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Viewing changes to storage/innobase/include/fut0fut.ic

  • Committer: Brian Aker
  • Date: 2010-12-08 22:35:56 UTC
  • mfrom: (1819.9.158 update-innobase)
  • Revision ID: brian@tangent.org-20101208223556-37mi4omqg7lkjzf3
Merge in Stewart's changes, 1.3 changes.

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storage/innobase/include/fut0fut.ic
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/**********************************************************************
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File-based utilities
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(c) 1995 Innobase Oy
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Created 12/13/1995 Heikki Tuuri
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***********************************************************************/
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#include "sync0rw.h"
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#include "buf0buf.h"
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/************************************************************************
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Gets a pointer to a file address and latches the page. */
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UNIV_INLINE
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byte*
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fut_get_ptr(
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/*========*/
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                                /* out: pointer to a byte in a frame; the file
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                                page in the frame is bufferfixed and latched */
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        ulint           space,  /* in: space id */
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        ulint           zip_size,/* in: compressed page size in bytes
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                                or 0 for uncompressed pages */
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        fil_addr_t      addr,   /* in: file address */
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        ulint           rw_latch, /* in: RW_S_LATCH, RW_X_LATCH */
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        mtr_t*          mtr)    /* in: mtr handle */
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{
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        buf_block_t*    block;
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        byte*           ptr;
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        ut_ad(addr.boffset < UNIV_PAGE_SIZE);
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        ut_ad((rw_latch == RW_S_LATCH) || (rw_latch == RW_X_LATCH));
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        block = buf_page_get(space, zip_size, addr.page, rw_latch, mtr);
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        ptr = buf_block_get_frame(block) + addr.boffset;
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#ifdef UNIV_SYNC_DEBUG
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        buf_block_dbg_add_level(block, SYNC_NO_ORDER_CHECK);
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#endif /* UNIV_SYNC_DEBUG */
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        return(ptr);
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}