GDNC(1) GNUstep System Manual GDNC(1)NAME
gdnc - GNUstep Distributed Notification Center
SYNOPSIS
gdnc
DESCRIPTION
The gdnc daemon is used by GNUstep programs to send notifications and messages to one another. By default it uses private inter-process
communications accessible only to the curtrent user on the machine on which it is running (where the operating system supports them).
Every user needs to have his own instance of gdnc running. While gdnc will be started automatically as soon as it is needed, it is recom-
mended to start gdnc in a personal login script like ~/.bashrc or ~/.cshrc. Alternatively (if you have no command-line tools which use
distributed notifications) you can launch gdnc when your windowing system or the window manager is started. For example, on systems with
X11 you can launch gdnc from your .xinitrc script or alternatively - if you are running Window Maker - put it in Window Maker's autostart
script. See the GNUstep Build Guide for a sample startup script.
OPTIONS
To attach gdnc to a remote session use the
-NSHost hostname
argument.
To run a copy of the server to handle public notifications (available to all users on the local machine)
-GSPublic YES
To run a copy of the server to handle network-public notifications (available to all users able to connect to the local machine on the net-
work)
-GSNetwork YES
DIAGNOSTICS
gdomap -L GDNCServer will lookup instances of gdnc which were launched with the NSHost, GSPublic, or GSNetwork command line arguments.
Alternatively, gdomap -N will list all registered names on the local host.
SEE ALSO gdomap(8), GNUstep(7), gpbs(1)
The GNUstep Build Guide example startup script: <http://gnustep.made-it.com/BuildGuide/index.html#GNUSTEP.SERVICES>
HISTORY
Work on gdnc started October 1998.
This manual page first appeared in gnustep-base 1.7.2 (July 2003).
AUTHORS
gdnc was written by Richard Frith-Macdonald <rfm@gnu.org>.
This man page was written by Martin Brecher <martin@mb-itconsulting.com>.
GNUstep August 2003 GDNC(1)
Check Out this Related Man Page
GNUstep(7) GNUstep System Manual GNUstep(7)NAME
GNUstep - A free implementation of the OpenStep standard
DESCRIPTION
GNUstep provides an Object-Oriented application development framework and toolset for use on a wide variety of computer platforms. GNUstep
is based on the original OpenStep specification provided by NeXT, Inc. (now Apple).
GNUstep is written in Objective-C, an object-oriented superset of the C programming language, similar to SmallTalk. However there exist a
number of brigdes and interfaces to develop GNUstep programs using other languages like JAVA or Ruby.
The GNUstep core system consists of the following parts, which are jointly refered to as gnustep-core :
gnustep-make
A set of scripts and makefiles that heavily ease the creation and maintenance of software projects.
gnustep-base
The FoundationKit libraries for non-GUI tools providing everything from string and array classes, filemanager classes to distributed
objects.
gnustep-gui
The ApplicationKit containing widgets, workspace classes and means for applications to interact with the user. This is the frontend
of GNUstep's GUI part.
gnustep-back
This is the backend of GNUstep's GUI part which does the actual rendering and event handling. It acts as a layer between gnustep-gui
and the operating/drawing system. Backends exist for X11 (one using cairo, one using libart, one using xlib drawing) and win32.
Apart from the above, there exist a number of addon libraries, like Renaissance which allows developers to specify an application's user
interface in xml. For database access, there is GDL2 - the GNUstep Database Library. Please refer to the GNUstep website for more informa-
tion.
GNUstep per default is self-contained. That means that all GNUstep applications, tools, libraries and add-ons are installed into the
GNUstep directory hierarchy. However as of gnustep-make-2.0.0 it is also possible to install everything in compliance with other filesystem
hierarchies. See the FilesystemLayouts directory in the source package of gnustep-make for more information.
There are four domains which are searched for files: the System domain, which should only contain the core system files, the Local domain
which stores all that has later been installed on the system, the Network domain which should be used for importing data from a remote sys-
tem, and the User domain which resides in the user's home directory (mostly ~/GNUstep).
A complete description of the default GNUstep layout can be found in the filesystem.pdf.
TOOLS AND APPLICATIONS
In the world of GNUstep the term tool refers to command line programs whereas applications are fully fledged GUI programs. Naturally,
tools reside in the domains' Tools folder, applications can be found in the domains' Applications folder.
Applications are either launched using the openapp command or from the Workspace.
SERVICES
In GNUstep applications globally offer functionality to other applications through services. They can be reached through the Services menu
entry in an application's main menu. Apart from services offered by applications, there may be programs whose sole purpose is the offering
of services. They can be found in the domains' Libary/Services folders.
The make_services tool makes sure the services are known to other applications when a application is newly installed.
BUNDLES
A bundle is a collection of resources making up a discrete package for use. There are currently three types of bundles: applications,
frameworks and loadable bundles.
A loadable bundle is a kind of plug-in. There are two types of loadable bundles, namely plug-ins and palettes. The plug-in is noramlly ref-
ered to as a bundle, which can make it a bit confusing. A plug-in is a bundle that can be loaded by an application to provide additional
functionality, while a palette is a plug-in for GORM, the interface builder. A palette is used to extend GORM with custom UI objects. Pal-
ettes have a .palette extension.
THE WORKSPACE
The central place of the user interface is the Workspace or Workspace Manager which acts as an interface between the user and parts of the
system like files, processes, etc. The GWorkspace application provides this functionality in GNUstep. See the GWorkspace website for more
details.
DEVELOPER APPLICATIONS
What would a development environment be without the applications to create applications? The applications provided by GNUstep for Rapid
Application Developement are:
GORM GORM is the interface modeler. With GORM you can quickly create the graphical interface of your application.
Project Center
Project Center is the program where you can develop your program. It offers you automatic generation of GNUmakefiles , project main-
tenance and of course a code editor.
SEE ALSO gcc(1), gdnc(1), gdomap(8), gopen(1), gpbs(1), make(1), openapp(1)
GNUstep Websites:
http://www.gnustep.org/
Official GNUstep website
http://wiki.gnustep.org/
GNUstep Wiki (lots of useful information)
http://savannah.gnu.org/projects/gnustep/
GNUstep Project Page
http://gnustep.made-it.com/
GNUstep Documentation Library
http://www.collaboration-world.com
Collaboration World, the home of GNUmail
http://www.gnustep.it/
The home of GWorkspace, JIGS, Renaissance and programming tutorials.
Mailinglists
http://www.gnustep.org/information/gethelp.html
Mailing lists and mailing list archives.
IRC
#GNUstep on FreeNode
You are invited to join the #GNUstep IRC channel on FreeNode (irc.freenode.net).
HISTORY
GNUstep was at first a collaboration of two projects that wanted to create a single GNUstep project that complied to the OpenStep specifi-
cation provided by NeXT Computer, Inc. and SunSoft, Inc. Development of this joint effort started around 1993-1994. For a more detailed
history description see the GNUstep Documentation Library referenced in the SEE ALSO section.
GNUstep is developed and maintained by a large number of people. Please see <http://www.gnustep.org/developers/whoiswho.html> for a list.
AUTHORS
This man-page was first written by Martin Brecher <martin@mb-itconsulting.com> in august of 2003.
In December 2007 it was expanded by Dennis Leeuw <dleeuw@made-it.com> and made to comply with the gnustep-make-2.0.x releases.
gnustep-core 15/12/2007 GNUstep(7)