/*
 * Copyright (c) 2004-2005 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) 2004-2005 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.
 * $COPYRIGHT$
 * 
 * Additional copyrights may follow
 * 
 * $HEADER$
 */

#include "ompi_config.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "mpi.h"
#include "ompi/communicator/communicator.h"
#include "orte/util/show_help.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "ompi/mca/coll/coll.h"
#include "ompi/mca/coll/base/base.h"

#define CLOSE(comm, func)                                       \
    do {                                                        \
        if (NULL != comm->c_coll.coll_ ## func ## _module) {    \
            OBJ_RELEASE(comm->c_coll.coll_ ## func ## _module); \
            comm->c_coll.coll_## func = NULL;                   \
            comm->c_coll.coll_## func ## _module = NULL;        \
        }                                                       \
    } while (0)

int mca_coll_base_comm_unselect(ompi_communicator_t *comm)
{
    CLOSE(comm, allgather); 
    CLOSE(comm, allgatherv); 
    CLOSE(comm, allreduce); 
    CLOSE(comm, alltoall); 
    CLOSE(comm, alltoallv); 
    CLOSE(comm, alltoallw); 
    CLOSE(comm, barrier); 
    CLOSE(comm, bcast); 
    CLOSE(comm, exscan); 
    CLOSE(comm, gather); 
    CLOSE(comm, gatherv); 
    CLOSE(comm, reduce); 
    CLOSE(comm, reduce_scatter); 
    CLOSE(comm, scan); 
    CLOSE(comm, scatter); 
    CLOSE(comm, scatterv); 

    /* All done */
    return OMPI_SUCCESS;
}