81 строка
2.4 KiB
C
81 строка
2.4 KiB
C
/*
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* Copyright (c) 2004-2007 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/runtime/params.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/errhandler/errhandler.h"
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Errhandler_free = PMPI_Errhandler_free
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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_Errhandler_free";
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int MPI_Errhandler_free(MPI_Errhandler *errhandler)
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{
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OPAL_CR_NOOP_PROGRESS();
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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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/* Raise an MPI exception if we got NULL or if we got an intrinsic
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*and* the reference count is 1 (meaning that this FREE would
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actually free the underlying intrinsic object). This is ugly
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but necessary -- see below. */
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if (NULL == errhandler ||
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(ompi_errhandler_is_intrinsic(*errhandler) &&
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1 == (*errhandler)->super.obj_reference_count)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
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"MPI_Errhandler_free");
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}
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}
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/* Return the errhandler. According to MPI-2 errata, any errhandler
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obtained by MPI_*_GET_ERRHANDLER or MPI_ERRHANDLER_GET must also
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be freed by MPI_ERRHANDLER_FREE (including intrinsic error
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handlers). For example, this is valid:
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int main() {
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MPI_Errhandler errhdl;
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MPI_Init(NULL, NULL);
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MPI_Comm_get_errhandler(MPI_COMM_WORLD, &errhdl);
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MPI_Errhandler_free(&errhdl);
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MPI_Finalize();
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return 0;
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}
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So decrease the refcount here. */
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OBJ_RELEASE(*errhandler);
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*errhandler = MPI_ERRHANDLER_NULL;
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/* All done */
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return MPI_SUCCESS;
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}
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