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      1 /*
      2  * Copyright 2010, The Android Open Source Project
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef ClassTracker_h
     27 #define ClassTracker_h
     28 
     29 #include <utils/threads.h>
     30 #include <wtf/HashMap.h>
     31 #include <wtf/text/StringHash.h>
     32 
     33 #define DEBUG_COUNT // Add instances tracking
     34 #undef DEBUG_COUNT
     35 
     36 namespace WebCore {
     37 
     38 class LayerAndroid;
     39 
     40 class ClassTracker {
     41 public:
     42     static ClassTracker* instance();
     43     void show();
     44     void increment(String name);
     45     void decrement(String name);
     46     void add(LayerAndroid*);
     47     void remove(LayerAndroid*);
     48 private:
     49     ClassTracker() {};
     50     HashMap<String, int> m_classes;
     51     Vector<LayerAndroid*> m_layers;
     52     static ClassTracker* gInstance;
     53     android::Mutex m_lock;
     54 };
     55 
     56 }
     57 
     58 #endif // ClassTracker_h
     59