GDSX (Extended General Device Support) Manual

Service Routines
Extended General Device Support (GDSX) Manual—529931-001
8-72
^SERVERCLASS_DIALOG_END_
^SERVERCLASS_DIALOG_END_
The ^SERVERCLASS_DIALOG_END_ pseudo context-sensitive Pathway procedure
allows USCODE to end a dialog initiated by a previous call to the
^SERVERCLASS_DIALOG_BEGIN_ procedure.
The syntax, condition code settings, and considerations regarding this procedure are
the same as given for the Pathway SERVERCLASS_DIALOG_END_ procedure in the
NonStop TS/MP Pathsend and Server Programming Manual.
^SERVERCLASS_DIALOG_SEND_
The ^SERVERCLASS_DIALOG_SEND_ pseudo context-sensitive Pathway procedure
allows USCODE to communicate directly with server classes in a context-sensitive
manner.
Except for the following considerations, the syntax, condition code settings, and
considerations regarding this procedure are the same as given for the Pathway
SERVERCLASS_DIALOG_SEND_ procedure in the NonStop TS/MP Pathsend and
Server Programming Manual.
Considerations
•
Because the working stack images of tasks are swapped to and from an extended
data segment during I/O operations, the I/O must be performed to and from
extended buffers.
•
When calling the ^SERVERCLASS_DIALOG_SEND_ procedure in the waited
mode, processing is returned to the calling USCODE after a reply is received from
the server. This calling method causes all user tasks to wait until a reply is
received.
•
When calling the ^SERVERCLASS_DIALOG_SEND_ procedure in the nowaited
mode with the PROCNOWAIT configuration parameter set to 0, TSCODE calls
^AWAITIOX to complete the I/O, waits for the reply, and then sends the reply to the
user task. Only the user task that called the ^SERVERCLASS_DIALOG_SEND_
procedure waits for the reply. All other user tasks continue processing.
•
When calling the ^SERVERCLASS_DIALOG_SEND_ in the nowaited mode with
the PROCNOWAIT configuration parameter set to 1, USCODE must call
^AWAITIOX instead of ^AWAITIO to complete the I/O. Do not use WAIT^EVENT
and ^LISTEN to complete the I/O.
Calling ^SERVERCLASS_DIALOG_SEND_ in the nowaited mode allows
USCODE to continue processing while ^SERVERCLASS_DIALOG_SEND_ is
executing.
•
A trace record is written before and after a successful call to
^SERVERCLASS_DIALOG_SEND_ if bit 3 of trace^control^flags in DCCBDECS is
set to 1. The trace records contain the calling task number, PATHMON name,