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1 | /* -*- C++ -*- */ |
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2 | |
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3 | #ifndef _SBRKHEAP_H_ |
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4 | #define _SBRKHEAP_H_ |
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5 | |
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6 | #ifdef WIN32 |
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7 | |
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8 | // If we're using Windows, we'll need to link in sbrk.c, |
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9 | // a replacement for sbrk(). |
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10 | |
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11 | extern "C" void * sbrk (size_t sz); |
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12 | |
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13 | #endif |
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14 | |
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15 | /* |
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16 | * @class SbrkHeap |
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17 | * @brief A source heap that is a thin wrapper over sbrk. |
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18 | * |
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19 | * As it stands, memory cannot be returned to sbrk(). |
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20 | * This is not a significant limitation, since only memory |
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21 | * at the end of the break point can ever be returned anyway. |
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22 | */ |
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23 | |
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24 | class SbrkHeap { |
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25 | public: |
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26 | SbrkHeap (void) |
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27 | {} |
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28 | |
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29 | inline void * malloc (size_t sz) { |
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30 | return sbrk(sz); |
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31 | } |
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32 | |
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33 | inline void free (void *) { } |
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34 | inline int remove (void *) { return 0; } |
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35 | }; |
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36 | |
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37 | |
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38 | |
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39 | #endif |
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40 | |
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