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/**
* Copyright (C) 2009-2010 Michael 'Mickey' Lauer <mlauer@vanille-media.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/**
* @class FsoFramework.AbstractWorkerQueue
**/
public abstract interface FsoFramework.AbstractWorkerQueue<T> : GLib.Object
{
public delegate void WorkerFunc( T element );
public abstract void setDelegate( WorkerFunc worker );
public abstract void enqueue( T element );
public abstract void trigger();
}
/**
* @class FsoFramework.AsyncWorkerQueue
**/
public class FsoFramework.AsyncWorkerQueue<T> : FsoFramework.AbstractWorkerQueue<T>, GLib.Object
{
protected GLib.Queue<T> q;
protected AbstractWorkerQueue.WorkerFunc worker;
uint watch;
protected bool _onIdle()
{
assert( worker != null );
worker( q.pop_tail() );
watch = 0;
return false; // don't call again
}
construct
{
q = new GLib.Queue<T>();
}
public void setDelegate( AbstractWorkerQueue.WorkerFunc worker )
{
this.worker = worker;
trigger();
}
public void enqueue( T element )
{
var retrigger = ( q.length == 0 );
q.push_head( element );
if ( retrigger && worker != null )
trigger();
}
public void trigger()
{
assert( q.length > 0 );
assert( worker != null );
watch = GLib.Idle.add( _onIdle );
}
}
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