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global read lock code now uses a dedicated mutex

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(otherwise a deadlock when ALTER writes to
binlog holding LOCK_open, it causes binlog rotation,
binlog waits for prepared transactions to commit, and commit
needs LOCK_open to check for global read lock)


mysql-test/r/flush.result:
  global read lock code now uses a dedicated mutex
mysql-test/t/flush.test:
  global read lock code now uses a dedicated mutex
sql/lock.cc:
  global read lock code now uses a dedicated mutex
sql/mysql_priv.h:
  global read lock code now uses a dedicated mutex
sql/mysqld.cc:
  global read lock code now uses a dedicated mutex
sql/sql_table.cc:
  global read lock code now uses a dedicated mutex
This commit is contained in:
unknown
2005-03-16 08:40:19 +01:00
parent fc9e2b42d9
commit 232dc9221d
6 changed files with 31 additions and 30 deletions
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2
mysql-test/r/flush.result
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@ -8,7 +8,7 @@ n
3
flush tables with read lock;
drop table t2;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
ERROR HY000: Can't execute the query because you have a conflicting read lock
drop table t2;
unlock tables;
create database mysqltest;

2
mysql-test/t/flush.test
View File

@ -37,7 +37,7 @@ connection con1;
select * from t1;
connection con2;
flush tables with read lock;
--error 1099;
--error 1223
drop table t2;
connection con1;
send drop table t2;