User`s guide

62 DC 900-1406E

BSCTRAN Programmer’s Guide

3.6 BSCSEND Procedure

Calling Sequence

ReturnCode = BSCSEND (fname, lnum, server, dtime, trans,

binary, card, noteof, display, dak)

Procedures Called

BSCDAS, BSCASL, BSCWRIT, BSCRESET, and BSCFWY

Functions

1. Conﬁgures the DAK node to dak and issues a Flush Queue command to the ICP.

2. Opens the ﬁle (

fname).

3. If there is a change in the server name or ICP device, calls BSCASL to assign input

and output channels.

4. Accumulates ﬁle records one at a time until the buffer contains enough to ﬁll the

write block without splitting records. Inserts appropriate record separator char-

acter (2780 or 3780) between records.

Exceptions

a. If the

binary ﬂag is true, no record separators are inserted, and each record

is sent separately to the ICP.

b. If the

DEFAULT /RECORD option is set for 2780 records, and the trans ﬂag is

true, each record is preceded by a two-byte count, then packed into the

write block without splitting records.

5. Calls BSCWRIT to send the block to link (

lnum) and get ACK from the ICP.

6. Continues sending blocks until error, timeout (

dtime), or end-of-ﬁle is returned.