File: hdiff_table.c

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF.  The full HDF copyright notice, including       *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF/releases/.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "hdiff_table.h"

/*-------------------------------------------------------------------------
 * Function: dtable_search
 *
 * Purpose: search the table for tag and ref
 *
 * Return: index on success, -1 on failure
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: July 3, 2003
 *
 *-------------------------------------------------------------------------
 */

int
dtable_search(dtable_t *table, int32 tag, int32 ref)
{
    uint32 i;

    for (i = 0; i < table->nobjs; i++)
        if (table->objs[i].tag == tag && table->objs[i].ref == ref)
            return i;

    return -1;
}

/*-------------------------------------------------------------------------
 * Function: dtable_add
 *
 * Purpose: add pair tag/ref and object path to table
 *
 * Return: void
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: July 3, 2003
 *
 *-------------------------------------------------------------------------
 */

void
dtable_add(dtable_t *table, int32 tag, int32 ref, char *path)
{
    uint32 i;

    if (table->nobjs == table->size) {
        table->size *= 2;
        table->objs = (dobj_info_t *)realloc(table->objs, table->size * sizeof(dobj_info_t));

        for (i = table->nobjs; i < table->size; i++) {
            table->objs[i].tag = table->objs[i].ref = -1;
            table->objs[i].flags[0] = table->objs[i].flags[1] = -1;
        }
    }

    i                  = table->nobjs++;
    table->objs[i].tag = tag;
    table->objs[i].ref = ref;
    strcpy(table->objs[i].obj_name, path);
    table->objs[i].flags[0] = table->objs[i].flags[1] = -1;
}

/*-------------------------------------------------------------------------
 * Function: dtable_init
 *
 * Purpose: initialize table
 *
 * Return: void
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: July 3, 2003
 *
 *-------------------------------------------------------------------------
 */

void
dtable_init(dtable_t **tbl)
{
    uint32    i;
    dtable_t *table = (dtable_t *)malloc(sizeof(dtable_t));

    table->size  = 20;
    table->nobjs = 0;
    table->objs  = (dobj_info_t *)malloc(table->size * sizeof(dobj_info_t));

    for (i = 0; i < table->size; i++) {
        table->objs[i].tag = table->objs[i].ref = -1;
        table->objs[i].flags[0] = table->objs[i].flags[1] = -1;
    }

    *tbl = table;
}

/*-------------------------------------------------------------------------
 * Function: dtable_free
 *
 * Purpose: free table memory
 *
 * Return: void
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: July 3, 2003
 *
 *-------------------------------------------------------------------------
 */

void
dtable_free(dtable_t *table)
{
    free(table->objs);
    free(table);
}

/*-------------------------------------------------------------------------
 * Function: dtable_print
 *
 * Purpose: print object list
 *
 * Return: void
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: August 25, 2003
 *
 *-------------------------------------------------------------------------
 */

void
dtable_print(dtable_t *table, char *header)
{
    uint32 i;

    if (!table->nobjs) /* nothing to do */
        return;

    printf("---------------------------------------\n");
    printf("%s %5s %6s    %-15s\n", header, "Tag", "Ref", "Name");
    printf("---------------------------------------\n");

    for (i = 0; i < table->nobjs; i++) {
        printf("       %5d %6d    %-15s\n", table->objs[i].tag, table->objs[i].ref, table->objs[i].obj_name);
    }
}