GRASS Programmer's Manual
6.4.1(2011)
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00001 00015 #include <grass/dbmi.h> 00016 #include "macros.h" 00017 00026 int db_get_num_rows(dbCursor * cursor) 00027 { 00028 int nrows, ret_code; 00029 00030 /* start the procedure call */ 00031 db__set_protocol_fds(cursor->driver->send, cursor->driver->recv); 00032 DB_START_PROCEDURE_CALL(DB_PROC_ROWS); 00033 00034 /* send the argument(s) to the procedure */ 00035 DB_SEND_TOKEN(&cursor->token); 00036 00037 /* get the return code for the procedure call */ 00038 DB_RECV_RETURN_CODE(&ret_code); 00039 00040 if (ret_code != DB_OK) 00041 return -1; 00042 00043 /* get the results */ 00044 DB_RECV_INT(&nrows); 00045 00046 return nrows; 00047 }