grass  7.8.6
About: GRASS (Geographic Resources Analysis Support System) is a raster- and vector-based GIS, image processing system, graphics production system and spatial modeling system.
  Fossies Dox: grass-7.8.6.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

c_fetch.c
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1/*!
2 * \file db/dbmi_client/c_fetch.c
3 *
4 * \brief DBMI Library (client) - fetch data
5 *
6 * (C) 1999-2008 by the GRASS Development Team
7 *
8 * This program is free software under the GNU General Public
9 * License (>=v2). Read the file COPYING that comes with GRASS
10 * for details.
11 *
12 * \author Joel Jones (CERL/UIUC), Radim Blazek
13 */
14
15#include <grass/dbmi.h>
16#include "macros.h"
17
18/*!
19 \brief Fetch data from open cursor
20
21 \param cursor pointer to dbCursor
22 \param position cursor position
23 \param[out] more get more (0 for no data to be fetched)
24
25 \return DB_OK on success
26 \return DB_FAILED on failure
27 */
28int db_fetch(dbCursor * cursor, int position, int *more)
29{
30 int ret_code;
31
32 /* start the procedure call */
33 db__set_protocol_fds(cursor->driver->send, cursor->driver->recv);
35
36 /* send the argument(s) to the procedure */
37 DB_SEND_TOKEN(&cursor->token);
38 DB_SEND_INT(position);
39
40 /* get the return code for the procedure call */
41 DB_RECV_RETURN_CODE(&ret_code);
42
43 if (ret_code != DB_OK)
44 return ret_code; /* ret_code SHOULD == DB_FAILED */
45
46 /* get the results */
48 if (*more) {
50 }
51 return DB_OK;
52}
int db_fetch(dbCursor *cursor, int position, int *more)
Fetch data from open cursor.
Definition: c_fetch.c:28
void db__set_protocol_fds(FILE *send, FILE *recv)
?
Definition: xdr.c:75
#define DB_PROC_FETCH
Definition: dbmi.h:39
#define DB_OK
Definition: dbmi.h:71
#define DB_SEND_INT(x)
Definition: macros.h:37
#define DB_RECV_TABLE_DATA(x)
Definition: macros.h:69
#define DB_RECV_INT(x)
Definition: macros.h:39
#define DB_START_PROCEDURE_CALL(x)
Definition: macros.h:2
#define DB_RECV_RETURN_CODE(x)
Definition: macros.h:4
#define DB_SEND_TOKEN(x)
Definition: macros.h:97
static int more(const char **)
Definition: scan.c:477
dbDriver * driver
Definition: dbmi.h:233
dbTable * table
Definition: dbmi.h:234
dbToken token
Definition: dbmi.h:232
FILE * recv
Definition: dbmi.h:171
FILE * send
Definition: dbmi.h:171