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MDEV-4018 : Feature Request: microseconds in GET_LOCK()

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Updated MDL_context's lock methods to accept double precision
lock_wait_timeout.
This commit is contained in:
Nirbhay Choubey
2014-11-30 01:05:34 -05:00
parent 5298e21c32
commit 3e792e6cbc
5 changed files with 75 additions and 8 deletions
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40
mysql-test/r/func_misc.result
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@ -1169,6 +1169,46 @@ INET6_NTOA(ip) HEX(ip) LENGTH(ip)
DROP TABLE t1;
DROP TABLE t2;
#
# MDEV-4018 : Microseconds in GET_LOCK()
#
# -> Switching to connection 'default'
select is_used_lock('test') = connection_id();
is_used_lock('test') = connection_id()
NULL
# GET_LOCK returns 1 if it manages to acquire a lock
select get_lock('test', 0);
get_lock('test', 0)
1
# -> Switching to connection 'con1'
select is_used_lock('test') = connection_id();
is_used_lock('test') = connection_id()
0
select get_lock('test', 0);
get_lock('test', 0)
0
select get_lock('test', 1.0);
get_lock('test', 1.0)
0
select get_lock('test', 1.5);
get_lock('test', 1.5)
0
select get_lock('test', 0.1);
get_lock('test', 0.1)
0
select get_lock('test', 0.000001);
get_lock('test', 0.000001)
0
select get_lock('test', 0.0000000000000001);
get_lock('test', 0.0000000000000001)
0
# -> Switching to connection 'default'
select is_used_lock('test') = connection_id();
is_used_lock('test') = connection_id()
1
select release_lock('test');
release_lock('test')
1
# -- Done.