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/*!
* \file db/dbmi_client/c_fetch.c
*
* \brief DBMI Library (client) - fetch data
*
* (C) 1999-2008 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
*/
#include <grass/dbmi.h>
#include "macros.h"
/*!
\brief Fetch data from open cursor
\param cursor pointer to dbCursor
\param position cursor position
\param[out] more get more (0 for no data to be fetched)
\return DB_OK on success
\return DB_FAILED on failure
*/
int db_fetch(dbCursor *cursor, int position, int *more)
{
int ret_code;
/* start the procedure call */
db__set_protocol_fds(cursor->driver->send, cursor->driver->recv);
DB_START_PROCEDURE_CALL(DB_PROC_FETCH);
/* send the argument(s) to the procedure */
DB_SEND_TOKEN(&cursor->token);
DB_SEND_INT(position);
/* get the return code for the procedure call */
DB_RECV_RETURN_CODE(&ret_code);
if (ret_code != DB_OK)
return ret_code; /* ret_code SHOULD == DB_FAILED */
/* get the results */
DB_RECV_INT(more);
if (*more) {
DB_RECV_TABLE_DATA(cursor->table);
}
return DB_OK;
}
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