upload android base code part3

android/art/runtime/reference_table.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_REFERENCE_TABLE_H_
+#define ART_RUNTIME_REFERENCE_TABLE_H_
+
+#include <cstddef>
+#include <iosfwd>
+#include <string>
+#include <vector>
+
+#include "base/allocator.h"
+#include "base/mutex.h"
+#include "gc_root.h"
+#include "obj_ptr.h"
+
+namespace art {
+namespace mirror {
+class Object;
+}  // namespace mirror
+
+// Maintain a table of references.  Used for JNI monitor references and
+// JNI pinned array references.
+//
+// None of the functions are synchronized.
+class ReferenceTable {
+ public:
+  ReferenceTable(const char* name, size_t initial_size, size_t max_size);
+  ~ReferenceTable();
+
+  void Add(ObjPtr<mirror::Object> obj) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  void Remove(ObjPtr<mirror::Object> obj) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  size_t Size() const;
+
+  void Dump(std::ostream& os) REQUIRES_SHARED(Locks::mutator_lock_);
+
+  void VisitRoots(RootVisitor* visitor, const RootInfo& root_info)
+      REQUIRES_SHARED(Locks::mutator_lock_);
+
+ private:
+  typedef std::vector<GcRoot<mirror::Object>,
+                      TrackingAllocator<GcRoot<mirror::Object>, kAllocatorTagReferenceTable>> Table;
+  static void Dump(std::ostream& os, Table& entries)
+      REQUIRES_SHARED(Locks::mutator_lock_);
+  friend class IndirectReferenceTable;  // For Dump.
+
+  std::string name_;
+  Table entries_;
+  size_t max_size_;
+};
+
+}  // namespace art
+
+#endif  // ART_RUNTIME_REFERENCE_TABLE_H_