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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* 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 copyright holders 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 CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Set.hh
*
* Description:
*
* $Id: BigSet.hh 1.6 05/01/19 13:12:25-06:00 mikem@maya.cs.wisc.edu $
*
*/
// modified by Dan Gibson on 05/20/05 to accomidate FASTER
// >32 set lengths, using an array of ints w/ 32 bits/int
// NOTE: Never include this file directly, this should only be
// included from Set.hh
#ifndef SET_H
#define SET_H
#include <iostream>
#include "mem/ruby/system/System.hh"
#include "mem/ruby/common/Global.hh"
#include "mem/gems_common/Vector.hh"
#include "mem/ruby/system/NodeID.hh"
// gibson 05/20/05
// enum PresenceBit {NotPresent, Present};
class Set {
public:
// Constructors
// creates and empty set
Set();
Set (int size);
// used during the replay mechanism
// Set(const char *str);
Set(const Set& obj);
Set& operator=(const Set& obj);
// Destructor
~Set();
// Public Methods
inline void add(NodeID index)
{
#ifdef __32BITS__
m_p_nArray[index>>5] |= (1 << (index & 0x01F));
#else
m_p_nArray[index>>6] |= (((unsigned long) 1) << (index & 0x03F));
#endif // __32BITS__
}
void addSet(const Set& set);
void addRandom();
inline void remove(NodeID index)
{
#ifdef __32BITS__
m_p_nArray[index>>5] &= ~(0x00000001 << (index & 0x01F));
#else
m_p_nArray[index>>6] &= ~(((unsigned long) 0x0000000000000001) << (index & 0x03F));
#endif // __32BITS__
}
void removeSet(const Set& set);
inline void clear() { for(int i=0; i<m_nArrayLen; i++) m_p_nArray[i] = 0; }
void broadcast();
int count() const;
bool isEqual(const Set& set) const;
Set OR(const Set& orSet) const; // return the logical OR of this set and orSet
Set AND(const Set& andSet) const; // return the logical AND of this set and andSet
// Returns true if the intersection of the two sets is non-empty
inline bool intersectionIsNotEmpty(const Set& other_set) const
{
for(int i=0; i< m_nArrayLen; i++) {
if(m_p_nArray[i] & other_set.m_p_nArray[i]) {
return true;
}
}
return false;
}
// Returns true if the intersection of the two sets is empty
inline bool intersectionIsEmpty(const Set& other_set) const
{
for(int i=0; i< m_nArrayLen; i++) {
if(m_p_nArray[i] & other_set.m_p_nArray[i]) {
return false;
}
}
return true;
}
bool isSuperset(const Set& test) const;
bool isSubset(const Set& test) const { return test.isSuperset(*this); }
inline bool isElement(NodeID element) const
{
#ifdef __32BITS__
return ((m_p_nArray[element>>5] & (0x00000001 << (element & 0x01F)))!=0);
#else
return ((m_p_nArray[element>>6] & (((unsigned long) 0x0000000000000001) << (element & 0x03F)))!=0);
#endif // __32BITS__
}
bool isBroadcast() const;
bool isEmpty() const;
NodeID smallestElement() const;
// int size() const;
void setSize (int size);
// get element for a index
inline NodeID elementAt(int index) const
{
if(isElement(index)) return (NodeID) true;
else return 0;
}
// gibson 05/20/05
int getSize() const { return m_nSize; }
// DEPRECATED METHODS
void addToSet(NodeID newElement) { add(newElement); } // Deprecated
void removeFromSet(NodeID newElement) { remove(newElement); } // Deprecated
void clearSet() { clear(); } // Deprecated
void setBroadcast() { broadcast(); } // Deprecated
bool presentInSet(NodeID element) const { return isElement(element); } // Deprecated
void print(std::ostream& out) const;
private:
// Private Methods
// Data Members (m_ prefix)
// gibson 05/20/05
// Vector<uint8> m_bits; // This is an vector of uint8 to reduce the size of the set
int m_nSize; // the number of bits in this set
int m_nArrayLen; // the number of 32-bit words that are held in the array
// Changed 5/24/05 for static allocation of array
// note that "long" corresponds to 32 bits on a 32-bit machine,
// 64 bits if the -m64 parameter is passed to g++, which it is
// for an AMD opteron under our configuration
long * m_p_nArray; // an word array to hold the bits in the set
long m_p_nArray_Static[NUMBER_WORDS_PER_SET];
};
// Output operator declaration
std::ostream& operator<<(std::ostream& out, const Set& obj);
// ******************* Definitions *******************
// Output operator definition
extern inline
std::ostream& operator<<(std::ostream& out, const Set& obj)
{
obj.print(out);
out << std::flush;
return out;
}
#endif //SET_H
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