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  • Committer: Monty Taylor
  • Date: 2009-09-30 07:01:32 UTC
  • mto: This revision was merged to the branch mainline in revision 1184.
  • Revision ID: mordred@inaugust.com-20090930070132-b1ol1xu1rpajdddy
Small namespace cleanup.

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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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}