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From: bilbo@s3.ireq.hydro.qc.ca
Newsgroups: comp.lang.c++
Subject: Re: task lib for Zortech
Message-ID: <1176@s3.ireq.hydro.qc.ca>
Date: 8 May 90 14:54:16 GMT
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Sender: root@s3.ireq.hydro.qc.ca
Reply-To: bilbo@s3.ireq.hydro.qc.ca ()
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We have a new C++ real-time executive available as a hierarchy of
classes for object-oriented software development. The Interactors (tm)
executive was developped with Zortech C++ V2.0. Interactors is a
ROM-able source library.


Interactors provides facilities for naturally expressing inter-process
synchronization, communication, and computation. An action-oriented
model provides a general framework, rather than a pre-defined set of
built-in primitives. This extensibility is provided by joint actions,
accomplished by cooperating sequential processes, over shared
interactions. Interactions allow to derive the usual services found in
operating systems, such as buffered, and unbuffered channels.
Interactions are fully user-definable, and allow mutual control between
processes.

It includes interrupt-driven preemption, general purpose multiparty
interaction mechanism, and selective waiting. A comprehensive set of
race controls allows to customize scheduling using dynamic priority,
select preference, and forerunner control.

The built-in facilities include:
    -- lists and queues
    -- circular buffers
    -- threads
    -- processes
    -- interrupt service processes and interrupt controller management
    -- real-time clock and time managemennt
    -- interrupt locks
    -- binary and counting semaphores
    -- critical regions
    -- unbuffered channels
    -- buffered channels
    -- memory pools manager
    -- concurrent reading and writing
    -- process termination

Interactors can execute in a small hardware configuration, for which the
library can be adapted by the user.

Application-level objects are statically or dynamically created using
C++ declarations and function calls, without using configuration tables.
Interactors is configured for Zortech C++ version 2.0, and is compatible
with the C++ source-level debugger.

For more information contact us my mail or e-mail.


-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-
| Objective: Systems       |        Louis Lamarche
| CP 265, Ville Mont-Royal |        bilbo@ireq.hydro.qc.ca
| QC, Canada, H3P 3C5      |