MinikinRefCounted.h revision b80c1f19c58b927820a8a24bf2218e5645724608 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17// Base class for reference counted objects in Minikin
18
19#ifndef MINIKIN_REF_COUNTED_H
20#define MINIKIN_REF_COUNTED_H
21
22namespace android {
23
24class MinikinRefCounted {
25public:
26    void RefLocked() { mRefcount_++; }
27    void UnrefLocked() { if (--mRefcount_ == 0) { delete this; } }
28
29    // These refcount operations take the global lock.
30    void Ref();
31    void Unref();
32
33    MinikinRefCounted() : mRefcount_(1) { }
34
35    virtual ~MinikinRefCounted() { };
36private:
37    int mRefcount_;
38};
39
40}
41
42#endif   // MINIKIN_REF_COUNTED_H