f710ef5b2b
functions return an invalid fortran handle (-1) if an invalid C handle is passed in. Just so it's logged somewhere -- it looks like commit 2 of 2 as noted in the r9560 commit message (ok, 3 of 3 if you're really counting), where we have to edit the C interface functions to check for NULL, is going to be far easier than I thought -- many (but not all) of the C interface functions already check for NULL MPI handles (either directly or through helper functions). Woo hoo for foresight... This commit was SVN r9561. The following SVN revision numbers were found above: r9560 --> open-mpi/ompi@e00c6053dc
67 строки
2.2 KiB
C
67 строки
2.2 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 (c) 2006 Cisco Systems, Inc. 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 <stdio.h>
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/mpi/f77/fint_2_int.h"
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#include "ompi/request/request.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Request_c2f = PMPI_Request_c2f
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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_Request_f2c";
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MPI_Fint MPI_Request_c2f(MPI_Request request)
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{
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if ( MPI_PARAM_CHECK ) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (NULL == request) {
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return OMPI_INT_2_FINT(-1);
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}
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}
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/* We only put requests in the f2c table when this function is
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invoked. This is because putting requests in the table
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involves locking and unlocking the table, which would incur a
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performance penalty (in the critical performance path) for C
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applications. In this way, at least only Fortran applications
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are penalized. :-\
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Modifying this one function neatly fixes up all the Fortran
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bindings because they all call MPI_Request_c2f in order to
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transmorgify the C MPI_Request that they got back into a
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fortran integer.
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*/
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if (MPI_UNDEFINED == request->req_f_to_c_index) {
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request->req_f_to_c_index =
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ompi_pointer_array_add(&ompi_request_f_to_c_table, request);
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}
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return OMPI_INT_2_FINT(request->req_f_to_c_index) ;
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}
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