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Viewing changes to plugin/myisam/keycache.h

  • Committer: Brian Aker
  • Date: 2010-01-18 19:39:12 UTC
  • mfrom: (1251.2.9 working)
  • Revision ID: brian@gaz-20100118193912-rf7ncdnrhvowyfo6
Merge Jay

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plugin/myisam/keycache.h
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  bool resize_in_flush;       /* true during flush of resize operation    */
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  bool can_be_used;           /* usage of cache for read/write is allowed */
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  uint32_t hash_entries;             /* max number of entries in the hash table  */
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  size_t key_cache_mem_size;      /* specified size of the cache memory       */
 
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  uint32_t key_cache_mem_size;      /* specified size of the cache memory       */
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  uint32_t key_cache_block_size;     /* size of the page buffer of a cache block */
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  int disk_blocks;               /* max number of blocks in the cache        */
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  ulong min_warm_blocks;         /* min number of warm blocks;               */
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    initializing the key cache.
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  */
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  uint64_t param_buff_size;    /* size the memory allocated for the cache  */
 
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  uint32_t param_buff_size;    /* size the memory allocated for the cache  */
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  uint32_t param_block_size;   /* size of the blocks in the key cache      */
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  uint32_t param_division_limit; /* min. percentage of warm blocks           */
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  uint32_t param_age_threshold;    /* determines when hot block is downgraded  */
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extern KEY_CACHE dflt_key_cache_var, *dflt_key_cache;
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extern int init_key_cache(KEY_CACHE *keycache, uint32_t key_cache_block_size,
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                          size_t use_mem, uint32_t division_limit,
 
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                          uint32_t use_mem, uint32_t division_limit,
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                          uint32_t age_threshold);
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extern int resize_key_cache(KEY_CACHE *keycache, uint32_t key_cache_block_size,
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                            size_t use_mem, uint32_t division_limit,
 
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                            uint32_t use_mem, uint32_t division_limit,
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                            uint32_t age_threshold);
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extern unsigned char *key_cache_read(KEY_CACHE *keycache,
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                            int file, my_off_t filepos, int level,