1
1
openmpi/orte/mca/db/pmi/db_pmi_component.c

86 строки
2.1 KiB
C

/*
* Copyright (c) 2012 Los Alamos National Security, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* These symbols are in a file by themselves to provide nice linker
* semantics. Since linkers generally pull in symbols by object
* files, keeping these symbols as the only symbols in this file
* prevents utility programs such as "ompi_info" from having to import
* entire components just to query their version and parameters.
*/
#include "orte_config.h"
#include "orte/constants.h"
#include "opal/mca/base/base.h"
#include "orte/mca/common/pmi/common_pmi.h"
#include "orte/util/proc_info.h"
#include "orte/mca/db/db.h"
#include "orte/mca/db/base/base.h"
#include "db_pmi.h"
static int db_pmi_component_open(void);
static int db_pmi_component_query(mca_base_module_t **module, int *priority);
static int db_pmi_component_close(void);
/*
* Instantiate the public struct with all of our public information
* and pointers to our public functions in it
*/
orte_db_base_component_t mca_db_pmi_component = {
{
ORTE_DB_BASE_VERSION_1_0_0,
/* Component name and version */
"pmi",
ORTE_MAJOR_VERSION,
ORTE_MINOR_VERSION,
ORTE_RELEASE_VERSION,
/* Component open and close functions */
db_pmi_component_open,
db_pmi_component_close,
db_pmi_component_query
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
}
};
static int db_pmi_component_open(void)
{
return ORTE_SUCCESS;
}
static int db_pmi_component_query(mca_base_module_t **module, int *priority)
{
/* only use PMI if available - the ESS pmi module
* will force our selection if we are direct-launched
*/
if (mca_common_pmi_init()) {
*priority = 10;
*module = (mca_base_module_t*)&orte_db_pmi_module;
return ORTE_SUCCESS;
}
*priority = 0;
*module = NULL;
return ORTE_ERROR;
}
static int db_pmi_component_close(void)
{
mca_common_pmi_finalize();
return ORTE_SUCCESS;
}