User`s guide

5: BSC 2780/3780 DLI Functions
DC 900-1340I 109
The asyncIO DLI configuration parameter specifies whether an application session uses
blocking or non-blocking I/O. The
alwaysQIO DLI configuration parameter further
qualifies the operation of non-blocking I/O activity. Refer to the Freeway Data Link
Interface Reference Guide for more information.
The effects on different DLI functions, resulting from the choice of blocking or non-
blocking I/O, are explained in the Freeway Data Link Interface Reference Guide and
throughout this chapter as they relate to BSC 2780/3780.
5.1.4 Buffer Management
Currently the interrelated Freeway, DLI, TSI and ICP buffers default to a size of 1024
bytes.
Caution
If you need to change a buffer size for your application, refer to the
Freeway Data Link Interface Reference Guide for explanations of the
complexities that you must consider.