErrorCode PetscScalarAddressToFortran(PetscObject, PetscInt, PetscScalar *, PetscScalar *, PetscInt, size_t *);
  8: PETSC_EXTERN PetscErrorCode PetscScalarAddressFromFortran(PetscObject, PetscScalar *, size_t, PetscInt, PetscScalar **);
  9: PETSC_EXTERN size_t         PetscIntAddressToFortran(const PetscInt *, const PetscInt *);
 10: PETSC_EXTERN PetscInt      *PetscIntAddressFromFortran(const PetscInt *, size_t);
 11: PETSC_EXTERN char          *PETSC_NULL_CHARACTER_Fortran;
 12: PETSC_EXTERN void          *PETSC_NULL_INTEGER_Fortran;
 13: PETSC_EXTERN void          *PETSC_NULL_SCALAR_Fortran;
 14: PETSC_EXTERN void          *PETSC_NULL_DOUBLE_Fortran;
 15: PETSC_EXTERN void          *PETSC_NULL_REAL_Fortran;
 16: PETSC_EXTERN void          *PETSC_NULL_BOOL_Fortran;
 17: PETSC_EXTERN void          *PETSC_NULL_ENUM_Fortran;
 18: PETSC_EXTERN void          *PETSC_NULL_INTEGER_ARRAY_Fortran;
 19: PETSC_EXTERN void          *PETSC_NULL_SCALAR_ARRAY_Fortran;
 20: PETSC_EXTERN void          *PETSC_NULL_REAL_ARRAY_Fortran;
 21: PETSC_EXTERN void          *PETSC_NULL_MPI_COMM_Fortran;
 22: PETSC_EXTERN void          *PETSC_NULL_INTEGER_POINTER_Fortran;
 23: PETSC_EXTERN void          *PETSC_NULL_SCALAR_POINTER_Fortran;
 24: PETSC_EXTERN void          *PETSC_NULL_REAL_POINTER_Fortran;
 25: PETSC_EXTERN void (*PETSC_NULL_FUNCTION_Fortran)(void);

 27: PETSC_INTERN PetscErrorCode PetscInitFortran_Private(const char *, PetscInt);

 29: /*  ----------------------------------------------------------------------*/
 30: /*
 31:    PETSc object C pointers are stored directly as
 32:    Fortran integer*4 or *8 depending on the size of pointers.
 33: */

 35: /* --------------------------------------------------------------------*/
 36: /*
 37:     Since Fortran does not null terminate strings we need to insure the string is null terminated before passing it
 38:     to C. This may require a memory allocation which is then freed with FREECHAR().
 39: */
 40: #define FIXCHAR(a, n, b) \
 41:   do { \
 42:     if ((a) == PETSC_NULL_CHARACTER_Fortran) { \
 43:       (b) = PETSC_NULLPTR; \
 44:       (a) = PETSC_NULLPTR; \
 45:     } else { \
 46:       while (((n) > 0) && ((a)[(n) - 1] == ' ')) (n)--; \
 47:       *ierr = PetscMalloc1((n) + 1, &(b)); \
 48:       if (*ierr) return; \
 49:       *ierr  = PetscMemcpy((b), (a), (n)); \
 50:       (b)[n] = '\0'; \
 51:       if (*ierr) return; \
 52:     } \
 53:   } while (0)
 54: #define FREECHAR(a, b) \
 55:   do { \
 56:     if (a != b) *ierr = PetscFree(b); \
 57:   } while (0)

 59: /*
 60:     Fortran expects any unneeded characters at the end of its strings to be filled with the blank character.
 61: */
 62: #define FIXRETURNCHAR(flg, a, n) \
 63:   do { \
 64:     if (flg) { \
 65:       PETSC_FORTRAN_CHARLEN_T __i; \
 66:       for (__i = 0; __i < n && a[__i] != 0; __i++) { }; \
 67:       for (; __i < n; __i++) a[__i] = ' '; \
 68:     } \
 69:   } while (0)

 71: /*
 72:     The cast through PETSC_UINTPTR_T is so that compilers that warn about casting to/from void * to void(*)(void)
 73:     will not complain about these comparisons. It is not know if this works for all compilers
 74: */
 75: #define FORTRANNULLINTEGERPOINTER(a) (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_INTEGER_POINTER_Fortran)
 76: #define FORTRANNULLSCALARPOINTER(a)  (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_SCALAR_POINTER_Fortran)
 77: #define FORTRANNULLREALPOINTER(a)    (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_REAL_POINTER_Fortran)
 78: #define FORTRANNULLINTEGER(a)        (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_INTEGER_Fortran || ((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_INTEGER_ARRAY_Fortran)
 79: #define FORTRANNULLSCALAR(a)         (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_SCALAR_Fortran || ((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_SCALAR_ARRAY_Fortran)
 80: #define FORTRANNULLREAL(a)           (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_REAL_Fortran || ((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_REAL_ARRAY_Fortran)
 81: #define FORTRANNULLDOUBLE(a)         (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_DOUBLE_Fortran)
 82: #define FORTRANNULLBOOL(a)           (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_BOOL_Fortran)
 83: #define FORTRANNULLENUM(a)           ((((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_ENUM_Fortran) || (((void *)(PETSC_UINTPTR_T)a) == (void *)-50))
 84: #define FORTRANNULLCHARACTER(a)      (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_CHARACTER_Fortran)
 85: #define FORTRANNULLFUNCTION(a)       (((void (*)(void))(PETSC_UINTPTR_T)a) == PETSC_NULL_FUNCTION_Fortran)
 86: #define FORTRANNULLOBJECT(a)         (*(void **)(PETSC_UINTPTR_T)a == (void *)0)
 87: #define FORTRANNULLMPICOMM(a)        (((void *)(PETSC_UINTPTR_T)a) == PETSC_NULL_MPI_COMM_Fortran)

 89: /*
 90:     A Fortran object with a value of (void*) 0 is indicated in Fortran by PETSC_NULL_XXXX, it is passed to routines to indicate the argument value is not requested or provided
 91:     similar to how NULL is used with PETSc objects in C

 93:     A Fortran object with a value of (void*) PETSC_FORTRAN_TYPE_INITIALIZE (-2) is an object that was never created or was destroyed (see checkFortranTypeInitialize()).

 95:     A Fortran object with a value of (void*) -3 happens when a PETSc routine returns in one of its arguments a NULL object
 96:     (it cannot return a value of (void*) 0 because if later the returned variable is passed to a creation routine, it would think one has passed in a PETSC_NULL_XXX and error).

 98:     These three values are used because Fortran always uses pass by reference so one cannot pass a NULL address, only an address with special
 99:     values at the location.
100: */

102: #define CHKFORTRANNULL(a) \
103:   do { \
104:     if (FORTRANNULLINTEGER(a) || FORTRANNULLENUM(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLSCALAR(a) || FORTRANNULLREAL(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) a = PETSC_NULLPTR; \
105:   } while (0)

107: #define CHKFORTRANNULLENUM(a) \
108:   do { \
109:     if (FORTRANNULLENUM(a)) a = PETSC_NULLPTR; \
110:   } while (0)

112: #define CHKFORTRANNULLINTEGER(a) \
113:   do { \
114:     if (FORTRANNULLINTEGER(a) || FORTRANNULLENUM(a)) a = PETSC_NULLPTR; \
115:     else if (FORTRANNULLDOUBLE(a) || FORTRANNULLSCALAR(a) || FORTRANNULLREAL(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
116:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_INTEGER"); \
117:       *ierr = PETSC_ERR_ARG_BADPTR; \
118:       return; \
119:     } \
120:   } while (0)

122: #define CHKFORTRANNULLSCALAR(a) \
123:   do { \
124:     if (FORTRANNULLSCALAR(a)) { \
125:       a = PETSC_NULLPTR; \
126:     } else if (FORTRANNULLINTEGER(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLREAL(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
127:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_SCALAR"); \
128:       *ierr = PETSC_ERR_ARG_BADPTR; \
129:       return; \
130:     } \
131:   } while (0)

133: #define CHKFORTRANNULLDOUBLE(a) \
134:   do { \
135:     if (FORTRANNULLDOUBLE(a)) { \
136:       a = PETSC_NULLPTR; \
137:     } else if (FORTRANNULLINTEGER(a) || FORTRANNULLSCALAR(a) || FORTRANNULLREAL(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
138:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_DOUBLE"); \
139:       *ierr = PETSC_ERR_ARG_BADPTR; \
140:       return; \
141:     } \
142:   } while (0)

144: #define CHKFORTRANNULLREAL(a) \
145:   do { \
146:     if (FORTRANNULLREAL(a)) { \
147:       a = PETSC_NULLPTR; \
148:     } else if (FORTRANNULLINTEGER(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLSCALAR(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
149:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_REAL"); \
150:       *ierr = PETSC_ERR_ARG_BADPTR; \
151:       return; \
152:     } \
153:   } while (0)

155: #define CHKFORTRANNULLOBJECT(a) \
156:   do { \
157:     if (!(*(void **)a)) { \
158:       a = PETSC_NULLPTR; \
159:     } else if (FORTRANNULLINTEGER(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLSCALAR(a) || FORTRANNULLREAL(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
160:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_XXX where XXX is the name of a particular object class"); \
161:       *ierr = PETSC_ERR_ARG_BADPTR; \
162:       return; \
163:     } \
164:   } while (0)

166: #define CHKFORTRANNULLBOOL(a) \
167:   do { \
168:     if (FORTRANNULLBOOL(a)) { \
169:       a = PETSC_NULLPTR; \
170:     } else if (FORTRANNULLSCALAR(a) || FORTRANNULLINTEGER(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLSCALAR(a) || FORTRANNULLREAL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
171:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_BOOL"); \
172:       *ierr = PETSC_ERR_ARG_BADPTR; \
173:       return; \
174:     } \
175:   } while (0)

177: #define CHKFORTRANNULLFUNCTION(a) \
178:   do { \
179:     if (FORTRANNULLFUNCTION(a)) { \
180:       a = PETSC_NULLPTR; \
181:     } else if (FORTRANNULLOBJECT(a) || FORTRANNULLSCALAR(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLREAL(a) || FORTRANNULLINTEGER(a) || FORTRANNULLBOOL(a) || FORTRANNULLCHARACTER(a) || FORTRANNULLMPICOMM(a)) { \
182:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_FUNCTION"); \
183:       *ierr = PETSC_ERR_ARG_BADPTR; \
184:       return; \
185:     } \
186:   } while (0)

188: #define CHKFORTRANNULLMPICOMM(a) \
189:   do { \
190:     if (FORTRANNULLMPICOMM(a)) { \
191:       a = PETSC_NULLPTR; \
192:     } else if (FORTRANNULLINTEGER(a) || FORTRANNULLDOUBLE(a) || FORTRANNULLSCALAR(a) || FORTRANNULLREAL(a) || FORTRANNULLBOOL(a) || FORTRANNULLFUNCTION(a) || FORTRANNULLCHARACTER(a)) { \
193:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Use PETSC_NULL_MPI_COMM"); \
194:       *ierr = PETSC_ERR_ARG_BADPTR; \
195:       return; \
196:     } \
197:   } while (0)

199: /* In the beginning of Fortran XxxCreate() ensure object is not NULL or already created */
200: #define PETSC_FORTRAN_OBJECT_CREATE(a) \
201:   do { \
202:     if (!(*(void **)a)) { \
203:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Cannot create PETSC_NULL_XXX object"); \
204:       *ierr = PETSC_ERR_ARG_WRONG; \
205:       return; \
206:     } else if (*((void **)(a)) != (void *)-2 && *((void **)(a)) != (void *)-3) { \
207:       *ierr = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_ARG_WRONG, PETSC_ERROR_INITIAL, "Cannot create already existing object"); \
208:       *ierr = PETSC_ERR_ARG_WRONG; \
209:       return; \
210:     } \
211:   } while (0)

213: /*
214:   In the beginning of Fortran XxxDestroy(a), if the input object was destroyed, change it to a PETSc C NULL object so that it won't crash C XxxDestory()
215:   If it is PETSC_NULL_XXX just return since these objects cannot be destroyed
216: */
217: #define PETSC_FORTRAN_OBJECT_F_DESTROYED_TO_C_NULL(a) \
218:   do { \
219:     if (!*(void **)a || *((void **)(a)) == (void *)-2 || *((void **)(a)) == (void *)-3) { \
220:       *ierr = PETSC_SUCCESS; \
221:       return; \
222:     } \
223:   } while (0)

225: /* After C XxxDestroy(a) is called, change a's state from NULL to destroyed, so that it can be used/destroyed again by Fortran.
226:    E.g., in VecScatterCreateToAll(x,vscat,seq,ierr), if seq = PETSC_NULL_VEC, PETSc won't create seq. But if seq is a
227:    destroyed object (e.g., as a result of a previous Fortran VecDestroy), PETSc will create seq.
228: */
229: #define PETSC_FORTRAN_OBJECT_C_NULL_TO_F_DESTROYED(a) \
230:   do { \
231:     *((void **)(a)) = (void *)-2; \
232:   } while (0)

234: /*
235:     Variable type where we stash PETSc object pointers in Fortran.
236: */
237: typedef PETSC_UINTPTR_T PetscFortranAddr;

239: /*
240:     These are used to support the default viewers that are
241:   created at run time, in C using the , trick.

243:     The numbers here must match the numbers in include/petsc/finclude/petscsys.h
244: */
245: #define PETSC_VIEWER_DRAW_WORLD_FORTRAN   4
246: #define PETSC_VIEWER_DRAW_SELF_FORTRAN    5
247: #define PETSC_VIEWER_SOCKET_WORLD_FORTRAN 6
248: #define PETSC_VIEWER_SOCKET_SELF_FORTRAN  7
249: #define PETSC_VIEWER_STDOUT_WORLD_FORTRAN 8
250: #define PETSC_VIEWER_STDOUT_SELF_FORTRAN  9
251: #define PETSC_VIEWER_STDERR_WORLD_FORTRAN 10
252: #define PETSC_VIEWER_STDERR_SELF_FORTRAN  11
253: #define PETSC_VIEWER_BINARY_WORLD_FORTRAN 12
254: #define PETSC_VIEWER_BINARY_SELF_FORTRAN  13
255: #define PETSC_VIEWER_MATLAB_WORLD_FORTRAN 14
256: #define PETSC_VIEWER_MATLAB_SELF_FORTRAN  15

258: #include <petscviewer.h>

260: static inline PetscViewer PetscPatchDefaultViewers(PetscViewer *v)
261: {
262:   if (!v) return PETSC_NULLPTR;
263:   if (!(*(void **)v)) return PETSC_NULLPTR;
264:   switch (*(PetscFortranAddr *)v) {
265:   case PETSC_VIEWER_DRAW_WORLD_FORTRAN:
266:     return PETSC_VIEWER_DRAW_WORLD;
267:   case PETSC_VIEWER_DRAW_SELF_FORTRAN:
268:     return PETSC_VIEWER_DRAW_SELF;

270:   case PETSC_VIEWER_STDOUT_WORLD_FORTRAN:
271:     return PETSC_VIEWER_STDOUT_WORLD;
272:   case PETSC_VIEWER_STDOUT_SELF_FORTRAN:
273:     return PETSC_VIEWER_STDOUT_SELF;

275:   case PETSC_VIEWER_STDERR_WORLD_FORTRAN:
276:     return PETSC_VIEWER_STDERR_WORLD;
277:   case PETSC_VIEWER_STDERR_SELF_FORTRAN:
278:     return PETSC_VIEWER_STDERR_SELF;

280:   case PETSC_VIEWER_BINARY_WORLD_FORTRAN:
281:     return PETSC_VIEWER_BINARY_WORLD;
282:   case PETSC_VIEWER_BINARY_SELF_FORTRAN:
283:     return PETSC_VIEWER_BINARY_SELF;

285: #if defined(PETSC_HAVE_MATLAB)
286:   case PETSC_VIEWER_MATLAB_SELF_FORTRAN:
287:     return PETSC_VIEWER_MATLAB_SELF;
288:   case PETSC_VIEWER_MATLAB_WORLD_FORTRAN:
289:     return PETSC_VIEWER_MATLAB_WORLD;
290: #endif

292: #if defined(PETSC_USE_SOCKET_VIEWER)
293:   case PETSC_VIEWER_SOCKET_WORLD_FORTRAN:
294:     return PETSC_VIEWER_SOCKET_WORLD;
295:   case PETSC_VIEWER_SOCKET_SELF_FORTRAN:
296:     return PETSC_VIEWER_SOCKET_SELF;
297: #endif

299:   default:
300:     return *v;
301:   }
302: }

304: #if defined(PETSC_USE_SOCKET_VIEWER)
305:   #define PetscPatchDefaultViewers_Fortran_Socket(vin, v) \
306:     } \
307:     else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_SOCKET_WORLD_FORTRAN) \
308:     { \
309:       v = PETSC_VIEWER_SOCKET_WORLD; \
310:     } \
311:     else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_SOCKET_SELF_FORTRAN) \
312:     { \
313:       v = PETSC_VIEWER_SOCKET_SELF
314: #else
315:   #define PetscPatchDefaultViewers_Fortran_Socket(vin, v)
316: #endif

318: #define PetscPatchDefaultViewers_Fortran(vin, v) \
319:   do { \
320:     if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_DRAW_WORLD_FORTRAN) { \
321:       v = PETSC_VIEWER_DRAW_WORLD; \
322:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_DRAW_SELF_FORTRAN) { \
323:       v = PETSC_VIEWER_DRAW_SELF; \
324:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_STDOUT_WORLD_FORTRAN) { \
325:       v = PETSC_VIEWER_STDOUT_WORLD; \
326:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_STDOUT_SELF_FORTRAN) { \
327:       v = PETSC_VIEWER_STDOUT_SELF; \
328:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_STDERR_WORLD_FORTRAN) { \
329:       v = PETSC_VIEWER_STDERR_WORLD; \
330:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_STDERR_SELF_FORTRAN) { \
331:       v = PETSC_VIEWER_STDERR_SELF; \
332:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_BINARY_WORLD_FORTRAN) { \
333:       v = PETSC_VIEWER_BINARY_WORLD; \
334:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_BINARY_SELF_FORTRAN) { \
335:       v = PETSC_VIEWER_BINARY_SELF; \
336:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_MATLAB_WORLD_FORTRAN) { \
337:       v = PETSC_VIEWER_BINARY_WORLD; \
338:     } else if ((*(PetscFortranAddr *)vin) == PETSC_VIEWER_MATLAB_SELF_FORTRAN) { \
339:       v = PETSC_VIEWER_BINARY_SELF; \
340:       PetscPatchDefaultViewers_Fortran_Socket(vin, v); \
341:     } else { \
342:       v = *vin; \
343:     } \
344:   } while (0)

346: /*
347:       Allocates enough space to store Fortran function pointers in PETSc object
348:    that are needed by the Fortran interface.
349: */
350: #define PetscObjectAllocateFortranPointers(obj, N) \
351:   do { \
352:     if (!((PetscObject)(obj))->fortran_func_pointers) { \
353:       *ierr = PetscCalloc((N) * sizeof(void (*)(void)), &((PetscObject)(obj))->fortran_func_pointers); \
354:       if (*ierr) return; \
355:       ((PetscObject)obj)->num_fortran_func_pointers = (N); \
356:     } \
357:   } while (0)

359: #define PetscCallFortranVoidFunction(...) \
360:   do { \
361:     PetscErrorCode ierr = PETSC_SUCCESS; \
362:     /* the function may or may not access ierr */ \
363:     __VA_ARGS__; \
364:     PetscCall(ierr); \
365:   } while (0)

367: /* Entire function body, _ctx is a "special" variable that can be passed along */
368: #define PetscObjectUseFortranCallback_Private(obj, cid, types, args, cbclass) \
369:   do { \
370:     void(*func) types, *_ctx; \
371:     PetscFunctionBegin; \
372:     PetscCall(PetscObjectGetFortranCallback((PetscObject)(obj), (cbclass), (cid), (PetscVoidFn **)&func, &_ctx)); \
373:     if (func) PetscCallFortranVoidFunction((*func)args); \
374:     PetscFunctionReturn(PETSC_SUCCESS); \
375:   } while (0)
376: #define PetscObjectUseFortranCallback(obj, cid, types, args)        PetscObjectUseFortranCallback_Private(obj, cid, types, args, PETSC_FORTRAN_CALLBACK_CLASS)
377: #define PetscObjectUseFortranCallbackSubType(obj, cid, types, args) PetscObjectUseFortranCallback_Private(obj, cid, types, args, PETSC_FORTRAN_CALLBACK_SUBTYPE)

379: /* Disable deprecation warnings while building Fortran wrappers */
380: #undef PETSC_DEPRECATED_OBJECT
381: #define PETSC_DEPRECATED_OBJECT(...)
382: #undef PETSC_DEPRECATED_FUNCTION
383: #define PETSC_DEPRECATED_FUNCTION(...)
384: #undef PETSC_DEPRECATED_ENUM
385: #define PETSC_DEPRECATED_ENUM(...)
386: #undef PETSC_DEPRECATED_TYPEDEF
387: #define PETSC_DEPRECATED_TYPEDEF(...)
388: #undef PETSC_DEPRECATED_MACRO
389: #define PETSC_DEPRECATED_MACRO(...)

391: /* PGI compilers pass in f90 pointers as 2 arguments */
392: #if defined(PETSC_HAVE_F90_2PTR_ARG)
393:   #define PETSC_F90_2PTR_PROTO_NOVAR , void *
394:   #define PETSC_F90_2PTR_PROTO(ptr)  , void *ptr
395:   #define PETSC_F90_2PTR_PARAM(ptr)  , ptr
396: #else
397:   #define PETSC_F90_2PTR_PROTO_NOVAR
398:   #define PETSC_F90_2PTR_PROTO(ptr)
399:   #define PETSC_F90_2PTR_PARAM(ptr)
400: #endif

402: typedef struct {
403:   char dummy;
404: } F90Array1d;
405: typedef struct {
406:   char dummy;
407: } F90Array2d;
408: typedef struct {
409:   char dummy;
410: } F90Array3d;
411: typedef struct {
412:   char dummy;
413: } F90Array4d;

415: PETSC_EXTERN PetscErrorCode F90Array1dCreate(void *, MPI_Datatype, PetscInt, PetscInt, F90Array1d *PETSC_F90_2PTR_PROTO_NOVAR);
416: PETSC_EXTERN PetscErrorCode F90Array1dAccess(F90Array1d *, MPI_Datatype, void **PETSC_F90_2PTR_PROTO_NOVAR);
417: PETSC_EXTERN PetscErrorCode F90Array1dDestroy(F90Array1d *, MPI_Datatype PETSC_F90_2PTR_PROTO_NOVAR);

419: PETSC_EXTERN PetscErrorCode F90Array2dCreate(void *, MPI_Datatype, PetscInt, PetscInt, PetscInt, PetscInt, F90Array2d *PETSC_F90_2PTR_PROTO_NOVAR);
420: PETSC_EXTERN PetscErrorCode F90Array2dAccess(F90Array2d *, MPI_Datatype, void **PETSC_F90_2PTR_PROTO_NOVAR);
421: PETSC_EXTERN PetscErrorCode F90Array2dDestroy(F90Array2d *, MPI_Datatype PETSC_F90_2PTR_PROTO_NOVAR);

423: PETSC_EXTERN PetscErrorCode F90Array3dCreate(void *, MPI_Datatype, PetscInt, PetscInt, PetscInt, PetscInt, PetscInt, PetscInt, F90Array3d *PETSC_F90_2PTR_PROTO_NOVAR);
424: PETSC_EXTERN PetscErrorCode F90Array3dAccess(F90Array3d *, MPI_Datatype, void **PETSC_F90_2PTR_PROTO_NOVAR);
425: PETSC_EXTERN PetscErrorCode F90Array3dDestroy(F90Array3d *, MPI_Datatype PETSC_F90_2PTR_PROTO_NOVAR);

427: PETSC_EXTERN PetscErrorCode F90Array4dCreate(void *, MPI_Datatype, PetscInt, PetscInt, PetscInt, PetscInt, PetscInt, PetscInt, PetscInt, PetscInt, F90Array4d *PETSC_F90_2PTR_PROTO_NOVAR);
428: PETSC_EXTERN PetscErrorCode F90Array4dAccess(F90Array4d *, MPI_Datatype, void **PETSC_F90_2PTR_PROTO_NOVAR);
429: PETSC_EXTERN PetscErrorCode F90Array4dDestroy(F90Array4d *, MPI_Datatype PETSC_F90_2PTR_PROTO_NOVAR);

431: /*
432:   F90Array1dCreate - Given a C pointer to a one dimensional
433:   array and its length; this fills in the appropriate Fortran 90
434:   pointer data structure.

436:   Input Parameters:
437: +   array - regular C pointer (address)
438: .   type  - DataType of the array
439: .   start - starting index of the array
440: -   len   - length of array (in items)

442:   Output Parameter:
443: .   ptr - Fortran 90 pointer
444: */