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 error code returned from MPI calls, if non-zero it calls the error 793 handler and then returns 794 795 Synopsis: 796 #include <petscsys.h> 797 void CHKERRMPI(PetscErrorCode ierr) 798 799 Not Collective 800 801 Input Parameter: 802 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 803 804 Level: deprecated 805 806 Note: 807 Deprecated in favor of `PetscCallMPI()`. This routine behaves identically to it. 808 809 .seealso: `PetscCallMPI()` 810 M*/ 811 #define CHKERRMPI(...) PetscCallMPI(__VA_ARGS__) 812 813 /*MC 814 PetscCallAbort - Checks error code returned from PETSc function, if non-zero it aborts immediately by calling `MPI_Abort()` 815 816 Synopsis: 817 #include <petscsys.h> 818 void PetscCallAbort(MPI_Comm comm, PetscErrorCode ierr) 819 820 Collective 821 822 Input Parameters: 823 + comm - the MPI communicator on which to abort 824 - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 825 826 Level: intermediate 827 828 Notes: 829 This macro has identical type and usage semantics to `PetscCall()` with the important caveat 830 that this macro does not return. Instead, if ierr is nonzero it calls the PETSc error handler 831 and then immediately calls `MPI_Abort()`. It can therefore be used anywhere. 832 833 As per `MPI_Abort()` semantics the communicator passed must be valid, although there is currently 834 no attempt made at handling any potential errors from `MPI_Abort()`. Note that while 835 `MPI_Abort()` is required to terminate only those processes which reside on comm, it is often 836 the case that `MPI_Abort()` terminates *all* processes. 837 838 Example Usage: 839 .vb 840 PetscErrorCode boom(void) { return PETSC_ERR_MEM; } 841 842 void foo(void) 843 { 844 PetscCallAbort(PETSC_COMM_WORLD,boom()); // OK, does not return a type 845 } 846 847 double bar(void) 848 { 849 PetscCallAbort(PETSC_COMM_WORLD,boom()); // OK, does not return a type 850 } 851 852 PetscCallAbort(MPI_COMM_NULL,boom()); // ERROR, communicator should be valid 853 854 struct baz 855 { 856 baz() 857 { 858 PetscCallAbort(PETSC_COMM_SELF,boom()); // OK 859 } 860 861 ~baz() 862 { 863 PetscCallAbort(PETSC_COMM_SELF,boom()); // OK (in fact the only way to handle PETSc errors) 864 } 865 }; 866 .ve 867 868 Fortran Note: 869 Use `PetscCallA()`. 870 871 Developer Note: 872 This should have the same name in Fortran as in C. 873 874 .seealso: `SETERRABORT()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, 875 `SETERRQ()`, `CHKMEMQ`, `PetscCallMPI()`, `PetscCallCXXAbort()` 876 M*/ 877 #if defined(PETSC_CLANG_STATIC_ANALYZER) 878 void PetscCallAbort(MPI_Comm, PetscErrorCode); 879 void PetscCallContinue(PetscErrorCode); 880 #else 881 #define PetscCallAbort(comm, ...) \ 882 do { \ 883 PetscErrorCode ierr_petsc_call_abort_; \ 884 PetscStackUpdateLine; \ 885 ierr_petsc_call_abort_ = __VA_ARGS__; \ 886 if (PetscUnlikely(ierr_petsc_call_abort_ != PETSC_SUCCESS)) { \ 887 ierr_petsc_call_abort_ = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_abort_, PETSC_ERROR_REPEAT, " "); \ 888 (void)MPI_Abort(comm, (PetscMPIInt)ierr_petsc_call_abort_); \ 889 } \ 890 } while (0) 891 #define PetscCallContinue(...) \ 892 do { \ 893 PetscErrorCode ierr_petsc_call_continue_; \ 894 PetscStackUpdateLine; \ 895 ierr_petsc_call_continue_ = __VA_ARGS__; \ 896 if (PetscUnlikely(ierr_petsc_call_continue_ != PETSC_SUCCESS)) { \ 897 ierr_petsc_call_continue_ = PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_call_continue_, PETSC_ERROR_REPEAT, " "); \ 898 (void)ierr_petsc_call_continue_; \ 899 } \ 900 } while (0) 901 #endif 902 903 /*MC 904 CHKERRABORT - Checks error code returned from PETSc function. If non-zero it aborts immediately. 905 906 Synopsis: 907 #include <petscsys.h> 908 void CHKERRABORT(MPI_Comm comm, PetscErrorCode ierr) 909 910 Not Collective 911 912 Input Parameters: 913 + comm - the MPI communicator 914 - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 915 916 Level: deprecated 917 918 Note: 919 Deprecated in favor of `PetscCallAbort()`. This routine behaves identically to it. 920 921 .seealso: `PetscCallAbort()`, `PetscErrorCode` 922 M*/ 923 #define CHKERRABORT(comm, ...) PetscCallAbort(comm, __VA_ARGS__) 924 #define CHKERRCONTINUE(...) PetscCallContinue(__VA_ARGS__) 925 926 /*MC 927 CHKERRA - Fortran-only replacement for use of `CHKERRQ()` in the main program, which aborts immediately 928 929 Synopsis: 930 #include <petscsys.h> 931 PetscErrorCode CHKERRA(PetscErrorCode ierr) 932 933 Not Collective 934 935 Input Parameter: 936 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 937 938 Level: deprecated 939 940 Note: 941 This macro is rarely needed, normal usage is `PetscCallA()` in the main Fortran program. 942 943 Developer Note: 944 Why isn't this named `CHKERRABORT()` in Fortran? 945 946 .seealso: `PetscCall()`, `PetscCallA()`, `PetscCallAbort()`, `CHKERRQ()`, `SETERRA()`, `SETERRQ()`, `SETERRABORT()` 947 M*/ 948 949 PETSC_EXTERN PetscBool petscwaitonerrorflg; 950 PETSC_EXTERN PetscBool petscindebugger; 951 PETSC_EXTERN PetscBool petscabortmpifinalize; 952 953 #if defined(PETSC_CLANG_STATIC_ANALYZER) 954 void PETSCABORTWITHERR_Private(MPI_Comm, PetscErrorCode); 955 #else 956 #define PETSCABORTWITHIERR_Private(comm, ierr) \ 957 do { \ 958 PetscMPIInt size_; \ 959 (void)MPI_Comm_size(comm, &size_); \ 960 if (PetscCIEnabledPortableErrorOutput && (size_ == PetscGlobalSize || petscabortmpifinalize) && ierr != PETSC_ERR_SIG) { \ 961 (void)MPI_Finalize(); \ 962 exit(0); \ 963 } else if (PetscCIEnabledPortableErrorOutput && PetscGlobalSize == 1) { \ 964 exit(0); \ 965 } else { \ 966 (void)MPI_Abort(comm, (PetscMPIInt)ierr); \ 967 } \ 968 } while (0) 969 #endif 970 971 /*MC 972 PETSCABORT - Call `MPI_Abort()` with an informative error code 973 974 Synopsis: 975 #include <petscsys.h> 976 PETSCABORT(MPI_Comm comm, PetscErrorCode ierr) 977 978 Collective; No Fortran Support 979 980 Input Parameters: 981 + comm - An MPI communicator, so that the error can be collective 982 - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 983 984 Level: advanced 985 986 Notes: 987 If the option `-start_in_debugger` was used then this calls `abort()` to stop the program in the debugger. 988 989 if `PetscCIEnabledPortableErrorOutput` is set, which means the code is running in the PETSc test harness (make test), 990 and `comm` is `MPI_COMM_WORLD` it strives to exit cleanly without calling `MPI_Abort()` and instead calling `MPI_Finalize()`. 991 992 This is currently only used when an error propagates up to the C `main()` program and is detected by a `PetscCall()`, `PetscCallMPI()`, 993 or is set in `main()` with `SETERRQ()`. Abort calls such as `SETERRABORT()`, 994 `PetscCheckAbort()`, `PetscCallMPIAbort()`, and `PetscCallAbort()` always call `MPI_Abort()` and do not have any special 995 handling for the test harness. 996 997 Developer Note: 998 Should the other abort calls also pass through this call instead of calling `MPI_Abort()` directly? 999 1000 .seealso: `PetscError()`, `PetscCall()`, `SETERRABORT()`, `PetscCheckAbort()`, `PetscCallMPIAbort()`, `PetscCall()`, `PetscCallMPI()`, 1001 `PetscCallAbort()`, `MPI_Abort()`, `PetscErrorCode` 1002 M*/ 1003 #if defined(PETSC_CLANG_STATIC_ANALYZER) 1004 void PETSCABORT(MPI_Comm, PetscErrorCode); 1005 #else 1006 #define PETSCABORT(comm, ...) \ 1007 do { \ 1008 PetscErrorCode ierr_petsc_abort_; \ 1009 if (petscwaitonerrorflg) { ierr_petsc_abort_ = PetscSleep(1000); } \ 1010 if (petscindebugger) { \ 1011 abort(); \ 1012 } else { \ 1013 ierr_petsc_abort_ = __VA_ARGS__; \ 1014 PETSCABORTWITHIERR_Private(comm, ierr_petsc_abort_); \ 1015 } \ 1016 } while (0) 1017 #endif 1018 1019 #ifdef PETSC_CLANGUAGE_CXX 1020 /*MC 1021 PetscCallThrow - Checks error code, if non-zero it calls the C++ error handler which throws 1022 an exception 1023 1024 Synopsis: 1025 #include <petscsys.h> 1026 void PetscCallThrow(PetscErrorCode ierr) 1027 1028 Not Collective 1029 1030 Input Parameter: 1031 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 1032 1033 Level: beginner 1034 1035 Notes: 1036 Requires PETSc to be configured with clanguage of c++. Throws a std::runtime_error() on error. 1037 1038 Once the error handler throws the exception you can use `PetscCallVoid()` which returns without 1039 an error code (bad idea since the error is ignored) or `PetscCallAbort()` to have `MPI_Abort()` 1040 called immediately. 1041 1042 .seealso: `SETERRQ()`, `PetscCall()`, `SETERRABORT()`, `PetscCallAbort()`, `PetscTraceBackErrorHandler()`, 1043 `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ` 1044 M*/ 1045 #define PetscCallThrow(...) \ 1046 do { \ 1047 PetscStackUpdateLine; \ 1048 PetscErrorCode ierr_petsc_call_throw_ = __VA_ARGS__; \ 1049 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); \ 1050 } while (0) 1051 1052 /*MC 1053 CHKERRXX - Checks error code, if non-zero it calls the C++ error handler which throws an exception 1054 1055 Synopsis: 1056 #include <petscsys.h> 1057 void CHKERRXX(PetscErrorCode ierr) 1058 1059 Not Collective 1060 1061 Input Parameter: 1062 . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h 1063 1064 Level: deprecated 1065 1066 Note: 1067 Deprecated in favor of `PetscCallThrow()`. This routine behaves identically to it. 1068 1069 .seealso: `PetscCallThrow()` 1070 M*/ 1071 #define CHKERRXX(...) PetscCallThrow(__VA_ARGS__) 1072 #endif 1073 1074 #define PetscCallCXX_Private(__SETERR_FUNC__, __COMM__, ...) \ 1075 do { \ 1076 PetscStackUpdateLine; \ 1077 try { \ 1078 __VA_ARGS__; \ 1079 } catch (const std::exception &e) { \ 1080 __SETERR_FUNC__(__COMM__, PETSC_ERR_LIB, "%s", e.what()); \ 1081 } \ 1082 } while (0) 1083 1084 /*MC 1085 PetscCallCXX - Checks C++ function calls and if they throw an exception, catch it and then 1086 return a PETSc error code 1087 1088 Synopsis: 1089 #include <petscsys.h> 1090 void PetscCallCXX(...) noexcept; 1091 1092 Not Collective 1093 1094 Input Parameter: 1095 . __VA_ARGS__ - An arbitrary expression 1096 1097 Level: beginner 1098 1099 Notes: 1100 `PetscCallCXX(...)` is a macro replacement for 1101 .vb 1102 try { 1103 __VA_ARGS__; 1104 } catch (const std::exception& e) { 1105 return ConvertToPetscErrorCode(e); 1106 } 1107 .ve 1108 Due to the fact that it catches any (reasonable) exception, it is essentially noexcept. 1109 1110 If you cannot return a `PetscErrorCode` use `PetscCallCXXAbort()` instead. 1111 1112 Example Usage: 1113 .vb 1114 void foo(void) { throw std::runtime_error("error"); } 1115 1116 void bar() 1117 { 1118 PetscCallCXX(foo()); // ERROR bar() does not return PetscErrorCode 1119 } 1120 1121 PetscErrorCode baz() 1122 { 1123 PetscCallCXX(foo()); // OK 1124 1125 PetscCallCXX( 1126 bar(); 1127 foo(); // OK multiple statements allowed 1128 ); 1129 } 1130 1131 struct bop 1132 { 1133 bop() 1134 { 1135 PetscCallCXX(foo()); // ERROR returns PetscErrorCode, cannot be used in constructors 1136 } 1137 }; 1138 1139 // ERROR contains do-while, cannot be used as function-try block 1140 PetscErrorCode qux() PetscCallCXX( 1141 bar(); 1142 baz(); 1143 foo(); 1144 return 0; 1145 ) 1146 .ve 1147 1148 .seealso: `PetscCallCXXAbort()`, `PetscCallThrow()`, `SETERRQ()`, `PetscCall()`, 1149 `SETERRABORT()`, `PetscCallAbort()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, 1150 `PetscError()`, `CHKMEMQ` 1151 M*/ 1152 #define PetscCallCXX(...) PetscCallCXX_Private(SETERRQ, PETSC_COMM_SELF, __VA_ARGS__) 1153 1154 /*MC 1155 PetscCallCXXAbort - Like `PetscCallCXX()` but calls `MPI_Abort()` instead of returning an 1156 error-code 1157 1158 Synopsis: 1159 #include <petscsys.h> 1160 void PetscCallCXXAbort(MPI_Comm comm, ...) noexcept; 1161 1162 Collective; No Fortran Support 1163 1164 Input Parameters: 1165 + comm - The MPI communicator to abort on 1166 - __VA_ARGS__ - An arbitrary expression 1167 1168 Level: beginner 1169 1170 Notes: 1171 This macro may be used to check C++ expressions for exceptions in cases where you cannot 1172 return an error code. This includes constructors, destructors, copy/move assignment functions 1173 or constructors among others. 1174 1175 If an exception is caught, the macro calls `SETERRABORT()` on `comm`. The exception must 1176 derive from `std::exception` in order to be caught. 1177 1178 If the routine _can_ return an error-code it is highly advised to use `PetscCallCXX()` 1179 instead. 1180 1181 See `PetscCallCXX()` for additional discussion. 1182 1183 Example Usage: 1184 .vb 1185 class Foo 1186 { 1187 std::vector<int> data_; 1188 1189 public: 1190 // normally std::vector::reserve() may raise an exception, but since we handle it with 1191 // PetscCallCXXAbort() we may mark this routine as noexcept! 1192 Foo() noexcept 1193 { 1194 PetscCallCXXAbort(PETSC_COMM_SELF, data_.reserve(10)); 1195 } 1196 }; 1197 1198 std::vector<int> bar() 1199 { 1200 std::vector<int> v; 1201 1202 PetscFunctionBegin; 1203 // OK! 1204 PetscCallCXXAbort(PETSC_COMM_SELF, v.emplace_back(1)); 1205 PetscFunctionReturn(v); 1206 } 1207 1208 PetscErrorCode baz() 1209 { 1210 std::vector<int> v; 1211 1212 PetscFunctionBegin; 1213 // WRONG! baz() returns a PetscErrorCode, prefer PetscCallCXX() instead 1214 PetscCallCXXAbort(PETSC_COMM_SELF, v.emplace_back(1)); 1215 PetscFunctionReturn(PETSC_SUCCESS); 1216 } 1217 .ve 1218 1219 .seealso: `PetscCallCXX()`, `SETERRABORT()`, `PetscCallAbort()` 1220 M*/ 1221 #define PetscCallCXXAbort(comm, ...) PetscCallCXX_Private(SETERRABORT, comm, __VA_ARGS__) 1222 1223 /*MC 1224 CHKERRCXX - Checks C++ function calls and if they throw an exception, catch it and then 1225 return a PETSc error code 1226 1227 Synopsis: 1228 #include <petscsys.h> 1229 void CHKERRCXX(func) noexcept; 1230 1231 Not Collective 1232 1233 Input Parameter: 1234 . func - C++ function calls 1235 1236 Level: deprecated 1237 1238 Note: 1239 Deprecated in favor of `PetscCallCXX()`. This routine behaves identically to it. 1240 1241 .seealso: `PetscCallCXX()` 1242 M*/ 1243 #define CHKERRCXX(...) PetscCallCXX(__VA_ARGS__) 1244 1245 /*MC 1246 CHKMEMQ - Checks the memory for corruption, calls error handler if any is detected 1247 1248 Synopsis: 1249 #include <petscsys.h> 1250 CHKMEMQ; 1251 1252 Not Collective 1253 1254 Level: beginner 1255 1256 Notes: 1257 We recommend using Valgrind <https://petsc.org/release/faq/#valgrind> or for NVIDIA CUDA systems 1258 <https://docs.nvidia.com/cuda/cuda-memcheck/index.html> for finding memory problems. The ``CHKMEMQ`` macro is useful on systems that 1259 do not have valgrind, but is not as good as valgrind or cuda-memcheck. 1260 1261 Must run with the option `-malloc_debug` (`-malloc_test` in debug mode; or if `PetscMallocSetDebug()` called) to enable this option 1262 1263 Once the error handler is called the calling function is then returned from with the given error code. 1264 1265 By defaults prints location where memory that is corrupted was allocated. 1266 1267 Use `CHKMEMA` for functions that return `void` 1268 1269 .seealso: `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `SETERRQ()`, `PetscMallocValidate()` 1270 M*/ 1271 #if defined(PETSC_CLANG_STATIC_ANALYZER) 1272 #define CHKMEMQ 1273 #define CHKMEMA 1274 #else 1275 #define CHKMEMQ \ 1276 do { \ 1277 PetscErrorCode ierr_petsc_memq_ = PetscMallocValidate(__LINE__, PETSC_FUNCTION_NAME, __FILE__); \ 1278 if (PetscUnlikely(ierr_petsc_memq_ != PETSC_SUCCESS)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_petsc_memq_, PETSC_ERROR_REPEAT, " "); \ 1279 } while (0) 1280 #define CHKMEMA PetscMallocValidate(__LINE__, PETSC_FUNCTION_NAME, __FILE__) 1281 #endif 1282 1283 /*E 1284 PetscErrorType - passed to the PETSc error handling routines indicating if this is the first or a later call to the error handlers 1285 1286 Level: advanced 1287 1288 Note: 1289 `PETSC_ERROR_IN_CXX` indicates the error was detected in C++ and an exception should be generated 1290 1291 Developer Note: 1292 This is currently used to decide when to print the detailed information about the run in `PetscTraceBackErrorHandler()` 1293 1294 .seealso: `PetscError()`, `SETERRQ()` 1295 E*/ 1296 typedef enum { 1297 PETSC_ERROR_INITIAL = 0, 1298 PETSC_ERROR_REPEAT = 1, 1299 PETSC_ERROR_IN_CXX = 2 1300 } PetscErrorType; 1301 1302 #if defined(__clang_analyzer__) 1303 __attribute__((analyzer_noreturn)) 1304 #endif 1305 PETSC_EXTERN PetscErrorCode 1306 PetscError(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, ...) PETSC_ATTRIBUTE_COLD PETSC_ATTRIBUTE_FORMAT(7, 8); 1307 1308 PETSC_EXTERN PetscErrorCode PetscErrorPrintfInitialize(void); 1309 PETSC_EXTERN PetscErrorCode PetscErrorMessage(PetscErrorCode, const char *[], char **); 1310 PETSC_EXTERN PetscErrorCode PetscTraceBackErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1311 PETSC_EXTERN PetscErrorCode PetscIgnoreErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1312 PETSC_EXTERN PetscErrorCode PetscEmacsClientErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1313 PETSC_EXTERN PetscErrorCode PetscMPIAbortErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1314 PETSC_EXTERN PetscErrorCode PetscAbortErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1315 PETSC_EXTERN PetscErrorCode PetscAttachDebuggerErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1316 PETSC_EXTERN PetscErrorCode PetscReturnErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD; 1317 PETSC_EXTERN PetscErrorCode PetscPushErrorHandler(PetscErrorCode (*handler)(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *), void *); 1318 PETSC_EXTERN PetscErrorCode PetscPopErrorHandler(void); 1319 PETSC_EXTERN PetscErrorCode PetscSignalHandlerDefault(int, void *); 1320 PETSC_EXTERN PetscErrorCode PetscPushSignalHandler(PetscErrorCode (*)(int, void *), void *); 1321 PETSC_EXTERN PetscErrorCode PetscPopSignalHandler(void); 1322 PETSC_EXTERN PetscErrorCode PetscCheckPointerSetIntensity(PetscInt); 1323 PETSC_EXTERN void PetscSignalSegvCheckPointerOrMpi(void); 1324 PETSC_DEPRECATED_FUNCTION(3, 13, 0, "PetscSignalSegvCheckPointerOrMpi()", ) static inline void PetscSignalSegvCheckPointer(void) 1325 { 1326 PetscSignalSegvCheckPointerOrMpi(); 1327 } 1328 1329 /*MC 1330 PetscErrorPrintf - Prints error messages. 1331 1332 Synopsis: 1333 #include <petscsys.h> 1334 PetscErrorCode (*PetscErrorPrintf)(const char format[], ...); 1335 1336 Not Collective; No Fortran Support 1337 1338 Input Parameter: 1339 . format - the usual `printf()` format string 1340 1341 Options Database Keys: 1342 + -error_output_stdout - cause error messages to be printed to stdout instead of the (default) stderr 1343 - -error_output_none - to turn off all printing of error messages (does not change the way the error is handled.) 1344 1345 Level: developer 1346 1347 Notes: 1348 Use 1349 .vb 1350 PetscErrorPrintf = PetscErrorPrintfNone; to turn off all printing of error messages (does not change the way the error is handled) and 1351 PetscErrorPrintf = PetscErrorPrintfDefault; to turn it back on or you can use your own function 1352 .ve 1353 Use 1354 .vb 1355 `PETSC_STDERR` = FILE* obtained from a file open etc. to have stderr printed to the file. 1356 `PETSC_STDOUT` = FILE* obtained from a file open etc. to have stdout printed to the file. 1357 .ve 1358 Use 1359 .vb 1360 `PetscPushErrorHandler()` to provide your own error handler that determines what kind of messages to print 1361 .ve 1362 1363 .seealso: `PetscFPrintf()`, `PetscSynchronizedPrintf()`, `PetscHelpPrintf()`, `PetscPrintf()`, `PetscPushErrorHandler()`, `PetscVFPrintf()`, `PetscHelpPrintf()` 1364 M*/ 1365 PETSC_EXTERN PetscErrorCode (*PetscErrorPrintf)(const char[], ...) PETSC_ATTRIBUTE_FORMAT(1, 2); 1366 1367 /*E 1368 PetscFPTrap - types of floating point exceptions that may be trapped 1369 1370 Currently only `PETSC_FP_TRAP_OFF` and `PETSC_FP_TRAP_ON` are handled. All others are treated as `PETSC_FP_TRAP_ON`. 1371 1372 Level: intermediate 1373 1374 .seealso: `PetscSetFPTrap()`, `PetscFPTrapPush()` 1375 E*/ 1376 typedef enum { 1377 PETSC_FP_TRAP_OFF = 0, 1378 PETSC_FP_TRAP_INDIV = 1, 1379 PETSC_FP_TRAP_FLTOPERR = 2, 1380 PETSC_FP_TRAP_FLTOVF = 4, 1381 PETSC_FP_TRAP_FLTUND = 8, 1382 PETSC_FP_TRAP_FLTDIV = 16, 1383 PETSC_FP_TRAP_FLTINEX = 32, 1384 PETSC_FP_TRAP_ON = 63 1385 } PetscFPTrap; 1386 1387 PETSC_EXTERN PetscErrorCode PetscSetFPTrap(PetscFPTrap); 1388 PETSC_EXTERN PetscErrorCode PetscFPTrapPush(PetscFPTrap); 1389 PETSC_EXTERN PetscErrorCode PetscFPTrapPop(void); 1390 PETSC_EXTERN PetscErrorCode PetscDetermineInitialFPTrap(void); 1391 1392 /* 1393 Allows the code to build a stack frame as it runs 1394 */ 1395 1396 #define PETSCSTACKSIZE 64 1397 typedef struct { 1398 const char *function[PETSCSTACKSIZE]; 1399 const char *file[PETSCSTACKSIZE]; 1400 int line[PETSCSTACKSIZE]; 1401 int petscroutine[PETSCSTACKSIZE]; /* 0 external called from PETSc, 1 PETSc functions, 2 PETSc user functions */ 1402 int currentsize; 1403 int hotdepth; 1404 PetscBool check; /* option to check for correct Push/Pop semantics, true for default petscstack but not other stacks */ 1405 } PetscStack; 1406 #if defined(PETSC_USE_DEBUG) && !defined(PETSC_HAVE_THREADSAFETY) 1407 PETSC_EXTERN PetscStack petscstack; 1408 #endif 1409 1410 #if defined(PETSC_SERIALIZE_FUNCTIONS) 1411 #include <petsc/private/petscfptimpl.h> 1412 /* 1413 Registers the current function into the global function pointer to function name table 1414 1415 Have to fix this to handle errors but cannot return error since used in PETSC_VIEWER_DRAW_() etc 1416 */ 1417 #define PetscRegister__FUNCT__() \ 1418 do { \ 1419 static PetscBool __chked = PETSC_FALSE; \ 1420 if (!__chked) { \ 1421 void *ptr; \ 1422 PetscCallAbort(PETSC_COMM_SELF, PetscDLSym(NULL, PETSC_FUNCTION_NAME, &ptr)); \ 1423 __chked = PETSC_TRUE; \ 1424 } \ 1425 } while (0) 1426 #else 1427 #define PetscRegister__FUNCT__() 1428 #endif 1429 1430 #if defined(PETSC_CLANG_STATIC_ANALYZER) || defined(__clang_analyzer__) 1431 #define PetscStackPushNoCheck(funct, petsc_routine, hot) 1432 #define PetscStackUpdateLine 1433 #define PetscStackPushExternal(funct) 1434 #define PetscStackPopNoCheck(funct) 1435 #define PetscStackClearTop 1436 #define PetscFunctionBegin 1437 #define PetscFunctionBeginUser 1438 #define PetscFunctionBeginHot 1439 #define PetscFunctionReturn(...) return __VA_ARGS__ 1440 #define PetscFunctionReturnVoid() return 1441 #define PetscStackPop 1442 #define PetscStackPush(f) 1443 #define PetscStackPush_Private(stack__, file__, func__, line__, petsc_routine__, hot__) \ 1444 (void)file__; \ 1445 (void)func__; \ 1446 (void)line__ 1447 #define PetscStackPop_Private(stack__, func__) (void)func__ 1448 #elif defined(PETSC_USE_DEBUG) && !defined(PETSC_HAVE_THREADSAFETY) 1449 1450 #define PetscStackPush_Private(stack__, file__, func__, line__, petsc_routine__, hot__) \ 1451 do { \ 1452 if (stack__.currentsize < PETSCSTACKSIZE) { \ 1453 stack__.function[stack__.currentsize] = func__; \ 1454 if (petsc_routine__) { \ 1455 stack__.file[stack__.currentsize] = file__; \ 1456 stack__.line[stack__.currentsize] = line__; \ 1457 } else { \ 1458 stack__.file[stack__.currentsize] = PETSC_NULLPTR; \ 1459 stack__.line[stack__.currentsize] = 0; \ 1460 } \ 1461 stack__.petscroutine[stack__.currentsize] = petsc_routine__; \ 1462 } \ 1463 ++stack__.currentsize; \ 1464 stack__.hotdepth += (hot__ || stack__.hotdepth); \ 1465 } while (0) 1466 1467 /* uses PetscCheckAbort() because may be used in a function that does not return an error code */ 1468 #define PetscStackPop_Private(stack__, func__) \ 1469 do { \ 1470 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__); \ 1471 if (--stack__.currentsize < PETSCSTACKSIZE) { \ 1472 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", \ 1473 stack__.function[stack__.currentsize], stack__.file[stack__.currentsize], stack__.line[stack__.currentsize], func__, __FILE__, __LINE__); \ 1474 stack__.function[stack__.currentsize] = PETSC_NULLPTR; \ 1475 stack__.file[stack__.currentsize] = PETSC_NULLPTR; \ 1476 stack__.line[stack__.currentsize] = 0; \ 1477 stack__.petscroutine[stack__.currentsize] = 0; \ 1478 } \ 1479 stack__.hotdepth = PetscMax(stack__.hotdepth - 1, 0); \ 1480 } while (0) 1481 1482 /*MC 1483 PetscStackPushNoCheck - Pushes a new function name and line number onto the PETSc default stack that tracks where the running program is 1484 currently in the source code. 1485 1486 Synopsis: 1487 #include <petscsys.h> 1488 void PetscStackPushNoCheck(char *funct,int petsc_routine,PetscBool hot); 1489 1490 Not Collective 1491 1492 Input Parameters: 1493 + funct - the function name 1494 . petsc_routine - 2 user function, 1 PETSc function, 0 some other function 1495 - hot - indicates that the function may be called often so expensive error checking should be turned off inside the function 1496 1497 Level: developer 1498 1499 Notes: 1500 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 1501 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 1502 help debug the problem. 1503 1504 This version does not check the memory corruption (an expensive operation), use `PetscStackPush()` to check the memory. 1505 1506 Use `PetscStackPushExternal()` for a function call that is about to be made to a non-PETSc or user function (such as BLAS etc). 1507 1508 The default stack is a global variable called `petscstack`. 1509 1510 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`, 1511 `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPush()`, `PetscStackPop`, 1512 `PetscStackPushExternal()` 1513 M*/ 1514 #define PetscStackPushNoCheck(funct, petsc_routine, hot) \ 1515 do { \ 1516 PetscStackSAWsTakeAccess(); \ 1517 PetscStackPush_Private(petscstack, __FILE__, funct, __LINE__, petsc_routine, hot); \ 1518 PetscStackSAWsGrantAccess(); \ 1519 } while (0) 1520 1521 /*MC 1522 PetscStackUpdateLine - in a function that has a `PetscFunctionBegin` or `PetscFunctionBeginUser` updates the stack line number to the 1523 current line number. 1524 1525 Synopsis: 1526 #include <petscsys.h> 1527 void PetscStackUpdateLine 1528 1529 Not Collective 1530 1531 Level: developer 1532 1533 Notes: 1534 Using `PetscCall()` and friends automatically handles this process 1535 1536 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 1537 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1538 help debug the problem. 1539 1540 The default stack is a global variable called `petscstack`. 1541 1542 This is used by `PetscCall()` and is otherwise not like to be needed 1543 1544 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop`, `PetscCall()` 1545 M*/ 1546 #define PetscStackUpdateLine \ 1547 do { \ 1548 if (petscstack.currentsize > 0 && petscstack.currentsize < PETSCSTACKSIZE && petscstack.function[petscstack.currentsize - 1] == PETSC_FUNCTION_NAME) { petscstack.line[petscstack.currentsize - 1] = __LINE__; } \ 1549 } while (0) 1550 1551 /*MC 1552 PetscStackPushExternal - Pushes a new function name onto the PETSc default stack that tracks where the running program is 1553 currently in the source code. Does not include the filename or line number since this is called by the calling routine 1554 for non-PETSc or user functions. 1555 1556 Synopsis: 1557 #include <petscsys.h> 1558 void PetscStackPushExternal(char *funct); 1559 1560 Not Collective 1561 1562 Input Parameter: 1563 . funct - the function name 1564 1565 Level: developer 1566 1567 Notes: 1568 Using `PetscCallExternal()` and friends automatically handles this process 1569 1570 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 1571 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1572 help debug the problem. 1573 1574 The default stack is a global variable called `petscstack`. 1575 1576 This is to be used when calling an external package function such as a BLAS function. 1577 1578 This also updates the stack line number for the current stack function. 1579 1580 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`, 1581 `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`, `PetscStackPop` 1582 M*/ 1583 #define PetscStackPushExternal(funct) \ 1584 do { \ 1585 PetscStackUpdateLine; \ 1586 PetscStackPushNoCheck(funct, 0, PETSC_TRUE); \ 1587 } while (0) 1588 1589 /*MC 1590 PetscStackPopNoCheck - Pops a function name from the PETSc default stack that tracks where the running program is 1591 currently in the source code. 1592 1593 Synopsis: 1594 #include <petscsys.h> 1595 void PetscStackPopNoCheck(char *funct); 1596 1597 Not Collective 1598 1599 Input Parameter: 1600 . funct - the function name 1601 1602 Level: developer 1603 1604 Notes: 1605 Using `PetscCall()`, `PetscCallExternal()`, `PetscCallBack()` and friends negates the need to call this 1606 1607 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 1608 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1609 help debug the problem. 1610 1611 The default stack is a global variable called `petscstack`. 1612 1613 Developer Note: 1614 `PetscStackPopNoCheck()` takes a function argument while `PetscStackPop` does not, this difference is likely just historical. 1615 1616 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop` 1617 M*/ 1618 #define PetscStackPopNoCheck(funct) \ 1619 do { \ 1620 PetscStackSAWsTakeAccess(); \ 1621 PetscStackPop_Private(petscstack, funct); \ 1622 PetscStackSAWsGrantAccess(); \ 1623 } while (0) 1624 1625 #define PetscStackClearTop \ 1626 do { \ 1627 PetscStackSAWsTakeAccess(); \ 1628 if (petscstack.currentsize > 0 && --petscstack.currentsize < PETSCSTACKSIZE) { \ 1629 petscstack.function[petscstack.currentsize] = PETSC_NULLPTR; \ 1630 petscstack.file[petscstack.currentsize] = PETSC_NULLPTR; \ 1631 petscstack.line[petscstack.currentsize] = 0; \ 1632 petscstack.petscroutine[petscstack.currentsize] = 0; \ 1633 } \ 1634 petscstack.hotdepth = PetscMax(petscstack.hotdepth - 1, 0); \ 1635 PetscStackSAWsGrantAccess(); \ 1636 } while (0) 1637 1638 /*MC 1639 PetscFunctionBegin - First executable line of each PETSc function, used for error handling. Final 1640 line of PETSc functions should be `PetscFunctionReturn`(0); 1641 1642 Synopsis: 1643 #include <petscsys.h> 1644 void PetscFunctionBegin; 1645 1646 Not Collective; No Fortran Support 1647 1648 Usage: 1649 .vb 1650 int something; 1651 1652 PetscFunctionBegin; 1653 .ve 1654 1655 Level: developer 1656 1657 Note: 1658 Use `PetscFunctionBeginUser` for application codes. 1659 1660 .seealso: `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()` 1661 1662 M*/ 1663 #define PetscFunctionBegin \ 1664 do { \ 1665 PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 1, PETSC_FALSE); \ 1666 PetscRegister__FUNCT__(); \ 1667 } while (0) 1668 1669 /*MC 1670 PetscFunctionBeginHot - Substitute for `PetscFunctionBegin` to be used in functions that are called in 1671 performance-critical circumstances. Use of this function allows for lighter profiling by default. 1672 1673 Synopsis: 1674 #include <petscsys.h> 1675 void PetscFunctionBeginHot; 1676 1677 Not Collective; No Fortran Support 1678 1679 Usage: 1680 .vb 1681 int something; 1682 1683 PetscFunctionBeginHot; 1684 .ve 1685 1686 Level: developer 1687 1688 .seealso: `PetscFunctionBegin`, `PetscFunctionReturn()`, `PetscStackPushNoCheck()` 1689 1690 M*/ 1691 #define PetscFunctionBeginHot \ 1692 do { \ 1693 PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 1, PETSC_TRUE); \ 1694 PetscRegister__FUNCT__(); \ 1695 } while (0) 1696 1697 /*MC 1698 PetscFunctionBeginUser - First executable line of user provided routines 1699 1700 Synopsis: 1701 #include <petscsys.h> 1702 void PetscFunctionBeginUser; 1703 1704 Not Collective; No Fortran Support 1705 1706 Usage: 1707 .vb 1708 int something; 1709 1710 PetscFunctionBeginUser; 1711 .ve 1712 1713 Level: intermediate 1714 1715 Notes: 1716 Functions that incorporate this must call `PetscFunctionReturn()` instead of return except for main(). 1717 1718 May be used before `PetscInitialize()` 1719 1720 This is identical to `PetscFunctionBegin` except it labels the routine as a user 1721 routine instead of as a PETSc library routine. 1722 1723 .seealso: `PetscFunctionReturn()`, `PetscFunctionBegin`, `PetscFunctionBeginHot`, `PetscStackPushNoCheck()` 1724 M*/ 1725 #define PetscFunctionBeginUser \ 1726 do { \ 1727 PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 2, PETSC_FALSE); \ 1728 PetscRegister__FUNCT__(); \ 1729 } while (0) 1730 1731 /*MC 1732 PetscStackPush - Pushes a new function name and line number onto the PETSc default stack that tracks where the running program is 1733 currently in the source code and verifies the memory is not corrupted. 1734 1735 Synopsis: 1736 #include <petscsys.h> 1737 void PetscStackPush(char *funct) 1738 1739 Not Collective 1740 1741 Input Parameter: 1742 . funct - the function name 1743 1744 Level: developer 1745 1746 Notes: 1747 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 1748 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1749 help debug the problem. 1750 1751 The default stack is a global variable called `petscstack`. 1752 1753 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`, 1754 `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`, `PetscStackPop` 1755 M*/ 1756 #define PetscStackPush(n) \ 1757 do { \ 1758 PetscStackPushNoCheck(n, 0, PETSC_FALSE); \ 1759 CHKMEMQ; \ 1760 } while (0) 1761 1762 /*MC 1763 PetscStackPop - Pops a function name from the PETSc default stack that tracks where the running program is 1764 currently in the source code and verifies the memory is not corrupted. 1765 1766 Synopsis: 1767 #include <petscsys.h> 1768 void PetscStackPop 1769 1770 Not Collective 1771 1772 Level: developer 1773 1774 Notes: 1775 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 1776 occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to 1777 help debug the problem. 1778 1779 The default stack is a global variable called `petscstack`. 1780 1781 .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPopNoCheck()`, `PetscStackPush()` 1782 M*/ 1783 #define PetscStackPop \ 1784 do { \ 1785 CHKMEMQ; \ 1786 PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \ 1787 } while (0) 1788 1789 /*MC 1790 PetscFunctionReturn - Last executable line of each PETSc function used for error 1791 handling. Replaces `return()`. 1792 1793 Synopsis: 1794 #include <petscsys.h> 1795 void PetscFunctionReturn(...) 1796 1797 Not Collective; No Fortran Support 1798 1799 Level: beginner 1800 1801 Notes: 1802 This routine is a macro, so while it does not "return" anything itself, it does return from 1803 the function in the literal sense. 1804 1805 Usually the return value is the integer literal `0` (for example in any function returning 1806 `PetscErrorCode`), however it is possible to return any arbitrary type. The arguments of 1807 this macro are placed before the `return` statement as-is. 1808 1809 Any routine which returns via `PetscFunctionReturn()` must begin with a corresponding 1810 `PetscFunctionBegin`. 1811 1812 For routines which return `void` use `PetscFunctionReturnVoid()` instead. 1813 1814 Example Usage: 1815 .vb 1816 PetscErrorCode foo(int *x) 1817 { 1818 PetscFunctionBegin; // don't forget the begin! 1819 *x = 10; 1820 PetscFunctionReturn(PETSC_SUCCESS); 1821 } 1822 .ve 1823 1824 May return any arbitrary type\: 1825 .vb 1826 struct Foo 1827 { 1828 int x; 1829 }; 1830 1831 struct Foo make_foo(int value) 1832 { 1833 struct Foo f; 1834 1835 PetscFunctionBegin; 1836 f.x = value; 1837 PetscFunctionReturn(f); 1838 } 1839 .ve 1840 1841 .seealso: `PetscFunctionBegin`, `PetscFunctionBeginUser`, `PetscFunctionReturnVoid()`, 1842 `PetscStackPopNoCheck()` 1843 M*/ 1844 #define PetscFunctionReturn(...) \ 1845 do { \ 1846 PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \ 1847 return __VA_ARGS__; \ 1848 } while (0) 1849 1850 /*MC 1851 PetscFunctionReturnVoid - Like `PetscFunctionReturn()` but returns `void` 1852 1853 Synopsis: 1854 #include <petscsys.h> 1855 void PetscFunctionReturnVoid() 1856 1857 Not Collective 1858 1859 Level: beginner 1860 1861 Note: 1862 Behaves identically to `PetscFunctionReturn()` except that it returns `void`. That is, this 1863 macro culminates with `return`. 1864 1865 Example Usage: 1866 .vb 1867 void foo() 1868 { 1869 PetscFunctionBegin; // must start with PetscFunctionBegin! 1870 bar(); 1871 baz(); 1872 PetscFunctionReturnVoid(); 1873 } 1874 .ve 1875 1876 .seealso: `PetscFunctionReturn()`, `PetscFunctionBegin`, PetscFunctionBeginUser` 1877 M*/ 1878 #define PetscFunctionReturnVoid() \ 1879 do { \ 1880 PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \ 1881 return; \ 1882 } while (0) 1883 #else /* PETSC_USE_DEBUG */ 1884 #define PetscStackPushNoCheck(funct, petsc_routine, hot) 1885 #define PetscStackUpdateLine 1886 #define PetscStackPushExternal(funct) 1887 #define PetscStackPopNoCheck(...) 1888 #define PetscStackClearTop 1889 #define PetscFunctionBegin 1890 #define PetscFunctionBeginUser 1891 #define PetscFunctionBeginHot 1892 #define PetscFunctionReturn(...) return __VA_ARGS__ 1893 #define PetscFunctionReturnVoid() return 1894 #define PetscStackPop CHKMEMQ 1895 #define PetscStackPush(f) CHKMEMQ 1896 #endif /* PETSC_USE_DEBUG */ 1897 1898 #if defined(PETSC_CLANG_STATIC_ANALYZER) 1899 #define PetscStackCallExternalVoid(...) 1900 template <typename F, typename... Args> 1901 void PetscCallExternal(F, Args...); 1902 template <typename F, typename... Args> 1903 void PetscCallExternalAbort(F, Args...); 1904 #else 1905 /*MC 1906 PetscStackCallExternalVoid - Calls an external library routine or user function after pushing the name of the routine on the stack. 1907 1908 Input Parameters: 1909 + name - string that gives the name of the function being called 1910 - routine - actual call to the routine, for example, functionname(a,b) 1911 1912 Level: developer 1913 1914 Notes: 1915 Often one should use `PetscCallExternal()` instead. This routine is intended for external library routines that DO NOT return error codes 1916 1917 In debug mode this also checks the memory for corruption at the end of the function call. 1918 1919 Certain external packages, such as BLAS/LAPACK may have their own macros, `PetscCallBLAS()` for managing the call, error checking, etc. 1920 1921 Developer Note: 1922 This is so that when a user or external library routine results in a crash or corrupts memory, they get blamed instead of PETSc. 1923 1924 .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscCallExternal()`, `PetscCallBLAS()` 1925 @*/ 1926 #define PetscStackCallExternalVoid(name, ...) \ 1927 do { \ 1928 PetscStackPushExternal(name); \ 1929 __VA_ARGS__; \ 1930 PetscStackPop; \ 1931 } while (0) 1932 1933 /*MC 1934 PetscCallExternal - Calls an external library routine that returns an error code after pushing the name of the routine on the stack. 1935 1936 Input Parameters: 1937 + func - name of the routine 1938 - args - arguments to the routine 1939 1940 Level: developer 1941 1942 Notes: 1943 This is intended for external package routines that return error codes. Use `PetscStackCallExternalVoid()` for those that do not. 1944 1945 In debug mode this also checks the memory for corruption at the end of the function call. 1946 1947 Assumes the error return code of the function is an integer and that a value of 0 indicates success 1948 1949 Developer Note: 1950 This is so that when an external package routine results in a crash or corrupts memory, they get blamed instead of PETSc. 1951 1952 .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscStackCallExternalVoid()`, `PetscCallExternalAbort()` 1953 M*/ 1954 #define PetscCallExternal(func, ...) \ 1955 do { \ 1956 PetscStackPush(PetscStringize(func)); \ 1957 int ierr_petsc_call_external_ = (int)func(__VA_ARGS__); \ 1958 PetscStackPop; \ 1959 PetscCheck(ierr_petsc_call_external_ == 0, PETSC_COMM_SELF, PETSC_ERR_LIB, "Error in %s(): error code %d", PetscStringize(func), ierr_petsc_call_external_); \ 1960 } while (0) 1961 1962 /*MC 1963 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 1964 1965 Input Parameters: 1966 + func - name of the routine 1967 - args - arguments to the routine 1968 1969 Level: developer 1970 1971 Notes: 1972 This is intended for external package routines that return error codes. Use `PetscStackCallExternalVoid()` for those that do not. 1973 1974 In debug mode this also checks the memory for corruption at the end of the function call. 1975 1976 Assumes the error return code of the function is an integer and that a value of 0 indicates success 1977 1978 Developer Note: 1979 This is so that when an external package routine results in a crash or corrupts memory, they get blamed instead of PETSc. 1980 1981 .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscStackCallExternalVoid()`, `PetscCallExternal()` 1982 M*/ 1983 #define PetscCallExternalAbort(func, ...) \ 1984 do { \ 1985 PetscStackUpdateLine; \ 1986 int ierr_petsc_call_external_ = func(__VA_ARGS__); \ 1987 if (PetscUnlikely(ierr_petsc_call_external_ != 0)) { \ 1988 (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_); \ 1989 PETSCABORTWITHIERR_Private(PETSC_COMM_SELF, PETSC_ERR_LIB); \ 1990 } \ 1991 } while (0) 1992 #endif /* PETSC_CLANG_STATIC_ANALYZER */ 1993