If Frysk is already running, running Frysk again should simply raise the current invocation instead of starting a new running session.
2006-06-27 Mike Cvet <mcvet@redhat.com> * Gui.java (gui): Added functionality for creating and looking for lockfiles in ~/.frysk to show that frysk is already running. If the lock exists, and belongs to a currently-running instance, bring up the current instance and exit. Fixes #2857. (importPreferences): Removed directory check, redundant from the lockfile checking. (MultipleInvocationEvent): Added - signals for multiple startups. (InterruptEvent): Added - exit cleanly after an interrupt.