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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 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) 2009 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2016 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/constants.h"
#include "opal/mca/base/base.h"
#include "opal/mca/mca.h"
#include "opal/mca/memory/base/base.h"
#include "opal/mca/memory/base/empty.h"
#include "opal/mca/memory/memory.h"
/*
* The following file was created by configure. It contains extern
* statements and the definition of an array of pointers to each
* component's public mca_base_component_t struct.
*/
#include "opal/mca/memory/base/static-components.h"
static int empty_process(void)
{
return OPAL_SUCCESS;
}
static int empty_query(int *priority)
{
*priority = 0;
return OPAL_SUCCESS;
}
/*
* Local variables
*/
static opal_memory_base_component_2_0_0_t empty_component = {
/* Empty / safe functions to call if no memory component is selected */
.memoryc_query = empty_query,
.memoryc_process = empty_process,
.memoryc_register = opal_memory_base_component_register_empty,
.memoryc_deregister = opal_memory_base_component_deregister_empty,
.memoryc_set_alignment = opal_memory_base_component_set_alignment_empty,
};
/*
* Globals
*/
opal_memory_base_component_2_0_0_t *opal_memory = &empty_component;
void opal_memory_base_malloc_init_hook(void)
{
if (opal_memory->memoryc_init_hook) {
opal_memory->memoryc_init_hook();
}
}
/*
* Function for finding and opening either all MCA components, or the one
* that was specifically requested via a MCA parameter.
*/
static int opal_memory_base_open(mca_base_open_flag_t flags)
{
mca_base_component_list_item_t *item, *next;
opal_memory_base_component_2_0_0_t *tmp;
int priority, highest_priority = 0;
int ret;
/* can only be zero or one */
OPAL_LIST_FOREACH (item, &opal_memory_base_framework.framework_components,
mca_base_component_list_item_t) {
tmp = (opal_memory_base_component_2_0_0_t *) item->cli_component;
ret = tmp->memoryc_query(&priority);
if (OPAL_SUCCESS != ret || priority < highest_priority) {
continue;
}
highest_priority = priority;
opal_memory = tmp;
}
OPAL_LIST_FOREACH_SAFE (item, next, &opal_memory_base_framework.framework_components,
mca_base_component_list_item_t) {
if ((void *) opal_memory != (void *) item->cli_component) {
mca_base_component_unload(item->cli_component,
opal_memory_base_framework.framework_output);
opal_list_remove_item(&opal_memory_base_framework.framework_components, &item->super);
}
}
/* open remaining component */
ret = mca_base_framework_components_open(&opal_memory_base_framework, flags);
if (ret != OPAL_SUCCESS) {
return ret;
}
/* All done */
return OPAL_SUCCESS;
}
/* Use default register/close functions */
MCA_BASE_FRAMEWORK_DECLARE(opal, memory, "memory hooks", NULL, opal_memory_base_open, NULL,
mca_memory_base_static_components, 0);
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