xdrvalue.c

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/*!
   \file lib/db/dbmi_base/xdrvalue.c
 
   \brief DBMI Library (base) - external data representation (value)
 
   (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 value
 
   \param value
   \param Ctype
 
   \return
 */
int db__send_value(dbValue *value, int Ctype)
{
    DB_SEND_CHAR(value->isNull);
    if (value->isNull)
        return DB_OK;
 
    switch (Ctype) {
    case DB_C_TYPE_INT:
        DB_SEND_INT(value->i);
        break;
    case DB_C_TYPE_DOUBLE:
        DB_SEND_DOUBLE(value->d);
        break;
    case DB_C_TYPE_STRING:
        DB_SEND_STRING(&value->s);
        break;
    case DB_C_TYPE_DATETIME:
        DB_SEND_DATETIME(&value->t);
        break;
    default:
        db_error("send data: invalid C-type");
        return DB_FAILED;
    }
    return DB_OK;
}
 
/*!
   \brief Receive value
 
   \param value
   \param Ctype
 
   \return
 */
int db__recv_value(dbValue *value, int Ctype)
{
    DB_RECV_CHAR(&value->isNull);
    if (value->isNull)
        return DB_OK;
 
    switch (Ctype) {
    case DB_C_TYPE_INT:
        DB_RECV_INT(&value->i);
        break;
    case DB_C_TYPE_DOUBLE:
        DB_RECV_DOUBLE(&value->d);
        break;
    case DB_C_TYPE_STRING:
        DB_RECV_STRING(&value->s);
        break;
    case DB_C_TYPE_DATETIME:
        DB_RECV_DATETIME(&value->t);
        break;
    default:
        db_error(_("send data: invalid C-type"));
        return DB_FAILED;
    }
    return DB_OK;
}