0b8fc13299
arrays. The MPI 3.0 standard added const to all in buffers in the C bindings. This commit adds the const keyword and in most cases casts const away. We will eventually should go through and update the various interfaces (coll, pml, io, etc) to take the const keyword. The group, comm, win, and datatype interfaces have been updated with const. cmr=v1.7.4:ticket=trac:3785:reviewer=jsquyres This commit was SVN r29266. The following Trac tickets were found above: Ticket 3785 --> https://svn.open-mpi.org/trac/ompi/ticket/3785
102 строки
3.8 KiB
C
102 строки
3.8 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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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) 2004-2008 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) 2010-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* 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/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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#include "ompi/mpi/fortran/base/fint_2_int.h"
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#include "ompi/mpi/fortran/base/constants.h"
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#include "ompi/memchecker.h"
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Status_c2f = PMPI_Status_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_Status_c2f";
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int MPI_Status_c2f(const MPI_Status *c_status, MPI_Fint *f_status)
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{
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const int *c_ints;
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int i;
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MEMCHECKER(
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if(c_status != MPI_STATUSES_IGNORE) {
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/*
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* Before checking the complete status, we need to reset the definedness
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* of the MPI_ERROR-field (single-completion calls wait/test).
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*/
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opal_memchecker_base_mem_defined(&c_status->MPI_ERROR, sizeof(int));
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memchecker_status(c_status);
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}
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);
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OPAL_CR_NOOP_PROGRESS();
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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/* MPI-2:4.12.5 says that if you pass in
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MPI_STATUS[ES]_IGNORE, it's erroneous */
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if (NULL == c_status || MPI_STATUS_IGNORE == c_status ||
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MPI_STATUSES_IGNORE == c_status || NULL == f_status) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD,
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MPI_ERR_IN_STATUS, FUNC_NAME);
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}
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}
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/* Note that MPI-2.2 16.3.5 states that even the hidden data in a
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status must be converted (!). This is somewhat problematic
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because the Fortran data is all INTEGERS while the C MPI_Status
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contains a size_t. That being said, note 2 things:
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1. The _ucount and _canceled members are never accessed from
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Fortran.
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2. configure calculated a value of MPI_STATUS_SIZE to ensure
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that the Fortran status is the Right size to hold the C
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MPI_Status (including the size_t member).
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So for the purposes of this function, just copy over all the
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data as if they were int's. This works because all OMPI
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Fortran MPI API functions that take a status as an IN argument
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first call MPI_Status_f2c on it before using it (in which case
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we'll do the exact opposite copy, thereby rebuilding the size_t
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value properly before it is accessed in C).
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Note that if sizeof(int) > sizeof(INTEGER), we're potentially
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hosed anyway (i.e., even the public values in the status could
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get truncated). But if sizeof(int) == sizeof(INTEGER) or
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sizeof(int) < sizeof(INTEGER), everything should be kosher. */
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c_ints = (const int*)c_status;
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for( i = 0; i < (int)(sizeof(MPI_Status) / sizeof(int)); i++ )
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f_status[i] = OMPI_INT_2_FINT(c_ints[i]);
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return MPI_SUCCESS;
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}
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