149 строки
5.3 KiB
C
149 строки
5.3 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Cisco, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include "opal/constants.h"
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#include "opal/util/output.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "opal/mca/base/mca_base_param.h"
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#include "opal/mca/carto/carto.h"
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#include "opal/mca/carto/base/base.h"
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/*
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* Globals
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*/
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bool opal_carto_base_selected = false;
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const opal_carto_base_component_1_0_0_t *opal_carto_base_component = NULL;
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const opal_carto_base_module_1_0_0_t *opal_carto_base_module = NULL;
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int opal_carto_base_select(void)
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{
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int priority = 0, best_priority = 0;
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opal_list_item_t *item = NULL;
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mca_base_component_list_item_t *cli = NULL;
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opal_carto_base_component_1_0_0_t *component = NULL,
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*best_component = NULL;
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const opal_carto_base_module_1_0_0_t *module = NULL,
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*best_module = NULL;
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char *value;
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/* Register the framework MCA param and look it up */
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mca_base_param_reg_string_name("carto", NULL,
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"Which carto component to use (empty = auto-select)",
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false, false,
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NULL, &value);
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if (NULL == value || 0 == strlen(value)) {
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: auto-selecting");
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} else {
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: looking for %s component",
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value);
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}
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/* Traverse the list of available components; call their init
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functions. */
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best_priority = -1;
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best_component = NULL;
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module = NULL;
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for (item = opal_list_get_first(&opal_carto_base_components_opened);
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opal_list_get_end(&opal_carto_base_components_opened) != item;
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item = opal_list_get_next(item) ) {
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cli = (mca_base_component_list_item_t *) item;
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component = (opal_carto_base_component_1_0_0_t *) cli->cli_component;
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/* if there is an include list - item must be in the list to
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be included */
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if (NULL != value && strlen(value) > 0 &&
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0 != strcmp(component->cartoc_version.mca_component_name,
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value)) {
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: skipping %s component",
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component->cartoc_version.mca_component_name);
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continue;
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}
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if (NULL == component->cartoc_query) {
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: no init function; ignoring component %s",
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component->cartoc_version.mca_component_name );
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continue;
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}
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: initializing component %s",
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component->cartoc_version.mca_component_name);
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module = component->cartoc_query(&priority);
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if (NULL == module) {
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: init returned failure for component %s",
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component->cartoc_version.mca_component_name );
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continue;
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}
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: init returned priority %d",
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priority );
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if (priority > best_priority) {
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best_priority = priority;
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best_component = component;
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best_module = module;
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}
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}
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/* Finished querying all components. Check for the bozo case. */
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if (NULL == best_component ) {
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return OPAL_ERR_NOT_FOUND;
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}
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/* Now go through the opened list and close all the non-selected
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components */
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mca_base_components_close(opal_carto_base_output,
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&opal_carto_base_components_opened,
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(mca_base_component_t *) best_component);
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/* Save the winner */
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opal_carto_base_component = best_component;
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opal_carto_base_module = best_module;
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opal_output_verbose(10, opal_carto_base_output,
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"carto:select: component %s selected",
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best_component->cartoc_version.mca_component_name);
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opal_carto_base_selected = true;
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/* Initialize the winner */
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if (NULL != opal_carto_base_module) {
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if (OPAL_SUCCESS != opal_carto_base_module->carto_module_init()) {
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return OPAL_ERROR;
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}
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}
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return OPAL_SUCCESS;
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}
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