107 строки
3.4 KiB
C
107 строки
3.4 KiB
C
/*
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* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2012-2013 Los Alamos National Security, Inc. All rights reserved.
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* Copyright (c) 2013-2014 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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/** @file:
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*/
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#ifndef MCA_DSTORE_BASE_H
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#define MCA_DSTORE_BASE_H
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#include "opal_config.h"
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#include "opal/types.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/base/mca_base_framework.h"
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#include "opal/mca/event/event.h"
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#include "opal/class/opal_hash_table.h"
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_pointer_array.h"
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#include "opal/dss/dss.h"
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#include "opal/mca/dstore/dstore.h"
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BEGIN_C_DECLS
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OPAL_DECLSPEC extern mca_base_framework_t opal_dstore_base_framework;
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/**
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* Select a dstore module
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*/
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OPAL_DECLSPEC int opal_dstore_base_select(void);
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/* DSTORE is an oddball framework in that it:
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*
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* has an active storage component that issues handle-specific
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* modules. This is done to provide separate storage areas that
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* are isolated from each other, and thus don't have to worry
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* about overlapping keys
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*
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* a backfill module used to attempt to retrieve data that has
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* been requested, but that the handle-specific storage module
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* does not contain. This is used in situations where data has
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* not been provided at startup, and we need to retrieve it
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* solely on-demand
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*/
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typedef struct {
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opal_dstore_base_component_t *storage_component;
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opal_dstore_base_module_t *backfill_module;
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opal_pointer_array_t handles; // array of open datastore handles
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} opal_dstore_base_t;
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OPAL_DECLSPEC extern opal_dstore_base_t opal_dstore_base;
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typedef struct {
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opal_object_t super;
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char *name;
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opal_dstore_base_module_t *module;
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} opal_dstore_handle_t;
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OBJ_CLASS_DECLARATION(opal_dstore_handle_t);
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/**
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* Data for a particular opal process
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* The name association is maintained in the
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* proc_data hash table.
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*/
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typedef struct {
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/** Structure can be put on lists (including in hash tables) */
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opal_list_item_t super;
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bool loaded;
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/* List of opal_value_t structures containing all data
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received from this process, sorted by key. */
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opal_list_t data;
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} opal_dstore_proc_data_t;
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OBJ_CLASS_DECLARATION(opal_dstore_proc_data_t);
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OPAL_DECLSPEC int opal_dstore_base_open(const char *name, opal_list_t *attrs);
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OPAL_DECLSPEC int opal_dstore_base_close(int dstorehandle);
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OPAL_DECLSPEC int opal_dstore_base_store(int dstorehandle,
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const opal_identifier_t *id,
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opal_value_t *kv);
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OPAL_DECLSPEC int opal_dstore_base_fetch(int dstorehandle,
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const opal_identifier_t *id,
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const char *key,
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opal_list_t *kvs);
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OPAL_DECLSPEC int opal_dstore_base_remove_data(int dstorehandle,
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const opal_identifier_t *id,
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const char *key);
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/* support */
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OPAL_DECLSPEC opal_dstore_proc_data_t* opal_dstore_base_lookup_proc(opal_hash_table_t *jtable,
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opal_identifier_t id);
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OPAL_DECLSPEC opal_value_t* opal_dstore_base_lookup_keyval(opal_dstore_proc_data_t *proc_data,
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const char *key);
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END_C_DECLS
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#endif
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