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  • Committer: Brian Aker
  • Date: 2010-09-09 21:45:53 UTC
  • mto: (1756.1.2 build) (1768.2.1 trunk)
  • mto: This revision was merged to the branch mainline in revision 1757.
  • Revision ID: brian@tangent.org-20100909214553-e687rmf5zk9478on
Force unique to just use memory and let the OS handle paging.

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drizzled/unique.h
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class Unique : public memory::SqlAlloc
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{
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  DYNAMIC_ARRAY file_ptrs;
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  ulong max_elements;
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  size_t max_in_memory_size;
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  internal::IO_CACHE *file;
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  TREE tree;
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  unsigned char *record_pointers;
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  bool flush();
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  uint32_t size;
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public:
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  ulong elements_in_tree() { return tree.elements_in_tree; }
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  inline bool unique_add(void *ptr)
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  {
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    if (tree.elements_in_tree > max_elements && flush())
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      return(1);
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    return(!tree_insert(&tree, ptr, 0, tree.custom_arg));
 
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    return (not tree_insert(&tree, ptr, 0, tree.custom_arg));
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  }
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  bool get(Table *table);