include/core/SkPtrRecorder.h

/*
 * 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 SkPtrRecorder_DEFINED
#define SkPtrRecorder_DEFINED

#include "SkRefCnt.h"
#include "SkTDArray.h"

class SkPtrRecorder : public SkRefCnt {
public:
    uint32_t recordPtr(void*);
    
    int count() const { return fList.count(); }
    void getPtrs(void* array[]) const;

    void reset();

protected:
    virtual void incPtr(void* ptr) {}
    virtual void decPtr(void* ptr) {}

private:
    struct Pair {
        void*       fPtr;
        uint32_t    fIndex;
    };
    SkTDArray<Pair>  fList;
    
    static int Cmp(const Pair& a, const Pair& b);
    
    typedef SkRefCnt INHERITED;
};

#endif