splitheap.h

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#ifndef _SPLITHEAP_H_
#define _SPLITHEAP_H_

template <class SuperHeap>
class SplitHeap : public SuperHeap {
public:
  inline void * malloc (const size_t sz)
  {
    void * ptr = SuperHeap::malloc (sz);
    if (ptr != NULL) {
                markInUse (ptr);
                size_t oldSize = getSize(ptr);
                if (oldSize <= sz + sizeof(double)) {
                        return ptr;
                } else {
                        void * splitPiece = split (ptr, sz);
                        if (splitPiece != NULL) {
                                // printf ("split %d into %d and %d\n", oldSize, getSize(ptr), getSize(splitPiece));
                                markFree (splitPiece);
                                SuperHeap::free (splitPiece);
                        }
                }
        }
    return ptr;
  }
};

#endif

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