/* * DCCache * * Copyright (C) 2001 Barnaby Gray <barnaby@beedesign.co.uk> * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #ifndef DCCACHE_H #define DCCACHE_H #include "Cache.h" #include "libicq2000/sigslot.h" namespace ICQ2000 { /* predeclare classes */ class DirectClient; /* fd -> DirectClient cache * * Where the party is at. Once a DirectClient object is added to the * cache MM for it is assumed on the cache. Also lookups for a * Contact are done in linear time now, it was just too much of a * head-ache maintaining the uin map in Client. */ class DCCache : public Cache<int, DirectClient*> { public: DCCache() { } ~DCCache() { removeAll(); } void removeItem(const DCCache::literator& l) { delete ((*l).getValue()); Cache<int, DirectClient*>::removeItem(l); } void expireItem(const DCCache::literator& l) { expired.emit( (*l).getValue() ); Cache<int, DirectClient*>::expireItem(l); /* this will removeItem(..), which'll delete the DirectClient * (see above). */ } void removeContact(const ContactRef& c) { literator curr = m_list.begin(); literator next = curr; while ( curr != m_list.end() ) { DirectClient *dc = (*curr).getValue(); ++next; if ( dc->getContact().get() != NULL /* Direct Connections won't have a contact associated * with them initially just after having been accepted as * an incoming connection (we don't know who they are * yet) - so Contact could be a NULL ref. */ && dc->getContact()->getUIN() == c->getUIN() ) { removeItem(curr); } curr = next; } } DirectClient* getByContact(const ContactRef& c) { // linear lookup literator curr = m_list.begin(); while ( curr != m_list.end() ) { DirectClient *dc = (*curr).getValue(); if ( dc->getContact().get() != NULL /* Direct Connections won't have a contact associated * with them initially just after having been accepted as * an incoming connection (we don't know who they are * yet) - so Contact could be a NULL ref. */ && dc->getContact()->getUIN() == c->getUIN() ) return dc; // found it ++curr; } return NULL; // not found } void clearoutMessagesPoll() { literator curr = m_list.begin(); while ( curr != m_list.end() ) { DirectClient *dc = (*curr).getValue(); dc->clearoutMessagesPoll(); ++curr; } } sigslot::signal1<DirectClient*> expired; }; } #endif