truffle: src/share/vm/memory/binaryTreeDictionary.hpp annotate

annotate src/share/vm/memory/binaryTreeDictionary.hpp @ 6119:a297b0e14605

7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup Summary: Add "using" keyword to import base class functions from FreeList<T> to fix template name lookup in gcc 4.7 Reviewed-by: brutisso, iveresov

author	mgerdin
date	Mon, 04 Jun 2012 09:21:53 +0200
parents	f69a5d43dc19
children	da91efe96a93

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1145 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1145 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1145 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	25 #ifndef SHARE_VM_MEMORY_BINARYTREEDICTIONARY_HPP
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	26 #define SHARE_VM_MEMORY_BINARYTREEDICTIONARY_HPP
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	28 #include "memory/freeBlockDictionary.hpp"
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	29 #include "memory/freeList.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30
0 a61af66fc99e Initial load duke parents: diff changeset	31 /*
a61af66fc99e Initial load duke parents: diff changeset	32 * A binary tree based search structure for free blocks.
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	33 * This is currently used in the Concurrent Mark&Sweep implementation, but
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	34 * will be used for free block management for metadata.
0 a61af66fc99e Initial load duke parents: diff changeset	35 */
a61af66fc99e Initial load duke parents: diff changeset	36
a61af66fc99e Initial load duke parents: diff changeset	37 // A TreeList is a FreeList which can be used to maintain a
a61af66fc99e Initial load duke parents: diff changeset	38 // binary tree of free lists.
a61af66fc99e Initial load duke parents: diff changeset	39
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	40 template <class Chunk> class TreeChunk;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	41 template <class Chunk> class BinaryTreeDictionary;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	42 template <class Chunk> class AscendTreeCensusClosure;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	43 template <class Chunk> class DescendTreeCensusClosure;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	44 template <class Chunk> class DescendTreeSearchClosure;
0 a61af66fc99e Initial load duke parents: diff changeset	45
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	46 template <class Chunk>
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	47 class TreeList: public FreeList<Chunk> {
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	48 friend class TreeChunk<Chunk>;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	49 friend class BinaryTreeDictionary<Chunk>;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	50 friend class AscendTreeCensusClosure<Chunk>;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	51 friend class DescendTreeCensusClosure<Chunk>;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	52 friend class DescendTreeSearchClosure<Chunk>;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	53
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	54 TreeList<Chunk>* _parent;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	55 TreeList<Chunk>* _left;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	56 TreeList<Chunk>* _right;
0 a61af66fc99e Initial load duke parents: diff changeset	57
a61af66fc99e Initial load duke parents: diff changeset	58 protected:
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	59 TreeList<Chunk>* parent() const { return _parent; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	60 TreeList<Chunk>* left() const { return _left; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	61 TreeList<Chunk>* right() const { return _right; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	62
6119 a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	63 // Explicitly import these names into our namespace to fix name lookup with templates
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	64 using FreeList<Chunk>::head;
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	65 using FreeList<Chunk>::set_head;
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	66
6119 a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	67 using FreeList<Chunk>::tail;
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	68 using FreeList<Chunk>::set_tail;
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	69 using FreeList<Chunk>::link_tail;
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	70
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	71 using FreeList<Chunk>::increment_count;
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	72 NOT_PRODUCT(using FreeList<Chunk>::increment_returned_bytes_by;)
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	73 using FreeList<Chunk>::verify_chunk_in_free_list;
a297b0e14605 7172226: HotSpot fails to build with GCC 4.7 because of stricter c++ argument dependent lookup mgerdin parents: 6028 diff changeset	74 using FreeList<Chunk>::size;
0 a61af66fc99e Initial load duke parents: diff changeset	75
a61af66fc99e Initial load duke parents: diff changeset	76 // Accessors for links in tree.
a61af66fc99e Initial load duke parents: diff changeset	77
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	78 void set_left(TreeList<Chunk>* tl) {
0 a61af66fc99e Initial load duke parents: diff changeset	79 _left = tl;
a61af66fc99e Initial load duke parents: diff changeset	80 if (tl != NULL)
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	81 tl->set_parent(this);
0 a61af66fc99e Initial load duke parents: diff changeset	82 }
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	83 void set_right(TreeList<Chunk>* tl) {
0 a61af66fc99e Initial load duke parents: diff changeset	84 _right = tl;
a61af66fc99e Initial load duke parents: diff changeset	85 if (tl != NULL)
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	86 tl->set_parent(this);
0 a61af66fc99e Initial load duke parents: diff changeset	87 }
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	88 void set_parent(TreeList<Chunk>* tl) { _parent = tl; }
0 a61af66fc99e Initial load duke parents: diff changeset	89
a61af66fc99e Initial load duke parents: diff changeset	90 void clearLeft() { _left = NULL; }
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	91 void clear_right() { _right = NULL; }
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	92 void clear_parent() { _parent = NULL; }
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	93 void initialize() { clearLeft(); clear_right(), clear_parent(); }
0 a61af66fc99e Initial load duke parents: diff changeset	94
a61af66fc99e Initial load duke parents: diff changeset	95 // For constructing a TreeList from a Tree chunk or
a61af66fc99e Initial load duke parents: diff changeset	96 // address and size.
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	97 static TreeList<Chunk>* as_TreeList(TreeChunk<Chunk>* tc);
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	98 static TreeList<Chunk>* as_TreeList(HeapWord* addr, size_t size);
0 a61af66fc99e Initial load duke parents: diff changeset	99
a61af66fc99e Initial load duke parents: diff changeset	100 // Returns the head of the free list as a pointer to a TreeChunk.
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	101 TreeChunk<Chunk>* head_as_TreeChunk();
0 a61af66fc99e Initial load duke parents: diff changeset	102
a61af66fc99e Initial load duke parents: diff changeset	103 // Returns the first available chunk in the free list as a pointer
a61af66fc99e Initial load duke parents: diff changeset	104 // to a TreeChunk.
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	105 TreeChunk<Chunk>* first_available();
0 a61af66fc99e Initial load duke parents: diff changeset	106
1145 e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	107 // Returns the block with the largest heap address amongst
e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	108 // those in the list for this size; potentially slow and expensive,
e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	109 // use with caution!
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	110 TreeChunk<Chunk>* largest_address();
1145 e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	111
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	112 // remove_chunk_replace_if_needed() removes the given "tc" from the TreeList.
0 a61af66fc99e Initial load duke parents: diff changeset	113 // If "tc" is the first chunk in the list, it is also the
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	114 // TreeList that is the node in the tree. remove_chunk_replace_if_needed()
0 a61af66fc99e Initial load duke parents: diff changeset	115 // returns the possibly replaced TreeList* for the node in
a61af66fc99e Initial load duke parents: diff changeset	116 // the tree. It also updates the parent of the original
a61af66fc99e Initial load duke parents: diff changeset	117 // node to point to the new node.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	118 TreeList<Chunk>* remove_chunk_replace_if_needed(TreeChunk<Chunk>* tc);
0 a61af66fc99e Initial load duke parents: diff changeset	119 // See FreeList.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	120 void return_chunk_at_head(TreeChunk<Chunk>* tc);
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	121 void return_chunk_at_tail(TreeChunk<Chunk>* tc);
0 a61af66fc99e Initial load duke parents: diff changeset	122 };
a61af66fc99e Initial load duke parents: diff changeset	123
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	124 // A TreeChunk is a subclass of a Chunk that additionally
0 a61af66fc99e Initial load duke parents: diff changeset	125 // maintains a pointer to the free list on which it is currently
a61af66fc99e Initial load duke parents: diff changeset	126 // linked.
a61af66fc99e Initial load duke parents: diff changeset	127 // A TreeChunk is also used as a node in the binary tree. This
a61af66fc99e Initial load duke parents: diff changeset	128 // allows the binary tree to be maintained without any additional
a61af66fc99e Initial load duke parents: diff changeset	129 // storage (the free chunks are used). In a binary tree the first
a61af66fc99e Initial load duke parents: diff changeset	130 // chunk in the free list is also the tree node. Note that the
a61af66fc99e Initial load duke parents: diff changeset	131 // TreeChunk has an embedded TreeList for this purpose. Because
a61af66fc99e Initial load duke parents: diff changeset	132 // the first chunk in the list is distinguished in this fashion
a61af66fc99e Initial load duke parents: diff changeset	133 // (also is the node in the tree), it is the last chunk to be found
a61af66fc99e Initial load duke parents: diff changeset	134 // on the free list for a node in the tree and is only removed if
a61af66fc99e Initial load duke parents: diff changeset	135 // it is the last chunk on the free list.
a61af66fc99e Initial load duke parents: diff changeset	136
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	137 template <class Chunk>
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	138 class TreeChunk : public Chunk {
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	139 friend class TreeList<Chunk>;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	140 TreeList<Chunk>* _list;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	141 TreeList<Chunk> _embedded_list; // if non-null, this chunk is on _list
0 a61af66fc99e Initial load duke parents: diff changeset	142 protected:
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	143 TreeList<Chunk>* embedded_list() const { return (TreeList<Chunk>*) &_embedded_list; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	144 void set_embedded_list(TreeList<Chunk>* v) { _embedded_list = *v; }
0 a61af66fc99e Initial load duke parents: diff changeset	145 public:
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	146 TreeList<Chunk>* list() { return _list; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	147 void set_list(TreeList<Chunk>* v) { _list = v; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	148 static TreeChunk<Chunk>* as_TreeChunk(Chunk* fc);
0 a61af66fc99e Initial load duke parents: diff changeset	149 // Initialize fields in a TreeChunk that should be
a61af66fc99e Initial load duke parents: diff changeset	150 // initialized when the TreeChunk is being added to
a61af66fc99e Initial load duke parents: diff changeset	151 // a free list in the tree.
a61af66fc99e Initial load duke parents: diff changeset	152 void initialize() { embedded_list()->initialize(); }
a61af66fc99e Initial load duke parents: diff changeset	153
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	154 Chunk* next() const { return Chunk::next(); }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	155 Chunk* prev() const { return Chunk::prev(); }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	156 size_t size() const volatile { return Chunk::size(); }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	157
0 a61af66fc99e Initial load duke parents: diff changeset	158 // debugging
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	159 void verify_tree_chunk_list() const;
0 a61af66fc99e Initial load duke parents: diff changeset	160 };
a61af66fc99e Initial load duke parents: diff changeset	161
a61af66fc99e Initial load duke parents: diff changeset	162
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	163 template <class Chunk>
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	164 class BinaryTreeDictionary: public FreeBlockDictionary<Chunk> {
152 c70a245cad3a 6670684: 4/5 SA command universe did not print out CMS space information dcubed parents: 0 diff changeset	165 friend class VMStructs;
0 a61af66fc99e Initial load duke parents: diff changeset	166 bool _splay;
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	167 size_t _total_size;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	168 size_t _total_free_blocks;
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	169 TreeList<Chunk>* _root;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	170 bool _adaptive_freelists;
0 a61af66fc99e Initial load duke parents: diff changeset	171
a61af66fc99e Initial load duke parents: diff changeset	172 // private accessors
a61af66fc99e Initial load duke parents: diff changeset	173 bool splay() const { return _splay; }
a61af66fc99e Initial load duke parents: diff changeset	174 void set_splay(bool v) { _splay = v; }
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	175 void set_total_size(size_t v) { _total_size = v; }
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	176 virtual void inc_total_size(size_t v);
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	177 virtual void dec_total_size(size_t v);
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	178 size_t total_free_blocks() const { return _total_free_blocks; }
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	179 void set_total_free_blocks(size_t v) { _total_free_blocks = v; }
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	180 TreeList<Chunk>* root() const { return _root; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	181 void set_root(TreeList<Chunk>* v) { _root = v; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	182 bool adaptive_freelists() { return _adaptive_freelists; }
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	183
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	184 // This field is added and can be set to point to the
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	185 // the Mutex used to synchronize access to the
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	186 // dictionary so that assertion checking can be done.
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	187 // For example it is set to point to _parDictionaryAllocLock.
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	188 NOT_PRODUCT(Mutex* _lock;)
0 a61af66fc99e Initial load duke parents: diff changeset	189
a61af66fc99e Initial load duke parents: diff changeset	190 // Remove a chunk of size "size" or larger from the tree and
a61af66fc99e Initial load duke parents: diff changeset	191 // return it. If the chunk
a61af66fc99e Initial load duke parents: diff changeset	192 // is the last chunk of that size, remove the node for that size
a61af66fc99e Initial load duke parents: diff changeset	193 // from the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	194 TreeChunk<Chunk>* get_chunk_from_tree(size_t size, enum FreeBlockDictionary<Chunk>::Dither dither, bool splay);
0 a61af66fc99e Initial load duke parents: diff changeset	195 // Return a list of the specified size or NULL from the tree.
a61af66fc99e Initial load duke parents: diff changeset	196 // The list is not removed from the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	197 TreeList<Chunk>* find_list (size_t size) const;
0 a61af66fc99e Initial load duke parents: diff changeset	198 // Remove this chunk from the tree. If the removal results
a61af66fc99e Initial load duke parents: diff changeset	199 // in an empty list in the tree, remove the empty list.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	200 TreeChunk<Chunk>* remove_chunk_from_tree(TreeChunk<Chunk>* tc);
0 a61af66fc99e Initial load duke parents: diff changeset	201 // Remove the node in the trees starting at tl that has the
a61af66fc99e Initial load duke parents: diff changeset	202 // minimum value and return it. Repair the tree as needed.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	203 TreeList<Chunk>* remove_tree_minimum(TreeList<Chunk>* tl);
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	204 void semi_splay_step(TreeList<Chunk>* tl);
0 a61af66fc99e Initial load duke parents: diff changeset	205 // Add this free chunk to the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	206 void insert_chunk_in_tree(Chunk* freeChunk);
0 a61af66fc99e Initial load duke parents: diff changeset	207 public:
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	208
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	209 static const size_t min_tree_chunk_size = sizeof(TreeChunk<Chunk>)/HeapWordSize;
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	210
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	211 void verify_tree() const;
0 a61af66fc99e Initial load duke parents: diff changeset	212 // verify that the given chunk is in the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	213 bool verify_chunk_in_free_list(Chunk* tc) const;
0 a61af66fc99e Initial load duke parents: diff changeset	214 private:
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	215 void verify_tree_helper(TreeList<Chunk>* tl) const;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	216 static size_t verify_prev_free_ptrs(TreeList<Chunk>* tl);
0 a61af66fc99e Initial load duke parents: diff changeset	217
a61af66fc99e Initial load duke parents: diff changeset	218 // Returns the total number of chunks in the list.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	219 size_t total_list_length(TreeList<Chunk>* tl) const;
0 a61af66fc99e Initial load duke parents: diff changeset	220 // Returns the total number of words in the chunks in the tree
a61af66fc99e Initial load duke parents: diff changeset	221 // starting at "tl".
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	222 size_t total_size_in_tree(TreeList<Chunk>* tl) const;
0 a61af66fc99e Initial load duke parents: diff changeset	223 // Returns the sum of the square of the size of each block
a61af66fc99e Initial load duke parents: diff changeset	224 // in the tree starting at "tl".
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	225 double sum_of_squared_block_sizes(TreeList<Chunk>* const tl) const;
0 a61af66fc99e Initial load duke parents: diff changeset	226 // Returns the total number of free blocks in the tree starting
a61af66fc99e Initial load duke parents: diff changeset	227 // at "tl".
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	228 size_t total_free_blocks_in_tree(TreeList<Chunk>* tl) const;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	229 size_t num_free_blocks() const;
0 a61af66fc99e Initial load duke parents: diff changeset	230 size_t treeHeight() const;
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	231 size_t tree_height_helper(TreeList<Chunk>* tl) const;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	232 size_t total_nodes_in_tree(TreeList<Chunk>* tl) const;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	233 size_t total_nodes_helper(TreeList<Chunk>* tl) const;
0 a61af66fc99e Initial load duke parents: diff changeset	234
a61af66fc99e Initial load duke parents: diff changeset	235 public:
a61af66fc99e Initial load duke parents: diff changeset	236 // Constructor
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	237 BinaryTreeDictionary(bool adaptive_freelists, bool splay = false);
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	238 BinaryTreeDictionary(MemRegion mr, bool adaptive_freelists, bool splay = false);
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	239
9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	240 // Public accessors
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	241 size_t total_size() const { return _total_size; }
0 a61af66fc99e Initial load duke parents: diff changeset	242
a61af66fc99e Initial load duke parents: diff changeset	243 // Reset the dictionary to the initial conditions with
a61af66fc99e Initial load duke parents: diff changeset	244 // a single free chunk.
a61af66fc99e Initial load duke parents: diff changeset	245 void reset(MemRegion mr);
a61af66fc99e Initial load duke parents: diff changeset	246 void reset(HeapWord* addr, size_t size);
a61af66fc99e Initial load duke parents: diff changeset	247 // Reset the dictionary to be empty.
a61af66fc99e Initial load duke parents: diff changeset	248 void reset();
a61af66fc99e Initial load duke parents: diff changeset	249
a61af66fc99e Initial load duke parents: diff changeset	250 // Return a chunk of size "size" or greater from
a61af66fc99e Initial load duke parents: diff changeset	251 // the tree.
a61af66fc99e Initial load duke parents: diff changeset	252 // want a better dynamic splay strategy for the future.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	253 Chunk* get_chunk(size_t size, enum FreeBlockDictionary<Chunk>::Dither dither) {
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	254 FreeBlockDictionary<Chunk>::verify_par_locked();
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	255 Chunk* res = get_chunk_from_tree(size, dither, splay());
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	256 assert(res == NULL \|\| res->is_free(),
0 a61af66fc99e Initial load duke parents: diff changeset	257 "Should be returning a free chunk");
a61af66fc99e Initial load duke parents: diff changeset	258 return res;
a61af66fc99e Initial load duke parents: diff changeset	259 }
a61af66fc99e Initial load duke parents: diff changeset	260
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	261 void return_chunk(Chunk* chunk) {
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	262 FreeBlockDictionary<Chunk>::verify_par_locked();
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	263 insert_chunk_in_tree(chunk);
0 a61af66fc99e Initial load duke parents: diff changeset	264 }
a61af66fc99e Initial load duke parents: diff changeset	265
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	266 void remove_chunk(Chunk* chunk) {
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	267 FreeBlockDictionary<Chunk>::verify_par_locked();
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	268 remove_chunk_from_tree((TreeChunk<Chunk>*)chunk);
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	269 assert(chunk->is_free(), "Should still be a free chunk");
0 a61af66fc99e Initial load duke parents: diff changeset	270 }
a61af66fc99e Initial load duke parents: diff changeset	271
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	272 size_t max_chunk_size() const;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	273 size_t total_chunk_size(debug_only(const Mutex* lock)) const {
0 a61af66fc99e Initial load duke parents: diff changeset	274 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	275 if (lock != NULL && lock->owned_by_self()) {
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	276 assert(total_size_in_tree(root()) == total_size(),
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	277 "_total_size inconsistency");
0 a61af66fc99e Initial load duke parents: diff changeset	278 }
a61af66fc99e Initial load duke parents: diff changeset	279 )
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	280 return total_size();
0 a61af66fc99e Initial load duke parents: diff changeset	281 }
a61af66fc99e Initial load duke parents: diff changeset	282
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	283 size_t min_size() const {
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	284 return min_tree_chunk_size;
0 a61af66fc99e Initial load duke parents: diff changeset	285 }
a61af66fc99e Initial load duke parents: diff changeset	286
a61af66fc99e Initial load duke parents: diff changeset	287 double sum_of_squared_block_sizes() const {
a61af66fc99e Initial load duke parents: diff changeset	288 return sum_of_squared_block_sizes(root());
a61af66fc99e Initial load duke parents: diff changeset	289 }
a61af66fc99e Initial load duke parents: diff changeset	290
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	291 Chunk* find_chunk_ends_at(HeapWord* target) const;
0 a61af66fc99e Initial load duke parents: diff changeset	292
a61af66fc99e Initial load duke parents: diff changeset	293 // Find the list with size "size" in the binary tree and update
a61af66fc99e Initial load duke parents: diff changeset	294 // the statistics in the list according to "split" (chunk was
a61af66fc99e Initial load duke parents: diff changeset	295 // split or coalesce) and "birth" (chunk was added or removed).
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	296 void dict_census_udpate(size_t size, bool split, bool birth);
0 a61af66fc99e Initial load duke parents: diff changeset	297 // Return true if the dictionary is overpopulated (more chunks of
a61af66fc99e Initial load duke parents: diff changeset	298 // this size than desired) for size "size".
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	299 bool coal_dict_over_populated(size_t size);
0 a61af66fc99e Initial load duke parents: diff changeset	300 // Methods called at the beginning of a sweep to prepare the
a61af66fc99e Initial load duke parents: diff changeset	301 // statistics for the sweep.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	302 void begin_sweep_dict_census(double coalSurplusPercent,
1145 e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	303 float inter_sweep_current,
e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	304 float inter_sweep_estimate,
e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	305 float intra_sweep_estimate);
0 a61af66fc99e Initial load duke parents: diff changeset	306 // Methods called after the end of a sweep to modify the
a61af66fc99e Initial load duke parents: diff changeset	307 // statistics for the sweep.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	308 void end_sweep_dict_census(double splitSurplusPercent);
0 a61af66fc99e Initial load duke parents: diff changeset	309 // Return the largest free chunk in the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	310 Chunk* find_largest_dict() const;
0 a61af66fc99e Initial load duke parents: diff changeset	311 // Accessors for statistics
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	312 void set_tree_surplus(double splitSurplusPercent);
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	313 void set_tree_hints(void);
0 a61af66fc99e Initial load duke parents: diff changeset	314 // Reset statistics for all the lists in the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	315 void clear_tree_census(void);
0 a61af66fc99e Initial load duke parents: diff changeset	316 // Print the statistcis for all the lists in the tree. Also may
a61af66fc99e Initial load duke parents: diff changeset	317 // print out summaries.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	318 void print_dict_census(void) const;
1145 e018e6884bd8 6631166: CMS: better heuristics when combatting fragmentation ysr parents: 196 diff changeset	319 void print_free_lists(outputStream* st) const;
0 a61af66fc99e Initial load duke parents: diff changeset	320
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	321 // For debugging. Returns the sum of the _returned_bytes for
0 a61af66fc99e Initial load duke parents: diff changeset	322 // all lists in the tree.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	323 size_t sum_dict_returned_bytes() PRODUCT_RETURN0;
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	324 // Sets the _returned_bytes for all the lists in the tree to zero.
f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	325 void initialize_dict_returned_bytes() PRODUCT_RETURN;
0 a61af66fc99e Initial load duke parents: diff changeset	326 // For debugging. Return the total number of chunks in the dictionary.
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	327 size_t total_count() PRODUCT_RETURN0;
0 a61af66fc99e Initial load duke parents: diff changeset	328
6028 f69a5d43dc19 7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary* jmasa parents: 6026 diff changeset	329 void report_statistics() const;
0 a61af66fc99e Initial load duke parents: diff changeset	330
a61af66fc99e Initial load duke parents: diff changeset	331 void verify() const;
a61af66fc99e Initial load duke parents: diff changeset	332 };
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	333
6026 9f059abe8cf2 7131629: Generalize the CMS free list code jmasa parents: 1972 diff changeset	334 #endif // SHARE_VM_MEMORY_BINARYTREEDICTIONARY_HPP

Mercurial > hg > truffle

annotate src/share/vm/memory/binaryTreeDictionary.hpp @ 6119:a297b0e14605