Set.hh revision 7055:4e24742201d7
1 2/* 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 30/* 31 * Set.hh 32 * 33 * Description: 34 * 35 * $Id: BigSet.hh 1.6 05/01/19 13:12:25-06:00 mikem@maya.cs.wisc.edu $ 36 * 37 */ 38 39// modified by Dan Gibson on 05/20/05 to accomidate FASTER 40// >32 set lengths, using an array of ints w/ 32 bits/int 41 42// NOTE: Never include this file directly, this should only be 43// included from Set.hh 44 45#ifndef SET_H 46#define SET_H 47 48#include <iostream> 49 50#include "mem/ruby/system/System.hh" 51#include "mem/ruby/common/Global.hh" 52#include "mem/gems_common/Vector.hh" 53#include "mem/ruby/system/NodeID.hh" 54 55// gibson 05/20/05 56// enum PresenceBit {NotPresent, Present}; 57 58class Set { 59public: 60 // Constructors 61 // creates and empty set 62 Set(); 63 Set (int size); 64 65 // used during the replay mechanism 66 // Set(const char *str); 67 68 Set(const Set& obj); 69 Set& operator=(const Set& obj); 70 71 // Destructor 72 ~Set(); 73 74 // Public Methods 75 76 inline void add(NodeID index) 77 { 78#ifdef __32BITS__ 79 m_p_nArray[index>>5] |= (1 << (index & 0x01F)); 80#else 81 m_p_nArray[index>>6] |= (((unsigned long) 1) << (index & 0x03F)); 82#endif // __32BITS__ 83 } 84 85 void addSet(const Set& set); 86 void addRandom(); 87 88 inline void remove(NodeID index) 89 { 90#ifdef __32BITS__ 91 m_p_nArray[index>>5] &= ~(0x00000001 << (index & 0x01F)); 92#else 93 m_p_nArray[index>>6] &= ~(((unsigned long) 0x0000000000000001) << (index & 0x03F)); 94#endif // __32BITS__ 95 } 96 97 98 void removeSet(const Set& set); 99 100 inline void clear() { for(int i=0; i<m_nArrayLen; i++) m_p_nArray[i] = 0; } 101 102 void broadcast(); 103 int count() const; 104 bool isEqual(const Set& set) const; 105 106 Set OR(const Set& orSet) const; // return the logical OR of this set and orSet 107 Set AND(const Set& andSet) const; // return the logical AND of this set and andSet 108 109 // Returns true if the intersection of the two sets is non-empty 110 inline bool intersectionIsNotEmpty(const Set& other_set) const 111 { 112 for(int i=0; i< m_nArrayLen; i++) { 113 if(m_p_nArray[i] & other_set.m_p_nArray[i]) { 114 return true; 115 } 116 } 117 return false; 118 } 119 120 // Returns true if the intersection of the two sets is empty 121 inline bool intersectionIsEmpty(const Set& other_set) const 122 { 123 for(int i=0; i< m_nArrayLen; i++) { 124 if(m_p_nArray[i] & other_set.m_p_nArray[i]) { 125 return false; 126 } 127 } 128 return true; 129 } 130 131 bool isSuperset(const Set& test) const; 132 bool isSubset(const Set& test) const { return test.isSuperset(*this); } 133 134 inline bool isElement(NodeID element) const 135 { 136#ifdef __32BITS__ 137 return ((m_p_nArray[element>>5] & (0x00000001 << (element & 0x01F)))!=0); 138#else 139 return ((m_p_nArray[element>>6] & (((unsigned long) 0x0000000000000001) << (element & 0x03F)))!=0); 140#endif // __32BITS__ 141 142 } 143 144 bool isBroadcast() const; 145 bool isEmpty() const; 146 147 NodeID smallestElement() const; 148 149 // int size() const; 150 void setSize (int size); 151 152 // get element for a index 153 inline NodeID elementAt(int index) const 154 { 155 if(isElement(index)) return (NodeID) true; 156 else return 0; 157 } 158 159 // gibson 05/20/05 160 int getSize() const { return m_nSize; } 161 162 // DEPRECATED METHODS 163 void addToSet(NodeID newElement) { add(newElement); } // Deprecated 164 void removeFromSet(NodeID newElement) { remove(newElement); } // Deprecated 165 void clearSet() { clear(); } // Deprecated 166 void setBroadcast() { broadcast(); } // Deprecated 167 bool presentInSet(NodeID element) const { return isElement(element); } // Deprecated 168 169 void print(std::ostream& out) const; 170private: 171 // Private Methods 172 173 // Data Members (m_ prefix) 174 // gibson 05/20/05 175 // Vector<uint8> m_bits; // This is an vector of uint8 to reduce the size of the set 176 177 int m_nSize; // the number of bits in this set 178 int m_nArrayLen; // the number of 32-bit words that are held in the array 179 180 // Changed 5/24/05 for static allocation of array 181 // note that "long" corresponds to 32 bits on a 32-bit machine, 182 // 64 bits if the -m64 parameter is passed to g++, which it is 183 // for an AMD opteron under our configuration 184 185 long * m_p_nArray; // an word array to hold the bits in the set 186 long m_p_nArray_Static[NUMBER_WORDS_PER_SET]; 187}; 188 189// Output operator declaration 190std::ostream& operator<<(std::ostream& out, const Set& obj); 191 192// ******************* Definitions ******************* 193 194// Output operator definition 195extern inline 196std::ostream& operator<<(std::ostream& out, const Set& obj) 197{ 198 obj.print(out); 199 out << std::flush; 200 return out; 201} 202 203#endif //SET_H 204 205