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00001 /* 00002 Copyright (C) 2000 by Jorrit Tyberghein 00003 Written by Michael Dale Long. 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Library General Public 00007 License as published by the Free Software Foundation; either 00008 version 2 of the License, or (at your option) any later version. 00009 00010 This library is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 Library General Public License for more details. 00014 00015 You should have received a copy of the GNU Library General Public 00016 License along with this library; if not, write to the Free 00017 Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00018 */ 00019 00020 #ifndef __CS_CSEVCORD_H__ 00021 #define __CS_CSEVCORD_H__ 00022 00023 #include "csutil/scf.h" 00024 #include "iutil/event.h" 00025 struct iEventHandler; 00026 class csEventOutlet; 00027 00031 class csEventCord : public iEventCord 00032 { 00033 protected: 00035 volatile bool pass; 00036 00038 int category, subcategory; 00039 00041 struct PluginData 00042 { 00043 iEventHandler *plugin; 00044 int priority; 00045 PluginData *next; 00046 }; 00047 00049 PluginData *plugins; 00050 00052 volatile int SpinLock; 00053 00055 inline void Lock() { while (SpinLock) {} SpinLock++; } 00057 inline void Unlock() { SpinLock--; } 00058 00060 friend class csEventOutlet; 00061 bool Post(iEvent*); 00062 00063 public: 00064 SCF_DECLARE_IBASE; 00065 00067 csEventCord(int category, int subcategory); 00068 00070 virtual int Insert(iEventHandler*, int priority); 00071 00073 virtual void Remove(iEventHandler*); 00074 00076 virtual bool GetPass() const { return pass; } 00077 00079 virtual void SetPass(bool flag) { pass = flag; } 00080 00082 virtual int GetCategory() const { return category; } 00083 00085 virtual int GetSubcategory() const { return subcategory; } 00086 }; 00087 00088 #endif // __CS_CSEVCORD_H__