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Kirill Smelkov
mariadb
Commits
007b4101
Commit
007b4101
authored
Oct 29, 2007
by
joerg@trift2
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Merge trift2.:/MySQL/M50/clone-5.0
into trift2.:/MySQL/M50/push-5.0
parents
40872761
af22cc40
Changes
1
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sql/sql_cache.cc
sql/sql_cache.cc
+6
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sql/sql_cache.cc
View file @
007b4101
...
@@ -1032,12 +1032,14 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
...
@@ -1032,12 +1032,14 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
Query_cache_block_table
*
block_table
,
*
block_table_end
;
Query_cache_block_table
*
block_table
,
*
block_table_end
;
ulong
tot_length
;
ulong
tot_length
;
Query_cache_query_flags
flags
;
Query_cache_query_flags
flags
;
#ifndef __WIN__
const
uint
spin_treshold
=
50000
;
const
uint
spin_treshold
=
50000
;
const
double
lock_time_treshold
=
0.1
;
/* Time in seconds */
const
double
lock_time_treshold
=
0.1
;
/* Time in seconds */
uint
spin_count
=
0
;
uint
spin_count
=
0
;
int
lock_status
=
0
;
int
lock_status
=
0
;
ulong
new_time
=
0
;
ulong
new_time
=
0
;
ulong
stop_time
=
0
;
ulong
stop_time
=
0
;
#endif
DBUG_ENTER
(
"Query_cache::send_result_to_client"
);
DBUG_ENTER
(
"Query_cache::send_result_to_client"
);
...
@@ -1085,6 +1087,9 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
...
@@ -1085,6 +1087,9 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
}
}
}
}
#ifdef __WIN__
STRUCT_LOCK
(
&
structure_guard_mutex
);
#else
stop_time
=
my_clock
()
+
(
ulong
)
lock_time_treshold
*
CLOCKS_PER_SEC
;
stop_time
=
my_clock
()
+
(
ulong
)
lock_time_treshold
*
CLOCKS_PER_SEC
;
while
((
lock_status
=
pthread_mutex_trylock
(
&
structure_guard_mutex
))
==
EBUSY
while
((
lock_status
=
pthread_mutex_trylock
(
&
structure_guard_mutex
))
==
EBUSY
&&
spin_count
<
spin_treshold
&&
spin_count
<
spin_treshold
...
@@ -1107,6 +1112,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
...
@@ -1107,6 +1112,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
thd
->
lex
->
safe_to_cache_query
=
FALSE
;
thd
->
lex
->
safe_to_cache_query
=
FALSE
;
goto
err
;
goto
err
;
}
}
#endif
if
(
query_cache_size
==
0
||
flush_in_progress
)
if
(
query_cache_size
==
0
||
flush_in_progress
)
{
{
...
...
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