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