xref: /petsc/include/petscerror.h (revision 29f88fea07ab688b84f6afe9ae3863e54fc8802a)
154a8ef01SBarry Smith /*
2f621e05eSBarry Smith     Contains all error handling interfaces for PETSc.
354a8ef01SBarry Smith */
46524c165SJacob Faibussowitsch #ifndef PETSCERROR_H
526bd1501SBarry Smith #define PETSCERROR_H
66c7e564aSBarry Smith 
7e1bf4ed2SJacob Faibussowitsch #include <petscmacros.h>
8e1bf4ed2SJacob Faibussowitsch #include <petscsystypes.h>
9e1bf4ed2SJacob Faibussowitsch 
10af75f258SJacob Faibussowitsch #if defined(__cplusplus)
11af75f258SJacob Faibussowitsch   #include <exception> // std::exception
12af75f258SJacob Faibussowitsch #endif
13af75f258SJacob Faibussowitsch 
14ac09b921SBarry Smith /* SUBMANSEC = Sys */
15ac09b921SBarry Smith 
1654a8ef01SBarry Smith /*
17329ffe3dSLois Curfman McInnes      These are the generic error codes. These error codes are used
18e2d1d2b7SBarry Smith      many different places in the PETSc source code. The string versions are
190e5e90baSSatish Balay      at src/sys/error/err.c any changes here must also be made there
20e951c290SBarry Smith      These are also define in src/sys/f90-mod/petscerror.h any CHANGES here
210f9cf654SBarry Smith      must be also made there.
2245d48df9SBarry Smith 
2354a8ef01SBarry Smith */
242a6744ebSBarry Smith #define PETSC_ERR_MIN_VALUE 54 /* should always be one less then the smallest value */
252a6744ebSBarry Smith 
2645d48df9SBarry Smith #define PETSC_ERR_MEM            55 /* unable to allocate requested memory */
2747794344SBarry Smith #define PETSC_ERR_SUP            56 /* no support for requested operation */
28e2d1d2b7SBarry Smith #define PETSC_ERR_SUP_SYS        57 /* no support for requested operation on this computer system */
29e2d1d2b7SBarry Smith #define PETSC_ERR_ORDER          58 /* operation done in wrong order */
3045d48df9SBarry Smith #define PETSC_ERR_SIG            59 /* signal received */
31f1caa5a4SBarry Smith #define PETSC_ERR_FP             72 /* floating point exception */
32a8c6a408SBarry Smith #define PETSC_ERR_COR            74 /* corrupted PETSc object */
33a8c6a408SBarry Smith #define PETSC_ERR_LIB            76 /* error in library called by PETSc */
34329ffe3dSLois Curfman McInnes #define PETSC_ERR_PLIB           77 /* PETSc library generated inconsistent data */
35329ffe3dSLois Curfman McInnes #define PETSC_ERR_MEMC           78 /* memory corruption */
36b3cc6726SBarry Smith #define PETSC_ERR_CONV_FAILED    82 /* iterative method (KSP or SNES) failed */
371302d50aSBarry Smith #define PETSC_ERR_USER           83 /* user has not provided needed function */
384e2ffeddSBarry Smith #define PETSC_ERR_SYS            88 /* error in system call */
39a8b45ee7SBarry Smith #define PETSC_ERR_POINTER        70 /* pointer does not point to valid address */
403d96e996SBarry Smith #define PETSC_ERR_MPI_LIB_INCOMP 87 /* MPI library at runtime is not compatible with MPI user compiled with */
4145d48df9SBarry Smith 
4245d48df9SBarry Smith #define PETSC_ERR_ARG_SIZ          60 /* nonconforming object sizes used in operation */
4345d48df9SBarry Smith #define PETSC_ERR_ARG_IDN          61 /* two arguments not allowed to be the same */
44a8c6a408SBarry Smith #define PETSC_ERR_ARG_WRONG        62 /* wrong argument (but object probably ok) */
4545d48df9SBarry Smith #define PETSC_ERR_ARG_CORRUPT      64 /* null or corrupted PETSc object as argument */
4645d48df9SBarry Smith #define PETSC_ERR_ARG_OUTOFRANGE   63 /* input argument, out of range */
474f227f7cSBarry Smith #define PETSC_ERR_ARG_BADPTR       68 /* invalid pointer argument */
484f227f7cSBarry Smith #define PETSC_ERR_ARG_NOTSAMETYPE  69 /* two args must be same object type */
496831982aSBarry Smith #define PETSC_ERR_ARG_NOTSAMECOMM  80 /* two args must be same communicators */
50d252947aSBarry Smith #define PETSC_ERR_ARG_WRONGSTATE   73 /* object in argument is in wrong state, e.g. unassembled mat */
518cda6cd7SBarry Smith #define PETSC_ERR_ARG_TYPENOTSET   89 /* the type of the object has not yet been set */
52a8c6a408SBarry Smith #define PETSC_ERR_ARG_INCOMP       75 /* two arguments are incompatible */
534482741eSBarry Smith #define PETSC_ERR_ARG_NULL         85 /* argument is null that should not be */
54958c9bccSBarry Smith #define PETSC_ERR_ARG_UNKNOWN_TYPE 86 /* type name doesn't match any registered type */
554f227f7cSBarry Smith 
564f227f7cSBarry Smith #define PETSC_ERR_FILE_OPEN       65 /* unable to open file */
574f227f7cSBarry Smith #define PETSC_ERR_FILE_READ       66 /* unable to read from file */
584f227f7cSBarry Smith #define PETSC_ERR_FILE_WRITE      67 /* unable to write to file */
59a8c6a408SBarry Smith #define PETSC_ERR_FILE_UNEXPECTED 79 /* unexpected data in file */
6045d48df9SBarry Smith 
61329ffe3dSLois Curfman McInnes #define PETSC_ERR_MAT_LU_ZRPVT 71 /* detected a zero pivot during LU factorization */
629e3b2f23SBarry Smith #define PETSC_ERR_MAT_CH_ZRPVT 81 /* detected a zero pivot during Cholesky factorization */
6354a8ef01SBarry Smith 
6468e69593SBarry Smith #define PETSC_ERR_INT_OVERFLOW 84
653855c12bSBarry Smith 
66bf3909cdSBarry Smith #define PETSC_ERR_FLOP_COUNT     90
67e113a28aSBarry Smith #define PETSC_ERR_NOT_CONVERGED  91  /* solver did not converge */
6892e8f287SBarry Smith #define PETSC_ERR_MISSING_FACTOR 92  /* MatGetFactor() failed */
69691b26d3SBarry Smith #define PETSC_ERR_OPT_OVERWRITE  93  /* attempted to over write options which should not be changed */
70691b26d3SBarry Smith #define PETSC_ERR_WRONG_MPI_SIZE 94  /* example/application run with number of MPI ranks it does not support */
71691b26d3SBarry Smith #define PETSC_ERR_USER_INPUT     95  /* missing or incorrect user input */
72589f383fSBarry Smith #define PETSC_ERR_GPU_RESOURCE   96  /* unable to load a GPU resource, for example cuBLAS */
73589f383fSBarry Smith #define PETSC_ERR_GPU            97  /* An error from a GPU call, this may be due to lack of resources on the GPU or a true error in the call */
74ffc4695bSBarry Smith #define PETSC_ERR_MPI            98  /* general MPI error */
75e809461dSJacob Faibussowitsch #define PETSC_ERR_RETURN         99  /* PetscError() incorrectly returned an error code of 0 */
76e809461dSJacob Faibussowitsch #define PETSC_ERR_MAX_VALUE      100 /* this is always the one more than the largest error code */
77b9eb5ee8SHong Zhang 
7898921bdaSJacob Faibussowitsch #define SETERRQ1(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
7998921bdaSJacob Faibussowitsch #define SETERRQ2(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8098921bdaSJacob Faibussowitsch #define SETERRQ3(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8198921bdaSJacob Faibussowitsch #define SETERRQ4(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8298921bdaSJacob Faibussowitsch #define SETERRQ5(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8398921bdaSJacob Faibussowitsch #define SETERRQ6(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8498921bdaSJacob Faibussowitsch #define SETERRQ7(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8598921bdaSJacob Faibussowitsch #define SETERRQ8(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8698921bdaSJacob Faibussowitsch #define SETERRQ9(...) PETSC_DEPRECATED_MACRO("GCC warning \"Use SETERRQ() (since version 3.17)\"") SETERRQ(__VA_ARGS__)
8798921bdaSJacob Faibussowitsch 
8830de9b25SBarry Smith /*MC
891957e957SBarry Smith    SETERRQ - Macro to be called when an error has been detected,
9030de9b25SBarry Smith 
9130de9b25SBarry Smith    Synopsis:
92aaa7dc30SBarry Smith    #include <petscsys.h>
9398921bdaSJacob Faibussowitsch    PetscErrorCode SETERRQ(MPI_Comm comm,PetscErrorCode ierr,char *message,...)
9430de9b25SBarry Smith 
95d083f849SBarry Smith    Collective
9630de9b25SBarry Smith 
9730de9b25SBarry Smith    Input Parameters:
9887497f52SBarry Smith +  comm - A communicator, use `PETSC_COMM_SELF` unless you know all ranks of another communicator will detect the error
993af045c5SBarry Smith .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
10030de9b25SBarry Smith -  message - error message
10130de9b25SBarry Smith 
10230de9b25SBarry Smith   Level: beginner
10330de9b25SBarry Smith 
10430de9b25SBarry Smith    Notes:
10587497f52SBarry Smith     This is rarely needed, one should use `PetscCheck()` and `PetscCall()` and friends to automatically handle error conditions.
10630de9b25SBarry Smith     Once the error handler is called the calling function is then returned from with the given error code.
10730de9b25SBarry Smith 
10887497f52SBarry Smith     Experienced users can set the error handler with `PetscPushErrorHandler()`.
10930de9b25SBarry Smith 
1103b1008b8SBarry Smith    Fortran Notes:
1113b1008b8SBarry Smith       SETERRQ() may be called from Fortran subroutines but SETERRA() must be called from the
1123b1008b8SBarry Smith       Fortran main program.
1133b1008b8SBarry Smith 
114db781477SPatrick Sanan .seealso: `PetscCheck()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`,
115db781477SPatrick Sanan           `PetscError()`, `PetscCall()`, `CHKMEMQ`, `CHKERRA()`, `PetscCallMPI()`
11630de9b25SBarry Smith M*/
117e809461dSJacob Faibussowitsch #define SETERRQ(comm, ierr, ...) \
118e809461dSJacob Faibussowitsch   do { \
119e809461dSJacob Faibussowitsch     PetscErrorCode ierr_seterrq_petsc_ = PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__); \
120e809461dSJacob Faibussowitsch     return ierr_seterrq_petsc_ ? ierr_seterrq_petsc_ : PETSC_ERR_RETURN; \
121e809461dSJacob Faibussowitsch   } while (0)
122986eef2eSBarry Smith 
123ffc4695bSBarry Smith /*
124ffc4695bSBarry Smith     Returned from PETSc functions that are called from MPI, such as related to attributes
125ffc4695bSBarry Smith       Do not confuse PETSC_MPI_ERROR_CODE and PETSC_ERR_MPI, the first is registered with MPI and returned to MPI as
126888a1fb3SBarry Smith       an error code, the latter is a regular PETSc error code passed within PETSc code indicating an error was detected in an MPI call.
127ffc4695bSBarry Smith */
128ffc4695bSBarry Smith PETSC_EXTERN PetscMPIInt PETSC_MPI_ERROR_CLASS;
129ffc4695bSBarry Smith PETSC_EXTERN PetscMPIInt PETSC_MPI_ERROR_CODE;
130ffc4695bSBarry Smith 
131986eef2eSBarry Smith /*MC
132986eef2eSBarry Smith    SETERRMPI - Macro to be called when an error has been detected within an MPI callback function
133986eef2eSBarry Smith 
134986eef2eSBarry Smith    Synopsis:
135986eef2eSBarry Smith    #include <petscsys.h>
13698921bdaSJacob Faibussowitsch    PetscErrorCode SETERRMPI(MPI_Comm comm,PetscErrorCode ierr,char *message,...)
137986eef2eSBarry Smith 
138d083f849SBarry Smith    Collective
139986eef2eSBarry Smith 
140986eef2eSBarry Smith    Input Parameters:
14187497f52SBarry Smith +  comm - A communicator, use `PETSC_COMM_SELF` unless you know all ranks of another communicator will detect the error
142986eef2eSBarry Smith .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
143986eef2eSBarry Smith -  message - error message
144986eef2eSBarry Smith 
145986eef2eSBarry Smith   Level: developer
146986eef2eSBarry Smith 
147986eef2eSBarry Smith    Notes:
14887497f52SBarry Smith     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`
14987497f52SBarry Smith     which is registered with `MPI_Add_error_code()` when PETSc is initialized.
150986eef2eSBarry Smith 
151db781477SPatrick Sanan .seealso: `SETERRQ()`, `PetscCall()`, `PetscCallMPI()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`
152986eef2eSBarry Smith M*/
15398921bdaSJacob Faibussowitsch #define SETERRMPI(comm, ierr, ...) return (PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__), PETSC_MPI_ERROR_CODE)
154ee8199e6SMatthew G. Knepley 
155ee8199e6SMatthew G. Knepley /*MC
156f388eb8bSPatrick Sanan    SETERRA - Fortran-only macro that can be called when an error has been detected from the main program
157f388eb8bSPatrick Sanan 
158f388eb8bSPatrick Sanan    Synopsis:
159f388eb8bSPatrick Sanan    #include <petscsys.h>
160f388eb8bSPatrick Sanan    PetscErrorCode SETERRA(MPI_Comm comm,PetscErrorCode ierr,char *message)
161f388eb8bSPatrick Sanan 
162f388eb8bSPatrick Sanan    Collective
163f388eb8bSPatrick Sanan 
164f388eb8bSPatrick Sanan    Input Parameters:
165f388eb8bSPatrick Sanan +  comm - A communicator, so that the error can be collective
166f388eb8bSPatrick Sanan .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
167f388eb8bSPatrick Sanan -  message - error message in the printf format
168f388eb8bSPatrick Sanan 
169f388eb8bSPatrick Sanan   Level: beginner
170f388eb8bSPatrick Sanan 
171f388eb8bSPatrick Sanan    Notes:
17287497f52SBarry Smith     This should only be used with Fortran. With C/C++, use `SETERRQ()`.
173f388eb8bSPatrick Sanan 
174f388eb8bSPatrick Sanan    Fortran Notes:
17587497f52SBarry Smith       `SETERRQ()` may be called from Fortran subroutines but `SETERRA()` must be called from the
176f388eb8bSPatrick Sanan       Fortran main program.
177f388eb8bSPatrick Sanan 
178db781477SPatrick Sanan .seealso: `SETERRQ()`, `SETERRABORT()`, `PetscCall()`, `CHKERRA()`, `PetscCallAbort()`
179f388eb8bSPatrick Sanan M*/
180f388eb8bSPatrick Sanan 
181f388eb8bSPatrick Sanan /*MC
182fa190f98SMatthew G. Knepley    SETERRABORT - Macro that can be called when an error has been detected,
183fa190f98SMatthew G. Knepley 
184fa190f98SMatthew G. Knepley    Synopsis:
185fa190f98SMatthew G. Knepley    #include <petscsys.h>
18698921bdaSJacob Faibussowitsch    PetscErrorCode SETERRABORT(MPI_Comm comm,PetscErrorCode ierr,char *message,...)
187fa190f98SMatthew G. Knepley 
188d083f849SBarry Smith    Collective
189fa190f98SMatthew G. Knepley 
190fa190f98SMatthew G. Knepley    Input Parameters:
191fa190f98SMatthew G. Knepley +  comm - A communicator, so that the error can be collective
1923af045c5SBarry Smith .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
193fa190f98SMatthew G. Knepley -  message - error message in the printf format
194fa190f98SMatthew G. Knepley 
195fa190f98SMatthew G. Knepley   Level: beginner
196fa190f98SMatthew G. Knepley 
197fa190f98SMatthew G. Knepley    Notes:
19887497f52SBarry Smith     This function just calls `MPI_Abort()`.
19987497f52SBarry Smith 
20087497f52SBarry Smith     This should only be called in routines that cannot return an error code, such as in C++ constructors.
201fa190f98SMatthew G. Knepley 
202db781477SPatrick Sanan .seealso: `SETERRQ()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `PetscCall()`, `CHKMEMQ`
203fa190f98SMatthew G. Knepley M*/
2049371c9d4SSatish Balay #define SETERRABORT(comm, ierr, ...) \
2059371c9d4SSatish Balay   do { \
20698921bdaSJacob Faibussowitsch     PetscError(comm, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr, PETSC_ERROR_INITIAL, __VA_ARGS__); \
20798921bdaSJacob Faibussowitsch     MPI_Abort(comm, ierr); \
20898921bdaSJacob Faibussowitsch   } while (0)
2099a00fa46SSatish Balay 
21030de9b25SBarry Smith /*MC
2112c71b3e2SJacob Faibussowitsch   PetscCheck - Check that a particular condition is true
2122c71b3e2SJacob Faibussowitsch 
2132c71b3e2SJacob Faibussowitsch   Synopsis:
2142c71b3e2SJacob Faibussowitsch   #include <petscerror.h>
2152c71b3e2SJacob Faibussowitsch   void PetscCheck(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...)
2162c71b3e2SJacob Faibussowitsch 
2172c71b3e2SJacob Faibussowitsch   Collective
2182c71b3e2SJacob Faibussowitsch 
2192c71b3e2SJacob Faibussowitsch   Input Parameters:
2202c71b3e2SJacob Faibussowitsch + cond    - The boolean condition
2212c71b3e2SJacob Faibussowitsch . comm    - The communicator on which the check can be collective on
2222c71b3e2SJacob Faibussowitsch . ierr    - A nonzero error code, see include/petscerror.h for the complete list
2232c71b3e2SJacob Faibussowitsch - message - Error message in printf format
2242c71b3e2SJacob Faibussowitsch 
2252c71b3e2SJacob Faibussowitsch   Notes:
2262c71b3e2SJacob Faibussowitsch   Enabled in both optimized and debug builds.
2272c71b3e2SJacob Faibussowitsch 
22887497f52SBarry Smith   Calls `SETERRQ()` if the assertion fails, so can only be called from functions returning a
22987497f52SBarry Smith   `PetscErrorCode` (or equivalent type after conversion).
2302c71b3e2SJacob Faibussowitsch 
2312c71b3e2SJacob Faibussowitsch   Level: beginner
2322c71b3e2SJacob Faibussowitsch 
2334be741a6SBarry Smith .seealso: `PetscAssert()`, `SETERRQ()`, `PetscError()`, `PetscCall()`, `PetscCheckAbort()`
2349566063dSJacob Faibussowitsch M*/
2359371c9d4SSatish Balay #define PetscCheck(cond, comm, ierr, ...) \
2369371c9d4SSatish Balay   do { \
2379371c9d4SSatish Balay     if (PetscUnlikely(!(cond))) SETERRQ(comm, ierr, __VA_ARGS__); \
2389371c9d4SSatish Balay   } while (0)
2392c71b3e2SJacob Faibussowitsch 
2402c71b3e2SJacob Faibussowitsch /*MC
2414be741a6SBarry Smith   PetscCheckAbort - Check that a particular condition is true, otherwise prints error and aborts
2424be741a6SBarry Smith 
2434be741a6SBarry Smith   Synopsis:
2444be741a6SBarry Smith   #include <petscerror.h>
2454be741a6SBarry Smith   void PetscCheckAbort(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...)
2464be741a6SBarry Smith 
2474be741a6SBarry Smith   Collective
2484be741a6SBarry Smith 
2494be741a6SBarry Smith   Input Parameters:
2504be741a6SBarry Smith + cond    - The boolean condition
2514be741a6SBarry Smith . comm    - The communicator on which the check can be collective on
2524be741a6SBarry Smith . ierr    - A nonzero error code, see include/petscerror.h for the complete list
2534be741a6SBarry Smith - message - Error message in printf format
2544be741a6SBarry Smith 
2554be741a6SBarry Smith   Notes:
2564be741a6SBarry Smith   Enabled in both optimized and debug builds.
2574be741a6SBarry Smith 
25887497f52SBarry Smith   Calls `SETERRABORT()` if the assertion fails, can be called from a function that does not return an
25987497f52SBarry Smith   error code, such as a C++ constructor. usually `PetscCheck()` should be used.
2604be741a6SBarry Smith 
2614be741a6SBarry Smith   Level: developer
2624be741a6SBarry Smith 
2630e6b6b59SJacob Faibussowitsch .seealso: `PetscAssertAbort()`, `PetscAssert()`, `SETERRQ()`, `PetscError()`, `PetscCall()`, `PetscCheck()`, `SETTERRABORT()`
2644be741a6SBarry Smith M*/
2659371c9d4SSatish Balay #define PetscCheckAbort(cond, comm, ierr, ...) \
2660e6b6b59SJacob Faibussowitsch   do { \
2670e6b6b59SJacob Faibussowitsch     if (PetscUnlikely(!(cond))) SETERRABORT(comm, ierr, __VA_ARGS__); \
268c7481402SJacob Faibussowitsch   } while (0)
2694be741a6SBarry Smith 
2704be741a6SBarry Smith /*MC
2719ace16cdSJacob Faibussowitsch   PetscAssert - Assert that a particular condition is true
2729ace16cdSJacob Faibussowitsch 
2739ace16cdSJacob Faibussowitsch   Synopsis:
2749ace16cdSJacob Faibussowitsch   #include <petscerror.h>
2759ace16cdSJacob Faibussowitsch   void PetscAssert(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...)
2769ace16cdSJacob Faibussowitsch 
2779ace16cdSJacob Faibussowitsch   Collective
2789ace16cdSJacob Faibussowitsch 
2799ace16cdSJacob Faibussowitsch   Input Parameters:
2809ace16cdSJacob Faibussowitsch + cond    - The boolean condition
2819ace16cdSJacob Faibussowitsch . comm    - The communicator on which the check can be collective on
2829ace16cdSJacob Faibussowitsch . ierr    - A nonzero error code, see include/petscerror.h for the complete list
2839ace16cdSJacob Faibussowitsch - message - Error message in printf format
2849ace16cdSJacob Faibussowitsch 
2859ace16cdSJacob Faibussowitsch   Notes:
286c7481402SJacob Faibussowitsch   Equivalent to `PetscCheck()` if debugging is enabled, and `PetscAssume(cond)` otherwise.
2872c71b3e2SJacob Faibussowitsch 
28887497f52SBarry Smith   See `PetscCheck()` for usage and behaviour.
28987497f52SBarry Smith 
29087497f52SBarry Smith   This is needed instead of simply using `assert()` because this correctly handles the collective nature of errors under MPI
2919ace16cdSJacob Faibussowitsch 
2929ace16cdSJacob Faibussowitsch   Level: beginner
2939ace16cdSJacob Faibussowitsch 
2940e6b6b59SJacob Faibussowitsch .seealso: `PetscCheck()`, `SETERRQ()`, `PetscError()`, `PetscAssertAbort()`
2959566063dSJacob Faibussowitsch M*/
296c7481402SJacob Faibussowitsch #if PetscDefined(USE_DEBUG)
297c7481402SJacob Faibussowitsch   #define PetscAssert(cond, comm, ierr, ...) PetscCheck(cond, comm, ierr, __VA_ARGS__)
298c7481402SJacob Faibussowitsch #else
299c7481402SJacob Faibussowitsch   #define PetscAssert(cond, ...) PetscAssume(cond)
300c7481402SJacob Faibussowitsch #endif
3019ace16cdSJacob Faibussowitsch 
3029ace16cdSJacob Faibussowitsch /*MC
3030e6b6b59SJacob Faibussowitsch   PetscAssertAbort - Assert that a particular condition is true, otherwise prints error and aborts
3040e6b6b59SJacob Faibussowitsch 
3050e6b6b59SJacob Faibussowitsch   Synopsis:
3060e6b6b59SJacob Faibussowitsch   #include <petscerror.h>
3070e6b6b59SJacob Faibussowitsch   void PetscAssertAbort(bool cond, MPI_Comm comm, PetscErrorCode ierr, const char *message, ...)
3080e6b6b59SJacob Faibussowitsch 
3090e6b6b59SJacob Faibussowitsch   Collective
3100e6b6b59SJacob Faibussowitsch 
3110e6b6b59SJacob Faibussowitsch   Input Parameters:
3120e6b6b59SJacob Faibussowitsch + cond    - The boolean condition
3130e6b6b59SJacob Faibussowitsch . comm    - The communicator on which the check can be collective on
3140e6b6b59SJacob Faibussowitsch . ierr    - A nonzero error code, see include/petscerror.h for the complete list
3150e6b6b59SJacob Faibussowitsch - message - Error message in printf format
3160e6b6b59SJacob Faibussowitsch 
3170e6b6b59SJacob Faibussowitsch   Notes:
3180e6b6b59SJacob Faibussowitsch   Enabled only in debug builds. See `PetscCheckAbort()` for usage.
3190e6b6b59SJacob Faibussowitsch 
3200e6b6b59SJacob Faibussowitsch   Level: beginner
3210e6b6b59SJacob Faibussowitsch 
3220e6b6b59SJacob Faibussowitsch .seealso: `PetscCheckAbort()`, `PetscAssert()`, `PetscCheck()`, `SETERRABORT()`, `PetscError()`
3230e6b6b59SJacob Faibussowitsch M*/
3240e6b6b59SJacob Faibussowitsch #define PetscAssertAbort(cond, comm, ierr, ...) \
3250e6b6b59SJacob Faibussowitsch   do { \
3260e6b6b59SJacob Faibussowitsch     if (PetscUnlikelyDebug(!(cond))) SETERRABORT(comm, ierr, __VA_ARGS__); \
3270e6b6b59SJacob Faibussowitsch   } while (0)
3280e6b6b59SJacob Faibussowitsch 
3290e6b6b59SJacob Faibussowitsch /*MC
33049c86fc7SBarry Smith   PetscCall - Calls a PETSc function and then checks the resulting error code, if it is non-zero it calls the error
33149c86fc7SBarry Smith   handler and returns from the current function with the error code.
3329566063dSJacob Faibussowitsch 
3339566063dSJacob Faibussowitsch   Synopsis:
3349566063dSJacob Faibussowitsch   #include <petscerror.h>
33549c86fc7SBarry Smith   void PetscCall(PetscFunction(args))
3369566063dSJacob Faibussowitsch 
3379566063dSJacob Faibussowitsch   Not Collective
3389566063dSJacob Faibussowitsch 
3399566063dSJacob Faibussowitsch   Input Parameter:
34049c86fc7SBarry Smith . PetscFunction - any PETSc function that returns an error code
3419566063dSJacob Faibussowitsch 
3429566063dSJacob Faibussowitsch   Notes:
3439566063dSJacob Faibussowitsch   Once the error handler is called the calling function is then returned from with the given
34487497f52SBarry Smith   error code. Experienced users can set the error handler with `PetscPushErrorHandler()`.
3459566063dSJacob Faibussowitsch 
34687497f52SBarry Smith   `PetscCall()` cannot be used in functions returning a datatype not convertible to
34787497f52SBarry Smith   `PetscErrorCode`. For example, `PetscCall()` may not be used in functions returning void, use
34887497f52SBarry Smith   `PetscCallVoid()` in this case.
3499566063dSJacob Faibussowitsch 
3509566063dSJacob Faibussowitsch   Example Usage:
3519566063dSJacob Faibussowitsch .vb
3529566063dSJacob Faibussowitsch   PetscCall(PetscInitiailize(...)); // OK to call even when PETSc is not yet initialized!
3539566063dSJacob Faibussowitsch 
3549566063dSJacob Faibussowitsch   struct my_struct
3559566063dSJacob Faibussowitsch   {
3569566063dSJacob Faibussowitsch     void *data;
3579566063dSJacob Faibussowitsch   } my_complex_type;
3589566063dSJacob Faibussowitsch 
3599566063dSJacob Faibussowitsch   struct my_struct bar(void)
3609566063dSJacob Faibussowitsch   {
3616aad120cSJose E. Roman     PetscCall(foo(15)); // ERROR PetscErrorCode not convertible to struct my_struct!
3629566063dSJacob Faibussowitsch   }
3639566063dSJacob Faibussowitsch 
3646aad120cSJose E. Roman   PetscCall(bar()) // ERROR input not convertible to PetscErrorCode
3659566063dSJacob Faibussowitsch .ve
3669566063dSJacob Faibussowitsch 
36787497f52SBarry Smith   It is also possible to call this directly on a `PetscErrorCode` variable
36849c86fc7SBarry Smith .vb
36949c86fc7SBarry Smith   PetscCall(ierr);  // check if ierr is nonzero
37049c86fc7SBarry Smith .ve
37149c86fc7SBarry Smith 
372792fecdfSBarry Smith   Should not be used to call callback functions provided by users, `PetscCallBack()` should be used in that situation.
373ef1023bdSBarry Smith 
3746a8be23eSBarry Smith   `PetscUseTypeMethod()` or `PetscTryTypeMethod()` should be used when calling functions pointers contained in a PETSc object's `ops` array
3756a8be23eSBarry Smith 
37649c86fc7SBarry Smith   Fortran Notes:
37749c86fc7SBarry Smith     The Fortran function from which this is used must declare a variable PetscErrorCode ierr and ierr must be
37887497f52SBarry Smith     the final argument to the PETSc function being called.
37949c86fc7SBarry Smith 
38049c86fc7SBarry Smith     In the main program and in Fortran subroutines that do not have ierr as the final return parameter one
38187497f52SBarry Smith     should use `PetscCallA()`
38249c86fc7SBarry Smith 
38349c86fc7SBarry Smith   Example Fortran Usage:
38449c86fc7SBarry Smith .vb
38549c86fc7SBarry Smith   PetscErrorCode ierr
38649c86fc7SBarry Smith   Vec v
38749c86fc7SBarry Smith 
38849c86fc7SBarry Smith   ...
38949c86fc7SBarry Smith   PetscCall(VecShift(v,1.0,ierr))
39049c86fc7SBarry Smith   PetscCallA(VecShift(v,1.0,ierr))
39149c86fc7SBarry Smith .ve
39249c86fc7SBarry Smith 
3939566063dSJacob Faibussowitsch   Level: beginner
3949566063dSJacob Faibussowitsch 
39549c86fc7SBarry Smith .seealso: `SETERRQ()`, `PetscCheck()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscCallMPI()`
396792fecdfSBarry Smith           `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `CHKERRA()`, `CHKERRMPI()`, `PetscCallBack()`
3979566063dSJacob Faibussowitsch M*/
398ef1023bdSBarry Smith 
399ef1023bdSBarry Smith /*MC
400792fecdfSBarry Smith   PetscCallBack - Calls a user provided PETSc callback function and then checks the resulting error code, if it is non-zero it calls the error
401ef1023bdSBarry Smith   handler and returns from the current function with the error code.
402ef1023bdSBarry Smith 
403ef1023bdSBarry Smith   Synopsis:
404ef1023bdSBarry Smith   #include <petscerror.h>
405792fecdfSBarry Smith   void PetscCallBack(const char *functionname,PetscFunction(args))
406ef1023bdSBarry Smith 
407ef1023bdSBarry Smith   Not Collective
408ef1023bdSBarry Smith 
409ef1023bdSBarry Smith   Input Parameters:
410ef1023bdSBarry Smith + functionname - the name of the function being called, this can be a string with spaces that describes the meaning of the callback
41187497f52SBarry Smith - PetscFunction - user provided callback function that returns an error code
412ef1023bdSBarry Smith 
413ef1023bdSBarry Smith   Notes:
414ef1023bdSBarry Smith   Once the error handler is called the calling function is then returned from with the given
41587497f52SBarry Smith   error code. Experienced users can set the error handler with `PetscPushErrorHandler()`.
416ef1023bdSBarry Smith 
41787497f52SBarry Smith   `PetscCallBack()` should only be called in PETSc when a call is being made to a user provided call-back routine.
418ef1023bdSBarry Smith 
419ef1023bdSBarry Smith   Example Usage:
420ef1023bdSBarry Smith .vb
421792fecdfSBarry Smith   PetscCallBack("XXX callback to do something",a->callback(...));
422ef1023bdSBarry Smith .ve
423ef1023bdSBarry Smith 
424ef1023bdSBarry Smith   Level: developer
425ef1023bdSBarry Smith 
42687497f52SBarry Smith .seealso: `SETERRQ()`, `PetscCheck()`, `PetscCall()`, `PetscAssert()`, `PetscTraceBackErrorHandler()`, `PetscCallMPI()`
427ef1023bdSBarry Smith           `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`, `CHKERRA()`, `CHKERRMPI()`, `PetscCall()`
428ef1023bdSBarry Smith M*/
429ef1023bdSBarry Smith 
4309566063dSJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
4319566063dSJacob Faibussowitsch void PetscCall(PetscErrorCode);
432792fecdfSBarry Smith void PetscCallBack(const char *, PetscErrorCode);
4339566063dSJacob Faibussowitsch void PetscCallVoid(PetscErrorCode);
4349566063dSJacob Faibussowitsch #else
4359371c9d4SSatish Balay   #define PetscCall(...) \
4369371c9d4SSatish Balay     do { \
437e33ced7fSLisandro Dalcin       PetscErrorCode ierr_q_; \
43837154d10SBarry Smith       PetscStackUpdateLine; \
439e33ced7fSLisandro Dalcin       ierr_q_ = __VA_ARGS__; \
4409566063dSJacob Faibussowitsch       if (PetscUnlikely(ierr_q_)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_q_, PETSC_ERROR_REPEAT, " "); \
4419566063dSJacob Faibussowitsch     } while (0)
4429371c9d4SSatish Balay   #define PetscCallBack(function, ...) \
4439371c9d4SSatish Balay     do { \
444e33ced7fSLisandro Dalcin       PetscErrorCode ierr_q_; \
445e33ced7fSLisandro Dalcin       PetscStackUpdateLine; \
446e33ced7fSLisandro Dalcin       PetscStackPushExternal(function); \
447e33ced7fSLisandro Dalcin       ierr_q_ = __VA_ARGS__; \
448ef1023bdSBarry Smith       PetscStackPop; \
449ef1023bdSBarry Smith       if (PetscUnlikely(ierr_q_)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_q_, PETSC_ERROR_REPEAT, " "); \
450ef1023bdSBarry Smith     } while (0)
4519371c9d4SSatish Balay   #define PetscCallVoid(...) \
4529371c9d4SSatish Balay     do { \
453e33ced7fSLisandro Dalcin       PetscErrorCode ierr_void_; \
454e33ced7fSLisandro Dalcin       PetscStackUpdateLine; \
455e33ced7fSLisandro Dalcin       ierr_void_ = __VA_ARGS__; \
4569371c9d4SSatish Balay       if (PetscUnlikely(ierr_void_)) { \
4579371c9d4SSatish Balay         (void)PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_void_, PETSC_ERROR_REPEAT, " "); \
4589371c9d4SSatish Balay         return; \
4599371c9d4SSatish Balay       } \
4609566063dSJacob Faibussowitsch     } while (0)
4619566063dSJacob Faibussowitsch #endif
4629566063dSJacob Faibussowitsch 
4639566063dSJacob Faibussowitsch /*MC
4649566063dSJacob Faibussowitsch   CHKERRQ - Checks error code returned from PETSc function
46530de9b25SBarry Smith 
46630de9b25SBarry Smith   Synopsis:
467aaa7dc30SBarry Smith   #include <petscsys.h>
4689566063dSJacob Faibussowitsch   void CHKERRQ(PetscErrorCode ierr)
4699566063dSJacob Faibussowitsch 
4709566063dSJacob Faibussowitsch   Not Collective
4719566063dSJacob Faibussowitsch 
4729566063dSJacob Faibussowitsch   Input Parameters:
4739566063dSJacob Faibussowitsch . ierr - nonzero error code
4749566063dSJacob Faibussowitsch 
4759566063dSJacob Faibussowitsch   Notes:
47687497f52SBarry Smith   Deprecated in favor of `PetscCall()`. This routine behaves identically to it.
4779566063dSJacob Faibussowitsch 
4789566063dSJacob Faibussowitsch   Level: deprecated
4799566063dSJacob Faibussowitsch 
480db781477SPatrick Sanan .seealso: `PetscCall()`
4819566063dSJacob Faibussowitsch M*/
4829566063dSJacob Faibussowitsch #define CHKERRQ(...) PetscCall(__VA_ARGS__)
4839566063dSJacob Faibussowitsch #define CHKERRV(...) PetscCallVoid(__VA_ARGS__)
4849566063dSJacob Faibussowitsch 
485db9cea48SBarry Smith PETSC_EXTERN void PetscMPIErrorString(PetscMPIInt, char *);
486db9cea48SBarry Smith 
4879566063dSJacob Faibussowitsch /*MC
4889566063dSJacob Faibussowitsch   PetscCallMPI - Checks error code returned from MPI calls, if non-zero it calls the error
4899566063dSJacob Faibussowitsch   handler and then returns
4909566063dSJacob Faibussowitsch 
4919566063dSJacob Faibussowitsch   Synopsis:
4929566063dSJacob Faibussowitsch   #include <petscerror.h>
49349c86fc7SBarry Smith   void PetscCallMPI(MPI_Function(args))
49430de9b25SBarry Smith 
495eca87e8dSBarry Smith   Not Collective
49630de9b25SBarry Smith 
49730de9b25SBarry Smith   Input Parameters:
49849c86fc7SBarry Smith . MPI_Function - an MPI function that returns an MPI error code
49930de9b25SBarry Smith 
5009566063dSJacob Faibussowitsch   Notes:
50187497f52SBarry Smith   Always returns the error code `PETSC_ERR_MPI`; the MPI error code and string are embedded in
5029566063dSJacob Faibussowitsch   the string error message. Do not use this to call any other routines (for example PETSc
5039566063dSJacob Faibussowitsch   routines), it should only be used for direct MPI calls. Due to limitations of the
5049566063dSJacob Faibussowitsch   preprocessor this can unfortunately not easily be enforced, so the user should take care to
5059566063dSJacob Faibussowitsch   check this themselves.
5069566063dSJacob Faibussowitsch 
5079566063dSJacob Faibussowitsch   Example Usage:
5089566063dSJacob Faibussowitsch .vb
5099566063dSJacob Faibussowitsch   PetscCallMPI(MPI_Comm_size(...)); // OK, calling MPI function
5109566063dSJacob Faibussowitsch 
5119566063dSJacob Faibussowitsch   PetscCallMPI(PetscFunction(...)); // ERROR, use PetscCall() instead!
5129566063dSJacob Faibussowitsch .ve
5139566063dSJacob Faibussowitsch 
51449c86fc7SBarry Smith   Fortran Notes:
51587497f52SBarry Smith     The Fortran function from which this is used must declare a variable `PetscErrorCode` ierr and ierr must be
51649c86fc7SBarry Smith     the final argument to the MPI function being called.
51749c86fc7SBarry Smith 
51849c86fc7SBarry Smith     In the main program and in Fortran subroutines that do not have ierr as the final return parameter one
51987497f52SBarry Smith     should use `PetscCallMPIA()`
52049c86fc7SBarry Smith 
52149c86fc7SBarry Smith   Fortran Usage:
52249c86fc7SBarry Smith .vb
52349c86fc7SBarry Smith   PetscErrorCode ierr or integer ierr
52449c86fc7SBarry Smith   ...
52549c86fc7SBarry Smith   PetscCallMPI(MPI_Comm_size(...,ierr))
52649c86fc7SBarry Smith   PetscCallMPIA(MPI_Comm_size(...,ierr)) ! Will abort after calling error handler
52749c86fc7SBarry Smith 
52849c86fc7SBarry Smith   PetscCallMPI(MPI_Comm_size(...,eflag)) ! ERROR, final argument must be ierr
52949c86fc7SBarry Smith .ve
53049c86fc7SBarry Smith 
53130de9b25SBarry Smith   Level: beginner
53230de9b25SBarry Smith 
533db781477SPatrick Sanan .seealso: `SETERRMPI()`, `PetscCall()`, `SETERRQ()`, `SETERRABORT()`, `PetscCallAbort()`,
534db781477SPatrick Sanan           `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`
53530de9b25SBarry Smith M*/
5363fcd9f07SJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
53763a3b9bcSJacob Faibussowitsch void PetscCallMPI(PetscMPIInt);
538064a246eSJacob Faibussowitsch #else
5399371c9d4SSatish Balay   #define PetscCallMPI(...) \
5409371c9d4SSatish Balay     do { \
541e33ced7fSLisandro Dalcin       PetscMPIInt _7_errorcode; \
542e33ced7fSLisandro Dalcin       char        _7_errorstring[2 * MPI_MAX_ERROR_STRING]; \
543ef1023bdSBarry Smith       PetscStackUpdateLine; \
544792fecdfSBarry Smith       PetscStackPushExternal("MPI function"); \
545d71ae5a4SJacob Faibussowitsch       { \
546d71ae5a4SJacob Faibussowitsch         _7_errorcode = __VA_ARGS__; \
547d71ae5a4SJacob Faibussowitsch       } \
548ef1023bdSBarry Smith       PetscStackPop; \
5499566063dSJacob Faibussowitsch       if (PetscUnlikely(_7_errorcode)) { \
550db9cea48SBarry Smith         PetscMPIErrorString(_7_errorcode, (char *)_7_errorstring); \
551db9cea48SBarry Smith         SETERRQ(PETSC_COMM_SELF, PETSC_ERR_MPI, "MPI error %d %s", (int)_7_errorcode, _7_errorstring); \
5523fcd9f07SJacob Faibussowitsch       } \
5533fcd9f07SJacob Faibussowitsch     } while (0)
5549566063dSJacob Faibussowitsch #endif
555064a246eSJacob Faibussowitsch 
5567037b0edSPatrick Sanan /*MC
5579566063dSJacob Faibussowitsch   CHKERRMPI - Checks error code returned from MPI calls, if non-zero it calls the error
5589566063dSJacob Faibussowitsch   handler and then returns
5599566063dSJacob Faibussowitsch 
5609566063dSJacob Faibussowitsch   Synopsis:
5619566063dSJacob Faibussowitsch   #include <petscerror.h>
5629566063dSJacob Faibussowitsch   void CHKERRMPI(PetscErrorCode ierr)
5639566063dSJacob Faibussowitsch 
5649566063dSJacob Faibussowitsch   Not Collective
5659566063dSJacob Faibussowitsch 
5669566063dSJacob Faibussowitsch   Input Parameter:
5679566063dSJacob Faibussowitsch . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
5689566063dSJacob Faibussowitsch 
5699566063dSJacob Faibussowitsch   Notes:
57087497f52SBarry Smith   Deprecated in favor of `PetscCallMPI()`. This routine behaves identically to it.
5719566063dSJacob Faibussowitsch 
5729566063dSJacob Faibussowitsch   Level: deprecated
5739566063dSJacob Faibussowitsch 
574db781477SPatrick Sanan .seealso: `PetscCallMPI()`
5759566063dSJacob Faibussowitsch M*/
5769566063dSJacob Faibussowitsch #define CHKERRMPI(...) PetscCallMPI(__VA_ARGS__)
5779566063dSJacob Faibussowitsch 
5789566063dSJacob Faibussowitsch /*MC
5799566063dSJacob Faibussowitsch   PetscCallAbort - Checks error code returned from PETSc function, if non-zero it aborts immediately
5809566063dSJacob Faibussowitsch 
5819566063dSJacob Faibussowitsch   Synopsis:
5829566063dSJacob Faibussowitsch   #include <petscerror.h>
5839566063dSJacob Faibussowitsch   void PetscCallAbort(MPI_Comm comm, PetscErrorCode ierr)
5849566063dSJacob Faibussowitsch 
585c3339decSBarry Smith   Collective
5869566063dSJacob Faibussowitsch 
5879566063dSJacob Faibussowitsch   Input Parameters:
5889566063dSJacob Faibussowitsch + comm - the MPI communicator on which to abort
5899566063dSJacob Faibussowitsch - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
5909566063dSJacob Faibussowitsch 
5919566063dSJacob Faibussowitsch   Notes:
59287497f52SBarry Smith   This macro has identical type and usage semantics to `PetscCall()` with the important caveat
5939566063dSJacob Faibussowitsch   that this macro does not return. Instead, if ierr is nonzero it calls the PETSc error handler
59487497f52SBarry Smith   and then immediately calls `MPI_Abort()`. It can therefore be used anywhere.
5959566063dSJacob Faibussowitsch 
59687497f52SBarry Smith   As per `MPI_Abort()` semantics the communicator passed must be valid, although there is currently
59787497f52SBarry Smith   no attempt made at handling any potential errors from `MPI_Abort()`. Note that while
59887497f52SBarry Smith   `MPI_Abort()` is required to terminate only those processes which reside on comm, it is often
59987497f52SBarry Smith   the case that `MPI_Abort()` terminates *all* processes.
6009566063dSJacob Faibussowitsch 
6019566063dSJacob Faibussowitsch   Example Usage:
6029566063dSJacob Faibussowitsch .vb
6039566063dSJacob Faibussowitsch   PetscErrorCode boom(void) { return PETSC_ERR_MEM; }
6049566063dSJacob Faibussowitsch 
6059566063dSJacob Faibussowitsch   void foo(void)
6069566063dSJacob Faibussowitsch   {
6079566063dSJacob Faibussowitsch     PetscCallAbort(PETSC_COMM_WORLD,boom()); // OK, does not return a type
6089566063dSJacob Faibussowitsch   }
6099566063dSJacob Faibussowitsch 
6109566063dSJacob Faibussowitsch   double bar(void)
6119566063dSJacob Faibussowitsch   {
6129566063dSJacob Faibussowitsch     PetscCallAbort(PETSC_COMM_WORLD,boom()); // OK, does not return a type
6139566063dSJacob Faibussowitsch   }
6149566063dSJacob Faibussowitsch 
6159566063dSJacob Faibussowitsch   PetscCallAbort(MPI_COMM_NULL,boom()); // ERROR, communicator should be valid
6169566063dSJacob Faibussowitsch 
6179566063dSJacob Faibussowitsch   struct baz
6189566063dSJacob Faibussowitsch   {
6199566063dSJacob Faibussowitsch     baz()
6209566063dSJacob Faibussowitsch     {
6219566063dSJacob Faibussowitsch       PetscCallAbort(PETSC_COMM_SELF,boom()); // OK
6229566063dSJacob Faibussowitsch     }
6239566063dSJacob Faibussowitsch 
6249566063dSJacob Faibussowitsch     ~baz()
6259566063dSJacob Faibussowitsch     {
6269566063dSJacob Faibussowitsch       PetscCallAbort(PETSC_COMM_SELF,boom()); // OK (in fact the only way to handle PETSc errors)
6279566063dSJacob Faibussowitsch     }
6289566063dSJacob Faibussowitsch   };
6299566063dSJacob Faibussowitsch .ve
6309566063dSJacob Faibussowitsch 
6319566063dSJacob Faibussowitsch   Level: intermediate
6329566063dSJacob Faibussowitsch 
633db781477SPatrick Sanan .seealso: `SETERRABORT()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`,
6345687f061SJacob Faibussowitsch           `SETERRQ()`, `CHKMEMQ`, `PetscCallMPI()`, `PetscCallCXXAbort()`
6359566063dSJacob Faibussowitsch M*/
6369566063dSJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
6379566063dSJacob Faibussowitsch void PetscCallAbort(MPI_Comm, PetscErrorCode);
6389566063dSJacob Faibussowitsch void PetscCallContinue(PetscErrorCode);
6399566063dSJacob Faibussowitsch #else
6409371c9d4SSatish Balay   #define PetscCallAbort(comm, ...) \
6419371c9d4SSatish Balay     do { \
6429566063dSJacob Faibussowitsch       PetscErrorCode ierr_abort_ = __VA_ARGS__; \
6439566063dSJacob Faibussowitsch       if (PetscUnlikely(ierr_abort_)) { \
6449566063dSJacob Faibussowitsch         PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_abort_, PETSC_ERROR_REPEAT, " "); \
6459566063dSJacob Faibussowitsch         MPI_Abort(comm, ierr_abort_); \
6469566063dSJacob Faibussowitsch       } \
6479566063dSJacob Faibussowitsch     } while (0)
6489371c9d4SSatish Balay   #define PetscCallContinue(...) \
6499371c9d4SSatish Balay     do { \
6509566063dSJacob Faibussowitsch       PetscErrorCode ierr_continue_ = __VA_ARGS__; \
6519566063dSJacob Faibussowitsch       if (PetscUnlikely(ierr_continue_)) PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_continue_, PETSC_ERROR_REPEAT, " "); \
6529566063dSJacob Faibussowitsch     } while (0)
6539566063dSJacob Faibussowitsch #endif
6549566063dSJacob Faibussowitsch 
6559566063dSJacob Faibussowitsch /*MC
6569566063dSJacob Faibussowitsch   CHKERRABORT - Checks error code returned from PETSc function. If non-zero it aborts immediately.
6579566063dSJacob Faibussowitsch 
6589566063dSJacob Faibussowitsch   Synopsis:
6599566063dSJacob Faibussowitsch   #include <petscerror.h>
6609566063dSJacob Faibussowitsch   void CHKERRABORT(MPI_Comm comm, PetscErrorCode ierr)
6619566063dSJacob Faibussowitsch 
6629566063dSJacob Faibussowitsch   Not Collective
6639566063dSJacob Faibussowitsch 
6649566063dSJacob Faibussowitsch   Input Parameters:
6659566063dSJacob Faibussowitsch + comm - the MPI communicator
6669566063dSJacob Faibussowitsch - ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
6679566063dSJacob Faibussowitsch 
6689566063dSJacob Faibussowitsch   Notes:
66987497f52SBarry Smith   Deprecated in favor of `PetscCallAbort()`. This routine behaves identically to it.
6709566063dSJacob Faibussowitsch 
6719566063dSJacob Faibussowitsch   Level: deprecated
6729566063dSJacob Faibussowitsch 
673db781477SPatrick Sanan .seealso: `PetscCallAbort()`
6749566063dSJacob Faibussowitsch M*/
6759566063dSJacob Faibussowitsch #define CHKERRABORT(comm, ...) PetscCallAbort(comm, __VA_ARGS__)
6769566063dSJacob Faibussowitsch #define CHKERRCONTINUE(...)    PetscCallContinue(__VA_ARGS__)
6779566063dSJacob Faibussowitsch 
6789566063dSJacob Faibussowitsch /*MC
67987497f52SBarry Smith    CHKERRA - Fortran-only replacement for use of `CHKERRQ()` in the main program, which aborts immediately
680f388eb8bSPatrick Sanan 
681f388eb8bSPatrick Sanan    Synopsis:
682f388eb8bSPatrick Sanan    #include <petscsys.h>
683f388eb8bSPatrick Sanan    PetscErrorCode CHKERRA(PetscErrorCode ierr)
684f388eb8bSPatrick Sanan 
685f388eb8bSPatrick Sanan    Not Collective
686f388eb8bSPatrick Sanan 
687f388eb8bSPatrick Sanan    Input Parameters:
688f388eb8bSPatrick Sanan .  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
689f388eb8bSPatrick Sanan 
69087497f52SBarry Smith   Level: deprecated
691f388eb8bSPatrick Sanan 
69287497f52SBarry Smith    Note:
69387497f52SBarry Smith    This macro is rarely needed, normal usage is `PetscCallA()` in the main Fortran program.
694f388eb8bSPatrick Sanan 
69587497f52SBarry Smith .seealso: `PetscCall()`, `PetscCallA()`, `PetscCallAbort()`, `CHKERRQ()`, `SETERRA()`, `SETERRQ()`, `SETERRABORT()`
696f388eb8bSPatrick Sanan M*/
697f388eb8bSPatrick Sanan 
6981e4f893aSSatish Balay PETSC_EXTERN PetscBool petscwaitonerrorflg;
6991e4f893aSSatish Balay PETSC_EXTERN PetscBool petscindebugger;
7007c66cc67SJunchao Zhang 
7017c66cc67SJunchao Zhang /*MC
7027c66cc67SJunchao Zhang    PETSCABORT - Call MPI_Abort with an informative error code
7037c66cc67SJunchao Zhang 
7047c66cc67SJunchao Zhang    Synopsis:
7057c66cc67SJunchao Zhang    #include <petscsys.h>
7067c66cc67SJunchao Zhang    PETSCABORT(MPI_Comm comm, PetscErrorCode ierr)
7077c66cc67SJunchao Zhang 
7087c66cc67SJunchao Zhang    Collective
7097c66cc67SJunchao Zhang 
7107c66cc67SJunchao Zhang    Input Parameters:
7117c66cc67SJunchao Zhang +  comm - A communicator, so that the error can be collective
7127c66cc67SJunchao Zhang -  ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
7137c66cc67SJunchao Zhang 
714bf4d2887SBarry Smith    Level: advanced
7157c66cc67SJunchao Zhang 
716bf4d2887SBarry Smith    Notes:
717bf4d2887SBarry Smith    If the option -start_in_debugger was used then this calls abort() to stop the program in the debugger.
718bf4d2887SBarry Smith 
71987497f52SBarry Smith    if `PetscCIEnabledPortableErrorOutput` is set it strives to exit cleanly without call `MPI_Abort()`
720660278c0SBarry Smith 
7217c66cc67SJunchao Zhang  M*/
722*29f88feaSJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
723*29f88feaSJacob Faibussowitsch void PETSCABORT(MPI_Comm, PetscErrorCode);
724*29f88feaSJacob Faibussowitsch #else
7259371c9d4SSatish Balay   #define PETSCABORT(comm, ...) \
7269371c9d4SSatish Balay     do { \
727baae8e41SSatish Balay       if (petscwaitonerrorflg) PetscSleep(1000); \
728bf4d2887SBarry Smith       if (petscindebugger) abort(); \
7293fcd9f07SJacob Faibussowitsch       else { \
7303fcd9f07SJacob Faibussowitsch         PetscErrorCode ierr_petsc_abort_ = __VA_ARGS__; \
731660278c0SBarry Smith         PetscMPIInt    size; \
732660278c0SBarry Smith         MPI_Comm_size(comm, &size); \
733660278c0SBarry Smith         if (PetscCIEnabledPortableErrorOutput && size == PetscGlobalSize && ierr_petsc_abort_ != PETSC_ERR_SIG) { \
7349371c9d4SSatish Balay           MPI_Finalize(); \
7359371c9d4SSatish Balay           exit(0); \
736660278c0SBarry Smith         } else if (PetscCIEnabledPortableErrorOutput && PetscGlobalSize == 1) { \
737660278c0SBarry Smith           exit(0); \
738660278c0SBarry Smith         } else { \
739660278c0SBarry Smith           MPI_Abort(comm, (PetscMPIInt)ierr_petsc_abort_); \
740660278c0SBarry Smith         } \
7413fcd9f07SJacob Faibussowitsch       } \
7427c66cc67SJunchao Zhang     } while (0)
743*29f88feaSJacob Faibussowitsch #endif
744986eef2eSBarry Smith 
7459566063dSJacob Faibussowitsch #ifdef PETSC_CLANGUAGE_CXX
746986eef2eSBarry Smith   /*MC
7479566063dSJacob Faibussowitsch   PetscCallThrow - Checks error code, if non-zero it calls the C++ error handler which throws
7489566063dSJacob Faibussowitsch   an exception
749986eef2eSBarry Smith 
750986eef2eSBarry Smith   Synopsis:
7519566063dSJacob Faibussowitsch   #include <petscerror.h>
7529566063dSJacob Faibussowitsch   void PetscCallThrow(PetscErrorCode ierr)
753986eef2eSBarry Smith 
754986eef2eSBarry Smith   Not Collective
755986eef2eSBarry Smith 
7569566063dSJacob Faibussowitsch   Input Parameter:
757986eef2eSBarry Smith . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
758986eef2eSBarry Smith 
759986eef2eSBarry Smith   Notes:
7609566063dSJacob Faibussowitsch   Requires PETSc to be configured with clanguage = c++. Throws a std::runtime_error() on error.
761986eef2eSBarry Smith 
76287497f52SBarry Smith   Once the error handler throws the exception you can use `PetscCallVoid()` which returns without
76387497f52SBarry Smith   an error code (bad idea since the error is ignored) or `PetscCallAbort()` to have `MPI_Abort()`
7649566063dSJacob Faibussowitsch   called immediately.
7659566063dSJacob Faibussowitsch 
7669566063dSJacob Faibussowitsch   Level: beginner
7679566063dSJacob Faibussowitsch 
768db781477SPatrick Sanan .seealso: `SETERRQ()`, `PetscCall()`, `SETERRABORT()`, `PetscCallAbort()`, `PetscTraceBackErrorHandler()`,
769db781477SPatrick Sanan           `PetscPushErrorHandler()`, `PetscError()`, `CHKMEMQ`
770986eef2eSBarry Smith M*/
7719371c9d4SSatish Balay   #define PetscCallThrow(...) \
7729371c9d4SSatish Balay     do { \
7739566063dSJacob Faibussowitsch       PetscErrorCode ierr_cxx_ = __VA_ARGS__; \
7749566063dSJacob Faibussowitsch       if (PetscUnlikely(ierr_cxx_)) PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_cxx_, PETSC_ERROR_IN_CXX, PETSC_NULLPTR); \
775ffc4695bSBarry Smith     } while (0)
77685614651SBarry Smith 
777cc26af49SMatthew Knepley   /*MC
778cc26af49SMatthew Knepley   CHKERRXX - Checks error code, if non-zero it calls the C++ error handler which throws an exception
779cc26af49SMatthew Knepley 
780cc26af49SMatthew Knepley   Synopsis:
7819566063dSJacob Faibussowitsch   #include <petscerror.h>
7823af045c5SBarry Smith   void CHKERRXX(PetscErrorCode ierr)
783cc26af49SMatthew Knepley 
784eca87e8dSBarry Smith   Not Collective
785cc26af49SMatthew Knepley 
7869566063dSJacob Faibussowitsch   Input Parameter:
7873af045c5SBarry Smith . ierr - nonzero error code, see the list of standard error codes in include/petscerror.h
788cc26af49SMatthew Knepley 
789cc26af49SMatthew Knepley   Notes:
79087497f52SBarry Smith   Deprecated in favor of `PetscCallThrow()`. This routine behaves identically to it.
791cc26af49SMatthew Knepley 
7929566063dSJacob Faibussowitsch   Level: deprecated
793cc26af49SMatthew Knepley 
794db781477SPatrick Sanan .seealso: `PetscCallThrow()`
795cc26af49SMatthew Knepley M*/
7969566063dSJacob Faibussowitsch   #define CHKERRXX(...) PetscCallThrow(__VA_ARGS__)
797fd705b32SMatthew Knepley #endif
798fd705b32SMatthew Knepley 
7993f520e80SJunchao Zhang /*MC
8009566063dSJacob Faibussowitsch   PetscCallCXX - Checks C++ function calls and if they throw an exception, catch it and then
8019566063dSJacob Faibussowitsch   return a PETSc error code
8023f520e80SJunchao Zhang 
8033f520e80SJunchao Zhang   Synopsis:
8049566063dSJacob Faibussowitsch   #include <petscerror.h>
8055687f061SJacob Faibussowitsch   void PetscCallCXX(...) noexcept;
8063f520e80SJunchao Zhang 
8073f520e80SJunchao Zhang   Not Collective
8083f520e80SJunchao Zhang 
8099566063dSJacob Faibussowitsch   Input Parameter:
8105687f061SJacob Faibussowitsch . __VA_ARGS__ - An arbitrary expression
8115687f061SJacob Faibussowitsch 
8125687f061SJacob Faibussowitsch   Level: beginner
8133f520e80SJunchao Zhang 
8143f520e80SJunchao Zhang   Notes:
8155687f061SJacob Faibussowitsch   `PetscCallCXX(...)` is a macro replacement for
8169566063dSJacob Faibussowitsch .vb
8179566063dSJacob Faibussowitsch   try {
8185687f061SJacob Faibussowitsch     __VA_ARGS__;
8199566063dSJacob Faibussowitsch   } catch (const std::exception& e) {
8209566063dSJacob Faibussowitsch     return ConvertToPetscErrorCode(e);
8219566063dSJacob Faibussowitsch   }
8229566063dSJacob Faibussowitsch .ve
8239566063dSJacob Faibussowitsch   Due to the fact that it catches any (reasonable) exception, it is essentially noexcept.
8243f520e80SJunchao Zhang 
8255687f061SJacob Faibussowitsch   If you cannot return a `PetscErrorCode` use `PetscCallCXXAbort()` instead.
8265687f061SJacob Faibussowitsch 
8279566063dSJacob Faibussowitsch   Example Usage:
8289566063dSJacob Faibussowitsch .vb
8299566063dSJacob Faibussowitsch   void foo(void) { throw std::runtime_error("error"); }
8303f520e80SJunchao Zhang 
8319566063dSJacob Faibussowitsch   void bar()
8329566063dSJacob Faibussowitsch   {
833e8952933SJacob Faibussowitsch     PetscCallCXX(foo()); // ERROR bar() does not return PetscErrorCode
8349566063dSJacob Faibussowitsch   }
8359566063dSJacob Faibussowitsch 
8369566063dSJacob Faibussowitsch   PetscErrorCode baz()
8379566063dSJacob Faibussowitsch   {
8389566063dSJacob Faibussowitsch     PetscCallCXX(foo()); // OK
8399566063dSJacob Faibussowitsch 
8409566063dSJacob Faibussowitsch     PetscCallCXX(
8419566063dSJacob Faibussowitsch       bar();
842d5b43468SJose E. Roman       foo(); // OK multiple statements allowed
8439566063dSJacob Faibussowitsch     );
8449566063dSJacob Faibussowitsch   }
8459566063dSJacob Faibussowitsch 
8469566063dSJacob Faibussowitsch   struct bop
8479566063dSJacob Faibussowitsch   {
8489566063dSJacob Faibussowitsch     bop()
8499566063dSJacob Faibussowitsch     {
850e8952933SJacob Faibussowitsch       PetscCallCXX(foo()); // ERROR returns PetscErrorCode, cannot be used in constructors
8519566063dSJacob Faibussowitsch     }
8529566063dSJacob Faibussowitsch   };
8539566063dSJacob Faibussowitsch 
854e8952933SJacob Faibussowitsch   // ERROR contains do-while, cannot be used as function-try block
8559566063dSJacob Faibussowitsch   PetscErrorCode qux() PetscCallCXX(
8569566063dSJacob Faibussowitsch     bar();
8579566063dSJacob Faibussowitsch     baz();
8589566063dSJacob Faibussowitsch     foo();
8599566063dSJacob Faibussowitsch     return 0;
8609566063dSJacob Faibussowitsch   )
8619566063dSJacob Faibussowitsch .ve
8629566063dSJacob Faibussowitsch 
8635687f061SJacob Faibussowitsch .seealso: `PetscCallCXXAbort()`, `PetscCallThrow()`, `SETERRQ()`, `PetscCall()`,
8645687f061SJacob Faibussowitsch `SETERRABORT()`, `PetscCallAbort()`, `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`,
8655687f061SJacob Faibussowitsch `PetscError()`, `CHKMEMQ`
8663f520e80SJunchao Zhang M*/
8679371c9d4SSatish Balay #define PetscCallCXX(...) \
8689371c9d4SSatish Balay   do { \
86937154d10SBarry Smith     PetscStackUpdateLine; \
8703fcd9f07SJacob Faibussowitsch     try { \
8713fcd9f07SJacob Faibussowitsch       __VA_ARGS__; \
872d71ae5a4SJacob Faibussowitsch     } catch (const std::exception &e) { \
873d71ae5a4SJacob Faibussowitsch       SETERRQ(PETSC_COMM_SELF, PETSC_ERR_LIB, "%s", e.what()); \
874d71ae5a4SJacob Faibussowitsch     } \
8753fcd9f07SJacob Faibussowitsch   } while (0)
8765687f061SJacob Faibussowitsch 
8775687f061SJacob Faibussowitsch /*MC
8785687f061SJacob Faibussowitsch   PetscCallCXXAbort - Like `PetscCallCXX()` but calls `MPI_Abort()` instead of returning an
8795687f061SJacob Faibussowitsch   error-code
8805687f061SJacob Faibussowitsch 
8815687f061SJacob Faibussowitsch   Synopsis:
8825687f061SJacob Faibussowitsch   #include <petscerror.h>
8835687f061SJacob Faibussowitsch   void PetscCallCXXAbort(MPI_Comm comm, ...) noexcept;
8845687f061SJacob Faibussowitsch 
8855687f061SJacob Faibussowitsch   Collective on `comm`
8865687f061SJacob Faibussowitsch 
8875687f061SJacob Faibussowitsch   Input Parameters:
8885687f061SJacob Faibussowitsch + comm        - The MPI communicator to abort on
8895687f061SJacob Faibussowitsch - __VA_ARGS__ - An arbitrary expression
8905687f061SJacob Faibussowitsch 
8915687f061SJacob Faibussowitsch   Level: beginner
8925687f061SJacob Faibussowitsch 
8935687f061SJacob Faibussowitsch   Notes:
8945687f061SJacob Faibussowitsch   This macro may be used to check C++ expressions for exceptions in cases where you cannot
8955687f061SJacob Faibussowitsch   return an error code. This includes constructors, destructors, copy/move assignment functions
8965687f061SJacob Faibussowitsch   or constructors among others.
8975687f061SJacob Faibussowitsch 
8985687f061SJacob Faibussowitsch   If an exception is caught, the macro calls `SETERRABORT()` on `comm`. The exception must
8995687f061SJacob Faibussowitsch   derive from `std::exception` in order to be caught.
9005687f061SJacob Faibussowitsch 
9015687f061SJacob Faibussowitsch   If the routine _can_ return an error-code it is highly advised to use `PetscCallCXX()`
9025687f061SJacob Faibussowitsch   instead.
9035687f061SJacob Faibussowitsch 
9045687f061SJacob Faibussowitsch   See `PetscCallCXX()` for additional discussion.
9055687f061SJacob Faibussowitsch 
9065687f061SJacob Faibussowitsch   Fortran Note:
9075687f061SJacob Faibussowitsch   Not available from Fortran.
9085687f061SJacob Faibussowitsch 
9095687f061SJacob Faibussowitsch   Example Usage:
9105687f061SJacob Faibussowitsch .vb
9115687f061SJacob Faibussowitsch   class Foo
9125687f061SJacob Faibussowitsch   {
9135687f061SJacob Faibussowitsch     std::vector<int> data_;
9145687f061SJacob Faibussowitsch 
9155687f061SJacob Faibussowitsch   public:
9165687f061SJacob Faibussowitsch     // normally std::vector::reserve() may raise an exception, but since we handle it with
9175687f061SJacob Faibussowitsch     // PetscCallCXXAbort() we may mark this routine as noexcept!
9185687f061SJacob Faibussowitsch     Foo() noexcept
9195687f061SJacob Faibussowitsch     {
9205687f061SJacob Faibussowitsch       PetscCallCXXAbort(PETSC_COMM_SELF, data_.reserve(10));
9215687f061SJacob Faibussowitsch     }
9225687f061SJacob Faibussowitsch   };
9235687f061SJacob Faibussowitsch 
9245687f061SJacob Faibussowitsch   std::vector<int> bar()
9255687f061SJacob Faibussowitsch   {
9265687f061SJacob Faibussowitsch     std::vector<int> v;
9275687f061SJacob Faibussowitsch 
9285687f061SJacob Faibussowitsch     PetscFunctionBegin;
9295687f061SJacob Faibussowitsch     // OK!
9305687f061SJacob Faibussowitsch     PetscCallCXXAbort(PETSC_COMM_SELF, v.emplace_back(1));
9315687f061SJacob Faibussowitsch     PetscFunctionReturn(v);
9325687f061SJacob Faibussowitsch   }
9335687f061SJacob Faibussowitsch 
9345687f061SJacob Faibussowitsch   PetscErrorCode baz()
9355687f061SJacob Faibussowitsch   {
9365687f061SJacob Faibussowitsch     std::vector<int> v;
9375687f061SJacob Faibussowitsch 
9385687f061SJacob Faibussowitsch     PetscFunctionBegin;
9395687f061SJacob Faibussowitsch     // WRONG! baz() returns a PetscErrorCode, prefer PetscCallCXX() instead
9405687f061SJacob Faibussowitsch     PetscCallCXXAbort(PETSC_COMM_SELF, v.emplace_back(1));
9415687f061SJacob Faibussowitsch     PetscFunctionReturn(0);
9425687f061SJacob Faibussowitsch   }
9435687f061SJacob Faibussowitsch .ve
9445687f061SJacob Faibussowitsch 
9455687f061SJacob Faibussowitsch .seealso: `PetscCallCXX()`, `SETERRABORT()`, `PetscCallAbort()`
9465687f061SJacob Faibussowitsch M*/
9475687f061SJacob Faibussowitsch #define PetscCallCXXAbort(comm, ...) \
9485687f061SJacob Faibussowitsch   do { \
9495687f061SJacob Faibussowitsch     PetscStackUpdateLine; \
9505687f061SJacob Faibussowitsch     try { \
9515687f061SJacob Faibussowitsch       __VA_ARGS__; \
9525687f061SJacob Faibussowitsch     } catch (const std::exception &e) { \
9535687f061SJacob Faibussowitsch       SETERRABORT(comm, PETSC_ERR_LIB, "%s", e.what()); \
9545687f061SJacob Faibussowitsch     } \
9555687f061SJacob Faibussowitsch   } while (0)
9565687f061SJacob Faibussowitsch 
9575687f061SJacob Faibussowitsch #define PetscCallCXXAbort(comm, ...) \
9585687f061SJacob Faibussowitsch   do { \
9595687f061SJacob Faibussowitsch     PetscStackUpdateLine; \
9605687f061SJacob Faibussowitsch     try { \
9615687f061SJacob Faibussowitsch       __VA_ARGS__; \
9625687f061SJacob Faibussowitsch     } catch (const std::exception &e) { \
9635687f061SJacob Faibussowitsch       SETERRABORT(comm, PETSC_ERR_LIB, "%s", e.what()); \
9645687f061SJacob Faibussowitsch     } \
9655687f061SJacob Faibussowitsch   } while (0)
9663f520e80SJunchao Zhang 
96730de9b25SBarry Smith /*MC
9689566063dSJacob Faibussowitsch   CHKERRCXX - Checks C++ function calls and if they throw an exception, catch it and then
9699566063dSJacob Faibussowitsch   return a PETSc error code
9709566063dSJacob Faibussowitsch 
9719566063dSJacob Faibussowitsch   Synopsis:
9729566063dSJacob Faibussowitsch   #include <petscerror.h>
9739566063dSJacob Faibussowitsch   void CHKERRCXX(func) noexcept;
9749566063dSJacob Faibussowitsch 
9759566063dSJacob Faibussowitsch   Not Collective
9769566063dSJacob Faibussowitsch 
9779566063dSJacob Faibussowitsch   Input Parameter:
9789566063dSJacob Faibussowitsch . func - C++ function calls
9799566063dSJacob Faibussowitsch 
9809566063dSJacob Faibussowitsch   Notes:
98187497f52SBarry Smith   Deprecated in favor of `PetscCallCXX()`. This routine behaves identically to it.
9829566063dSJacob Faibussowitsch 
9839566063dSJacob Faibussowitsch   Level: deprecated
9849566063dSJacob Faibussowitsch 
985db781477SPatrick Sanan .seealso: `PetscCallCXX()`
9869566063dSJacob Faibussowitsch M*/
9879566063dSJacob Faibussowitsch #define CHKERRCXX(...) PetscCallCXX(__VA_ARGS__)
9889566063dSJacob Faibussowitsch 
9899566063dSJacob Faibussowitsch /*MC
99030de9b25SBarry Smith    CHKMEMQ - Checks the memory for corruption, calls error handler if any is detected
99130de9b25SBarry Smith 
99230de9b25SBarry Smith    Synopsis:
993aaa7dc30SBarry Smith    #include <petscsys.h>
99491d3bdf4SKris Buschelman    CHKMEMQ;
99530de9b25SBarry Smith 
996eca87e8dSBarry Smith    Not Collective
997eca87e8dSBarry Smith 
99830de9b25SBarry Smith   Level: beginner
99930de9b25SBarry Smith 
100030de9b25SBarry Smith    Notes:
1001a17b96a8SKyle Gerard Felker     We highly recommend using Valgrind https://petsc.org/release/faq/#valgrind or for NVIDIA CUDA systems
10025ed36255SBarry Smith     https://docs.nvidia.com/cuda/cuda-memcheck/index.html for finding memory problems. The ``CHKMEMQ`` macro is useful on systems that
10035ed36255SBarry Smith     do not have valgrind, but is not as good as valgrind or cuda-memcheck.
10041957e957SBarry Smith 
100587497f52SBarry Smith     Must run with the option -malloc_debug (-malloc_test in debug mode; or if `PetscMallocSetDebug()` called) to enable this option
100630de9b25SBarry Smith 
100730de9b25SBarry Smith     Once the error handler is called the calling function is then returned from with the given error code.
100830de9b25SBarry Smith 
100930de9b25SBarry Smith     By defaults prints location where memory that is corrupted was allocated.
101030de9b25SBarry Smith 
101187497f52SBarry Smith     Use `CHKMEMA` for functions that return void
1012f621e05eSBarry Smith 
1013db781477SPatrick Sanan .seealso: `PetscTraceBackErrorHandler()`, `PetscPushErrorHandler()`, `PetscError()`, `SETERRQ()`, `PetscMallocValidate()`
101430de9b25SBarry Smith M*/
10156d210af2SJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
1016064a246eSJacob Faibussowitsch   #define CHKMEMQ
1017064a246eSJacob Faibussowitsch   #define CHKMEMA
10186d210af2SJacob Faibussowitsch #else
10199371c9d4SSatish Balay   #define CHKMEMQ \
10209371c9d4SSatish Balay     do { \
102186d09637SLisandro Dalcin       PetscErrorCode ierr_memq_ = PetscMallocValidate(__LINE__, PETSC_FUNCTION_NAME, __FILE__); \
102286d09637SLisandro Dalcin       if (PetscUnlikely(ierr_memq_)) return PetscError(PETSC_COMM_SELF, __LINE__, PETSC_FUNCTION_NAME, __FILE__, ierr_memq_, PETSC_ERROR_REPEAT, " "); \
102386d09637SLisandro Dalcin     } while (0)
10246d210af2SJacob Faibussowitsch   #define CHKMEMA PetscMallocValidate(__LINE__, PETSC_FUNCTION_NAME, __FILE__)
1025064a246eSJacob Faibussowitsch #endif
10269566063dSJacob Faibussowitsch 
1027668f157eSBarry Smith /*E
1028668f157eSBarry Smith   PetscErrorType - passed to the PETSc error handling routines indicating if this is the first or a later call to the error handlers
1029668f157eSBarry Smith 
1030668f157eSBarry Smith   Level: advanced
1031668f157eSBarry Smith 
103287497f52SBarry Smith   `PETSC_ERROR_IN_CXX` indicates the error was detected in C++ and an exception should be generated
1033d736bfebSBarry Smith 
103495452b02SPatrick Sanan   Developer Notes:
103595452b02SPatrick Sanan     This is currently used to decide when to print the detailed information about the run in PetscTraceBackErrorHandler()
1036668f157eSBarry Smith 
103787497f52SBarry Smith .seealso: `PetscError()`, `SETERRQ()`
1038668f157eSBarry Smith E*/
10399371c9d4SSatish Balay typedef enum {
10409371c9d4SSatish Balay   PETSC_ERROR_INITIAL = 0,
10419371c9d4SSatish Balay   PETSC_ERROR_REPEAT  = 1,
10429371c9d4SSatish Balay   PETSC_ERROR_IN_CXX  = 2
10439371c9d4SSatish Balay } PetscErrorType;
10444b209cf6SBarry Smith 
1045eb9e708aSLisandro Dalcin #if defined(__clang_analyzer__)
1046eb9e708aSLisandro Dalcin __attribute__((analyzer_noreturn))
1047eb9e708aSLisandro Dalcin #endif
10489371c9d4SSatish Balay PETSC_EXTERN PetscErrorCode
10499371c9d4SSatish Balay PetscError(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, ...) PETSC_ATTRIBUTE_COLD PETSC_ATTRIBUTE_FORMAT(7, 8);
1050eb9e708aSLisandro Dalcin 
1051014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscErrorPrintfInitialize(void);
1052014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscErrorMessage(int, const char *[], char **);
1053d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscTraceBackErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1054d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscIgnoreErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1055d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscEmacsClientErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1056d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscMPIAbortErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1057d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscAbortErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1058d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscAttachDebuggerErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1059d8e4614bSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode PetscReturnErrorHandler(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *) PETSC_ATTRIBUTE_COLD;
1060efca3c55SSatish Balay PETSC_EXTERN PetscErrorCode PetscPushErrorHandler(PetscErrorCode (*handler)(MPI_Comm, int, const char *, const char *, PetscErrorCode, PetscErrorType, const char *, void *), void *);
1061014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscPopErrorHandler(void);
10628d359177SBarry Smith PETSC_EXTERN PetscErrorCode PetscSignalHandlerDefault(int, void *);
1063014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscPushSignalHandler(PetscErrorCode (*)(int, void *), void *);
1064014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscPopSignalHandler(void);
106528559dc8SJed Brown PETSC_EXTERN PetscErrorCode PetscCheckPointerSetIntensity(PetscInt);
1066c2a741eeSJunchao Zhang PETSC_EXTERN void           PetscSignalSegvCheckPointerOrMpi(void);
1067d71ae5a4SJacob Faibussowitsch PETSC_DEPRECATED_FUNCTION("Use PetscSignalSegvCheckPointerOrMpi() (since version 3.13)") static inline void PetscSignalSegvCheckPointer(void)
1068d71ae5a4SJacob Faibussowitsch {
10699371c9d4SSatish Balay   PetscSignalSegvCheckPointerOrMpi();
10709371c9d4SSatish Balay }
1071329f5518SBarry Smith 
1072639ff905SBarry Smith /*MC
1073639ff905SBarry Smith     PetscErrorPrintf - Prints error messages.
1074639ff905SBarry Smith 
1075cf53795eSBarry Smith     Not Collective; No Fortran Support
1076cf53795eSBarry Smith 
1077639ff905SBarry Smith    Synopsis:
1078aaa7dc30SBarry Smith     #include <petscsys.h>
1079639ff905SBarry Smith      PetscErrorCode (*PetscErrorPrintf)(const char format[],...);
1080639ff905SBarry Smith 
1081f899ff85SJose E. Roman     Input Parameter:
1082cd05f99aSJacob Faibussowitsch .   format - the usual `printf()` format string
1083639ff905SBarry Smith 
1084639ff905SBarry Smith    Options Database Keys:
10851957e957SBarry Smith +    -error_output_stdout - cause error messages to be printed to stdout instead of the (default) stderr
1086e1bc860dSBarry Smith -    -error_output_none - to turn off all printing of error messages (does not change the way the error is handled.)
1087639ff905SBarry Smith 
1088cf53795eSBarry Smith    Level: developer
1089cf53795eSBarry Smith 
109095452b02SPatrick Sanan    Notes:
109195452b02SPatrick Sanan     Use
1092639ff905SBarry Smith $     PetscErrorPrintf = PetscErrorPrintfNone; to turn off all printing of error messages (does not change the way the
1093639ff905SBarry Smith $                        error is handled.) and
10941957e957SBarry Smith $     PetscErrorPrintf = PetscErrorPrintfDefault; to turn it back on or you can use your own function
1095639ff905SBarry Smith 
1096639ff905SBarry Smith           Use
109787497f52SBarry Smith      `PETSC_STDERR` = FILE* obtained from a file open etc. to have stderr printed to the file.
109887497f52SBarry Smith      `PETSC_STDOUT` = FILE* obtained from a file open etc. to have stdout printed to the file.
1099639ff905SBarry Smith 
1100639ff905SBarry Smith           Use
110187497f52SBarry Smith       `PetscPushErrorHandler()` to provide your own error handler that determines what kind of messages to print
1102639ff905SBarry Smith 
1103db781477SPatrick Sanan .seealso: `PetscFPrintf()`, `PetscSynchronizedPrintf()`, `PetscHelpPrintf()`, `PetscPrintf()`, `PetscPushErrorHandler()`, `PetscVFPrintf()`, `PetscHelpPrintf()`
1104639ff905SBarry Smith M*/
11053ca90d2dSJacob Faibussowitsch PETSC_EXTERN PetscErrorCode (*PetscErrorPrintf)(const char[], ...) PETSC_ATTRIBUTE_FORMAT(1, 2);
1106639ff905SBarry Smith 
1107cf0818bdSBarry Smith /*E
1108cf0818bdSBarry Smith      PetscFPTrap - types of floating point exceptions that may be trapped
1109cf0818bdSBarry Smith 
111087497f52SBarry Smith      Currently only `PETSC_FP_TRAP_OFF` and `PETSC_FP_TRAP_ON` are handled. All others are treated as `PETSC_FP_TRAP_ON`.
1111cf0818bdSBarry Smith 
1112cf0818bdSBarry Smith      Level: intermediate
1113cf0818bdSBarry Smith 
1114cf0818bdSBarry Smith .seealso: `PetscSetFPTrap()`, `PetscPushFPTrap()`
1115cf0818bdSBarry Smith  E*/
11169371c9d4SSatish Balay typedef enum {
11179371c9d4SSatish Balay   PETSC_FP_TRAP_OFF      = 0,
11189371c9d4SSatish Balay   PETSC_FP_TRAP_INDIV    = 1,
11199371c9d4SSatish Balay   PETSC_FP_TRAP_FLTOPERR = 2,
11209371c9d4SSatish Balay   PETSC_FP_TRAP_FLTOVF   = 4,
11219371c9d4SSatish Balay   PETSC_FP_TRAP_FLTUND   = 8,
11229371c9d4SSatish Balay   PETSC_FP_TRAP_FLTDIV   = 16,
11239371c9d4SSatish Balay   PETSC_FP_TRAP_FLTINEX  = 32
11249371c9d4SSatish Balay } PetscFPTrap;
1125bd2b07b1SBarry Smith #define PETSC_FP_TRAP_ON (PetscFPTrap)(PETSC_FP_TRAP_INDIV | PETSC_FP_TRAP_FLTOPERR | PETSC_FP_TRAP_FLTOVF | PETSC_FP_TRAP_FLTDIV | PETSC_FP_TRAP_FLTINEX)
1126014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscSetFPTrap(PetscFPTrap);
1127014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscFPTrapPush(PetscFPTrap);
1128014dd563SJed Brown PETSC_EXTERN PetscErrorCode PetscFPTrapPop(void);
1129aba4c478SBarry Smith PETSC_EXTERN PetscErrorCode PetscDetermineInitialFPTrap(void);
113054a8ef01SBarry Smith 
11313a40ed3dSBarry Smith /*
11323a40ed3dSBarry Smith       Allows the code to build a stack frame as it runs
11333a40ed3dSBarry Smith */
11343a40ed3dSBarry Smith 
113599cd645aSJed Brown #define PETSCSTACKSIZE 64
11363a40ed3dSBarry Smith typedef struct {
11370e33f6ddSBarry Smith   const char *function[PETSCSTACKSIZE];
11380e33f6ddSBarry Smith   const char *file[PETSCSTACKSIZE];
1139184914b5SBarry Smith   int         line[PETSCSTACKSIZE];
1140362febeeSStefano Zampini   int         petscroutine[PETSCSTACKSIZE]; /* 0 external called from petsc, 1 petsc functions, 2 petsc user functions */
1141184914b5SBarry Smith   int         currentsize;
1142a2f94806SJed Brown   int         hotdepth;
11434be741a6SBarry Smith   PetscBool   check; /* option to check for correct Push/Pop semantics, true for default petscstack but not other stacks */
11443a40ed3dSBarry Smith } PetscStack;
1145dfb7d7afSStefano Zampini #if defined(PETSC_USE_DEBUG) && !defined(PETSC_HAVE_THREADSAFETY)
114627104ee2SJacob Faibussowitsch PETSC_EXTERN PetscStack petscstack;
114727104ee2SJacob Faibussowitsch #endif
11483a40ed3dSBarry Smith 
11495d12eec7SSatish Balay #if defined(PETSC_SERIALIZE_FUNCTIONS)
11505d12eec7SSatish Balay   #include <petsc/private/petscfptimpl.h>
11515d12eec7SSatish Balay   /*
11525d12eec7SSatish Balay    Registers the current function into the global function pointer to function name table
11535d12eec7SSatish Balay 
11545d12eec7SSatish Balay    Have to fix this to handle errors but cannot return error since used in PETSC_VIEWER_DRAW_() etc
11555d12eec7SSatish Balay */
11569371c9d4SSatish Balay   #define PetscRegister__FUNCT__() \
11579371c9d4SSatish Balay     do { \
11585d12eec7SSatish Balay       static PetscBool __chked = PETSC_FALSE; \
11595d12eec7SSatish Balay       if (!__chked) { \
11609371c9d4SSatish Balay         void *ptr; \
11619371c9d4SSatish Balay         PetscDLSym(NULL, PETSC_FUNCTION_NAME, &ptr); \
11625d12eec7SSatish Balay         __chked = PETSC_TRUE; \
11639371c9d4SSatish Balay       } \
11649371c9d4SSatish Balay     } while (0)
11655d12eec7SSatish Balay #else
11665d12eec7SSatish Balay   #define PetscRegister__FUNCT__()
11675d12eec7SSatish Balay #endif
11685d12eec7SSatish Balay 
11696d210af2SJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
11706d210af2SJacob Faibussowitsch   #define PetscStackPushNoCheck(funct, petsc_routine, hot)
117137154d10SBarry Smith   #define PetscStackUpdateLine
1172792fecdfSBarry Smith   #define PetscStackPushExternal(funct)
11736d210af2SJacob Faibussowitsch   #define PetscStackPopNoCheck
11746d210af2SJacob Faibussowitsch   #define PetscStackClearTop
11756d210af2SJacob Faibussowitsch   #define PetscFunctionBegin
11766d210af2SJacob Faibussowitsch   #define PetscFunctionBeginUser
11776d210af2SJacob Faibussowitsch   #define PetscFunctionBeginHot
11780a57284eSJacob Faibussowitsch   #define PetscFunctionReturn(...)  return __VA_ARGS__
11796d210af2SJacob Faibussowitsch   #define PetscFunctionReturnVoid() return
11806d210af2SJacob Faibussowitsch   #define PetscStackPop
11816d210af2SJacob Faibussowitsch   #define PetscStackPush(f)
1182dfb7d7afSStefano Zampini #elif defined(PETSC_USE_DEBUG) && !defined(PETSC_HAVE_THREADSAFETY)
1183660278c0SBarry Smith 
11849371c9d4SSatish Balay   #define PetscStackPush_Private(stack__, file__, func__, line__, petsc_routine__, hot__) \
11859371c9d4SSatish Balay     do { \
11865a96b57dSJacob Faibussowitsch       if (stack__.currentsize < PETSCSTACKSIZE) { \
11875a96b57dSJacob Faibussowitsch         stack__.function[stack__.currentsize] = func__; \
1188ef1023bdSBarry Smith         if (petsc_routine__) { \
1189ef1023bdSBarry Smith           stack__.file[stack__.currentsize] = file__; \
11905a96b57dSJacob Faibussowitsch           stack__.line[stack__.currentsize] = line__; \
1191ef1023bdSBarry Smith         } else { \
1192648bc8c4SBarry Smith           stack__.file[stack__.currentsize] = PETSC_NULLPTR; \
1193ef1023bdSBarry Smith           stack__.line[stack__.currentsize] = 0; \
1194ef1023bdSBarry Smith         } \
11955a96b57dSJacob Faibussowitsch         stack__.petscroutine[stack__.currentsize] = petsc_routine__; \
11965a96b57dSJacob Faibussowitsch       } \
11975a96b57dSJacob Faibussowitsch       ++stack__.currentsize; \
11985a96b57dSJacob Faibussowitsch       stack__.hotdepth += (hot__ || stack__.hotdepth); \
11995a96b57dSJacob Faibussowitsch     } while (0)
12005a96b57dSJacob Faibussowitsch 
12014be741a6SBarry Smith   /* uses PetscCheckAbort() because may be used in a function that does not return an error code */
12029371c9d4SSatish Balay   #define PetscStackPop_Private(stack__, func__) \
12039371c9d4SSatish Balay     do { \
12044be741a6SBarry Smith       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__); \
12055a96b57dSJacob Faibussowitsch       if (--stack__.currentsize < PETSCSTACKSIZE) { \
12069371c9d4SSatish Balay         PetscCheckAbort(!stack__.check || stack__.petscroutine[stack__.currentsize] != 1 || stack__.function[stack__.currentsize] == (const char *)(func__), PETSC_COMM_SELF, PETSC_ERR_PLIB, "Invalid stack: push from %s %s:%d. Pop from %s %s:%d.\n", \
12079371c9d4SSatish Balay                         stack__.function[stack__.currentsize], stack__.file[stack__.currentsize], stack__.line[stack__.currentsize], func__, __FILE__, __LINE__); \
12085a96b57dSJacob Faibussowitsch         stack__.function[stack__.currentsize]     = PETSC_NULLPTR; \
12095a96b57dSJacob Faibussowitsch         stack__.file[stack__.currentsize]         = PETSC_NULLPTR; \
12105a96b57dSJacob Faibussowitsch         stack__.line[stack__.currentsize]         = 0; \
12115a96b57dSJacob Faibussowitsch         stack__.petscroutine[stack__.currentsize] = 0; \
12125a96b57dSJacob Faibussowitsch       } \
12135a96b57dSJacob Faibussowitsch       stack__.hotdepth = PetscMax(stack__.hotdepth - 1, 0); \
12145a96b57dSJacob Faibussowitsch     } while (0)
12155a96b57dSJacob Faibussowitsch 
1216586f9135SBarry Smith   /*MC
1217586f9135SBarry Smith    PetscStackPushNoCheck - Pushes a new function name and line number onto the PETSc default stack that tracks where the running program is
1218586f9135SBarry Smith    currently in the source code.
1219586f9135SBarry Smith 
1220586f9135SBarry Smith    Not Collective
1221586f9135SBarry Smith 
1222586f9135SBarry Smith    Synopsis:
1223586f9135SBarry Smith    #include <petscsys.h>
1224586f9135SBarry Smith    void PetscStackPushNoCheck(char *funct,int petsc_routine,PetscBool hot);
1225586f9135SBarry Smith 
1226586f9135SBarry Smith    Input Parameters:
1227586f9135SBarry Smith +  funct - the function name
1228586f9135SBarry Smith .  petsc_routine - 2 user function, 1 PETSc function, 0 some other function
1229586f9135SBarry Smith -  hot - indicates that the function may be called often so expensive error checking should be turned off inside the function
1230586f9135SBarry Smith 
1231586f9135SBarry Smith    Level: developer
1232586f9135SBarry Smith 
1233586f9135SBarry Smith    Notes:
1234586f9135SBarry Smith    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
123587497f52SBarry Smith    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
1236586f9135SBarry Smith    help debug the problem.
1237586f9135SBarry Smith 
1238ef1023bdSBarry Smith    This version does not check the memory corruption (an expensive operation), use `PetscStackPush()` to check the memory.
1239ef1023bdSBarry Smith 
1240792fecdfSBarry Smith    Use `PetscStackPushExternal()` for a function call that is about to be made to a non-PETSc or user function (such as BLAS etc).
1241ef1023bdSBarry Smith 
1242586f9135SBarry Smith    The default stack is a global variable called `petscstack`.
1243586f9135SBarry Smith 
1244586f9135SBarry Smith .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`,
1245ef1023bdSBarry Smith           `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPush()`, `PetscStackPop`,
1246792fecdfSBarry Smith           `PetscStackPushExternal()`
1247586f9135SBarry Smith M*/
12489371c9d4SSatish Balay   #define PetscStackPushNoCheck(funct, petsc_routine, hot) \
12499371c9d4SSatish Balay     do { \
1250e04113cfSBarry Smith       PetscStackSAWsTakeAccess(); \
12515a96b57dSJacob Faibussowitsch       PetscStackPush_Private(petscstack, __FILE__, funct, __LINE__, petsc_routine, hot); \
1252e04113cfSBarry Smith       PetscStackSAWsGrantAccess(); \
1253441dd030SJed Brown     } while (0)
1254441dd030SJed Brown 
1255586f9135SBarry Smith   /*MC
125687497f52SBarry Smith    PetscStackUpdateLine - in a function that has a `PetscFunctionBegin` or `PetscFunctionBeginUser` updates the stack line number to the
125737154d10SBarry Smith    current line number.
125837154d10SBarry Smith 
125937154d10SBarry Smith    Not Collective
126037154d10SBarry Smith 
126137154d10SBarry Smith    Synopsis:
126237154d10SBarry Smith    #include <petscsys.h>
126337154d10SBarry Smith    void PetscStackUpdateLine
126437154d10SBarry Smith 
126537154d10SBarry Smith    Level: developer
126637154d10SBarry Smith 
126737154d10SBarry Smith    Notes:
126887497f52SBarry Smith    Using `PetscCall()` and friends automatically handles this process
126987497f52SBarry Smith 
127037154d10SBarry Smith    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
127137154d10SBarry Smith    occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to
127237154d10SBarry Smith    help debug the problem.
127337154d10SBarry Smith 
127437154d10SBarry Smith    The default stack is a global variable called petscstack.
127537154d10SBarry Smith 
127637154d10SBarry Smith    This is used by `PetscCall()` and is otherwise not like to be needed
127737154d10SBarry Smith 
127837154d10SBarry Smith .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop`, `PetscCall()`
127937154d10SBarry Smith M*/
128037154d10SBarry Smith   #define PetscStackUpdateLine \
12819371c9d4SSatish Balay     if (petscstack.currentsize > 0 && petscstack.function[petscstack.currentsize - 1] == PETSC_FUNCTION_NAME) { petscstack.line[petscstack.currentsize - 1] = __LINE__; }
128237154d10SBarry Smith 
128337154d10SBarry Smith   /*MC
1284792fecdfSBarry Smith    PetscStackPushExternal - Pushes a new function name onto the PETSc default stack that tracks where the running program is
1285ef1023bdSBarry Smith    currently in the source code. Does not include the filename or line number since this is called by the calling routine
1286ef1023bdSBarry Smith    for non-PETSc or user functions.
1287ef1023bdSBarry Smith 
1288ef1023bdSBarry Smith    Not Collective
1289ef1023bdSBarry Smith 
1290ef1023bdSBarry Smith    Synopsis:
1291ef1023bdSBarry Smith    #include <petscsys.h>
1292792fecdfSBarry Smith    void PetscStackPushExternal(char *funct);
1293ef1023bdSBarry Smith 
1294ef1023bdSBarry Smith    Input Parameters:
1295ef1023bdSBarry Smith .  funct - the function name
1296ef1023bdSBarry Smith 
1297ef1023bdSBarry Smith    Level: developer
1298ef1023bdSBarry Smith 
1299ef1023bdSBarry Smith    Notes:
130087497f52SBarry Smith    Using `PetscCallExternal()` and friends automatically handles this process
130187497f52SBarry Smith 
1302ef1023bdSBarry Smith    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
1303ef1023bdSBarry Smith    occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to
1304ef1023bdSBarry Smith    help debug the problem.
1305ef1023bdSBarry Smith 
1306ef1023bdSBarry Smith    The default stack is a global variable called `petscstack`.
1307ef1023bdSBarry Smith 
1308ef1023bdSBarry Smith    This is to be used when calling an external package function such as a BLAS function.
1309ef1023bdSBarry Smith 
1310ef1023bdSBarry Smith    This also updates the stack line number for the current stack function.
1311ef1023bdSBarry Smith 
1312ef1023bdSBarry Smith .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`,
1313ef1023bdSBarry Smith           `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`, `PetscStackPop`
1314ef1023bdSBarry Smith M*/
13159371c9d4SSatish Balay   #define PetscStackPushExternal(funct) \
13169371c9d4SSatish Balay     do { \
13179371c9d4SSatish Balay       PetscStackUpdateLine; \
13189371c9d4SSatish Balay       PetscStackPushNoCheck(funct, 0, PETSC_TRUE); \
13199371c9d4SSatish Balay     } while (0);
1320ef1023bdSBarry Smith 
1321ef1023bdSBarry Smith   /*MC
1322586f9135SBarry Smith    PetscStackPopNoCheck - Pops a function name from the PETSc default stack that tracks where the running program is
1323586f9135SBarry Smith    currently in the source code.
1324586f9135SBarry Smith 
1325586f9135SBarry Smith    Not Collective
1326586f9135SBarry Smith 
1327586f9135SBarry Smith    Synopsis:
1328586f9135SBarry Smith    #include <petscsys.h>
1329586f9135SBarry Smith    void PetscStackPopNoCheck(char *funct);
1330586f9135SBarry Smith 
1331586f9135SBarry Smith    Input Parameter:
1332586f9135SBarry Smith .   funct - the function name
1333586f9135SBarry Smith 
1334586f9135SBarry Smith    Level: developer
1335586f9135SBarry Smith 
1336586f9135SBarry Smith    Notes:
133787497f52SBarry Smith    Using `PetscCall()`, `PetscCallExternal()`, `PetscCallBack()` and friends negates the need to call this
133887497f52SBarry Smith 
1339586f9135SBarry Smith    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
1340586f9135SBarry Smith    occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to
1341586f9135SBarry Smith    help debug the problem.
1342586f9135SBarry Smith 
1343586f9135SBarry Smith    The default stack is a global variable called petscstack.
1344586f9135SBarry Smith 
1345586f9135SBarry Smith    Developer Note:
1346586f9135SBarry Smith    `PetscStackPopNoCheck()` takes a function argument while  `PetscStackPop` does not, this difference is likely just historical.
1347586f9135SBarry Smith 
1348586f9135SBarry Smith .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPop`
1349586f9135SBarry Smith M*/
13509371c9d4SSatish Balay   #define PetscStackPopNoCheck(funct) \
13519371c9d4SSatish Balay     do { \
1352362febeeSStefano Zampini       PetscStackSAWsTakeAccess(); \
13535a96b57dSJacob Faibussowitsch       PetscStackPop_Private(petscstack, funct); \
1354362febeeSStefano Zampini       PetscStackSAWsGrantAccess(); \
1355362febeeSStefano Zampini     } while (0)
1356362febeeSStefano Zampini 
13579371c9d4SSatish Balay   #define PetscStackClearTop \
13589371c9d4SSatish Balay     do { \
1359e04113cfSBarry Smith       PetscStackSAWsTakeAccess(); \
13609371c9d4SSatish Balay       if (petscstack.currentsize > 0 && --petscstack.currentsize < PETSCSTACKSIZE) { \
136127104ee2SJacob Faibussowitsch         petscstack.function[petscstack.currentsize]     = PETSC_NULLPTR; \
136227104ee2SJacob Faibussowitsch         petscstack.file[petscstack.currentsize]         = PETSC_NULLPTR; \
136327104ee2SJacob Faibussowitsch         petscstack.line[petscstack.currentsize]         = 0; \
136427104ee2SJacob Faibussowitsch         petscstack.petscroutine[petscstack.currentsize] = 0; \
1365441dd030SJed Brown       } \
136627104ee2SJacob Faibussowitsch       petscstack.hotdepth = PetscMax(petscstack.hotdepth - 1, 0); \
1367e04113cfSBarry Smith       PetscStackSAWsGrantAccess(); \
1368441dd030SJed Brown     } while (0)
1369441dd030SJed Brown 
137030de9b25SBarry Smith   /*MC
13711957e957SBarry Smith    PetscFunctionBegin - First executable line of each PETSc function,  used for error handling. Final
137287497f52SBarry Smith       line of PETSc functions should be `PetscFunctionReturn`(0);
137330de9b25SBarry Smith 
137430de9b25SBarry Smith    Synopsis:
1375aaa7dc30SBarry Smith    #include <petscsys.h>
137630de9b25SBarry Smith    void PetscFunctionBegin;
137730de9b25SBarry Smith 
1378eca87e8dSBarry Smith    Not Collective
1379eca87e8dSBarry Smith 
138030de9b25SBarry Smith    Usage:
138130de9b25SBarry Smith .vb
138230de9b25SBarry Smith      int something;
138330de9b25SBarry Smith 
138430de9b25SBarry Smith      PetscFunctionBegin;
138530de9b25SBarry Smith .ve
138630de9b25SBarry Smith 
138730de9b25SBarry Smith    Notes:
138887497f52SBarry Smith      Use `PetscFunctionBeginUser` for application codes.
13891957e957SBarry Smith 
139030de9b25SBarry Smith      Not available in Fortran
139130de9b25SBarry Smith 
139230de9b25SBarry Smith    Level: developer
139330de9b25SBarry Smith 
1394586f9135SBarry Smith .seealso: `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`
139530de9b25SBarry Smith 
139630de9b25SBarry Smith M*/
13979371c9d4SSatish Balay   #define PetscFunctionBegin \
13989371c9d4SSatish Balay     do { \
1399362febeeSStefano Zampini       PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 1, PETSC_FALSE); \
1400a2f94806SJed Brown       PetscRegister__FUNCT__(); \
1401a2f94806SJed Brown     } while (0)
1402a2f94806SJed Brown 
1403a2f94806SJed Brown   /*MC
140487497f52SBarry Smith    PetscFunctionBeginHot - Substitute for `PetscFunctionBegin` to be used in functions that are called in
1405a2f94806SJed Brown    performance-critical circumstances.  Use of this function allows for lighter profiling by default.
1406a2f94806SJed Brown 
1407a2f94806SJed Brown    Synopsis:
1408aaa7dc30SBarry Smith    #include <petscsys.h>
1409a2f94806SJed Brown    void PetscFunctionBeginHot;
1410a2f94806SJed Brown 
1411a2f94806SJed Brown    Not Collective
1412a2f94806SJed Brown 
1413a2f94806SJed Brown    Usage:
1414a2f94806SJed Brown .vb
1415a2f94806SJed Brown      int something;
1416a2f94806SJed Brown 
1417a2f94806SJed Brown      PetscFunctionBeginHot;
1418a2f94806SJed Brown .ve
1419a2f94806SJed Brown 
1420a2f94806SJed Brown    Notes:
1421a2f94806SJed Brown      Not available in Fortran
1422a2f94806SJed Brown 
1423a2f94806SJed Brown    Level: developer
1424a2f94806SJed Brown 
1425586f9135SBarry Smith .seealso: `PetscFunctionBegin`, `PetscFunctionReturn()`, `PetscStackPushNoCheck()`
1426a2f94806SJed Brown 
1427a2f94806SJed Brown M*/
14289371c9d4SSatish Balay   #define PetscFunctionBeginHot \
14299371c9d4SSatish Balay     do { \
1430362febeeSStefano Zampini       PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 1, PETSC_TRUE); \
14312d53ad75SBarry Smith       PetscRegister__FUNCT__(); \
143253c77d0aSJed Brown     } while (0)
143353c77d0aSJed Brown 
1434a8d2bbe5SBarry Smith   /*MC
1435530d85c1SBarry Smith    PetscFunctionBeginUser - First executable line of user provided routines
1436a8d2bbe5SBarry Smith 
1437a8d2bbe5SBarry Smith    Synopsis:
1438aaa7dc30SBarry Smith    #include <petscsys.h>
1439a8d2bbe5SBarry Smith    void PetscFunctionBeginUser;
1440a8d2bbe5SBarry Smith 
1441a8d2bbe5SBarry Smith    Not Collective
1442a8d2bbe5SBarry Smith 
1443a8d2bbe5SBarry Smith    Usage:
1444a8d2bbe5SBarry Smith .vb
1445a8d2bbe5SBarry Smith      int something;
1446a8d2bbe5SBarry Smith 
1447ac285190SBarry Smith      PetscFunctionBeginUser;
1448a8d2bbe5SBarry Smith .ve
1449a8d2bbe5SBarry Smith 
1450a8d2bbe5SBarry Smith    Notes:
1451530d85c1SBarry Smith       Functions that incorporate this must call `PetscFunctionReturn()` instead of return except for main().
1452530d85c1SBarry Smith 
1453530d85c1SBarry Smith       May be used before `PetscInitialize()`
14541957e957SBarry Smith 
1455a8d2bbe5SBarry Smith       Not available in Fortran
1456a8d2bbe5SBarry Smith 
1457530d85c1SBarry Smith       This is identical to `PetscFunctionBegin` except it labels the routine as a user
1458ac285190SBarry Smith       routine instead of as a PETSc library routine.
1459ac285190SBarry Smith 
1460a2f94806SJed Brown    Level: intermediate
1461a8d2bbe5SBarry Smith 
1462586f9135SBarry Smith .seealso: `PetscFunctionReturn()`, `PetscFunctionBegin`, `PetscFunctionBeginHot`, `PetscStackPushNoCheck()`
1463a8d2bbe5SBarry Smith 
1464a8d2bbe5SBarry Smith M*/
14659371c9d4SSatish Balay   #define PetscFunctionBeginUser \
14669371c9d4SSatish Balay     do { \
1467362febeeSStefano Zampini       PetscStackPushNoCheck(PETSC_FUNCTION_NAME, 2, PETSC_FALSE); \
1468a8d2bbe5SBarry Smith       PetscRegister__FUNCT__(); \
1469a8d2bbe5SBarry Smith     } while (0)
1470a8d2bbe5SBarry Smith 
1471586f9135SBarry Smith   /*MC
1472586f9135SBarry Smith    PetscStackPush - Pushes a new function name and line number onto the PETSc default stack that tracks where the running program is
1473586f9135SBarry Smith    currently in the source code and verifies the memory is not corrupted.
1474586f9135SBarry Smith 
1475586f9135SBarry Smith    Not Collective
1476586f9135SBarry Smith 
1477586f9135SBarry Smith    Synopsis:
1478586f9135SBarry Smith    #include <petscsys.h>
1479586f9135SBarry Smith    void PetscStackPush(char *funct)
1480586f9135SBarry Smith 
1481586f9135SBarry Smith    Input Parameter:
1482586f9135SBarry Smith .  funct - the function name
1483586f9135SBarry Smith 
1484586f9135SBarry Smith    Level: developer
1485586f9135SBarry Smith 
1486586f9135SBarry Smith    Notes:
1487586f9135SBarry Smith    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
1488586f9135SBarry Smith    occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to
1489586f9135SBarry Smith    help debug the problem.
1490586f9135SBarry Smith 
1491586f9135SBarry Smith    The default stack is a global variable called petscstack.
1492586f9135SBarry Smith 
1493586f9135SBarry Smith .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPopNoCheck()`, `PetscCall()`, `PetscFunctionBegin()`,
1494586f9135SBarry Smith           `PetscFunctionReturn()`, `PetscFunctionBeginHot()`, `PetscFunctionBeginUser()`, `PetscStackPushNoCheck()`, `PetscStackPop`
1495586f9135SBarry Smith M*/
14969371c9d4SSatish Balay   #define PetscStackPush(n) \
14979371c9d4SSatish Balay     do { \
1498362febeeSStefano Zampini       PetscStackPushNoCheck(n, 0, PETSC_FALSE); \
149915681b3cSBarry Smith       CHKMEMQ; \
150015681b3cSBarry Smith     } while (0)
15013a40ed3dSBarry Smith 
1502586f9135SBarry Smith   /*MC
1503586f9135SBarry Smith    PetscStackPop - Pops a function name from the PETSc default stack that tracks where the running program is
1504586f9135SBarry Smith    currently in the source code and verifies the memory is not corrupted.
1505586f9135SBarry Smith 
1506586f9135SBarry Smith    Not Collective
1507586f9135SBarry Smith 
1508586f9135SBarry Smith    Synopsis:
1509586f9135SBarry Smith    #include <petscsys.h>
1510586f9135SBarry Smith    void PetscStackPop
1511586f9135SBarry Smith 
1512586f9135SBarry Smith    Level: developer
1513586f9135SBarry Smith 
1514586f9135SBarry Smith    Notes:
1515586f9135SBarry Smith    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
1516586f9135SBarry Smith    occurred, for example, when a signal is received. It is recommended to use the debugger if extensive information is needed to
1517586f9135SBarry Smith    help debug the problem.
1518586f9135SBarry Smith 
1519586f9135SBarry Smith    The default stack is a global variable called petscstack.
1520586f9135SBarry Smith 
1521586f9135SBarry Smith .seealso: `PetscAttachDebugger()`, `PetscStackCopy()`, `PetscStackView()`, `PetscStackPushNoCheck()`, `PetscStackPopNoCheck()`, `PetscStackPush()`
1522586f9135SBarry Smith M*/
15239371c9d4SSatish Balay   #define PetscStackPop \
15249371c9d4SSatish Balay     do { \
1525441dd030SJed Brown       CHKMEMQ; \
1526362febeeSStefano Zampini       PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \
152715681b3cSBarry Smith     } while (0)
1528d64ed03dSBarry Smith 
152930de9b25SBarry Smith   /*MC
15300a57284eSJacob Faibussowitsch    PetscFunctionReturn - Last executable line of each PETSc function used for error
15310a57284eSJacob Faibussowitsch    handling. Replaces `return()`.
153230de9b25SBarry Smith 
153330de9b25SBarry Smith    Synopsis:
15340a57284eSJacob Faibussowitsch    #include <petscerror.h>
15350a57284eSJacob Faibussowitsch    void PetscFunctionReturn(...)
153630de9b25SBarry Smith 
1537eca87e8dSBarry Smith    Not Collective
1538eca87e8dSBarry Smith 
15395687f061SJacob Faibussowitsch    Level: beginner
15405687f061SJacob Faibussowitsch 
15410a57284eSJacob Faibussowitsch    Notes:
15420a57284eSJacob Faibussowitsch    This routine is a macro, so while it does not "return" anything itself, it does return from
15430a57284eSJacob Faibussowitsch    the function in the literal sense.
15440a57284eSJacob Faibussowitsch 
15450a57284eSJacob Faibussowitsch    Usually the return value is the integer literal `0` (for example in any function returning
15460a57284eSJacob Faibussowitsch    `PetscErrorCode`), however it is possible to return any arbitrary type. The arguments of
15470a57284eSJacob Faibussowitsch    this macro are placed before the `return` statement as-is.
15480a57284eSJacob Faibussowitsch 
15490a57284eSJacob Faibussowitsch    Any routine which returns via `PetscFunctionReturn()` must begin with a corresponding
15500a57284eSJacob Faibussowitsch    `PetscFunctionBegin`.
15510a57284eSJacob Faibussowitsch 
15520a57284eSJacob Faibussowitsch    For routines which return `void` use `PetscFunctionReturnVoid()` instead.
15530a57284eSJacob Faibussowitsch 
15540a57284eSJacob Faibussowitsch    Example Usage:
155530de9b25SBarry Smith .vb
15560a57284eSJacob Faibussowitsch    PetscErrorCode foo(int *x)
15570a57284eSJacob Faibussowitsch    {
15580a57284eSJacob Faibussowitsch      PetscFunctionBegin; // don't forget the begin!
15590a57284eSJacob Faibussowitsch      *x = 10;
156030de9b25SBarry Smith      PetscFunctionReturn(0);
156130de9b25SBarry Smith    }
156230de9b25SBarry Smith .ve
156330de9b25SBarry Smith 
15640a57284eSJacob Faibussowitsch    May return any arbitrary type\:
15650a57284eSJacob Faibussowitsch .vb
15660a57284eSJacob Faibussowitsch   struct Foo
15670a57284eSJacob Faibussowitsch   {
15680a57284eSJacob Faibussowitsch     int x;
15690a57284eSJacob Faibussowitsch   };
15700a57284eSJacob Faibussowitsch 
15710a57284eSJacob Faibussowitsch   struct Foo make_foo(int value)
15720a57284eSJacob Faibussowitsch   {
15730a57284eSJacob Faibussowitsch     struct Foo f;
15740a57284eSJacob Faibussowitsch 
15750a57284eSJacob Faibussowitsch     PetscFunctionBegin;
15760a57284eSJacob Faibussowitsch     f.x = value;
15770a57284eSJacob Faibussowitsch     PetscFunctionReturn(f);
15780a57284eSJacob Faibussowitsch   }
15790a57284eSJacob Faibussowitsch .ve
15800a57284eSJacob Faibussowitsch 
15815687f061SJacob Faibussowitsch    Fortran Note:
158230de9b25SBarry Smith    Not available in Fortran
158330de9b25SBarry Smith 
15840a57284eSJacob Faibussowitsch .seealso: `PetscFunctionBegin`, `PetscFunctionBeginUser`, `PetscFunctionReturnVoid()`,
15850a57284eSJacob Faibussowitsch `PetscStackPopNoCheck()`
158630de9b25SBarry Smith M*/
15875687f061SJacob Faibussowitsch   #define PetscFunctionReturn(...) \
15889371c9d4SSatish Balay     do { \
1589362febeeSStefano Zampini       PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \
15905687f061SJacob Faibussowitsch       return __VA_ARGS__; \
159127104ee2SJacob Faibussowitsch     } while (0)
1592d64ed03dSBarry Smith 
15930a57284eSJacob Faibussowitsch   /*MC
15940a57284eSJacob Faibussowitsch   PetscFunctionReturnVoid - Like `PetscFunctionReturn()` but returns `void`
15950a57284eSJacob Faibussowitsch 
15960a57284eSJacob Faibussowitsch   Synopsis:
15970a57284eSJacob Faibussowitsch   #include <petscerror.h>
15980a57284eSJacob Faibussowitsch   void PetscFunctionReturnVoid()
15990a57284eSJacob Faibussowitsch 
16000a57284eSJacob Faibussowitsch   Not Collective
16010a57284eSJacob Faibussowitsch 
16025687f061SJacob Faibussowitsch   Level: beginner
16035687f061SJacob Faibussowitsch 
16045687f061SJacob Faibussowitsch   Note:
16050a57284eSJacob Faibussowitsch   Behaves identically to `PetscFunctionReturn()` except that it returns `void`. That is, this
16065687f061SJacob Faibussowitsch   macro culminates with `return`.
16070a57284eSJacob Faibussowitsch 
16080a57284eSJacob Faibussowitsch   Example Usage:
16090a57284eSJacob Faibussowitsch .vb
16100a57284eSJacob Faibussowitsch   void foo()
16110a57284eSJacob Faibussowitsch   {
16120a57284eSJacob Faibussowitsch     PetscFunctionBegin; // must start with PetscFunctionBegin!
16130a57284eSJacob Faibussowitsch     bar();
16140a57284eSJacob Faibussowitsch     baz();
16150a57284eSJacob Faibussowitsch     PetscFunctionReturnVoid();
16160a57284eSJacob Faibussowitsch   }
16170a57284eSJacob Faibussowitsch .ve
16180a57284eSJacob Faibussowitsch 
16190a57284eSJacob Faibussowitsch .seealso: `PetscFunctionReturn()`, `PetscFunctionBegin`, PetscFunctionBeginUser`
16200a57284eSJacob Faibussowitsch M*/
16219371c9d4SSatish Balay   #define PetscFunctionReturnVoid() \
16229371c9d4SSatish Balay     do { \
1623362febeeSStefano Zampini       PetscStackPopNoCheck(PETSC_FUNCTION_NAME); \
162427104ee2SJacob Faibussowitsch       return; \
162527104ee2SJacob Faibussowitsch     } while (0)
162627104ee2SJacob Faibussowitsch #else /* PETSC_USE_DEBUG */
162727104ee2SJacob Faibussowitsch   #define PetscStackPushNoCheck(funct, petsc_routine, hot)
162837154d10SBarry Smith   #define PetscStackUpdateLine
1629792fecdfSBarry Smith   #define PetscStackPushExternal(funct)
163027104ee2SJacob Faibussowitsch   #define PetscStackPopNoCheck
163127104ee2SJacob Faibussowitsch   #define PetscStackClearTop
16323a40ed3dSBarry Smith   #define PetscFunctionBegin
16330bdf7c52SPeter Brune   #define PetscFunctionBeginUser
1634a2f94806SJed Brown   #define PetscFunctionBeginHot
16350a57284eSJacob Faibussowitsch   #define PetscFunctionReturn(...)  return __VA_ARGS__
16365665465eSBarry Smith   #define PetscFunctionReturnVoid() return
1637812af9f3SBarry Smith   #define PetscStackPop             CHKMEMQ
1638812af9f3SBarry Smith   #define PetscStackPush(f)         CHKMEMQ
163927104ee2SJacob Faibussowitsch #endif /* PETSC_USE_DEBUG */
16403a40ed3dSBarry Smith 
16416d210af2SJacob Faibussowitsch #if defined(PETSC_CLANG_STATIC_ANALYZER)
1642e77caa6dSBarry Smith   #define PetscStackCallExternalVoid(name, routine)
1643792fecdfSBarry Smith   #define PetscCallExternal(func, ...)
16446d210af2SJacob Faibussowitsch #else
1645586f9135SBarry Smith   /*MC
1646e77caa6dSBarry Smith     PetscStackCallExternalVoid - Calls an external library routine or user function after pushing the name of the routine on the stack.
1647eb6b5d47SBarry Smith 
1648eb6b5d47SBarry Smith    Input Parameters:
1649eb6b5d47SBarry Smith +   name - string that gives the name of the function being called
1650586f9135SBarry Smith -   routine - actual call to the routine, for example, functionname(a,b)
1651fd3f9acdSBarry Smith 
1652586f9135SBarry Smith    Level: developer
1653eb6b5d47SBarry Smith 
1654586f9135SBarry Smith    Note:
1655792fecdfSBarry Smith    Often one should use `PetscCallExternal()` instead. This routine is intended for external library routines that DO NOT return error codes
1656eb6b5d47SBarry Smith 
1657586f9135SBarry Smith    In debug mode this also checks the memory for corruption at the end of the function call.
1658586f9135SBarry Smith 
1659586f9135SBarry Smith    Certain external packages, such as BLAS/LAPACK may have their own macros for managing the call, error checking, etc.
1660586f9135SBarry Smith 
1661586f9135SBarry Smith    Developer Note:
1662586f9135SBarry Smith    This is so that when a user or external library routine results in a crash or corrupts memory, they get blamed instead of PETSc.
1663586f9135SBarry Smith 
1664792fecdfSBarry Smith .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscCallExternal()`, `PetscCallBLAS()`
1665586f9135SBarry Smith @*/
16669371c9d4SSatish Balay   #define PetscStackCallExternalVoid(name, routine) \
16679371c9d4SSatish Balay     do { \
16689371c9d4SSatish Balay       PetscStackPush(name); \
16699371c9d4SSatish Balay       routine; \
16709371c9d4SSatish Balay       PetscStackPop; \
16719371c9d4SSatish Balay     } while (0)
1672eb6b5d47SBarry Smith 
1673586f9135SBarry Smith   /*MC
1674792fecdfSBarry Smith     PetscCallExternal - Calls an external library routine that returns an error code after pushing the name of the routine on the stack.
1675fd3f9acdSBarry Smith 
1676fd3f9acdSBarry Smith    Input Parameters:
1677fd3f9acdSBarry Smith +   func-  name of the routine
1678586f9135SBarry Smith -   args - arguments to the routine
1679586f9135SBarry Smith 
1680586f9135SBarry Smith    Level: developer
1681fd3f9acdSBarry Smith 
168295452b02SPatrick Sanan    Notes:
1683e77caa6dSBarry Smith    This is intended for external package routines that return error codes. Use `PetscStackCallExternalVoid()` for those that do not.
1684dbf62e16SBarry Smith 
1685586f9135SBarry Smith    In debug mode this also checks the memory for corruption at the end of the function call.
1686fd3f9acdSBarry Smith 
168787497f52SBarry Smith    Assumes the error return code of the function is an integer and that a value of 0 indicates success
168887497f52SBarry Smith 
1689586f9135SBarry Smith    Developer Note:
1690d5b43468SJose E. Roman    This is so that when an external package routine results in a crash or corrupts memory, they get blamed instead of PETSc.
1691586f9135SBarry Smith 
1692e77caa6dSBarry Smith .seealso: `PetscCall()`, `PetscStackPushNoCheck()`, `PetscStackPush()`, `PetscStackCallExternalVoid()`
1693586f9135SBarry Smith M*/
16949371c9d4SSatish Balay   #define PetscCallExternal(func, ...) \
16959371c9d4SSatish Balay     do { \
1696a74df02fSJacob Faibussowitsch       PetscStackPush(PetscStringize(func)); \
1697a74df02fSJacob Faibussowitsch       PetscErrorCode __ierr = func(__VA_ARGS__); \
16981d4906efSStefano Zampini       PetscStackPop; \
169932771afcSJacob Faibussowitsch       PetscCheck(!__ierr, PETSC_COMM_SELF, PETSC_ERR_LIB, "Error in %s(): error code %d", PetscStringize(func), __ierr); \
1700fd3f9acdSBarry Smith     } while (0)
17016d210af2SJacob Faibussowitsch #endif /* PETSC_CLANG_STATIC_ANALYZER */
170206d1fe2cSBarry Smith 
170306d1fe2cSBarry Smith #endif
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