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annotate src/share/vm/jvmci/jvmciHashtable.cpp @ 21562:47bebae7454f

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Merge.
author Doug Simon <doug.simon@oracle.com>
date Thu, 28 May 2015 21:58:33 +0200
parents src/share/vm/graal/graalHashtable.cpp@cecb4e39521c
children 59c3f921e454
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1 /*
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 */
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23
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24 #include "jvmci/jvmciHashtable.hpp"
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25
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26 template<class K, class V> bool JVMCIHashtable<K,V>::add(V value, bool replace) {
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27 K key = get_key(value);
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28 unsigned int hash = compute_hash(key);
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29 unsigned int index = hash_to_index(hash);
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30 for (JVMCIHashtableEntry<V>* e = bucket(index); e != NULL; e = e->next()) {
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31 if (key_equals(get_key(e->literal_addr()), key)) {
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32 if (replace) {
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33 e->set_literal(value);
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34 }
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35 return false;
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36 }
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37 }
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38 JVMCIHashtableEntry<V>* e = new JVMCIHashtableEntry<V>(value);
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39 e->set_next(_buckets[index]);
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40 _buckets[index] = e;
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41 ++_number_of_entries;
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42 return true;
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43 }
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44
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45 template<class K, class V> V* JVMCIHashtable<K,V>::get(K key) {
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46 unsigned int index = index_for(key);
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47 for (JVMCIHashtableEntry<V>* e = bucket(index); e != NULL; e = e->next()) {
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48 if (key_equals(get_key(e->literal_addr()), key)) {
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49 return e->literal_addr();
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50 }
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51 }
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52 return NULL;
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53 }
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54
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55 template<class K, class V> void JVMCIHashtable<K, V>::for_each(ValueClosure<V>* closure) {
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56 for (size_t i = 0; i < table_size(); ++i) {
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57 for (JVMCIHashtableEntry<V>* e = bucket(i); e != NULL && !closure->is_aborted(); e = e->next()) {
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58 closure->do_value(e->literal_addr());
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59 }
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60 }
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61 }
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62
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63 template<class K, class V> JVMCIHashtable<K,V>::~JVMCIHashtable() {
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64 for (size_t i = 0; i < table_size(); ++i) {
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65 JVMCIHashtableEntry<V>* e = bucket(i);
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66 while (e != NULL) {
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67 JVMCIHashtableEntry<V>* current = e;
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68 e = e->next();
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69 delete current;
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70 }
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71 }
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72 FREE_C_HEAP_ARRAY(JVMCIHashtableEntry*, _buckets, mtCompiler);
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73 }
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74
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75 // Instantiation
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76 #include "jvmci/jvmciOptions.hpp"
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77 template class JVMCIHashtable<const char*, OptionDesc>;
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78 template class JVMCIHashtable<const char*, OptionValue>;