MMgc/HeapGraph.h

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  39
  40 #ifndef __MMGC_HEAP_GRAPH__
  41 #define __MMGC_HEAP_GRAPH__
  42
  43 #ifndef MMGC_HEAP_GRAPH
  44
  45 #define MMGC_WB_EDGE(_a, _v)
  46
  47 #else
  48
  49 #define MMGC_WB_EDGE(_a, _v) {if(GCHeap::GetGCHeap()->config.dumpFalsePositives) mutatorGraph.edge(_a, _v); }
  50
  51 namespace MMgc
  52 {
  53         /**
  54            HeapGraph represents the edges in the GC heap.
  55         */
  56         class HeapGraph
  57         {
  58         public:
  59                 HeapGraph() {}
  60                 ~HeapGraph() { clear(); }
  61
  62                 // this is called before the mutation takes place
  63                 void edge(const void *addr, const void *newValue);
  64                 GCHashtable *getPointers(const void *obj);
  65                 void clear();
  66         private:
  67                 // key = addr, value = container
  68                 GCHashtable_VMPI backEdges;
  69         };
  70 }
  71 #endif // MMGC_HEAP_GRAPH
  72
  73 #endif /* __MMGC_HEAP_GRAPH__ */