1 /* 2 Contains all error handling interfaces for PETSc. 3 */ 4 #pragma once 5 // IWYU pragma: private, include "petscsys.h" 6 7 #include <petscmacros.h> 8 #include <petscsystypes.h> 9 10 #if defined(__cplusplus) 11 #include <exception> // std::exception 12 #endif 13 14 /* SUBMANSEC = Sys */ 15 16 #define SETERRQ1(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 17 #define SETERRQ2(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 18 #define SETERRQ3(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 19 #define SETERRQ4(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 20 #define SETERRQ5(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 21 #define SETERRQ6(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 22 #define SETERRQ7(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 23 #define SETERRQ8(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 24 #define SETERRQ9(...) PETSC_DEPRECATED_MACRO(3, 17, 0, "SETERRQ", ) SETERRQ(__VA_ARGS__) 25 26 /*MC 27 SETERRQ - Macro to be called when an error has been detected, 28 29 Synopsis: 30 #include <petscsys.h> 31 PetscErrorCode SETERRQ(MPI_Comm comm, PetscErrorCode ierr, char *message, ...) 32 33 Collective 34 35 Input Parameters: 36 + comm - An MPI communicator, use `PETSC_COMM_SELF` unless you know all ranks of another communicator will detect the error 37 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 38 - message - error message 39 40 Level: beginner 41 42 Notes: 43 This is rarely needed, one should use `PetscCheck()` and `PetscCall()` and friends to automatically handle error conditions. 44 Once the error handler is called the calling function is then returned from with the given error code. 45 46 Experienced users can set the error handler with `PetscPushErrorHandler()`. 47 48 Fortran Note: 49 `SETERRQ()` may be called from Fortran subroutines but `SETERRA()` must be called from the 50 Fortran main program. 51 52 .seealso: `PetscCheck()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, 53 `PetscError()`, `PetscCall()`, `CHKMEMQ`, `CHKERRA()`, `PetscCallMPI()`, `PetscErrorCode` 54 M*/ 55 #define SETERRQ(comm, ierr, ...) \ 56 do { \ 57 PetscErrorCode ierr_seterrq_petsc_ = PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__); \ 58 return ierr_seterrq_petsc_ ? ierr_seterrq_petsc_ : PETSC_ERR_RETURN; \ 59 } while (0) 60 61 #define SETERRQNULL(comm, ierr, ...) \ 62 do { \ 63 (void)PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__); \ 64 return NULL; \ 65 } while (0) 66 67 /* 68 Returned from PETSc functions that are called from MPI, such as related to attributes 69 Do not confuse PETSC_MPI_ERROR_CODE and PETSC_ERR_MPI, the first is registered with MPI and returned to MPI as 70 an error code, the latter is a regular PETSc error code passed within PETSc code indicating an error was detected in an MPI call. 71 */ 72 PETSC_EXTERN PetscMPIInt PETSC_MPI_ERROR_CLASS; 73 PETSC_EXTERN PetscMPIInt PETSC_MPI_ERROR_CODE; 74 75 /*MC 76 SETERRMPI - Macro to be called when an error has been detected within an MPI callback function 77 78 No Fortran Support 79 80 Synopsis: 81 #include <petscsys.h> 82 PetscErrorCode SETERRMPI(MPI_Comm comm, PetscErrorCode ierr, char *message, ...) 83 84 Collective 85 86 Input Parameters: 87 + comm - An MPI communicator, use `PETSC_COMM_SELF` unless you know all ranks of another communicator will detect the error 88 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 89 - message - error message 90 91 Level: developer 92 93 Note: 94 This macro is FOR USE IN MPI CALLBACK FUNCTIONS ONLY, such as those passed to `MPI_Comm_create_keyval()`. It always returns the error code `PETSC_MPI_ERROR_CODE` 95 which is registered with `MPI_Add_error_code()` when PETSc is initialized. 96 97 .seealso: `SETERRQ()`, `PetscCall()`, `PetscCallMPI()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `PetscErrorCode` 98 M*/ 99 #define SETERRMPI(comm, ierr, ...) return ((void)PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__), PETSC_MPI_ERROR_CODE) 100 101 /*MC 102 SETERRA - Fortran-only macro that can be called when an error has been detected from the main program 103 104 Synopsis: 105 #include <petscsys.h> 106 PetscErrorCode SETERRA(MPI_Comm comm, PetscErrorCode ierr, char *message) 107 108 Collective 109 110 Input Parameters: 111 + comm - An MPI communicator, so that the error can be collective 112 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 113 - message - error message in the `printf()` format 114 115 Level: beginner 116 117 Notes: 118 This should only be used with Fortran. With C/C++, use `SETERRQ()`. 119 120 `SETERRQ()` may be called from Fortran subroutines but `SETERRA()` must be called from the 121 Fortran main program. 122 123 .seealso: `SETERRQ()`, `SETERRABORT()`, `PetscCall()`, `CHKERRA()`, `PetscCallAbort()`, `PetscErrorCode` 124 M*/ 125 126 /*MC 127 SETERRABORT - Macro that can be called when an error has been detected, 128 129 Synopsis: 130 #include <petscsys.h> 131 PetscErrorCode SETERRABORT(MPI_Comm comm, PetscErrorCode ierr, char *message, ...) 132 133 Collective 134 135 Input Parameters: 136 + comm - An MPI communicator, so that the error can be collective 137 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 138 - message - error message in the `printf()` format 139 140 Level: beginner 141 142 Notes: 143 This function just calls `MPI_Abort()`. 144 145 This should only be called in routines that cannot return an error code, such as in C++ constructors. 146 147 Fortran Note: 148 Use `SETERRA()` in Fortran main program and `SETERRQ()` in Fortran subroutines 149 150 Developer Note: 151 In Fortran `SETERRA()` could be called `SETERRABORT()` since they serve the same purpose 152 153 .seealso: `SETERRQ()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `PetscCall()`, `CHKMEMQ`, `PetscErrorCode` 154 M*/ 155 #define SETERRABORT(comm, ierr, ...) \ 156 do { \ 157 (void)PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__); \ 158 (void)MPI_Abort(comm, ierr); \ 159 } while (0) 160 161 /*MC 162 PetscCheck - Checks that a particular condition is true; if not true, then returns the provided error code 163 164 Synopsis: 165 #include <petscsys.h> 166 void PetscCheck(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...) 167 168 Collective; No Fortran Support 169 170 Input Parameters: 171 + cond - The boolean condition 172 . comm - The communicator on which the check can be collective on 173 . ierr - A nonzero error code, see include/petscerror.h for the complete list 174 - message - Error message in the `printf()` format 175 176 Level: beginner 177 178 Notes: 179 Enabled in both optimized and debug builds. 180 181 As a general rule, `PetscCheck()` is used to check "usage error" (for example, passing an incorrect value as a function argument), 182 `PetscAssert()` is used to "check for bugs in PETSc" (for example, is a value in a PETSc data structure nonsensical). 183 However, for functions that are called in a "hot spot", for example, thousands of times in a loop, `PetscAssert()` should be used instead 184 of `PetscCheck()` since the former is compiled out in PETSc's optimization code. 185 186 Calls `SETERRQ()` if the assertion fails, so can only be called from functions returning a 187 `PetscErrorCode` (or equivalent type after conversion). 188 189 .seealso: `PetscAssert()`, `PetscCheckReturnMPI()`, `SETERRQ()`, `PetscError()`, `PetscCall()`, `PetscCheckAbort()`, `PetscErrorCode` 190 M*/ 191 #define PetscCheck(cond, comm, ierr, ...) \ 192 do { \ 193 if (PetscUnlikely(!(cond))) SETERRQ(comm, ierr, __VA_ARGS__); \ 194 } while (0) 195 196 /*MC 197 PetscCheckReturnMPI - Checks that a particular condition is true; if not true, then returns an MPI error code. 198 To check for errors in PETSc-provided MPI callbacks. 199 200 Synopsis: 201 #include <petscsys.h> 202 void PetscCheckReturnMPI(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...) 203 204 Collective; No Fortran Support 205 206 Input Parameters: 207 + cond - The boolean condition 208 . comm - The communicator on which the check can be collective on 209 . ierr - A nonzero error code, see include/petscerror.h for the complete list 210 - message - Error message in the `printf()` format 211 212 Level: beginner 213 214 Note: 215 Enabled in both optimized and debug builds. 216 217 .seealso: `PetscCheck()`, `PetscAssert()`, `SETERRQ()`, `PetscError()`, `PetscCall()`, `PetscCheckAbort()`, `PetscErrorCode` 218 M*/ 219 #define PetscCheckReturnMPI(cond, comm, ierr, ...) \ 220 do { \ 221 if (PetscUnlikely(!(cond))) SETERRMPI(comm, ierr, __VA_ARGS__); \ 222 } while (0) 223 224 /*MC 225 PetscCheckAbort - Check that a particular condition is true, otherwise prints error and aborts 226 227 Synopsis: 228 #include <petscsys.h> 229 void PetscCheckAbort(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...) 230 231 Collective; No Fortran Support 232 233 Input Parameters: 234 + cond - The boolean condition 235 . comm - The communicator on which the check can be collective on 236 . ierr - A nonzero error code, see include/petscerror.h for the complete list 237 - message - Error message in the `printf()` format 238 239 Level: developer 240 241 Notes: 242 Enabled in both optimized and debug builds. 243 244 Calls `SETERRABORT()` if the assertion fails, can be called from a function that does not return an 245 error code, such as a C++ constructor. usually `PetscCheck()` should be used. 246 247 .seealso: `PetscAssertAbort()`, `PetscAssert()`, `SETERRQ()`, `PetscError()`, `PetscCall()`, `PetscCheck()`, `SETERRABORT()`, `PetscErrorCode` 248 M*/ 249 #define PetscCheckAbort(cond, comm, ierr, ...) \ 250 do { \ 251 if (PetscUnlikely(!(cond))) SETERRABORT(comm, ierr, __VA_ARGS__); \ 252 } while (0) 253 254 /*MC 255 PetscAssert - Assert that a particular condition is true 256 257 Synopsis: 258 #include <petscsys.h> 259 void PetscAssert(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...) 260 261 Collective; No Fortran Support 262 263 Input Parameters: 264 + cond - The boolean condition 265 . comm - The communicator on which the check can be collective on 266 . ierr - A nonzero error code, see include/petscerror.h for the complete list 267 - message - Error message in `printf()` format 268 269 Level: beginner 270 271 Notes: 272 Equivalent to `PetscCheck()` if debugging is enabled, and `PetscAssume(cond)` otherwise. 273 274 See `PetscCheck()` for usage and behaviour. 275 276 This is needed instead of simply using `assert()` because this correctly handles the collective nature of errors under MPI 277 278 .seealso: `PetscCheck()`, `SETERRQ()`, `PetscError()`, `PetscAssertAbort()`, `PetscErrorCode` 279 M*/ 280 #if PetscDefined(USE_DEBUG) 281 #define PetscAssert(cond, comm, ierr, ...) PetscCheck(cond, comm, ierr, __VA_ARGS__) 282 #else 283 #define PetscAssert(cond, ...) PetscAssume(cond) 284 #endif 285 286 /*MC 287 PetscAssertAbort - Assert that a particular condition is true, otherwise prints error and aborts 288 289 Synopsis: 290 #include <petscsys.h> 291 void PetscAssertAbort(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...) 292 293 Collective; No Fortran Support 294 295 Input Parameters: 296 + cond - The boolean condition 297 . comm - The communicator on which the check can be collective on 298 . ierr - A nonzero error code, see include/petscerror.h for the complete list 299 - message - Error message in the `printf()` format 300 301 Level: beginner 302 303 Note: 304 Enabled only in debug builds. See `PetscCheckAbort()` for usage. 305 306 .seealso: `PetscCheckAbort()`, `PetscAssert()`, `PetscCheck()`, `SETERRABORT()`, `PetscError()` 307 M*/ 308 #if PetscDefined(USE_DEBUG) 309 #define PetscAssertAbort(cond, comm, ierr, ...) PetscCheckAbort(cond, comm, ierr, __VA_ARGS__) 310 #else 311 #define PetscAssertAbort(cond, comm, ierr, ...) PetscAssume(cond) 312 #endif 313 314 /*MC 315 PetscCall - Calls a PETSc function and then checks the resulting error code, if it is 316 non-zero it calls the error handler and returns from the current function with the error 317 code. 318 319 Synopsis: 320 #include <petscsys.h> 321 void PetscCall(PetscFunction(args)) 322 323 Not Collective 324 325 Input Parameter: 326 . PetscFunction - any PETSc function that returns an error code 327 328 Level: beginner 329 330 Notes: 331 Once the error handler is called the calling function is then returned from with the given 332 error code. Experienced users can set the error handler with `PetscPushErrorHandler()`. 333 334 `PetscCall()` cannot be used in functions returning a datatype not convertible to 335 `PetscErrorCode`. For example, `PetscCall()` may not be used in functions returning `void`, use 336 `PetscCallAbort()` or `PetscCallVoid()` in this case. 337 338 Example Usage: 339 .vb 340 PetscCall(PetscInitiailize(...)); // OK to call even when PETSc is not yet initialized! 341 342 struct my_struct 343 { 344 void *data; 345 } my_complex_type; 346 347 struct my_struct bar(void) 348 { 349 PetscCall(foo(15)); // ERROR PetscErrorCode not convertible to struct my_struct! 350 } 351 352 PetscCall(bar()) // ERROR input not convertible to PetscErrorCode 353 .ve 354 355 It is also possible to call this directly on a `PetscErrorCode` variable 356 .vb 357 PetscCall(ierr); // check if ierr is nonzero 358 .ve 359 360 Should not be used to call callback functions provided by users, `PetscCallBack()` should be used in that situation. 361 362 `PetscUseTypeMethod()` or `PetscTryTypeMethod()` should be used when calling functions pointers contained in a PETSc object's `ops` array 363 364 Fortran Notes: 365 The Fortran function in which this is used must declare a `PetscErrorCode` variable necessarily named `ierr`, and `ierr` must be 366 the final argument to the PETSc function being called. 367 368 In the main program and in Fortran subroutines that do not have `ierr` as the final return parameter, one 369 should use `PetscCallA()` 370 371 Example Fortran Usage: 372 .vb 373 PetscErrorCode ierr 374 Vec v 375 376 ... 377 PetscCall(VecShift(v, 1.0, ierr)) 378 PetscCallA(VecShift(v, 1.0, ierr)) 379 .ve 380 381 .seealso: `SETERRQ()`, `PetscCheck()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscCallMPI()`, 382 `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `CHKERRA()`, 383 `CHKERRMPI()`, `PetscCallBack()`, `PetscCallAbort()`, `PetscCallVoid()`, `PetscCallNull()` 384 M*/ 385 386 /*MC 387 PetscCallNull - Calls a PETSc function and then checks the resulting error code, if it is 388 non-zero it calls the error handler and returns a `NULL` 389 390 Synopsis: 391 #include <petscsys.h> 392 void PetscCallNull(PetscFunction(args)) 393 394 Not Collective; No Fortran Support 395 396 Input Parameter: 397 . PetscFunction - any PETSc function that returns something that can be returned as a `NULL` 398 399 Level: developer 400 401 .seealso: `PetscCall()`, `SETERRQ()`, `PetscCheck()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscCallMPI()`, 402 `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `CHKERRA()`, 403 `CHKERRMPI()`, `PetscCallBack()`, `PetscCallAbort()`, `PetscCallVoid()`, `PetscCall()` 404 M*/ 405 406 /*MC 407 PetscCallA - Fortran-only macro that should be used in the main program and subroutines that do not have `ierr` as the final return parameter, to call PETSc functions instead of using 408 `PetscCall()` which should be used in other Fortran subroutines 409 410 Synopsis: 411 #include <petscsys.h> 412 PetscErrorCode PetscCallA(PetscFunction(arguments, ierr)) 413 414 Collective 415 416 Input Parameter: 417 . PetscFunction(arguments,ierr) - the call to the function 418 419 Level: beginner 420 421 Notes: 422 This should only be used with Fortran. With C/C++, use `PetscCall()` always. 423 424 The Fortran function in which this is used must declare a `PetscErrorCode` variable necessarily named `ierr` 425 Use `SETERRA()` to set an error in a Fortran main program and `SETERRQ()` in Fortran subroutines 426 427 .seealso: `SETERRQ()`, `SETERRA()`, `SETERRABORT()`, `PetscCall()`, `CHKERRA()`, `PetscCallAbort()` 428 M*/ 429 430 /*MC 431 PetscCallBack - Calls a user provided PETSc callback function and then checks the resulting error code, if it is non-zero it calls the error 432 handler and returns from the current function with the error code. 433 434 Synopsis: 435 #include <petscsys.h> 436 void PetscCallBack(const char *functionname, PetscFunction(args)) 437 438 Not Collective; No Fortran Support 439 440 Input Parameters: 441 + functionname - the name of the function being called, this can be a string with spaces that describes the meaning of the callback 442 - PetscFunction - user provided callback function that returns an error code 443 444 Example Usage: 445 .vb 446 PetscCallBack("XXX callback to do something", a->callback(...)); 447 .ve 448 449 Level: developer 450 451 Notes: 452 `PetscUseTypeMethod()` and ` PetscTryTypeMethod()` are the preferred API for this functionality. But when the callback functions are associated with a 453 `DMSNES` or `DMTS` this API must be used. 454 455 Once the error handler is called the calling function is then returned from with the given 456 error code. Experienced users can set the error handler with `PetscPushErrorHandler()`. 457 458 `PetscCallBack()` should only be called in PETSc when a call is being made to a user provided call-back routine. 459 460 Developer Note: 461 It would be good to provide a new API for when the callbacks are associated with `DMSNES` or `DMTS` so this routine could be used less 462 463 .seealso: `SETERRQ()`, `PetscCheck()`, `PetscCall()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscCallMPI()` 464 `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `CHKERRA()`, `CHKERRMPI()`, `PetscCall()`, `PetscUseTypeMethod()`, `PetscTryTypeMethod()` 465 M*/ 466 467 /*MC 468 PetscCallVoid - Like `PetscCall()` but for use in functions that return `void` 469 470 Synopsis: 471 #include <petscsys.h> 472 void PetscCallVoid(PetscFunction(args)) 473 474 Not Collective; No Fortran Support 475 476 Input Parameter: 477 . PetscFunction - any PETSc function that returns an error code 478 479 Example Usage: 480 .vb 481 void foo() 482 { 483 KSP ksp; 484 485 PetscFunctionBeginUser; 486 // OK, properly handles PETSc error codes 487 PetscCallVoid(KSPCreate(PETSC_COMM_WORLD, &ksp)); 488 PetscFunctionReturnVoid(); 489 } 490 491 PetscErrorCode bar() 492 { 493 KSP ksp; 494 495 PetscFunctionBeginUser; 496 // ERROR, Non-void function 'bar' should return a value 497 PetscCallVoid(KSPCreate(PETSC_COMM_WORLD, &ksp)); 498 // OK, returning PetscErrorCode 499 PetscCall(KSPCreate(PETSC_COMM_WORLD, &ksp)); 500 PetscFunctionReturn(PETSC_SUCCESS); 501 } 502 .ve 503 504 Level: beginner 505 506 Notes: 507 Has identical usage to `PetscCall()`, except that it returns `void` on error instead of a 508 `PetscErrorCode`. See `PetscCall()` for more detailed discussion. 509 510 Note that users should prefer `PetscCallAbort()` to this routine. While this routine does 511 "handle" errors by returning from the enclosing function, it effectively gobbles the 512 error. Since the enclosing function itself returns `void`, its callers have no way of knowing 513 that the routine returned early due to an error. `PetscCallAbort()` at least ensures that the 514 program crashes gracefully. 515 516 .seealso: `PetscCall()`, `PetscErrorCode`, `PetscCallAbort()`, `PetscCallNull()` 517 M*/ 518 519 /*MC 520 PetscCallReturnMPI - Calls a PETSc function and then checks the resulting error code, if it is 521 non-zero it calls the error handler and returns from the current function with an MPI error code. 522 To check for errors in PETSc provided MPI callbacks. 523 524 Synopsis: 525 #include <petscsys.h> 526 void PetscCallReturnMPI(PetscFunction(args)) 527 528 Not Collective 529 530 Input Parameter: 531 . PetscFunction - any PETSc function that returns an error code 532 533 Level: advanced 534 535 Notes: 536 Note to be confused with `PetscCallMPI()`. 537 538 This is be used in a PETSc-provided MPI callback function, such as `MPI_Comm_delete_attr_function function()`. 539 540 Currently, it always returns `MPI_ERR_OTHER` on failure 541 542 .seealso: `PetscCall()`, `PetscCallMPI()`, `SETERRQ()`, `PetscCheck()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscCallMPI()`, 543 `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `CHKERRA()`, 544 `CHKERRMPI()`, `PetscCallBack()`, `PetscCallAbort()`, `PetscCallVoid()`, `PetscCallNull()` 545 M*/ 546 547 #if defined(PETSC_CLANG_STATIC_ANALYZER) 548 void PetscCall(PetscErrorCode); 549 void PetscCallBack(const char *, PetscErrorCode); 550 void PetscCallVoid(PetscErrorCode); 551 void PetscCallNull(PetscErrorCode); 552 void PetscCallReturnMPI(PetscErrorCode); 553 #else 554 #define PetscCall(...) \ 555 do { \ 556 PetscErrorCode ierr_petsc_call_q_; \ 557 PetscStackUpdateLine; \ 558 ierr_petsc_call_q_ = __VA_ARGS__; \ 559 if (PetscUnlikely(ierr_petsc_call_q_ != PETSC_SUCCESS)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_q_, PETSC_ERROR_REPEAT, " "); \ 560 } while (0) 561 #define PetscCallNull(...) \ 562 do { \ 563 PetscErrorCode ierr_petsc_call_q_; \ 564 PetscStackUpdateLine; \ 565 ierr_petsc_call_q_ = __VA_ARGS__; \ 566 if (PetscUnlikely(ierr_petsc_call_q_ != PETSC_SUCCESS)) { \ 567 (void)PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_PLIB, PETSC_ERROR_INITIAL, " "); \ 568 PetscFunctionReturn(NULL); \ 569 } \ 570 } while (0) 571 #define PetscCallBack(function, ...) \ 572 do { \ 573 PetscErrorCode ierr_petsc_call_q_; \ 574 PetscStackUpdateLine; \ 575 PetscStackPushExternal(function); \ 576 ierr_petsc_call_q_ = __VA_ARGS__; \ 577 PetscStackPop; \ 578 if (PetscUnlikely(ierr_petsc_call_q_ != PETSC_SUCCESS)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_q_, PETSC_ERROR_REPEAT, " "); \ 579 } while (0) 580 #define PetscCallVoid(...) \ 581 do { \ 582 PetscErrorCode ierr_petsc_call_void_; \ 583 PetscStackUpdateLine; \ 584 ierr_petsc_call_void_ = __VA_ARGS__; \ 585 if (PetscUnlikely(ierr_petsc_call_void_ != PETSC_SUCCESS)) { \ 586 (void)PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_void_, PETSC_ERROR_REPEAT, " "); \ 587 return; \ 588 } \ 589 } while (0) 590 #define PetscCallReturnMPI(...) \ 591 do { \ 592 PetscErrorCode ierr_petsc_call_q_; \ 593 PetscStackUpdateLine; \ 594 ierr_petsc_call_q_ = __VA_ARGS__; \ 595 if (PetscUnlikely(ierr_petsc_call_q_ != PETSC_SUCCESS)) { \ 596 (void)PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_q_, PETSC_ERROR_REPEAT, " "); \ 597 return MPI_ERR_OTHER; \ 598 } \ 599 } while (0) 600 #endif 601 602 /*MC 603 CHKERRQ - Checks error code returned from PETSc function 604 605 Synopsis: 606 #include <petscsys.h> 607 void CHKERRQ(PetscErrorCode ierr) 608 609 Not Collective 610 611 Input Parameter: 612 . ierr - nonzero error code 613 614 Level: deprecated 615 616 Note: 617 Deprecated in favor of `PetscCall()`. This routine behaves identically to it. 618 619 .seealso: `PetscCall()` 620 M*/ 621 #define CHKERRQ(...) PetscCall(__VA_ARGS__) 622 #define CHKERRV(...) PetscCallVoid(__VA_ARGS__) 623 624 PETSC_EXTERN void PetscMPIErrorString(PetscMPIInt, size_t, char *); 625 626 /*MC 627 PetscCallMPI - Checks error code returned from MPI calls, if non-zero it calls the error 628 handler and then returns a `PetscErrorCode` 629 630 Synopsis: 631 #include <petscsys.h> 632 void PetscCallMPI(MPI_Function(args)) 633 634 Not Collective 635 636 Input Parameter: 637 . MPI_Function - an MPI function that returns an MPI error code 638 639 Level: beginner 640 641 Notes: 642 Always returns the error code `PETSC_ERR_MPI`; the MPI error code and string are embedded in 643 the string error message. Do not use this to call any other routines (for example PETSc 644 routines), it should only be used for direct MPI calls. The user may configure PETSc with the 645 `--with-strict-petscerrorcode` option to check this at compile-time, otherwise they must 646 check this themselves. 647 648 This routine can only be used in functions returning `PetscErrorCode` themselves. If the 649 calling function returns a different type, use `PetscCallMPIAbort()` instead. 650 651 Example Usage: 652 .vb 653 PetscCallMPI(MPI_Comm_size(...)); // OK, calling MPI function 654 655 PetscCallMPI(PetscFunction(...)); // ERROR, use PetscCall() instead! 656 .ve 657 658 Fortran Notes: 659 The Fortran function from which this is used must declare a variable `PetscErrorCode` ierr and ierr must be 660 the final argument to the MPI function being called. 661 662 In the main program and in Fortran subroutines that do not have ierr as the final return parameter one 663 should use `PetscCallMPIA()` 664 665 Fortran Usage: 666 .vb 667 PetscErrorCode ierr or integer ierr 668 ... 669 PetscCallMPI(MPI_Comm_size(...,ierr)) 670 PetscCallMPIA(MPI_Comm_size(...,ierr)) ! Will abort after calling error handler 671 672 PetscCallMPI(MPI_Comm_size(...,eflag)) ! ERROR, final argument must be ierr 673 .ve 674 675 .seealso: `SETERRMPI()`, `PetscCall()`, `PetscCallReturnMPI()`, `SETERRQ()`, `SETERRABORT()`, `PetscCallAbort()`, 676 `PetscCallMPIAbort()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, 677 `PetscError()`, `CHKMEMQ`, `PetscCallMPINull()` 678 M*/ 679 680 /*MC 681 PetscCallMPIReturnMPI - Checks error code returned from MPI calls, if non-zero it calls the error 682 handler and then returns an MPI error code. To check for errors in PETSc-provided MPI callbacks. 683 684 Synopsis: 685 #include <petscsys.h> 686 void PetscCallMPIReturnMPI(MPI_Function(args)) 687 688 Not Collective 689 690 Input Parameter: 691 . MPI_Function - an MPI function that returns an MPI error code 692 693 Level: advanced 694 695 .seealso: `SETERRMPI()`, `PetscCall()`, `PetscCallMPI()`, `PetscCallReturnMPI()`, `SETERRQ()`, `SETERRABORT()`, `PetscCallAbort()`, 696 `PetscCallMPIAbort()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, 697 `PetscError()`, `CHKMEMQ`, `PetscCallMPINull()` 698 M*/ 699 700 /*MC 701 PetscCallMPINull - Checks error code returned from MPI calls, if non-zero it calls the error 702 handler and then returns a `NULL` 703 704 Synopsis: 705 #include <petscsys.h> 706 void PetscCallMPINull(MPI_Function(args)) 707 708 Not Collective; No Fortran Support 709 710 Input Parameter: 711 . MPI_Function - an MPI function that returns an MPI error code 712 713 Level: beginner 714 715 Notes: 716 Always passes the error code `PETSC_ERR_MPI` to the error handler `PetscError()`; the MPI error code and string are embedded in 717 the string error message. Do not use this to call any other routines (for example PETSc 718 routines), it should only be used for direct MPI calls. 719 720 This routine can only be used in functions returning anything that can be returned as a `NULL` themselves. If the 721 calling function returns a different type, use `PetscCallMPIAbort()` instead. 722 723 Example Usage: 724 .vb 725 PetscCallMPINull(MPI_Comm_size(...)); // OK, calling MPI function 726 727 PetscCallMPI(PetscFunction(...)); // ERROR, use PetscCall() instead! 728 .ve 729 730 .seealso: `SETERRMPI()`, `PetscCall()`, `SETERRQ()`, `SETERRABORT()`, `PetscCallAbort()`, 731 `PetscCallMPIAbort()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, 732 `PetscError()`, `CHKMEMQ`, `PetscCallMPI()` 733 M*/ 734 735 /*MC 736 PetscCallMPIAbort - Like `PetscCallMPI()` but calls `MPI_Abort()` on error 737 738 Synopsis: 739 #include <petscsys.h> 740 void PetscCallMPIAbort(MPI_Comm comm, MPI_Function(args)) 741 742 Not Collective 743 744 Input Parameters: 745 + comm - the MPI communicator to abort on 746 - MPI_Function - an MPI function that returns an MPI error code 747 748 Level: beginner 749 750 Notes: 751 Usage is identical to `PetscCallMPI()`. See `PetscCallMPI()` for detailed discussion. 752 753 This routine may be used in functions returning `void` or other non-`PetscErrorCode` types. 754 755 Fortran Note: 756 In Fortran this is called `PetscCallMPIA()` and is intended to be used in the main program while `PetscCallMPI()` is 757 used in Fortran subroutines. 758 759 Developer Note: 760 This should have the same name in Fortran. 761 762 .seealso: `PetscCallMPI()`, `PetscCallAbort()`, `SETERRABORT()` 763 M*/ 764 #if defined(PETSC_CLANG_STATIC_ANALYZER) 765 void PetscCallMPI(PetscMPIInt); 766 void PetscCallMPIAbort(MPI_Comm, PetscMPIInt); 767 void PetscCallMPINull(PetscMPIInt); 768 #else 769 #define PetscCallMPI_Private(__PETSC_STACK_POP_FUNC__, __SETERR_FUNC__, __COMM__, ...) \ 770 do { \ 771 PetscMPIInt ierr_petsc_call_mpi_; \ 772 PetscStackUpdateLine; \ 773 PetscStackPushExternal("MPI function"); \ 774 { \ 775 ierr_petsc_call_mpi_ = __VA_ARGS__; \ 776 } \ 777 __PETSC_STACK_POP_FUNC__; \ 778 if (PetscUnlikely(ierr_petsc_call_mpi_ != MPI_SUCCESS)) { \ 779 char petsc_mpi_7_errorstring[2 * MPI_MAX_ERROR_STRING]; \ 780 PetscMPIErrorString(ierr_petsc_call_mpi_, 2 * MPI_MAX_ERROR_STRING, (char *)petsc_mpi_7_errorstring); \ 781 __SETERR_FUNC__(__COMM__, PETSC_ERR_MPI, "MPI error %d %s", ierr_petsc_call_mpi_, petsc_mpi_7_errorstring); \ 782 } \ 783 } while (0) 784 785 #define PetscCallMPI(...) PetscCallMPI_Private(PetscStackPop, SETERRQ, PETSC_COMM_SELF, __VA_ARGS__) 786 #define PetscCallMPIReturnMPI(...) PetscCallMPI_Private(PetscStackPopNoCheck(PETSC_FUNCTION_NAME), SETERRMPI, PETSC_COMM_SELF, __VA_ARGS__) 787 #define PetscCallMPIAbort(comm, ...) PetscCallMPI_Private(PetscStackPopNoCheck(PETSC_FUNCTION_NAME), SETERRABORT, comm, __VA_ARGS__) 788 #define PetscCallMPINull(...) PetscCallMPI_Private(PetscStackPopNoCheck(PETSC_FUNCTION_NAME), SETERRQNULL, PETSC_COMM_SELF, __VA_ARGS__) 789 #endif 790 791 /*MC 792 CHKERRMPI - Checks the error code returned from MPI calls, if different from `MPI_SUCCESS` it calls the error handler and then returns 793 794 Synopsis: 795 #include <petscsys.h> 796 void CHKERRMPI(PetscMPIInt ierr) 797 798 Not Collective 799 800 Input Parameter: 801 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 802 803 Level: deprecated 804 805 Note: 806 Deprecated in favor of `PetscCallMPI()`. This routine behaves identically to it. 807 808 .seealso: `PetscCallMPI()` 809 M*/ 810 #define CHKERRMPI(...) PetscCallMPI(__VA_ARGS__) 811 812 /*MC 813 PetscCallAbort - Checks error code returned from PETSc function, if non-zero it aborts immediately by calling `MPI_Abort()` 814 815 Synopsis: 816 #include <petscsys.h> 817 void PetscCallAbort(MPI_Comm comm, PetscErrorCode ierr) 818 819 Collective 820 821 Input Parameters: 822 + comm - the MPI communicator on which to abort 823 - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 824 825 Level: intermediate 826 827 Notes: 828 This macro has identical type and usage semantics to `PetscCall()` with the important caveat 829 that this macro does not return. Instead, if ierr is nonzero it calls the PETSc error handler 830 and then immediately calls `MPI_Abort()`. It can therefore be used anywhere. 831 832 As per `MPI_Abort()` semantics the communicator passed must be valid, although there is currently 833 no attempt made at handling any potential errors from `MPI_Abort()`. Note that while 834 `MPI_Abort()` is required to terminate only those processes which reside on comm, it is often 835 the case that `MPI_Abort()` terminates *all* processes. 836 837 Example Usage: 838 .vb 839 PetscErrorCode boom(void) { return PETSC_ERR_MEM; } 840 841 void foo(void) 842 { 843 PetscCallAbort(PETSC_COMM_WORLD,boom()); // OK, does not return a type 844 } 845 846 double bar(void) 847 { 848 PetscCallAbort(PETSC_COMM_WORLD,boom()); // OK, does not return a type 849 } 850 851 PetscCallAbort(MPI_COMM_NULL,boom()); // ERROR, communicator should be valid 852 853 struct baz 854 { 855 baz() 856 { 857 PetscCallAbort(PETSC_COMM_SELF,boom()); // OK 858 } 859 860 ~baz() 861 { 862 PetscCallAbort(PETSC_COMM_SELF,boom()); // OK (in fact the only way to handle PETSc errors) 863 } 864 }; 865 .ve 866 867 Fortran Note: 868 Use `PetscCallA()`. 869 870 Developer Note: 871 This should have the same name in Fortran as in C. 872 873 .seealso: `SETERRABORT()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, 874 `SETERRQ()`, `CHKMEMQ`, `PetscCallMPI()`, `PetscCallCXXAbort()` 875 M*/ 876 #if defined(PETSC_CLANG_STATIC_ANALYZER) 877 void PetscCallAbort(MPI_Comm, PetscErrorCode); 878 void PetscCallContinue(PetscErrorCode); 879 #else 880 #define PetscCallAbort(comm, ...) \ 881 do { \ 882 PetscErrorCode ierr_petsc_call_abort_; \ 883 PetscStackUpdateLine; \ 884 ierr_petsc_call_abort_ = __VA_ARGS__; \ 885 if (PetscUnlikely(ierr_petsc_call_abort_ != PETSC_SUCCESS)) { \ 886 ierr_petsc_call_abort_ = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_abort_, PETSC_ERROR_REPEAT, " "); \ 887 (void)MPI_Abort(comm, (PetscMPIInt)ierr_petsc_call_abort_); \ 888 } \ 889 } while (0) 890 #define PetscCallContinue(...) \ 891 do { \ 892 PetscErrorCode ierr_petsc_call_continue_; \ 893 PetscStackUpdateLine; \ 894 ierr_petsc_call_continue_ = __VA_ARGS__; \ 895 if (PetscUnlikely(ierr_petsc_call_continue_ != PETSC_SUCCESS)) { \ 896 ierr_petsc_call_continue_ = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_continue_, PETSC_ERROR_REPEAT, " "); \ 897 (void)ierr_petsc_call_continue_; \ 898 } \ 899 } while (0) 900 #endif 901 902 /*MC 903 CHKERRABORT - Checks error code returned from PETSc function. If non-zero it aborts immediately. 904 905 Synopsis: 906 #include <petscsys.h> 907 void CHKERRABORT(MPI_Comm comm, PetscErrorCode ierr) 908 909 Not Collective 910 911 Input Parameters: 912 + comm - the MPI communicator 913 - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 914 915 Level: deprecated 916 917 Note: 918 Deprecated in favor of `PetscCallAbort()`. This routine behaves identically to it. 919 920 .seealso: `PetscCallAbort()`, `PetscErrorCode` 921 M*/ 922 #define CHKERRABORT(comm, ...) PetscCallAbort(comm, __VA_ARGS__) 923 #define CHKERRCONTINUE(...) PetscCallContinue(__VA_ARGS__) 924 925 /*MC 926 CHKERRA - Fortran-only replacement for use of `CHKERRQ()` in the main program, which aborts immediately 927 928 Synopsis: 929 #include <petscsys.h> 930 PetscErrorCode CHKERRA(PetscErrorCode ierr) 931 932 Not Collective 933 934 Input Parameter: 935 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 936 937 Level: deprecated 938 939 Note: 940 This macro is rarely needed, normal usage is `PetscCallA()` in the main Fortran program. 941 942 Developer Note: 943 Why isn't this named `CHKERRABORT()` in Fortran? 944 945 .seealso: `PetscCall()`, `PetscCallA()`, `PetscCallAbort()`, `CHKERRQ()`, `SETERRA()`, `SETERRQ()`, `SETERRABORT()` 946 M*/ 947 948 PETSC_EXTERN PetscBool petscwaitonerrorflg; 949 PETSC_EXTERN PetscBool petscindebugger; 950 PETSC_EXTERN PetscBool petscabortmpifinalize; 951 952 #if defined(PETSC_CLANG_STATIC_ANALYZER) 953 void PETSCABORTWITHERR_Private(MPI_Comm, PetscErrorCode); 954 #else 955 #define PETSCABORTWITHIERR_Private(comm, ierr) \ 956 do { \ 957 PetscMPIInt size_; \ 958 (void)MPI_Comm_size(comm, &size_); \ 959 if (PetscCIEnabledPortableErrorOutput && (size_ == PetscGlobalSize || petscabortmpifinalize) && ierr != PETSC_ERR_SIG) { \ 960 (void)MPI_Finalize(); \ 961 exit(0); \ 962 } else if (PetscCIEnabledPortableErrorOutput && PetscGlobalSize == 1) { \ 963 exit(0); \ 964 } else { \ 965 (void)MPI_Abort(comm, (PetscMPIInt)ierr); \ 966 } \ 967 } while (0) 968 #endif 969 970 /*MC 971 PETSCABORT - Call `MPI_Abort()` with an informative error code 972 973 Synopsis: 974 #include <petscsys.h> 975 PETSCABORT(MPI_Comm comm, PetscErrorCode ierr) 976 977 Collective; No Fortran Support 978 979 Input Parameters: 980 + comm - An MPI communicator, so that the error can be collective 981 - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 982 983 Level: advanced 984 985 Notes: 986 If the option `-start_in_debugger` was used then this calls `abort()` to stop the program in the debugger. 987 988 if `PetscCIEnabledPortableErrorOutput` is set, which means the code is running in the PETSc test harness (make test), 989 and `comm` is `MPI_COMM_WORLD` it strives to exit cleanly without calling `MPI_Abort()` and instead calling `MPI_Finalize()`. 990 991 This is currently only used when an error propagates up to the C `main()` program and is detected by a `PetscCall()`, `PetscCallMPI()`, 992 or is set in `main()` with `SETERRQ()`. Abort calls such as `SETERRABORT()`, 993 `PetscCheckAbort()`, `PetscCallMPIAbort()`, and `PetscCallAbort()` always call `MPI_Abort()` and do not have any special 994 handling for the test harness. 995 996 Developer Note: 997 Should the other abort calls also pass through this call instead of calling `MPI_Abort()` directly? 998 999 .seealso: `PetscError()`, `PetscCall()`, `SETERRABORT()`, `PetscCheckAbort()`, `PetscCallMPIAbort()`, `PetscCall()`, `PetscCallMPI()`, 1000 `PetscCallAbort()`, `MPI_Abort()`, `PetscErrorCode` 1001 M*/ 1002 #if defined(PETSC_CLANG_STATIC_ANALYZER) 1003 void PETSCABORT(MPI_Comm, PetscErrorCode); 1004 #else 1005 #define PETSCABORT(comm, ...) \ 1006 do { \ 1007 PetscErrorCode ierr_petsc_abort_; \ 1008 if (petscwaitonerrorflg) ierr_petsc_abort_ = PetscSleep(1000); \ 1009 if (petscindebugger) abort(); \ 1010 else { \ 1011 ierr_petsc_abort_ = __VA_ARGS__; \ 1012 PETSCABORTWITHIERR_Private(comm, ierr_petsc_abort_); \ 1013 } \ 1014 } while (0) 1015 #endif 1016 1017 #ifdef PETSC_CLANGUAGE_CXX 1018 /*MC 1019 PetscCallThrow - Checks error code, if non-zero it calls the C++ error handler which throws 1020 an exception 1021 1022 Synopsis: 1023 #include <petscsys.h> 1024 void PetscCallThrow(PetscErrorCode ierr) 1025 1026 Not Collective 1027 1028 Input Parameter: 1029 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 1030 1031 Level: beginner 1032 1033 Notes: 1034 Requires PETSc to be configured with clanguage of c++. Throws a std::runtime_error() on error. 1035 1036 Once the error handler throws the exception you can use `PetscCallVoid()` which returns without 1037 an error code (bad idea since the error is ignored) or `PetscCallAbort()` to have `MPI_Abort()` 1038 called immediately. 1039 1040 .seealso: `SETERRQ()`, `PetscCall()`, `SETERRABORT()`, `PetscCallAbort()`, `PetscTraceBackErrorHandler()`, 1041 `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ` 1042 M*/ 1043 #define PetscCallThrow(...) \ 1044 do { \ 1045 PetscStackUpdateLine; \ 1046 PetscErrorCode ierr_petsc_call_throw_ = __VA_ARGS__; \ 1047 if (PetscUnlikely(ierr_petsc_call_throw_ != PETSC_SUCCESS)) PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_throw_, PETSC_ERROR_IN_CXX, PETSC_NULLPTR); \ 1048 } while (0) 1049 1050 /*MC 1051 CHKERRXX - Checks error code, if non-zero it calls the C++ error handler which throws an exception 1052 1053 Synopsis: 1054 #include <petscsys.h> 1055 void CHKERRXX(PetscErrorCode ierr) 1056 1057 Not Collective 1058 1059 Input Parameter: 1060 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 1061 1062 Level: deprecated 1063 1064 Note: 1065 Deprecated in favor of `PetscCallThrow()`. This routine behaves identically to it. 1066 1067 .seealso: `PetscCallThrow()` 1068 M*/ 1069 #define CHKERRXX(...) PetscCallThrow(__VA_ARGS__) 1070 #endif 1071 1072 #define PetscCallCXX_Private(__SETERR_FUNC__, __COMM__, ...) \ 1073 do { \ 1074 PetscStackUpdateLine; \ 1075 try { \ 1076 __VA_ARGS__; \ 1077 } catch (const std::exception &e) { \ 1078 __SETERR_FUNC__(__COMM__, PETSC_ERR_LIB, "%s", e.what()); \ 1079 } \ 1080 } while (0) 1081 1082 /*MC 1083 PetscCallCXX - Checks C++ function calls and if they throw an exception, catch it and then 1084 return a PETSc error code 1085 1086 Synopsis: 1087 #include <petscsys.h> 1088 void PetscCallCXX(...) noexcept; 1089 1090 Not Collective 1091 1092 Input Parameter: 1093 . __VA_ARGS__ - An arbitrary expression 1094 1095 Level: beginner 1096 1097 Notes: 1098 `PetscCallCXX(...)` is a macro replacement for 1099 .vb 1100 try { 1101 __VA_ARGS__; 1102 } catch (const std::exception& e) { 1103 return ConvertToPetscErrorCode(e); 1104 } 1105 .ve 1106 Due to the fact that it catches any (reasonable) exception, it is essentially noexcept. 1107 1108 If you cannot return a `PetscErrorCode` use `PetscCallCXXAbort()` instead. 1109 1110 Example Usage: 1111 .vb 1112 void foo(void) { throw std::runtime_error("error"); } 1113 1114 void bar() 1115 { 1116 PetscCallCXX(foo()); // ERROR bar() does not return PetscErrorCode 1117 } 1118 1119 PetscErrorCode baz() 1120 { 1121 PetscCallCXX(foo()); // OK 1122 1123 PetscCallCXX( 1124 bar(); 1125 foo(); // OK multiple statements allowed 1126 ); 1127 } 1128 1129 struct bop 1130 { 1131 bop() 1132 { 1133 PetscCallCXX(foo()); // ERROR returns PetscErrorCode, cannot be used in constructors 1134 } 1135 }; 1136 1137 // ERROR contains do-while, cannot be used as function-try block 1138 PetscErrorCode qux() PetscCallCXX( 1139 bar(); 1140 baz(); 1141 foo(); 1142 return 0; 1143 ) 1144 .ve 1145 1146 .seealso: `PetscCallCXXAbort()`, `PetscCallThrow()`, `SETERRQ()`, `PetscCall()`, 1147 `SETERRABORT()`, `PetscCallAbort()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, 1148 `PetscError()`, `CHKMEMQ` 1149 M*/ 1150 #define PetscCallCXX(...) PetscCallCXX_Private(SETERRQ, PETSC_COMM_SELF, __VA_ARGS__) 1151 1152 /*MC 1153 PetscCallCXXAbort - Like `PetscCallCXX()` but calls `MPI_Abort()` instead of returning an 1154 error-code 1155 1156 Synopsis: 1157 #include <petscsys.h> 1158 void PetscCallCXXAbort(MPI_Comm comm, ...) noexcept; 1159 1160 Collective; No Fortran Support 1161 1162 Input Parameters: 1163 + comm - The MPI communicator to abort on 1164 - __VA_ARGS__ - An arbitrary expression 1165 1166 Level: beginner 1167 1168 Notes: 1169 This macro may be used to check C++ expressions for exceptions in cases where you cannot 1170 return an error code. This includes constructors, destructors, copy/move assignment functions 1171 or constructors among others. 1172 1173 If an exception is caught, the macro calls `SETERRABORT()` on `comm`. The exception must 1174 derive from `std::exception` in order to be caught. 1175 1176 If the routine _can_ return an error-code it is highly advised to use `PetscCallCXX()` 1177 instead. 1178 1179 See `PetscCallCXX()` for additional discussion. 1180 1181 Example Usage: 1182 .vb 1183 class Foo 1184 { 1185 std::vector<int> data_; 1186 1187 public: 1188 // normally std::vector::reserve() may raise an exception, but since we handle it with 1189 // PetscCallCXXAbort() we may mark this routine as noexcept! 1190 Foo() noexcept 1191 { 1192 PetscCallCXXAbort(PETSC_COMM_SELF, data_.reserve(10)); 1193 } 1194 }; 1195 1196 std::vector<int> bar() 1197 { 1198 std::vector<int> v; 1199 1200 PetscFunctionBegin; 1201 // OK! 1202 PetscCallCXXAbort(PETSC_COMM_SELF, v.emplace_back(1)); 1203 PetscFunctionReturn(v); 1204 } 1205 1206 PetscErrorCode baz() 1207 { 1208 std::vector<int> v; 1209 1210 PetscFunctionBegin; 1211 // WRONG! baz() returns a PetscErrorCode, prefer PetscCallCXX() instead 1212 PetscCallCXXAbort(PETSC_COMM_SELF, v.emplace_back(1)); 1213 PetscFunctionReturn(PETSC_SUCCESS); 1214 } 1215 .ve 1216 1217 .seealso: `PetscCallCXX()`, `SETERRABORT()`, `PetscCallAbort()` 1218 M*/ 1219 #define PetscCallCXXAbort(comm, ...) PetscCallCXX_Private(SETERRABORT, comm, __VA_ARGS__) 1220 1221 /*MC 1222 CHKERRCXX - Checks C++ function calls and if they throw an exception, catch it and then 1223 return a PETSc error code 1224 1225 Synopsis: 1226 #include <petscsys.h> 1227 void CHKERRCXX(func) noexcept; 1228 1229 Not Collective 1230 1231 Input Parameter: 1232 . func - C++ function calls 1233 1234 Level: deprecated 1235 1236 Note: 1237 Deprecated in favor of `PetscCallCXX()`. This routine behaves identically to it. 1238 1239 .seealso: `PetscCallCXX()` 1240 M*/ 1241 #define CHKERRCXX(...) PetscCallCXX(__VA_ARGS__) 1242 1243 /*MC 1244 CHKMEMQ - Checks the memory for corruption, calls error handler if any is detected 1245 1246 Synopsis: 1247 #include <petscsys.h> 1248 CHKMEMQ; 1249 1250 Not Collective 1251 1252 Level: beginner 1253 1254 Notes: 1255 We recommend using Valgrind <https://petsc.org/release/faq/#valgrind> or Compute Sanitizer 1256 <https://developer.nvidia.com/compute-sanitizer> on NVIDIA CUDA systems for finding memory problems. The ``CHKMEMQ`` 1257 macro is useful on systems that do not have valgrind, but is not as good as Valgrind or cuda-memcheck. 1258 1259 Must run with the option `-malloc_debug` (`-malloc_test` in debug mode; or if `PetscMallocSetDebug()` called) to enable this option 1260 1261 Once the error handler is called the calling function is then returned from with the given error code. 1262 1263 By defaults prints location where memory that is corrupted was allocated. 1264 1265 Use `CHKMEMA` for functions that return `void` 1266 1267 .seealso: `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `SETERRQ()`, `PetscMallocValidate()` 1268 M*/ 1269 #if defined(PETSC_CLANG_STATIC_ANALYZER) 1270 #define CHKMEMQ 1271 #define CHKMEMA 1272 #else 1273 #define CHKMEMQ \ 1274 do { \ 1275 PetscErrorCode ierr_petsc_memq_ = PetscMallocValidate(__LINE__, PETSC_FUNCTION_NAME, __FILE__); \ 1276 if (PetscUnlikely(ierr_petsc_memq_ != PETSC_SUCCESS)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_memq_, PETSC_ERROR_REPEAT, " "); \ 1277 } while (0) 1278 #define CHKMEMA PetscMallocValidate(__LINE__, PETSC_FUNCTION_NAME, __FILE__) 1279 #endif 1280 1281 /*E 1282 PetscErrorType - passed to the PETSc error handling routines indicating if this is the first or a later call to the error handlers 1283 1284 Level: advanced 1285 1286 Note: 1287 `PETSC_ERROR_IN_CXX` indicates the error was detected in C++ and an exception should be generated 1288 1289 Developer Note: 1290 This is currently used to decide when to print the detailed information about the run in `PetscTraceBackErrorHandler()` 1291 1292 .seealso: `PetscError()`, `SETERRQ()` 1293 E*/ 1294 typedef enum { 1295 PETSC_ERROR_INITIAL = 0, 1296 PETSC_ERROR_REPEAT = 1, 1297 PETSC_ERROR_IN_CXX = 2 1298 } PetscErrorType; 1299 1300 #if defined(__clang_analyzer__) 1301 __attribute__((analyzer_noreturn)) 1302 #endif 1303 PETSC_EXTERN PetscErrorCode PetscError(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, ...) PETSC_ATTRIBUTE_COLD PETSC_ATTRIBUTE_FORMAT(7, 8); 1304 1305 PETSC_EXTERN PetscErrorCode PetscErrorPrintfInitialize(void); 1306 PETSC_EXTERN PetscErrorCode PetscErrorMessage(PetscErrorCode, const char *[], char **); 1307 PETSC_EXTERN PetscErrorCode PetscTraceBackErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1308 PETSC_EXTERN PetscErrorCode PetscIgnoreErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1309 PETSC_EXTERN PetscErrorCode PetscEmacsClientErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1310 PETSC_EXTERN PetscErrorCode PetscMPIAbortErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1311 PETSC_EXTERN PetscErrorCode PetscAbortErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1312 PETSC_EXTERN PetscErrorCode PetscAttachDebuggerErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1313 PETSC_EXTERN PetscErrorCode PetscReturnErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1314 PETSC_EXTERN PetscErrorCode PetscPushErrorHandler(PetscErrorCode (*handler)(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *), void *); 1315 PETSC_EXTERN PetscErrorCode PetscPopErrorHandler(void); 1316 PETSC_EXTERN PetscErrorCode PetscSignalHandlerDefault(int, void *); 1317 PETSC_EXTERN PetscErrorCode PetscPushSignalHandler(PetscErrorCode (*)(int, void *), void *); 1318 PETSC_EXTERN PetscErrorCode PetscPopSignalHandler(void); 1319 PETSC_EXTERN PetscErrorCode PetscCheckPointerSetIntensity(PetscInt); 1320 PETSC_EXTERN void PetscSignalSegvCheckPointerOrMpi(void); 1321 PETSC_DEPRECATED_FUNCTION(3, 13, 0, "PetscSignalSegvCheckPointerOrMpi()", ) static inline void PetscSignalSegvCheckPointer(void) 1322 { 1323 PetscSignalSegvCheckPointerOrMpi(); 1324 } 1325 1326 /*MC 1327 PetscErrorPrintf - Prints error messages. 1328 1329 Synopsis: 1330 #include <petscsys.h> 1331 PetscErrorCode (*PetscErrorPrintf)(const char format[], ...); 1332 1333 Not Collective; No Fortran Support 1334 1335 Input Parameter: 1336 . format - the usual `printf()` format string 1337 1338 Options Database Keys: 1339 + -error_output_stdout - cause error messages to be printed to stdout instead of the (default) stderr 1340 - -error_output_none - to turn off all printing of error messages (does not change the way the error is handled.) 1341 1342 Level: developer 1343 1344 Notes: 1345 Use 1346 .vb 1347 PetscErrorPrintf = PetscErrorPrintfNone; to turn off all printing of error messages (does not change the way the error is handled) and 1348 PetscErrorPrintf = PetscErrorPrintfDefault; to turn it back on or you can use your own function 1349 .ve 1350 Use 1351 .vb 1352 `PETSC_STDERR` = FILE* obtained from a file open etc. to have stderr printed to the file. 1353 `PETSC_STDOUT` = FILE* obtained from a file open etc. to have stdout printed to the file. 1354 .ve 1355 Use 1356 .vb 1357 `PetscPushErrorHandler()` to provide your own error handler that determines what kind of messages to print 1358 .ve 1359 1360 .seealso: `PetscFPrintf()`, `PetscSynchronizedPrintf()`, `PetscHelpPrintf()`, `PetscPrintf()`, `PetscPushErrorHandler()`, `PetscVFPrintf()`, `PetscHelpPrintf()` 1361 M*/ 1362 PETSC_EXTERN PetscErrorCode (*PetscErrorPrintf)(const char[], ...) PETSC_ATTRIBUTE_FORMAT(1, 2); 1363 1364 /*E 1365 PetscFPTrap - types of floating point exceptions that may be trapped 1366 1367 Currently only `PETSC_FP_TRAP_OFF` and `PETSC_FP_TRAP_ON` are handled. All others are treated as `PETSC_FP_TRAP_ON`. 1368 1369 Level: intermediate 1370 1371 .seealso: `PetscSetFPTrap()`, `PetscFPTrapPush()` 1372 E*/ 1373 typedef enum { 1374 PETSC_FP_TRAP_OFF = 0, 1375 PETSC_FP_TRAP_INDIV = 1, 1376 PETSC_FP_TRAP_FLTOPERR = 2, 1377 PETSC_FP_TRAP_FLTOVF = 4, 1378 PETSC_FP_TRAP_FLTUND = 8, 1379 PETSC_FP_TRAP_FLTDIV = 16, 1380 PETSC_FP_TRAP_FLTINEX = 32, 1381 PETSC_FP_TRAP_ON = 63 1382 } PetscFPTrap; 1383 1384 PETSC_EXTERN PetscErrorCode PetscSetFPTrap(PetscFPTrap); 1385 PETSC_EXTERN PetscErrorCode PetscFPTrapPush(PetscFPTrap); 1386 PETSC_EXTERN PetscErrorCode PetscFPTrapPop(void); 1387 PETSC_EXTERN PetscErrorCode PetscDetermineInitialFPTrap(void); 1388 1389 /* 1390 Allows the code to build a stack frame as it runs 1391 */ 1392 1393 #define PETSCSTACKSIZE 64 1394 typedef struct { 1395 const char *function[PETSCSTACKSIZE]; 1396 const char *file[PETSCSTACKSIZE]; 1397 int line[PETSCSTACKSIZE]; 1398 int petscroutine[PETSCSTACKSIZE]; /* 0 external called from PETSc, 1 PETSc functions, 2 PETSc user functions */ 1399 int currentsize; 1400 int hotdepth; 1401 PetscBool check; /* option to check for correct Push/Pop semantics, true for default petscstack but not other stacks */ 1402 } PetscStack; 1403 #if defined(PETSC_USE_DEBUG) && !defined(PETSC_HAVE_THREADSAFETY) 1404 PETSC_EXTERN PetscStack petscstack; 1405 #endif 1406 1407 #if defined(PETSC_SERIALIZE_FUNCTIONS) 1408 #include <petsc/private/petscfptimpl.h> 1409 /* 1410 Registers the current function into the global function pointer to function name table 1411 1412 Have to fix this to handle errors but cannot return error since used in PETSC_VIEWER_DRAW_() etc 1413 */ 1414 #define PetscRegister__FUNCT__() \ 1415 do { \ 1416 static PetscBool __chked = PETSC_FALSE; \ 1417 if (!__chked) { \ 1418 void *ptr; \ 1419 PetscCallAbort(PETSC_COMM_SELF, PetscDLSym(NULL, PETSC_FUNCTION_NAME, &ptr)); \ 1420 __chked = PETSC_TRUE; \ 1421 } \ 1422 } while (0) 1423 #else 1424 #define PetscRegister__FUNCT__() 1425 #endif 1426 1427 #if defined(PETSC_CLANG_STATIC_ANALYZER) || defined(__clang_analyzer__) 1428 #define PetscStackPushNoCheck(funct, petsc_routine, hot) 1429 #define PetscStackUpdateLine 1430 #define PetscStackPushExternal(funct) 1431 #define PetscStackPopNoCheck(funct) 1432 #define PetscStackClearTop 1433 #define PetscFunctionBegin 1434 #define PetscFunctionBeginUser 1435 #define PetscFunctionBeginHot 1436 #define PetscFunctionReturn(...) return __VA_ARGS__ 1437 #define PetscFunctionReturnVoid() return 1438 #define PetscStackPop 1439 #define PetscStackPush(f) 1440 #define PetscStackPush_Private(stack__, file__, func__, line__, petsc_routine__, hot__) \ 1441 (void)file__; \ 1442 (void)func__; \ 1443 (void)line__ 1444 #define PetscStackPop_Private(stack__, func__) (void)func__ 1445 #elif defined(PETSC_USE_DEBUG) && !defined(PETSC_HAVE_THREADSAFETY) 1446 1447 #define PetscStackPush_Private(stack__, file__, func__, line__, petsc_routine__, hot__) \ 1448 do { \ 1449 if (stack__.currentsize < PETSCSTACKSIZE) { \ 1450 stack__.function[stack__.currentsize] = func__; \ 1451 if (petsc_routine__) { \ 1452 stack__.file[stack__.currentsize] = file__; \ 1453 stack__.line[stack__.currentsize] = line__; \ 1454 } else { \ 1455 stack__.file[stack__.currentsize] = PETSC_NULLPTR; \ 1456 stack__.line[stack__.currentsize] = 0; \ 1457 } \ 1458 stack__.petscroutine[stack__.currentsize] = petsc_routine__; \ 1459 } \ 1460 ++stack__.currentsize; \ 1461 stack__.hotdepth += (hot__ || stack__.hotdepth); \ 1462 } while (0) 1463 1464 /* uses PetscCheckAbort() because may be used in a function that does not return an error code */ 1465 #define PetscStackPop_Private(stack__, func__) \ 1466 do { \ 1467 PetscCheckAbort(!stack__.check || stack__.currentsize > 0, PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid stack size %d, pop %s %s:%d.\n", stack__.currentsize, func__, __FILE__, __LINE__); \ 1468 if (--stack__.currentsize < PETSCSTACKSIZE) { \ 1469 PetscCheckAbort(!stack__.check || stack__.petscroutine[stack__.currentsize] != 1 || stack__.function[stack__.currentsize] == func__, PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid stack: push from %s %s:%d. Pop from %s %s:%d.\n", \ 1470 stack__.function[stack__.currentsize], stack__.file[stack__.currentsize], stack__.line[stack__.currentsize], func__, __FILE__, __LINE__); \ 1471 stack__.function[stack__.currentsize] = PETSC_NULLPTR; \ 1472 stack__.file[stack__.currentsize] = PETSC_NULLPTR; \ 1473 stack__.line[stack__.currentsize] = 0; \ 1474 stack__.petscroutine[stack__.currentsize] = 0; \ 1475 } \ 1476 stack__.hotdepth = PetscMax(stack__.hotdepth - 1, 0); \ 1477 } while (0) 1478 1479 /*MC 1480 PetscStackPushNoCheck - Pushes a new function name and line number onto the PETSc default stack that tracks where the running program is 1481 currently in the source code. 1482 1483 Synopsis: 1484 #include <petscsys.h> 1485 void PetscStackPushNoCheck(char *funct,int petsc_routine,PetscBool hot); 1486 1487 Not Collective 1488 1489 Input Parameters: 1490 + funct - the function name 1491 . petsc_routine - 2 user function, 1 PETSc function, 0 some other function 1492 - hot - indicates that the function may be called often so expensive error checking should be turned off inside the function 1493 1494 Level: developer 1495 1496 Notes: 1497 In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has 1498 occurred, for example, when a signal is received without running in the debugger. It is recommended to use the debugger if extensive information is needed to 1499 help debug the problem. 1500 1501 This version does not check the memory corruption (an expensive operation), use `PetscStackPush()` to check the memory. 1502 1503 Use `PetscStackPushExternal()` for a function call that is about to be made to a non-PETSc or user function (such as BLAS etc). 1504 1505 The default stack is a global variable called `petscstack`. 1506 1507 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`, 1508 `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPush()`, `PetscStackPop`, 1509 `PetscStackPushExternal()` 1510 M*/ 1511 #define PetscStackPushNoCheck(funct, petsc_routine, hot) \ 1512 do { \ 1513 PetscStackSAWsTakeAccess(); \ 1514 PetscStackPush_Private(petscstack, __FILE__, funct, __LINE__, petsc_routine, hot); \ 1515 PetscStackSAWsGrantAccess(); \ 1516 } while (0) 1517 1518 /*MC 1519 PetscStackUpdateLine - in a function that has a `PetscFunctionBegin` or `PetscFunctionBeginUser` updates the stack line number to the 1520 current line number. 1521 1522 Synopsis: 1523 #include <petscsys.h> 1524 void PetscStackUpdateLine 1525 1526 Not Collective 1527 1528 Level: developer 1529 1530 Notes: 1531 Using `PetscCall()` and friends automatically handles this process 1532 1533 In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has 1534 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1535 help debug the problem. 1536 1537 The default stack is a global variable called `petscstack`. 1538 1539 This is used by `PetscCall()` and is otherwise not like to be needed 1540 1541 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop`, `PetscCall()` 1542 M*/ 1543 #define PetscStackUpdateLine \ 1544 do { \ 1545 if (petscstack.currentsize > 0 && petscstack.currentsize < PETSCSTACKSIZE && petscstack.function[petscstack.currentsize - 1] == PETSC_FUNCTION_NAME) petscstack.line[petscstack.currentsize - 1] = __LINE__; \ 1546 } while (0) 1547 1548 /*MC 1549 PetscStackPushExternal - Pushes a new function name onto the PETSc default stack that tracks where the running program is 1550 currently in the source code. Does not include the filename or line number since this is called by the calling routine 1551 for non-PETSc or user functions. 1552 1553 Synopsis: 1554 #include <petscsys.h> 1555 void PetscStackPushExternal(char *funct); 1556 1557 Not Collective 1558 1559 Input Parameter: 1560 . funct - the function name 1561 1562 Level: developer 1563 1564 Notes: 1565 Using `PetscCallExternal()` and friends automatically handles this process 1566 1567 In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has 1568 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1569 help debug the problem. 1570 1571 The default stack is a global variable called `petscstack`. 1572 1573 This is to be used when calling an external package function such as a BLAS function. 1574 1575 This also updates the stack line number for the current stack function. 1576 1577 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`, 1578 `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`, `PetscStackPop` 1579 M*/ 1580 #define PetscStackPushExternal(funct) \ 1581 do { \ 1582 PetscStackUpdateLine; \ 1583 PetscStackPushNoCheck(funct, 0, PETSC_TRUE); \ 1584 } while (0) 1585 1586 /*MC 1587 PetscStackPopNoCheck - Pops a function name from the PETSc default stack that tracks where the running program is 1588 currently in the source code. 1589 1590 Synopsis: 1591 #include <petscsys.h> 1592 void PetscStackPopNoCheck(char *funct); 1593 1594 Not Collective 1595 1596 Input Parameter: 1597 . funct - the function name 1598 1599 Level: developer 1600 1601 Notes: 1602 Using `PetscCall()`, `PetscCallExternal()`, `PetscCallBack()` and friends negates the need to call this 1603 1604 In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has 1605 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1606 help debug the problem. 1607 1608 The default stack is a global variable called `petscstack`. 1609 1610 Developer Note: 1611 `PetscStackPopNoCheck()` takes a function argument while `PetscStackPop` does not, this difference is likely just historical. 1612 1613 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop` 1614 M*/ 1615 #define PetscStackPopNoCheck(funct) \ 1616 do { \ 1617 PetscStackSAWsTakeAccess(); \ 1618 PetscStackPop_Private(petscstack, funct); \ 1619 PetscStackSAWsGrantAccess(); \ 1620 } while (0) 1621 1622 #define PetscStackClearTop \ 1623 do { \ 1624 PetscStackSAWsTakeAccess(); \ 1625 if (petscstack.currentsize > 0 && --petscstack.currentsize < PETSCSTACKSIZE) { \ 1626 petscstack.function[petscstack.currentsize] = PETSC_NULLPTR; \ 1627 petscstack.file[petscstack.currentsize] = PETSC_NULLPTR; \ 1628 petscstack.line[petscstack.currentsize] = 0; \ 1629 petscstack.petscroutine[petscstack.currentsize] = 0; \ 1630 } \ 1631 petscstack.hotdepth = PetscMax(petscstack.hotdepth - 1, 0); \ 1632 PetscStackSAWsGrantAccess(); \ 1633 } while (0) 1634 1635 /*MC 1636 PetscFunctionBegin - First executable line of each PETSc function, used for error handling. Final 1637 line of PETSc functions should be `PetscFunctionReturn`(0); 1638 1639 Synopsis: 1640 #include <petscsys.h> 1641 void PetscFunctionBegin; 1642 1643 Not Collective; No Fortran Support 1644 1645 Usage: 1646 .vb 1647 int something; 1648 1649 PetscFunctionBegin; 1650 .ve 1651 1652 Level: developer 1653 1654 Note: 1655 Use `PetscFunctionBeginUser` for application codes. 1656 1657 .seealso: `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()` 1658 1659 M*/ 1660 #define PetscFunctionBegin \ 1661 do { \ 1662 PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 1, PETSC_FALSE); \ 1663 PetscRegister__FUNCT__(); \ 1664 } while (0) 1665 1666 /*MC 1667 PetscFunctionBeginHot - Substitute for `PetscFunctionBegin` to be used in functions that are called in 1668 performance-critical circumstances. Use of this function allows for lighter profiling by default. 1669 1670 Synopsis: 1671 #include <petscsys.h> 1672 void PetscFunctionBeginHot; 1673 1674 Not Collective; No Fortran Support 1675 1676 Usage: 1677 .vb 1678 int something; 1679 1680 PetscFunctionBeginHot; 1681 .ve 1682 1683 Level: developer 1684 1685 .seealso: `PetscFunctionBegin`, `PetscFunctionReturn()`, `PetscStackPushNoCheck()` 1686 1687 M*/ 1688 #define PetscFunctionBeginHot \ 1689 do { \ 1690 PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 1, PETSC_TRUE); \ 1691 PetscRegister__FUNCT__(); \ 1692 } while (0) 1693 1694 /*MC 1695 PetscFunctionBeginUser - First executable line of user provided routines 1696 1697 Synopsis: 1698 #include <petscsys.h> 1699 void PetscFunctionBeginUser; 1700 1701 Not Collective; No Fortran Support 1702 1703 Usage: 1704 .vb 1705 int something; 1706 1707 PetscFunctionBeginUser; 1708 .ve 1709 1710 Level: intermediate 1711 1712 Notes: 1713 Functions that incorporate this must call `PetscFunctionReturn()` instead of return except for main(). 1714 1715 May be used before `PetscInitialize()` 1716 1717 This is identical to `PetscFunctionBegin` except it labels the routine as a user 1718 routine instead of as a PETSc library routine. 1719 1720 .seealso: `PetscFunctionReturn()`, `PetscFunctionBegin`, `PetscFunctionBeginHot`, `PetscStackPushNoCheck()` 1721 M*/ 1722 #define PetscFunctionBeginUser \ 1723 do { \ 1724 PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 2, PETSC_FALSE); \ 1725 PetscRegister__FUNCT__(); \ 1726 } while (0) 1727 1728 /*MC 1729 PetscStackPush - Pushes a new function name and line number onto the PETSc default stack that tracks where the running program is 1730 currently in the source code and verifies the memory is not corrupted. 1731 1732 Synopsis: 1733 #include <petscsys.h> 1734 void PetscStackPush(char *funct) 1735 1736 Not Collective 1737 1738 Input Parameter: 1739 . funct - the function name 1740 1741 Level: developer 1742 1743 Notes: 1744 In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has 1745 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1746 help debug the problem. 1747 1748 The default stack is a global variable called `petscstack`. 1749 1750 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`, 1751 `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`, `PetscStackPop` 1752 M*/ 1753 #define PetscStackPush(n) \ 1754 do { \ 1755 PetscStackPushNoCheck(n, 0, PETSC_FALSE); \ 1756 CHKMEMQ; \ 1757 } while (0) 1758 1759 /*MC 1760 PetscStackPop - Pops a function name from the PETSc default stack that tracks where the running program is 1761 currently in the source code and verifies the memory is not corrupted. 1762 1763 Synopsis: 1764 #include <petscsys.h> 1765 void PetscStackPop 1766 1767 Not Collective 1768 1769 Level: developer 1770 1771 Notes: 1772 In debug mode PETSc maintains a stack of the current function calls that can be used to help to quickly see where a problem has 1773 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1774 help debug the problem. 1775 1776 The default stack is a global variable called `petscstack`. 1777 1778 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPopNoCheck()`, `PetscStackPush()` 1779 M*/ 1780 #define PetscStackPop \ 1781 do { \ 1782 CHKMEMQ; \ 1783 PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \ 1784 } while (0) 1785 1786 /*MC 1787 PetscFunctionReturn - Last executable line of each PETSc function used for error 1788 handling. Replaces `return()`. 1789 1790 Synopsis: 1791 #include <petscsys.h> 1792 void PetscFunctionReturn(...) 1793 1794 Not Collective; No Fortran Support 1795 1796 Level: beginner 1797 1798 Notes: 1799 This routine is a macro, so while it does not "return" anything itself, it does return from 1800 the function in the literal sense. 1801 1802 Usually the return value is the integer literal `0` (for example in any function returning 1803 `PetscErrorCode`), however it is possible to return any arbitrary type. The arguments of 1804 this macro are placed before the `return` statement as-is. 1805 1806 Any routine which returns via `PetscFunctionReturn()` must begin with a corresponding 1807 `PetscFunctionBegin`. 1808 1809 For routines which return `void` use `PetscFunctionReturnVoid()` instead. 1810 1811 Example Usage: 1812 .vb 1813 PetscErrorCode foo(int *x) 1814 { 1815 PetscFunctionBegin; // don't forget the begin! 1816 *x = 10; 1817 PetscFunctionReturn(PETSC_SUCCESS); 1818 } 1819 .ve 1820 1821 May return any arbitrary type\: 1822 .vb 1823 struct Foo 1824 { 1825 int x; 1826 }; 1827 1828 struct Foo make_foo(int value) 1829 { 1830 struct Foo f; 1831 1832 PetscFunctionBegin; 1833 f.x = value; 1834 PetscFunctionReturn(f); 1835 } 1836 .ve 1837 1838 .seealso: `PetscFunctionBegin`, `PetscFunctionBeginUser`, `PetscFunctionReturnVoid()`, 1839 `PetscStackPopNoCheck()` 1840 M*/ 1841 #define PetscFunctionReturn(...) \ 1842 do { \ 1843 PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \ 1844 return __VA_ARGS__; \ 1845 } while (0) 1846 1847 /*MC 1848 PetscFunctionReturnVoid - Like `PetscFunctionReturn()` but returns `void` 1849 1850 Synopsis: 1851 #include <petscsys.h> 1852 void PetscFunctionReturnVoid() 1853 1854 Not Collective 1855 1856 Level: beginner 1857 1858 Note: 1859 Behaves identically to `PetscFunctionReturn()` except that it returns `void`. That is, this 1860 macro culminates with `return`. 1861 1862 Example Usage: 1863 .vb 1864 void foo() 1865 { 1866 PetscFunctionBegin; // must start with PetscFunctionBegin! 1867 bar(); 1868 baz(); 1869 PetscFunctionReturnVoid(); 1870 } 1871 .ve 1872 1873 .seealso: `PetscFunctionReturn()`, `PetscFunctionBegin`, PetscFunctionBeginUser` 1874 M*/ 1875 #define PetscFunctionReturnVoid() \ 1876 do { \ 1877 PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \ 1878 return; \ 1879 } while (0) 1880 #else /* PETSC_USE_DEBUG */ 1881 #define PetscStackPushNoCheck(funct, petsc_routine, hot) 1882 #define PetscStackUpdateLine 1883 #define PetscStackPushExternal(funct) 1884 #define PetscStackPopNoCheck(...) 1885 #define PetscStackClearTop 1886 #define PetscFunctionBegin 1887 #define PetscFunctionBeginUser 1888 #define PetscFunctionBeginHot 1889 #define PetscFunctionReturn(...) return __VA_ARGS__ 1890 #define PetscFunctionReturnVoid() return 1891 #define PetscStackPop CHKMEMQ 1892 #define PetscStackPush(f) CHKMEMQ 1893 #endif /* PETSC_USE_DEBUG */ 1894 1895 #if defined(PETSC_CLANG_STATIC_ANALYZER) 1896 #define PetscStackCallExternalVoid(...) 1897 template <typename F, typename... Args> 1898 void PetscCallExternal(F, Args...); 1899 template <typename F, typename... Args> 1900 void PetscCallExternalAbort(F, Args...); 1901 #else 1902 /*MC 1903 PetscStackCallExternalVoid - Calls an external library routine or user function after pushing the name of the routine on the stack. 1904 1905 Input Parameters: 1906 + name - string that gives the name of the function being called 1907 - routine - actual call to the routine, for example, functionname(a,b) 1908 1909 Level: developer 1910 1911 Notes: 1912 Often one should use `PetscCallExternal()` instead. This routine is intended for external library routines that DO NOT return error codes 1913 1914 In debug mode this also checks the memory for corruption at the end of the function call. 1915 1916 Certain external packages, such as BLAS/LAPACK may have their own macros, `PetscCallBLAS()` for managing the call, error checking, etc. 1917 1918 Developer Note: 1919 This is so that when a user or external library routine results in a crash or corrupts memory, they get blamed instead of PETSc. 1920 1921 .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscCallExternal()`, `PetscCallBLAS()` 1922 @*/ 1923 #define PetscStackCallExternalVoid(name, ...) \ 1924 do { \ 1925 PetscStackPushExternal(name); \ 1926 __VA_ARGS__; \ 1927 PetscStackPop; \ 1928 } while (0) 1929 1930 /*MC 1931 PetscCallExternal - Calls an external library routine that returns an error code after pushing the name of the routine on the stack. 1932 1933 Input Parameters: 1934 + func - name of the routine 1935 - args - arguments to the routine 1936 1937 Level: developer 1938 1939 Notes: 1940 This is intended for external package routines that return error codes. Use `PetscStackCallExternalVoid()` for those that do not. 1941 1942 In debug mode this also checks the memory for corruption at the end of the function call. 1943 1944 Assumes the error return code of the function is an integer and that a value of 0 indicates success 1945 1946 Developer Note: 1947 This is so that when an external package routine results in a crash or corrupts memory, they get blamed instead of PETSc. 1948 1949 .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscStackCallExternalVoid()`, `PetscCallExternalAbort()` 1950 M*/ 1951 #define PetscCallExternal(func, ...) \ 1952 do { \ 1953 PetscStackPush(PetscStringize(func)); \ 1954 int ierr_petsc_call_external_ = (int)func(__VA_ARGS__); \ 1955 PetscStackPop; \ 1956 PetscCheck(ierr_petsc_call_external_ == 0, PETSC_COMM_SELF, PETSC_ERR_LIB, "Error in %s(): error code %d", PetscStringize(func), ierr_petsc_call_external_); \ 1957 } while (0) 1958 1959 /*MC 1960 PetscCallExternalAbort - Calls an external library routine that returns an error code after pushing the name of the routine on the stack. If the external library function return code indicates an error, this prints the error and aborts 1961 1962 Input Parameters: 1963 + func - name of the routine 1964 - args - arguments to the routine 1965 1966 Level: developer 1967 1968 Notes: 1969 This is intended for external package routines that return error codes. Use `PetscStackCallExternalVoid()` for those that do not. 1970 1971 In debug mode this also checks the memory for corruption at the end of the function call. 1972 1973 Assumes the error return code of the function is an integer and that a value of 0 indicates success 1974 1975 Developer Note: 1976 This is so that when an external package routine results in a crash or corrupts memory, they get blamed instead of PETSc. 1977 1978 .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscStackCallExternalVoid()`, `PetscCallExternal()` 1979 M*/ 1980 #define PetscCallExternalAbort(func, ...) \ 1981 do { \ 1982 PetscStackUpdateLine; \ 1983 int ierr_petsc_call_external_ = func(__VA_ARGS__); \ 1984 if (PetscUnlikely(ierr_petsc_call_external_ != 0)) { \ 1985 (void)PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, PETSC_ERR_LIB, PETSC_ERROR_INITIAL, "Error in %s(): error code %d", PetscStringize(func), ierr_petsc_call_external_); \ 1986 PETSCABORTWITHIERR_Private(PETSC_COMM_SELF, PETSC_ERR_LIB); \ 1987 } \ 1988 } while (0) 1989 #endif /* PETSC_CLANG_STATIC_ANALYZER */ 1990