Andrzej Kapolka
f5fc8f9d2a
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3223 542714f4-19e9-0310-aa3c-eee0fc999fb1
77 lines
2.6 KiB
Java
77 lines
2.6 KiB
Java
//
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// $Id$
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
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// http://www.threerings.net/code/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.presents.server.util;
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import com.samskivert.util.Interval;
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import com.threerings.presents.server.PresentsDObjectMgr;
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/**
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* Used in conjunction with the {@link PresentsDObjectMgr}, this class
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* provides a means by which code can be run on the dobjmgr thread at some
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* point in the future, either as a recurring interval or as a one shot
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* deal. The code is built on top of the {@link IntervalManager} services.
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*
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* <p> A {@link SafeInterval} instance should be created and then
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* scheduled to run using the {@link IntervalManager}. For example:
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*
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* <pre>
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* IntervalManager.register(new SafeInterval(_omgr) {
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* public void run () {
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* System.out.println("Foo!");
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* }
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* }, 25L * 1000L, null, false);
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* </pre>
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*/
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public abstract class SafeInterval
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implements Runnable, Interval
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{
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/**
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* Creates a safe interval instance that will queue itself up for
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* execution on the supplied dobjmgr when it expires.
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*/
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public SafeInterval (PresentsDObjectMgr omgr)
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{
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_omgr = omgr;
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}
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/**
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* Called (on the dobjmgr thread) when the interval period has
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* expired. If this is a recurring interval, this method will be
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* called each time the interval expires.
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*/
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public abstract void run ();
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/** Handles the proper scheduling and queueing. */
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public void intervalExpired (int id, Object arg)
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{
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_iid = id;
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_omgr.postUnit(this);
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}
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/** The dobjmgr on which we queue ourselves when we expire. */
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protected PresentsDObjectMgr _omgr;
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/** Configured with our current interval id when we are triggered. */
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protected int _iid;
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}
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