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@@ -1,133 +0,0 @@
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-/*
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- * ZeroTier One - Global Peer to Peer Ethernet
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- * Copyright (C) 2012-2013 ZeroTier Networks LLC
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- *
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- * This program is free software: you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation, either version 3 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program. If not, see <http://www.gnu.org/licenses/>.
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- *
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- * --
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- *
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- * ZeroTier may be used and distributed under the terms of the GPLv3, which
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- * are available at: http://www.gnu.org/licenses/gpl-3.0.html
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- *
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- * If you would like to embed ZeroTier into a commercial application or
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- * redistribute it in a modified binary form, please contact ZeroTier Networks
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- * LLC. Start here: http://www.zerotier.com/
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- */
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-
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-#ifndef _ZT_BLOOMFILTER_HPP
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-#define _ZT_BLOOMFILTER_HPP
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-
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-#include <string.h>
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-#include "Utils.hpp"
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-
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-namespace ZeroTier {
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-
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-/**
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- * A simple bit field bloom filter
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- *
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- * This actually isn't a total filter, in that it does not contain a hashing
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- * algorithm. It's up to the caller to hash/sum the items being remembered
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- * so that the distribution of 'n' is random across the filter's size range.
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- *
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- * @tparam B Size in BITS, must be a multiple of 8
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- */
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-template<unsigned int B>
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-class BloomFilter
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-{
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-public:
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- /**
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- * Construct an empty filter
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- */
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- BloomFilter()
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- throw()
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- {
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- memset(_field,0,sizeof(_field));
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- }
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-
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- /**
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- * Construct from a raw filter
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- *
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- * @param b Raw filter bits, must be exactly bytes() in length, or NULL to construct empty
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- */
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- BloomFilter(const void *b)
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- throw()
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- {
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- if (b)
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- memcpy(_field,b,sizeof(_field));
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- else memset(_field,0,sizeof(_field));
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- }
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-
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- /**
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- * @return Size of filter in bits
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- */
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- static inline unsigned int bits() throw() { return B; }
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-
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- /**
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- * @return Size of filter in bytes
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- */
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- static inline unsigned int bytes() throw() { return (B / 8); }
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-
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- /**
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- * @return Pointer to portable array of bytes of bytes() length representing filter
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- */
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- inline const unsigned char *data() const throw() { return _field; }
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-
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- /**
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- * Clear all bits in filter
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- */
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- inline void clear()
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- throw()
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- {
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- memset(_field,0,sizeof(_field));
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- }
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-
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- /**
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- * @param n Value to set
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- */
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- inline void set(unsigned int n)
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- throw()
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- {
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- n %= B;
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- _field[n / 8] |= (1 << (n % 8));
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- }
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-
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- /**
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- * @param n Value to test
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- * @return True if value is present is set
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- */
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- inline bool contains(unsigned int n)
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- throw()
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- {
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- n %= B;
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- return ((_field[n / 8] & (1 << (n % 8))) != 0);
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- }
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-
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- /**
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- * Clear a random bit in this bloom filter
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- *
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- * @param rn Random number
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- */
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- inline void decay(unsigned int rn)
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- throw()
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- {
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- _field[(rn >> 3) % (B / 8)] &= ~((unsigned char)(1 << (rn & 7)));
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- }
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-
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-private:
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- unsigned char _field[B / 8];
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-};
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-
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-} // namespace ZeroTier
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-
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-#endif
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