77 строки
2.8 KiB
C
77 строки
2.8 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) 2006 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2011 Sandia National Laboratories. All rights reserved.
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* Copyright (c) 2015 Research Organization for Information Science
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* and Technology (RIST). All rights reserved.
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* Copyright (c) 2015 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/win/win.h"
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#include "ompi/mca/osc/osc.h"
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#include "ompi/datatype/ompi_datatype.h"
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#if OMPI_BUILD_MPI_PROFILING
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#if OPAL_HAVE_WEAK_SYMBOLS
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#pragma weak MPI_Compare_and_swap = PMPI_Compare_and_swap
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#endif
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#define MPI_Compare_and_swap PMPI_Compare_and_swap
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#endif
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static const char FUNC_NAME[] = "MPI_Compare_and_swap";
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int MPI_Compare_and_swap(const void *origin_addr, const void *compare_addr, void *result_addr,
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MPI_Datatype datatype, int target_rank, MPI_Aint target_disp, MPI_Win win)
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{
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int rc;
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if (MPI_PARAM_CHECK) {
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rc = OMPI_SUCCESS;
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (ompi_win_invalid(win)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_WIN, FUNC_NAME);
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} else if (ompi_win_peer_invalid(win, target_rank) &&
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(MPI_PROC_NULL != target_rank)) {
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rc = MPI_ERR_RANK;
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} else if ( MPI_WIN_FLAVOR_DYNAMIC != win->w_flavor && target_disp < 0 ) {
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rc = MPI_ERR_DISP;
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} else {
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OMPI_CHECK_DATATYPE_FOR_ONE_SIDED(rc, datatype, 1);
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}
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OMPI_ERRHANDLER_CHECK(rc, win, rc, FUNC_NAME);
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}
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if (MPI_PROC_NULL == target_rank) return MPI_SUCCESS;
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OPAL_CR_ENTER_LIBRARY();
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rc = win->w_osc_module->osc_compare_and_swap(origin_addr, compare_addr, result_addr,
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datatype, target_rank, target_disp, win);
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OMPI_ERRHANDLER_RETURN(rc, win, rc, FUNC_NAME);
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}
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