src/hotspot/share/classfile/classLoaderData.inline.hpp
changeset 47216 71c04702a3d5
parent 46968 9119841280f4
child 48873 9536c39ac6de
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/classfile/classLoaderData.inline.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2011, 2017, 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 "classfile/classLoaderData.hpp"
+#include "classfile/javaClasses.hpp"
+#include "oops/oop.inline.hpp"
+
+inline ClassLoaderData* ClassLoaderData::class_loader_data_or_null(oop loader) {
+  if (loader == NULL) {
+    return ClassLoaderData::the_null_class_loader_data();
+  }
+  return java_lang_ClassLoader::loader_data(loader);
+}
+
+inline ClassLoaderData* ClassLoaderData::class_loader_data(oop loader) {
+  ClassLoaderData* loader_data = class_loader_data_or_null(loader);
+  assert(loader_data != NULL, "Must be");
+  return loader_data;
+}
+
+
+inline ClassLoaderData *ClassLoaderDataGraph::find_or_create(Handle loader, TRAPS) {
+  guarantee(loader() != NULL && oopDesc::is_oop(loader()), "Loader must be oop");
+  // Gets the class loader data out of the java/lang/ClassLoader object, if non-null
+  // it's already in the loader_data, so no need to add
+  ClassLoaderData* loader_data= java_lang_ClassLoader::loader_data(loader());
+  if (loader_data) {
+     return loader_data;
+  }
+  return ClassLoaderDataGraph::add(loader, false, THREAD);
+}