Mercurial > hg > truffle
annotate src/share/vm/memory/binaryTreeDictionary.cpp @ 8035:f64ffbf81af5
8006432: Ratio flags should be unsigned
Summary: Flags changed to be of uintx type
Reviewed-by: johnc, tamao
author | jwilhelm |
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date | Thu, 07 Feb 2013 15:51:25 +0100 |
parents | 3c327c2b6782 |
children | 3c9bc17b9403 |
rev | line source |
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0 | 1 /* |
6026 | 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "gc_implementation/shared/allocationStats.hpp" | |
6026 | 27 #include "memory/binaryTreeDictionary.hpp" |
6885 | 28 #include "memory/freeList.hpp" |
29 #include "memory/freeBlockDictionary.hpp" | |
30 #include "memory/metablock.hpp" | |
31 #include "memory/metachunk.hpp" | |
1972 | 32 #include "runtime/globals.hpp" |
33 #include "utilities/ostream.hpp" | |
6026 | 34 #ifndef SERIALGC |
6885 | 35 #include "gc_implementation/concurrentMarkSweep/adaptiveFreeList.hpp" |
36 #include "gc_implementation/concurrentMarkSweep/freeChunk.hpp" | |
6026 | 37 #include "gc_implementation/shared/spaceDecorator.hpp" |
38 #include "gc_implementation/concurrentMarkSweep/freeChunk.hpp" | |
39 #endif // SERIALGC | |
0 | 40 |
41 //////////////////////////////////////////////////////////////////////////////// | |
42 // A binary tree based search structure for free blocks. | |
43 // This is currently used in the Concurrent Mark&Sweep implementation. | |
44 //////////////////////////////////////////////////////////////////////////////// | |
45 | |
6885 | 46 template <class Chunk_t, template <class> class FreeList_t> |
47 size_t TreeChunk<Chunk_t, FreeList_t>::_min_tree_chunk_size = sizeof(TreeChunk<Chunk_t, FreeList_t>)/HeapWordSize; | |
48 | |
49 template <class Chunk_t, template <class> class FreeList_t> | |
50 TreeChunk<Chunk_t, FreeList_t>* TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(Chunk_t* fc) { | |
0 | 51 // Do some assertion checking here. |
6885 | 52 return (TreeChunk<Chunk_t, FreeList_t>*) fc; |
0 | 53 } |
54 | |
6885 | 55 template <class Chunk_t, template <class> class FreeList_t> |
56 void TreeChunk<Chunk_t, FreeList_t>::verify_tree_chunk_list() const { | |
57 TreeChunk<Chunk_t, FreeList_t>* nextTC = (TreeChunk<Chunk_t, FreeList_t>*)next(); | |
0 | 58 if (prev() != NULL) { // interior list node shouldn'r have tree fields |
59 guarantee(embedded_list()->parent() == NULL && embedded_list()->left() == NULL && | |
60 embedded_list()->right() == NULL, "should be clear"); | |
61 } | |
62 if (nextTC != NULL) { | |
63 guarantee(as_TreeChunk(nextTC->prev()) == this, "broken chain"); | |
64 guarantee(nextTC->size() == size(), "wrong size"); | |
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65 nextTC->verify_tree_chunk_list(); |
0 | 66 } |
67 } | |
68 | |
6885 | 69 template <class Chunk_t, template <class> class FreeList_t> |
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70 TreeList<Chunk_t, FreeList_t>::TreeList() : _parent(NULL), |
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71 _left(NULL), _right(NULL) {} |
0 | 72 |
6885 | 73 template <class Chunk_t, template <class> class FreeList_t> |
74 TreeList<Chunk_t, FreeList_t>* | |
75 TreeList<Chunk_t, FreeList_t>::as_TreeList(TreeChunk<Chunk_t,FreeList_t>* tc) { | |
0 | 76 // This first free chunk in the list will be the tree list. |
6885 | 77 assert((tc->size() >= (TreeChunk<Chunk_t, FreeList_t>::min_size())), |
78 "Chunk is too small for a TreeChunk"); | |
79 TreeList<Chunk_t, FreeList_t>* tl = tc->embedded_list(); | |
80 tl->initialize(); | |
0 | 81 tc->set_list(tl); |
82 tl->set_size(tc->size()); | |
83 tl->link_head(tc); | |
84 tl->link_tail(tc); | |
85 tl->set_count(1); | |
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86 assert(tl->parent() == NULL, "Should be clear"); |
6885 | 87 return tl; |
88 } | |
89 | |
90 | |
91 template <class Chunk_t, template <class> class FreeList_t> | |
92 TreeList<Chunk_t, FreeList_t>* | |
93 get_chunk(size_t size, enum FreeBlockDictionary<Chunk_t>::Dither dither) { | |
94 FreeBlockDictionary<Chunk_t>::verify_par_locked(); | |
95 Chunk_t* res = get_chunk_from_tree(size, dither); | |
96 assert(res == NULL || res->is_free(), | |
97 "Should be returning a free chunk"); | |
98 assert(dither != FreeBlockDictionary<Chunk_t>::exactly || | |
99 res->size() == size, "Not correct size"); | |
100 return res; | |
101 } | |
102 | |
103 template <class Chunk_t, template <class> class FreeList_t> | |
104 TreeList<Chunk_t, FreeList_t>* | |
105 TreeList<Chunk_t, FreeList_t>::as_TreeList(HeapWord* addr, size_t size) { | |
106 TreeChunk<Chunk_t, FreeList_t>* tc = (TreeChunk<Chunk_t, FreeList_t>*) addr; | |
107 assert((size >= TreeChunk<Chunk_t, FreeList_t>::min_size()), | |
108 "Chunk is too small for a TreeChunk"); | |
109 // The space will have been mangled initially but | |
110 // is not remangled when a Chunk_t is returned to the free list | |
111 // (since it is used to maintain the chunk on the free list). | |
112 tc->assert_is_mangled(); | |
113 tc->set_size(size); | |
114 tc->link_prev(NULL); | |
115 tc->link_next(NULL); | |
116 TreeList<Chunk_t, FreeList_t>* tl = TreeList<Chunk_t, FreeList_t>::as_TreeList(tc); | |
0 | 117 return tl; |
118 } | |
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119 |
6885 | 120 |
121 #ifndef SERIALGC | |
122 // Specialize for AdaptiveFreeList which tries to avoid | |
123 // splitting a chunk of a size that is under populated in favor of | |
124 // an over populated size. The general get_better_list() just returns | |
125 // the current list. | |
126 template <> | |
127 TreeList<FreeChunk, AdaptiveFreeList>* | |
128 TreeList<FreeChunk, AdaptiveFreeList>::get_better_list( | |
129 BinaryTreeDictionary<FreeChunk, ::AdaptiveFreeList>* dictionary) { | |
130 // A candidate chunk has been found. If it is already under | |
131 // populated, get a chunk associated with the hint for this | |
132 // chunk. | |
133 | |
134 TreeList<FreeChunk, ::AdaptiveFreeList>* curTL = this; | |
135 if (surplus() <= 0) { | |
136 /* Use the hint to find a size with a surplus, and reset the hint. */ | |
137 TreeList<FreeChunk, ::AdaptiveFreeList>* hintTL = this; | |
138 while (hintTL->hint() != 0) { | |
139 assert(hintTL->hint() > hintTL->size(), | |
140 "hint points in the wrong direction"); | |
141 hintTL = dictionary->find_list(hintTL->hint()); | |
142 assert(curTL != hintTL, "Infinite loop"); | |
143 if (hintTL == NULL || | |
144 hintTL == curTL /* Should not happen but protect against it */ ) { | |
145 // No useful hint. Set the hint to NULL and go on. | |
146 curTL->set_hint(0); | |
147 break; | |
148 } | |
149 assert(hintTL->size() > curTL->size(), "hint is inconsistent"); | |
150 if (hintTL->surplus() > 0) { | |
151 // The hint led to a list that has a surplus. Use it. | |
152 // Set the hint for the candidate to an overpopulated | |
153 // size. | |
154 curTL->set_hint(hintTL->size()); | |
155 // Change the candidate. | |
156 curTL = hintTL; | |
157 break; | |
158 } | |
159 } | |
160 } | |
161 return curTL; | |
162 } | |
163 #endif // SERIALGC | |
164 | |
165 template <class Chunk_t, template <class> class FreeList_t> | |
166 TreeList<Chunk_t, FreeList_t>* | |
167 TreeList<Chunk_t, FreeList_t>::get_better_list( | |
168 BinaryTreeDictionary<Chunk_t, FreeList_t>* dictionary) { | |
169 return this; | |
0 | 170 } |
171 | |
6885 | 172 template <class Chunk_t, template <class> class FreeList_t> |
173 TreeList<Chunk_t, FreeList_t>* TreeList<Chunk_t, FreeList_t>::remove_chunk_replace_if_needed(TreeChunk<Chunk_t, FreeList_t>* tc) { | |
0 | 174 |
6885 | 175 TreeList<Chunk_t, FreeList_t>* retTL = this; |
176 Chunk_t* list = head(); | |
0 | 177 assert(!list || list != list->next(), "Chunk on list twice"); |
178 assert(tc != NULL, "Chunk being removed is NULL"); | |
179 assert(parent() == NULL || this == parent()->left() || | |
180 this == parent()->right(), "list is inconsistent"); | |
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181 assert(tc->is_free(), "Header is not marked correctly"); |
0 | 182 assert(head() == NULL || head()->prev() == NULL, "list invariant"); |
183 assert(tail() == NULL || tail()->next() == NULL, "list invariant"); | |
184 | |
6885 | 185 Chunk_t* prevFC = tc->prev(); |
186 TreeChunk<Chunk_t, FreeList_t>* nextTC = TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(tc->next()); | |
0 | 187 assert(list != NULL, "should have at least the target chunk"); |
188 | |
189 // Is this the first item on the list? | |
190 if (tc == list) { | |
6885 | 191 // The "getChunk..." functions for a TreeList<Chunk_t, FreeList_t> will not return the |
0 | 192 // first chunk in the list unless it is the last chunk in the list |
193 // because the first chunk is also acting as the tree node. | |
194 // When coalescing happens, however, the first chunk in the a tree | |
195 // list can be the start of a free range. Free ranges are removed | |
196 // from the free lists so that they are not available to be | |
197 // allocated when the sweeper yields (giving up the free list lock) | |
198 // to allow mutator activity. If this chunk is the first in the | |
199 // list and is not the last in the list, do the work to copy the | |
6885 | 200 // TreeList<Chunk_t, FreeList_t> from the first chunk to the next chunk and update all |
201 // the TreeList<Chunk_t, FreeList_t> pointers in the chunks in the list. | |
0 | 202 if (nextTC == NULL) { |
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203 assert(prevFC == NULL, "Not last chunk in the list"); |
0 | 204 set_tail(NULL); |
205 set_head(NULL); | |
206 } else { | |
207 // copy embedded list. | |
208 nextTC->set_embedded_list(tc->embedded_list()); | |
209 retTL = nextTC->embedded_list(); | |
210 // Fix the pointer to the list in each chunk in the list. | |
211 // This can be slow for a long list. Consider having | |
212 // an option that does not allow the first chunk on the | |
213 // list to be coalesced. | |
6885 | 214 for (TreeChunk<Chunk_t, FreeList_t>* curTC = nextTC; curTC != NULL; |
215 curTC = TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(curTC->next())) { | |
0 | 216 curTC->set_list(retTL); |
217 } | |
6885 | 218 // Fix the parent to point to the new TreeList<Chunk_t, FreeList_t>. |
0 | 219 if (retTL->parent() != NULL) { |
220 if (this == retTL->parent()->left()) { | |
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221 retTL->parent()->set_left(retTL); |
0 | 222 } else { |
223 assert(this == retTL->parent()->right(), "Parent is incorrect"); | |
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224 retTL->parent()->set_right(retTL); |
0 | 225 } |
226 } | |
227 // Fix the children's parent pointers to point to the | |
228 // new list. | |
229 assert(right() == retTL->right(), "Should have been copied"); | |
230 if (retTL->right() != NULL) { | |
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231 retTL->right()->set_parent(retTL); |
0 | 232 } |
233 assert(left() == retTL->left(), "Should have been copied"); | |
234 if (retTL->left() != NULL) { | |
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235 retTL->left()->set_parent(retTL); |
0 | 236 } |
237 retTL->link_head(nextTC); | |
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238 assert(nextTC->is_free(), "Should be a free chunk"); |
0 | 239 } |
240 } else { | |
241 if (nextTC == NULL) { | |
242 // Removing chunk at tail of list | |
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243 this->link_tail(prevFC); |
0 | 244 } |
245 // Chunk is interior to the list | |
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246 prevFC->link_after(nextTC); |
0 | 247 } |
248 | |
6885 | 249 // Below this point the embeded TreeList<Chunk_t, FreeList_t> being used for the |
0 | 250 // tree node may have changed. Don't use "this" |
6885 | 251 // TreeList<Chunk_t, FreeList_t>*. |
0 | 252 // chunk should still be a free chunk (bit set in _prev) |
253 assert(!retTL->head() || retTL->size() == retTL->head()->size(), | |
254 "Wrong sized chunk in list"); | |
255 debug_only( | |
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256 tc->link_prev(NULL); |
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257 tc->link_next(NULL); |
0 | 258 tc->set_list(NULL); |
259 bool prev_found = false; | |
260 bool next_found = false; | |
6885 | 261 for (Chunk_t* curFC = retTL->head(); |
0 | 262 curFC != NULL; curFC = curFC->next()) { |
263 assert(curFC != tc, "Chunk is still in list"); | |
264 if (curFC == prevFC) { | |
265 prev_found = true; | |
266 } | |
267 if (curFC == nextTC) { | |
268 next_found = true; | |
269 } | |
270 } | |
271 assert(prevFC == NULL || prev_found, "Chunk was lost from list"); | |
272 assert(nextTC == NULL || next_found, "Chunk was lost from list"); | |
273 assert(retTL->parent() == NULL || | |
274 retTL == retTL->parent()->left() || | |
275 retTL == retTL->parent()->right(), | |
276 "list is inconsistent"); | |
277 ) | |
278 retTL->decrement_count(); | |
279 | |
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280 assert(tc->is_free(), "Should still be a free chunk"); |
0 | 281 assert(retTL->head() == NULL || retTL->head()->prev() == NULL, |
282 "list invariant"); | |
283 assert(retTL->tail() == NULL || retTL->tail()->next() == NULL, | |
284 "list invariant"); | |
285 return retTL; | |
286 } | |
6026 | 287 |
6885 | 288 template <class Chunk_t, template <class> class FreeList_t> |
289 void TreeList<Chunk_t, FreeList_t>::return_chunk_at_tail(TreeChunk<Chunk_t, FreeList_t>* chunk) { | |
0 | 290 assert(chunk != NULL, "returning NULL chunk"); |
291 assert(chunk->list() == this, "list should be set for chunk"); | |
292 assert(tail() != NULL, "The tree list is embedded in the first chunk"); | |
293 // which means that the list can never be empty. | |
7178 | 294 assert(!this->verify_chunk_in_free_list(chunk), "Double entry"); |
0 | 295 assert(head() == NULL || head()->prev() == NULL, "list invariant"); |
296 assert(tail() == NULL || tail()->next() == NULL, "list invariant"); | |
297 | |
6885 | 298 Chunk_t* fc = tail(); |
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299 fc->link_after(chunk); |
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300 this->link_tail(chunk); |
0 | 301 |
302 assert(!tail() || size() == tail()->size(), "Wrong sized chunk in list"); | |
6885 | 303 FreeList_t<Chunk_t>::increment_count(); |
7178 | 304 debug_only(this->increment_returned_bytes_by(chunk->size()*sizeof(HeapWord));) |
0 | 305 assert(head() == NULL || head()->prev() == NULL, "list invariant"); |
306 assert(tail() == NULL || tail()->next() == NULL, "list invariant"); | |
307 } | |
308 | |
309 // Add this chunk at the head of the list. "At the head of the list" | |
310 // is defined to be after the chunk pointer to by head(). This is | |
6885 | 311 // because the TreeList<Chunk_t, FreeList_t> is embedded in the first TreeChunk<Chunk_t, FreeList_t> in the |
312 // list. See the definition of TreeChunk<Chunk_t, FreeList_t>. | |
313 template <class Chunk_t, template <class> class FreeList_t> | |
314 void TreeList<Chunk_t, FreeList_t>::return_chunk_at_head(TreeChunk<Chunk_t, FreeList_t>* chunk) { | |
0 | 315 assert(chunk->list() == this, "list should be set for chunk"); |
316 assert(head() != NULL, "The tree list is embedded in the first chunk"); | |
317 assert(chunk != NULL, "returning NULL chunk"); | |
7178 | 318 assert(!this->verify_chunk_in_free_list(chunk), "Double entry"); |
0 | 319 assert(head() == NULL || head()->prev() == NULL, "list invariant"); |
320 assert(tail() == NULL || tail()->next() == NULL, "list invariant"); | |
321 | |
6885 | 322 Chunk_t* fc = head()->next(); |
0 | 323 if (fc != NULL) { |
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324 chunk->link_after(fc); |
0 | 325 } else { |
326 assert(tail() == NULL, "List is inconsistent"); | |
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327 this->link_tail(chunk); |
0 | 328 } |
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329 head()->link_after(chunk); |
0 | 330 assert(!head() || size() == head()->size(), "Wrong sized chunk in list"); |
6885 | 331 FreeList_t<Chunk_t>::increment_count(); |
7178 | 332 debug_only(this->increment_returned_bytes_by(chunk->size()*sizeof(HeapWord));) |
0 | 333 assert(head() == NULL || head()->prev() == NULL, "list invariant"); |
334 assert(tail() == NULL || tail()->next() == NULL, "list invariant"); | |
335 } | |
336 | |
6885 | 337 template <class Chunk_t, template <class> class FreeList_t> |
338 void TreeChunk<Chunk_t, FreeList_t>::assert_is_mangled() const { | |
339 assert((ZapUnusedHeapArea && | |
340 SpaceMangler::is_mangled((HeapWord*) Chunk_t::size_addr()) && | |
341 SpaceMangler::is_mangled((HeapWord*) Chunk_t::prev_addr()) && | |
342 SpaceMangler::is_mangled((HeapWord*) Chunk_t::next_addr())) || | |
343 (size() == 0 && prev() == NULL && next() == NULL), | |
344 "Space should be clear or mangled"); | |
0 | 345 } |
346 | |
6885 | 347 template <class Chunk_t, template <class> class FreeList_t> |
348 TreeChunk<Chunk_t, FreeList_t>* TreeList<Chunk_t, FreeList_t>::head_as_TreeChunk() { | |
349 assert(head() == NULL || (TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(head())->list() == this), | |
350 "Wrong type of chunk?"); | |
351 return TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(head()); | |
352 } | |
353 | |
354 template <class Chunk_t, template <class> class FreeList_t> | |
355 TreeChunk<Chunk_t, FreeList_t>* TreeList<Chunk_t, FreeList_t>::first_available() { | |
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356 assert(head() != NULL, "The head of the list cannot be NULL"); |
6885 | 357 Chunk_t* fc = head()->next(); |
358 TreeChunk<Chunk_t, FreeList_t>* retTC; | |
0 | 359 if (fc == NULL) { |
360 retTC = head_as_TreeChunk(); | |
361 } else { | |
6885 | 362 retTC = TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(fc); |
0 | 363 } |
364 assert(retTC->list() == this, "Wrong type of chunk."); | |
365 return retTC; | |
366 } | |
367 | |
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368 // Returns the block with the largest heap address amongst |
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369 // those in the list for this size; potentially slow and expensive, |
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370 // use with caution! |
6885 | 371 template <class Chunk_t, template <class> class FreeList_t> |
372 TreeChunk<Chunk_t, FreeList_t>* TreeList<Chunk_t, FreeList_t>::largest_address() { | |
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373 assert(head() != NULL, "The head of the list cannot be NULL"); |
6885 | 374 Chunk_t* fc = head()->next(); |
375 TreeChunk<Chunk_t, FreeList_t>* retTC; | |
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376 if (fc == NULL) { |
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377 retTC = head_as_TreeChunk(); |
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378 } else { |
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379 // walk down the list and return the one with the highest |
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380 // heap address among chunks of this size. |
6885 | 381 Chunk_t* last = fc; |
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382 while (fc->next() != NULL) { |
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383 if ((HeapWord*)last < (HeapWord*)fc) { |
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384 last = fc; |
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385 } |
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386 fc = fc->next(); |
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387 } |
6885 | 388 retTC = TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(last); |
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389 } |
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390 assert(retTC->list() == this, "Wrong type of chunk."); |
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391 return retTC; |
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392 } |
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393 |
6885 | 394 template <class Chunk_t, template <class> class FreeList_t> |
395 BinaryTreeDictionary<Chunk_t, FreeList_t>::BinaryTreeDictionary(MemRegion mr) { | |
396 assert((mr.byte_size() > min_size()), "minimum chunk size"); | |
0 | 397 |
398 reset(mr); | |
399 assert(root()->left() == NULL, "reset check failed"); | |
400 assert(root()->right() == NULL, "reset check failed"); | |
401 assert(root()->head()->next() == NULL, "reset check failed"); | |
402 assert(root()->head()->prev() == NULL, "reset check failed"); | |
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403 assert(total_size() == root()->size(), "reset check failed"); |
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404 assert(total_free_blocks() == 1, "reset check failed"); |
0 | 405 } |
406 | |
6885 | 407 template <class Chunk_t, template <class> class FreeList_t> |
408 void BinaryTreeDictionary<Chunk_t, FreeList_t>::inc_total_size(size_t inc) { | |
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409 _total_size = _total_size + inc; |
0 | 410 } |
411 | |
6885 | 412 template <class Chunk_t, template <class> class FreeList_t> |
413 void BinaryTreeDictionary<Chunk_t, FreeList_t>::dec_total_size(size_t dec) { | |
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414 _total_size = _total_size - dec; |
0 | 415 } |
416 | |
6885 | 417 template <class Chunk_t, template <class> class FreeList_t> |
418 void BinaryTreeDictionary<Chunk_t, FreeList_t>::reset(MemRegion mr) { | |
419 assert((mr.byte_size() > min_size()), "minimum chunk size"); | |
420 set_root(TreeList<Chunk_t, FreeList_t>::as_TreeList(mr.start(), mr.word_size())); | |
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421 set_total_size(mr.word_size()); |
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422 set_total_free_blocks(1); |
0 | 423 } |
424 | |
6885 | 425 template <class Chunk_t, template <class> class FreeList_t> |
426 void BinaryTreeDictionary<Chunk_t, FreeList_t>::reset(HeapWord* addr, size_t byte_size) { | |
0 | 427 MemRegion mr(addr, heap_word_size(byte_size)); |
428 reset(mr); | |
429 } | |
430 | |
6885 | 431 template <class Chunk_t, template <class> class FreeList_t> |
432 void BinaryTreeDictionary<Chunk_t, FreeList_t>::reset() { | |
0 | 433 set_root(NULL); |
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434 set_total_size(0); |
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435 set_total_free_blocks(0); |
0 | 436 } |
437 | |
438 // Get a free block of size at least size from tree, or NULL. | |
6885 | 439 template <class Chunk_t, template <class> class FreeList_t> |
440 TreeChunk<Chunk_t, FreeList_t>* | |
441 BinaryTreeDictionary<Chunk_t, FreeList_t>::get_chunk_from_tree( | |
442 size_t size, | |
443 enum FreeBlockDictionary<Chunk_t>::Dither dither) | |
0 | 444 { |
6885 | 445 TreeList<Chunk_t, FreeList_t> *curTL, *prevTL; |
446 TreeChunk<Chunk_t, FreeList_t>* retTC = NULL; | |
447 | |
448 assert((size >= min_size()), "minimum chunk size"); | |
0 | 449 if (FLSVerifyDictionary) { |
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450 verify_tree(); |
0 | 451 } |
452 // starting at the root, work downwards trying to find match. | |
453 // Remember the last node of size too great or too small. | |
454 for (prevTL = curTL = root(); curTL != NULL;) { | |
455 if (curTL->size() == size) { // exact match | |
456 break; | |
457 } | |
458 prevTL = curTL; | |
459 if (curTL->size() < size) { // proceed to right sub-tree | |
460 curTL = curTL->right(); | |
461 } else { // proceed to left sub-tree | |
462 assert(curTL->size() > size, "size inconsistency"); | |
463 curTL = curTL->left(); | |
464 } | |
465 } | |
466 if (curTL == NULL) { // couldn't find exact match | |
6026 | 467 |
6885 | 468 if (dither == FreeBlockDictionary<Chunk_t>::exactly) return NULL; |
6026 | 469 |
0 | 470 // try and find the next larger size by walking back up the search path |
471 for (curTL = prevTL; curTL != NULL;) { | |
472 if (curTL->size() >= size) break; | |
473 else curTL = curTL->parent(); | |
474 } | |
475 assert(curTL == NULL || curTL->count() > 0, | |
476 "An empty list should not be in the tree"); | |
477 } | |
478 if (curTL != NULL) { | |
479 assert(curTL->size() >= size, "size inconsistency"); | |
480 | |
6885 | 481 curTL = curTL->get_better_list(this); |
482 | |
0 | 483 retTC = curTL->first_available(); |
484 assert((retTC != NULL) && (curTL->count() > 0), | |
485 "A list in the binary tree should not be NULL"); | |
486 assert(retTC->size() >= size, | |
487 "A chunk of the wrong size was found"); | |
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488 remove_chunk_from_tree(retTC); |
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489 assert(retTC->is_free(), "Header is not marked correctly"); |
0 | 490 } |
491 | |
492 if (FLSVerifyDictionary) { | |
493 verify(); | |
494 } | |
495 return retTC; | |
496 } | |
497 | |
6885 | 498 template <class Chunk_t, template <class> class FreeList_t> |
499 TreeList<Chunk_t, FreeList_t>* BinaryTreeDictionary<Chunk_t, FreeList_t>::find_list(size_t size) const { | |
500 TreeList<Chunk_t, FreeList_t>* curTL; | |
0 | 501 for (curTL = root(); curTL != NULL;) { |
502 if (curTL->size() == size) { // exact match | |
503 break; | |
504 } | |
505 | |
506 if (curTL->size() < size) { // proceed to right sub-tree | |
507 curTL = curTL->right(); | |
508 } else { // proceed to left sub-tree | |
509 assert(curTL->size() > size, "size inconsistency"); | |
510 curTL = curTL->left(); | |
511 } | |
512 } | |
513 return curTL; | |
514 } | |
515 | |
516 | |
6885 | 517 template <class Chunk_t, template <class> class FreeList_t> |
518 bool BinaryTreeDictionary<Chunk_t, FreeList_t>::verify_chunk_in_free_list(Chunk_t* tc) const { | |
0 | 519 size_t size = tc->size(); |
6885 | 520 TreeList<Chunk_t, FreeList_t>* tl = find_list(size); |
0 | 521 if (tl == NULL) { |
522 return false; | |
523 } else { | |
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524 return tl->verify_chunk_in_free_list(tc); |
0 | 525 } |
526 } | |
527 | |
6885 | 528 template <class Chunk_t, template <class> class FreeList_t> |
529 Chunk_t* BinaryTreeDictionary<Chunk_t, FreeList_t>::find_largest_dict() const { | |
530 TreeList<Chunk_t, FreeList_t> *curTL = root(); | |
0 | 531 if (curTL != NULL) { |
532 while(curTL->right() != NULL) curTL = curTL->right(); | |
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533 return curTL->largest_address(); |
0 | 534 } else { |
535 return NULL; | |
536 } | |
537 } | |
538 | |
539 // Remove the current chunk from the tree. If it is not the last | |
540 // chunk in a list on a tree node, just unlink it. | |
541 // If it is the last chunk in the list (the next link is NULL), | |
542 // remove the node and repair the tree. | |
6885 | 543 template <class Chunk_t, template <class> class FreeList_t> |
544 TreeChunk<Chunk_t, FreeList_t>* | |
545 BinaryTreeDictionary<Chunk_t, FreeList_t>::remove_chunk_from_tree(TreeChunk<Chunk_t, FreeList_t>* tc) { | |
0 | 546 assert(tc != NULL, "Should not call with a NULL chunk"); |
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547 assert(tc->is_free(), "Header is not marked correctly"); |
0 | 548 |
6885 | 549 TreeList<Chunk_t, FreeList_t> *newTL, *parentTL; |
550 TreeChunk<Chunk_t, FreeList_t>* retTC; | |
551 TreeList<Chunk_t, FreeList_t>* tl = tc->list(); | |
0 | 552 debug_only( |
553 bool removing_only_chunk = false; | |
554 if (tl == _root) { | |
555 if ((_root->left() == NULL) && (_root->right() == NULL)) { | |
556 if (_root->count() == 1) { | |
557 assert(_root->head() == tc, "Should only be this one chunk"); | |
558 removing_only_chunk = true; | |
559 } | |
560 } | |
561 } | |
562 ) | |
563 assert(tl != NULL, "List should be set"); | |
564 assert(tl->parent() == NULL || tl == tl->parent()->left() || | |
565 tl == tl->parent()->right(), "list is inconsistent"); | |
566 | |
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567 bool complicated_splice = false; |
0 | 568 |
569 retTC = tc; | |
570 // Removing this chunk can have the side effect of changing the node | |
6885 | 571 // (TreeList<Chunk_t, FreeList_t>*) in the tree. If the node is the root, update it. |
572 TreeList<Chunk_t, FreeList_t>* replacementTL = tl->remove_chunk_replace_if_needed(tc); | |
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573 assert(tc->is_free(), "Chunk should still be free"); |
0 | 574 assert(replacementTL->parent() == NULL || |
575 replacementTL == replacementTL->parent()->left() || | |
576 replacementTL == replacementTL->parent()->right(), | |
577 "list is inconsistent"); | |
578 if (tl == root()) { | |
579 assert(replacementTL->parent() == NULL, "Incorrectly replacing root"); | |
580 set_root(replacementTL); | |
581 } | |
6885 | 582 #ifdef ASSERT |
0 | 583 if (tl != replacementTL) { |
584 assert(replacementTL->head() != NULL, | |
585 "If the tree list was replaced, it should not be a NULL list"); | |
6885 | 586 TreeList<Chunk_t, FreeList_t>* rhl = replacementTL->head_as_TreeChunk()->list(); |
587 TreeList<Chunk_t, FreeList_t>* rtl = | |
588 TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(replacementTL->tail())->list(); | |
0 | 589 assert(rhl == replacementTL, "Broken head"); |
590 assert(rtl == replacementTL, "Broken tail"); | |
591 assert(replacementTL->size() == tc->size(), "Broken size"); | |
592 } | |
6885 | 593 #endif |
0 | 594 |
595 // Does the tree need to be repaired? | |
596 if (replacementTL->count() == 0) { | |
597 assert(replacementTL->head() == NULL && | |
598 replacementTL->tail() == NULL, "list count is incorrect"); | |
599 // Find the replacement node for the (soon to be empty) node being removed. | |
600 // if we have a single (or no) child, splice child in our stead | |
601 if (replacementTL->left() == NULL) { | |
602 // left is NULL so pick right. right may also be NULL. | |
603 newTL = replacementTL->right(); | |
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604 debug_only(replacementTL->clear_right();) |
0 | 605 } else if (replacementTL->right() == NULL) { |
606 // right is NULL | |
607 newTL = replacementTL->left(); | |
6885 | 608 debug_only(replacementTL->clear_left();) |
0 | 609 } else { // we have both children, so, by patriarchal convention, |
610 // my replacement is least node in right sub-tree | |
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611 complicated_splice = true; |
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612 newTL = remove_tree_minimum(replacementTL->right()); |
0 | 613 assert(newTL != NULL && newTL->left() == NULL && |
614 newTL->right() == NULL, "sub-tree minimum exists"); | |
615 } | |
616 // newTL is the replacement for the (soon to be empty) node. | |
617 // newTL may be NULL. | |
618 // should verify; we just cleanly excised our replacement | |
619 if (FLSVerifyDictionary) { | |
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620 verify_tree(); |
0 | 621 } |
622 // first make newTL my parent's child | |
623 if ((parentTL = replacementTL->parent()) == NULL) { | |
624 // newTL should be root | |
625 assert(tl == root(), "Incorrectly replacing root"); | |
626 set_root(newTL); | |
627 if (newTL != NULL) { | |
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628 newTL->clear_parent(); |
0 | 629 } |
630 } else if (parentTL->right() == replacementTL) { | |
631 // replacementTL is a right child | |
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632 parentTL->set_right(newTL); |
0 | 633 } else { // replacementTL is a left child |
634 assert(parentTL->left() == replacementTL, "should be left child"); | |
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635 parentTL->set_left(newTL); |
0 | 636 } |
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637 debug_only(replacementTL->clear_parent();) |
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638 if (complicated_splice) { // we need newTL to get replacementTL's |
0 | 639 // two children |
640 assert(newTL != NULL && | |
641 newTL->left() == NULL && newTL->right() == NULL, | |
642 "newTL should not have encumbrances from the past"); | |
643 // we'd like to assert as below: | |
644 // assert(replacementTL->left() != NULL && replacementTL->right() != NULL, | |
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645 // "else !complicated_splice"); |
0 | 646 // ... however, the above assertion is too strong because we aren't |
647 // guaranteed that replacementTL->right() is still NULL. | |
648 // Recall that we removed | |
649 // the right sub-tree minimum from replacementTL. | |
650 // That may well have been its right | |
651 // child! So we'll just assert half of the above: | |
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652 assert(replacementTL->left() != NULL, "else !complicated_splice"); |
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653 newTL->set_left(replacementTL->left()); |
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654 newTL->set_right(replacementTL->right()); |
0 | 655 debug_only( |
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656 replacementTL->clear_right(); |
6885 | 657 replacementTL->clear_left(); |
0 | 658 ) |
659 } | |
660 assert(replacementTL->right() == NULL && | |
661 replacementTL->left() == NULL && | |
662 replacementTL->parent() == NULL, | |
663 "delete without encumbrances"); | |
664 } | |
665 | |
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666 assert(total_size() >= retTC->size(), "Incorrect total size"); |
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667 dec_total_size(retTC->size()); // size book-keeping |
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668 assert(total_free_blocks() > 0, "Incorrect total count"); |
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669 set_total_free_blocks(total_free_blocks() - 1); |
0 | 670 |
671 assert(retTC != NULL, "null chunk?"); | |
672 assert(retTC->prev() == NULL && retTC->next() == NULL, | |
673 "should return without encumbrances"); | |
674 if (FLSVerifyDictionary) { | |
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675 verify_tree(); |
0 | 676 } |
677 assert(!removing_only_chunk || _root == NULL, "root should be NULL"); | |
6885 | 678 return TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(retTC); |
0 | 679 } |
680 | |
681 // Remove the leftmost node (lm) in the tree and return it. | |
682 // If lm has a right child, link it to the left node of | |
683 // the parent of lm. | |
6885 | 684 template <class Chunk_t, template <class> class FreeList_t> |
685 TreeList<Chunk_t, FreeList_t>* BinaryTreeDictionary<Chunk_t, FreeList_t>::remove_tree_minimum(TreeList<Chunk_t, FreeList_t>* tl) { | |
0 | 686 assert(tl != NULL && tl->parent() != NULL, "really need a proper sub-tree"); |
687 // locate the subtree minimum by walking down left branches | |
6885 | 688 TreeList<Chunk_t, FreeList_t>* curTL = tl; |
0 | 689 for (; curTL->left() != NULL; curTL = curTL->left()); |
690 // obviously curTL now has at most one child, a right child | |
691 if (curTL != root()) { // Should this test just be removed? | |
6885 | 692 TreeList<Chunk_t, FreeList_t>* parentTL = curTL->parent(); |
0 | 693 if (parentTL->left() == curTL) { // curTL is a left child |
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694 parentTL->set_left(curTL->right()); |
0 | 695 } else { |
696 // If the list tl has no left child, then curTL may be | |
697 // the right child of parentTL. | |
698 assert(parentTL->right() == curTL, "should be a right child"); | |
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699 parentTL->set_right(curTL->right()); |
0 | 700 } |
701 } else { | |
702 // The only use of this method would not pass the root of the | |
703 // tree (as indicated by the assertion above that the tree list | |
704 // has a parent) but the specification does not explicitly exclude the | |
705 // passing of the root so accomodate it. | |
706 set_root(NULL); | |
707 } | |
708 debug_only( | |
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709 curTL->clear_parent(); // Test if this needs to be cleared |
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710 curTL->clear_right(); // recall, above, left child is already null |
0 | 711 ) |
712 // we just excised a (non-root) node, we should still verify all tree invariants | |
713 if (FLSVerifyDictionary) { | |
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714 verify_tree(); |
0 | 715 } |
716 return curTL; | |
717 } | |
718 | |
6885 | 719 template <class Chunk_t, template <class> class FreeList_t> |
720 void BinaryTreeDictionary<Chunk_t, FreeList_t>::insert_chunk_in_tree(Chunk_t* fc) { | |
721 TreeList<Chunk_t, FreeList_t> *curTL, *prevTL; | |
0 | 722 size_t size = fc->size(); |
723 | |
6885 | 724 assert((size >= min_size()), |
725 err_msg(SIZE_FORMAT " is too small to be a TreeChunk<Chunk_t, FreeList_t> " SIZE_FORMAT, | |
726 size, min_size())); | |
0 | 727 if (FLSVerifyDictionary) { |
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728 verify_tree(); |
0 | 729 } |
730 | |
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731 fc->clear_next(); |
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732 fc->link_prev(NULL); |
0 | 733 |
734 // work down from the _root, looking for insertion point | |
735 for (prevTL = curTL = root(); curTL != NULL;) { | |
736 if (curTL->size() == size) // exact match | |
737 break; | |
738 prevTL = curTL; | |
739 if (curTL->size() > size) { // follow left branch | |
740 curTL = curTL->left(); | |
741 } else { // follow right branch | |
742 assert(curTL->size() < size, "size inconsistency"); | |
743 curTL = curTL->right(); | |
744 } | |
745 } | |
6885 | 746 TreeChunk<Chunk_t, FreeList_t>* tc = TreeChunk<Chunk_t, FreeList_t>::as_TreeChunk(fc); |
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747 // This chunk is being returned to the binary tree. Its embedded |
6885 | 748 // TreeList<Chunk_t, FreeList_t> should be unused at this point. |
0 | 749 tc->initialize(); |
750 if (curTL != NULL) { // exact match | |
751 tc->set_list(curTL); | |
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752 curTL->return_chunk_at_tail(tc); |
0 | 753 } else { // need a new node in tree |
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754 tc->clear_next(); |
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755 tc->link_prev(NULL); |
6885 | 756 TreeList<Chunk_t, FreeList_t>* newTL = TreeList<Chunk_t, FreeList_t>::as_TreeList(tc); |
757 assert(((TreeChunk<Chunk_t, FreeList_t>*)tc)->list() == newTL, | |
0 | 758 "List was not initialized correctly"); |
759 if (prevTL == NULL) { // we are the only tree node | |
760 assert(root() == NULL, "control point invariant"); | |
761 set_root(newTL); | |
762 } else { // insert under prevTL ... | |
763 if (prevTL->size() < size) { // am right child | |
764 assert(prevTL->right() == NULL, "control point invariant"); | |
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765 prevTL->set_right(newTL); |
0 | 766 } else { // am left child |
767 assert(prevTL->size() > size && prevTL->left() == NULL, "cpt pt inv"); | |
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768 prevTL->set_left(newTL); |
0 | 769 } |
770 } | |
771 } | |
772 assert(tc->list() != NULL, "Tree list should be set"); | |
773 | |
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774 inc_total_size(size); |
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775 // Method 'total_size_in_tree' walks through the every block in the |
0 | 776 // tree, so it can cause significant performance loss if there are |
777 // many blocks in the tree | |
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778 assert(!FLSVerifyDictionary || total_size_in_tree(root()) == total_size(), "_total_size inconsistency"); |
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779 set_total_free_blocks(total_free_blocks() + 1); |
0 | 780 if (FLSVerifyDictionary) { |
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781 verify_tree(); |
0 | 782 } |
783 } | |
784 | |
6885 | 785 template <class Chunk_t, template <class> class FreeList_t> |
786 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::max_chunk_size() const { | |
787 FreeBlockDictionary<Chunk_t>::verify_par_locked(); | |
788 TreeList<Chunk_t, FreeList_t>* tc = root(); | |
0 | 789 if (tc == NULL) return 0; |
790 for (; tc->right() != NULL; tc = tc->right()); | |
791 return tc->size(); | |
792 } | |
793 | |
6885 | 794 template <class Chunk_t, template <class> class FreeList_t> |
795 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::total_list_length(TreeList<Chunk_t, FreeList_t>* tl) const { | |
0 | 796 size_t res; |
797 res = tl->count(); | |
798 #ifdef ASSERT | |
799 size_t cnt; | |
6885 | 800 Chunk_t* tc = tl->head(); |
0 | 801 for (cnt = 0; tc != NULL; tc = tc->next(), cnt++); |
802 assert(res == cnt, "The count is not being maintained correctly"); | |
803 #endif | |
804 return res; | |
805 } | |
806 | |
6885 | 807 template <class Chunk_t, template <class> class FreeList_t> |
808 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::total_size_in_tree(TreeList<Chunk_t, FreeList_t>* tl) const { | |
0 | 809 if (tl == NULL) |
810 return 0; | |
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811 return (tl->size() * total_list_length(tl)) + |
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812 total_size_in_tree(tl->left()) + |
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813 total_size_in_tree(tl->right()); |
0 | 814 } |
815 | |
6885 | 816 template <class Chunk_t, template <class> class FreeList_t> |
817 double BinaryTreeDictionary<Chunk_t, FreeList_t>::sum_of_squared_block_sizes(TreeList<Chunk_t, FreeList_t>* const tl) const { | |
0 | 818 if (tl == NULL) { |
819 return 0.0; | |
820 } | |
821 double size = (double)(tl->size()); | |
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822 double curr = size * size * total_list_length(tl); |
0 | 823 curr += sum_of_squared_block_sizes(tl->left()); |
824 curr += sum_of_squared_block_sizes(tl->right()); | |
825 return curr; | |
826 } | |
827 | |
6885 | 828 template <class Chunk_t, template <class> class FreeList_t> |
829 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::total_free_blocks_in_tree(TreeList<Chunk_t, FreeList_t>* tl) const { | |
0 | 830 if (tl == NULL) |
831 return 0; | |
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832 return total_list_length(tl) + |
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833 total_free_blocks_in_tree(tl->left()) + |
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834 total_free_blocks_in_tree(tl->right()); |
0 | 835 } |
836 | |
6885 | 837 template <class Chunk_t, template <class> class FreeList_t> |
838 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::num_free_blocks() const { | |
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839 assert(total_free_blocks_in_tree(root()) == total_free_blocks(), |
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840 "_total_free_blocks inconsistency"); |
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841 return total_free_blocks(); |
0 | 842 } |
843 | |
6885 | 844 template <class Chunk_t, template <class> class FreeList_t> |
845 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::tree_height_helper(TreeList<Chunk_t, FreeList_t>* tl) const { | |
0 | 846 if (tl == NULL) |
847 return 0; | |
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848 return 1 + MAX2(tree_height_helper(tl->left()), |
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849 tree_height_helper(tl->right())); |
0 | 850 } |
851 | |
6885 | 852 template <class Chunk_t, template <class> class FreeList_t> |
853 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::tree_height() const { | |
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854 return tree_height_helper(root()); |
0 | 855 } |
856 | |
6885 | 857 template <class Chunk_t, template <class> class FreeList_t> |
858 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::total_nodes_helper(TreeList<Chunk_t, FreeList_t>* tl) const { | |
0 | 859 if (tl == NULL) { |
860 return 0; | |
861 } | |
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862 return 1 + total_nodes_helper(tl->left()) + |
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863 total_nodes_helper(tl->right()); |
0 | 864 } |
865 | |
6885 | 866 template <class Chunk_t, template <class> class FreeList_t> |
867 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::total_nodes_in_tree(TreeList<Chunk_t, FreeList_t>* tl) const { | |
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868 return total_nodes_helper(root()); |
0 | 869 } |
870 | |
6885 | 871 template <class Chunk_t, template <class> class FreeList_t> |
872 void BinaryTreeDictionary<Chunk_t, FreeList_t>::dict_census_update(size_t size, bool split, bool birth){} | |
873 | |
874 #ifndef SERIALGC | |
875 template <> | |
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876 void AFLBinaryTreeDictionary::dict_census_update(size_t size, bool split, bool birth){ |
6885 | 877 TreeList<FreeChunk, AdaptiveFreeList>* nd = find_list(size); |
0 | 878 if (nd) { |
879 if (split) { | |
880 if (birth) { | |
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881 nd->increment_split_births(); |
0 | 882 nd->increment_surplus(); |
883 } else { | |
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884 nd->increment_split_deaths(); |
0 | 885 nd->decrement_surplus(); |
886 } | |
887 } else { | |
888 if (birth) { | |
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889 nd->increment_coal_births(); |
0 | 890 nd->increment_surplus(); |
891 } else { | |
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892 nd->increment_coal_deaths(); |
0 | 893 nd->decrement_surplus(); |
894 } | |
895 } | |
896 } | |
897 // A list for this size may not be found (nd == 0) if | |
898 // This is a death where the appropriate list is now | |
899 // empty and has been removed from the list. | |
900 // This is a birth associated with a LinAB. The chunk | |
901 // for the LinAB is not in the dictionary. | |
902 } | |
6885 | 903 #endif // SERIALGC |
0 | 904 |
6885 | 905 template <class Chunk_t, template <class> class FreeList_t> |
906 bool BinaryTreeDictionary<Chunk_t, FreeList_t>::coal_dict_over_populated(size_t size) { | |
907 // For the general type of freelists, encourage coalescing by | |
908 // returning true. | |
909 return true; | |
910 } | |
911 | |
912 #ifndef SERIALGC | |
913 template <> | |
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914 bool AFLBinaryTreeDictionary::coal_dict_over_populated(size_t size) { |
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915 if (FLSAlwaysCoalesceLarge) return true; |
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916 |
6885 | 917 TreeList<FreeChunk, AdaptiveFreeList>* list_of_size = find_list(size); |
0 | 918 // None of requested size implies overpopulated. |
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919 return list_of_size == NULL || list_of_size->coal_desired() <= 0 || |
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920 list_of_size->count() > list_of_size->coal_desired(); |
0 | 921 } |
6885 | 922 #endif // SERIALGC |
0 | 923 |
924 // Closures for walking the binary tree. | |
925 // do_list() walks the free list in a node applying the closure | |
926 // to each free chunk in the list | |
927 // do_tree() walks the nodes in the binary tree applying do_list() | |
928 // to each list at each node. | |
929 | |
6885 | 930 template <class Chunk_t, template <class> class FreeList_t> |
0 | 931 class TreeCensusClosure : public StackObj { |
932 protected: | |
6885 | 933 virtual void do_list(FreeList_t<Chunk_t>* fl) = 0; |
0 | 934 public: |
6885 | 935 virtual void do_tree(TreeList<Chunk_t, FreeList_t>* tl) = 0; |
0 | 936 }; |
937 | |
6885 | 938 template <class Chunk_t, template <class> class FreeList_t> |
939 class AscendTreeCensusClosure : public TreeCensusClosure<Chunk_t, FreeList_t> { | |
0 | 940 public: |
6885 | 941 void do_tree(TreeList<Chunk_t, FreeList_t>* tl) { |
0 | 942 if (tl != NULL) { |
943 do_tree(tl->left()); | |
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944 this->do_list(tl); |
0 | 945 do_tree(tl->right()); |
946 } | |
947 } | |
948 }; | |
949 | |
6885 | 950 template <class Chunk_t, template <class> class FreeList_t> |
951 class DescendTreeCensusClosure : public TreeCensusClosure<Chunk_t, FreeList_t> { | |
0 | 952 public: |
6885 | 953 void do_tree(TreeList<Chunk_t, FreeList_t>* tl) { |
0 | 954 if (tl != NULL) { |
955 do_tree(tl->right()); | |
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956 this->do_list(tl); |
0 | 957 do_tree(tl->left()); |
958 } | |
959 } | |
960 }; | |
961 | |
962 // For each list in the tree, calculate the desired, desired | |
963 // coalesce, count before sweep, and surplus before sweep. | |
6885 | 964 template <class Chunk_t, template <class> class FreeList_t> |
965 class BeginSweepClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
0 | 966 double _percentage; |
967 float _inter_sweep_current; | |
968 float _inter_sweep_estimate; | |
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969 float _intra_sweep_estimate; |
0 | 970 |
971 public: | |
972 BeginSweepClosure(double p, float inter_sweep_current, | |
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973 float inter_sweep_estimate, |
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974 float intra_sweep_estimate) : |
0 | 975 _percentage(p), |
976 _inter_sweep_current(inter_sweep_current), | |
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977 _inter_sweep_estimate(inter_sweep_estimate), |
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978 _intra_sweep_estimate(intra_sweep_estimate) { } |
0 | 979 |
6885 | 980 void do_list(FreeList<Chunk_t>* fl) {} |
981 | |
982 #ifndef SERIALGC | |
983 void do_list(AdaptiveFreeList<Chunk_t>* fl) { | |
0 | 984 double coalSurplusPercent = _percentage; |
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985 fl->compute_desired(_inter_sweep_current, _inter_sweep_estimate, _intra_sweep_estimate); |
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986 fl->set_coal_desired((ssize_t)((double)fl->desired() * coalSurplusPercent)); |
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987 fl->set_before_sweep(fl->count()); |
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988 fl->set_bfr_surp(fl->surplus()); |
0 | 989 } |
6885 | 990 #endif // SERIALGC |
0 | 991 }; |
992 | |
993 // Used to search the tree until a condition is met. | |
994 // Similar to TreeCensusClosure but searches the | |
995 // tree and returns promptly when found. | |
996 | |
6885 | 997 template <class Chunk_t, template <class> class FreeList_t> |
0 | 998 class TreeSearchClosure : public StackObj { |
999 protected: | |
6885 | 1000 virtual bool do_list(FreeList_t<Chunk_t>* fl) = 0; |
0 | 1001 public: |
6885 | 1002 virtual bool do_tree(TreeList<Chunk_t, FreeList_t>* tl) = 0; |
0 | 1003 }; |
1004 | |
1005 #if 0 // Don't need this yet but here for symmetry. | |
6885 | 1006 template <class Chunk_t, template <class> class FreeList_t> |
1007 class AscendTreeSearchClosure : public TreeSearchClosure<Chunk_t> { | |
0 | 1008 public: |
6885 | 1009 bool do_tree(TreeList<Chunk_t, FreeList_t>* tl) { |
0 | 1010 if (tl != NULL) { |
1011 if (do_tree(tl->left())) return true; | |
1012 if (do_list(tl)) return true; | |
1013 if (do_tree(tl->right())) return true; | |
1014 } | |
1015 return false; | |
1016 } | |
1017 }; | |
1018 #endif | |
1019 | |
6885 | 1020 template <class Chunk_t, template <class> class FreeList_t> |
1021 class DescendTreeSearchClosure : public TreeSearchClosure<Chunk_t, FreeList_t> { | |
0 | 1022 public: |
6885 | 1023 bool do_tree(TreeList<Chunk_t, FreeList_t>* tl) { |
0 | 1024 if (tl != NULL) { |
1025 if (do_tree(tl->right())) return true; | |
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1026 if (this->do_list(tl)) return true; |
0 | 1027 if (do_tree(tl->left())) return true; |
1028 } | |
1029 return false; | |
1030 } | |
1031 }; | |
1032 | |
1033 // Searches the tree for a chunk that ends at the | |
1034 // specified address. | |
6885 | 1035 template <class Chunk_t, template <class> class FreeList_t> |
1036 class EndTreeSearchClosure : public DescendTreeSearchClosure<Chunk_t, FreeList_t> { | |
0 | 1037 HeapWord* _target; |
6885 | 1038 Chunk_t* _found; |
0 | 1039 |
1040 public: | |
1041 EndTreeSearchClosure(HeapWord* target) : _target(target), _found(NULL) {} | |
6885 | 1042 bool do_list(FreeList_t<Chunk_t>* fl) { |
1043 Chunk_t* item = fl->head(); | |
0 | 1044 while (item != NULL) { |
6885 | 1045 if (item->end() == (uintptr_t*) _target) { |
0 | 1046 _found = item; |
1047 return true; | |
1048 } | |
1049 item = item->next(); | |
1050 } | |
1051 return false; | |
1052 } | |
6885 | 1053 Chunk_t* found() { return _found; } |
0 | 1054 }; |
1055 | |
6885 | 1056 template <class Chunk_t, template <class> class FreeList_t> |
1057 Chunk_t* BinaryTreeDictionary<Chunk_t, FreeList_t>::find_chunk_ends_at(HeapWord* target) const { | |
1058 EndTreeSearchClosure<Chunk_t, FreeList_t> etsc(target); | |
0 | 1059 bool found_target = etsc.do_tree(root()); |
1060 assert(found_target || etsc.found() == NULL, "Consistency check"); | |
1061 assert(!found_target || etsc.found() != NULL, "Consistency check"); | |
1062 return etsc.found(); | |
1063 } | |
1064 | |
6885 | 1065 template <class Chunk_t, template <class> class FreeList_t> |
1066 void BinaryTreeDictionary<Chunk_t, FreeList_t>::begin_sweep_dict_census(double coalSurplusPercent, | |
1145
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1067 float inter_sweep_current, float inter_sweep_estimate, float intra_sweep_estimate) { |
6885 | 1068 BeginSweepClosure<Chunk_t, FreeList_t> bsc(coalSurplusPercent, inter_sweep_current, |
1145
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1069 inter_sweep_estimate, |
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1070 intra_sweep_estimate); |
0 | 1071 bsc.do_tree(root()); |
1072 } | |
1073 | |
1074 // Closures and methods for calculating total bytes returned to the | |
1075 // free lists in the tree. | |
6026 | 1076 #ifndef PRODUCT |
6885 | 1077 template <class Chunk_t, template <class> class FreeList_t> |
1078 class InitializeDictReturnedBytesClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
0 | 1079 public: |
6885 | 1080 void do_list(FreeList_t<Chunk_t>* fl) { |
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1081 fl->set_returned_bytes(0); |
6026 | 1082 } |
1083 }; | |
0 | 1084 |
6885 | 1085 template <class Chunk_t, template <class> class FreeList_t> |
1086 void BinaryTreeDictionary<Chunk_t, FreeList_t>::initialize_dict_returned_bytes() { | |
1087 InitializeDictReturnedBytesClosure<Chunk_t, FreeList_t> idrb; | |
6026 | 1088 idrb.do_tree(root()); |
1089 } | |
0 | 1090 |
6885 | 1091 template <class Chunk_t, template <class> class FreeList_t> |
1092 class ReturnedBytesClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
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1093 size_t _dict_returned_bytes; |
6026 | 1094 public: |
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1095 ReturnedBytesClosure() { _dict_returned_bytes = 0; } |
6885 | 1096 void do_list(FreeList_t<Chunk_t>* fl) { |
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1097 _dict_returned_bytes += fl->returned_bytes(); |
6026 | 1098 } |
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1099 size_t dict_returned_bytes() { return _dict_returned_bytes; } |
6026 | 1100 }; |
0 | 1101 |
6885 | 1102 template <class Chunk_t, template <class> class FreeList_t> |
1103 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::sum_dict_returned_bytes() { | |
1104 ReturnedBytesClosure<Chunk_t, FreeList_t> rbc; | |
6026 | 1105 rbc.do_tree(root()); |
0 | 1106 |
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1107 return rbc.dict_returned_bytes(); |
6026 | 1108 } |
0 | 1109 |
6026 | 1110 // Count the number of entries in the tree. |
6885 | 1111 template <class Chunk_t, template <class> class FreeList_t> |
1112 class treeCountClosure : public DescendTreeCensusClosure<Chunk_t, FreeList_t> { | |
6026 | 1113 public: |
1114 uint count; | |
1115 treeCountClosure(uint c) { count = c; } | |
6885 | 1116 void do_list(FreeList_t<Chunk_t>* fl) { |
6026 | 1117 count++; |
1118 } | |
1119 }; | |
0 | 1120 |
6885 | 1121 template <class Chunk_t, template <class> class FreeList_t> |
1122 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::total_count() { | |
1123 treeCountClosure<Chunk_t, FreeList_t> ctc(0); | |
6026 | 1124 ctc.do_tree(root()); |
1125 return ctc.count; | |
1126 } | |
1127 #endif // PRODUCT | |
0 | 1128 |
1129 // Calculate surpluses for the lists in the tree. | |
6885 | 1130 template <class Chunk_t, template <class> class FreeList_t> |
1131 class setTreeSurplusClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
0 | 1132 double percentage; |
1133 public: | |
1134 setTreeSurplusClosure(double v) { percentage = v; } | |
6885 | 1135 void do_list(FreeList<Chunk_t>* fl) {} |
1136 | |
1137 #ifndef SERIALGC | |
1138 void do_list(AdaptiveFreeList<Chunk_t>* fl) { | |
0 | 1139 double splitSurplusPercent = percentage; |
1140 fl->set_surplus(fl->count() - | |
1141 (ssize_t)((double)fl->desired() * splitSurplusPercent)); | |
1142 } | |
6885 | 1143 #endif // SERIALGC |
0 | 1144 }; |
1145 | |
6885 | 1146 template <class Chunk_t, template <class> class FreeList_t> |
1147 void BinaryTreeDictionary<Chunk_t, FreeList_t>::set_tree_surplus(double splitSurplusPercent) { | |
1148 setTreeSurplusClosure<Chunk_t, FreeList_t> sts(splitSurplusPercent); | |
0 | 1149 sts.do_tree(root()); |
1150 } | |
1151 | |
1152 // Set hints for the lists in the tree. | |
6885 | 1153 template <class Chunk_t, template <class> class FreeList_t> |
1154 class setTreeHintsClosure : public DescendTreeCensusClosure<Chunk_t, FreeList_t> { | |
0 | 1155 size_t hint; |
1156 public: | |
1157 setTreeHintsClosure(size_t v) { hint = v; } | |
6885 | 1158 void do_list(FreeList<Chunk_t>* fl) {} |
1159 | |
1160 #ifndef SERIALGC | |
1161 void do_list(AdaptiveFreeList<Chunk_t>* fl) { | |
0 | 1162 fl->set_hint(hint); |
1163 assert(fl->hint() == 0 || fl->hint() > fl->size(), | |
1164 "Current hint is inconsistent"); | |
1165 if (fl->surplus() > 0) { | |
1166 hint = fl->size(); | |
1167 } | |
1168 } | |
6885 | 1169 #endif // SERIALGC |
0 | 1170 }; |
1171 | |
6885 | 1172 template <class Chunk_t, template <class> class FreeList_t> |
1173 void BinaryTreeDictionary<Chunk_t, FreeList_t>::set_tree_hints(void) { | |
1174 setTreeHintsClosure<Chunk_t, FreeList_t> sth(0); | |
0 | 1175 sth.do_tree(root()); |
1176 } | |
1177 | |
1178 // Save count before previous sweep and splits and coalesces. | |
6885 | 1179 template <class Chunk_t, template <class> class FreeList_t> |
1180 class clearTreeCensusClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
1181 void do_list(FreeList<Chunk_t>* fl) {} | |
1182 | |
1183 #ifndef SERIALGC | |
1184 void do_list(AdaptiveFreeList<Chunk_t>* fl) { | |
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1185 fl->set_prev_sweep(fl->count()); |
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1186 fl->set_coal_births(0); |
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1187 fl->set_coal_deaths(0); |
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1188 fl->set_split_births(0); |
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1189 fl->set_split_deaths(0); |
0 | 1190 } |
6885 | 1191 #endif // SERIALGC |
0 | 1192 }; |
1193 | |
6885 | 1194 template <class Chunk_t, template <class> class FreeList_t> |
1195 void BinaryTreeDictionary<Chunk_t, FreeList_t>::clear_tree_census(void) { | |
1196 clearTreeCensusClosure<Chunk_t, FreeList_t> ctc; | |
0 | 1197 ctc.do_tree(root()); |
1198 } | |
1199 | |
1200 // Do reporting and post sweep clean up. | |
6885 | 1201 template <class Chunk_t, template <class> class FreeList_t> |
1202 void BinaryTreeDictionary<Chunk_t, FreeList_t>::end_sweep_dict_census(double splitSurplusPercent) { | |
0 | 1203 // Does walking the tree 3 times hurt? |
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1204 set_tree_surplus(splitSurplusPercent); |
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1205 set_tree_hints(); |
0 | 1206 if (PrintGC && Verbose) { |
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1207 report_statistics(); |
0 | 1208 } |
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1209 clear_tree_census(); |
0 | 1210 } |
1211 | |
1212 // Print summary statistics | |
6885 | 1213 template <class Chunk_t, template <class> class FreeList_t> |
1214 void BinaryTreeDictionary<Chunk_t, FreeList_t>::report_statistics() const { | |
1215 FreeBlockDictionary<Chunk_t>::verify_par_locked(); | |
0 | 1216 gclog_or_tty->print("Statistics for BinaryTreeDictionary:\n" |
1217 "------------------------------------\n"); | |
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1218 size_t total_size = total_chunk_size(debug_only(NULL)); |
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1219 size_t free_blocks = num_free_blocks(); |
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1220 gclog_or_tty->print("Total Free Space: %d\n", total_size); |
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1221 gclog_or_tty->print("Max Chunk Size: %d\n", max_chunk_size()); |
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1222 gclog_or_tty->print("Number of Blocks: %d\n", free_blocks); |
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1223 if (free_blocks > 0) { |
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1224 gclog_or_tty->print("Av. Block Size: %d\n", total_size/free_blocks); |
0 | 1225 } |
6885 | 1226 gclog_or_tty->print("Tree Height: %d\n", tree_height()); |
0 | 1227 } |
1228 | |
1229 // Print census information - counts, births, deaths, etc. | |
1230 // for each list in the tree. Also print some summary | |
1231 // information. | |
6885 | 1232 template <class Chunk_t, template <class> class FreeList_t> |
1233 class PrintTreeCensusClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
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1234 int _print_line; |
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1235 size_t _total_free; |
6885 | 1236 FreeList_t<Chunk_t> _total; |
0 | 1237 |
1238 public: | |
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1239 PrintTreeCensusClosure() { |
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1240 _print_line = 0; |
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1241 _total_free = 0; |
0 | 1242 } |
6885 | 1243 FreeList_t<Chunk_t>* total() { return &_total; } |
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1244 size_t total_free() { return _total_free; } |
6885 | 1245 void do_list(FreeList<Chunk_t>* fl) { |
12
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1246 if (++_print_line >= 40) { |
6885 | 1247 FreeList_t<Chunk_t>::print_labels_on(gclog_or_tty, "size"); |
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1248 _print_line = 0; |
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1249 } |
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1250 fl->print_on(gclog_or_tty); |
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1251 _total_free += fl->count() * fl->size() ; |
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1252 total()->set_count( total()->count() + fl->count() ); |
6885 | 1253 } |
1254 | |
1255 #ifndef SERIALGC | |
1256 void do_list(AdaptiveFreeList<Chunk_t>* fl) { | |
1257 if (++_print_line >= 40) { | |
1258 FreeList_t<Chunk_t>::print_labels_on(gclog_or_tty, "size"); | |
1259 _print_line = 0; | |
1260 } | |
1261 fl->print_on(gclog_or_tty); | |
1262 _total_free += fl->count() * fl->size() ; | |
1263 total()->set_count( total()->count() + fl->count() ); | |
1264 total()->set_bfr_surp( total()->bfr_surp() + fl->bfr_surp() ); | |
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1265 total()->set_surplus( total()->split_deaths() + fl->surplus() ); |
6885 | 1266 total()->set_desired( total()->desired() + fl->desired() ); |
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1267 total()->set_prev_sweep( total()->prev_sweep() + fl->prev_sweep() ); |
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1268 total()->set_before_sweep(total()->before_sweep() + fl->before_sweep()); |
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1269 total()->set_coal_births( total()->coal_births() + fl->coal_births() ); |
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1270 total()->set_coal_deaths( total()->coal_deaths() + fl->coal_deaths() ); |
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1271 total()->set_split_births(total()->split_births() + fl->split_births()); |
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1272 total()->set_split_deaths(total()->split_deaths() + fl->split_deaths()); |
0 | 1273 } |
6885 | 1274 #endif // SERIALGC |
0 | 1275 }; |
1276 | |
6885 | 1277 template <class Chunk_t, template <class> class FreeList_t> |
1278 void BinaryTreeDictionary<Chunk_t, FreeList_t>::print_dict_census(void) const { | |
0 | 1279 |
1280 gclog_or_tty->print("\nBinaryTree\n"); | |
6885 | 1281 FreeList_t<Chunk_t>::print_labels_on(gclog_or_tty, "size"); |
1282 PrintTreeCensusClosure<Chunk_t, FreeList_t> ptc; | |
0 | 1283 ptc.do_tree(root()); |
1284 | |
6885 | 1285 FreeList_t<Chunk_t>* total = ptc.total(); |
1286 FreeList_t<Chunk_t>::print_labels_on(gclog_or_tty, " "); | |
1287 } | |
1288 | |
1289 #ifndef SERIALGC | |
1290 template <> | |
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1291 void AFLBinaryTreeDictionary::print_dict_census(void) const { |
6885 | 1292 |
1293 gclog_or_tty->print("\nBinaryTree\n"); | |
1294 AdaptiveFreeList<FreeChunk>::print_labels_on(gclog_or_tty, "size"); | |
1295 PrintTreeCensusClosure<FreeChunk, AdaptiveFreeList> ptc; | |
1296 ptc.do_tree(root()); | |
1297 | |
1298 AdaptiveFreeList<FreeChunk>* total = ptc.total(); | |
1299 AdaptiveFreeList<FreeChunk>::print_labels_on(gclog_or_tty, " "); | |
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1300 total->print_on(gclog_or_tty, "TOTAL\t"); |
0 | 1301 gclog_or_tty->print( |
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1302 "total_free(words): " SIZE_FORMAT_W(16) |
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1303 " growth: %8.5f deficit: %8.5f\n", |
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1304 ptc.total_free(), |
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1305 (double)(total->split_births() + total->coal_births() |
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1306 - total->split_deaths() - total->coal_deaths()) |
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1307 /(total->prev_sweep() != 0 ? (double)total->prev_sweep() : 1.0), |
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1308 (double)(total->desired() - total->count()) |
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1309 /(total->desired() != 0 ? (double)total->desired() : 1.0)); |
0 | 1310 } |
6885 | 1311 #endif // SERIALGC |
0 | 1312 |
6885 | 1313 template <class Chunk_t, template <class> class FreeList_t> |
1314 class PrintFreeListsClosure : public AscendTreeCensusClosure<Chunk_t, FreeList_t> { | |
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1315 outputStream* _st; |
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1316 int _print_line; |
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1317 |
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1318 public: |
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1319 PrintFreeListsClosure(outputStream* st) { |
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1320 _st = st; |
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1321 _print_line = 0; |
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1322 } |
6885 | 1323 void do_list(FreeList_t<Chunk_t>* fl) { |
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1324 if (++_print_line >= 40) { |
6885 | 1325 FreeList_t<Chunk_t>::print_labels_on(_st, "size"); |
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1326 _print_line = 0; |
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1327 } |
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1328 fl->print_on(gclog_or_tty); |
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1329 size_t sz = fl->size(); |
6885 | 1330 for (Chunk_t* fc = fl->head(); fc != NULL; |
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1331 fc = fc->next()) { |
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1332 _st->print_cr("\t[" PTR_FORMAT "," PTR_FORMAT ") %s", |
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1333 fc, (HeapWord*)fc + sz, |
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1334 fc->cantCoalesce() ? "\t CC" : ""); |
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1335 } |
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1336 } |
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1337 }; |
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1338 |
6885 | 1339 template <class Chunk_t, template <class> class FreeList_t> |
1340 void BinaryTreeDictionary<Chunk_t, FreeList_t>::print_free_lists(outputStream* st) const { | |
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1341 |
6885 | 1342 FreeList_t<Chunk_t>::print_labels_on(st, "size"); |
1343 PrintFreeListsClosure<Chunk_t, FreeList_t> pflc(st); | |
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1344 pflc.do_tree(root()); |
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1345 } |
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1346 |
0 | 1347 // Verify the following tree invariants: |
1348 // . _root has no parent | |
1349 // . parent and child point to each other | |
1350 // . each node's key correctly related to that of its child(ren) | |
6885 | 1351 template <class Chunk_t, template <class> class FreeList_t> |
1352 void BinaryTreeDictionary<Chunk_t, FreeList_t>::verify_tree() const { | |
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1353 guarantee(root() == NULL || total_free_blocks() == 0 || |
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1354 total_size() != 0, "_total_size should't be 0?"); |
0 | 1355 guarantee(root() == NULL || root()->parent() == NULL, "_root shouldn't have parent"); |
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1356 verify_tree_helper(root()); |
0 | 1357 } |
1358 | |
6885 | 1359 template <class Chunk_t, template <class> class FreeList_t> |
1360 size_t BinaryTreeDictionary<Chunk_t, FreeList_t>::verify_prev_free_ptrs(TreeList<Chunk_t, FreeList_t>* tl) { | |
0 | 1361 size_t ct = 0; |
6885 | 1362 for (Chunk_t* curFC = tl->head(); curFC != NULL; curFC = curFC->next()) { |
0 | 1363 ct++; |
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1364 assert(curFC->prev() == NULL || curFC->prev()->is_free(), |
0 | 1365 "Chunk should be free"); |
1366 } | |
1367 return ct; | |
1368 } | |
1369 | |
1370 // Note: this helper is recursive rather than iterative, so use with | |
1371 // caution on very deep trees; and watch out for stack overflow errors; | |
1372 // In general, to be used only for debugging. | |
6885 | 1373 template <class Chunk_t, template <class> class FreeList_t> |
1374 void BinaryTreeDictionary<Chunk_t, FreeList_t>::verify_tree_helper(TreeList<Chunk_t, FreeList_t>* tl) const { | |
0 | 1375 if (tl == NULL) |
1376 return; | |
1377 guarantee(tl->size() != 0, "A list must has a size"); | |
1378 guarantee(tl->left() == NULL || tl->left()->parent() == tl, | |
1379 "parent<-/->left"); | |
1380 guarantee(tl->right() == NULL || tl->right()->parent() == tl, | |
1381 "parent<-/->right");; | |
1382 guarantee(tl->left() == NULL || tl->left()->size() < tl->size(), | |
1383 "parent !> left"); | |
1384 guarantee(tl->right() == NULL || tl->right()->size() > tl->size(), | |
1385 "parent !< left"); | |
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1386 guarantee(tl->head() == NULL || tl->head()->is_free(), "!Free"); |
0 | 1387 guarantee(tl->head() == NULL || tl->head_as_TreeChunk()->list() == tl, |
1388 "list inconsistency"); | |
1389 guarantee(tl->count() > 0 || (tl->head() == NULL && tl->tail() == NULL), | |
1390 "list count is inconsistent"); | |
1391 guarantee(tl->count() > 1 || tl->head() == tl->tail(), | |
1392 "list is incorrectly constructed"); | |
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1393 size_t count = verify_prev_free_ptrs(tl); |
0 | 1394 guarantee(count == (size_t)tl->count(), "Node count is incorrect"); |
1395 if (tl->head() != NULL) { | |
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1396 tl->head_as_TreeChunk()->verify_tree_chunk_list(); |
0 | 1397 } |
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1398 verify_tree_helper(tl->left()); |
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1399 verify_tree_helper(tl->right()); |
0 | 1400 } |
1401 | |
6885 | 1402 template <class Chunk_t, template <class> class FreeList_t> |
1403 void BinaryTreeDictionary<Chunk_t, FreeList_t>::verify() const { | |
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1404 verify_tree(); |
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1405 guarantee(total_size() == total_size_in_tree(root()), "Total Size inconsistency"); |
0 | 1406 } |
6026 | 1407 |
6885 | 1408 template class TreeList<Metablock, FreeList>; |
1409 template class BinaryTreeDictionary<Metablock, FreeList>; | |
1410 template class TreeChunk<Metablock, FreeList>; | |
1411 | |
1412 template class TreeList<Metachunk, FreeList>; | |
1413 template class BinaryTreeDictionary<Metachunk, FreeList>; | |
1414 template class TreeChunk<Metachunk, FreeList>; | |
1415 | |
1416 | |
6026 | 1417 #ifndef SERIALGC |
1418 // Explicitly instantiate these types for FreeChunk. | |
6885 | 1419 template class TreeList<FreeChunk, AdaptiveFreeList>; |
1420 template class BinaryTreeDictionary<FreeChunk, AdaptiveFreeList>; | |
1421 template class TreeChunk<FreeChunk, AdaptiveFreeList>; | |
1422 | |
6026 | 1423 #endif // SERIALGC |