openmpi/ompi/mpi/c/comm_disconnect.c

/*
 * 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 "mpi/c/bindings.h"

#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Comm_disconnect = PMPI_Comm_disconnect
#endif

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

static const char FUNC_NAME[] = "MPI_Comm_disconnect";


int MPI_Comm_disconnect(MPI_Comm *comm) 
{

    if ( MPI_PARAM_CHECK ) {
        OMPI_ERR_INIT_FINALIZE(FUNC_NAME);

        if ( MPI_COMM_NULL == *comm || ompi_comm_invalid (*comm))
            return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, 
                                          FUNC_NAME);
    }
    
    if (MPI_COMM_WORLD == *comm || MPI_COMM_SELF == *comm ) {
	return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM, FUNC_NAME);
    }


    if ( OMPI_COMM_IS_DYNAMIC(*comm)) {
	ompi_comm_disconnect_obj *dobj;
	
	dobj = ompi_comm_disconnect_init (*comm);
	ompi_comm_disconnect_waitall(1, &dobj);
    }
    else {
	(*comm)->c_coll.coll_barrier(*comm);
    }

    ompi_comm_free(comm);
    return MPI_SUCCESS;
}