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Viewing changes to storage/innobase/include/fsp0fsp.ic

  • Committer: Monty Taylor
  • Date: 2008-11-16 05:36:13 UTC
  • mto: (584.1.9 devel)
  • mto: This revision was merged to the branch mainline in revision 589.
  • Revision ID: monty@inaugust.com-20081116053613-bld4rqxhlkb49c02
Split out cache_row and type_holder.

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storage/innobase/include/fsp0fsp.ic
 
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/******************************************************
 
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File space management
 
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(c) 1995 Innobase Oy
 
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Created 12/18/1995 Heikki Tuuri
 
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*******************************************************/
 
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/***************************************************************************
 
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Checks if a page address is an extent descriptor page address. */
 
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UNIV_INLINE
 
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ibool
 
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fsp_descr_page(
 
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/*===========*/
 
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                        /* out: TRUE if a descriptor page */
 
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        ulint   zip_size,/* in: compressed page size in bytes;
 
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                        0 for uncompressed pages */
 
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        ulint   page_no)/* in: page number */
 
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{
 
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        ut_ad(ut_is_2pow(zip_size));
 
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        if (!zip_size) {
 
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                return(UNIV_UNLIKELY((page_no & (UNIV_PAGE_SIZE - 1))
 
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                                     == FSP_XDES_OFFSET));
 
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        }
 
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        return(UNIV_UNLIKELY((page_no & (zip_size - 1)) == FSP_XDES_OFFSET));
 
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}