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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2011 Sandia National Laboratories. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/win/win.h"
#include "ompi/mca/osc/osc.h"
#include "ompi/datatype/ompi_datatype.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Compare_and_swap = PMPI_Compare_and_swap
#endif
#define MPI_Compare_and_swap PMPI_Compare_and_swap
#endif
static const char FUNC_NAME[] = "MPI_Compare_and_swap";
int MPI_Compare_and_swap(const void *origin_addr, const void *compare_addr, void *result_addr,
MPI_Datatype datatype, int target_rank, MPI_Aint target_disp, MPI_Win win)
{
int rc;
if (MPI_PARAM_CHECK) {
rc = OMPI_SUCCESS;
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (ompi_win_invalid(win)) {
return OMPI_ERRHANDLER_NOHANDLE_INVOKE(MPI_ERR_WIN, FUNC_NAME);
} else if (ompi_win_peer_invalid(win, target_rank) &&
(MPI_PROC_NULL != target_rank)) {
rc = MPI_ERR_RANK;
} else if ( MPI_WIN_FLAVOR_DYNAMIC != win->w_flavor && target_disp < 0 ) {
rc = MPI_ERR_DISP;
} else {
OMPI_CHECK_DATATYPE_FOR_ONE_SIDED(rc, datatype, 1);
}
OMPI_ERRHANDLER_CHECK(rc, win, rc, FUNC_NAME);
}
if (MPI_PROC_NULL == target_rank) return MPI_SUCCESS;
rc = win->w_osc_module->osc_compare_and_swap(origin_addr, compare_addr, result_addr,
datatype, target_rank, target_disp, win);
OMPI_ERRHANDLER_RETURN(rc, win, rc, FUNC_NAME);
}
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