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Making FLUSH TABLES WITH READ LOCK killable while it's waiting for running commits to finish. Normally this step is not long but it's still nice to be killable

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(especially in case of bug like BUG#6732 "FLUSH TABLES WITH READ LOCK + COMMIT makes next FLUSH...LOCK hang forever").


sql/lock.cc:
  making FLUSH TABLES WITH READ LOCK killable while it's waiting for running commits to finish
sql/mysql_priv.h:
  prototype change
sql/sql_parse.cc:
  now it's possible that make_global_read_lock_block_commit fails (killed)
This commit is contained in:
unknown
2004-12-02 23:02:38 +01:00
parent d967118ff6
commit 75fa4c00ef
6 changed files with 82 additions and 7 deletions
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sql/mysql_priv.h
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@@ -1096,7 +1096,7 @@ void unlock_global_read_lock(THD *thd);
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh,
bool is_not_commit);
void start_waiting_global_read_lock(THD *thd);
void make_global_read_lock_block_commit(THD *thd);
bool make_global_read_lock_block_commit(THD *thd);
/* Lock based on name */
int lock_and_wait_for_table_name(THD *thd, TABLE_LIST *table_list);