~drizzle-trunk/drizzle/development

# Let's see if FLUSH TABLES WITH READ LOCK can be killed when waiting

# for running commits to finish (in the past it could not)

# This will not be a meaningful test on non-debug servers so will be

# skipped.

# If running mysql-test-run --debug, the --debug added by

# mysql-test-run to the mysqld command line will override the one of

# -master.opt. But this test is designed to still pass then (though it

# won't test anything interesting).

-- source include/have_debug.inc

# Disable concurrent inserts to avoid test failures when reading the

# connection id which was inserted into a table by another thread.

set @old_concurrent_insert= @@global.concurrent_insert;

set @@global.concurrent_insert= 0;

connect (con1,localhost,root,,);

connect (con2,localhost,root,,);

connection con1;

--disable_warnings

drop table if exists t1;

--enable_warnings

create table t1 (kill_id int);

insert into t1 values(connection_id());

# Thanks to the parameter we passed to --debug, this FLUSH will

# block on a debug build running with our --debug=make_global... It

# will block until killed. In other cases (non-debug build or other

# --debug) it will succeed immediately

connection con1;

send flush tables with read lock;

# kill con1

connection con2;

select ((@id := kill_id) - kill_id) from t1; 

# Wait for the debug sync point, test won't run on non-debug

# builds anyway.

let $wait_condition=

  select count(*) = 1 from information_schema.processlist

  where state = "Waiting for all running commits to finish"

  and info = "flush tables with read lock";

--source include/wait_condition.inc

kill connection @id;

connection con1;

# On debug builds it will be error 1053 (killed); on non-debug, or

# debug build running without our --debug=make_global..., will be

# error 0 (no error). The only important thing to test is that on

# debug builds with our --debug=make_global... we don't hang forever.

--error 0,1053,2013

reap;

connection con2;

drop table t1;

connection default;

# Restore global concurrent_insert value

set @@global.concurrent_insert= @old_concurrent_insert;