GRASS Programmer's Manual  6.4.1(2011)
d_openselect.c
Go to the documentation of this file.
00001 
00015 #include <stdlib.h>
00016 #include <grass/dbmi.h>
00017 #include "macros.h"
00018 #include "dbstubs.h"
00019 
00026 int db_d_open_select_cursor(void)
00027 {
00028     dbCursor *cursor;
00029     int stat;
00030     dbToken token;
00031     dbString select;
00032     int mode;
00033 
00034     /* get the arg(s) */
00035     db_init_string(&select);
00036     DB_RECV_STRING(&select);
00037     DB_RECV_INT(&mode);
00038 
00039     /* create a cursor */
00040     cursor = (dbCursor *) db_malloc(sizeof(dbCursor));
00041     if (cursor == NULL)
00042         return db_get_error_code();
00043     token = db_new_token((dbAddress) cursor);
00044     if (token < 0)
00045         return db_get_error_code();
00046     db_init_cursor(cursor);
00047 
00048     /* call the procedure */
00049     stat = db_driver_open_select_cursor(&select, cursor, mode);
00050     db_free_string(&select);
00051 
00052     /* send the return code */
00053     if (stat != DB_OK) {
00054         DB_SEND_FAILURE();
00055         return DB_OK;
00056     }
00057     DB_SEND_SUCCESS();
00058 
00059     /* mark this as a readonly cursor */
00060     db_set_cursor_type_readonly(cursor);
00061 
00062     /* add this cursor to the cursors managed by the driver state */
00063     db__add_cursor_to_driver_state(cursor);
00064 
00065     /* results */
00066     DB_SEND_TOKEN(&token);
00067     DB_SEND_INT(cursor->type);
00068     DB_SEND_INT(cursor->mode);
00069     DB_SEND_TABLE_DEFINITION(cursor->table);
00070     return DB_OK;
00071 }
 All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Defines