Fix for bug #7637: "Test failure: 'user_limits' on QNX and 64-bit systems"

Made user_limits.test scheduling independant (this solves failure on QNX).

Made sys_var_max_user_conn variable int sized. Changed 
max_user_connections from ulong to uint to be able to use it in 
sys_var_max_user_conn::value_ptr() (solves failures on 64-bit platforms).


mysql-test/r/user_limits.result:
  Made test scheduling independant.
mysql-test/t/user_limits.test:
  Made test scheduling independant.
sql/mysql_priv.h:
  Made max_user_connections to be the same size as
  USER_RESOURCES::user_conn (to be able to use them in
  sys_var_max_user_conn::value_ptr()).
sql/mysqld.cc:
  Made max_user_connections to be the same size as
  USER_RESOURCES::user_conn (to be able to use them in
  sys_var_max_user_conn::value_ptr()).
sql/set_var.cc:
  sys_var::item():
    Added support for int system variables.
sql/set_var.h:
  Made sys_var_max_user_conn to be int sized variable.

1 files changed, 8 insertions, 0 deletions

diff --git a/mysql-test/t/user_limits.test b/mysql-test/t/user_limits.test
index 50c16e5e114..729894a588a 100644
--- a/mysql-test/t/user_limits.test
+++ b/mysql-test/t/user_limits.test
@@ -19,6 +19,8 @@ flush privileges;
 
 # Test of MAX_QUERIES_PER_HOUR limit
 grant usage on *.* to mysqltest_1@localhost with max_queries_per_hour 2;
+# This ensures that counters are reset and makes test scheduling independent
+flush user_resources;
 connect (mqph, localhost, mysqltest_1,,);
 connection mqph;
 select * from t1;
@@ -37,6 +39,7 @@ disconnect mqph2;
 
 # Test of MAX_UPDATES_PER_HOUR limit
 grant usage on *.* to mysqltest_1@localhost with max_updates_per_hour 2;
+flush user_resources;
 connect (muph, localhost, mysqltest_1,,);
 connection muph;
 select * from t1;
@@ -60,6 +63,7 @@ disconnect muph2;
 
 # Test of MAX_CONNECTIONS_PER_HOUR limit
 grant usage on *.* to mysqltest_1@localhost with max_connections_per_hour 2;
+flush user_resources;
 connect (mcph1, localhost, mysqltest_1,,);
 connection mcph1;
 select * from t1;
@@ -86,6 +90,7 @@ drop user mysqltest_1@localhost;
 # We need this to reset internal mqh_used variable
 flush privileges;
 grant usage on *.* to mysqltest_1@localhost with max_user_connections 2;
+flush user_resources;
 connect (muc1, localhost, mysqltest_1,,);
 connection muc1;
 select * from t1;
@@ -102,6 +107,7 @@ select * from t1;
 # Changing of limit should also help (and immediately) 
 connection default;
 grant usage on *.* to mysqltest_1@localhost with max_user_connections 3;
+flush user_resources;
 connect (muc4, localhost, mysqltest_1,,);
 connection muc4;
 select * from t1;
@@ -127,6 +133,7 @@ set global max_user_connections= 2;
 select @@session.max_user_connections, @@global.max_user_connections;
 # Let us check that global limit works
 grant usage on *.* to mysqltest_1@localhost;
+flush user_resources;
 connect (muca1, localhost, mysqltest_1,,);
 connection muca1;
 select @@session.max_user_connections, @@global.max_user_connections;
@@ -139,6 +146,7 @@ connect (muca3, localhost, mysqltest_1,,);
 # Now we are testing that per-account limit prevails over gloabl limit
 connection default;
 grant usage on *.* to mysqltest_1@localhost with max_user_connections 3;
+flush user_resources;
 connect (muca3, localhost, mysqltest_1,,);
 connection muca3;
 select @@session.max_user_connections, @@global.max_user_connections;