xdrtable.c

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/*!
   \file lib/db/dbmi_base/xdrtable.c
 
   \brief DBMI Library (base) - external data representation (table)
 
   (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 <grass/glocale.h>
#include "macros.h"
 
/*!
   \brief Send table definition
 
   \param table pointer to dbTable
 
   \return
 */
int db__send_table_definition(dbTable *table)
{
    int i;
 
    DB_SEND_INT(table->numColumns);
 
    for (i = 0; i < table->numColumns; i++) {
        DB_SEND_COLUMN_DEFINITION(&table->columns[i]);
    }
    DB_SEND_STRING(&table->tableName);
    DB_SEND_STRING(&table->description);
 
    DB_SEND_INT(table->priv_insert);
    DB_SEND_INT(table->priv_delete);
 
    return DB_OK;
}
 
/*!
   \brief Receive table definition
 
   \param[out] table
 
   \return
 */
int db__recv_table_definition(dbTable **table)
{
    int i, ncols;
    dbTable *t;
 
    DB_RECV_INT(&ncols);
 
    *table = t = db_alloc_table(ncols);
    if (t == NULL)
        return db_get_error_code();
 
    for (i = 0; i < t->numColumns; i++) {
        DB_RECV_COLUMN_DEFINITION(&t->columns[i]);
    }
    DB_RECV_STRING(&t->tableName);
    DB_RECV_STRING(&t->description);
 
    DB_RECV_INT(&t->priv_insert);
    DB_RECV_INT(&t->priv_delete);
 
    return DB_OK;
}
 
/*!
   \brief Send table data
 
   \param table
 
   \return
 */
int db__send_table_data(dbTable *table)
{
    int i, ncols;
 
    ncols = table->numColumns;
    DB_SEND_INT(ncols);
    for (i = 0; i < ncols; i++) {
        DB_SEND_COLUMN_VALUE(db_get_table_column(table, i));
    }
 
    return DB_OK;
}
 
/*!
   \brief Receive table data
 
   \param table
 
   \return
 */
int db__recv_table_data(dbTable *table)
{
    int i, ncols;
 
    ncols = table->numColumns;
    DB_RECV_INT(&i);
 
    if (i != ncols) {
        db_error(_("fetch: table has wrong number of columns"));
        return DB_FAILED;
    }
    for (i = 0; i < ncols; i++) {
        DB_RECV_COLUMN_VALUE(db_get_table_column(table, i));
    }
 
    return DB_OK;
}