From: dirk@kulcs.UUCP
Subject: Interactive I/O in real-time Ada applications
Date: Tue, 10-Mar-87 11:50:47 EST [thread overview]
Date: Tue Mar 10 11:50:47 1987
Message-ID: <666@kulcs.UUCP> (raw)
The following is probably only of interest to users of the Verdix Ada
Development System (VADS) on a Unix system.
We are developing a real-time application in Ada (using tasking). One
of the tasks implements a low-level interface with the user, and is
basicly a loop with a get_line on standard input.
When standard input is redirected, there are no problems. When the
input is given interactively, we have the impression that the get_line
operation slows down the other tasks. This may be unacceptable for some
applications. (Wasn't Ada developed for programming real-time embedded
systems? :-).
Has anyone encountered the same problem, and found a solution? If so,
we are very interested if you could mail it to us. Thanks in advance.
We are using the Verdix Ada Development System (Version 5.1b) on a DEC
MicroVAX II running Ultrix-32m V1.1. All tasks in an Ada program run
within one Unix process.
+----------------------------------------------------------------------+
| Dirk Craeynest | Katholieke Universiteit Leuven |
| uucp: ...!mcvax!prlb2!kulcs!dirk | Department of Computer Science |
| or dirk@kulcs.UUCP | Celestijnenlaan 200 A |
| phone: +(32) 16-200656 x3555 | B-3030 Leuven (Heverlee), Belgium |
+----------------------------------------------------------------------+
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