273 строки
8.2 KiB
C
273 строки
8.2 KiB
C
/*
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* Copyright (c) 2012-2013 Los Alamos National Security, Inc. All rights reserved.
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* Copyright (c) 2013 Intel Inc. 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 "opal/constants.h"
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#include "opal_stdint.h"
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#include "opal/mca/mca.h"
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#include "opal/util/error.h"
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#include "opal/util/output.h"
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#include "opal/mca/base/base.h"
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#include "opal/dss/dss_types.h"
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#include "opal/mca/db/base/base.h"
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void opal_db_base_set_id(const opal_identifier_t *proc)
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{
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/* to protect alignment, copy the data across */
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memcpy(&opal_db_base.my_id, proc, sizeof(opal_identifier_t));
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opal_db_base.id_set = true;
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}
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int opal_db_base_store(const opal_identifier_t *proc,
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opal_scope_t scope,
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const char *key, const void *object,
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opal_data_type_t type)
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{
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opal_db_active_module_t *mod;
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int rc;
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if (!opal_db_base.id_set) {
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return OPAL_ERR_FATAL;
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}
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/* cycle thru the active modules until one agrees to perform the op */
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OPAL_LIST_FOREACH(mod, &opal_db_base.store_order, opal_db_active_module_t) {
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if (NULL == mod->module->store) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->store(proc, scope, key, object, type))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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OPAL_ERROR_LOG(rc);
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return rc;
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}
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}
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/* we did not perform any operation, that's an error */
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OPAL_ERROR_LOG(OPAL_ERROR);
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return OPAL_ERROR;
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}
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int opal_db_base_store_pointer(const opal_identifier_t *proc,
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opal_value_t *kv)
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{
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opal_db_active_module_t *mod;
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int rc;
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if (!opal_db_base.id_set) {
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return OPAL_ERR_FATAL;
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}
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/* cycle thru the active modules until one agrees to perform the op */
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OPAL_LIST_FOREACH(mod, &opal_db_base.store_order, opal_db_active_module_t) {
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if (NULL == mod->module->store_pointer) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->store_pointer(proc, kv))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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OPAL_ERROR_LOG(rc);
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return rc;
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}
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}
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/* we did not perform any operation, that's an error */
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OPAL_ERROR_LOG(OPAL_ERROR);
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return OPAL_ERROR;
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}
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void opal_db_base_commit(const opal_identifier_t *proc)
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{
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opal_db_active_module_t *mod;
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/* cycle thru the active modules giving each a chance to perform the op */
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OPAL_LIST_FOREACH(mod, &opal_db_base.store_order, opal_db_active_module_t) {
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if (NULL == mod->module->commit) {
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continue;
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}
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mod->module->commit(proc);
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}
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}
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int opal_db_base_fetch(const opal_identifier_t *proc,
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const char *key, void **data,
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opal_data_type_t type)
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{
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opal_db_active_module_t *mod;
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int rc, i;
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if (!opal_db_base.id_set) {
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return OPAL_ERR_FATAL;
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}
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/* cycle thru the active modules until one agrees to perform the op.
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* we cycle thru the list of modules twice - this allows us to check
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* a local store first, then attempt to obtain the data from an
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* external store that puts it in the local store
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*/
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for(i = 0; i < 2; i++) {
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OPAL_LIST_FOREACH(mod, &opal_db_base.fetch_order, opal_db_active_module_t) {
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if (NULL == mod->module->fetch) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->fetch(proc, key, data, type))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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return rc;
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}
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}
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}
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/* if we get here without performing the operation, that's an error */
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return OPAL_ERR_DATA_VALUE_NOT_FOUND;
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}
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int opal_db_base_fetch_pointer(const opal_identifier_t *proc,
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const char *key,
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void **data, opal_data_type_t type)
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{
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opal_db_active_module_t *mod;
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int rc, i;
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if (!opal_db_base.id_set) {
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return OPAL_ERR_FATAL;
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}
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/* cycle thru the active modules until one agrees to perform the op.
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* we cycle thru the list of modules twice - this allows us to check
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* a local store first, then attempt to obtain the data from an
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* external store that puts it in the local store
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*/
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for(i = 0; i < 2; i++) {
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OPAL_LIST_FOREACH(mod, &opal_db_base.fetch_order, opal_db_active_module_t) {
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if (NULL == mod->module->fetch_pointer) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->fetch_pointer(proc, key, data, type))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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return rc;
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}
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}
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}
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/* if we get here without performing the operation, that's an error */
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return OPAL_ERR_DATA_VALUE_NOT_FOUND;
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}
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int opal_db_base_fetch_multiple(const opal_identifier_t *proc,
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opal_scope_t scope,
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const char *key,
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opal_list_t *kvs)
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{
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opal_db_active_module_t *mod;
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int rc;
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if (!opal_db_base.id_set) {
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return OPAL_ERR_FATAL;
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}
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/* cycle thru the active modules until one agrees to perform the op */
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OPAL_LIST_FOREACH(mod, &opal_db_base.fetch_order, opal_db_active_module_t) {
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if (NULL == mod->module->fetch_multiple) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->fetch_multiple(proc, scope, key, kvs))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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return rc;
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}
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}
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/* if we get here without performing the operation, that's an error */
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return OPAL_ERR_DATA_VALUE_NOT_FOUND;
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}
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int opal_db_base_remove_data(const opal_identifier_t *proc,
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const char *key)
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{
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opal_db_active_module_t *mod;
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int rc;
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/* cycle thru the actiove modules until one agrees to perform the op */
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OPAL_LIST_FOREACH(mod, &opal_db_base.store_order, opal_db_active_module_t) {
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if (NULL == mod->module->remove) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->remove(proc, key))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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OPAL_ERROR_LOG(rc);
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return rc;
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}
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}
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/* if we get here without performing the operation, that's an error */
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OPAL_ERROR_LOG(OPAL_ERROR);
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return OPAL_ERROR;
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}
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int opal_db_base_add_log(const char *table,
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const opal_value_t *kvs, int nkvs)
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{
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opal_db_active_module_t *mod;
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int rc;
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/* cycle thru the active modules until one agrees to perform the op */
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OPAL_LIST_FOREACH(mod, &opal_db_base.store_order, opal_db_active_module_t) {
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if (NULL == mod->module->add_log) {
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continue;
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}
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if (OPAL_SUCCESS == (rc = mod->module->add_log(table, kvs, nkvs))) {
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return OPAL_SUCCESS;
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}
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/* modules return "next option" if they didn't perform
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* the operation - anything else is a true error.
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*/
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if (OPAL_ERR_TAKE_NEXT_OPTION != rc) {
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/* don't error log it here */
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return rc;
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}
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}
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/* if we get here without performing the operation, let the caller know */
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return OPAL_ERROR;
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}
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