020b9991a4
Other changes: - Added a flag to the MCA variable system to indicate a variable should go away when its group does. Both mca_base_framework_var_register() and mca_base_component_var_register() set this flag. Notes: - mca_base_components_open is deprecated. It will be removed in a future commit. - All frameworks should use MCA_BASE_FRAMEWORK_DECLARE to declare their framework structure. - All calls to framework open/close functions should be changed to use the mca_base_framework_* functions. - Instead of special-casing installdirs a flag was added to prevent calling into the variable system when opening a framework. - Ralph: Clarify the functional definition of the "register" function in the MCA framework object - it had the same name as another function that does a totally different thing. - As per discussion with Ralph the behavior of mca_base_framework_register() is to always call mca_base_framework_components_register() if the framework's register function was successful. This removed the need for frameworks to have to call this function directly. This commit was SVN r28237.
217 строки
7.7 KiB
C
217 строки
7.7 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2008 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) 2004-2013 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) 2008-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2011-2013 Los Alamos National Security, LLC.
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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 "opal_config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "opal/class/opal_list.h"
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#include "opal/util/argv.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/constants.h"
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/*
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* Local functions
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*/
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static int open_components(mca_base_framework_t *framework);
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struct mca_base_dummy_framework_list_item_t {
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opal_list_item_t super;
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mca_base_framework_t framework;
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};
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/**
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* Function for finding and opening either all MCA components, or the
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* one that was specifically requested via a MCA parameter.
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*/
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int mca_base_framework_components_open (mca_base_framework_t *framework,
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mca_base_open_flag_t flags)
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{
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/* Open flags are not used at this time. Suppress compiler warning. */
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if (flags & MCA_BASE_OPEN_FIND_COMPONENTS) {
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/* Find and load requested components */
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int ret = mca_base_component_find(NULL, framework->framework_name,
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framework->framework_static_components,
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framework->framework_selection,
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&framework->framework_components, true);
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if (OPAL_SUCCESS != ret) {
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return ret;
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}
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}
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/* Open all registered components */
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return open_components (framework);
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}
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int mca_base_components_open (const char *type_name, int output_id,
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const mca_base_component_t **static_components,
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opal_list_t *components_available,
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bool open_dso_components)
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{
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/* create a dummy framework -- this leaks -- i know -- but it is temporary */
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mca_base_register_flag_t register_flags;
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mca_base_framework_t *dummy_framework;
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opal_list_item_t *item;
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int ret;
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dummy_framework = calloc (1, sizeof(*dummy_framework));
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dummy_framework->framework_static_components = static_components;
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dummy_framework->framework_output = output_id;
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dummy_framework->framework_name = strdup(type_name);
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if (open_dso_components) {
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register_flags = MCA_BASE_REGISTER_STATIC_ONLY;
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} else {
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register_flags = MCA_BASE_REGISTER_DEFAULT;
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}
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ret = mca_base_framework_components_register (dummy_framework, register_flags);
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if (OPAL_SUCCESS != ret) {
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free (dummy_framework);
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return ret;
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}
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ret = mca_base_framework_components_open (dummy_framework, 0);
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if (OPAL_SUCCESS != ret) {
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(void) mca_base_framework_components_close (dummy_framework, NULL);
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free (dummy_framework);
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return ret;
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}
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OBJ_CONSTRUCT(components_available, opal_list_t);
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while (NULL != (item = opal_list_remove_first(&dummy_framework->framework_components))) {
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opal_list_append(components_available, item);
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}
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OBJ_DESTRUCT(&dummy_framework->framework_components);
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return OPAL_SUCCESS;
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}
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/*
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* Traverse the entire list of found components (a list of
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* mca_base_component_t instances). If the requested_component_names
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* array is empty, or the name of each component in the list of found
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* components is in the requested_components_array, try to open it.
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* If it opens, add it to the components_available list.
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*/
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static int open_components(mca_base_framework_t *framework)
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{
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opal_list_t *components = &framework->framework_components;
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uint32_t open_only_flags = MCA_BASE_METADATA_PARAM_NONE;
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int output_id = framework->framework_output;
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mca_base_component_list_item_t *cli, *next;
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int ret;
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/*
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* Pre-process the list with parameter constraints
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* e.g., If requested to select only CR enabled components
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* then only make available those components.
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*
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* JJH Note: Currently checkpoint/restart is the only user of this
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* functionality. If other component constraint options are
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* added, then this logic can be used for all contraint
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* options.
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*
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* NTH: Logic moved to mca_base_components_filter.
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*/
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#if (OPAL_ENABLE_FT == 1) && (OPAL_ENABLE_FT_CR == 1)
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if (mca_base_component_distill_checkpoint_ready) {
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open_only_flags |= MCA_BASE_METADATA_PARAM_CHECKPOINT;
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}
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#endif /* (OPAL_ENABLE_FT == 1) && (OPAL_ENABLE_FT_CR == 1) */
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/* If mca_base_framework_register_components was called with the MCA_BASE_COMPONENTS_ALL flag
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we need to trim down and close any extra components we do not want open */
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ret = mca_base_components_filter (framework->framework_name, &framework->framework_components,
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framework->framework_output, framework->framework_selection,
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open_only_flags);
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if (OPAL_SUCCESS != ret) {
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return ret;
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}
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/* Announce */
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opal_output_verbose(10, output_id,
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"mca: base: components_open: opening %s components",
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framework->framework_name);
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/* Traverse the list of components */
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OPAL_LIST_FOREACH_SAFE(cli, next, components, mca_base_component_list_item_t) {
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const mca_base_component_t *component = cli->cli_component;
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opal_output_verbose(10, output_id,
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"mca: base: components_open: found loaded component %s",
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component->mca_component_name);
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if (NULL != component->mca_open_component) {
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/* Call open if register didn't call it already */
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ret = component->mca_open_component();
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if (OPAL_SUCCESS == ret) {
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opal_output_verbose(10, output_id,
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"mca: base: components_open: "
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"component %s open function successful",
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component->mca_component_name);
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} else {
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if (OPAL_ERR_NOT_AVAILABLE != ret) {
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/* If the component returns OPAL_ERR_NOT_AVAILABLE,
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it's a cue to "silently ignore me" -- it's not a
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failure, it's just a way for the component to say
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"nope!".
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Otherwise, however, display an error. We may end
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up displaying this twice, but it may go to separate
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streams. So better to be redundant than to not
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display the error in the stream where it was
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expected. */
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if (mca_base_component_show_load_errors) {
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opal_output(0, "mca: base: components_open: "
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"component %s / %s open function failed",
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component->mca_type_name,
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component->mca_component_name);
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}
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opal_output_verbose(10, output_id,
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"mca: base: components_open: "
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"component %s open function failed",
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component->mca_component_name);
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}
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mca_base_component_close (component, output_id);
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opal_list_remove_item (components, &cli->super);
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OBJ_RELEASE(cli);
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}
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}
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}
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/* All done */
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return OPAL_SUCCESS;
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}
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