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Move common code to a separate function

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This commit is contained in:
Sergey Vojtovich 2016-05-12 16:29:17 +04:00
parent 286416404a
commit f7048e9a92
1 changed files with 28 additions and 26 deletions
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54
sql/table_cache.cc
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@ -152,6 +152,31 @@ static void tc_remove_table(TABLE *table)
}
static void tc_remove_all_unused_tables(TDC_element *element,
TABLE_list *purge_tables,
bool mark_flushed)
{
TABLE *table;
element->wait_for_mdl_deadlock_detector();
/*
Mark share flushed in order to ensure that it gets
automatically deleted once it is no longer referenced.
Note that code in TABLE_SHARE::wait_for_old_version() assumes that
marking share flushed is followed by purge of unused table
shares.
*/
if (mark_flushed)
element->flushed= true;
while ((table= element->free_tables.pop_front()))
{
tc_remove_table(table);
purge_tables->push_front(table);
}
}
/**
Free all unused TABLE objects.
@ -176,17 +201,8 @@ struct tc_purge_arg
static my_bool tc_purge_callback(TDC_element *element, tc_purge_arg *arg)
{
TABLE *table;
mysql_mutex_lock(&element->LOCK_table_share);
element->wait_for_mdl_deadlock_detector();
if (arg->mark_flushed)
element->flushed= true;
while ((table= element->free_tables.pop_front()))
{
tc_remove_table(table);
arg->purge_tables.push_front(table);
}
tc_remove_all_unused_tables(element, &arg->purge_tables, arg->mark_flushed);
mysql_mutex_unlock(&element->LOCK_table_share);
return FALSE;
}
@ -880,23 +896,9 @@ bool tdc_remove_table(THD *thd, enum_tdc_remove_table_type remove_type,
element->ref_count++;
element->wait_for_mdl_deadlock_detector();
/*
Mark share flushed in order to ensure that it gets
automatically deleted once it is no longer referenced.
tc_remove_all_unused_tables(element, &purge_tables,
remove_type != TDC_RT_REMOVE_NOT_OWN_KEEP_SHARE);
Note that code in TABLE_SHARE::wait_for_old_version() assumes that
marking share flushed is followed by purge of unused table
shares.
*/
if (remove_type != TDC_RT_REMOVE_NOT_OWN_KEEP_SHARE)
element->flushed= true;
while ((table= element->free_tables.pop_front()))
{
tc_remove_table(table);
purge_tables.push_front(table);
}
if (kill_delayed_threads)
kill_delayed_threads_for_table(element);