Thu, 27 May 2010 19:08:38 -0700
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 1997, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #ifndef _VECTOR_SET_ |
duke@435 | 26 | #define _VECTOR_SET_ |
duke@435 | 27 | // Vector Sets - An Abstract Data Type |
duke@435 | 28 | //INTERFACE |
duke@435 | 29 | |
duke@435 | 30 | // These sets can grow or shrink, based on the initial size and the largest |
duke@435 | 31 | // element currently in them. Slow and bulky for sparse sets, these sets |
duke@435 | 32 | // are super for dense sets. They are fast and compact when dense. |
duke@435 | 33 | |
duke@435 | 34 | // TIME: |
duke@435 | 35 | // O(1) - Insert, Delete, Member, Sort |
duke@435 | 36 | // O(max_element) - Create, Clear, Size, Copy, Union, Intersect, Difference, |
duke@435 | 37 | // Equal, ChooseMember, Forall |
duke@435 | 38 | |
duke@435 | 39 | // SPACE: (max_element)/(8*sizeof(int)) |
duke@435 | 40 | |
duke@435 | 41 | |
duke@435 | 42 | //------------------------------VectorSet-------------------------------------- |
duke@435 | 43 | class VectorSet : public Set { |
duke@435 | 44 | friend class VectorSetI; // Friendly iterator class |
duke@435 | 45 | protected: |
duke@435 | 46 | uint size; // Size of data IN LONGWORDS (32bits) |
duke@435 | 47 | uint32 *data; // The data, bit packed |
duke@435 | 48 | |
duke@435 | 49 | void slamin( const VectorSet& s ); // Initialize one set with another |
duke@435 | 50 | int compare(const VectorSet &s) const; // Compare set contents |
duke@435 | 51 | void grow(uint newsize); // Grow vector to required bitsize |
duke@435 | 52 | |
duke@435 | 53 | public: |
duke@435 | 54 | VectorSet(Arena *arena); // Creates a new, empty set. |
duke@435 | 55 | VectorSet(const VectorSet &s) : Set(s._set_arena) {slamin(s);} // Set clone; deep-copy guts |
duke@435 | 56 | Set &operator =(const Set &s); // Set clone; deep-copy guts |
duke@435 | 57 | VectorSet &operator =(const VectorSet &s) // Set clone; deep-copy guts |
duke@435 | 58 | { if( &s != this ) { slamin(s); } return *this; } |
duke@435 | 59 | ~VectorSet() {} |
duke@435 | 60 | Set &clone(void) const { return *(new VectorSet(*this)); } |
duke@435 | 61 | |
duke@435 | 62 | Set &operator <<=(uint elem); // Add member to set |
duke@435 | 63 | VectorSet operator << (uint elem) // Add member to new set |
duke@435 | 64 | { VectorSet foo(*this); foo <<= elem; return foo; } |
duke@435 | 65 | Set &operator >>=(uint elem); // Delete member from set |
duke@435 | 66 | VectorSet operator >> (uint elem) // Delete member from new set |
duke@435 | 67 | { VectorSet foo(*this); foo >>= elem; return foo; } |
duke@435 | 68 | |
duke@435 | 69 | VectorSet &operator &=(const VectorSet &s); // Intersect sets into first set |
duke@435 | 70 | Set &operator &=(const Set &s); // Intersect sets into first set |
duke@435 | 71 | VectorSet operator & (const VectorSet &s) const |
duke@435 | 72 | { VectorSet foo(*this); foo &= s; return foo; } |
duke@435 | 73 | |
duke@435 | 74 | VectorSet &operator |=(const VectorSet &s); // Intersect sets into first set |
duke@435 | 75 | Set &operator |=(const Set &s); // Intersect sets into first set |
duke@435 | 76 | VectorSet operator | (const VectorSet &s) const |
duke@435 | 77 | { VectorSet foo(*this); foo |= s; return foo; } |
duke@435 | 78 | |
duke@435 | 79 | VectorSet &operator -=(const VectorSet &s); // Intersect sets into first set |
duke@435 | 80 | Set &operator -=(const Set &s); // Intersect sets into first set |
duke@435 | 81 | VectorSet operator - (const VectorSet &s) const |
duke@435 | 82 | { VectorSet foo(*this); foo -= s; return foo; } |
duke@435 | 83 | |
duke@435 | 84 | int operator ==(const VectorSet &s) const; // True if sets are equal |
duke@435 | 85 | int operator ==(const Set &s) const; // True if sets are equal |
duke@435 | 86 | int operator < (const VectorSet &s) const; // True if strict subset |
duke@435 | 87 | int operator < (const Set &s) const; // True if strict subset |
duke@435 | 88 | int operator <=(const VectorSet &s) const; // True if subset relation holds. |
duke@435 | 89 | int operator <=(const Set &s) const; // True if subset relation holds. |
duke@435 | 90 | int disjoint (const Set &s) const; // True if sets are disjoint |
duke@435 | 91 | |
duke@435 | 92 | int operator [](uint elem) const; // Test for membership |
duke@435 | 93 | uint getelem(void) const; // Return a random element |
duke@435 | 94 | void Clear(void); // Clear a set |
duke@435 | 95 | uint Size(void) const; // Number of elements in the Set. |
duke@435 | 96 | void Sort(void); // Sort before iterating |
duke@435 | 97 | int hash() const; // Hash function |
duke@435 | 98 | |
duke@435 | 99 | /* Removed for MCC BUG |
duke@435 | 100 | operator const VectorSet* (void) const { return this; } */ |
duke@435 | 101 | const VectorSet *asVectorSet() const { return this; } |
duke@435 | 102 | |
duke@435 | 103 | // Expose internals for speed-critical fast iterators |
duke@435 | 104 | uint word_size() const { return size; } |
duke@435 | 105 | uint32 *EXPOSE() const { return data; } |
duke@435 | 106 | |
duke@435 | 107 | // Fast inlined "test and set". Replaces the idiom: |
duke@435 | 108 | // if( visited[idx] ) return; |
duke@435 | 109 | // visited <<= idx; |
duke@435 | 110 | // With: |
duke@435 | 111 | // if( visited.test_set(idx) ) return; |
duke@435 | 112 | // |
duke@435 | 113 | int test_set( uint elem ) { |
duke@435 | 114 | uint word = elem >> 5; // Get the longword offset |
duke@435 | 115 | if( word >= size ) // Beyond the last? |
duke@435 | 116 | return test_set_grow(elem); // Then grow; set; return 0; |
duke@435 | 117 | uint32 mask = 1L << (elem & 31); // Get bit mask |
duke@435 | 118 | uint32 datum = data[word] & mask;// Get bit |
duke@435 | 119 | data[word] |= mask; // Set bit |
duke@435 | 120 | return datum; // Return bit |
duke@435 | 121 | } |
duke@435 | 122 | int test_set_grow( uint elem ) { // Insert & return 0; |
duke@435 | 123 | (*this) <<= elem; // Insert into set |
duke@435 | 124 | return 0; // Return 0! |
duke@435 | 125 | } |
duke@435 | 126 | |
duke@435 | 127 | // Fast inlined test |
duke@435 | 128 | int test( uint elem ) const { |
duke@435 | 129 | uint word = elem >> 5; // Get the longword offset |
duke@435 | 130 | if( word >= size ) return 0; // Beyond the last? |
duke@435 | 131 | uint32 mask = 1L << (elem & 31); // Get bit mask |
duke@435 | 132 | return data[word] & mask; // Get bit |
duke@435 | 133 | } |
duke@435 | 134 | |
duke@435 | 135 | // Fast inlined set |
duke@435 | 136 | void set( uint elem ) { |
duke@435 | 137 | uint word = elem >> 5; // Get the longword offset |
duke@435 | 138 | if( word >= size ) { // Beyond the last? |
duke@435 | 139 | test_set_grow(elem); // Then grow and set |
duke@435 | 140 | } else { |
duke@435 | 141 | uint32 mask = 1L << (elem & 31); // Get bit mask |
duke@435 | 142 | data[word] |= mask; // Set bit |
duke@435 | 143 | } |
duke@435 | 144 | } |
duke@435 | 145 | |
duke@435 | 146 | |
duke@435 | 147 | private: |
duke@435 | 148 | friend class VSetI_; |
duke@435 | 149 | SetI_ *iterate(uint&) const; |
duke@435 | 150 | }; |
duke@435 | 151 | |
duke@435 | 152 | //------------------------------Iteration-------------------------------------- |
duke@435 | 153 | // Loop thru all elements of the set, setting "elem" to the element numbers |
duke@435 | 154 | // in random order. Inserted or deleted elements during this operation may |
duke@435 | 155 | // or may not be iterated over; untouched elements will be affected once. |
duke@435 | 156 | // Usage: for( VectorSetI i(s); i.test(); i++ ) { body = i.elem; } |
duke@435 | 157 | |
duke@435 | 158 | class VSetI_ : public SetI_ { |
duke@435 | 159 | friend class VectorSet; |
duke@435 | 160 | friend class VectorSetI; |
duke@435 | 161 | const VectorSet *s; |
duke@435 | 162 | uint i, j; |
duke@435 | 163 | uint32 mask; |
duke@435 | 164 | VSetI_(const VectorSet *vset); |
duke@435 | 165 | uint next(void); |
duke@435 | 166 | int test(void) { return i < s->size; } |
duke@435 | 167 | }; |
duke@435 | 168 | |
duke@435 | 169 | class VectorSetI : public SetI { |
duke@435 | 170 | public: |
duke@435 | 171 | VectorSetI( const VectorSet *s ) : SetI(s) { } |
duke@435 | 172 | void operator ++(void) { elem = ((VSetI_*)impl)->next(); } |
duke@435 | 173 | int test(void) { return ((VSetI_*)impl)->test(); } |
duke@435 | 174 | }; |
duke@435 | 175 | |
duke@435 | 176 | #endif // _VECTOR_SET_ |