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Left Hand Pointer

ASTART

Draft MDC Standard

Right Hand Pointer

8.2.3 ASTArt

ASTA[RT] postcond

[ SP ]
SP ablockargument


Editor's note:
The above definition allows for at most one ablockargument.
Should it not be:
    ASTA[RT] postcond

[ SP ]
SP L ablockargument


ASTArt enables asynchronous event processing for all or selected event classes. The three forms of ASTArt are given the following names:

   a) L evclass Selective ASTArt
b) (L evclass) Exclusive ASTArt
c) Empty argument list: ASTArt All

In the Selective ASTArt, the named event classes are enabled for asynchronous event processing as described below. In the Exclusive ASTArt, all event classes except the named event classes are enabled for asynchronous event processing as described below. In the ASTArt All, all event classes are enabled for asynchronous event processing as described below.

If any of the classes being enabled for asynchronous event processing are currently enabled for synchronous event processing an error occurs with an ecode = "M102".

Event classes are enabled by ASTArt only for the process executing the ASTArt command. It is not an error to enable an event class which is already enabled for the asynchronous model.

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Copyright © Standard Documents; 1977-2017 MUMPS Development Committee;
Copyright © Examples: 1995-2017 Ed de Moel;
Copyright © Annotations: 2003-2017 Jacquard Systems Research.

Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.

This page most recently updated on 13-Sep-2014, 18:05:44 .

For comments, contact Ed de Moel (demoel@jacquardsystems.com)