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New GNU Package; GNU ccScript

From: David Sugar
Subject: New GNU Package; GNU ccScript
Date: Tue, 9 Oct 2001 21:12:12 -0400 (EDT)

GNU ccScript is a C++ class framework for creating a virtual machine 
execution system for use with and as a scripting/assembler language for 
state-transition driven realtime systems.  The most common example of this
is as the core of the scripting engine found in GNU Bayonne.

GNU ccScript uses a class hierarchy and one extends the ScriptInterp base 
class to create a new dialect localized for a given applications.  One 
then binds script keywords to method calls in the derived class.  This
aspect of GNU ccScript resembles in C++ the process of how one might
localize tcl.

GNU ccScript is intended for use where step execution is important, and 
where each step is in response to a callback event or a state machine 
transition.  It offers deterministic execution and low overhead so that 
many concurrent instances can be running together.

GNU ccScript can execute text files which form the basis of a script 
language.  However, in addition to offering step machine execution, 
GNU ccScript loads all scripts into an active image at once.  This is for 
performance, as all operations in the script system, to assure 
deterministic execution, are in memory.

GNU ccScript also offers the ability to load new scripts in-mass.  
Existing active sessions operate on the currently loaded scripts, and new
sessions are offered the new script.  When the last active session on an 
old script set completes, the entire script set is flushed from memory.  
This enables one to operate scripted servers like GNU Bayonne without
downtime to rebuild script images in memory.

The latest information on GNU ccScript may always be found at  The initial GNU release of ccScript
is 1.7.0, and current releases of this package may be downloaded from or any gnu mirror worldwide.

Those interested in further developing GNU ccScript may join the 
developers mailing list by sending a subscribe request to
address@hidden or by sending email to me directly,
address@hidden  GNU ccScript development and cvs access is hosted thru
Savannah (  Those wishing to contribute should
also make use of Savannah.

reply via email to

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