--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/graal/graalVmIds.cpp	Wed Jun 08 13:40:25 2011 +0200
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2011, 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 "precompiled.hpp"
+#include "c1x/c1x_VmIds.hpp"
+#include "ci/ciUtilities.hpp"
+
+// VmIds implementation
+
+GrowableArray<address>* VmIds::_stubs = NULL;
+GrowableArray<jobject>* VmIds::_localHandles = NULL;
+
+
+void VmIds::initializeObjects() {
+  if (_stubs == NULL) {
+    assert(_localHandles == NULL, "inconsistent state");
+    _stubs = new (ResourceObj::C_HEAP) GrowableArray<address> (64, true);
+    _localHandles = new (ResourceObj::C_HEAP) GrowableArray<jobject> (64, true);
+  }
+  assert(_localHandles->length() == 0, "invalid state");
+}
+
+void VmIds::cleanupLocalObjects() {
+  for (int i = 0; i < _localHandles->length(); i++) {
+    JNIHandles::destroy_global(_localHandles->at(i));
+  }
+  _localHandles->clear();
+}
+
+jlong VmIds::addStub(address stub) {
+  assert(!_stubs->contains(stub), "duplicate stub");
+  return _stubs->append(stub) | STUB;
+}
+
+jlong VmIds::add(Handle obj, jlong type) {
+  assert(!obj.is_null(), "cannot add NULL handle");
+  int idx = -1;
+  for (int i = 0; i < _localHandles->length(); i++)
+    if (JNIHandles::resolve_non_null(_localHandles->at(i)) == obj()) {
+      idx = i;
+      break;
+    }
+  if (idx == -1) {
+    if (JavaThread::current()->thread_state() == _thread_in_vm) {
+      idx = _localHandles->append(JNIHandles::make_global(obj));
+    } else {
+      VM_ENTRY_MARK;
+      idx = _localHandles->append(JNIHandles::make_global(obj));
+    }
+  }
+  return idx | type;
+}
+
+address VmIds::getStub(jlong id) {
+  assert((id & TYPE_MASK) == STUB, "wrong id type, STUB expected");
+  assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _stubs->length(), "STUB index out of bounds");
+  return _stubs->at(id & ~TYPE_MASK);
+}
+
+oop VmIds::getObject(jlong id) {
+  assert((id & TYPE_MASK) != STUB, "wrong id type");
+  assert((id & ~TYPE_MASK) >= 0 && (id & ~TYPE_MASK) < _localHandles->length(), "index out of bounds");
+  return JNIHandles::resolve_non_null(_localHandles->at(id & ~TYPE_MASK));
+}
+