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Kirill Smelkov
mariadb
Commits
a80c88b6
Commit
a80c88b6
authored
Sep 17, 2013
by
John Esmet
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Merge branch 'bugs/70'
parents
a6087a86
0e4fa3e6
Changes
1
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10 additions
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4 deletions
+10
-4
locktree/range_buffer.cc
locktree/range_buffer.cc
+10
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locktree/range_buffer.cc
View file @
a80c88b6
...
...
@@ -272,13 +272,19 @@ void range_buffer::append_point(const DBT *key) {
}
void
range_buffer
::
maybe_grow
(
size_t
size
)
{
static
const
size_t
initial_size
=
4096
;
static
const
size_t
aggressive_growth_threshold
=
128
*
1024
;
if
(
m_buf_current
+
size
>
m_buf_size
)
{
const
size_t
needed
=
m_buf_current
+
size
;
if
(
m_buf_size
<
needed
)
{
if
(
m_buf_size
==
0
)
{
m_buf_size
=
initial_size
;
}
// aggressively grow the range buffer to the threshold,
// but only additivately increase the size after that.
if
(
m_buf_size
<
aggressive_growth_threshold
)
{
m_buf_size
=
m_buf_size
?
m_buf_size
*
2
:
get_initial_size
(
size
);
}
else
{
while
(
m_buf_size
<
needed
&&
m_buf_size
<
aggressive_growth_threshold
)
{
m_buf_size
<<=
1
;
}
while
(
m_buf_size
<
needed
)
{
m_buf_size
+=
aggressive_growth_threshold
;
}
XREALLOC
(
m_buf
,
m_buf_size
);
...
...
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