233 строки
7.6 KiB
C
233 строки
7.6 KiB
C
/*
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* Copyright (c) 2004-2011 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) 2011-2013 Los Alamos National Security, LLC. All rights
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* 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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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "opal/mca/mca.h"
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#include "opal/mca/base/mca_base_component_repository.h"
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#include "opal/util/output.h"
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#include "orte/mca/rml/rml.h"
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#include "orte/util/name_fns.h"
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#include "orte/mca/rml/base/base.h"
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/* The following file was created by configure. It contains extern
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* statements and the definition of an array of pointers to each
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* component's public mca_base_component_t struct. */
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#include "orte/mca/rml/base/static-components.h"
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orte_rml_module_t orte_rml = {
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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orte_rml_base_null_send,
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orte_rml_base_null_send_nb,
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orte_rml_base_null_send_buffer,
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orte_rml_base_null_send_buffer_nb,
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orte_rml_base_null_recv,
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orte_rml_base_null_recv_nb,
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orte_rml_base_null_recv_buffer,
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orte_rml_base_null_recv_buffer_nb,
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orte_rml_base_null_recv_cancel,
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NULL,
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NULL,
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NULL
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};
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opal_list_t orte_rml_base_subscriptions;
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orte_rml_component_t *orte_rml_component = NULL;
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static bool selected = false;
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static char *orte_rml_base_wrapper = NULL;
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static int orte_rml_base_register(mca_base_register_flag_t flags)
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{
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int var_id;
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/*
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* Which RML Wrapper component to use, if any
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* - NULL or "" = No wrapper
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* - ow. select that specific wrapper component
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*/
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orte_rml_base_wrapper = NULL;
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var_id = mca_base_var_register("orte", "rml", "base", "wrapper",
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"Use a Wrapper component around the selected RML component",
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MCA_BASE_VAR_TYPE_STRING, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&orte_rml_base_wrapper);
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(void) mca_base_var_register_synonym(var_id, "orte", "rml",NULL,"wrapper", 0);
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return ORTE_SUCCESS;
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}
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static int orte_rml_base_close(void)
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{
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OBJ_DESTRUCT(&orte_rml_base_subscriptions);
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return mca_base_framework_components_close(&orte_rml_base_framework, NULL);
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}
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static int orte_rml_base_open(mca_base_open_flag_t flags)
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{
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/* Initialize globals */
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OBJ_CONSTRUCT(&orte_rml_base_subscriptions, opal_list_t);
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/* Open up all available components */
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return mca_base_framework_components_open(&orte_rml_base_framework, flags);
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}
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MCA_BASE_FRAMEWORK_DECLARE(orte, rml, "ORTE Run-Time Messaging Layer",
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orte_rml_base_register, orte_rml_base_open, orte_rml_base_close,
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mca_rml_base_static_components, 0);
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int orte_rml_base_select(void)
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{
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opal_list_item_t *item;
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int selected_priority = -1;
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orte_rml_component_t *selected_component = NULL;
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orte_rml_module_t *selected_module = NULL;
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int wrapper_priority = -1;
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orte_rml_component_t *wrapper_component = NULL;
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orte_rml_module_t *wrapper_module = NULL;
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bool return_silent=false;
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if (selected) {
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return ORTE_SUCCESS;
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}
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selected = true;
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for (item = opal_list_get_first(&orte_rml_base_framework.framework_components);
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item != opal_list_get_end(&orte_rml_base_framework.framework_components) ;
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item = opal_list_get_next(item)) {
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mca_base_component_list_item_t *cli;
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orte_rml_component_t* component;
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cli = (mca_base_component_list_item_t *) item;
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component = (orte_rml_component_t *) cli->cli_component;
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opal_output_verbose(10, orte_rml_base_framework.framework_output,
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"orte_rml_base_select: initializing %s component %s",
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component->rml_version.mca_type_name,
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component->rml_version.mca_component_name);
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if (NULL == component->rml_init) {
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opal_output_verbose(10, orte_rml_base_framework.framework_output,
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"orte_rml_base_select: no init function; ignoring component");
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} else {
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int priority = 0;
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orte_rml_module_t* module = component->rml_init(&priority);
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if (NULL == module) {
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opal_output_verbose(10, orte_rml_base_framework.framework_output,
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"orte_rml_base_select: init returned failure");
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if (priority < 0) {
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return_silent = true;
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}
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continue;
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}
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if(NULL != orte_rml_base_wrapper &&
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/* If this is a wrapper component then save it for later */
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RML_SELECT_WRAPPER_PRIORITY >= priority) {
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if( 0 == strncmp(component->rml_version.mca_component_name,
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orte_rml_base_wrapper,
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strlen(orte_rml_base_wrapper) ) ) {
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wrapper_priority = priority;
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wrapper_component = component;
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wrapper_module = module;
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}
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} else if (priority > selected_priority) {
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/* Otherwise this is a normal module and subject to normal selection */
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if (NULL != selected_module && NULL != selected_module->finalize) {
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selected_module->finalize();
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}
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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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}
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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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*/
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item = opal_list_get_first(&orte_rml_base_framework.framework_components);
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while (item != opal_list_get_end(&orte_rml_base_framework.framework_components)) {
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opal_list_item_t* next = opal_list_get_next(item);
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orte_rml_component_t* component;
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mca_base_component_list_item_t *cli;
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cli = (mca_base_component_list_item_t *) item;
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component = (orte_rml_component_t *) cli->cli_component;
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/* Keep it if it is the wrapper component */
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if (NULL != wrapper_component &&
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component == wrapper_component) {
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item = next;
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continue;
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}
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/* Not the selected component */
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if (component != selected_component) {
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opal_output_verbose(10, orte_rml_base_framework.framework_output,
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"orte_rml_base_select: module %s unloaded",
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component->rml_version.mca_component_name);
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mca_base_component_repository_release((mca_base_component_t *) component);
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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_rml = *selected_module;
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orte_rml_component = selected_component;
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}
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/* If a wrapper component was requested then
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* Make sure it can switch out the selected module
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*/
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if( NULL != wrapper_component) {
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wrapper_component->rml_init(NULL);
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}
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if (NULL == selected_component) {
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if (return_silent) {
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return ORTE_ERR_SILENT;
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}
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return ORTE_ERROR;
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}
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return ORTE_SUCCESS;
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}
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void orte_rml_send_callback(int status, orte_process_name_t* sender,
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opal_buffer_t* buffer, orte_rml_tag_t tag,
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void* cbdata)
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{
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OBJ_RELEASE(buffer);
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}
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