/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2004-2008 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 (c) 2015      Los Alamos National Security, LLC. All rights
 *                         reserved.
 * Copyright (c) 2016-2020 Intel, Inc.  All rights reserved.
 * Copyright (c) 2021-2022 Nanook Consulting.  All rights reserved.
 * $COPYRIGHT$
 *
 * Additional copyrights may follow
 *
 * $HEADER$
 *
 * These symbols are in a file by themselves to provide nice linker
 * semantics.  Since linkers generally pull in symbols by object
 * files, keeping these symbols as the only symbols in this file
 * prevents utility programs such as "ompi_info" from having to import
 * entire components just to query their version and parameters.
 */

#include "src/include/pmix_config.h"
#include "pmix_common.h"

#include "preg_compress.h"
#include "src/mca/pcompress/pcompress.h"
#include "src/mca/preg/preg.h"

static pmix_status_t component_open(void);
static pmix_status_t component_close(void);
static pmix_status_t component_query(pmix_mca_base_module_t **module, int *priority);

/*
 * Instantiate the public struct with all of our public information
 * and pointers to our public functions in it
 */
pmix_mca_base_component_t pmix_mca_preg_compress_component = {
    PMIX_PREG_BASE_VERSION_1_0_0,

    /* Component name and version */
    .pmix_mca_component_name = "compress",
    PMIX_MCA_BASE_MAKE_VERSION(component, PMIX_MAJOR_VERSION, PMIX_MINOR_VERSION,
                               PMIX_RELEASE_VERSION),

    /* Component open and close functions */
    .pmix_mca_open_component = component_open,
    .pmix_mca_close_component = component_close,
    .pmix_mca_query_component = component_query,
};

static int component_open(void)
{
    return PMIX_SUCCESS;
}

static int component_query(pmix_mca_base_module_t **module, int *priority)
{
    if (NULL == pmix_compress.compress_string) {
        return PMIX_ERROR;
    }
    /* we should always be first in priority */
    *priority = 100;
    *module = (pmix_mca_base_module_t *) &pmix_preg_compress_module;
    return PMIX_SUCCESS;
}

static int component_close(void)
{
    return PMIX_SUCCESS;
}
