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+/***************************************************************************
+ * Copyright (C) 2005 by Joris Guisson *
+ * joris.guisson@gmail.com *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program 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 General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
+ ***************************************************************************/
+#ifndef DHTKCLOSESTNODESSEARCH_H
+#define DHTKCLOSESTNODESSEARCH_H
+
+#include <map>
+#include "key.h"
+#include "kbucket.h"
+
+namespace dht
+{
+
+ /**
+ * @author Joris Guisson <joris.guisson@gmail.com>
+ *
+ * Class used to store the search results during a K closests nodes search
+ * Note: we use a std::map because of lack of functionality in QMap
+ */
+ class KClosestNodesSearch
+ {
+ dht::Key key;
+ std::map<dht::Key,KBucketEntry> emap;
+ Uint32 max_entries;
+ public:
+ /**
+ * Constructor sets the key to compare with
+ * @param key The key to compare with
+ * @param max_entries The maximum number of entries can be in the map
+ * @return
+ */
+ KClosestNodesSearch(const dht::Key & key,Uint32 max_entries);
+ virtual ~KClosestNodesSearch();
+
+ typedef std::map<dht::Key,KBucketEntry>::iterator Itr;
+ typedef std::map<dht::Key,KBucketEntry>::const_iterator CItr;
+
+ Itr begin() {return emap.begin();}
+ Itr end() {return emap.end();}
+
+ CItr begin() const {return emap.begin();}
+ CItr end() const {return emap.end();}
+
+ /// Get the target key of the search3
+ const dht::Key & getSearchTarget() const {return key;}
+
+ /// Get the number of entries.
+ bt::Uint32 getNumEntries() const {return emap.size();}
+
+ /**
+ * Try to insert an entry.
+ * @param e The entry
+ */
+ void tryInsert(const KBucketEntry & e);
+
+ /**
+ * Gets the required space in bytes to pack the nodes.
+ * This should be used to determin the size of the buffer
+ * passed to pack.
+ * @return 26 * number of entries
+ */
+ Uint32 requiredSpace() const {return emap.size()* 26;}
+
+ /**
+ * Pack the search results in a buffer, the buffer should have
+ * enough space to store requiredSpace() bytes.
+ * @param ba The buffer
+ */
+ void pack(QByteArray & ba);
+ };
+
+}
+
+#endif