Public API Reference

csutil/csevcord.h

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/*
    Copyright (C) 2000 by Jorrit Tyberghein
    Written by Michael Dale Long.

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef __CS_CSEVCORD_H__
#define __CS_CSEVCORD_H__

#include "csextern.h"
#include "csutil/scf_implementation.h"
#include "iutil/event.h"

struct iEventHandler;

class csEventOutlet;

class CS_CRYSTALSPACE_EXPORT csEventCord : 
  public scfImplementation1<csEventCord, iEventCord>
{
protected:
  volatile bool pass;

  csEventID name;

  struct PluginData
  {
    iEventHandler *plugin;
    int priority;
    PluginData *next;
  };

  PluginData *plugins;

  volatile int SpinLock;

  inline void Lock() { while (SpinLock) {} SpinLock++; }
  inline void Unlock() { SpinLock--; }

  friend class csEventOutlet;
  bool Post(iEvent*);

public:
  csEventCord(csEventID, bool=false);

  virtual ~csEventCord();

  virtual int Insert(iEventHandler*, int priority);

  virtual void Remove(iEventHandler*);

  virtual bool GetPass() const { return pass; }

  virtual void SetPass(bool flag) { pass = flag; }

  virtual csEventID GetName() const { return name; }
};

#endif // __CS_CSEVCORD_H__

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