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openmpi/orte/mca/db/dbm/db_dbm_component.c

92 строки
2.2 KiB
C

/*
* Copyright (c) 2010 Cisco Systems, 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 "opal/mca/base/mca_base_param.h"
#include "orte/util/proc_info.h"
#include "orte/mca/db/db.h"
#include "orte/mca/db/base/base.h"
#include "db_dbm.h"
extern orte_db_base_module_t orte_db_dbm_module;
char *orte_db_dbm_directory;
/*
* 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_dbm_component = {
{
ORTE_DB_BASE_VERSION_1_0_0,
/* Component name and version */
"dbm",
ORTE_MAJOR_VERSION,
ORTE_MINOR_VERSION,
ORTE_RELEASE_VERSION,
/* Component open and close functions */
orte_db_dbm_component_open,
orte_db_dbm_component_close,
orte_db_dbm_component_query
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
}
};
int
orte_db_dbm_component_open(void)
{
return ORTE_SUCCESS;
}
int orte_db_dbm_component_query(mca_base_module_t **module, int *priority)
{
mca_base_component_t *c = &mca_db_dbm_component.base_version;
/* retrieve the name of the file to be used */
mca_base_param_reg_string(c, "dir",
"Name of directory to be used for storing and recovering db information",
false, false, NULL, &orte_db_dbm_directory);
if (NULL != orte_db_dbm_directory) {
*priority = 50;
*module = (mca_base_module_t*)&orte_db_dbm_module;
return ORTE_SUCCESS;
}
*priority = 0;
*module = NULL;
return ORTE_ERROR;
}
int
orte_db_dbm_component_close(void)
{
return ORTE_SUCCESS;
}