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Kirill Smelkov
mariadb
Commits
0d5f0ab7
Commit
0d5f0ab7
authored
Dec 07, 2006
by
marko
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branches/zip: buf_buddy_alloc_free(), buf_buddy_alloc_free_low():
Add parameter "split" for enabling splits.
parent
2a25f556
Changes
3
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3 changed files
with
21 additions
and
5 deletions
+21
-5
buf/buf0buddy.c
buf/buf0buddy.c
+11
-1
include/buf0buddy.h
include/buf0buddy.h
+3
-1
include/buf0buddy.ic
include/buf0buddy.ic
+7
-3
No files found.
buf/buf0buddy.c
View file @
0d5f0ab7
...
...
@@ -22,7 +22,9 @@ buf_buddy_alloc_free_low(
/*=====================*/
/* out: allocated block, or NULL
if buf_pool->zip_free[] was empty */
ulint
i
)
/* in: index of buf_pool->zip_free[] */
ulint
i
,
/* in: index of buf_pool->zip_free[] */
ibool
split
)
/* in: TRUE=attempt splitting,
FALSE=try to allocate exact size */
{
buf_page_t
*
bpage
;
...
...
@@ -37,6 +39,14 @@ buf_buddy_alloc_free_low(
ut_a
(
buf_page_get_state
(
bpage
)
==
BUF_BLOCK_ZIP_FREE
);
UT_LIST_REMOVE
(
list
,
buf_pool
->
zip_free
[
i
],
bpage
);
}
else
if
(
split
&&
i
+
1
<
BUF_BUDDY_SIZES
)
{
bpage
=
buf_buddy_alloc_free_low
(
i
+
1
,
split
);
if
(
bpage
)
{
buf_page_t
*
buddy
=
bpage
+
BUF_BUDDY_LOW
<<
i
;
UT_LIST_ADD_FIRST
(
list
,
buf_pool
->
zip_free
[
i
],
buddy
);
}
}
return
(
bpage
);
...
...
include/buf0buddy.h
View file @
0d5f0ab7
...
...
@@ -47,7 +47,9 @@ UNIV_INLINE
void
*
buf_buddy_alloc_free
(
/*=================*/
ulint
size
)
/* in: block size, up to UNIV_PAGE_SIZE / 2 */
ulint
size
,
/* in: block size, up to UNIV_PAGE_SIZE / 2 */
ibool
split
)
/* in: TRUE=attempt splitting,
FALSE=try to allocate exact size */
__attribute__
((
malloc
));
#ifndef UNIV_NONINL
...
...
include/buf0buddy.ic
View file @
0d5f0ab7
...
...
@@ -22,7 +22,9 @@ buf_buddy_alloc_free_low(
/*=====================*/
/* out: allocated block, or NULL
if buf_pool->zip_free[] was empty */
ulint i) /* in: index of buf_pool->zip_free[] */
ulint i, /* in: index of buf_pool->zip_free[] */
ibool split) /* in: TRUE=attempt splitting,
FALSE=try to allocate exact size */
__attribute__((malloc));
/**************************************************************************
...
...
@@ -70,13 +72,15 @@ UNIV_INLINE
void*
buf_buddy_alloc_free(
/*=================*/
ulint size) /* in: block size, up to UNIV_PAGE_SIZE / 2 */
ulint size, /* in: block size, up to UNIV_PAGE_SIZE / 2 */
ibool split) /* in: TRUE=attempt splitting,
FALSE=try to allocate exact size */
{
#ifdef UNIV_SYNC_DEBUG
ut_a(mutex_own(&buf_pool->mutex));
#endif /* UNIV_SYNC_DEBUG */
return(buf_buddy_alloc_free_low(buf_buddy_get_slot(size)));
return(buf_buddy_alloc_free_low(buf_buddy_get_slot(size)
, split
));
}
#ifdef UNIV_MATERIALIZE
...
...
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