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openmpi/ompi/mpi/c/comm_get_errhandler.c
Jeff Squyres 0ebe687ed8 Refs trac:502, #503. This commit as a result of review of r12122.
* Update comments in some MPI_FILE_* functions to reflect that the
   MPI specs have different page numbers in the ps and pdf (woof!).
 * Update comments to say "Retain" where we meant retain (not "return)
 * Add a check in MPI_ERRHANDLER_FREE to raise an MPI exception if the
   user attempts to free an intrinsic errhandler *and* the refcount is
   1 (meaning that it would actually free the intrinsic).  This
   protects erroneous programs from segv'ing.
 * Remove lengthy comment from comm_get_errhandler.c which is no
   longer valid (because of the MPI-2 errata that says that users *do*
   have to call MPI_ERRHANDLER_FREE).

This commit was SVN r12128.

The following SVN revision numbers were found above:
  r12122 --> open-mpi/ompi@407b3cb788

The following Trac tickets were found above:
  Ticket 502 --> https://svn.open-mpi.org/trac/ompi/ticket/502
2006-10-17 00:18:35 +00:00

60 строки
1.7 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Comm_get_errhandler = PMPI_Comm_get_errhandler
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Comm_get_errhandler";
int MPI_Comm_get_errhandler(MPI_Comm comm, MPI_Errhandler *errhandler)
{
/* Error checking */
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (NULL == comm ||
MPI_COMM_NULL == comm) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
FUNC_NAME);
} else if (NULL == errhandler) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
FUNC_NAME);
}
}
/* Retain the errhandler, corresponding to object refcount
decrease in errhandler_free.c. */
OBJ_RETAIN(comm->error_handler);
*errhandler = comm->error_handler;
/* All done */
return MPI_SUCCESS;
}