PETSc version 3.17.0
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# PetscEmacsClientErrorHandler

Error handler that uses the emacsclient program to load the file where the error occurred. Then calls the "previous" error handler.

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscEmacsClientErrorHandler(MPI_Comm comm,int line,const char *fun,const char *file,PetscErrorCode n,PetscErrorType p,const char *mess,void *ctx)

Not Collective

### Input Parameters

| comm | - communicator over which error occurred
| line | - the line number of the error (indicated by __LINE__)
| file | - the file in which the error was detected (indicated by __FILE__)
| mess | - an error text string, usually just printed to the screen
| n | - the generic error number
| p | - specific error number
| ctx | - error handler context

### Options Database Key

| -on_error_emacs <machinename> | - will contact machinename to open the Emacs client there

### Notes

You must put (server-start) in your .emacs file for the emacsclient software to work

### Developer Note

Since this is an error handler it cannot call PetscCall(); thus we just return if an error is detected.

### See Also

PetscError(), PetscPushErrorHandler(), PetscPopErrorHandler(), PetscAttachDebuggerErrorHandler(),
PetscAbortErrorHandler(), PetscMPIAbortErrorHandler(), PetscTraceBackErrorHandler(), PetscReturnErrorHandler()

### Level

developer

### Location

src/sys/error/err.c
Index of all Sys routines
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