File: comm_compare.c

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/*
 * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
 *                         University Research and Technology
 *                         Corporation.  All rights reserved.
 * Copyright (c) 2004-2005 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) 2007      Cisco Systems, Inc.  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/memchecker.h"

#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Comm_compare = PMPI_Comm_compare
#endif

#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif

static const char FUNC_NAME[] = "MPI_Comm_compare";


int MPI_Comm_compare(MPI_Comm comm1, MPI_Comm comm2, int *result) {

    int rc;

    MEMCHECKER(
        memchecker_comm(comm1);
        memchecker_comm(comm2);
    );

    if ( MPI_PARAM_CHECK ) {
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);

        if (ompi_comm_invalid(comm1) || ompi_comm_invalid(comm2)) {
            return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, 
                                          FUNC_NAME);
        }

        if ( NULL == result ) {
            return OMPI_ERRHANDLER_INVOKE(comm1, MPI_ERR_ARG, 
                                          FUNC_NAME);
        }
    }

    OPAL_CR_ENTER_LIBRARY();

    rc = ompi_comm_compare ( (ompi_communicator_t*)comm1, 
                             (ompi_communicator_t*)comm2,
                             result);
    OMPI_ERRHANDLER_RETURN ( rc, comm1, rc, FUNC_NAME);
}