d70e2e8c2b
Remains to be tested to ensure everything came over cleanly, so please continue to withhold commits a little longer This commit was SVN r17632.
130 строки
5.1 KiB
C
130 строки
5.1 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) 2004-2007 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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* $COPYRIGHT$
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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 "orte_config.h"
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#include "orte/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 "orte/mca/iof/iof.h"
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#include "orte/mca/iof/base/base.h"
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#include "opal/mca/base/mca_base_component_repository.h"
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orte_iof_base_module_t orte_iof;
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/**
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* Call the init function on all available components to find out if
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* they want to run. Select the single component with the highest
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* priority.
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*/
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int orte_iof_base_select(void)
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{
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opal_list_item_t *item;
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mca_base_component_list_item_t *cli;
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int selected_priority = -1;
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orte_iof_base_component_t *selected_component = NULL;
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orte_iof_base_module_t *selected_module = NULL;
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bool selected_allow_user;
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bool selected_have_hidden;
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/* Traverse the list of opened modules; call their init functions. */
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for(item = opal_list_get_first(&orte_iof_base.iof_components_opened);
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item != opal_list_get_end(&orte_iof_base.iof_components_opened);
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item = opal_list_get_next(item)) {
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orte_iof_base_component_t* component;
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cli = (mca_base_component_list_item_t *) item;
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component = (orte_iof_base_component_t *) cli->cli_component;
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opal_output_verbose(10, orte_iof_base.iof_output,
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"orte_iof_base_select: initializing %s component %s",
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component->iof_version.mca_type_name,
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component->iof_version.mca_component_name);
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if (NULL == component->iof_init) {
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opal_output_verbose(10, orte_iof_base.iof_output,
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"orte_iof_base_select: no init function; ignoring component");
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continue;
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} else {
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bool allow_user;
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bool have_hidden;
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int priority;
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orte_iof_base_module_t* module = component->iof_init(&priority, &allow_user, &have_hidden);
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/* If the component didn't initialize, remove it from the opened
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list and remove it from the component repository */
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if (NULL == module) {
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opal_output_verbose(10, orte_iof_base.iof_output,
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"orte_iof_base_select: init returned failure");
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continue;
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}
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/* This iof component architecture is borked. There is an init function without the
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* corresponding finalize. The only available finalize (and looking to the SVC it
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* seems true) is the one attached to the module. Therefore, in order to allow
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* the iof to cleanly deselect we have to call the module finalize function when
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* we know that the component will not get selected.
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*/
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if(priority > selected_priority) {
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if( (NULL != selected_module) && (NULL != selected_module->iof_finalize) )
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selected_module->iof_finalize();
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selected_priority = priority;
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selected_component = component;
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selected_module = module;
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selected_allow_user = allow_user;
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selected_have_hidden = have_hidden;
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} else {
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if( NULL != module->iof_finalize )
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module->iof_finalize();
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}
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}
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}
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/* unload all components that were not selected */
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item = opal_list_get_first(&orte_iof_base.iof_components_opened);
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while(item != opal_list_get_end(&orte_iof_base.iof_components_opened)) {
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opal_list_item_t* next = opal_list_get_next(item);
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orte_iof_base_component_t* component;
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cli = (mca_base_component_list_item_t *) item;
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component = (orte_iof_base_component_t *) cli->cli_component;
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if(component != selected_component) {
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opal_output_verbose(10, orte_iof_base.iof_output,
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"orte_iof_base_select: module %s unloaded",
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component->iof_version.mca_component_name);
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mca_base_component_repository_release((mca_base_component_t *) component);
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opal_list_remove_item(&orte_iof_base.iof_components_opened, item);
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OBJ_RELEASE(item);
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}
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item = next;
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}
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/* setup reference to selected module */
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if (NULL != selected_module) {
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orte_iof = *selected_module;
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orte_iof_base.iof_flush = true;
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return ORTE_SUCCESS;
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}
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/* Oops -- this shouldn't happen */
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opal_output(orte_iof_base.iof_output, "iof:select: no components found!");
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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