merge from mysql-trunk-runtime

mysql-test/include/check_concurrent_insert.inc

@@ -0,0 +1,96 @@
+#
+# SUMMARY
+#   Check if statement reading table '$table' allows concurrent
+#   inserts in it.
+#
+# PARAMETERS 
+#   $table         Table in which concurrent inserts should be allowed.
+#   $con_aux1      Name of the first auxiliary connection to be used by this
+#                  script.
+#   $con_aux2      Name of the second auxiliary connection to be used by this
+#                  script.
+#   $statement     Statement to be checked.
+#   $restore_table Table which might be modified affected by statement to be
+#                  checked and thus needs backing up before its execution
+#                  and restoring after it (can be empty).
+#
+# EXAMPLE
+#    lock_sync.test
+#
+--disable_result_log
+--disable_query_log
+
+# Reset DEBUG_SYNC facility for safety.
+set debug_sync= "RESET";
+
+if (`SELECT '$restore_table' <> ''`)
+{
+--eval create table t_backup select * from $restore_table;
+}
+
+connection $con_aux1;
+set debug_sync='after_lock_tables_takes_lock SIGNAL parked WAIT_FOR go';
+--send_eval $statement;
+
+connection $con_aux2;
+set debug_sync='now WAIT_FOR parked';
+--send_eval insert into $table values (0);
+
+--enable_result_log
+--enable_query_log
+connection default;
+# Wait until concurrent insert is successfully executed while
+# statement being checked has its tables locked.
+# We use wait_condition.inc instead of simply executing
+# concurrent insert here in order to avoid deadlocks if test
+# fails and timing out instead.
+let $wait_condition=
+  select count(*) = 0 from information_schema.processlist
+  where info = "insert into $table values (0)";
+--source include/wait_condition.inc
+
+--disable_result_log
+--disable_query_log
+
+if ($success)
+{
+# Apparently concurrent insert was successfully executed.
+# To be safe against wait_condition.inc succeeding due to
+# races let us first reap concurrent insert to ensure that
+# it has really been successfully executed.
+connection $con_aux2;
+--reap
+connection default;
+set debug_sync= 'now SIGNAL go';
+connection $con_aux1;
+--reap
+connection default;
+--echo Success: '$statement' allows concurrent inserts into '$table'.
+}
+if (!$success)
+{
+# Waiting has timed out. Apparently concurrent insert was blocked.
+# So to be able to continue we need to end our statement first.
+set debug_sync= 'now SIGNAL go';
+connection $con_aux1;
+--reap
+connection $con_aux2;
+--reap
+connection default;
+--echo Error: '$statement' doesn't allow concurrent inserts into '$table'!
+}
+
+--eval delete from $table where i = 0;
+
+if (`SELECT '$restore_table' <> ''`)
+{
+--eval truncate table $restore_table;
+--eval insert into $restore_table select * from t_backup;
+drop table t_backup;
+}
+
+# Clean-up. Reset DEBUG_SYNC facility after use.
+set debug_sync= "RESET";
+
+--enable_result_log
+--enable_query_log

mysql-test/include/check_no_concurrent_insert.inc

@@ -0,0 +1,81 @@
+#
+# SUMMARY
+#   Check that statement reading table '$table' doesn't allow concurrent
+#   inserts in it.
+#
+# PARAMETERS 
+#   $table         Table in which concurrent inserts should be disallowed.
+#   $con_aux1      Name of the first auxiliary connection to be used by this
+#                  script.
+#   $con_aux2      Name of the second auxiliary connection to be used by this
+#                  script.
+#   $statement     Statement to be checked.
+#   $restore_table Table which might be modified affected by statement to be
+#                  checked and thus needs backing up before its execution
+#                  and restoring after it (can be empty).
+#
+# EXAMPLE
+#    lock_sync.test
+#
+--disable_result_log
+--disable_query_log
+
+# Reset DEBUG_SYNC facility for safety.
+set debug_sync= "RESET";
+
+if (`SELECT '$restore_table' <> ''`)
+{
+--eval create table t_backup select * from $restore_table;
+}
+
+connection $con_aux1;
+set debug_sync='after_lock_tables_takes_lock SIGNAL parked WAIT_FOR go';
+--send_eval $statement;
+
+connection $con_aux2;
+set debug_sync='now WAIT_FOR parked';
+--send_eval insert into $table values (0);
+
+--enable_result_log
+--enable_query_log
+connection default;
+# Wait until concurrent insert is successfully blocked because
+# of our statement.
+let $wait_condition=
+  select count(*) = 1 from information_schema.processlist
+  where state = "Table lock" and info = "insert into $table values (0)";
+--source include/wait_condition.inc
+
+--disable_result_log
+--disable_query_log
+
+set debug_sync= 'now SIGNAL go';
+connection $con_aux1;
+--reap
+connection $con_aux2;
+--reap
+connection default;
+
+if ($success)
+{
+--echo Success: '$statement' doesn't allow concurrent inserts into '$table'.
+}
+if (!$success)
+{
+--echo Error: '$statement' allows concurrent inserts into '$table'!
+}
+
+--eval delete from $table where i = 0;
+
+if (`SELECT '$restore_table' <> ''`)
+{
+--eval truncate table $restore_table;
+--eval insert into $restore_table select * from t_backup;
+drop table t_backup;
+}
+
+# Clean-up. Reset DEBUG_SYNC facility after use.
+set debug_sync= "RESET";
+
+--enable_result_log
+--enable_query_log

mysql-test/include/check_no_row_lock.inc

@@ -0,0 +1,71 @@
+#
+# SUMMARY
+#   Check if statement affecting or reading table '$table' doesn't
+#   take any kind of locks on its rows.
+#
+# PARAMETERS 
+#   $table      Table for which presence of row locks should be checked.
+#   $con_aux    Name of auxiliary connection to be used by this script.
+#   $statement  Statement to be checked.
+#
+# EXAMPLE
+#    innodb_mysql_lock2.test
+#
+--disable_result_log
+--disable_query_log
+
+connection default;
+begin;
+--eval select * from $table for update;
+
+connection $con_aux;
+begin;
+--send_eval $statement;
+
+--enable_result_log
+--enable_query_log
+
+connection default;
+# Wait until statement is successfully executed while
+# all rows in table are X-locked. This means that it
+# does not acquire any row locks.
+# We use wait_condition.inc instead of simply executing
+# statement here in order to avoid deadlocks if test
+# fails and timing out instead.
+let $wait_condition=
+  select count(*) = 0 from information_schema.processlist
+  where info = "$statement";
+--source include/wait_condition.inc
+
+--disable_result_log
+--disable_query_log
+
+if ($success)
+{
+# Apparently statement was successfully executed and thus it
+# has not required any row locks.
+# To be safe against wait_condition.inc succeeding due to
+# races let us first reap the statement being checked to
+# ensure that it has been successfully executed.
+connection $con_aux;
+--reap
+rollback;
+connection default;
+rollback;
+--echo Success: '$statement' doesn't take row locks on '$table'.
+}
+if (!$success)
+{
+# Waiting has timed out. Apparently statement was blocked on
+# some row lock. So to be able to continue we need to unlock
+# rows first.
+rollback;
+connection $con_aux;
+--reap
+rollback;
+connection default;
+--echo Error: '$statement' takes some row locks on '$table'!
+}
+
+--enable_result_log
+--enable_query_log

mysql-test/include/check_shared_row_lock.inc

@@ -0,0 +1,61 @@
+#
+# SUMMARY
+#   Check if statement reading table '$table' takes shared locks
+#   on some of its rows.
+#
+# PARAMETERS 
+#   $table          Table for which presence of row locks should be checked.
+#   $con_aux        Name of auxiliary connection to be used by this script.
+#   $statement      Statement to be checked.
+#   $wait_statement Sub-statement which is supposed to acquire locks (should
+#                   be the same as $statement for ordinary statements).
+#
+# EXAMPLE
+#    innodb_mysql_lock2.test
+#
+--disable_result_log
+--disable_query_log
+
+connection default;
+begin;
+--eval select * from $table for update;
+
+connection $con_aux;
+begin;
+--send_eval $statement;
+
+--enable_result_log
+--enable_query_log
+
+connection default;
+# Wait until statement is successfully blocked because
+# all rows in table are X-locked. This means that at
+# least it acquires S-locks on some of rows.
+let $wait_condition=
+  select count(*) = 1 from information_schema.processlist
+  where state in ("Sending data","statistics", "preparing") and
+        info = "$wait_statement";
+--source include/wait_condition.inc
+
+--disable_result_log
+--disable_query_log
+
+rollback;
+
+connection $con_aux;
+--reap
+rollback;
+
+connection default;
+--enable_result_log
+--enable_query_log
+
+if ($success)
+{
+--echo Success: '$statement' takes shared row locks on '$table'.
+}
+
+if (!$success)
+{
+--echo Error: '$statement' hasn't taken shared row locks on '$table'!
+}