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Member "heaplayers-351/heaplayers/stats.h" (25 Nov 2003, 1893 Bytes) of package /linux/misc/old/heaplayers_3_5_1.tar.gz:


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    1 #ifndef _HLSTATS_H_
    2 #define _HLSTATS_H_
    3 
    4 #include <map>
    5 
    6 template <class SuperHeap>
    7 class InUseHeap : public SuperHeap {
    8 private:
    9   typedef std::map<void *, int> mapType;
   10 public:
   11   InUseHeap (void)
   12     : inUse (0),
   13       maxInUse (0)
   14   {}
   15   void * malloc (size_t sz) {
   16     void * ptr = SuperHeap::malloc (sz);
   17     if (ptr != NULL) {
   18       inUse += sz;
   19       if (maxInUse < inUse) {
   20     maxInUse = inUse;
   21       }
   22       allocatedObjects.insert (std::pair<void *, int>(ptr, sz));
   23     }
   24     return ptr;
   25   }
   26   void free (void * ptr) {
   27     mapType::iterator i;
   28     i = allocatedObjects.find (ptr);
   29     if (i == allocatedObjects.end()) {
   30       // oops -- called free on object i didn't allocate.
   31       assert (0);
   32     }
   33     inUse -= (*i).second;
   34     allocatedObjects.erase (i);
   35     SuperHeap::free (ptr);
   36   }
   37 
   38   int getInUse (void) const {
   39     return inUse;
   40   }
   41   int getMaxInUse (void) const {
   42     return maxInUse;
   43   }
   44 private:
   45   int inUse;
   46   int maxInUse;
   47   mapType allocatedObjects;
   48 };
   49 
   50 
   51 template <class SuperHeap>
   52 class AllocatedHeap : public SuperHeap {
   53 public:
   54   AllocatedHeap (void)
   55     : allocated (0),
   56       maxAllocated (0)
   57   {}
   58   void * malloc (size_t sz) {
   59     void * ptr = SuperHeap::malloc (sz);
   60     if (ptr != NULL) {
   61       allocated += getSize(ptr);
   62       if (maxAllocated < allocated) {
   63     maxAllocated = allocated;
   64       }
   65     }
   66     return ptr;
   67   }
   68   void free (void * ptr) {
   69     allocated -= getSize(ptr);
   70     SuperHeap::free (ptr);
   71   }
   72 
   73   int getAllocated (void) const {
   74     return allocated;
   75   }
   76   int getMaxAllocated (void) const {
   77     return maxAllocated;
   78   }
   79 private:
   80   int allocated;
   81   int maxAllocated;
   82 };
   83 
   84 
   85 template <class SuperHeap>
   86 class StatsHeap : public SuperHeap {
   87 public:
   88   ~StatsHeap (void) {
   89     printf ("In use = %d, allocated = %d\n", getInUse(), getAllocated());
   90     printf ("Max in use = %d, max allocated = %d\n", getMaxInUse(), getMaxAllocated());
   91   }
   92 };
   93 
   94 #endif