mariadb/include/fut0fut.ic
marko 5669dc3d2a branches/zip: Reduce the number of buf_block_align() calls.
btr_block_get(): New function to return buf_block_t.

btr_page_alloc(), buf_page_get_release_on_io(), buf_page_get_gen(),
buf_page_create(), fseg_create(), fseg_create_general(): Return buf_block_t.

buf_page_get_known_nowait(): Expect buf_block_t instead of buf_frame_t.

buf_frame_get_newest_modification(): Replace with
buf_block_get_newest_modification().

buf_page_dbg_add_level(): Replace with buf_block_dbg_add_level().

buf_block_get_zip_size(): New function.

buf_block_get_page_zip(): Reintroduce.

recv_recover_page(): Replace page, space, page_no with block.

ibuf_bitmap_page_init(): Replace page, zip_size with block.

ibuf_parse_bitmap_init(): Remove the parameter zip_size.

btr_search_drop_page_hash_index(): Replace page with block.
2006-10-12 11:05:22 +00:00

39 lines
1 KiB
Text

/**********************************************************************
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 */
{
buf_block_t* block;
byte* ptr;
ut_ad(addr.boffset < UNIV_PAGE_SIZE);
ut_ad((rw_latch == RW_S_LATCH) || (rw_latch == RW_X_LATCH));
block = buf_page_get(space, addr.page, rw_latch, mtr);
ptr = buf_block_get_frame(block) + addr.boffset;
#ifdef UNIV_SYNC_DEBUG
buf_block_dbg_add_level(block, SYNC_NO_ORDER_CHECK);
#endif /* UNIV_SYNC_DEBUG */
return(ptr);
}