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branches/zip: buf_page_peek(): Return TRUE also if the page exists in the

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buffer pool in compressed form only.

buf_page_peek_block(): Remove.

mutex_enter_fast_func: Remove.
This commit is contained in:
marko
2007-01-05 11:19:56 +00:00
parent e2db2a873f
commit 51d0b62947
4 changed files with 24 additions and 61 deletions
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31
buf/buf0buf.c
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@@ -1346,37 +1346,6 @@ buf_page_make_young(
mutex_exit(&(buf_pool->mutex));
}
/************************************************************************
Returns the buffer control block if the page can be found in the buffer
pool. NOTE that it is possible that the page is not yet read
from disk, though. This is a very low-level function: use with care! */
buf_block_t*
buf_page_peek_block(
/*================*/
/* out: control block if found from page hash table,
otherwise NULL; NOTE that the page is not necessarily
yet read from disk! */
ulint space, /* in: space id */
ulint offset) /* in: page number */
{
buf_block_t* block;
mutex_enter_fast(&(buf_pool->mutex));
block = (buf_block_t*) buf_page_hash_get(space, offset);
mutex_exit(&(buf_pool->mutex));
if (block
&& UNIV_UNLIKELY(buf_block_get_state(block)
!= BUF_BLOCK_FILE_PAGE)) {
block = NULL;
}
return(block);
}
/************************************************************************
Resets the check_index_page_at_flush field of a page if found in the buffer
pool. */