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1 #include "dbmalloc.h" |
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2 #include "dbutil.h" |
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3 |
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4 struct dbmalloc_header { |
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5 unsigned int epoch; |
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6 struct dbmalloc_header *prev; |
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7 struct dbmalloc_header *next; |
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8 }; |
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9 |
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10 static void put_alloc(struct dbmalloc_header *header); |
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11 static void remove_alloc(struct dbmalloc_header *header); |
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12 |
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13 /* end of the linked list */ |
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14 static struct dbmalloc_header* staple; |
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15 |
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16 unsigned int current_epoch = 0; |
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17 |
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18 void m_malloc_set_epoch(unsigned int epoch) { |
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19 current_epoch = epoch; |
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20 } |
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21 |
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22 void m_malloc_free_epoch(unsigned int epoch, int dofree) { |
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23 struct dbmalloc_header* header; |
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24 struct dbmalloc_header* nextheader = NULL; |
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25 struct dbmalloc_header* oldstaple = staple; |
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26 staple = NULL; |
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27 /* free allocations from this epoch, create a new staple-anchored list from |
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28 the remainder */ |
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29 for (header = oldstaple; header; header = nextheader) |
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30 { |
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31 nextheader = header->next; |
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32 if (header->epoch == epoch) { |
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33 if (dofree) { |
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34 free(header); |
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35 } |
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36 } else { |
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