0ebe687ed8
* 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 * Remove lengthy comment from comm_get_errhandler.c which is no longer valid (because of the MPI-2 errata that says that users *do* have to call MPI_ERRHANDLER_FREE).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
64 строки
1.9 KiB
C
64 строки
1.9 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/file/file.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_File_get_errhandler = PMPI_File_get_errhandler
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "ompi/mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_File_get_errhandler";
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int MPI_File_get_errhandler( MPI_File file, MPI_Errhandler *errhandler)
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{
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/* Error checking */
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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/* Note that MPI-2:9.7 (p265 in the ps; 261 in the pdf) explicitly
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says that you are allowed to set the error handler on
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MPI_FILE_NULL */
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if (NULL == file) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_FILE,
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"MPI_File_get_errhandler");
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} else if (NULL == errhandler) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
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"MPI_File_get_errhandler");
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}
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}
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/* Retain the errhandler, corresponding to object refcount
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decrease in errhandler_free.c. */
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OBJ_RETAIN(file->error_handler);
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*errhandler = file->error_handler;
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/* All done */
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return MPI_SUCCESS;
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}
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