File: orte_finalize.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) 2004-2006 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 (c) 2009      Cisco Systems, Inc.  All rights reserved.
 * Copyright (c) 2011-2013 Los Alamos National Security, LLC.
 *                         All rights reserved.
 * Copyright (c) 2014-2017 Intel, Inc. All rights reserved.
 * Copyright (c) 2017      Research Organization for Information Science
 *                         and Technology (RIST). All rights reserved.
 * $COPYRIGHT$
 *
 * Additional copyrights may follow
 *
 * $HEADER$
 */

/** @file **/

#include "orte_config.h"
#include "orte/constants.h"

#include "opal/runtime/opal.h"
#include "opal/util/output.h"
#include "opal/util/argv.h"

#include "orte/mca/ess/ess.h"
#include "orte/mca/ess/base/base.h"
#include "orte/mca/schizo/base/base.h"
#include "orte/runtime/orte_globals.h"
#include "orte/runtime/runtime.h"
#include "orte/runtime/orte_locks.h"
#include "orte/util/listener.h"
#include "orte/util/name_fns.h"
#include "orte/util/proc_info.h"
#include "orte/util/show_help.h"

int orte_finalize(void)
{
    int rc;

    --orte_initialized;
    if (0 != orte_initialized) {
        /* check for mismatched calls */
        if (0 > orte_initialized) {
            opal_output(0, "%s MISMATCHED CALLS TO ORTE FINALIZE",
                        ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
        }
        return ORTE_ERROR;
    }

    /* protect against multiple calls */
    if (opal_atomic_trylock(&orte_finalize_lock)) {
        return ORTE_SUCCESS;
    }

    /* flag that we are finalizing */
    orte_finalizing = true;

    if (ORTE_PROC_IS_HNP || ORTE_PROC_IS_DAEMON) {
        /* stop listening for connections - will
         * be ignored if no listeners were registered */
        orte_stop_listening();
    }

    /* flush the show_help system */
    orte_show_help_finalize();

    /* call the finalize function for this environment */
    if (ORTE_SUCCESS != (rc = orte_ess.finalize())) {
        return rc;
    }

    /* close the ess itself */
    (void) mca_base_framework_close(&orte_ess_base_framework);

    /* finalize and close schizo */
    orte_schizo.finalize();
    (void) mca_base_framework_close(&orte_schizo_base_framework);

    /* Close the general debug stream */
    opal_output_close(orte_debug_output);

    if (NULL != orte_fork_agent) {
        opal_argv_free(orte_fork_agent);
    }

    /* destruct our process info */
    OBJ_DESTRUCT(&orte_process_info.super);

    /* finalize the opal utilities */
    rc = opal_finalize();

    return rc;
}