/*!
\brief Open select cursor
\return DB_OK on success
\return DB_FAILED on failure
*/
int db_d_open_select_cursor(void)
{
dbCursor *cursor;
int stat;
dbToken token;
dbString select;
int mode;
/* get the arg(s) */
db_init_string(&select);
DB_RECV_STRING(&select);
DB_RECV_INT(&mode);
/* create a cursor */
cursor = (dbCursor *) db_malloc(sizeof(dbCursor));
if (cursor == NULL)
return db_get_error_code();
token = db_new_token((dbAddress) cursor);
if (token < 0)
return db_get_error_code();
db_init_cursor(cursor);
/* call the procedure */
stat = db_driver_open_select_cursor(&select, cursor, mode);
db_free_string(&select);
/* send the return code */
if (stat != DB_OK) {
DB_SEND_FAILURE();
return DB_OK;
}
DB_SEND_SUCCESS();
/* mark this as a readonly cursor */
db_set_cursor_type_readonly(cursor);
/* add this cursor to the cursors managed by the driver state */
db__add_cursor_to_driver_state(cursor);
/* results */
DB_SEND_TOKEN(&token);
DB_SEND_INT(cursor->type);
DB_SEND_INT(cursor->mode);
DB_SEND_TABLE_DEFINITION(cursor->table);
return DB_OK;
}
/*!
\brief Set column name
\param index pointer to dbIndex
\param column_num column number
\param name name to be set
\return DB_OK on success
\return DB_FAILED on error
*/
int db_set_index_column_name(dbIndex * index, int column_num, const char *name)
{
if (column_num < 0 || column_num >= index->numColumns) {
db_error(_("db_set_index_column_name(): invalid column number"));
return db_get_error_code();
}
return db_set_string(&index->columnNames[column_num], name);
}
/*!
\brief Allocate index columns
\param index pointer to dbIndex
\param ncols number of columns to be allocated
\return DB_OK
*/
int db_alloc_index_columns(dbIndex * index, int ncols)
{
index->columnNames = db_alloc_string_array(ncols);
if (index->columnNames == NULL)
return db_get_error_code();
index->numColumns = ncols;
return DB_OK;
}
int db__recv_index_array(dbIndex ** list, int *count)
{
int i;
DB_RECV_INT(count);
*list = db_alloc_index_array(*count);
if (*list == NULL)
return db_get_error_code();
for (i = 0; i < *count; i++) {
DB_RECV_INDEX(&((*list)[i]));
}
return DB_OK;
}
int db__recv_index(dbIndex * index)
{
int i, ncols;
db_init_index(index);
DB_RECV_STRING(&index->indexName);
DB_RECV_STRING(&index->tableName);
DB_RECV_CHAR(&index->unique);
DB_RECV_INT(&ncols);
if (db_alloc_index_columns(index, ncols) != DB_OK)
return db_get_error_code();
for (i = 0; i < ncols; i++) {
DB_RECV_STRING(&index->columnNames[i]);
}
return DB_OK;
}
/*!
\brief Receive table definition
\param[out] table
\return
*/
int db__recv_table_definition(dbTable ** table)
{
int i, ncols;
dbTable *t;
DB_RECV_INT(&ncols);
*table = t = db_alloc_table(ncols);
if (t == NULL)
return db_get_error_code();
for (i = 0; i < t->numColumns; i++) {
DB_RECV_COLUMN_DEFINITION(&t->columns[i]);
}
DB_RECV_STRING(&t->tableName);
DB_RECV_STRING(&t->description);
DB_RECV_INT(&t->priv_insert);
DB_RECV_INT(&t->priv_delete);
return DB_OK;
}
