multi_bloom_filter.hh revision 14262:991410960fdb
1/* 2 * Copyright (c) 2019 Inria 3 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer; 10 * redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution; 13 * neither the name of the copyright holders nor the names of its 14 * contributors may be used to endorse or promote products derived from 15 * this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * Authors: Daniel Carvalho 30 */ 31 32#ifndef __BASE_FILTERS_MULTI_BLOOM_FILTER_HH__ 33#define __BASE_FILTERS_MULTI_BLOOM_FILTER_HH__ 34 35#include <vector> 36 37#include "base/filters/base.hh" 38 39struct BloomFilterMultiParams; 40 41namespace BloomFilter { 42 43/** 44 * This BloomFilter has multiple sub-filters, each with its own hashing 45 * functionality. The results of the operations are the results of applying 46 * them to each sub-filter. 47 */ 48class Multi : public Base 49{ 50 public: 51 Multi(const BloomFilterMultiParams* p); 52 ~Multi(); 53 54 void clear() override; 55 void set(Addr addr) override; 56 void unset(Addr addr) override; 57 58 void merge(const Base* other) override; 59 bool isSet(Addr addr) const override; 60 int getCount(Addr addr) const override; 61 int getTotalCount() const override; 62 63 private: 64 /** Sub-filters used by this filter. */ 65 std::vector<Base*> filters; 66}; 67 68} // namespace BloomFilter 69 70#endif // __BASE_FILTERS_MULTI_BLOOM_FILTER_HH__ 71