bucketedqueue.h

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/*
 * Copyright (c) 2011-2012, C. Sprunk, B. Lau, W. Burgard, University of Freiburg
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the University of Freiburg nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 */

#ifndef _PRIORITYQUEUE2_H_
#define _PRIORITYQUEUE2_H_

#include <vector>
#include <set>
#include <queue>
#include <assert.h>
#include "point.h"
#include <map>


template <typename T>
class BucketPrioQueue {

public:

  BucketPrioQueue(); 

  void clear() { buckets.clear(); }

  bool empty();
  void push(int prio, T t);
  T pop();
  
  int size() { return count; }
  int getNumBuckets() { return buckets.size(); }

private:
  
  int count;
  
  typedef std::map< int, std::queue<T> > BucketType;
  BucketType buckets;
  typename BucketType::iterator nextPop;
};

#include "bucketedqueue.hxx"

#endif