118 строки
3.2 KiB
C
118 строки
3.2 KiB
C
/**
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.5A
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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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/**
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* @file
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* Description of the Registration Cache framework
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*/
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#include "ompi_config.h"
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#include "opal/mca/mca.h"
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#include "mpool_base_tree.h"
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OBJ_CLASS_INSTANCE(mca_mpool_base_tree_item_t, ompi_free_list_item_t, NULL, NULL);
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/*
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* use globals for the tree and the tree_item free list..
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*/
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ompi_rb_tree_t mca_mpool_base_tree;
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ompi_free_list_t mca_mpool_base_tree_item_free_list;
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/*
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* simple minded compare function...
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*/
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int mca_mpool_base_tree_node_compare(void * key1, void * key2)
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{
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if(key1 < key2)
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{
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return -1;
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}
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else if(key1 > key2)
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{
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return 1;
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}
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else
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{
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return 0;
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}
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}
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/*
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* initialize the rb tree
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*/
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int mca_mpool_base_tree_init(void) {
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int rc;
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OBJ_CONSTRUCT(&mca_mpool_base_tree, ompi_rb_tree_t);
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OBJ_CONSTRUCT(&mca_mpool_base_tree_item_free_list, ompi_free_list_t);
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rc = ompi_free_list_init(&mca_mpool_base_tree_item_free_list, sizeof(mca_mpool_base_tree_item_t),
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OBJ_CLASS(mca_mpool_base_tree_item_t), 0, -1 , 4, NULL);
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if(OMPI_SUCCESS == rc) {
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rc = ompi_rb_tree_init(&mca_mpool_base_tree, mca_mpool_base_tree_node_compare);
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}
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return rc;
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}
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/*
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* insert an item in the rb tree
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*/
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int mca_mpool_base_tree_insert(mca_mpool_base_tree_item_t* item) {
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return ompi_rb_tree_insert(&mca_mpool_base_tree, item->key, item);
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}
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/*
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* remove an item from the rb tree
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*/
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int mca_mpool_base_tree_delete(mca_mpool_base_tree_item_t* item) {
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int rc;
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rc = ompi_rb_tree_delete(&mca_mpool_base_tree, item->key);
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if(OMPI_SUCCESS == rc) {
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mca_mpool_base_tree_item_put(item);
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}
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return rc;
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}
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/**
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* find the item in the rb tree
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*/
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mca_mpool_base_tree_item_t* mca_mpool_base_tree_find(void* base) {
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return (mca_mpool_base_tree_item_t*)ompi_rb_tree_find(&mca_mpool_base_tree, base);
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}
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/*
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* get a tree item from the free list
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*/
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mca_mpool_base_tree_item_t* mca_mpool_base_tree_item_get(void) {
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ompi_free_list_item_t* item = NULL;
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int rc;
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OMPI_FREE_LIST_GET(&mca_mpool_base_tree_item_free_list,
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item,
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rc);
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if(OMPI_SUCCESS == rc) {
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return (mca_mpool_base_tree_item_t*) item;
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} else {
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return NULL;
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}
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}
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/*
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* put an item back into the free list
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*/
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void mca_mpool_base_tree_item_put(mca_mpool_base_tree_item_t* item) {
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OMPI_FREE_LIST_RETURN(&mca_mpool_base_tree_item_free_list,
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&(item->super));
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}
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