From 11e45077acba2e757799a00b3be9d63fec36a7cc Mon Sep 17 00:00:00 2001 From: Elliott Hughes Date: Tue, 16 Aug 2011 17:40:46 -0700 Subject: Add a reference table implementation. This is suitable for pinned array references and the like. I've also brought in some of the human-readable type printing stuff for the benefit of the reference table dumping code. This patch includes tests, but doesn't yet wire anything up. Change-Id: Iaf6066201bbd254e033dee4fd0b8dfd0bc17afa9 --- src/reference_table.h | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/reference_table.h (limited to 'src/reference_table.h') diff --git a/src/reference_table.h b/src/reference_table.h new file mode 100644 index 0000000000..140cc37ea1 --- /dev/null +++ b/src/reference_table.h @@ -0,0 +1,58 @@ +/* + * 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_SRC_REFERENCE_TABLE_H_ +#define ART_SRC_REFERENCE_TABLE_H_ + +#include +#include +#include +#include + +namespace art { + +class Object; + +#define kInvalidIndirectRefObject reinterpret_cast(0xdead4321) +#define kClearedJniWeakGlobal reinterpret_cast(0xdead1234) + +/* + * Maintain a table of references. Used for internal local references, + * 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); + + void Add(Object* obj); + + void Remove(Object* obj); + + size_t Size() const; + + void Dump() const; + + private: + std::string name_; + std::vector entries_; + size_t max_size_; +}; + +} // namespace art + +#endif // ART_SRC_REFERENCE_TABLE_H_ -- cgit v1.2.3-59-g8ed1b