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ICBMCookieCache.h

00001 /*
00002  * ICBMCookieCache
00003  *
00004  * Copyright (C) 2001 Barnaby Gray <barnaby@beedesign.co.uk>
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with this library; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
00019  *
00020  */
00021 
00022 #ifndef ICBMCOOKIECACHE_H
00023 #define ICBMCOOKIECACHE_H
00024 
00025 #include <libicq2000/Cache.h>
00026 #include <libicq2000/ICBMCookie.h>
00027 #include <libicq2000/events.h>
00028 
00029 #include <sigc++/signal_system.h>
00030 
00031 using SigC::Signal1;
00032 
00033 namespace ICQ2000 {
00034 
00035   class ICBMCookieCache : public Cache<ICBMCookie, MessageEvent*> {
00036    public:
00037     ICBMCookieCache() { }
00038     ~ICBMCookieCache()
00039     {
00040       removeAll();
00041     }
00042 
00043     void removeItem(const ICBMCookieCache::literator& l) {
00044       delete ((*l).getValue());
00045       Cache<ICBMCookie, MessageEvent*>::removeItem(l);
00046     }
00047 
00048     void expireItem(const ICBMCookieCache::literator& l) {
00049       expired.emit( (*l).getValue() );
00050       Cache<ICBMCookie, MessageEvent*>::expireItem(l);
00051     }
00052 
00053     ICBMCookie generateUnique() const {
00054       ICBMCookie c;
00055       c.generate();
00056       while (exists(c)) c.generate();
00057       return c;
00058     }
00059 
00060     Signal1<void,MessageEvent*> expired;
00061 
00062   };
00063 }
00064 
00065 #endif

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