2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
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14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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29 #ifndef __MEM_RUBY_FILTERS_MULTIGRAINBLOOMFILTER_HH__
30 #define __MEM_RUBY_FILTERS_MULTIGRAINBLOOMFILTER_HH__
36 #include "mem/ruby/common/Address.hh"
37 #include "mem/ruby/common/Global.hh"
38 #include "mem/ruby/filters/AbstractBloomFilter.hh"
40 class MultiGrainBloomFilter : public AbstractBloomFilter
43 MultiGrainBloomFilter(std::string str);
44 ~MultiGrainBloomFilter();
47 void increment(const Address& addr);
48 void decrement(const Address& addr);
49 void merge(AbstractBloomFilter * other_filter);
50 void set(const Address& addr);
51 void unset(const Address& addr);
53 bool isSet(const Address& addr);
54 int getCount(const Address& addr);
56 int getIndex(const Address& addr);
57 int readBit(const int index);
58 void writeBit(const int index, const int value);
60 void print(std::ostream& out) const;
63 int get_block_index(const Address& addr);
64 int get_page_index(const Address & addr);
67 std::vector<int> m_filter;
69 int m_filter_size_bits;
70 // The page number filter
71 std::vector<int> m_page_filter;
72 int m_page_filter_size;
73 int m_page_filter_size_bits;
76 #endif // __MEM_RUBY_FILTERS_MULTIGRAINBLOOMFILTER_HH__