/* -*- 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 "src/hwloc/pmix_hwloc.h"
#include "src/mca/pnet/pnet.h"
#include "src/util/pmix_argv.h"
#include "src/util/pmix_parse_options.h"

#include "pnet_usnic.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);
static pmix_status_t component_register(void);

/*
 * Instantiate the public struct with all of our public information
 * and pointers to our public functions in it
 */
pmix_pnet_usnic_component_t pmix_mca_pnet_usnic_component = {
    .super = {
        PMIX_PNET_BASE_VERSION_1_0_0,

        /* Component name and version */
        .pmix_mca_component_name = "usnic",
        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_register_component_params = component_register,
        .pmix_mca_query_component = component_query,
    },
    .include = NULL,
    .exclude = NULL,
    .tcp_static_ports = NULL,
    .tcp6_static_ports = NULL
};

static char *static_port_string = NULL;
static char *static_port_string6 = NULL;

static pmix_status_t component_register(void)
{
    pmix_mca_base_component_t *component = &pmix_mca_pnet_usnic_component.super;

    pmix_mca_pnet_usnic_component.incparms = NULL;
    (void) pmix_mca_base_component_var_register(
        component, "include_envars",
        "Comma-delimited list of envars to harvest (\'*\' and \'?\' supported)",
        PMIX_MCA_BASE_VAR_TYPE_STRING,
        &pmix_mca_pnet_usnic_component.incparms);
    if (NULL != pmix_mca_pnet_usnic_component.incparms) {
        pmix_mca_pnet_usnic_component.include = PMIx_Argv_split(pmix_mca_pnet_usnic_component.incparms, ',');
    }

    pmix_mca_pnet_usnic_component.excparms = NULL;
    (void) pmix_mca_base_component_var_register(
        component, "exclude_envars",
        "Comma-delimited list of envars to exclude (\'*\' and \'?\' supported)",
        PMIX_MCA_BASE_VAR_TYPE_STRING,
        &pmix_mca_pnet_usnic_component.excparms);
    if (NULL != pmix_mca_pnet_usnic_component.excparms) {
        pmix_mca_pnet_usnic_component.exclude = PMIx_Argv_split(pmix_mca_pnet_usnic_component.excparms, ',');
    }

    static_port_string = NULL;
    (void) pmix_mca_base_component_var_register(component, "static_ipv4_ports",
                                                "Static ports for daemons (IPv4)",
                                                PMIX_MCA_BASE_VAR_TYPE_INT,
                                                &static_port_string);
    /* if ports were provided, parse the provided range */
    if (NULL != static_port_string) {
        pmix_util_parse_range_options(static_port_string, &pmix_mca_pnet_usnic_component.tcp_static_ports);
        if (0 == strcmp(pmix_mca_pnet_usnic_component.tcp_static_ports[0], "-1")) {
            PMIx_Argv_free(pmix_mca_pnet_usnic_component.tcp_static_ports);
            pmix_mca_pnet_usnic_component.tcp_static_ports = NULL;
        }
    } else {
        pmix_mca_pnet_usnic_component.tcp_static_ports = NULL;
    }

    static_port_string6 = NULL;
    (void) pmix_mca_base_component_var_register(component, "static_ipv6_ports",
                                                "Static ports for daemons (IPv6)",
                                                PMIX_MCA_BASE_VAR_TYPE_INT,
                                                &static_port_string6);
    /* if ports were provided, parse the provided range */
    if (NULL != static_port_string6) {
        pmix_util_parse_range_options(static_port_string6, &pmix_mca_pnet_usnic_component.tcp6_static_ports);
        if (0 == strcmp(pmix_mca_pnet_usnic_component.tcp6_static_ports[0], "-1")) {
            PMIx_Argv_free(pmix_mca_pnet_usnic_component.tcp6_static_ports);
            pmix_mca_pnet_usnic_component.tcp6_static_ports = NULL;
        }
    } else {
        pmix_mca_pnet_usnic_component.tcp6_static_ports = NULL;
    }

    return PMIX_SUCCESS;
}

static pmix_status_t component_open(void)
{
    pmix_status_t rc;

    rc = pmix_hwloc_check_vendor(&pmix_globals.topology, 0x1137, 0x208);
    return rc;
}

static pmix_status_t component_query(pmix_mca_base_module_t **module, int *priority)
{
    /* check our topology to see if we have any USNIC devices */
    *priority = 10;
    *module = (pmix_mca_base_module_t *) &pmix_pnet_usnic_module;
    return PMIX_SUCCESS;
}

static pmix_status_t component_close(void)
{
    return PMIX_SUCCESS;
}