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1 | #ifndef _SPLITHEAP_H_ |
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2 | #define _SPLITHEAP_H_ |
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3 | |
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4 | template <class SuperHeap> |
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5 | class SplitHeap : public SuperHeap { |
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6 | public: |
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7 | inline void * malloc (const size_t sz) |
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8 | { |
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9 | void * ptr = SuperHeap::malloc (sz); |
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10 | if (ptr != NULL) { |
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11 | markInUse (ptr); |
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12 | size_t oldSize = getSize(ptr); |
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13 | if (oldSize <= sz + sizeof(double)) { |
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14 | return ptr; |
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15 | } else { |
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16 | void * splitPiece = split (ptr, sz); |
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17 | if (splitPiece != NULL) { |
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18 | // printf ("split %d into %d and %d\n", oldSize, getSize(ptr), getSize(splitPiece)); |
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19 | markFree (splitPiece); |
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20 | SuperHeap::free (splitPiece); |
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21 | } |
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22 | } |
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23 | } |
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24 | return ptr; |
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25 | } |
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26 | }; |
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27 | |
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28 | #endif |
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