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37 lines
973 B
Text
37 lines
973 B
Text
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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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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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byte* ptr;
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ut_ad(mtr);
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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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ptr = buf_page_get(space, addr.page, rw_latch, mtr) + addr.boffset;
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buf_page_dbg_add_level(ptr, SYNC_NO_ORDER_CHECK);
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return(ptr);
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}
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