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

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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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/jvmci/jvmciHashtable.cpp	Thu May 28 21:58:33 2015 +0200
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "jvmci/jvmciHashtable.hpp"
+
+template<class K, class V> bool JVMCIHashtable<K,V>::add(V value, bool replace) {
+  K key = get_key(value);
+  unsigned int hash = compute_hash(key);
+  unsigned int index = hash_to_index(hash);
+  for (JVMCIHashtableEntry<V>* e = bucket(index); e != NULL; e = e->next()) {
+    if (key_equals(get_key(e->literal_addr()), key)) {
+      if (replace) {
+        e->set_literal(value);
+      }
+      return false;
+    }
+  }
+  JVMCIHashtableEntry<V>* e = new JVMCIHashtableEntry<V>(value);
+  e->set_next(_buckets[index]);
+  _buckets[index] = e;
+  ++_number_of_entries;
+  return true;
+}
+
+template<class K, class V> V* JVMCIHashtable<K,V>::get(K key) {
+  unsigned int index = index_for(key);
+  for (JVMCIHashtableEntry<V>* e = bucket(index); e != NULL; e = e->next()) {
+    if (key_equals(get_key(e->literal_addr()), key)) {
+      return e->literal_addr();
+    }
+  }
+  return NULL;
+}
+
+template<class K, class V> void JVMCIHashtable<K, V>::for_each(ValueClosure<V>* closure) {
+  for (size_t i = 0; i < table_size(); ++i) {
+    for (JVMCIHashtableEntry<V>* e = bucket(i); e != NULL && !closure->is_aborted(); e = e->next()) {
+      closure->do_value(e->literal_addr());
+    }
+  }
+}
+
+template<class K, class V> JVMCIHashtable<K,V>::~JVMCIHashtable() {
+  for (size_t i = 0; i < table_size(); ++i) {
+    JVMCIHashtableEntry<V>* e = bucket(i);
+    while (e != NULL) {
+      JVMCIHashtableEntry<V>* current = e;
+      e = e->next();
+      delete current;
+    }
+  }
+  FREE_C_HEAP_ARRAY(JVMCIHashtableEntry*, _buckets, mtCompiler);
+}
+
+// Instantiation
+#include "jvmci/jvmciOptions.hpp"
+template class JVMCIHashtable<const char*, OptionDesc>;
+template class JVMCIHashtable<const char*, OptionValue>;