xdrindex.c

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/*!
   \file lib/db/dbmi_base/xdrindex.c
 
   \brief DBMI Library (base) - external data representation (index)
 
   (C) 1999-2009, 2011 by the GRASS Development Team
 
   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.
 
   \author Joel Jones (CERL/UIUC), Radim Blazek, Brad Douglas, Markus Neteler
   \author Doxygenized by Martin Landa <landa.martin gmail.com> (2011)
 */
 
#include <grass/dbmi.h>
#include "macros.h"
 
/*!
   \brief Send index
 
   \param index
 
   \return
 */
int db__send_index(dbIndex *index)
{
    int i;
 
    DB_SEND_STRING(&index->indexName);
    DB_SEND_STRING(&index->tableName);
    DB_SEND_CHAR(index->unique);
 
    DB_SEND_INT(index->numColumns);
 
    for (i = 0; i < index->numColumns; i++) {
        DB_SEND_STRING(&index->columnNames[i]);
    }
 
    return DB_OK;
}
 
/*!
   \brief Send index array
 
   \param list
   \param count
 
   \return
 */
int db__send_index_array(dbIndex *list, int count)
{
    int i;
 
    DB_SEND_INT(count);
    for (i = 0; i < count; i++) {
        DB_SEND_INDEX(&list[i]);
    }
    return DB_OK;
}
 
/*!
   \brief Receive index
 
   \param index
 
   \return
 */
int db__recv_index(dbIndex *index)
{
    int i, ncols;
 
    db_init_index(index);
    DB_RECV_STRING(&index->indexName);
    DB_RECV_STRING(&index->tableName);
    DB_RECV_CHAR(&index->unique);
 
    DB_RECV_INT(&ncols);
 
    if (db_alloc_index_columns(index, ncols) != DB_OK)
        return db_get_error_code();
 
    for (i = 0; i < ncols; i++) {
        DB_RECV_STRING(&index->columnNames[i]);
    }
 
    return DB_OK;
}
 
/*!
   \brief Receive index array
 
   \param list
   \param count
 */
int db__recv_index_array(dbIndex **list, int *count)
{
    int i;
 
    DB_RECV_INT(count);
 
    *list = db_alloc_index_array(*count);
    if (*list == NULL)
        return db_get_error_code();
 
    for (i = 0; i < *count; i++) {
        DB_RECV_INDEX(&((*list)[i]));
    }
 
    return DB_OK;
}